阅读说明：本技术 具有调整底座的测距装置 (Distance measuring device with adjusting base ) 是由 程龙军 张和君 陈源 廖学文 梁志明 于 2021-09-15 设计创作，主要内容包括：本发明涉及一种具有调整底座的测距装置,是利用激光进行测距的装置,其包括：测距主机、用于承载测距主机的连接球以及与测距主机连接并用于调整测距主机的姿态的调整底座,调整底座包括用于承载连接球的基座、可转动地环绕在基座外侧的旋转机构、连接测距主机与旋转机构的连杆机构；旋转机构配置为与连接球配合调整测距主机的姿态以使测距主机以第一旋转方向进行转动；连杆机构包括依次可转动地连接的第一连接部、第二连接部、第三连接部和第四连接部,第一连接部与测距主机连接,第四连接部与旋转机构连接,连杆机构配置为与连接球配合调整测距主机的姿态以使测距主机以第二旋转方向进行转动,第一旋转方向与第二旋转方向不同。(The invention relates to a distance measuring device with an adjusting base, which is a device for measuring distance by using laser and comprises: the range finding device comprises a range finding host machine, a connecting ball for bearing the range finding host machine and an adjusting base which is connected with the range finding host machine and is used for adjusting the posture of the range finding host machine, wherein the adjusting base comprises a base for bearing the connecting ball, a rotating mechanism which can rotatably surround the outer side of the base and a connecting rod mechanism for connecting the range finding host machine and the rotating mechanism; the rotating mechanism is configured to be matched with the connecting ball to adjust the posture of the ranging host machine so that the ranging host machine can rotate in a first rotating direction; the connecting rod mechanism comprises a first connecting part, a second connecting part, a third connecting part and a fourth connecting part which are sequentially and rotatably connected, the first connecting part is connected with the ranging host, the fourth connecting part is connected with the rotating mechanism, the connecting rod mechanism is configured to be matched with the connecting ball to adjust the posture of the ranging host so that the ranging host rotates in a second rotating direction, and the first rotating direction is different from the second rotating direction.)

1. A distance measuring device with an adjusting base is a device for measuring distance by using laser, and is characterized by comprising: the range finding device comprises a range finding host machine, a connecting ball for bearing the range finding host machine, and an adjusting base which is connected with the range finding host machine and is used for adjusting the posture of the range finding host machine, wherein the adjusting base comprises a base for bearing the connecting ball, a rotating mechanism which can rotatably surround the outer side of the base, and a connecting rod mechanism for connecting the range finding host machine and the rotating mechanism; the rotating mechanism is configured to be matched with the connecting ball to adjust the posture of the distance measuring host machine so as to enable the distance measuring host machine to rotate in a first rotating direction; link mechanism is including rotationally first connecting portion, second connecting portion, third connecting portion and the fourth connecting portion that connect in proper order, first connecting portion with the range finding host computer is connected, the fourth connecting portion with rotary mechanism connects, link mechanism configure to with connect ball cooperation adjustment the gesture of range finding host computer is so that the range finding host computer rotates with the second direction of rotation, first direction of rotation with the second direction of rotation is different.

2. The ranging apparatus as claimed in claim 1,

the connecting ball is made of a magnetic metal material, and the connecting ball is arranged on the distance measuring host machine in a mode that the gravity center of the distance measuring host machine is located at the center of the connecting ball.

3. The ranging apparatus as claimed in claim 1,

the base comprises a columnar upper end part, a columnar lower end part and a columnar middle part, wherein the columnar middle part is connected with the upper end part and the lower end part, and the diameter of the middle part is smaller than that of the upper end part and the lower end part and is used for installing the rotating mechanism.

4. A ranging apparatus as claimed in claim 3,

the upper end is configured to bear the connecting ball, the upper end is magnetic, and the upper end is further provided with a limiting part so that the center of the connecting ball coincides with the axis of the base.

5. The ranging apparatus as claimed in claim 1,

the first connecting part is fixedly connected with the ranging host; the first connecting part is connected with the second connecting part through a bearing; the second connecting part is connected with the third connecting part through a first tightening screw; the third connecting part is connected with the fourth connecting part through a bearing, and the fourth connecting part is fixedly connected with the rotating mechanism.

6. The ranging apparatus as claimed in claim 5,

through the adjustment the second connecting portion with contained angle between the third connecting portion is in order to drive link mechanism so that the range finding host computer rotates with first direction of rotation, first tightening screw configuration is used for fixing the second connecting portion with the third connecting portion is in order to keep the second connecting portion with contained angle between the third connecting portion.

7. The ranging apparatus as claimed in claim 1,

the rotating mechanism comprises a first rotating part, a second rotating part, a third rotating part and a fourth rotating part which can rotatably surround the outer side of the base; the first rotating portion is arranged to be able to translate relative to the second rotating portion, and the second rotating portion is arranged to be able to rotate relative to the third rotating portion about the axis of the base.

8. The ranging apparatus as claimed in claim 7,

the first rotating part comprises a first fine adjustment screw and a first return spring, the first fine adjustment screw is used for adjusting the first rotating part, and the first fine adjustment screw is configured to push the first rotating part to enable the first rotating part and the second rotating part to translate so as to drive the connecting rod mechanism to enable the ranging host to rotate in a first rotating direction; the first return spring is configured to restore a relative position between the first rotating portion and the second rotating portion.

9. The ranging apparatus as claimed in claim 7,

the third rotating part comprises a second fine adjustment screw and a second return spring, the second fine adjustment screw is used for adjusting the second rotating part, and the second fine adjustment screw is configured to push the second rotating part to enable the second rotating part to rotate relative to the third rotating part by taking the axis of the base as a rotating center so as to drive the link mechanism to enable the range finder host to rotate in a second rotating direction; the second return spring is configured to restore a rotation angle of the second rotating portion with respect to the third rotating portion.

10. The ranging apparatus as claimed in claim 7,

the fourth rotating portion is configured to be able to drive the first rotating portion, the second rotating portion, and the third rotating portion to rotate around the axis of the base, and the fourth rotating portion has a plurality of rough adjustment screws for fixing the fourth rotating portion and the base.

Technical Field

The present invention relates generally to the field of precision optical measurement, and more particularly to a distance measuring device with an adjustable base.

Background

The laser tracker is used for measuring three-dimensional coordinates, and for the laser tracker that the cost is expensive, absolute distance measuring device only measures the distance, and to the occasion that only needs the measuring distance, absolute distance measuring device satisfies the required precision to only need manual adjustment gesture to aim at the target ball and can realize range finding direction adjustment, simple structure. Absolute ranging is typically used for distance measurement in large fields, where a range finder unit emits light that is reflected off a target ball and received by the range finder unit. When the distance of the target after moving needs to be measured, the coordinate origin of the distance measuring host machine is generally required to be ensured to be unchanged, and the distance is measured again by changing the alignment angle of the distance measuring host machine.

In order to ensure that the origin of the measured coordinate is unchanged, the prior art generally adopts a mode of combining a horizontal rotating structure and a pitching rotating structure, namely, the horizontal rotating structure is used as a base, the pitching rotating structure is installed on the base, a host is installed on the pitching rotating structure, the pitching rotating structure can be installed and connected on the base in a shaft and bearing mode, and finally, the alignment angle of the host is changed by controlling respective rotating motion through motor driving.

However, the orthogonality requirement of the horizontal rotation structure and the pitching rotation structure is very high, so that the manufacturing precision is also very high, and in order to meet the orthogonality requirement, the structure is often complex in design, the pitching adjustment and the horizontal adjustment are difficult to be controlled independently, and the manufacturing cost is high.

Disclosure of Invention

The present invention has been made in view of the above-mentioned prior art, and an object of the present invention is to provide a distance measuring device with an adjusting base, which has the advantages of simple structure, unchanged origin of coordinates during the measuring process, and good orthogonality compared to the conventional laser distance measuring device.

According to a distance measuring device of the present invention, a distance measuring device having an adjustment base measures a distance using a laser beam, and includes: the range finding host computer, be used for bearing the weight of the connection ball of range finding host computer and with the range finding host computer is connected and is used for adjusting the adjustment base of the gesture of range finding host computer. Under the condition, the connecting ball and the adjusting base form a parallel mechanism to act on the distance measuring host machine together so that the distance measuring host machine can perform corresponding posture adjustment according to measurement requirements, for example, when a target ball moves, and compared with the traditional laser distance measuring device, the distance measuring device has the advantages of simple structure, unchanged measuring coordinate origin and good orthogonality.

According to the distance measuring device related to the invention, optionally, the adjusting base comprises a base for bearing the connecting ball, a rotating mechanism which can rotatably surround the outer side of the base, and a link mechanism which connects the distance measuring host and the rotating mechanism; the rotating mechanism is configured to be matched with the connecting ball to adjust the posture of the distance measuring host machine so that the distance measuring host machine can rotate in a first rotating direction.

Under the condition, the base can bear the ranging host through the connecting ball to ensure the stability of the ranging host during measurement, the posture of the ranging host can be changed correspondingly in a pitching posture or rotated in the first direction by adjusting the connecting rod mechanism, and the posture of the ranging host can be changed correspondingly in a horizontal posture or rotated in the second direction by adjusting the rotating mechanism.

According to the distance measuring device of the present invention, optionally, the link mechanism includes a first connecting portion, a second connecting portion, a third connecting portion and a fourth connecting portion that are rotatably connected in this order, the first connecting portion is connected to the distance measuring main unit, the fourth connecting portion is connected to the rotating mechanism, and the link mechanism is configured to adjust the posture of the distance measuring main unit in cooperation with the connecting ball so as to rotate the distance measuring main unit in a second rotation direction, where the first rotation direction is different from the second rotation direction.

Under the condition, the link mechanism, the base and the ranging host with the connecting ball form a stable hinge structure, the connecting ball is equivalent to a spherical hinge, the ranging host in the hinge structure can change the pitching attitude or rotate in the first direction through the change of the adjusting angle of the link mechanism, and the first direction and the second direction are different and can provide the movement of two degrees of freedom of the ranging host so as to realize the attitude adjustment of the ranging host.

According to the distance measuring device of the present invention, the connecting ball is made of a magnetically attractable metal material, and the connecting ball is provided to the distance measuring unit such that the center of gravity of the distance measuring unit is located at the center of the connecting ball. In this case, the connection ball can be stably and fixedly placed on the base and can freely change the angle, so that the ranging host can follow the transformation, and the center of gravity of the ranging host is consistent with the center of sphere of the connection ball, so that the ranging host can keep the origin of coordinates unchanged during measurement.

According to the distance measuring device of the present invention, the base may optionally include a columnar upper end portion, a columnar lower end portion, and a columnar intermediate portion connecting the upper end portion and the lower end portion, the intermediate portion having a diameter smaller than the diameters of the upper end portion and the lower end portion and being used for mounting the rotating mechanism. In this case, the columnar base can be conveniently adapted to the connection and installation of the rotating mechanism, and the rotating mechanism is installed in the middle part of the base, so that a stable structure can be formed, the rotating mechanism can rotate on the base, and the step of installing the supporting firmware is omitted.

According to the distance measuring device of the present invention, optionally, the upper end portion is configured to bear the connecting ball, the upper end portion has magnetism, and the upper end portion is further provided with a limiting portion so that a center of the connecting ball coincides with an axis of the base. Under this condition, but the upper end portion of magnetism is connected the ball cooperation with magnetism, can make the range finding host computer remain stable when measuring, improves the range finding accuracy, and in addition, the spacing portion of upper end portion can make the centre of sphere of connecting the ball coincide with the axle center of base, directly or indirectly makes the range finding host computer measure the coordinate origin and keep unchangeable when measuring and carrying out attitude adjustment, guarantees that measured data is accurate.

According to the ranging device of the present invention, optionally, the first connection unit is fixedly connected to the ranging host; the first connecting part is connected with the second connecting part through a bearing; the second connecting part is connected with the third connecting part through a first tightening screw; the third connecting part is connected with the fourth connecting part through a bearing, and the fourth connecting part is fixedly connected with the rotating mechanism.

Under the condition, after the first connecting part of the connecting rod mechanism is fastened through a screw, the distance measuring host, the connecting ball, the connecting rod mechanism, the rotating mechanism and the base can form a mechanism similar to a four-rod mechanism on one plane, the connecting rod mechanism has power input, the connecting ball is equivalent to a ball hinge, and the distance measuring host is equivalent to one part of a rod in the four-rod mechanism, so that the change of the pitching posture of the distance measuring angle of the distance measuring host or the rotation in the first direction can be driven only by changing the connecting rod angle of the connecting rod mechanism in the mechanism.

According to the distance measuring device of the present invention, optionally, the link mechanism is driven to rotate in the first rotation direction by adjusting an included angle between the second connecting portion and the third connecting portion, and the first tightening screw is configured to fix the second connecting portion and the third connecting portion to maintain the included angle between the second connecting portion and the third connecting portion. Under the condition, when the first tightening screw is loosened, the link mechanism freely changes an included angle between the second connecting part and the third connecting part, and because the distance measuring host, the link mechanism, the base and the connecting ball are equivalent to a four-bar structure on one plane, the distance measuring host also immediately changes a distance measuring posture on the same plane when the included angle between the second connecting part and the third connecting part of the link mechanism changes, namely the distance measuring host rotates in the direction of one degree of freedom or rotates in the first direction; when the first tightening screw is tightened, the second connecting part and the third connecting part of the link mechanism can keep an included angle at the moment of tightening, in other words, the ranging host can keep a posture stable and unchanged after a certain posture is adjusted through the link mechanism.

According to the distance measuring device of the present invention, optionally, the rotating mechanism includes a first rotating part, a second rotating part, a third rotating part and a fourth rotating part which are rotatably wound around the outside of the base; the first rotating portion is arranged to be able to translate relative to the second rotating portion, and the second rotating portion is arranged to be able to rotate relative to the third rotating portion about the axis of the base.

Under the condition, the rotating mechanism is rotated through input drive to drive the connecting rod mechanism connected with the rotating mechanism to rotate around the base, and then the distance measuring host connected with the connecting rod mechanism rotates around the base, namely the distance measuring host rotates in a second direction or changes the second free direction; the relative translation of first rotating part and second rotating part can drive when range finding host computer carries out first direction rotation for link mechanism and remain the redundancy, and the relative rotation of second rotating part and third rotating part can drive link mechanism and range finding host computer and remain the redundancy when rotating with the second direction for rotary mechanism.

According to the range finder device of the present invention, optionally, the first rotating portion includes a first fine adjustment screw and a first return spring, the first fine adjustment screw is configured to push the first rotating portion to make the first rotating portion and the second rotating portion translate, so as to drive the link mechanism to make the range finder rotate in the first rotation direction; the first return spring is configured to restore a relative position between the first rotating portion and the second rotating portion.

Under this condition, the translation of first rotating part and second rotating part is adjusted jointly to first fine tuning screw and first reset spring, can convert the translation redundancy into the adjustment accuracy of meticulous adjustment in order to guarantee the every single move gesture of range finding host computer or first direction, improves the range finding precision of range finding host computer.

According to the distance measuring device of the present invention, optionally, the third rotating portion includes a second fine adjustment screw and a second return spring, the second fine adjustment screw is configured to push the second rotating portion to rotate the second rotating portion relative to the third rotating portion with the axis of the base as a rotation center, so as to drive the link mechanism to rotate the distance measuring host in a second rotation direction; the second return spring is configured to restore a rotation angle of the second rotating portion with respect to the third rotating portion.

Under this condition, the relative rotation of second rotating part and third rotating part is adjusted jointly to second fine adjustment screw and second reset spring, can change the rotation redundancy into the adjustment accuracy of meticulous adjustment in order to guarantee the horizontal gesture of range finding host computer or second direction, improves the range finding precision of range finding host computer.

According to the range finder device of the present invention, the first rotating portion may have a second protrusion, and the second fine adjustment screw and the second return spring may act on the second protrusion together to move the first rotating portion about the same axis as the second rotating portion. Under this condition, be located the second fine tuning screw and the second reset spring of second rotating part and can reduce the influence to the coarse adjustment screw of third rotating part, second fine tuning screw and second reset spring act on the second of first rotating part and protrudingly can turn into the horizontal rotation of first rotating part and can carry out fine adjustment to the horizontal rotation of first rotating part with the stroke of the screw rod of second fine tuning screw, improve the range finding precision.

According to the distance measuring device of the present invention, optionally, the fourth rotating portion is configured to be capable of driving the first rotating portion, the second rotating portion, and the third rotating portion to rotate around an axis of the base as a rotation center, and the fourth rotating portion has a plurality of rough adjustment screws for fixing the fourth rotating portion and the base. In this case, the coarse adjustment of the rotation in the horizontal or second direction of the distance measuring main unit can be performed by loosening or tightening the plurality of coarse adjustment screws on the fourth rotation part, and the coarse adjustment state can be maintained, and then the fine adjustment can be performed by the second fine adjustment screw and the second return spring, so that the distance measuring accuracy can be improved.

According to the invention, the distance measuring device with the adjusting base has the advantages of simple structure, unchanged distance measuring coordinate origin and good orthogonality compared with the traditional laser distance measuring device.

Drawings

FIG. 1 is a schematic view of a range finder with an adjustment base according to the present invention;

FIG. 2 is a side view of a distance measuring device having an adjustment base in accordance with the present invention;

FIG. 3 is a schematic diagram of a testing host with a ranging apparatus for adjusting a base according to the present invention;

FIG. 4 is a side view of a test mainframe having a ranging device with an adjustment mount in accordance with the present invention;

FIG. 5 is a schematic diagram of a connection between a distance measuring host and a connection ball of a distance measuring device with an adjustable base according to the present invention;

FIG. 6 is a schematic view of an adjustment base of a distance measuring device having an adjustment base according to the present invention;

FIG. 7 is a cross-sectional view of an adjustment base of a distance measuring device having an adjustment base according to the present invention;

FIG. 8 is a schematic view of a rotary mechanism having a distance measuring device with an adjustment base according to the present invention;

FIG. 9 is a schematic view of a base of a distance measuring device having an adjustment base in accordance with the present invention;

fig. 10 is a schematic view of a link mechanism of a distance measuring device having an adjustment base according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first", "second", "third" and "fourth", etc. in the description and claims of the present invention and the above-mentioned drawings are used for distinguishing different objects and are not used for describing a specific order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. In the following description, the same components are denoted by the same reference numerals, and redundant description thereof is omitted. The drawings are schematic and the ratio of the dimensions of the components and the shapes of the components may be different from the actual ones.

The invention provides a distance measuring device with an adjusting base, which is a device for measuring distance by using laser and has the advantages of simple structure, unchanged origin of distance measuring coordinates and good orthogonality compared with the traditional laser distance measuring device.

FIG. 1 is a schematic view of a range finder apparatus having an adjustment base according to the present invention; fig. 2 is a side view showing a distance measuring apparatus having an adjustment base according to the present invention.

As shown in fig. 1 and 2, a distance measuring device 1 with an adjusting base is a device for measuring distance by using laser, and optionally, it may include: the range finder comprises a range finder main body 12, a connecting ball 13 for carrying the range finder main body 12, and an adjusting base 14 connected with the range finder main body 12 and used for adjusting the posture of the range finder main body 12. In this case, the connecting ball 13 and the adjusting base 14 form a parallel mechanism to act on the distance measuring host 12 together, so that the distance measuring host 12 performs corresponding posture adjustment according to the measurement requirement, for example, when the target ball moves, and by the distance measuring device 1 as described above, the advantages of simple structure, unchanged origin of measurement coordinate and good orthogonality compared with the conventional laser distance measuring device can be realized.

Fig. 5 is a schematic diagram showing connection between a distance measuring master and a connection ball of a distance measuring device having an adjustment base according to the present invention.

As shown in fig. 5, in some examples, the connection ball 13 may be made of a magnetically attractable metal material, and the connection ball 13 may be disposed on the ranging host 12 in such a manner that the center of gravity of the ranging host 12 is located at the center of the sphere of the connection ball 13. In this case, the connecting ball 13 can be stably and fixedly placed on the adjusting base 14 and can freely change the angle, so that the range finder main body 12 follows the change, and the gravity center of the range finder main body 12 is consistent with the spherical center of the connecting ball 13, so that the range finder main body 12 can keep the coordinate origin unchanged during measurement.

In some examples, the connecting ball 13 may also be made of magnetically attractable metal oxide material or other magnetically attractable material.

In some examples, the ranging main machine 12 may be integrally formed with the connecting ball 13, and the center of the ranging main machine 12 is set to the center of the connecting ball 13 by an analog weight. In this case, the origin of the ranging coordinates of the ranging master 12 can be kept coincident with the center of sphere.

In some examples, the ranging host 12 and the connection ball 13 may be separately installed and connected by screw fastening. In this case, it is possible to facilitate the maintenance installation of the ranging main body 12 and the replacement of the connection ball 13.

In some examples, the connection ball 13 carrying the ranging host 12 may be a complete ball or an incomplete ball. For example, a complete sphere can ensure that the center of the sphere is on the sphere, so that the step of weighting the ranging host 12 can be reduced, and an incomplete sphere, such as a hemisphere, can be better installed on the ranging host 12.

In some examples, the adjustment base 14 of the ranging master 12 may be mounted directly on a dedicated tripod to facilitate measurements.

FIG. 3 is a schematic diagram of a test mainframe with a ranging device that adjusts the base in accordance with the present invention; fig. 4 is a side view of a test mainframe showing a ranging apparatus with an adjustment mount in accordance with the present invention.

As shown in fig. 3 and 4, in some examples, the ranging host 12 may emit ranging light and indicator light of the same optical path as the ranging light simultaneously by the ranging lens 122. Because the light emitted by the absolute distance module is invisible measuring light, the measuring light cannot be directly found by human eyes and cannot be directly aligned to the target ball to be measured by the human eyes in the process of aligning the measuring light to the target ball to be measured, the indicating light module emits visible indicating light which is collinear with the measuring light, and the indicating light can be aligned to the target ball to be measured when the target ball to be measured is aligned, namely the measuring light emitted by the absolute distance measuring module is considered to be aligned to the target ball to be measured, so that the aim of aligning the measuring light to the target ball is fulfilled.

In some examples, the ranging apparatus 1 may also include a target ball for assisting the measurement.

In some examples, the ranging device 1 may further include a signal display device 124 and a telescope 123 module. The signal display device 124 can be used to display the alignment condition of the measuring light and the target ball to be measured, the larger the value displayed by the signal display device 124, the better the alignment of the measuring light and the target ball to be measured, and the alignment of the measuring light and the target ball to be measured can be finely adjusted by the number on the signal display device 124, thereby improving the alignment accuracy. When the measured distance is long, the alignment of the measuring light with the target ball is not easily observed by human eyes, and therefore, the alignment needs to be observed by means of the sighting telescope 123. When the measured distance is long, human eyes cannot easily observe whether the measuring light is aligned with the target ball, and therefore, the alignment needs to be observed by the sighting telescope 123, thereby improving the alignment efficiency.

FIG. 6 is a schematic view showing an adjustment base of a distance measuring device having an adjustment base according to the present invention; fig. 7 is a sectional view showing an adjustment base of a distance measuring apparatus having the adjustment base according to the present invention.

As shown in fig. 6 and 7, in some examples, the adjustment base 14 may include a base 141 for carrying the connection ball 13, a rotation mechanism 143 rotatably surrounding the outside of the base 141, and a link mechanism 142 connecting the ranging host 12 and the rotation mechanism 143; the rotating mechanism 143 is configured to adjust the posture of the range-finding host 12 in cooperation with the connecting ball 13 so that the range-finding host 12 rotates in the first rotating direction.

In this case, the base 141 can support the distance measuring main unit 12 through the connecting ball 13 to ensure the stability of the distance measuring main unit 12 during measurement, the posture of the distance measuring main unit 12 can be changed to a corresponding pitch posture or to a first direction by adjusting the link mechanism 142, and the posture of the distance measuring main unit 12 can be changed to a corresponding horizontal posture or to a second direction by adjusting the rotating mechanism 143.

Fig. 10 is a schematic view showing a link mechanism of a distance measuring apparatus having an adjustment base according to the present invention.

As shown in fig. 7 and 10, in some examples, the link mechanism 142 includes a first connection part 1421, a second connection part 1422, a third connection part 1423, and a fourth connection part 1424 that are rotatably connected in sequence, the first connection part 1421 is connected to the distance measuring host 12, the fourth connection part 1424 is connected to the rotation mechanism 143, and the link mechanism 142 is configured to cooperate with the connection ball 13 to adjust the posture of the distance measuring host 12 so as to rotate the distance measuring host 12 in a second rotation direction, where the first rotation direction is different from the second rotation direction.

In this case, the link mechanism 142 may form a stable hinge structure with the base 141 and the range finder main unit 12 having the connection ball 13, the connection ball 13 corresponds to a ball hinge, the range finder main unit 12 in the hinge structure may change a pitch attitude or rotate in a first direction by a change of an adjustment angle of the link mechanism 142, and the first direction and the second direction are different from each other to provide two degrees of freedom of movement of the range finder main unit 12, thereby achieving an attitude adjustment of the range finder main unit 12.

In some examples, the linkage 142 may also be constructed with multiple connections. E.g., 5, 6, 7, etc. In this case, the flexibility when the host distance measuring machine 12 is rotated in the pitch direction or the first direction can be improved.

In some examples, the second connection part 1422 and the third connection part 1423 of the link mechanism 142 may have a rod shape, and the first connection part 1421 and the fourth connection part 1424 may have a concave block shape. In this case, the first connection part 1421, the second connection part 1422, the third connection part 1423, and the fourth connection part 1424 can be more fittingly connected.

In some examples, the linkage 142 may further include angle retainers (not shown) disposed on the second connecting portion 1422 and the third connecting portion 1423, which may include a second tightening screw 1425 disposed on the second connecting portion 1422, a third tightening screw 1426 disposed on the third connecting portion 1423, and a crescent-shaped guide 1427 connecting the second tightening screw 1425 and the third tightening screw 1426. In this case, the angle of the connection mechanism can be maintained by adjusting the angle fixing device, and the ranging accuracy is improved.

In some examples, the second connecting portion 1422 and the third connecting portion 1423 may be in the shape of a barb or a rod with a round hole at the end, and the barb or the round hole (not shown) may be connected with the shaft (not shown) or the first tightening screw 1402 to form a rotatable structure. In this case, the barb-shaped second connecting part 1422 and the barb-shaped third connecting part 1423 can facilitate the detachment of the distance measuring device 1, and the second connecting part 1422 and the third connecting part 1423 having the circular holes at the ends can form a stable rotatable structure to ensure the accuracy of the adjustment of the connecting mechanism.

In some examples, the first connection 1421 and the ranging host 12 may be fixedly connected; the first connection part 1421 and the second connection part 1422 may be connected by the first bearing 1401; the second connecting part 1422 and the third connecting part 1423 can be connected by a first tightening screw 1402; the third connecting portion 1423 and the fourth connecting portion 1424 may be connected by a second bearing 1403, and the fourth connecting portion 1424 and the rotating mechanism 143 may be fixedly connected.

In this case, after the first connection part 1421 of the link mechanism 142 is fastened by a screw, the ranging main unit 12, the connection ball 13, the link mechanism 142, the rotation mechanism 143, and the base 141 can form a mechanism similar to a four-bar mechanism on a plane, the link mechanism 142 has a power input, the connection ball 13 corresponds to a ball joint, and the ranging main unit 12 corresponds to a part of a rod in the four-bar mechanism, so that the change of the pitch attitude of the ranging angle of the ranging main unit 12 or the rotation in the first direction can be driven by only changing the link angle of the link mechanism 142 in the mechanism.

In some examples, the link mechanism 142 may be driven to rotate the distance measuring host 12 in the first rotation direction by adjusting an angle between the second connecting portion 1422 and the third connecting portion 1423, and the first tightening screw 1402 may be configured to fix the second connecting portion 1422 and the third connecting portion 1423 to maintain the angle between the second connecting portion 1422 and the third connecting portion 1423. In this case, when the first tightening screw 1402 is loosened, the link mechanism 142 can freely change the included angle between the second connecting portion 1422 and the third connecting portion 1423, and since the distance measuring host 12, the link mechanism 142, the base 141 and the connecting ball 13 are equivalent to a four-bar structure on a plane, when the included angle between the second connecting portion 1422 and the third connecting portion 1423 of the link mechanism 142 changes, the distance measuring host 12 also immediately changes the distance measuring posture on the same plane, that is, the direction of one degree of freedom rotates or the rotation in the first direction; when the first tightening screw 1402 is tightened, the second connecting portion 1422 and the third connecting portion 1423 of the link mechanism 142 can maintain an included angle at the tightening time, in other words, the ranging host 12 can maintain a stable posture after a certain posture is adjusted by the link mechanism 142.

In some examples, the first tensioning screw 1402 may have a mating nut. In this case, the second connection part 1422 and the third connection part 1423 can be more preferably fastened.

In other examples, the first connection 1421 may form the ranging master 12 and the fourth connection 1424 may form the rotation mechanism 143. In this case, errors due to screw fastening and the complexity of the mounting step can be reduced.

In other examples, the first connection part 1421 and the second connection part 1422 may be further connected by a pin, and the third connection part 1423 and the fourth connection part 1424 may be further connected by a pin.

Fig. 9 is a schematic view showing a base of a distance measuring apparatus having an adjustment base according to the present invention.

As shown in fig. 9, in some examples, the base 141 may include an upper end 1411 having a cylindrical shape, a lower end 1413 having a cylindrical shape, and an intermediate portion 1412 connecting the upper and lower ends 1411, 1413 and having a cylindrical shape, and the intermediate portion 1412 may have a diameter smaller than the diameters of the upper and lower ends 1411, 1413 and may be used to mount the rotation mechanism 143. In this case, the pillar-shaped base 141 can be easily adapted to the rotation mechanism 143 to be coupled thereto, and the rotation mechanism 143 is mounted to the middle portion 1412 of the base 141, so that a stable structure can be formed, thereby ensuring that the rotation mechanism 143 can rotate on the base 141 and omitting the step of mounting the support member.

In some examples, the upper end portion 1411 may be configured to carry the connecting ball 13, the upper end portion 1411 may have magnetism, and the upper end portion 1411 may further be provided with a stopper portion (not shown) to make the center of the connecting ball 13 coincide with the center of the base 141. In this case, the magnetic upper end portion 1411 is matched with the magnetically attractable connecting ball 13, so that the distance measuring host 12 can be kept stable during measurement, and the distance measuring accuracy is improved, and in addition, a limiting portion (not marked in the figure) of the upper end portion 1411 can enable the center of the connecting ball 13 to coincide with the axis of the base 141, so that the origin of the measurement coordinate is kept unchanged during measurement and posture adjustment of the distance measuring host 12 directly or indirectly, and the accuracy of measurement data is ensured.

In some examples, the retaining portion (not identified in the figures) of the upper end portion 1411 may be a recessed retaining groove or a raised retaining post that is capable of mating with the connecting ball 13. For example, more than three restraint posts may be equiangularly distributed and have an arc shape that matches the connecting ball 13.

In some examples, the upper end 1411 of the base 141 may not be cylindrical. For example, the upper end portion 1411 may be a square.

In some examples, the diameter of the upper end 1411 may also be smaller than the diameter of the intermediate portion 1412 and the lower end 1413. In other examples, the upper end 1411, the intermediate portion 1412, and the lower end 1413 may be integrally formed. In other examples, the upper end 1411, the intermediate portion 1412, and the lower end 1413 may also be removably mounted.

In some examples, the base 141 of the adjustment mount 14 of the ranging host 12 may be mounted directly on a dedicated tripod to facilitate measurements.

In some examples, the lower end 1413 may have a particular shape and fastening mechanism that can be used to mount to a dedicated triangular bracket.

FIG. 7 is a cross-sectional view showing an adjustment base of a distance measuring device having an adjustment base according to the present invention; fig. 8 is a schematic view showing a rotation mechanism of a distance measuring device having an adjustment base according to the present invention.

As shown in fig. 7, in some examples, the rotation mechanism 143 may include a first rotation part 1431, a second rotation part 1432, a third rotation part 1433, and a fourth rotation part 1434 rotatably surrounding the outside of the base 141; the first rotation portion 1431 may be arranged to be able to translate with respect to the second rotation portion 1432, and the second rotation portion 1432 may be arranged to be able to rotate with respect to the third rotation portion 1433 with respect to the axis of the base 141.

In this case, the rotation mechanism 143 is rotated by the input drive to drive the link mechanism 142 connected thereto to rotate around the base 141, and further, the distance measuring host 12 connected to the link mechanism 142 is also rotated around the base 141, that is, the second direction rotation or the second free direction change; the relative translation of the first rotating portion 1431 and the second rotating portion 1432 can reserve redundancy when the link mechanism 142 drives the range-finding host 12 to rotate in the first direction, and the relative rotation of the second rotating portion 1432 and the third rotating portion 1433 can reserve redundancy when the rotating mechanism 143 drives the link mechanism 142 and the range-finding host 12 to rotate in the second direction.

In some examples, first rotation portion 1431 and second rotation portion 1432 may be connected by one of a screw or a pin, and the screw hole or pin hole in which the screw or pin is installed may be an elongated counterbore or guide rail that matches the fixation orientation of the screw or pin.

In some examples, second rotation portion 1432 and third rotation portion 1433 may be connected by one of a screw or a pin, and a screw hole or a pin hole in which the screw or pin is installed may be a circular-arc shaped counter bore or guide rail that matches the screw or pin.

In some examples, the third rotation portion 1433 and the fourth rotation portion 1434 may be integrally formed. In other examples, the third and fourth rotation portions 1433, 1434 may be an integral body of a screw connection.

As shown in fig. 7 and 8, in some examples, the first rotation portion 1431 may include a first fine adjustment screw 1405 and a first return spring (not shown) for adjusting the first rotation portion 1431, and the first fine adjustment screw 1405 may be configured to push the first rotation portion 1431 to translate the first rotation portion 1431 and the second rotation portion 1432, so as to drive the link mechanism 142 to rotate the distance measuring host 12 in the first rotation direction; the first return spring (not shown) may be configured to restore a relative position between the first and second rotation parts 1431 and 1432.

In this case, the first fine adjustment screw 1405 and the first return spring (not shown) jointly adjust the translation of the first rotating portion 1431 and the second rotating portion 1432, so that the translation redundancy can be converted into fine adjustment to ensure the adjustment accuracy of the pitch attitude or the first direction of the range finder main unit 12, thereby improving the range finding accuracy of the range finder main unit 12.

In some examples, the screw of the first fine adjustment screw 1405 may be located at the first rotation portion 1431. In this case, the screw of the first fine adjustment screw 1405 directly acts on the first rotation portion 1431 to convert its stroke into a relative translation of the first rotation portion 1431 and the second rotation portion 1432.

In some examples, the screw of the first fine adjustment screw 1405 may be located at the second rotation portion 1432. In this case, the screw of the first fine adjustment screw 1405 directly acts on the second rotation portion 1432 to convert its stroke into a relative translation of the first rotation portion 1431 and the second rotation portion 1432.

In some examples, a translational slider may also be disposed between the first and second rotation portions 1431, 1432. In this case, the relative translation of the first and second rotation portions 1432 can be smoother. In other examples, the translatory slider may be a portion of the first rotation part 1431 that is not connected to the second rotation part 1432, in other words, the translatory slider may be an intermediate piece of a multi-piece member separated by the first rotation part 1431.

In some examples, a first return spring (not shown) may be integrally provided on the screw guide of the first and second rotation parts 1431 and 1432 opposite to the first fine adjustment screw 1405. In other examples, a first return spring end spring may be provided on the screws of the first and second rotation portions 1431 and 1432 opposite the first fine adjustment screw 1405.

In some examples, the third rotation portion 1433 may include a second fine adjustment screw 1406 and a second return spring 1408 for adjusting the second rotation portion 1432, and the second fine adjustment screw 1406 may be configured to push the second rotation portion 1432 to rotate the second rotation portion 1432 with respect to the third rotation portion 1433 by taking an axis of the base 141 as a rotation center, so as to drive the link mechanism 142 to rotate the distance measuring host 12 in the second rotation direction; the second return spring 1408 is configured to restore the rotation angle of the second rotation part 1432 with respect to the third rotation part 1433.

In this case, the second fine adjustment screw 1406 and the second return spring 1408 jointly adjust the relative rotation of the second rotating portion 1432 and the third rotating portion 1433, and the rotation redundancy can be converted into fine adjustment to ensure the horizontal posture of the host distance measuring device 12 or the adjustment accuracy of the second direction, thereby improving the distance measuring accuracy of the host distance measuring device 12.

In some examples, the first rotation portion 1431 may have a first protrusion (not shown), and the second fine adjustment screw 1406 and the second return spring 1408 may act together on the first protrusion (not shown) to move the first rotation portion 1431 with respect to the second rotation portion 1432 with the same axis. In this case, the second fine adjustment screw 1406 and the second return spring 1408 provided in the second rotation portion 1432 can reduce the influence on the coarse adjustment screw 1404 of the third rotation portion 1433, and the second fine adjustment screw 1406 and the second return spring 1408 act on a first protrusion (not shown) of the first rotation portion 1431, so that the stroke of the screw of the second fine adjustment screw 1406 can be converted into horizontal rotation of the first rotation portion 1431 and the horizontal rotation of the first rotation portion 1431 can be finely adjusted, thereby improving the accuracy of distance measurement.

In some examples, the second return spring 1408 and the second fine adjustment screw 1406 are oppositely disposed and act together on a first protrusion (not shown), which can translate the stroke of the screw of the second fine adjustment screw 1406 into relative rotation of the first rotary part 1431 and the second rotary part 1432.

In other examples, a first protrusion (not shown) may be provided on the second rotation part 1432, and the second return spring 1408 and the second fine adjustment screw 1406 may be provided on the first rotation part 1431. In this case, the second fine adjustment screw 1406 and the second return spring 1408 provided in the first rotation portion 1431 can reduce the influence on the coarse adjustment screw 1404 of the third rotation portion 1433, and the second fine adjustment screw 1406 and the second return spring 1408 act on a first protrusion (not shown) of the second rotation portion 1432, so that the stroke of the screw of the second fine adjustment screw 1406 can be converted into horizontal rotation of the first rotation portion 1431 and the horizontal rotation of the first rotation portion 1431 can be finely adjusted, thereby improving the accuracy of distance measurement.

In some examples, the fourth rotation portion 1434 may be configured to rotate the first rotation portion 1431, the second rotation portion 1432, and the third rotation portion 1433 around the axis of the base 141 as a rotation center, and the fourth rotation portion 1434 may have a plurality of coarse adjustment screws 1404 for fixing the fourth rotation portion 1434 and the base 141. In this case, the distance measuring device 12 can be roughly adjusted in rotation in the horizontal or second direction by loosening or tightening the plurality of rough adjustment screws 1404 on the fourth rotation part 1434 to maintain the rough adjustment state, and can be finely adjusted by the second fine adjustment screw 1406 and the second return spring 1408 to improve the distance measuring accuracy.

In some examples, the fourth rotation portion 1434 may be formed integrally with the third rotation portion 1433.

In some examples, the rotation mechanism 143 and the base 141 are connected by a third bearing 1409. In this case, the rotation of the rotation mechanism 143 can be smoother.

According to the invention, the distance measuring device with the adjusting base 14 can be provided, and compared with the traditional laser distance measuring device, the distance measuring device has the advantages of simple structure, unchanged distance measuring coordinate origin and good orthogonality.

While the invention has been described in detail in connection with the drawings and examples, it is to be understood that the above description is not intended to limit the invention in any way. Those skilled in the art can make modifications and variations to the present invention as needed without departing from the true spirit and scope of the invention, and such modifications and variations are within the scope of the invention.