阅读说明：本技术 公路施工用的路面测平装置 (Road surface leveling device for highway construction ) 是由 赵圣武 李小利 李新 谢思聪 于艺林 徐显攀 李桐 王启乾 张艳鹏 卢艳斌 李锁 于 2021-07-23 设计创作，主要内容包括：本发明公开了一种公路施工用的路面测平装置,包括柱形支撑座、激光投影板、参照杆体和微调机构,柱形支撑座的顶部设置有行走机构,行走装置包括至少三个支撑杆以及设置在支撑杆底部的支撑脚,支撑杆能够收藏至柱形支撑座的容纳腔的内部；参照杆体的顶部设置有液体水平仪以及与激光发射部,柱形支撑座的内部设置有供参照杆体上下运动的运动通道,微调组件设置在参照杆体与柱形支撑座之间,参照杆体沿运动通道抽出具有滑动调节行程以及转动微调行程,在转动微调行程中,参照杆体接收微调组件的驱动以实现上下微调。本发明提供的路面测平装置,能够准确的进行调节,使得激光发射部和激光投影参照板相对应,提升检测效率,且便于在不使用时携带。(The invention discloses a road surface leveling device for highway construction, which comprises a cylindrical supporting seat, a laser projection plate, a reference rod body and a fine adjustment mechanism, wherein a travelling mechanism is arranged at the top of the cylindrical supporting seat; the top of referring to the body of rod is provided with liquid level meter and with laser emission portion, the inside of cylindricality supporting seat is provided with the motion passageway that supplies to refer to the body of rod up-and-down motion, and the fine setting subassembly sets up between referring to the body of rod and cylindricality supporting seat, and the reference body of rod is taken out along the motion passageway and is had the slide adjusting stroke and rotate the fine setting stroke, and in rotating the fine setting stroke, the drive of referring to the body of rod receipt fine setting subassembly is in order to realize fine setting from top to bottom. The pavement leveling device provided by the invention can be accurately adjusted, so that the laser emitting part corresponds to the laser projection reference plate, the detection efficiency is improved, and the pavement leveling device is convenient to carry when not used.)

1. A road surface leveling device for highway construction comprises a cylindrical supporting seat and a laser projection plate, wherein a travelling mechanism is arranged at the top of the cylindrical supporting seat;

still include according to the body of rod and fine setting mechanism, the top of referring to the body of rod be provided with liquid level meter and with the corresponding laser emission portion of laser projection board, the inside of cylindricality supporting seat is provided with the confession refer to the motion passageway of body of rod up-and-down motion, the fine setting subassembly sets up refer to the body of rod with between the cylindricality supporting seat, refer to the body of rod edge the motion passageway is taken out and is had the slip regulation stroke and rotate the fine setting stroke in rotating the fine setting stroke, receive with reference to the body of rod the drive of fine setting subassembly is in order to realize fine setting from top to bottom.

2. The device of claim 1, wherein the receiving cavity comprises an annular cavity, an opening of the annular cavity is located at the bottom of the cylindrical support seat, and a length of the annular cavity is smaller than a length of the cylindrical support seat.

3. The device of claim 2, wherein the moving channel is disposed at a center of the cylindrical support seat, the annular cavities are disposed around the moving channel and are not communicated with each other, and the opening of the moving channel is located at the top of the cylindrical support seat.

4. The device of claim 1, wherein the walking means comprises an annular moving plate slidably connected in the receiving cavity, and an angle adjusting assembly is disposed between the annular moving plate and the supporting rod.

5. The device for leveling road surface according to claim 4, wherein a fixing sleeve is rotatably sleeved on the bottom of the cylindrical supporting seat, a fixing member is disposed on the fixing sleeve, and fixing portions corresponding to the fixing member are disposed on the annular moving disc and the supporting rod.

6. The pavement leveling device according to claim 1, wherein a fixed seat is provided on a top of the cylindrical support seat, an open cavity capable of accommodating the liquid level gauge and the laser emitting portion is provided on the fixed seat, the fine adjustment mechanism is provided in the fixed seat, and a connection channel communicated with the movement channel is provided on the fixed seat.

7. The road surface leveling device according to claim 1, wherein a reference scale mark is provided on one side surface of the reference rod body, sliding portions are provided on both side walls of the reference rod body, and a restriction groove for allowing the sliding portions to move is provided in the movement passage.

8. The device of claim 6, wherein the fine adjustment mechanism comprises a driving member and a rotating member, the rotating member is connected with the reference rod, and the driving member and the rotating member have a connection state and a separation state, wherein the connection state and the separation state are mutually connected and separated.

9. The pavement leveling device according to claim 8, wherein the rotating member includes a transmission gear, the transmission gear is connected to the mounting cavity in the fixing base through a rotating shaft, a rack is provided on one side of the reference rod body, and the rack is engaged with the transmission gear.

10. The device for leveling road surface according to claim 9, wherein the driving member includes a driving shaft and a driving unit, the driving unit is located outside the fixing base, the driving shaft is slidably connected in the sliding channel of the fixing base, a connecting sleeve is provided at an end of the driving shaft away from the driving unit, a connecting ring is provided at an end of the rotating shaft, and the driving shaft reciprocates along the sliding channel to enable the connecting sleeve and the connecting ring to be connected in a mutually sleeved manner or separated from each other.

Technical Field

The invention relates to the technical field of highway construction, in particular to a pavement leveling device for highway construction.

Background

With the high-level open-to-the-outside pattern built by the state, the opportunity and potential of cooperation are deeply excavated, the trade signing and updating of multi-bilateral free trade cooperation agreement and investment protection agreement are promoted, the improvement of external investment management of enterprises is actively promoted, the public service is continuously perfected and innovated, the guidance for risk prevention and compliance operation of the enterprises is enhanced, the external legal rights and interests of the enterprises are actively maintained, and a good external environment is created for the 'going-out' of the enterprises in China. The landforms of foreign countries are different, roads are tortuous, the altitude is different, and the requirements for enterprises in the highway construction process are different.

Highway construction refers to the reconnaissance of highway structure thing, measure, design, construction, maintenance, work such as management, and whether the level after the road construction accords with relevant technical indicator need be examined to the road levelling instrument among the highway construction's the in-process, its wide application is in the aspect of the construction, and current road construction is with road levelling instrument operation complicacy, inconvenient staff adjusts, need adjust many times repeatedly just can detect, influence the staff and carry out measurement work, and when not using, inconvenient staff carries the removal, influence the efficiency of work.

Disclosure of Invention

The invention aims to provide a road surface leveling device for highway construction, which is used for solving the defects in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme:

a road surface leveling device for highway construction comprises a cylindrical supporting seat and a laser projection plate, wherein a travelling mechanism is arranged at the top of the cylindrical supporting seat, a containing cavity is formed in the cylindrical supporting seat, the travelling mechanism comprises at least three supporting rods and supporting legs arranged at the bottoms of the supporting rods, and the supporting rods can be collected into the containing cavity;

still include according to the body of rod and fine setting mechanism, the top of referring to the body of rod be provided with liquid level meter and with the corresponding laser emission portion of laser projection board, the inside of cylindricality supporting seat is provided with the confession refer to the motion passageway of body of rod up-and-down motion, the fine setting subassembly sets up refer to the body of rod with between the cylindricality supporting seat, refer to the body of rod edge the motion passageway is taken out and is had the slip regulation stroke and rotate the fine setting stroke in rotating the fine setting stroke, receive with reference to the body of rod the drive of fine setting subassembly is in order to realize fine setting from top to bottom.

In the above road surface leveling device, the accommodating cavity includes an annular cavity, an opening of the annular cavity is located at the bottom of the cylindrical supporting seat, and the length of the annular cavity is smaller than that of the cylindrical supporting seat.

In the pavement leveling device, the movement channel is arranged at the center of the cylindrical support seat, the annular cavity surrounds the movement channel and is not communicated with the movement channel, and the opening of the movement channel is positioned at the top of the cylindrical support seat.

The walking device of the pavement leveling device comprises an annular motion disc which is connected in the accommodating cavity in a sliding mode, and an angle adjusting assembly is arranged between the annular motion disc and the supporting rod.

In the pavement leveling device, the bottom of the cylindrical supporting seat is rotatably sleeved with the fixed sleeve, the fixed sleeve is provided with the fixing part, and the annular moving disc and the supporting rod are provided with the fixing parts corresponding to the fixing part.

The top of the cylindrical supporting seat of the pavement leveling device is provided with a fixed seat, the fixed seat is provided with an open cavity capable of accommodating the liquid level meter and the laser emitting part, the fine adjustment mechanism is arranged in the fixed seat, and the fixed seat is provided with a connecting channel communicated with the moving channel.

According to the pavement leveling device, one side face of the reference rod body is provided with reference scale marks, two side walls of the reference rod body are provided with sliding parts, and a limiting groove for the sliding parts to move is formed in the moving channel.

The fine adjustment mechanism of the pavement leveling device comprises a driving part and a rotating part, the rotating part is correspondingly connected with the reference rod body, and the driving part and the rotating part are connected in an interconnected mode and separated in an mutually separated mode.

The rotating part of the pavement leveling device comprises a transmission gear, the transmission gear is connected to the mounting cavity in the fixing seat through a rotating shaft, a rack is arranged on one side of the reference rod body, and the rack is meshed with the transmission gear.

Foretell road surface levelling device the driving piece includes drive shaft and drive unit, drive unit is located the outside of fixing base, drive shaft sliding connection is in the sliding channel of fixing base, the drive shaft is kept away from drive unit's one end is provided with the adapter sleeve, the one end of axis of rotation is provided with the go-between, the drive shaft is followed sliding channel reciprocating motion is so that the adapter sleeve with can registrate each other between the go-between and connect or mutual separation.

In the technical scheme, the road surface leveling device for highway construction provided by the invention has the following beneficial effects:

the invention provides a road surface leveling device for highway construction, which comprises a cylindrical supporting seat, a laser projection plate, a reference rod body and a fine adjustment mechanism, wherein the top of the cylindrical supporting seat is provided with a travelling mechanism, the inside of the cylindrical supporting seat is provided with a containing cavity capable of containing the travelling mechanism, the top of the reference rod body is provided with a liquid level gauge and a laser emitting part corresponding to the laser projection plate, the inside of the cylindrical supporting seat is provided with a moving channel for the reference rod body to move up and down, therefore, the walking mechanism and the reference rod body can be collected in the cylindrical supporting seat through the moving channel and the containing cavity, and the walking mechanism and the reference rod body are convenient to carry and move when not in use, meanwhile, the fine adjustment component is arranged between the reference rod body and the cylindrical support seat, the height of the reference rod body can be finely adjusted through the fine adjustment mechanism, the laser emitting part can accurately correspond to the laser projection plate, and therefore the measuring efficiency of workers is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic structural view of a road surface leveling device for road construction according to an embodiment of the present invention in a use state;

fig. 2 is a schematic structural view of a road surface leveling device for road construction according to an embodiment of the present invention in a non-use state;

FIG. 3 is a schematic structural diagram of a receiving chamber according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a laser projection plate according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fine adjustment mechanism according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an annular motion disk according to an embodiment of the present invention.

Description of reference numerals:

1. a cylindrical support seat;

1.1, an accommodating cavity; 1.2, a movement channel; 1.3, fixing a sleeve; 1.4, fixing parts; 1.5, fixing seats;

2. a laser projection plate;

2.1, a projection plate body; 2.2, a telescopic rod; 2.3, a base;

3. a traveling mechanism;

3.1, supporting rods; 3.2, supporting the feet; 3.3, an annular motion disc; 3.4, an angle adjusting component; 3.5, a fixed part;

4. a reference stick body;

4.1, referring to the scale marks; 4.2, a sliding part; 4.3, a rack;

5. a fine adjustment mechanism;

5.1, a transmission gear; 5.2, a rotating shaft; 5.3, connecting rings; 5.4, a driving unit; 5.5, a driving shaft; 5.6, connecting sleeves;

6. a liquid level meter;

7. a laser emitting section.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1-6, the invention provides a road surface leveling device for highway construction, which comprises a cylindrical supporting seat 1 and a laser projection plate 2, wherein a traveling mechanism 3 is arranged at the top of the cylindrical supporting seat 1, an accommodating cavity 1.1 is arranged in the cylindrical supporting seat 1, the traveling device comprises at least three supporting rods 3.1 and supporting legs 3.2 arranged at the bottoms of the supporting rods 3.1, and the supporting rods 3.1 can be collected into the accommodating cavity 1.1; still including referring to the body of rod 4 and fine-tuning 5, the top of referring to the body of rod 4 is provided with liquid level meter 6 and with the laser emission portion 7 that laser projection board 2 is corresponding, the inside of cylindricality supporting seat 1 is provided with the motion passageway 1.2 that supplies to refer to the up-and-down motion of the body of rod 4, the fine setting subassembly sets up between referring to the body of rod 4 and cylindricality supporting seat 1, it has the slip adjustment stroke and rotates the fine setting stroke to refer to the body of rod 4 along motion passageway 1.2 motion, in rotating the fine setting stroke, the drive of referring to the body of rod 4 receipt fine setting subassembly is in order to realize fine setting from top to bottom.

Specifically, the cylindrical support seat 1 may be a rod body, the accommodating cavity 1.1 is arranged inside the cylindrical support seat 1, the accommodating cavity 1.1 may be an annular cavity arranged along the axial direction of the cylindrical support seat 1, or may be a plurality of cylindrical cavities, the traveling mechanism 3 includes at least three or a plurality of support rods 3.1, the support rods 3.1 can be stored in the accommodating cavity 1.1 or can be drawn out from the accommodating cavity 1.1 for expansion, when in use, each support rod 3.1 is drawn out from the accommodating cavity 1.1 for expansion and fixation, so that each support rod 3.1 forms a bracket for supporting the cylindrical support seat 1, when not in use, each support rod 3.1 is stored inside the accommodating cavity 1.1, thereby facilitating carrying and carrying, the support feet 3.2 are arranged at the bottom of the support rod 3.1, the support feet 3.2 may be arc-shaped support plates, the contact surface between the support rods 3.1 and the ground is increased through the support feet 3.2, thereby promote supporting legs 3.2's stability, can also be provided with wheel components in supporting legs 3.2's bottom, wheel components can roll on the road surface, so be convenient for remove cylindricality supporting seat 1, after removing to suitable position, can lock wheel components to avoid wheel components to slide by oneself.

In this embodiment, the reference rod 4 is a rod with a rectangular or square radial cross section, the liquid level meter 6 and the laser emitting portion 7 can be fixedly connected to the top of the reference rod 4 through the connecting seat, the liquid level meter 6 can detect the flatness of the left and right sides of the road surface, the laser emitting portion 7 can emit laser, the laser projecting plate 2 receives the projection of the laser, the laser projecting plate 2 includes a base 2.3, a projecting plate body 2.1 and a telescopic rod 2.2 arranged between the base 2.3 and the projecting plate body 2.1, the telescopic rod 2.2 can adjust the height of the projecting plate body 2.1, the telescopic rod 2.2 can be composed of two or more rod bodies which are mutually sleeved, the telescopic rod 2.2 is provided with identification scales, the height of the projecting plate body 2.1 can be known through the identification scales, thus, after the laser emitted by the laser emitting portion 7 irradiates on the projecting plate body 2.1, thereby the roughness on road surface is judged to the height of laser emission portion 7 and projection plate body 2.1 contrast, and laser emission portion 7 and liquid level meter 6 are the common structure among the prior art, no longer give consideration to here and give unnecessary details.

In the embodiment, a movement channel 1.2 is arranged in the cylindrical support seat 1, the reference rod 4 can move up and down along the movement channel 1.2, when in use, the reference rod 4 moves up along the movement channel 1.2 so as to draw out the reference rod 4, the liquid level meter 6 and the laser emitting part 7 from the movement channel 1.2 for detection, after the use is finished, the reference rod 4 can move down along the movement channel 1.2 for collection, when the reference rod 4 is drawn out from the movement channel 1.2, the height of the reference rod 4 needs to be accurately adjusted, namely, the laser emitted by the laser emitting part 7 can irradiate a reference point on the projection plate body 2.1, so that the comparison is carried out according to the height of the laser projection plate 2 and the height of the reference rod 4, the flatness of the road surface is judged, when the reference rod 4 moves up, the two movement strokes are included, namely, the sliding adjustment stroke and the rotation fine adjustment stroke, the sliding adjustment stroke is to draw out the reference rod body 4 from the movement channel 1.2, so that the height of the laser emission part 7 is approximately consistent with the height of the laser projection plate 2, the height of the laser emission part 7 can be adjusted according to the height of the projection plate body 2.1 in the process, then the laser emission part 7 is opened, the height of the reference rod body 4 is finely adjusted through the fine adjustment mechanism 5, and the laser emitted by the laser emission part 7 is received by the laser projection plate 2, so that the flatness of the road surface is judged. It should be noted that, during the sliding adjustment stroke, the reference rod 4 is not connected to the fine adjustment mechanism 5, and after the sliding adjustment stroke is completed, the fine adjustment mechanism 5 is connected to the reference rod 4 through manual adjustment. Meanwhile, a locking mechanism can be arranged between the reference rod body 4 and the cylindrical support seat 1, and the reference rod body 4 can be fixed through the locking mechanism.

The invention provides a road surface leveling device for road construction, which comprises a cylindrical support seat 1, a laser projection plate 2, a reference rod body 4 and a fine adjustment mechanism 5, wherein the top of the cylindrical support seat 1 is provided with a traveling mechanism 3, a containing cavity 1.1 capable of containing the traveling mechanism 3 is arranged in the cylindrical support seat 1, the top of the reference rod body 4 is provided with a liquid level meter 6 and a laser emitting part 7 corresponding to the laser projection plate 2, the inside of the cylindrical support seat 1 is provided with a movement channel 1.2 for the reference rod body 4 to move up and down, so that the traveling mechanism 3 and the reference rod body 4 can be contained in the cylindrical support seat 1 through the movement channel 1.2 and the containing cavity 1.1, the road surface leveling device is convenient to carry and move when not in use, meanwhile, a fine adjustment component is arranged between the reference rod body 4 and the cylindrical support seat 1, the height of the reference rod body 4 can be finely adjusted through the fine adjustment mechanism 5, the laser emitting part 7 can accurately correspond to the laser projection plate 2, and therefore the measuring efficiency of workers is improved.

In this embodiment, preferably, the accommodating cavity 1.1 includes an annular cavity, an opening of the annular cavity is located at the bottom of the cylindrical support seat 1, and the length of the annular cavity is smaller than that of the cylindrical support seat 1; the annular cavity is used for storing the supporting rod 3.1 when not in use, the annular cavity is arranged along the axial direction of the cylindrical supporting seat 1, the supporting rod 3.1 can be stored in the annular cavity when not in use, and the supporting rod 3.1 can be drawn out from the annular cavity when in use.

In this embodiment, preferably, the moving channel 1.2 is disposed at the center of the cylindrical support seat 1, the annular cavities are disposed around the moving channel 1.2 and are not communicated with each other, and the opening of the moving channel 1.2 is located at the top of the cylindrical support seat 1; the motion channel 1.2 sets up along the axis direction of cylindricality supporting seat 1, refers to the body of rod 4 and can follow motion channel 1.2 up-and-down motion.

In this embodiment, preferably, the walking device includes an annular motion disc 3.3 which is slidably connected in the accommodating cavity 1.1, and an angle adjusting assembly 3.4 is arranged between the annular motion disc 3.3 and the supporting rod 3.1; annular motion dish 3.3 can be along holding chamber 1.1 up-and-down motion, the top of each bracing piece 3.1 all is connected with annular motion dish 3.3 through angle adjusting part 3.4, angle adjusting part 3.4 can make bracing piece 3.1's support angle can be adjusted, for example three bracing piece 3.1 can form a triangular support frame, angle adjusting part 3.4 is including rotating piece and setting element, bracing piece 3.1 is connected in annular motion dish 3.3's bottom through rotating the piece, after bracing piece 3.1 rotates to suitable angle, can be fixed bracing piece 3.1 through the setting element, it can rotate the seat to rotate the piece, axis of rotation 5.2 or other structures, the setting element can be the locating pin, the holding ring.

In this embodiment, preferably, the bottom of the cylindrical support seat 1 is rotatably sleeved with a fixed sleeve 1.3, the fixed sleeve 1.3 is provided with a fixing member 1.4, and the annular moving disc 3.3 and the support rod 3.1 are both provided with a fixing portion 3.5 corresponding to the fixing member 1.4; the fixed sleeve 1.3 is rotatably connected with the cylindrical supporting seat 1 through a thread mode, the fixing piece 1.4 can be a fixing rod, a fixing pin and the like arranged on the fixed sleeve 1.3, the fixing part 3.5 can be a fixing hole or a fixing groove arranged on the side wall of the annular moving disc 3.3 and the supporting rod 3.1, the fixing piece 1.4 is embedded into the fixing part 3.5, the annular moving disc 3.3 or the supporting rod 3.1 can be fixed, in the using process, the supporting rod 3.1 is drawn out from the accommodating cavity 1.1, then the fixing piece 1.4 and the fixing part 3.5 are used for fixing the annular moving disc 3.3, when the supporting rod 3.1 is not used and is collected into the accommodating cavity 1.1, the fixing piece 1.1 is used for fixing the supporting rod 3.1 through the fixing piece 1.4 and the fixing part 3.5, and the use and carrying are convenient.

In this embodiment, preferably, the top of the cylindrical supporting seat 1 is provided with a fixed seat 1.5, the fixed seat 1.5 is provided with an open cavity capable of accommodating the laser emitting part 7, the size of the open cavity is consistent with that of the laser emitting part 7, when the laser emitting part is not used, the laser emitting part 7 can be collected in the open cavity, the open cavity can be further provided with a sealing plate capable of being opened or closed, so that the laser emitting part 7 can be closed through the sealing plate after being collected in the open cavity, the fine adjustment mechanism 5 is arranged in the fixed seat 1.5, and the fixed seat 1.5 is provided with a connecting channel communicated with the movement channel 1.2; the connecting channel is arranged coaxially with the movement channel 1.2, the connecting channel and the movement channel 1.2 forming a channel for movement of the reference rod body 4.

In this embodiment, preferably, a reference scale mark 4.1 is disposed on one side surface of the reference rod body 4, the height of the reference rod body 4 can be measured by referring to the scale mark 4.1, so that the height of the laser emitting portion 7 can be substantially known, a scale aligning portion corresponding to the reference scale mark 4.1 is disposed on the fixing base 1.5, the height between the laser emitting portion 7 and the fixing base 1.5 can be known by the scale aligning portion, the height between the fixing base 1.5 and the ground can be manually measured, or can be measured and calculated according to the inclination angle of the supporting rod 3.1, sliding portions 4.2 are disposed on two side walls of the reference rod body 4, and a limiting groove for the sliding portions 4.2 to move is disposed in the moving channel 1.2; through slider 4.2 and restriction groove, so restrict the motion process of reference body of rod 4, avoid reference body of rod 4 to take place the skew.

In this embodiment, it is preferable that the fine adjustment mechanism 5 includes a driving member and a rotating member, the rotating member is correspondingly connected to the reference rod 4, and the driving member and the rotating member have a connection state where they are connected to each other and a separation state where they are separated from each other; in the slide adjusting stroke of referring to the body of rod 4, the driving piece with rotate between the piece alternate segregation, refer to the 4 motion of the body of rod this moment and can drive a rotation piece and rotate, in rotating the fine setting stroke, interconnect between driving piece and the rotation piece, refer to the unable automatic up-and-down motion along motion channel 1.2 of the body of rod 4 this moment, thereby only can drive the rotation piece through the driving piece and make and follow motion channel 1.2 up-and-down motion according to the body of rod 4.

In this embodiment, preferably, the rotating member includes a transmission gear 5.1, the transmission gear 5.1 is connected to the mounting cavity in the fixing seat 1.5 through a rotating shaft 5.2, a rack 4.3 is arranged on one side of the reference rod body 4, and the rack 4.3 is meshed with the transmission gear 5.1; the driving part comprises a driving shaft 5.5 and a driving unit 5.4, the driving unit 5.4 is positioned at the outer side of the fixed seat 1.5, the driving unit 5.4 can be a driving motor or a manual driving disk, the driving shaft 5.5 is connected in a sliding channel of the fixed seat 1.5 in a sliding manner, one end of the driving shaft 5.5, which is far away from the driving disk, is provided with a connecting sleeve 5.6, one end of a rotating shaft 5.2 is provided with a connecting ring 5.3, and the driving shaft 5.5 reciprocates along the sliding channel so that the connecting sleeve 5.6 and the connecting ring 5.3 can be mutually sleeved and connected or mutually separated; after the sliding adjustment stroke of the reference rod body 4 is finished, the driving shaft 5.5 can be manually pressed, so that the driving shaft 5.5 moves along the sliding channel to realize the mutual connection between the connecting sleeve 5.6 and the connecting ring 5.3, and after the use is finished, the driving shaft 5.5 can be manually pulled to separate the connecting sleeve 5.6 and the connecting ring 5.3 from each other.

In this embodiment, preferably, the outer side wall of the connection ring 5.3 is provided with an axial serration portion, the inside of the connection sleeve 5.6 is provided with an axial serration groove corresponding to the axial serration portion, and the axial serration portion and the axial serration groove enable the connection sleeve 5.6 and the connection ring 5.3 to be locked with each other, thereby effectively preventing the connection sleeve 5.6 and the connection ring 5.3 from rotating with each other.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.