阅读说明：本技术 一种道路工程测绘仪器 (Road engineering surveying instrument ) 是由 毛国栋 靳冬妹 张峰辉 魏春晖 王世松 李勇刚 孙艳荣 徐书欣 于琳 赵文月 甄 于 2021-08-13 设计创作，主要内容包括：本发明公开了一种道路工程测绘仪器,涉及测绘仪器相关技术领域,包括测绘仪,测绘仪的下端活动安装有承载板,承载板的内部和测绘仪的下端设置有用于固定测绘仪的限位机构和用于调节测绘仪高度的调节装置,且承载板远离测绘仪的轴向一端转动安装有伸缩连杆,限位机构包括支撑筒,承载板的上端均匀开设有若干个盛放槽,支撑筒的一端固定安装在盛放槽的内腔底部,测绘仪的下端均匀固定安装有若干个用于和支撑筒相互套接的限位筒。通过限位筒安装到支撑筒的外部之后,限位筒内部的卡块可以和限位块之间相互卡和,从而使得测绘仪和承载板之间进行固定,取代了现有的螺纹连接的方式,使得测绘仪和承载板之间进行安装的时候安装步骤更加简便。(The invention discloses a road engineering surveying instrument, which relates to the related technical field of surveying instruments and comprises a surveying instrument, wherein a bearing plate is movably arranged at the lower end of the surveying instrument, a limiting mechanism for fixing the surveying instrument and an adjusting device for adjusting the height of the surveying instrument are arranged in the bearing plate and at the lower end of the surveying instrument, a telescopic connecting rod is rotatably arranged at one end of the bearing plate, which is far away from the surveying instrument, in the axial direction, the limiting mechanism comprises a supporting cylinder, a plurality of containing grooves are uniformly formed in the upper end of the bearing plate, one end of the supporting cylinder is fixedly arranged at the bottom of an inner cavity of each containing groove, and a plurality of limiting cylinders which are mutually sleeved with the supporting cylinders are uniformly and fixedly arranged at the lower end of the surveying instrument. After installing the outside of a supporting cylinder through a spacing section of thick bamboo, the inside fixture block of a spacing section of thick bamboo can with the stopper between block each other block with to make and fix between surveying instrument and the loading board, replaced current threaded connection's mode, installation procedure is more simple and convenient when making to install between surveying instrument and the loading board.)

1. A road engineering surveying instrument, including surveying instrument (1), its characterized in that: a bearing plate (2) is movably mounted at the lower end of the surveying instrument (1), a limiting mechanism (3) for fixing the surveying instrument (1) and an adjusting device (4) for adjusting the height of the surveying instrument (1) are arranged in the bearing plate (2) and at the lower end of the surveying instrument (1), and a telescopic connecting rod (5) is rotatably mounted at one axial end, far away from the surveying instrument (1), of the bearing plate (2);

stop gear (3) are including supporting a section of thick bamboo (38), a plurality of has evenly been seted up to the upper end of loading board (2) and has held groove (33), the one end fixed mounting that supports a section of thick bamboo (38) holds the inner chamber bottom in groove (33), the even fixed mounting of lower extreme of surveying instrument (1) has a plurality of to be used for and supports a spacing section of thick bamboo (31) that a section of thick bamboo (38) cup jointed each other, the even fixed mounting in inner wall both sides of spacing section of thick bamboo (31) has fixture block (34), the outside both sides of supporting a section of thick bamboo (38) are rotated through the pivot and are installed stopper (36) that are used for with fixture block (34) mutual joint.

2. A road engineering surveying instrument according to claim 1, characterized in that: the utility model discloses a support section of thick bamboo, including a supporting cylinder (38), supporting plate (2), bearing board (33), groove (35) that the inner chamber is linked together are seted up and hold to the bilateral symmetry of a supporting cylinder (38), and outside both sides have bracing piece (39) through recess (35) grafting, the one end of bracing piece (39) extends to the inner chamber of a supporting cylinder (38) through square spout, and the axial inner wall fixed mounting of a supporting cylinder (38) has slide bar (310), the outside slidable mounting of slide bar (310) has and is used for carrying out spacing round platform shape slider (312) to stopper (36), bracing piece (39) extend to the one end of a supporting cylinder (38) inner chamber and one side fixed connection of round platform shape slider (312), the inner chamber upside fixed mounting of recess (35) has and is used for carrying out spacing magnet to bracing piece (39).

3. A road engineering surveying instrument according to claim 2, characterized in that: and a baffle plate (37) for supporting the limiting cylinder (31) is fixedly arranged outside the supporting cylinder (38).

4. A road engineering surveying instrument according to claim 2, characterized in that: the outer portion of the sliding rod (310) is fixedly provided with a first spring (311) used for supporting the truncated cone-shaped sliding block (312), and the other end of the first spring (311) is fixedly arranged in the middle of the lower end of the truncated cone-shaped sliding block (312).

5. A road engineering surveying instrument according to claim 2, characterized in that: the outside slidable mounting of loading board (2) has annular plate (32), bracing piece (39) extend to the outside one end of loading board (2) and the inner wall fixed connection of annular plate (32).

6. A road engineering surveying instrument according to claim 1, characterized in that: adjusting device (4) include gyro wheel (41) and drive belt (42), gyro wheel (41) rotate through the pivot and install in the inner chamber of telescopic connecting rod (5), drive belt (42) rotate and install the radial outer wall at gyro wheel (41), and one side fixed mounting of drive belt (42) has and is used for telescopic connecting rod (5) gliding L type bracing piece (410), the one end of L type bracing piece (410) and the radial inner wall fixed connection of telescopic connecting rod (5), the axial one end fixed mounting of pivot has transfer line (47), the through-hole has been seted up to radial one side of telescopic connecting rod (5), axial one end that the pivot was kept away from in transfer line (47) extends to the outside of telescopic connecting rod (5) through the through-hole.

7. A road engineering surveying instrument according to claim 6, characterized in that: the transmission rod (47) extends to the middle of the axial end outside the telescopic connecting rod (5) and is provided with a sliding groove, a supporting block (46) is slidably mounted in an inner cavity of the sliding groove, a shifting rod (43) is fixedly mounted at one axial end, close to the opening end of the sliding groove, of the supporting block (46), a stop lever (44) is slidably mounted on the radial inner wall of the sliding groove, one axial end of the stop lever (44) extends into the inner cavity of the through hole, and a round hole used for limiting the stop lever (44) is formed in the inner wall of the through hole.

8. A road engineering surveying instrument according to claim 7, characterized in that: the radial outer wall of driving lever (43) rotates and installs spacing dish (48), spacing dish (48) are close to the axial outer wall fixed mounting of supporting shoe (46) and are used for second spring (411) that resets driving lever (43), the axial outer wall that the spout was kept away from in driving lever (43) has seted up the standing groove, and radial one side fixed mounting has and is used for spacing slide (49) to driving lever (43).

9. A road engineering surveying instrument according to claim 7, characterized in that: and a third spring (45) for resetting the stop lever (44) is fixedly arranged in the transmission lever (47).

Technical Field

The invention relates to the technical field related to surveying and mapping instruments, in particular to a road engineering surveying and mapping instrument.

Background

Need use the mapping appearance to survey and draw the trend of road and the construction angle of road in present road construction, thereby it is more simple and convenient to make the highway when building, and the engineering mapping appearance needs to use the loading board to support the mapping appearance when using, and current mapping appearance and loading board all use the screw thread to connect when installing, thereby it is more loaded down with trivial details when leading to the mapping appearance to install between and the loading board, terminal surface pivoted bracing piece under the loading board simultaneously, the height of regulation self that needs to follow, thereby be suitable for different relief, make the mapping appearance remain parallel with ground all the time, but bracing piece between the current triangle all uses the bolt to carry out length adjustment, it is inconvenient when the bracing piece that leads to terminal surface under the loading board carries out length adjustment.

Disclosure of Invention

The present invention is directed to a road engineering surveying instrument, which solves the above problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a road engineering surveying instrument, includes the surveying instrument, the lower extreme movable mounting of surveying instrument has the loading board, and the inside of loading board and the lower extreme of surveying instrument are provided with the stop gear who is used for fixed surveying instrument and are used for adjusting the adjusting device of surveying instrument height, and the loading board is kept away from the axial one end rotation of surveying instrument and is installed telescopic connecting rod, and telescopic connecting rod can support the loading board to it places stable purpose to have reached the loading board.

Stop gear is including supporting a section of thick bamboo, a plurality of has evenly been seted up to the upper end of loading board and has been held the groove, the one end fixed mounting that supports a section of thick bamboo holds the inner chamber bottom in groove, the even fixed mounting of lower extreme of surveying instrument has a plurality of to be used for and supports a spacing section of thick bamboo that the section of thick bamboo cup jointed each other, the even fixed mounting in inner wall both sides of a spacing section of thick bamboo has the fixture block, the outside both sides of a support section of thick bamboo are rotated through the pivot and are installed the stopper that is used for with the mutual joint of fixture block, carry out the joint between fixture block and the stopper, can make a spacing section of thick bamboo place in the inner chamber that holds the groove, the stability of placing of self has been strengthened simultaneously.

In a further embodiment, square spout has been seted up to one side of a support section of thick bamboo, the bilateral symmetry of loading board sets up and holds the recess that the inslot cavity is linked together, and outside both sides are pegged graft through the recess and are had the bracing piece, the one end of bracing piece extends to the inner chamber of a support section of thick bamboo through square spout, the axial inner wall fixed mounting of a support section of thick bamboo has the slide bar, the outside slidable mounting of slide bar has and is used for carrying out spacing round platform shape slider to the stopper, the bracing piece extends to one side fixed connection of the one end of a support section of thick bamboo inner chamber and round platform shape slider, the inner chamber upside fixed mounting of recess has and is used for carrying out spacing magnet to the bracing piece, magnet can attract the terminal surface of bracing piece, thereby reached the spacing purpose to the bracing piece.

In further embodiment, the outside fixed mounting who supports a section of thick bamboo has the baffle that is used for carrying out the support to a spacing section of thick bamboo, the up end of baffle can with the stopper lower terminal surface between block mutually with to cause a support section of thick bamboo place more stably holding in the inner chamber that holds the groove.

In a further embodiment, a first spring used for supporting the truncated cone-shaped sliding block is fixedly installed on the outer portion of the sliding rod, the other end of the first spring is fixedly installed in the middle of the lower end of the truncated cone-shaped sliding block, and the first spring can store and release elastic potential energy of the first spring, so that the truncated cone-shaped sliding block is more convenient to reset.

In a further embodiment, the bearing plate is provided with an annular plate in a sliding manner on the outer portion, one end of the support rod extending to the outer portion of the bearing plate is fixedly connected with the inner wall of the annular plate, and the annular plate can enable the support rods to be linked with each other, so that the support rods can slide to be more convenient.

In a further embodiment, adjusting device includes gyro wheel and drive belt, the gyro wheel rotates through the pivot and installs in telescopic link's inner chamber, the drive belt rotates and installs the radial outer wall at the gyro wheel, and one side fixed mounting of drive belt has and is used for the gliding L type bracing piece of telescopic link, the one end of L type bracing piece and telescopic link's radial inner wall fixed connection, the axial one end fixed mounting of pivot has the transfer line, the through-hole has been seted up to telescopic link's radial one side, the axial one end that the pivot was kept away from to the transfer line extends to telescopic link's outside through the through-hole, can make one of them gyro wheel rotate when the transfer line rotates, thereby it is more simple and convenient when making the gyro wheel rotate.

In a further embodiment, a sliding groove is formed in the middle of one axial end, extending to the outside of the telescopic connecting rod, of the transmission rod, a supporting block is slidably mounted in an inner cavity of the sliding groove, a shifting rod is fixedly mounted at one axial end, close to the opening end of the sliding groove, of the supporting block, a blocking rod is slidably mounted on the radial inner wall of the sliding groove, one axial end of the blocking rod extends into the inner cavity of the through hole, a round hole used for limiting the blocking rod is formed in the inner wall of the through hole, one end of the blocking rod can slide into the inner cavity of the round hole, and therefore the purpose of limiting the transmission rod can be achieved.

In a further embodiment, a radial outer wall of the shifting rod is rotatably provided with a limiting disc, the axial outer wall of the limiting disc, which is close to the supporting block, is fixedly provided with a second spring for resetting the shifting rod, the axial outer wall of the shifting rod, which is far away from the sliding groove, is provided with a placing groove, a sliding plate for limiting the shifting rod is fixedly arranged on one radial side, and the sliding plate can fix the shifting rod after sliding and place the shifting rod to reset in an inner cavity of the sliding groove.

In a further embodiment, a third spring for resetting the stop lever is fixedly mounted inside the transmission rod, and the third spring can make the stop lever more convenient to reset.

Compared with the prior art, the invention has the beneficial effects that:

1. through setting up the stopper, can be so that after the outside of a supporting cylinder is installed to a spacing section of thick bamboo, the inside fixture block of a spacing section of thick bamboo can with the stopper between block each other block with to make fix between surveying instrument and the loading board, replaced current threaded connection's mode, installation step is more simple and convenient when making to install between surveying instrument and the loading board.

2. Through setting up gyro wheel and drive belt, can be so that the gyro wheel when rotating, the drive belt of outside rotation installation rotates to cause L type bracing piece to slide in telescopic connecting rod's inner chamber, cause telescopic connecting rod to extend or contract, thereby replaced current bolt adjustment's mode, it is more simple and convenient when causing telescopic connecting rod length to adjust.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a cross-sectional view of the carrier plate and annular plate of the present invention;

FIG. 3 is a cross-sectional view of the spacing mechanism of the present invention;

FIG. 4 is a cross-sectional view of a spacing barrel and cartridge of the present invention;

FIG. 5 is a cross-sectional view of the roller and belt of the present invention;

FIG. 6 is a cross-sectional view of the pantograph linkage and roller of the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 6 at A in accordance with the present invention;

fig. 8 is an enlarged view of the structure at B in fig. 1 according to the present invention.

In the figure: 1. a surveying instrument; 2. a carrier plate; 3. a limiting mechanism; 31. a limiting cylinder; 32. an annular plate; 33. a containing groove; 34. a clamping block; 35. a groove; 36. a limiting block; 37. a baffle plate; 38. a support cylinder; 39. a first support bar; 310. a slide bar; 311. a first spring; 312. a truncated cone shaped slider; 4. an adjustment device; 41. a roller; 42. a transmission belt; 43. a deflector rod; 44. a stop lever; 45. a third spring; 46. a support block; 47. a transmission rod; 48. a limiting disc; 49. a slide plate; 410. an L-shaped support bar; 411. a second spring; 5. a telescopic connecting rod.

Detailed Description

The embodiment of the application solves the problems in the prior art by providing a road engineering surveying and mapping instrument; the following will clearly and completely describe the technical solutions 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 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.

Example one

Referring to fig. 1-8, the present embodiment provides a road engineering surveying instrument, which includes a surveying instrument 1, wherein a bearing plate 2 is movably mounted at a lower end of the surveying instrument 1, and the bearing plate 2 can bear the surveying instrument 1, so that the surveying instrument 1 is more stable when surveying and mapping a road surface.

The inside of loading board 2 and surveying instrument 1's lower extreme are provided with stop gear 3 that is used for fixed surveying instrument 1 and is used for adjusting the adjusting device 4 of surveying instrument 1 height, and loading board 2 keeps away from the axial one end rotation of surveying instrument 1 and installs telescopic link 5, and wherein, telescopic link 5 rotates at the lower terminal surface of loading board 2 and installs threely, and three telescopic link 5 can keep the stability of loading board 2.

Further, loading board 2 can change the length of self through adjusting device 4 for every telescopic link 5 can change the length of self according to the condition on road surface, causes surveying instrument 1 to keep the state parallel relatively with the road surface all the time, makes surveying instrument 1 to the more accurate of road surface survey and drawing.

Stop gear 3 has evenly seted up a plurality of including a supporting cylinder 38, the upper end of loading board 2 and has held groove 33, and wherein, a plurality of holds groove 33 and can install surveying instrument 1 and inject the mounted position between surveying instrument 1 and the loading board 2 for surveying instrument 1 can not take place to rotate at the up end of loading board 2.

Support the one end fixed mounting of a section of thick bamboo 38 and hold the inner chamber bottom of groove 33, the even fixed mounting of lower extreme of surveying instrument 1 has a plurality of to be used for and supports a spacing section of thick bamboo 31 that 38 cup jointed each other, when surveying instrument 1 placed the up end of loading board 2, spacing section of thick bamboo 31 can slide to the inner chamber that holds groove 33, support a section of thick bamboo 38 simultaneously and can slide to the inner chamber of spacing section of thick bamboo 31 in, thereby loading board 2 can support surveying instrument 1, simultaneously support a section of thick bamboo 38 and hold the effect that holds groove 33 down and cause surveying instrument 1 can not take place to rotate at the up end of loading board 2, make surveying instrument 1 survey and drawing more accurate.

Even fixed mounting in inner wall both sides of a spacing section of thick bamboo 31 has fixture block 34, the outside both sides of a support section of thick bamboo 38 are rotated through the pivot and are installed the stopper 36 that is used for with the mutual joint of fixture block 34, after the inner chamber of holding groove 33 is placed to a spacing section of thick bamboo 31, fixture block 34 in the inner chamber of a spacing section of thick bamboo 31 can be with the mutual joint of lower extreme of stopper 36 to make a spacing section of thick bamboo 31 can be fixed in the inner chamber of holding groove 33, it is more convenient when making to install between surveying instrument 1 and the loading board 2.

A square sliding groove is formed in one side of the supporting cylinder 38, grooves 35 communicated with the inner cavity of the containing groove 33 are symmetrically formed in two sides of the bearing plate 2, the grooves 35 and the square sliding grooves are located on the same horizontal plane, first supporting rods 39 are inserted into the outer two sides of the bearing plate through the grooves 35, one ends of the first supporting rods 39 extend into the inner cavity of the supporting cylinder 38 through the square sliding grooves, and the first supporting rods 39 can slide up and down in the inner cavity of the supporting cylinder 38 through the grooves 35, so that the sliding of the first supporting rods 39 is facilitated.

The axial inner wall fixed mounting of a support section of thick bamboo 38 has the slide bar 310, the outside slidable mounting of slide bar 310 has and is used for carrying out spacing round platform shape slider 312 to stopper 36, wherein, round platform shape slider 312 can also set up for trapezoidal piece etc. and stopper 36 be slope form between the terminal surface that is close to each other can, slide bar 310 can play the guide effect to the slip of round platform shape slider 312, make round platform shape slider 312 only can slide from top to bottom in the inner chamber of a support section of thick bamboo 38, round platform shape slider 312 slides to the slope of round platform shape slider 312 terminal surface from top to bottom in the inner chamber of a support section of thick bamboo 38 can slowly reduce simultaneously, thereby lead to stopper 36 to rotate in the inner chamber of a support section of thick bamboo 38 through the pivot.

One end that first bracing piece 39 extends to a support cylinder 38 inner chamber and one side fixed connection of round platform shape slider 312, the inner chamber upside fixed mounting of recess 35 has and is used for carrying out spacing magnet to first bracing piece 39, magnet can attract first bracing piece 39, thereby make the up end of first bracing piece 39 straight and the inner chamber upside of recess 35 connect, spacing piece 36 can always be in the card with fixture block 34 under the effect of round platform shape slider 312 and the state of harmony, thereby make installing more firmly between surveying instrument 1 and loading board 2.

Furthermore, pressing the first supporting rod 39 can make the truncated cone-shaped sliding block 312 slide in the inner cavity of the supporting cylinder 38, so that the limiting block 36 and the clamping block 34 are separated, and the mounting and dismounting between the surveying instrument 1 and the bearing plate 2 are more convenient.

The baffle 37 used for supporting the limiting cylinder 31 is fixedly mounted outside the supporting cylinder 38, and the baffle 37 can support the limiting cylinder 31 sleeved outside the supporting cylinder 38, so that the lower end of the limiting cylinder 31 is prevented from contacting with the outside of the first supporting rod 39, and the first supporting rod 39 cannot slide in the inner cavity of the groove 35 under the action of gravity of the supporting cylinder 38.

The first spring 311 for supporting the truncated cone-shaped slider 312 is fixedly mounted outside the sliding rod 310, the other end of the first spring 311 is fixedly mounted in the middle of the lower end of the truncated cone-shaped slider 312, the first spring 311 can support the truncated cone-shaped slider 312 on one hand, and on the other hand, the first supporting rod 39 can reset after sliding is completed because the first spring 311 has the characteristics of storing and releasing elastic performance.

The annular plate 32 is installed on the outer portion of the bearing plate 2 in a sliding mode, one end, extending to the outer portion of the bearing plate 2, of the first supporting rod 39 is fixedly connected with the inner wall of the annular plate 32, the annular plate 32 enables the first supporting rods 39 located on two sides of the bearing plate 2 to be in linkage, and therefore the phenomenon that the first supporting rods 39 are offset and clamped when sliding is avoided, and the first supporting rods 39 are stable when sliding.

Example two

Referring to fig. 1-8, a further improvement is made on the basis of embodiment 1:

adjusting device 4 includes gyro wheel 41 and drive belt 42, gyro wheel 41 rotates through the pivot and installs in telescopic link 5's inner chamber, wherein, gyro wheel 41 rotates through the pivot in telescopic link 5's inner chamber and installs two, drive belt 42 rotates and installs the radial outer wall at gyro wheel 41, and one side fixed mounting of drive belt 42 has and is used for the gliding L type bracing piece 410 of telescopic link 5, the one end of L type bracing piece 410 and telescopic link 5's radial inner wall fixed connection, wherein, telescopic link 5 uses self middle part to extend to the direction of keeping away from loading board 2 as the mid point, gyro wheel 41 and drive belt 42 are all installed in the inner chamber of telescopic link 5 who rotates the connection with loading board 2 lower terminal surface simultaneously, and the one end of L type bracing piece 410 and telescopic link 5 can carry out flexible partial inner wall and connect.

Further, the drive belt 42 cup joints the outside of two gyro wheels 41, thereby when one of them gyro wheel 41 rotates, can drive another gyro wheel 41 through the drive belt 42 and rotate, cause two gyro wheels 41 to produce the linkage in telescopic connecting rod 5's inner chamber, L type bracing piece 410 just can drive telescopic connecting rod 5 slidable part in telescopic connecting rod 5's inner chamber and slide this moment, cause telescopic connecting rod 5 can extend or shrink, the mode of current bolt regulation has been replaced, it is more simple and convenient when making telescopic connecting rod 5 carry out length adjustment.

The axial one end fixed mounting of pivot has transfer line 47, and the through-hole has been seted up to the radial one side of telescopic link 5, and the axial one end that transfer line 47 kept away from the pivot extends to telescopic link 5's outside through the through-hole. The through hole makes the transfer line 47 extend to the outside of telescopic link 5, and transfer line 47 can also rotate at telescopic link 5's outside through the through hole simultaneously to drive one of them gyro wheel 41 and rotate, it is more convenient when making gyro wheel 41 rotate.

The middle of one axial end of the transmission rod 47 extending to the outside of the telescopic connecting rod 5 is provided with a sliding groove, and the inner cavity of the sliding groove is provided with a supporting block 46 in a sliding manner, wherein the supporting block 46 can be a truncated cone or a trapezoidal object with a slope-shaped end face, and the sliding track of the supporting block 46 can be limited by the sliding groove, so that the supporting block 46 can slide more stably.

The driving lever 43 is fixedly mounted at one axial end of the supporting block 46 close to the opening end of the sliding groove, wherein the other axial end of the driving lever 43 extends to the outside of the transmission rod 47 through the sliding groove, so that when the driving lever 43 is pulled, the supporting block 46 can slide in the inner cavity of the sliding groove, and the supporting block 46 can slide more conveniently.

The radial inner wall slidable mounting of spout has pin 44, and the axial one end of pin 44 extends to in the inner chamber of through-hole, and the inner wall of through-hole is seted up and is used for spacing round hole to pin 44, and wherein, the axial one end of pin 44 extends to in the inner chamber of through-hole one end extends to in the inner chamber of spout.

Further, pulling driving lever 43 for supporting shoe 46 slides in the inner chamber of spout, when supporting shoe 46 slides, supporting shoe 46's terminal surface can contact with the terminal surface of pin 44 each other, thereby along with supporting shoe 46's continuous slip, cause supporting shoe 46 to slide to the inner chamber of round hole, thereby make pin 44 can carry on spacingly to the transfer line 47 that the rotation was accomplished, cause transfer line 47 can not rotate once more, can prescribe a limit to the gyro wheel 41 that the rotation was accomplished, cause telescopic link 5 to slide and can fix after accomplishing.

The radial outer wall of driving lever 43 rotates and installs spacing dish 48, spacing dish 48 is close to the axial outer wall fixed mounting of supporting shoe 46 and is used for the second spring 411 that resets to driving lever 43, second spring 411 can extend when driving lever 43 slides, thereby more save self elastic potential energy, second spring 411 can release self elastic potential energy after the pulling force that driving lever 43 received disappears, thereby make gliding driving lever 43 reset, spacing dish 48 can make driving lever 43 slide while rotating for second spring 411 simultaneously.

The axial outer wall that driving lever 43 kept away from the spout has seted up the standing groove, and radial one side fixed mounting has and is used for spacing slide 49 to driving lever 43, the home position of slide 49 is placed in the inner chamber of standing groove, when pin 44 needs carry out position limit to drive lever 47, pulling driving lever 43, cause the one end of pin 44 to slide to the inner chamber of round hole, simultaneously after slide 49 slides to the outside of drive lever 47, rotate driving lever 43, cause the terminal surface of slide 49 and the outside of drive lever 47 to contact each other, the one end of pin 44 can slide to the inner chamber of round hole under the effect of supporting shoe 46 to carry out spacing to drive lever 47 this moment.

The inside fixed mounting of transfer line 47 has the third spring 45 that is used for reseing the pin 44, when the terminal surface of supporting shoe 46 and the terminal surface of pin 44 contacted each other, third spring 45 can be compressed, then save self elastic potential energy, after the terminal surface of supporting shoe 46 and the terminal surface of pin 44 break away from the contact, third spring 45 can release self elastic potential energy, in the inner chamber of the one end slip department round hole that causes pin 44, thereby it is more convenient when making pin 44 reseed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.