CN212871248U

CN212871248U - Straight-moving type distance measuring wheel

Info

Publication number: CN212871248U
Application number: CN202022300527.XU
Authority: CN
Inventors: 王洪月
Original assignee: Tangshan Huadian Electrical Engineering Co ltd
Current assignee: Tangshan Huadian Electrical Engineering Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-04-02
Anticipated expiration: 2030-10-15

Abstract

The application relates to a straight-running type distance measuring wheel, which belongs to the technical field of distance measuring wheels and comprises a roller body, a rotating shaft and a push rod, wherein the rotating shaft penetrates through the roller body along the center of the roller body and is rotationally connected with the roller body, the push rod is fixedly connected with one end of the rotating shaft, and the other end of the rotating shaft is connected with an auxiliary supporting device; the auxiliary supporting device comprises a horizontal connecting rod and a vertical connecting rod which are perpendicular to each other and fixedly connected, the horizontal connecting rod and the vertical connecting rod can stretch out and retract along corresponding axial directions, the tail end of the vertical connecting rod is connected with an auxiliary wheel in a rotating mode, and the horizontal connecting rod is connected with the end portion of the rotating shaft in a sliding inserting mode and is fixed. This application has the deviation that reduces in the measurement process and produce, promotes measurement accuracy's effect.

Description

Straight-moving type distance measuring wheel

Technical Field

The application relates to the field of distance measuring wheels, in particular to a straight-moving type distance measuring wheel.

Background

The distance measuring wheel is also called a mechanical distance measuring vehicle, and is widely used for measuring and evaluating construction operations such as professional surveying and mapping operation, road engineering, pipeline laying engineering, wire and cable engineering and the like.

The existing Chinese utility model patent with the granted publication number of CN205262435U discloses a distance measuring wheel with a handle, which comprises a push rod, a roller and a handle, wherein the push rod and the roller are rotatably connected, the handle comprises a connecting part and a handle part, and the connecting part is sleeved outside one end of the push rod. When the distance measuring wheel is used for measuring, the holding part of the handle is held by hands and the roller is pushed to roll forwards.

In view of the above-mentioned related art, the inventor believes that the straight measurement cannot be maintained during the walking measurement by the distance measuring wheel, so that a large deviation may be generated, and the measurement accuracy is greatly reduced.

SUMMERY OF THE UTILITY MODEL

In order to reduce the deviation that produces in the measurement process, promote measurement accuracy, this application provides a straight line formula distance measuring wheel.

The application provides a formula of walking directly range finding wheel adopts following technical scheme:

a straight-moving type distance measuring wheel comprises a roller body, a rotating shaft and a push rod, wherein the rotating shaft penetrates through the roller body along the center of the roller body and is rotatably connected with the roller body, the push rod is fixedly connected with one end of the rotating shaft, and the other end of the rotating shaft is connected with an auxiliary supporting device; the auxiliary supporting device comprises a horizontal connecting rod and a vertical connecting rod which are perpendicular to each other and fixedly connected, the horizontal connecting rod and the vertical connecting rod can stretch out and retract along corresponding axial directions, the tail end of the vertical connecting rod is connected with an auxiliary wheel in a rotating mode, and the horizontal connecting rod is connected with the end portion of the rotating shaft in a sliding inserting mode and is fixed.

By adopting the technical scheme, when the distance measuring wheel is required to be used for measuring, the auxiliary supporting device is firstly installed on the rotating shaft, and the length of the horizontal connecting rod is adjusted according to the flatness of the ground, so that the roller body and the auxiliary wheel are both in a vertical state; when the roughness on ground can not satisfy gyro wheel body and auxiliary wheel and be in vertical state simultaneously, at first place the gyro wheel body on smooth subaerial, then adjust the length of vertical link to can make the auxiliary wheel be in vertical state, and then can reduce the error that produces in the measurement process, promote measuring precision.

Optionally, the horizontal connecting rod includes a first sleeve slidably inserted and fixed with the rotating shaft and a first insertion rod fixed with the vertical connecting rod, the first sleeve is inserted with the first insertion rod, a pair of strip-shaped holes arranged along the axial direction of the first sleeve are formed in the side wall of the first sleeve, and a fastening bolt connected with the first insertion rod is arranged after penetrating through the strip-shaped holes.

Through adopting above-mentioned technical scheme, when the length of horizontal connecting rod needs to be adjusted, at first not hard up fastening bolt, relative movement can take place between first sleeve and the first grafting pole this moment, and fastening bolt can slide along the rectangular hole on the first sleeve, when the length of horizontal connecting rod is fixed, makes fastening bolt compress tightly on first telescopic lateral wall through revolving fastening bolt soon to the realization is fixed the relative position relation between first sleeve and the first grafting pole.

Optionally, the annular groove has been seted up to the tip of axis of rotation, the annular plate of pegging graft each other with the annular groove of first telescopic tip fixedly connected with, be provided with the external screw thread on the outer wall of axis of rotation, the annular arch that fixedly connected with external diameter is the same with the axis of rotation on the first telescopic outer wall, cup joint the lock nut who is connected with the external screw thread on the first telescopic outer wall, the spacing portion of the tip fixedly connected with of axis of rotation and the protruding looks butt of annular is kept away from to lock nut.

Through adopting above-mentioned technical scheme, when needs are connected horizontal connecting rod and axis of rotation, at first peg graft the annular groove at the axis of rotation tip with the annular plate on the first sleeve, annular bulge on the first sleeve lateral wall can the butt on the terminal surface of axis of rotation this moment, then revolve wrong lock nut and make lock nut and the external screw thread of axis of rotation tip be connected, when spacing portion butt on lock nut is on the bellied lateral wall of annular, locking effect reaches the best and realizes connecting axis of rotation and first sleeve.

Optionally, the inner wall of the annular groove is fixedly connected with a guide post, and the outer wall of the annular plate is provided with a guide groove in sliding insertion connection with the guide post.

Through adopting above-mentioned technical scheme, when pegging graft first sleeve and axis of rotation, the guide post can realize sliding grafting with the guide way, can avoid taking place relative rotation between first sleeve and the axis of rotation this moment.

Optionally, the vertical connecting rod includes a second sleeve and a second insertion rod which are slidably inserted, the top of the second sleeve is fixedly connected with the first insertion rod, the tail end of the second insertion rod is rotatably connected with the auxiliary wheel, and at least one fixing component for fixing the second sleeve and the second insertion rod is arranged between the second sleeve and the second insertion rod.

Through adopting above-mentioned technical scheme, when needs adjust the length of vertical pole, adjust the relative position of second sleeve and second peg graft pole, when the auxiliary wheel can guarantee vertical state, utilize fixed subassembly to fix second sleeve and second peg graft pole to promote measuring precision.

Optionally, the fixed subassembly includes the screw rod that radially penetrates inside the second sleeve and carry out the butt to the second peg graft pole along the second sleeve, the end fixedly connected with hand wheel that the screw rod is located the second sleeve outside.

Through adopting above-mentioned technical scheme, when needs fix the relative position relation between second sleeve pipe and the second inserted link, revolve to twist the hand wheel and drive the screw rod and move towards second sleeve pipe is inside, can realize connecting second sleeve pipe and second inserted link when the tip butt of screw rod is on the lateral wall of second inserted link.

Optionally, the end of the screw rod located inside the second sleeve is fixedly connected with a clamping plate.

Through adopting above-mentioned technical scheme, through setting up clamping plate can increase and the second peg graft area of contact between the pole, and then increase frictional force promotes the fixed effect of locking.

Optionally, the clamping plate is arc-shaped, and the radian of the clamping plate is consistent with that of the second plug rod.

Through adopting above-mentioned technical scheme, can make the clamp plate laminate completely on the second inserted link to further increase and the area of contact of second inserted link, promote the fixed effect of locking.

In summary, the present application includes at least one of the following beneficial technical effects:

1. because the vertical connecting rod and the horizontal connecting rod can be stretched, the roller body and the auxiliary wheel can be adjusted to be vertically arranged as much as possible, so that the error generated in measurement can be reduced, and the measurement precision is improved;

2. the connection performance between the second inserting rod and the second sleeve can be improved by arranging the arc-shaped clamping plate between the second inserting rod and the second sleeve.

Drawings

Fig. 1 is a schematic structural view of the entire distance measuring wheel in this embodiment.

Fig. 2 is a schematic structural diagram of the auxiliary supporting device embodied in the embodiment.

Fig. 3 is a schematic structural view showing the rotating shaft in the present embodiment.

Fig. 4 is a schematic view showing a connection relationship between the rotating shaft and the first sleeve in the present embodiment.

Fig. 5 is a schematic structural view showing the vertical link and the auxiliary wheel in the present embodiment.

Description of reference numerals: 1. a roller body; 2. a push rod; 3. a rotating shaft; 31. an annular groove; 32. a guide post; 33. an external thread; 4. a handle; 5. an auxiliary support device; 51. an auxiliary wheel; 52. a horizontal connecting rod; 521. a first sleeve; 5211. a strip-shaped hole; 5212. an annular plate; 5213. a guide groove; 5214. an annular projection; 5215. locking the nut; 5216. a limiting part; 522. a first plug-in rod; 523. fastening a bolt; 53. a vertical connecting rod; 531. a second sleeve; 532. a second plug-in rod; 533. a fixing assembly; 5331. a screw; 5332. a hand wheel; 5333. and (5) clamping the plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses line formula distance measuring wheel. As shown in fig. 1, the distance measuring wheel includes a wheel body 1 and a push rod 2, a rotation shaft 3 penetrating the wheel body 1 is rotatably connected to a central position of the wheel body 1, and the push rod 2 is fixedly connected to one side of the rotation shaft 3 and is parallel to an end surface of the wheel body 1. A handle 4 is fixedly connected to the end of the push rod 2 far away from the roller body 1, and an auxiliary supporting device 5 is movably connected to the other end of the rotating shaft 3.

As shown in fig. 1 and 2, the auxiliary supporting device 5 includes an auxiliary wheel 51 disposed on the other side of the roller body 1, the diameter of the auxiliary wheel 51 is smaller than that of the roller body 1, a horizontal connecting rod 52 and a vertical connecting rod 53 which are perpendicular to each other and fixedly connected are disposed between the auxiliary wheel 51 and the roller body 1, the end of the vertical connecting rod 53 is rotatably connected with the center of the auxiliary wheel 51, and the end of the horizontal connecting rod 52 far from the vertical connecting rod 53 is slidably inserted into and fixed with the rotating shaft 3.

When the distance measuring wheel is used for measuring, the auxiliary supporting device 5 is firstly arranged on the rotating shaft 3, then the handle 4 is held by hand and the rolling wheel is pushed to move forwards, and when the roller body 1 moves forwards, the auxiliary wheel 51 rolls forwards along with the roller body 1.

The horizontal link 52 includes a first sleeve 521 and a first plug-in rod 522 which are slidably plugged into each other, a pair of elongated holes 5211 are formed in a side wall of the first sleeve 521 along an axial direction of the first sleeve 521, and a fastening bolt 523 which is threaded to an end of the first plug-in rod 522 is disposed through the elongated holes 5211. The relative position relationship between the first sleeve 521 and the first inserting rod 522 can be adjusted by loosening the fastening bolt 523, so that the distance between the auxiliary wheel 51 and the roller body 1 can be adjusted. When the ground is uneven, the distance between the roller body 1 and the auxiliary wheel 51 can be adjusted by adjusting the relative position relationship between the first sleeve 521 and the first inserting rod 522, so that the roller body 1 and the auxiliary wheel 51 are in a vertical state as much as possible.

As shown in fig. 2 and 3, an annular groove 31 is formed along the axial direction of the rotating shaft 3 at an end portion where the rotating shaft 3 and the first sleeve 521 are connected to each other, and an annular plate 5212 inserted into the annular groove 31 is fixedly connected to an end portion of the first sleeve 521. The inner wall of the annular groove 31 is fixedly connected with a guide post 32 arranged along the axial direction of the rotating shaft 3, the outer wall of the annular plate 5212 is provided with a guide groove 5213 in sliding insertion connection with the guide post 32, and the first sleeve 521 and the rotating shaft 3 can be prevented from rotating by arranging the guide post 32 and the guide groove 5213.

As shown in fig. 4, an external thread 33 is disposed on the outer wall of the rotating shaft 3 at the position of the annular groove 31, an annular protrusion 5214 having an outer diameter equal to that of the rotating shaft 3 is fixedly connected to the outer wall of the first sleeve 521, a lock nut 5215 interconnected with the external thread 33 is further sleeved on the outer wall of the first sleeve 521, an annular limiting portion 5216 is fixedly connected to the end surface of the lock nut 5215 away from the rotating shaft 3, the limiting portion 5216 is located on the side of the annular protrusion 5214 away from the rotating shaft 3, and the inner diameter of the limiting portion 5216 is equal to the outer diameter of the annular protrusion 5214.

When the first sleeve 521 is coupled with the rotating shaft 3, the annular plate 5212 at the end of the first sleeve 521 is first inserted into the annular groove 31 at the end of the rotating shaft 3, the annular protrusion 5214 abuts against the end surface of the rotating shaft 3, then the lock nut 5215 is rotated to couple the lock nut 5215 with the external thread 33 on the rotating shaft 3, and during the process of screwing the lock nut 5215, the limiting portion 5216 at the end of the lock nut 5215 abuts against the side wall of the annular protrusion 5214, and at this time, the lock nut 5215 and the external nut are in a completely locked state.

As shown in fig. 2 and 5, the vertical link 53 includes a second sleeve 531 and a second inserting rod 532 inserted into each other in the vertical direction, the second sleeve 531 and the first inserting rod 522 are perpendicular to each other and fixedly connected, and an end of the second inserting rod 532 away from the first inserting rod 522 is rotatably connected to the axis of the auxiliary wheel 51. Be provided with a pair of fixed subassembly 533 that is used for pressing from both sides tight second peg graft pole 532 between second sleeve 531 and second peg graft pole 532, when subaerial unevenness's the condition that appears, at first guarantee that roller body 1 is in the horizontally bottom surface, then adjust the position relation between second sleeve 531 and the second peg graft pole 532 to can guarantee that auxiliary wheel 51 laminates subaerial all the time, and then make auxiliary wheel 51 and roller body 1 be in vertical state always, and then can guarantee the measuring accurate nature.

The fixing component 533 comprises a screw 5331 penetrating into the second sleeve 531 to abut against the second inserting rod 532, a hand wheel 5332 is fixedly connected to the outer side of the screw 5331, which is located on the second sleeve 531, and when the second sleeve 531 and the second inserting rod 532 need to be locked and fastened, the hand wheel 5332 is rotated to enable the end of the screw 5331 to abut against the second inserting rod 532, so that the second sleeve 531 and the second inserting rod 532 are fixed.

The end portion of the screw 5331 located inside the second sleeve 531 is fixedly connected with a clamping plate 5333, the clamping plate 5333 is arc-shaped, the radian of the clamping plate 5333 is consistent with the radian of the second inserting rod 532, when the second inserting rod 532 needs to be locked, the clamping plate 5333 can abut against the side wall of the second inserting rod 532, the contact area with the second inserting rod 532 can be increased through the clamping plate 5333, friction force is increased, and the locking effect of the second inserting rod 532 can be improved.

The implementation principle of the straight-moving type distance measuring wheel in the embodiment of the application is as follows: when the distance measuring wheel is required to be used for measuring, firstly, the auxiliary supporting device 5 is installed on the rotating shaft 3, and then the relative position relation between the first sleeve 521 and the first inserting rod 522 is adjusted according to the flatness of the ground, so that the auxiliary wheel 51 and the roller body 1 are ensured to be in a vertical state for measuring as much as possible; when it cannot be guaranteed that the roller body 1 and the auxiliary wheel 51 are in the vertical state at the same time, the roller body 1 is firstly guaranteed to be in the vertical state, and then the specific length of the vertical connecting rod 53 is adjusted according to the specific situation of the ground, so that the specific height of the auxiliary wheel 51 is adjusted.

When the specific height of the auxiliary wheel 51 needs to be adjusted, the relative position relationship between the second sleeve 531 and the second inserting rod 532 is adjusted, and then the hand wheel 5332 is screwed to drive the screw 5331 and the clamping plate 5333 to abut against the second inserting rod 532, so that the second inserting rod 532 and the second sleeve 531 are fixed, the roller body 1 and the auxiliary wheel 51 can be controlled to be in a vertical state at the same time, and the accuracy of measured data can be guaranteed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a formula of walking directly wheel of finding range, includes gyro wheel body (1), passes gyro wheel body (1) along the center of gyro wheel body (1) and rotates axis of rotation (3) of being connected and with gyro wheel body (1) and one of them one end fixed connection's of axis of rotation (3) push rod (2), its characterized in that: the other end of the rotating shaft (3) is connected with an auxiliary supporting device (5);

the auxiliary supporting device (5) comprises a horizontal connecting rod (52) and a vertical connecting rod (53) which are perpendicular to each other and fixedly connected, the horizontal connecting rod (52) and the vertical connecting rod (53) can stretch along corresponding axial directions, the tail end of the vertical connecting rod (53) is rotatably connected with an auxiliary wheel (51), and the horizontal connecting rod (52) is slidably inserted into and fixed with the end part of the rotating shaft (3).

2. A ranging wheel of a straight type as claimed in claim 1, wherein: the horizontal connecting rod (52) comprises a first sleeve (521) which is slidably inserted and fixed with the rotating shaft (3) and a first inserting rod (522) which is fixed with the vertical connecting rod (53), the first sleeve (521) is inserted and connected with the first inserting rod (522), a pair of strip-shaped holes (5211) which are axially arranged along the first sleeve (521) are formed in the side wall of the first sleeve (521), and a fastening bolt (523) connected with the first inserting rod (522) is arranged through the strip-shaped holes (5211).

3. A ranging wheel of a straight type as claimed in claim 2, wherein: annular groove (31) have been seted up to the tip of axis of rotation (3), the tip fixedly connected with of first sleeve (521) and annular plate (5212) of pegging graft each other of annular groove (31), be provided with external screw thread (33) on the outer wall of axis of rotation (3), fixedly connected with external diameter and the annular bulge (5214) that axis of rotation (3) are the same on the outer wall of first sleeve (521), cup joint lock nut (5215) that are connected with external screw thread (33) on the outer wall of first sleeve (521), the tip fixedly connected with of axis of rotation (3) is kept away from in lock nut (5215) and spacing portion (5216) of annular bulge (5214) looks butt.

4. A ranging wheel of a straight type as claimed in claim 3, wherein: the inner wall of the annular groove (31) is fixedly connected with a guide post (32), and the outer wall of the annular plate (5212) is provided with a guide groove (5213) which is inserted with the guide post (32) in a sliding manner.

5. A ranging wheel of a straight type as claimed in claim 1, wherein: the vertical connecting rod (53) comprises a second sleeve (531) and a second inserting rod (532) which are slidably inserted, the top of the second sleeve (531) is fixedly connected with the first inserting rod (522), the tail end of the second inserting rod (532) is rotatably connected with the auxiliary wheel (51), and at least one fixing component (533) for fixing the second sleeve (531) and the second inserting rod (532) is arranged between the second sleeve (531) and the second inserting rod (532).

6. A ranging wheel of a straight type as claimed in claim 5, wherein: the fixing component (533) comprises a screw rod (5331) which penetrates into the second sleeve (531) along the radial direction of the second sleeve (531) and abuts against the second insertion rod (532), and a hand wheel (5332) is fixedly connected to the end portion, located on the outer side of the second sleeve (531), of the screw rod (5331).

7. A ranging wheel of a straight type as claimed in claim 6, wherein: the end part of the screw rod (5331) positioned at the inner side of the second sleeve (531) is fixedly connected with a clamping plate (5333).

8. A ranging wheel of a straight type as claimed in claim 7, wherein: the clamping plate (5333) is arc-shaped, and the radian of the clamping plate (5333) is consistent with that of the second insertion rod (532).