Brake and reset structure of distance measuring wheel

Abstract

The brake and reset structure comprises a shell and a rod shell connected with the shell, the side face of the shell is connected with a wheel unit, a rod body is arranged in the rod shell and comprises a brake rod and a reset rod, a brake piece matched with the wheel unit is arranged in the shell, and the brake piece is connected with the bottom of the brake rod in a fixed or abutting mode. Brake grooves matched with the wheel units are formed in the brake pieces; a counting unit and a reset unit matched with the counting unit are further arranged in the shell, and one side of the reset unit is connected with the bottom of the reset rod in an abutting mode. The distance measuring wheel is reasonable in structural design, in the working process of a user, the distance measuring wheel can be braked by controlling the brake piece through the brake switch, measured data of the distance measuring wheel can be zeroed by controlling the reset unit through the button, the brake switch and the button are both arranged on the rod shell, operation of the user in the working process is facilitated, the internal structure is simple, and cost is low. And the phenomenon of blockage is avoided.

Description

Technical Field

[0001] The utility model relates to the field of distance measuring wheels, in particular to a braking and resetting structure of a distance measuring wheel. Background Art

[0002] The measuring wheel, also known as a mechanical measuring vehicle, is a tool that uses the rotation of the wheel to measure distance. Digital measuring wheels and measuring wheels are widely used in the measurement and evaluation of professional surveying and mapping operations, road projects, pipeline laying projects, wire and cable projects and other construction operations.

[0003] The existing distance measuring wheel usually does not have any brake structure during operation. Therefore, when the distance measuring wheel needs to stop moving, it will still move due to inertia, resulting in a large deviation in the measurement result. In addition, the measurement value reset structure of the existing distance measuring wheel is relatively complicated, and the internal reset structure is prone to jamming during operation, which is inconvenient for users to perform measurement work. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a brake and reset structure of a distance measuring wheel in view of the current status of the prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a brake and reset structure of a distance measuring wheel, comprising a shell and a rod shell connected to the shell, a wheel unit is connected to the side of the shell, a rod body is arranged in the rod shell, the rod body comprises a brake rod and a reset rod, a brake member matching with the wheel unit is arranged in the shell, the brake member is fixed or abuttingly connected with the bottom of the brake rod, and a brake groove matching with the wheel unit is arranged on the brake member; a counting unit and a reset unit matching with the counting unit are also arranged in the shell, and one side of the reset unit is abuttingly connected with the bottom of the reset rod.

[0006] Preferably, the reset unit includes a first linkage, a second linkage and a reset shaft cooperating with the counting unit, one end of the first linkage is connected in contact with the bottom of the reset rod, the other end of the first linkage is connected in contact with any end of the second linkage, and the end of the second linkage away from the first linkage is connected in contact with the reset shaft; the reset shaft is inserted into the counting unit.

[0007] Preferably, the counting unit includes a counting box and a counting display arranged on the shell, the counting box is provided with a counting gear unit cooperating with the reset shaft, the side of the counting box is provided with a sliding groove cooperating with the reset shaft, and the end of the reset shaft rotates along the sliding groove in the sliding groove.

[0008] Preferably, the wheel unit includes an axle, on which is sleeved a rubber wheel that cooperates with the brake groove, and the end of the axle is connected to a distance measuring roller; the rubber wheel is connected to a linkage gear unit that cooperates with the counting gear unit, and the linkage gear unit is arranged on a side of the rubber wheel away from the distance measuring roller.

[0009] Preferably, the brake rod comprises an upper brake rod and a lower brake rod, the bottom of the upper brake rod is fixedly or abuttingly connected to the top of the lower brake rod, and the bottom of the lower brake rod is fixedly or abuttingly connected to the brake member.

[0010] Preferably, a brake switch for controlling the brake member is provided on the rod housing, the brake switch is connected to a fixed shaft in the rod housing, and the brake switch rotates around the fixed shaft; one end of the brake switch is arranged outside the rod housing, and the other end of the brake switch is connected to the top of the brake upper rod.

[0011] Preferably, the reset rod comprises a reset upper rod and a reset lower rod, the bottom of the reset upper rod and the top of the reset lower rod are fixed or abuttingly connected, and the bottom of the reset lower rod is abuttingly connected to one end of the first linkage member.

[0012] Preferably, a reset button for controlling the reset unit is provided on the rod housing, and the bottom of the reset button is fixedly or abuttingly connected to the top of the reset upper rod.

[0013] Preferably, the shell includes an upper shell and a lower shell, and the bottom of the lower shell extends upward to provide a mounting piece for mounting the first linkage piece and the second linkage piece, the inner wall of the mounting piece is provided with a rotating groove that cooperates with the first linkage piece and the second linkage piece, and the first linkage piece and the second linkage piece are both provided with a rotating piece that cooperates with the rotating groove.

[0014] Preferably, the brake rod and the reset rod are both sleeved with springs for resetting the rod bodies.

[0015] Compared with the prior art, the utility model has the advantages that during work, the user can control the brake member through the brake switch to brake the distance measuring wheel, and control the reset unit through the button to reset the measurement data of the distance measuring wheel to zero, and the brake switch and the button are both arranged on the rod shell, which is convenient for the user to operate during work, and the internal structure is simple and will not cause jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model;

[0018] Figure 3 It is a partial structural schematic diagram of the utility model;

[0019] Figure 4 It is a partial structural schematic diagram of the utility model;

[0020] Figure 5 It is a partial structural schematic diagram of the utility model;

[0021] Figure 6It is a partial structural schematic diagram of the utility model;

[0022] Figure 7 It is a partial structural schematic diagram of the utility model.

[0023] : 1. shell; 111. upper shell; 112. lower shell; 2. rod shell; 3. brake rod; 31. brake upper rod; 32. brake lower rod; 4. reset rod; 41. reset upper rod; 42. reset lower rod; 5. brake member; 51. brake groove; 6. first linkage member; 7. second linkage member; 8. reset shaft; 9. counting box; 10. counting display; 11. counting gear unit; 12. sliding groove; 13. axis; 14. rubber wheel; 15. linkage gear unit; 16. brake switch; 17. fixed shaft; 18. reset button; 19. mounting member; 191. rotating groove; 20. rotating member; 21. spring; 22. lap member; 221. lap groove; 23. assembly member; 231. assembly groove. DETAILED DESCRIPTION

[0024] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0025] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back... are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] Moreover, some of the above-mentioned terms may be used to express other meanings besides indicating orientation or positional relationships. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in certain cases. A person skilled in the art may understand the specific meanings of these terms in the present utility model according to the specific circumstances.

[0027] In addition, the terms "install", "set", "provided with", "connect", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. The connection methods involved in this article are prior arts, without any improvement, and are all common knowledge of those skilled in the art. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] like Figures 1 to 7 As shown, the utility model provides a brake and reset structure of a distance measuring wheel, comprising a shell 1 and a rod shell 2 connected to the shell 1, the bottom of the rod shell 2 is inserted into the shell 1; a wheel unit is connected to the side of the shell 1, a rod body is arranged in the rod shell 2, the rod body comprises a brake rod 3 and a reset rod 4, and a brake member 5 matched with the wheel unit is arranged in the shell 1; specifically, the brake member 5 is fixed or abuttingly connected to the bottom of the brake rod 3, and a brake groove 51 matched with the wheel unit is arranged on the brake member 5, and the brake groove 51 is in a "V" shape or a "C" shape; a counting unit and a reset unit matched with the counting unit are also arranged in the shell 1, and one side of the reset unit is abuttingly connected to the bottom of the reset rod 4.

[0030] The reset unit includes a first linkage member 6, a second linkage member 7 and a reset shaft 8 that cooperates with the counting unit; specifically, one end of the first linkage member 6 is connected in contact with the bottom of the reset rod 4, the other end of the first linkage member 6 is connected in contact with any end of the second linkage member 7, and the end of the second linkage member 7 away from the first linkage member 6 is connected in contact with the reset shaft 8; the reset shaft 8 is inserted into the counting unit.

[0031] The counting unit includes a counting box 9 and a counting display 10 arranged on the housing 1. A counting gear unit 11 is arranged in the counting box 9 and cooperates with the reset shaft 8. A sliding groove 12 is arranged on the side of the counting box 9 and cooperates with the reset shaft 8. The end of the reset shaft 8 rotates along the sliding groove 12 in the sliding groove 12.

[0032] The wheel unit includes an axle 13, on which a rubber wheel 14 matching with a brake groove 51 is sleeved, and a distance measuring roller is connected to the end of the axle 13; specifically, a linkage gear unit 15 matching with a counting gear unit 11 is connected to the rubber wheel 14, and the linkage gear unit 15 is arranged on a side of the rubber wheel 14 away from the distance measuring roller, and the linkage gear unit 15 is sleeved on the axle 13; the inner wall of the brake groove 51 contacts the surface of the rubber wheel 14 to generate friction, so that the rotating rubber wheel 14 stops rotating during the movement, and then the axle 13 connected to the rubber wheel 14 stops rotating, and then the distance measuring roller connected to the axle 13 stops rotating.

[0033] The brake rod 3 includes an upper brake rod 31 and a lower brake rod 32 ; specifically, the bottom of the upper brake rod 31 is fixedly or abuttingly connected to the top of the lower brake rod 32 , and the bottom of the lower brake rod 32 is fixedly or abuttingly connected to the brake member 5 .

[0034] The rod housing 2 is provided with a brake switch 16 for controlling the brake member 5. The brake switch 16 is connected to a fixed shaft 17 in the rod housing 2, and the brake switch 16 rotates around the fixed shaft 17. Specifically, one end of the brake switch 16 is arranged on the outside of the rod housing 2, and the other end of the brake switch 16 is in contact with the top of the brake upper rod 31.

[0035] The reset rod 4 includes a reset upper rod 41 and a reset lower rod 42 ; specifically, the bottom of the reset upper rod 41 is fixed or abutted against the top of the reset lower rod 42 , and the bottom of the reset lower rod 42 is abutted against one end of the first linkage member 6 .

[0036] The rod housing 2 is provided with a reset button 18 for controlling the reset unit, and the bottom of the reset button 18 is fixedly or abuttingly connected with the top of the reset upper rod 41 .

[0037] The shell 1 includes an upper shell 111 and a lower shell 112; specifically, a mounting member 19 for mounting the first linkage member 6 and the second linkage member 7 is extended upward from the bottom of the lower shell 112, and a rotating groove 191 cooperating with the first linkage member 6 and the second linkage member 7 is provided on the inner wall of the mounting member 19, and a rotating member 20 cooperating with the rotating groove 191 is provided on the first linkage member 6 and the second linkage member 7; the rotating member 20 is clamped in the rotating groove 191, and the first linkage member 6 and the second linkage member 7 both rotate around the rotating member 20 as the axis.

[0038] The bottom of the lower shell 112 is further extended upward to form a lap joint 22 that cooperates with the shaft 13 , and the lap joint 22 is provided with a lap joint groove 221 for lap jointing the end of the shaft 13 .

[0039] The bottom of the lower housing 112 is also provided with an assembly part 23 extending upwards for mounting the linkage gear unit 15 , and the inner wall of the assembly part 23 is provided with an assembly groove 231 matching with the linkage gear unit 15 .

[0040] The brake rod 3 and the reset rod 4 are both sleeved with a spring 21 for resetting the rod body. The spring 21 is sleeved at the bottom positions of the brake upper rod 31, the brake lower rod 32, the reset upper rod 41 and the reset lower rod 42 respectively.

[0041] The working principle of the utility model is as follows: during the movement of the distance measuring wheel, the distance measuring roller rotates and drives the rubber wheel 14 to rotate synchronously through the shaft 13 connected thereto, the rubber wheel 14 drives the linkage gear unit 15 connected thereto to rotate, the linkage gear unit 15 drives the counting gear unit 11 meshing with it to rotate, and the counting gear unit 11 rotates to display the measured value on the housing 1 through the counting display 10. When the user needs to brake, he presses the brake switch 16, and the brake switch 16 rotates around the fixed axis 17. The end of the brake switch 16 away from the pressing position moves downward and pushes the brake upper rod 31 connected to it to move downward, and the brake upper rod 31 pushes the brake lower rod 32 to move downward, and the bottom of the brake lower rod 32 pushes the brake member 5 fixed or connected to it to move downward until the inner wall of the "V"-shaped or "C"-shaped brake groove 51 on the brake member 5 contacts the surface of the rubber wheel 14 to generate friction, so that the rotating rubber wheel 14 during the movement is braked and stops rotating, and then the axis 13 connected to the rubber wheel 14 stops rotating, and the axis 13 stops the distance measuring roller connected to it to stop rotating, thereby achieving the braking effect; release the brake switch 16, the brake upper rod 31 and the brake lower rod 32 return to their original positions under the action of the spring 21, and the inner wall of the brake groove 51 separates from the surface of the rubber wheel 14, so that the rubber wheel 14, the axis 13 and the distance measuring roller return to a state where they can rotate. When the user needs to reset the measured value to zero, the reset button 18 is pressed, and the reset button 18 drives the reset upper rod 41 fixed or connected thereto to move downward, and the reset upper rod 41 pushes the reset lower rod 42 to move downward, and the bottom of the reset lower rod 42 pushes one end of the first linkage member 6 connected thereto to move downward, and the first linkage member 6 rotates around the rotating member 20, and the other end of the first linkage member 6 moves upward and pushes one end of the second linkage member 7 connected thereto to move upward, and the second linkage member 7 rotates around the rotating member 20, and the other end of the second linkage member 7 moves downward, and the second linkage member 7 pushes the reset shaft 8 connected thereto to rotate along the sliding groove 12, and the reset shaft 8 rotates and drives the counting gear unit 11 in the counting box 9 to rotate to reset the measured data to zero.

[0042] In the counting unit of the present invention, the counting gear unit 11 in the counting box 9 rotates to display the measured value on the housing 1 through the counting display 10. The counting gear unit 11 rotates to achieve distance measurement. This is a technical means and component commonly used by technicians in this field, so it will not be described in detail.

[0043] In the counting unit of the present invention, the reset shaft 8 rotates and drives the counting gear unit 11 in the counting box 9 to rotate so that the measurement data is reset to zero. This is a common technical means and component used by those skilled in the art, so it will not be described in detail.

[0044] The advantages of the utility model are that during the working process, the user can control the brake member 5 through the brake switch 16 to brake the distance measuring wheel, and control the reset unit through the button to reset the measurement data of the distance measuring wheel. The brake switch 16 and the button are both arranged on the rod housing 2, which is convenient for the user to operate during the working process, and the internal structure is simple and there will be no jamming phenomenon.

[0045] In the description of this specification, reference is made to the terms "one embodiment", "some embodiments", "examples", "specific examples", etc.

[0046] The description of "example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0047] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art, which will not be described in detail here.

[0048] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, various changes and variations can be made in the specific implementation methods and application scopes based on the ideas of the present invention. The content of this specification should not be understood as a limitation on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A braking and resetting structure for a distance measuring wheel, characterized in that: It includes a shell and a rod shell connected to the shell, a wheel unit is connected to the side of the shell, a rod body is arranged in the rod shell, the rod body includes a brake rod and a reset rod, a brake component matching with the wheel unit is arranged in the shell, the brake component is fixed or abuttingly connected to the bottom of the brake rod, and a brake groove matching with the wheel unit is arranged on the brake component; a counting unit and a reset unit matching with the counting unit are also arranged in the shell, and one side of the reset unit is abuttingly connected to the bottom of the reset rod.

2. The braking and resetting structure of a distance measuring wheel according to claim 1, characterized in that: The reset unit includes a first linkage, a second linkage and a reset shaft that cooperates with the counting unit. One end of the first linkage is connected to the bottom of the reset rod, the other end of the first linkage is connected to any end of the second linkage, and the end of the second linkage away from the first linkage is connected to the reset shaft. The reset shaft is inserted into the counting unit.

3. The braking and resetting structure of a distance measuring wheel according to claim 2, characterized in that: The counting unit comprises a counting box and a counting display arranged on the shell. A counting gear unit matched with the reset shaft is arranged in the counting box. A sliding groove matched with the reset shaft is arranged on the side of the counting box. The end of the reset shaft rotates along the sliding groove in the sliding groove.

4. The braking and resetting structure of a distance measuring wheel according to claim 3, characterized in that: The wheel unit includes an axle, a rubber wheel matching with the brake groove is sleeved on the axle, and a distance measuring roller is connected to the end of the axle; a linkage gear unit matching with the counting gear unit is connected to the rubber wheel, and the linkage gear unit is arranged on a side of the rubber wheel away from the distance measuring roller.

5. The braking and resetting structure of a distance measuring wheel according to claim 1, characterized in that: The brake rod comprises an upper brake rod and a lower brake rod, the bottom of the upper brake rod is fixedly or abuttingly connected to the top of the lower brake rod, and the bottom of the lower brake rod is fixedly or abuttingly connected to the brake member.

6. The braking and resetting structure of a distance measuring wheel according to claim 5, characterized in that: The rod shell is provided with a brake switch for controlling the brake member. The brake switch is connected to a fixed shaft in the rod shell and rotates around the fixed shaft. One end of the brake switch is arranged outside the rod shell, and the other end of the brake switch is in contact with the top of the brake upper rod.

7. The braking and resetting structure of a distance measuring wheel according to claim 2, characterized in that: The reset rod comprises a reset upper rod and a reset lower rod, the bottom of the reset upper rod is fixed or abutted with the top of the reset lower rod, and the bottom of the reset lower rod is abutted with one end of the first linkage member.

8. The braking and resetting structure of a distance measuring wheel according to claim 7, characterized in that: The rod housing is provided with a reset button for controlling the reset unit, and the bottom of the reset button is fixedly or abuttingly connected with the top of the reset upper rod.

9. The braking and resetting structure of a distance measuring wheel according to claim 2, characterized in that: The shell includes an upper shell and a lower shell. The bottom of the lower shell extends upward to provide a mounting piece for mounting the first linkage member and the second linkage member. The inner wall of the mounting piece is provided with a rotating groove that cooperates with the first linkage member and the second linkage member. The first linkage member and the second linkage member are both provided with a rotating member that cooperates with the rotating groove.

10. The braking and resetting structure of a distance measuring wheel according to claim 1, characterized in that: The brake rod and the reset rod are both sleeved with springs for resetting the rod bodies.

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