Range finder wheel

Abstract

The present invention discloses a ranging wheel, which includes a rod body. An outer sleeve is installed at the top of the rod body, and a housing is installed at the bottom of the rod body. A walking wheel is arranged inside the housing. An execution component is arranged inside the outer sleeve. The user can also perform a braking operation by operating the execution component. A braking component is arranged at the bottom of the rod body. A braking rope is connected between the execution component and the braking component. Specifically: The braking component includes a dial plate. The dial plate has a fixed end and a movable end. A brake block is installed on the movable end through a shaft. After the brake block contacts the walking wheel, it increases the damping through deformation to achieve the purpose of braking. The designed braking component can brake and limit the walking wheel when the ranging wheel temporarily stops, avoiding the problem of large measurement deviation caused by the movement of the walking wheel due to accidental contact, effectively improving the measurement accuracy, and the braking component is convenient to operate and easy to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of ranging devices, and particularly relates to a ranging wheel. Background Art

[0002] The ranging wheel is also known as a mechanical ranging vehicle, a digital display ranging wheel, and a measuring wheel, and is widely used in professional surveying and mapping operations, and the measurement and evaluation of construction operations such as road engineering, pipeline laying projects, and wire and cable projects.

[0003] The existing ranging wheel as a whole occupies a large space and cannot be folded to the minimum extent, and there is room for improvement in storage. In addition, in the operation of the existing ranging wheel, there is no braking structure. Therefore, when the ranging wheel stops moving, there will still be an accidental movement phenomenon, resulting in a large deviation in the measurement result. Summary of the Invention

[0004] The purpose of the present invention is to provide a ranging wheel to solve the problems in the above-mentioned background art that the existing ranging wheel cannot be folded to the minimum extent, resulting in a large space occupation, and there is no braking structure, which will cause a large deviation in the measurement result due to accidental movement during actual measurement.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A ranging wheel includes a rod body. An outer sleeve is installed at the top of the rod body, and a housing is installed at the bottom of the rod body. A walking wheel is arranged inside the housing. An execution component is arranged inside the outer sleeve. The user can also perform a braking operation by operating the execution component. A braking component is arranged at the bottom of the rod body. A braking rope is connected between the execution component and the braking component, where:

[0006] The braking component includes a dial plate. The dial plate has a fixed end and a movable end. A brake block is installed on the movable end through a shaft. After the brake block contacts the walking wheel, it increases the damping through deformation to achieve the braking purpose. The bottom of the brake block abuts against the surface of the walking wheel. A rotating shaft is arranged at the fixed end of the dial plate. A connecting block is fixed on the side of the rotating shaft. The connecting block is connected to the bottom end of the braking rope. One end of the rotating shaft is rotatably installed on the inner wall of the housing;

[0007] The execution component includes a dial piece installed at the top end of the braking rope in the middle. One end of the dial piece is formed with tooth grooves at equal intervals for limiting after braking. The other end is rotatably installed on the inner side wall of the outer sleeve. An adjusting plate is further arranged outside one end of the dial piece. A convex head that is snapped into the inner side of the tooth groove is fixed at one side of the bottom of the adjusting plate. A button is arranged at the top of the adjusting plate for closing the brake. Protrusions are formed in the middle of the button and on the other side of the middle of the adjusting plate. A torsion spring one and a torsion spring two are respectively arranged inside the outer sleeve. The torsion spring one is connected to the button, and the torsion spring two is connected to the adjusting plate.

[0008] Preferably, both ends of the first torsion spring extend outwards, and one end of the first torsion spring is limited inside the outer sleeve, while the other end abuts against the protrusion on the button to provide a resilience force. The second torsion spring has a single end extending outwards, and this end abuts against the protrusion on the adjusting plate.

[0009] Preferably, the bottom of the button is inclined, which is convenient for pressing downwards and pushing the adjusting plate. The bottom of the button is in fit connection with the top of the adjusting plate, and the top of the adjusting plate is in an arc structure.

[0010] Preferably, one end of the dial extends to the outside of the outer sleeve, and the whole dial is in a fan-shaped structure.

[0011] Preferably, the rod body is composed of multiple sections, and a folding assembly is also arranged between every two sections of the rod body to realize folding and contraction, reducing the occupied space. The folding assembly includes sleeves symmetrically and fixedly sleeved on the opposite ends of adjacent rod bodies. A rotary clamping plate is rotatably installed on the front surface of one of the sleeves, and a buckle for the sleeve to be clamped and connected is fixed on the other sleeve.

[0012] Preferably, connection seats are fixed on the rear surfaces of both sleeves for convenient installation and connection, and the two connection seats are rotatably connected by a shaft.

[0013] Preferably, one end of the outer sleeve forms an inclined handle for convenient hand-holding by the user, and a display screen is also installed on the outer sleeve.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The designed braking assembly can brake and limit the walking wheels when the ranging wheels temporarily stop, avoiding the problem of large measurement deviation caused by accidental contact resulting in the movement of the walking wheels, effectively improving the measurement accuracy, and the braking assembly is convenient to operate and easy to use;

[0016] 2. Through the designed folding assembly, the device can be folded to the minimum extent, which is convenient for storage during later idleness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is of the present invention Figure 1 an enlarged schematic diagram of area A in;

[0019] Figure 3 is a schematic structural diagram of the execution assembly of the present invention

[0020] In the figure: 1. Handle; 2. Rod body; 3. Rotating clamping plate; 4. Buckle; 5. Connecting seat; 6. Traveling wheel; 7. Sleeve; 8. Paddle; 9. Brake rope; 10. Connecting block; 11. Rotating shaft; 12. Paddle board; 13. Brake block; 14. First torsion spring; 15. Button; 16. Adjusting plate; 17. Second torsion spring; 18. Convex head; 19. Tooth groove; 20. Outer sleeve. Detailed implementation manner

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 to 3, the present invention provides a technical solution: a distance measuring wheel, including a rod body 2, with an outer sleeve 20 installed at the top of the rod body 2, a housing installed at the bottom of the rod body 2, a walking wheel 6 arranged inside the housing, an execution component arranged inside the outer sleeve 20, and a braking component arranged at the bottom of the rod body 2. The designed braking component can brake and limit the walking wheel 6 when the distance measuring wheel temporarily stops, avoiding the problem of large measurement deviation caused by the movement of the walking wheel 6 due to accidental contact, effectively improving the measurement accuracy. Moreover, this braking component is convenient to operate and easy to use. There is a brake rope 9 connected between the execution component and the braking component, where: The braking component includes a dial 12, the dial 12 has a fixed end and a movable end, a brake block 13 is installed on the movable end through a shaft, the bottom of the brake block 13 abuts against the surface of the walking wheel 6, a rotating shaft 11 is arranged on the fixed end of the dial 12, a connecting block 10 is fixed on the side of the rotating shaft 11, the connecting block 10 is connected to the bottom end of the brake rope 9, and one end of the rotating shaft 11 is rotatably installed on the inner wall of the housing; The execution component includes a dial 8 with the top end of the brake rope 9 installed in the middle, a toothed groove 19 is formed at equal intervals at one end of the dial 8, which can be engaged with a convex head 18 to ensure the position limit after braking and realize the normal braking function without being affected. The other end is rotatably installed on the inner side wall of the outer sleeve 20. An adjusting plate 16 is also arranged on the outer side of one end of the dial 8. A convex head 18 that is inserted into the inner side of the toothed groove 19 is fixed on one side of the bottom of the adjusting plate 16. A button 15 is arranged on the top of the adjusting plate 16. Protrusions are formed in the middle of the button 15 and on the other side of the middle of the adjusting plate 16. A torsion spring one 14 and a torsion spring two 17 are respectively arranged inside the outer sleeve 20. The torsion spring one 14 is connected to the button 15, and the torsion spring two 17 is connected to the adjusting plate 16. The two ends of the torsion spring one 14 extend outwards, and one end of the torsion spring one 14 is limited inside the outer sleeve 20, while the other end abuts against the protrusion on the button 15, which can generate a return force to realize the reset of the button 15 in the later stage. The torsion spring two 17 has a single end extending outwards, and this end abuts against the protrusion on the adjusting plate 16. The bottom of the button 15 is inclined, and the bottom of the button 15 is in fit connection with the top of the adjusting plate 16. The top of the adjusting plate 16 is in an arc structure to facilitate the insertion of the button 15. One end of the dial 8 extends to the outside of the outer sleeve 20, and the dial 8 is in a fan-shaped structure as a whole.

[0023] In this embodiment, preferably, the rod body 2 is composed of multiple segments, and a folding assembly is further provided between every two segments of the rod body 2. Through the designed folding assembly, the device can be folded to the minimum extent, which is convenient for storage during later idle periods. The folding assembly includes sleeves 7 symmetrically and fixedly sleeved on the opposite ends of adjacent rod bodies 2. A rotating clamping plate 3 is rotatably installed on the front surface of one of the sleeves 7, and a buckle 4 for the sleeve 7 to be snap-connected is fixed on the other sleeve 7. Connection seats 5 are fixedly installed on the rear surfaces of the two sleeves 7, and the two connection seats 5 are rotatably connected by a shaft. One end of the outer sleeve 20 forms an inclined handle 1, and a display screen is also installed on the outer sleeve 20.

[0024] Working principle and usage process of the present invention: During daily storage of the present invention, the rotating clamping plate 3 at the positions of the bottom and middle rod bodies 2 is pulled, and the rotating clamping plate 3 is separated from the buckle 4. Subsequently, it is flipped and folded through the connection seat 5. By the same method, the rod bodies 2 at the top and middle positions are flipped and folded again to complete the entire folding and storage; during normal use, it moves through the traveling wheels 6, and the distance traveled by the traveling wheels 6 is statistically calculated by the data sensor inside the bottom rod body 2. Since this principle is prior art, it will not be elaborated further here; when it is necessary to temporarily restrict the movement of the traveling wheels 6, refer to Figure 3 , press the dial 8 protruding to the outside of the bottom of the outer sleeve 20. At this time, the dial 8 is engaged with the convex head 18 through the tooth groove 19 to complete the position limitation of the dial 8. At this time, the height of one end of the dial 8 is lifted, and the other end rotates downward. At this time, the brake rope 9 in the inner area of the outer sleeve 20 will be stretched upward; then refer to Figure 2 , when the brake rope 9 is stretched upward, the end of the connection block 10 connected to the brake rope 9 will move upward together, and the other end of the connection block 10 drives the rotating shaft 11 to perform a clockwise circular rotation. At this time, the rotating shaft 11 drives the dial 12 to move in the same direction, and the dial 12 drives the brake block 13 to move toward the surface of the traveling wheel 6. When the brake block 13 contacts the surface of the traveling wheel 6, the entire braking action is completed. The tightness of the brake is determined by the pressing force of the dial 8. The more the dial 8 is pressed into the inner area of the outer sleeve 20, when the tooth groove 19 at the bottom position is engaged with the convex head 18, the closer the brake block 13 fits with the traveling wheel 6, the greater the friction, and the better the braking effect. When it is necessary to move normally later, continue to refer to Figure 3, first press the button 15 on the outer sleeve 20. The protrusion on the side of the button 15 will squeeze the first torsion spring 14, and the first torsion spring 14 generates a resilience force. During the continuous pressing of the button 15, the bottom of the button 15 is inclined, and drives the adjusting plate 16 to move towards the inner wall of the outer sleeve 20. At this time, the protrusion on the side of the adjusting plate 16 will squeeze the second torsion spring 17, and the second torsion spring 17 also generates a resilience force. Then, the convex head 18 on the bottom side of the adjusting plate 16 moves out of the inside of the tooth groove 19. After the dial 8 is no longer restricted by the clamping limit, it returns to its original position, the brake rope 9 descends, and the connecting block 10, the rotating shaft 11, the dial plate 12, and the brake block 13 return to their original positions, and the traveling wheel 6 can continue to travel. Finally, release the pressure on the button 15, the first torsion spring 14 rebounds the button 15 to its original position, and the second torsion spring 17 rebounds the adjusting plate 16 to its original position. The adjusting plate 16 is snapped into the tooth groove 19 at the top position through the convex head 18 to ensure that the two are always in a connected state.

[0025] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distance measuring wheel, comprising a rod body (2), a jacket (20) is installed at the top of the rod body (2), a housing is installed at the bottom of the rod body (2), and a traveling wheel (6) is arranged inside the housing. Characterized in that: An execution component is arranged inside the jacket (20), and a brake component is arranged at the bottom of the rod body (2). A brake rope (9) is connected between the execution component and the brake component, wherein: The brake component includes a dial plate (12). The dial plate (12) has a fixed end and a movable end. A brake block (13) is installed on the movable end through a shaft. The bottom of the brake block (13) abuts against the surface of the traveling wheel (6). A rotating shaft (11) is arranged at the fixed end of the dial plate (12). A connecting block (10) is fixed on the side of the rotating shaft (11). The connecting block (10) is connected to the bottom end of the brake rope (9), and one end of the rotating shaft (11) is rotatably installed on the inner wall of the housing. The execution component includes a dial (8) with the top end of the brake rope (9) installed in the middle. One end of the dial (8) is formed with tooth grooves (19) at equal intervals, and the other end is rotatably installed on the inner side wall of the jacket (20). An adjusting plate (16) is further arranged outside one end of the dial (8). A convex head (18) that is snapped into the inside of the tooth groove (19) is fixed on one side of the bottom of the adjusting plate (16). A button (15) is arranged on the top of the adjusting plate (16). Protrusions are formed in the middle of the button (15) and on the other side of the middle of the adjusting plate (16). A first torsion spring (14) and a second torsion spring (17) are respectively arranged inside the jacket (20). The first torsion spring (14) is connected to the button (15), and the second torsion spring (17) is connected to the adjusting plate (16). Both ends of the first torsion spring (14) extend outwards. One end of the first torsion spring (14) is limited inside the jacket (20), and the other end abuts against the protrusion on the button (15). The second torsion spring (17) has a single end extending outwards, and this end abuts against the protrusion on the adjusting plate (16). The bottom of the button (15) is inclined, and the bottom of the button (15) is attached and connected to the top of the adjusting plate (16). The top of the adjusting plate (16) is of an arc-shaped structure. One end of the dial (8) extends to the outside of the jacket (20), and the dial (8) is integrally of a fan-shaped structure.

2. The distance measuring wheel according to claim 1, Characterized in that: The rod body (2) is composed of multiple sections. A folding component is further arranged between every two sections of the rod body (2). The folding component includes sleeves (7) symmetrically and fixedly sleeved on the opposite ends of adjacent rod bodies (2). A rotating clamping plate (3) is rotatably installed on the front surface of one of the sleeves (7), and a buckle (4) for the sleeve (7) to be snap-connected is fixed on the other sleeve (7).

3. The distance measuring wheel according to claim 2, Characterized in that: Connection seats (5) are fixed on the rear surfaces of the two sleeves (7), and the two connection seats (5) are rotatably connected through a shaft.

4. The distance measuring wheel according to claim 1, Characterized in that: One end of the outer casing (20) forms an inclined handle (1), and a display screen is also installed on the outer casing (20).

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