Braking assembly and potential gradient measuring device

Abstract

The utility model discloses a brake assembly and a potential gradient measurement device, and relates to the technical field of potential gradient measurement, and the brake assembly comprises a moving unit which comprises a moving frame and wheels rotatably arranged at the bottom of the moving frame; the measuring unit comprises a detection piece arranged at the front end of the moving frame, a detection end arranged below the detection piece and an electric push rod arranged between the detection piece and the detection end; the electric push rod penetrates through the connecting through hole, the mounting frame is fixedly mounted on the moving frame, and the brake pieces are located on the outer sides of the wheels. The beneficial effects of the utility model are that the wheel type range finder moves along the marking line between the two detection points, the voltage of two points can be measured, the distance between the two points can be measured, the potential gradient of the two points can be calculated, and the structure can prevent the potential gradient of the two points from being damaged in the conventional detection process. A worker continuously corrects the alignment condition of the measuring tape and the horizontal line, and the working efficiency can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of potential gradient measurement, especially a stop component and potential gradient measuring device. BACKGROUND

[0002] The potential gradient of the grounding device is measured to evaluate the performance of the grounding system, ensure that it can effectively guide the fault current to the ground when a grounding fault occurs, and protect personal safety and normal operation of equipment. The conventional testing method relies on manual measurement and recording, using a tape measure to measure the distance on the ground, then using a voltage measuring device to measure the potential of each point relative to the reference point, and finally calculating the potential gradient.

[0003] In the conventional detection method, a tape measure is generally used for measurement, and a worker pulls out the tape measure along the horizontal line on the wall surface. During the pulling process, the distance between the measurement point and the reference point is far, and the tape measure has no resistance during the pulling process. Therefore, the worker will pull out too much at one time, causing the tape measure to sag due to gravity, resulting in inaccurate detection data between the two points. Moreover, during the detection, the worker needs to constantly correct the alignment of the tape measure with the horizontal line due to the softness of the extended part of the tape measure, which seriously affects the worker's work efficiency. SUMMARY

[0004] In view of the above technical problems of the prior art, the utility model is proposed.

[0005] The utility model aims to provide a stop component, which aims to solve the problem that the tape measure has no stretching resistance, causing the worker to pull out too much at one time, and the sagging of the tape measure during the measurement process affecting the detection accuracy.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: a stop component, comprising a mounting unit, including a mounting frame, a brake piece rotatably connected to the mounting frame, and a connecting through hole opened at the top of the brake piece;

[0007] The brake piece comprises a brake block rotatably arranged on the inner side of the mounting frame, and a rubber plate arranged on the inner wall of the brake block.

[0008] A torsional spring is arranged between the mounting frame and the brake piece.

[0009] As a preferred scheme of the stop component of the utility model, the mounting frame comprises a fixed block, and a connecting rod arranged at the end of the fixed block.

[0010] The number of connecting rods is two, the bottom ends of the two connecting rods are bent, and the directions of the two connecting rods are the same.

[0011] As a preferred scheme of the utility model brake stop component, wherein: the rubber plate's inside is equipped with a plurality of antiskid groove.

[0012] As a preferred scheme of the utility model brake stop component, wherein: the connecting rod's bottom end is provided with a supporting leg.

[0013] The utility model brake stop component's beneficial effect is: through setting brake block in the outside of the stretch-out piece or the advancing wheel, through gently pressing or treading, give the stretch-out piece or the advancing wheel a slight resistance, can reduce the stretch-out speed of stretch-out piece or the advancing speed of advancing wheel, can effectively prevent the problem of the inaccuracy of detection data caused by the stretch-out speed of stretch-out piece or the advancing speed of advancing wheel being too fast in the detection process.

[0014] The utility model discloses a potential gradient measuring device, which aims to solve the problem that the stretch-out part of a tape measure is soft, workers need to constantly correct the alignment of the tape measure with a horizontal line, and the working efficiency of workers is seriously affected.

[0015] To solve the above technical problems, the utility model provides the following technical scheme: a potential gradient measuring device, comprising a moving unit, a moving frame, and a wheel rotatably arranged at the bottom of the moving frame.

[0016] A measuring unit comprises a detection piece arranged at the front end of the moving frame, a probe end arranged below the detection piece, and an electric push rod arranged between the detection piece and the probe end.

[0017] The electric push rod penetrates through the connecting through hole, the mounting frame is fixedly installed on the moving frame, the brake piece is located on the outside of the wheel, and the extension end of the electric push rod is provided with a limiting ring.

[0018] As a preferred scheme of the utility model potential gradient measuring device, wherein: the bottom end of the moving frame and located on the outside of the wheel is provided with a pointing arrow, and the bottom of the pointing arrow does not contact the ground.

[0019] As a preferred scheme of the utility model potential gradient measuring device, wherein: the brake piece does not contact the wheel in the normal state.

[0020] As a preferred scheme of the utility model potential gradient measuring device, wherein: the limiting ring is always located above the brake piece.

[0021] As a preferred scheme of the utility model potential gradient measuring device, wherein: the outer diameter of the electric push rod telescopic section is smaller than the inner diameter of the connecting through hole.

[0022] As a preferred scheme of the potential gradient measuring device, the two supporting legs, the moving frame and the wheels form a triangular support.

[0023] The potential gradient measuring device has the advantages that the wheel type range finder moves along the mark line between the two detection points, the distance between the two points can be measured while the voltages of the two points are measured, and the potential gradient of the two points is calculated, so that the situation that the worker continuously corrects the alignment of the tape and the horizontal line in the conventional detection process is prevented, and the work efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 It is a structural schematic view of the brake assembly.

[0026] Figure 2 It is a structural schematic view of the potential gradient measuring device.

[0027] Figure 3 It is a structural schematic view of the moving unit.

[0028] Figure 4 It is a structural schematic view of the measuring unit. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0030] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from the description, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0031] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor does it mean an embodiment that is separate or selectively excluded from other embodiments.

[0032] Embodiment 1

[0033] Reference Figure 1 For the first embodiment of the utility model, this embodiment provides a stop assembly, including installation unit 300, including mounting bracket 301, set up in the rotating connection of mounting bracket 301 brake piece 302, and the connecting through hole 303 set up in the top of brake piece 302;

[0034] Brake piece 302 includes rotatingly arranged brake block 302a in the inner side of mounting bracket 301, and rubber plate 302b arranged on the inner wall of brake block 302a.

[0035] Torsion spring is arranged between mounting bracket 301 and brake piece 302.

[0036] Further, mounting bracket 301 includes fixed block 301a, connecting rod 301b arranged at the end of fixed block 301a;

[0037] The number of connecting rod 301b is two, the bottom end of the two connecting rods 301b is bent, and the two connecting rods 301b point in the same direction.

[0038] Further, the inner side of rubber plate 302b is provided with a plurality of anti-skid grooves.

[0039] It should be noted that mounting bracket 301 is welded or integrally injection molded by fixed block 301a and connecting rod 301b, through hole is arranged on fixed block 301a, which can be connected with mobile device, brake block 302a is rotatably installed on connecting rod 301b after normal installation, and is located on the outer side of traveling wheel, rubber plate 302b is further fixed on the inner side of brake block 302a, when stopping, the characteristics of large friction of rubber plate 302b can realize fast stopping.

[0040] When using, fixed block 301a is fixed above traveling wheel, brake block 302a is arranged on the outer side of traveling wheel, when using, brake block 302a can be gently pressed or stepped, which can give traveling wheel certain resistance, can reduce the traveling speed of traveling wheel, and further make the detection data more accurate, when stopping, brake block 302a is pressed or stepped downward, brake block 302a rotates on connecting rod 301b, the lower half of brake block 302a is pasted on traveling wheel when rotating, which realizes the effect of fast stopping.

[0041] When the application is applied to the tape measure, the user can press the brake block 302a during the pulling process of the tape measure, and give the tape measure a squeezing force, so that the tape measure is subjected to a certain friction force during the pulling process, which can prevent the tape measure from being pulled out too much at one time due to excessive force, causing the measuring part of the tape measure to bend. When it is necessary to stop, press the brake block 302a with force to achieve the effect of rapid stopping by using the characteristics of rubber friction.

[0042] In summary, by setting the brake block 302a outside the extending member or the traveling wheel, a slight resistance is given to the extending member or the traveling wheel by gently pressing or stepping, which can reduce the extending speed of the extending member or the traveling speed of the traveling wheel, effectively preventing the problem of inaccurate detection data caused by the excessive extending speed of the extending member or the excessive traveling speed of the traveling wheel during detection.

[0043] Embodiment 2

[0044] Reference Figure 2 - Figure 4 In the second embodiment of the present application, the embodiment further provides a potential gradient measuring device, which comprises a moving unit 100, a moving frame 101, and a wheel 102 rotatably arranged at the bottom of the moving frame 101.

[0045] A measuring unit 200, comprising a detection member 201 arranged at the front end of the moving frame 101, a probe end 202 arranged below the detection member 201, and an electric push rod 203 arranged between the detection member 201 and the probe end 202.

[0046] The electric push rod 203 penetrates through the connecting through hole 303, the mounting frame 301 is fixedly installed on the moving frame 101, the brake member 302 is located outside the wheel 102, and the extension end of the electric push rod 203 is provided with a limiting ring 204.

[0047] It should be noted that the moving unit 100 is specifically a wheel type range finder, which is composed of the moving frame 101 and the wheel 102 rotatably installed at the bottom thereof, the detection member 201 in the measuring unit 200 is specifically a voltage measuring instrument, the probe end 202 is specifically a voltage measuring probe, the extension end of the electric push rod 203 can drive the probe end 202 to move vertically, and the electric push rod 203 penetrates through the connecting through hole 303.

[0048] Further, the bottom end of the moving frame 101 and located outside the wheel 102 is provided with a pointing arrow, and the bottom of the pointing arrow does not contact the ground.

[0049] Further, the brake member 302 does not contact the wheel 102 in the normal state.

[0050] Further, the limiting ring 204 is always above the brake 302, and the outer diameter of the telescopic section of the electric push rod 203 is smaller than the inner diameter of the connecting through hole 303.

[0051] It should be noted that the limiting ring 204 on the electric push rod 203 can push the brake 302 to rotate when the electric push rod 203 is extended, and the pointing arrow can always point to the mark line when the wheel 102 rolls, preventing the wheel 102 from rotating and causing the measurement path to deviate.

[0052] In use, the hand-held moving frame 101 is moved forward to drive the wheel 102 to rotate, and the moving unit 100 composed of the moving frame 101 and the wheel 102 is a kind of wheel type range finder, so that the distance traveled by the wheel 102 can be detected when the wheel 102 rotates, and the electric push rod 203 is extended, the detection end 202 does not touch the ground, the electric push rod 203 drives the brake 302 to slightly touch the wheel 102, providing appropriate resistance to the wheel 102, when the wheel 102 is at the first detection point, the electric push rod 203 is extended to drive the detection end 202 to touch the ground, and the voltage of the first detection point is detected, then the electric push rod 203 is reset, the moving frame 101 is continuously pushed, and the wheel 102 rolls along the mark line to the second detection point, the electric push rod 203 is extended again, the detection end 202 touches the ground, and the voltage of the second detection point is detected, and then the voltages of the two detection points are measured

[0053] In summary, the wheel type range finder is moved along the mark line between the two detection points, the distance between the two points is measured while the voltages of the two points are measured, and the potential gradient of the two points is calculated, which can prevent the worker from constantly correcting the alignment of the tape and the horizontal line in the conventional detection process, and can greatly improve the work efficiency.

[0054] Embodiment 3

[0055] Reference Figure 2 - Figure 4 This is a third embodiment based on the second embodiment of the utility model, and the bottom end of the connecting rod 301b is provided with a support leg 304, and a triangular support is formed between the two support legs 304, the moving frame 101 and the wheel 102.

[0056] It should be noted that the support legs 304 are fixedly arranged on both sides of the moving frame 101 and do not contact the ground, and when placed, the support legs 304, the moving frame 101 and the wheel 102 form a triangular support, the lowest point of the support leg 304 and the lowest point of the wheel 102 contact the ground, forming the bottom side of the triangle, and providing support for the entire device.

[0057] In use, by slightly tilting the left or right leg 304, when the lowest point of one of the legs 304 comes into contact with the ground, the lowest point of the leg 304 and the lowest point of the wheel 102 form the base of a triangle, providing support to the entire device.

[0058] In summary, the lowest point of the leg 304 and the lowest point of the wheel 102 form the base of a triangle, providing support to the entire device, and can solve the problem of needing to lean the device against the wall of an elevator after measurement, the wall of the elevator being relatively smooth, and the device falling along the wall, causing damage.

[0059] It is important to note that the above embodiments are merely used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A brake assembly, characterized in that: include, The mounting unit (300) comprises a mounting frame (301), a brake member (302) rotatably connected to the mounting frame (301), and a connecting through hole (303) provided on the top of the brake member (302); The brake member (302) comprises a brake block (302a) rotatably arranged on the inner side of the mounting frame (301), and a rubber plate (302b) arranged on the inner wall of the brake block (302a); A torsion spring is provided between the mounting frame (301) and the brake member (302).

2. The brake assembly according to claim 1, wherein: The mounting frame (301) comprises a fixing block (301a) and a connecting rod (301b) arranged at the end of the fixing block (301a); There are two connecting rods (301b), the bottom ends of the two connecting rods (301b) are bent, and the two connecting rods (301b) point in the same direction.

3. The brake assembly according to claim 1 or 2, characterized in that: A plurality of anti-slip grooves are provided on the inner side of the rubber plate (302b).

4. The brake assembly according to claim 2, wherein: The bottom end of the connecting rod (301b) is provided with a supporting leg (304).

5. A potential gradient measuring device, characterized in that: The brake assembly according to claim 4, and: A mobile unit (100) includes a mobile frame (101) and wheels (102) rotatably arranged at the bottom of the mobile frame (101); A measuring unit (200) comprising a detection member (201) disposed at the front end of the movable frame (101), a detection end (202) disposed below the detection member (201), and an electric push rod (203) disposed between the detection member (201) and the detection end (202); The electric push rod (203) passes through the connecting through hole (303), the mounting frame (301) is fixedly mounted on the mobile frame (101), the brake member (302) is located outside the wheel (102), and a limiting ring (204) is provided at the extended end of the electric push rod (203).

6. The potential gradient measuring device according to claim 5, wherein: A directional arrow is provided at the bottom end of the mobile frame (101) and outside the wheel (102), and the bottom of the directional arrow does not contact the ground.

7. The potential gradient measuring device according to claim 6, wherein: The brake member (302) does not contact the wheel (102) in a normal state.

8. The potential gradient measuring device according to claim 5, wherein: The limiting ring (204) is always located above the brake component (302).

9. The potential gradient measuring device according to claim 7 or 8, characterized in that: The outer diameter of the telescopic section of the electric push rod (203) is smaller than the inner diameter of the connecting through hole (303).

10. The potential gradient measuring device according to claim 5, wherein: A triangular support is formed between the two supporting legs (304), the mobile frame (101) and the wheels (102).

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