Grounding resistance tester

Abstract

The utility model provides a grounding resistance tester, and relates to the field of grounding resistance testing. The top of the protective box body is rotationally connected with a box cover through a rotating shaft, and a rectangular box opening is formed in the left end face of the protective box body. A vibration reduction assembly is arranged in the protection box body. Through the arrangement of the damping assembly, when the outer wall of the protection box body collides with an object, through the damping effect of the damping assembly, vibration force is not liable to be transmitted to the grounding resistance tester main body, and electrical elements in the grounding resistance tester main body are prevented from being damaged. The service life of electrical elements in the grounding resistance tester is prolonged; the grounding resistance tester solves the problems that although a protection box body is arranged outside an existing grounding resistance tester, when the outer wall of the protection box body collides with an object, strong vibration force is generated, electrical elements in the grounding resistance tester are damaged, and then the service life of the electrical elements in the grounding resistance tester is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding resistance testing, in particular to a grounding resistance tester. Background Art

[0002] At present, ground resistance testers are used in the process of power detection. Ground resistance testers are instruments specially used to measure the ground resistance of grounding devices. Ground resistance testers are widely used in power, post and telecommunications, railways, communications, mining and other departments to detect the ground resistance of various devices and measure the resistance value of low-resistance conductors.

[0003] Although the current ground resistance tester is provided with a protective box on the outside, the outer wall of the ground resistance tester is in close contact with the inner wall of the protective box. Therefore, when the outer wall of the protective box collides with an object, a strong vibration force will be generated, causing damage to the internal electrical components of the ground resistance tester, thereby affecting the service life of the internal electrical components of the ground resistance tester. In addition, during the detection process of the current ground resistance tester, the cable connected to the ground resistance tester is easily dragged by people, causing damage to the cable connector and the interface on the ground resistance tester. Utility Model Content

[0004] The disclosed embodiment relates to a ground resistance tester, which, through the provision of a vibration-damping component, can, during the process of lifting the ground resistance tester, when the outer wall of the protective box collides with an object, even if a strong vibration force is generated, the vibration force is not easily transmitted to the ground resistance tester body due to the vibration-damping effect of the vibration-damping component, thereby avoiding damage to the electrical components inside the ground resistance tester body, thereby increasing the service life of the electrical components inside the ground resistance tester.

[0005] According to a first aspect of the present disclosure, a ground resistance tester is provided, which specifically includes: a protective box; a box cover is rotatably connected to the top of the protective box through a rotating shaft, and a rectangular box opening is opened on the left end face of the protective box; a vibration reduction assembly is arranged inside the protective box, and a ground resistance tester body is placed inside the vibration reduction assembly; a support shell is installed on the left side inside the protective box, and a clamping and fixing assembly is arranged on the upper end face of the support shell.

[0006] In at least some embodiments, the left end surface of the protective box body is located at the rear side of the rectangular box opening and is rotatably connected to a blocking door, and a handle is provided on the front side of the protective box body.

[0007] In at least some embodiments, the damping assembly includes a first damping plate, a second damping plate, a third damping plate, a fourth damping plate, a square sliding cylinder, a square sliding column, and a limiting slider. Four square sliding cylinders are fixedly connected to the bottom end face of the first damping plate. The number of the second damping plates, the third damping plates, and the fourth damping plates is two each. Two square sliding cylinders are fixedly connected to one side face of each second damping plate, each third damping plate, and each fourth damping plate. A square sliding column is slidably connected inside each square sliding cylinder, and a spring is installed inside each square sliding cylinder. A strip-shaped sliding opening is formed in one side face of each square sliding cylinder. A limiting slider is fixedly connected to each limiting slider, and the limiting slider is slidably connected to the strip-shaped sliding opening formed in the square sliding cylinder.

[0008] In at least some embodiments, the four square sliding columns at the bottom of the first damping plate are fixedly connected to the inner bottom end face of the protective box body. The two square sliding columns at the left part of the left second damping plate are fixedly connected to the right end face of the support shell. The two square sliding columns at the right part of the right second damping plate are fixedly connected to the inner right side face of the protective box body. The four square sliding columns on the opposite sides of the two third damping plates are respectively fixedly connected to the front and rear inner side faces of the protective box body. The four square sliding columns at the upper parts of the two fourth damping plates are fixedly connected to the inner top end face of the box cover.

[0009] In at least some embodiments, a connection cable is connected to the socket on the main body of the grounding resistance tester, and the connection cable is pressed inside the pressing and fixing assembly.

[0010] In at least some embodiments, the pressing and fixing assembly includes a rotating support block, a rotating pressing plate, a cushion block, a U-shaped clamping plate, a clamping notch, a pressing rubber pad, a rectangular through hole, and an elastic buckle. The rotating support block is fixedly installed at the rear side of the upper end face of the support shell, and the upper end of the rotating support block is rotatably connected to the rotating pressing plate through a rotating shaft. The pressing rubber pad is arranged on the bottom end face of the rotating pressing plate. The cushion block is arranged on the upper end face of the support shell, and four arc-shaped grooves are uniformly formed on the upper end face of the cushion block. The U-shaped clamping plate is fixedly connected to the upper end face of the support shell, and a clamping notch is formed at the front side of the top of the U-shaped clamping plate. Two rectangular through holes are symmetrically arranged on the front side of the upper end face of the rotating pressing plate, and an elastic buckle is slidably connected inside each rectangular through hole, and a spring is arranged inside each rectangular through hole.

[0011] In at least some embodiments, when the pressing and fixing assembly is in a pressed state, the two elastic buckles will be clamped with the clamping notch, and the bottom end face of the pressing rubber pad is in close contact with the upper side of the outer circumference of the connection cable.

[0012] The present utility model provides a grounding resistance tester, which has the following beneficial effects:

[0013] 1. Through the setting of the vibration reduction component, when the outer wall of the protective box collides with an object during the lifting and transportation of the ground resistance tester, even if a strong vibration force is generated, the vibration force is not easily transmitted to the ground resistance tester body through the vibration reduction effect of the vibration reduction component, avoiding damage to the internal electrical components of the ground resistance tester body, thereby improving the service life of the internal electrical components of the ground resistance tester.

[0014] 2. When the connecting cable is in use, the rotating pressure plate is closed so that the elastic buckle is engaged with the engaging notch. At this time, the bottom end surface of the clamping rubber pad will be in close contact with the upper side of the outer peripheral surface of the connecting cable, so that the connector end of the connecting cable can be effectively clamped and fixed. Even if someone drags the connecting cable, it will not cause damage to the connecting cable connector and the interface on the main body of the ground resistance tester, thereby improving the service life of the connecting cable connector and the interface on the main body of the ground resistance tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A structural diagram showing the overall structure of the present application;

[0019] Figure 2 A schematic diagram of the structure of the present application in a split state is shown;

[0020] Figure 3 A schematic diagram of the structure after the protective box and the supporting shell of the present application are disassembled is shown;

[0021] Figure 4 The schematic diagram of the structure of the vibration reduction assembly and the main body of the ground resistance tester of the present application is shown;

[0022] Figure 5 A schematic diagram of the structure of the vibration reduction assembly and the ground resistance tester main body of the present application is shown;

[0023] Figure 6 A schematic diagram showing the structure of the rotating pressure plate of the present application in an open state;

[0024] Figure 7 This application shows Figure 6 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0025] Reference numerals list

[0026] 1. Protective box body; 101. Box cover; 102. Support shell; 103. Door stop;

[0027] 2. Vibration reduction assembly; 201. First vibration reduction plate; 202. Second vibration reduction plate; 203. Third vibration reduction plate; 204. Fourth vibration reduction plate; 205. Square slide cylinder; 206. Square sliding column; 207. Limiting slider;

[0028] 3. Ground resistance tester body; 301. Connecting cables;

[0029] 4. Pressing and fixing assembly; 401. Rotating support block; 402. Rotating pressure plate; 403. Cushion block; 404. U-shaped clamping plate; 405. Clamping notch; 406. Pressing rubber pad; 407. Rectangular opening; 408. Elastic buckle. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example 1: Please refer to Figures 1 to 7 :

[0032] The utility model proposes a ground resistance tester, comprising: a protection box body 1; a box cover 101 is rotatably connected to the top of the protection box body 1 through a rotating shaft, and a rectangular box opening is opened on the left end face of the protection box body 1; a vibration reduction component 2 is arranged inside the protection box body 1, and a ground resistance tester main body 3 is placed inside the vibration reduction component 2; a support shell 102 is installed on the left side of the protection box body 1, and a clamping and fixing component 4 is arranged on the upper end face of the support shell 102; a baffle door 103 is rotatably connected to the left end face of the protection box body 1 at the rear side of the rectangular box opening, and a handle is arranged on the front side of the protection box body 1 for carrying the ground resistance tester.

[0033] The vibration damping assembly 2 includes a first vibration damping plate 201, a second vibration damping plate 202, a third vibration damping plate 203, a fourth vibration damping plate 204, a square slide 205, a square sliding column 206 and a limiting slider 207. Four square slides 205 are fixedly connected to the bottom end surface of the first vibration damping plate 201. The number of the second vibration damping plate 202, the third vibration damping plate 203 and the fourth vibration damping plate 204 are two, and one side of each second vibration damping plate 202, each third vibration damping plate 203 and each fourth vibration damping plate 204 is fixedly connected to two square slides 205; a square sliding column 206 is slidably connected inside each square slide 205, and a spring is installed inside each square slide 205, a strip sliding opening is opened on one side of each square slide 205, and a limiting slider 207 is fixedly connected to each limiting slider 207. The limiting slider 207 is slidably connected with the strip sliding opening on the square slide 205; the four square sliding columns 206 at the bottom of the first vibration damping plate 201 are fixedly connected to the bottom end surface inside the protective box 1, the two square sliding columns 206 on the left part of the second vibration damping plate 202 on the left side are fixedly connected to the right end surface of the support shell 102, and the two square sliding columns 206 on the right part of the second vibration damping plate 202 on the right side are fixedly connected to the right side surface inside the protective box 1; the four square sliding columns 206 on the opposite sides of the two third vibration damping plates 203 are respectively fixedly connected to the front and rear side surfaces inside the protective box 1; the four square sliding columns 206 on the upper parts of the two fourth vibration damping plates 204 are fixedly connected to the top end surface inside the box cover 101; through the setting of the vibration damping assembly 2, the ground resistance tester main body 3 can obtain effective vibration reduction effect inside the protective box 1.

[0034] The socket on the ground resistance tester body 3 is connected with a connection cable 301 , and the connection cable 301 is pressed against the inner side of the pressing and fixing assembly 4 , so that the connection cable 301 can be effectively pressed and fixed.

[0035] Embodiment 2, based on embodiment 1, as Figure 1 , Figure 6 and Figure 7As shown in the figure, the pressing and fixing component 4 includes a rotating support block 401, a rotating pressing plate 402, a cushion block 403, a U-shaped clamping plate 404, a clamping notch 405, a pressing rubber pad 406, a rectangular through-hole 407 and an elastic buckle 408. The rotating support block 401 is fixedly installed at the rear side of the upper end surface of the support housing 102, and the upper end of the rotating support block 401 is rotatably connected to the rotating pressing plate 402 through a rotating shaft; a pressing rubber pad 406 is arranged on the bottom end surface of the rotating pressing plate 402; the cushion block 403 is arranged on the upper end surface of the support housing 102, and four arc-shaped grooves are evenly arranged on the upper end surface of the cushion block 403; the U-shaped clamping plate 404 is fixedly connected to the upper end surface of the support housing 102, and a clamping notch 405 is arranged at the front side of the top of the U-shaped clamping plate 404; two rectangular through-holes 407 are symmetrically arranged on the front side of the upper end surface of the rotating pressing plate 402 from left to right, and an elastic buckle 408 is slidably connected inside each rectangular through-hole 407, and a spring is arranged inside each rectangular through-hole 407; when the pressing and fixing component 4 is in a pressing state, the two elastic buckles 408 will be clamped with the clamping notch 405, and the bottom end surface of the pressing rubber pad 406 is in close contact with the upper side of the outer circumference of the connecting cable 301; through the arrangement of the pressing and fixing component 4, it is used to press and fix the joint end of the connecting cable 301 to prevent it from being dragged by the staff to the joint.

[0036] The working principle of this embodiment: When in use, the connecting cable 301 is stored inside the support housing 102, then the shutter 103 is closed, and then the grounding resistance tester is carried to the grounding resistance test site by the handle on the front side of the protective box 1. During the process of carrying the grounding resistance tester, when the outer wall of the protective box 1 collides with an object, even if a strong vibration force is generated, through the vibration damping effect of the vibration damping component 2, the vibration force is not easily transmitted to the grounding resistance tester main body 3, avoiding damage to the electrical components inside the grounding resistance tester main body 3.

[0037] After arriving at the grounding resistance test site, then the lid 101 and the shutter 103 are opened, then the connecting cable 301 stored inside the support housing 102 is taken out and inserted into the socket on the grounding resistance tester main body 3, and then the rotating pressing plate 402 is closed, so that the elastic buckle 408 is clamped with the clamping notch 405, so that the rotating pressing plate 402 obtains an effective limiting effect, and at this time the bottom end surface of the pressing rubber pad 406 will be in close contact with the upper side of the outer circumference of the connecting cable 301, so that the joint end of the connecting cable 301 can obtain an effective pressing and fixing effect, so that even if someone drags the connecting cable 301, it will not cause damage to the joint of the connecting cable 301 and the interface on the grounding resistance tester main body 3, thereby improving the service life of the joint of the connecting cable 301 and the interface on the grounding resistance tester main body 3.

[0038] In this article, the following points need attention:

[0039] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0040] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0041] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A ground resistance tester, comprising: A protective box (1); the top of the protective box (1) is rotatably connected to a box cover (101) via a rotating shaft, and a rectangular box opening is opened on the left end face of the protective box (1); it is characterized in that a vibration reduction component (2) is arranged inside the protective box (1), and a ground resistance tester body (3) is placed inside the vibration reduction component (2); a support shell (102) is installed on the left side inside the protective box (1), and a clamping and fixing component (4) is arranged on the upper end face of the support shell (102).

2. A ground resistance tester according to claim 1, characterized in that: The left end surface of the protective box body (1) is located at the rear side of the rectangular box opening and is rotatably connected to a blocking door (103), and a handle is arranged on the front side of the protective box body (1).

3. A ground resistance tester according to claim 1, characterized in that: The vibration damping assembly (2) comprises a first vibration damping plate (201), a second vibration damping plate (202), a third vibration damping plate (203), a fourth vibration damping plate (204), a square slide cylinder (205), a square sliding column (206) and a limiting sliding block (207); the bottom end surface of the first vibration damping plate (201) is fixedly connected to four square slide cylinders (205); the number of the second vibration damping plate (202), the third vibration damping plate (203) and the fourth vibration damping plate (204) are all two, and each second vibration damping plate (202), Two square slides (205) are fixedly connected to one side of each third vibration damping plate (203) and each fourth vibration damping plate (204); a square slide column (206) is slidably connected inside each of the square slides (205), and a spring is installed inside each of the square slides (205); a strip-shaped sliding opening is opened on one side of each of the square slides (205); and each of the limit sliders (207) is fixedly connected to a limit slider (207) slidably connected to the strip-shaped sliding opening opened on the square slide (205).

4. A ground resistance tester according to claim 3, characterized in that: The four square sliding columns (206) at the bottom of the first vibration damping plate (201) are fixedly connected to the bottom end surface of the protection box (1); the two square sliding columns (206) at the left part of the second vibration damping plate (202) on the left side are fixedly connected to the right end surface of the support shell (102); the two square sliding columns (206) at the right part of the second vibration damping plate (202) on the right side are fixedly connected to the right side surface of the protection box (1); the four square sliding columns (206) at the opposite sides of the two third vibration damping plates (203) are respectively fixedly connected to the front and rear side surfaces of the protection box (1); and the four square sliding columns (206) at the upper parts of the two fourth vibration damping plates (204) are fixedly connected to the top end surface of the box cover (101).

5. A ground resistance tester according to claim 1, characterized in that: A connection cable (301) is connected to the socket on the ground resistance tester body (3), and the connection cable (301) is pressed tightly against the inner side of the pressing and fixing assembly (4).

6. A ground resistance tester according to claim 5, characterized in that: The pressing and fixing assembly (4) includes a rotating support block (401), a rotating pressing plate (402), a cushion block (403), a U-shaped clamping plate (404), a clamping notch (405), a pressing rubber pad (406), a rectangular through-hole (407) and an elastic buckle (408). The rotating support block (401) is fixedly installed on the rear side of the upper end surface of the support housing (102), and the upper end of the rotating support block (401) is rotatably connected to the rotating pressing plate (402) through a rotating shaft; a pressing rubber pad (406) is arranged on the bottom end surface of the rotating pressing plate (402); the cushion block (403) is arranged on the upper end surface of the support housing (102), and four arc-shaped grooves are evenly formed on the upper end surface of the cushion block (403); the U-shaped clamping plate (404) is fixedly connected to the upper end surface of the support housing (102), and a clamping notch (405) is formed on the front side of the top of the U-shaped clamping plate (404); two rectangular through-holes (407) are symmetrically arranged on the front side of the upper end surface of the rotating pressing plate (402) from left to right, and an elastic buckle (408) is slidably connected to each of the rectangular through-holes (407), and a spring is arranged in each of the rectangular through-holes (407).

7. A ground resistance tester according to claim 6, characterized in that: When the pressing and fixing assembly (4) is in a pressing state, the two elastic buckles (408) will be clamped with the clamping notch (405), and the bottom end surface of the pressing rubber pad (406) is in close contact with the upper side of the outer circumference of the connecting cable (301).

Images