Grounding resistance tester for fire fighting

Abstract

The invention provides a fire-fighting grounding resistance tester, and relates to the technical field of grounding resistance testers, the fire-fighting grounding resistance tester comprises a tester body, the left and right sides of the tester body are respectively provided with a hammering frame and a side support frame, the lower part of the tester body is provided with a lower support plate, and the end part of the lower support plate is fixedly provided with a C-shaped support; two second springs are fixedly installed between the top of the lower supporting plate and the lower portion of the tester body, the tip end of the testing needle is inserted into the ground, then the hammering frame is detached, the hammering frame slides down from the outside of the fixing frame through the inner sliding rail, the annular hammering frame at the end of the hammering frame is used for knocking the end of the testing needle, and then the testing needle is tested. And then the tester body is adopted to carry out resistance testing, the tester body is designed to be capable of loading the test needle, and when the test needle is installed, an external tool is not needed, and the hammering frame is directly adopted to carry out installation, so that the use convenience of the tester body is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of ground resistance testers, and more specifically, particularly relates to a ground resistance tester for fire fighting. Background Art

[0002] In the work related to resistance testing, the traditional tester and its matching test needles have many inconveniences in use and carrying.

[0003] The installation method of the test needle of a traditional tester is usually complicated and requires the use of external tools for installation. The operation is cumbersome and greatly reduces the convenience of using the tester.

[0004] When carrying the test needle, it is often impossible to effectively integrate it with the tester body, and the test needle needs to be stored and carried separately, which not only easily causes the test needle to be lost, but also brings inconvenience to actual use and reduces the overall portability.

[0005] For the installation of multiple test pins, it is difficult to achieve efficient layout with the traditional method, resulting in a limited number of test pins that cannot meet actual needs.

[0006] Moreover, when taking the test needle, the structural design of the traditional tester is not reasonable enough, which makes the taking process difficult and affects the work efficiency.

[0007] In addition, when the traditional tester is placed on the ground for use, it is impossible to set a reasonable tilt according to ergonomics, which makes it inconvenient for users to view the test results on the screen, affecting the comfort of use and work efficiency. Summary of the invention

[0008] In order to solve the above technical problems, the present invention provides a ground resistance tester for fire fighting to solve the above problems.

[0009] A ground resistance tester for fire fighting, comprising a tester body, wherein a hammer frame and a side support frame are respectively arranged on the left and right sides of the tester body, a lower support plate is arranged below the tester body, a C-shaped bracket is fixedly installed on the end of the lower support plate, two second springs are fixedly installed between the top of the lower support plate and the bottom of the tester body, at least two test pins are arranged between the tester body and the lower support plate, and the end of each test pin is inserted into the C-shaped bracket, a straight surface is opened at the outer end of the test pin, and a rectangular slot is opened at the bottom of the tester body close to the side of the C-shaped bracket.

[0010] Preferably, a fixing frame is fixedly installed on the left side wall of the tester body, an inner slide rail is opened on the side wall of the hammer frame, and the hammer frame is mounted outside the fixing frame through the inner slide rail. An annular hammer frame is fixedly installed on the end of the hammer frame, and the side support frame is fixedly connected to the side wall of the tester body, and a front end support frame is fixedly installed on the end of the tester body facing the annular hammer frame, and an arc-shaped support frame is arranged above the front end support frame.

[0011] Preferably, at least two first springs are fixedly installed between the bottom of the arc-shaped support frame and the front-end support frame, and the arc-shaped support frame is inclined toward the tester body, and two magnetic circular grooves are provided at the bottom of the tester body. The two second springs are close to the side of the lower support plate, and two third springs are fixedly installed above the lower support plate near the other side wall, and the first magnetic block is fixedly installed on the top of the two third springs.

[0012] Preferably, each of the first magnetic blocks is magnetically inserted in a magnetic circular groove, and a second magnetic block is fixedly installed on the outer ring of each of the first magnetic blocks, and each of the second magnetic blocks is magnetically attracted to the bottom of the tester body. An arc-shaped slot is penetrated through the side wall of the C-shaped bracket, and at least two rubber strips are fixedly installed on the surface of the lower support plate. A rubber support pad is fixedly installed under the tester body, and the rubber support pad is close to one side of the first spring. The end of the test needle is inserted in the arc-shaped slot opened in the C-shaped bracket, and the outer end of the test needle is clamped on the first spring and the straight surface, and the rubber strip is located between the two test needles.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, multiple test pins between the tester body and the lower support plate are removed, and then the tester body is placed on the ground, the tips of the test pins are inserted into the ground, and then the hammer frame is disassembled, and the hammer frame slides from the outside of the fixed frame through the inner slide rail, and the annular hammer frame at the end of the hammer frame is used to knock the ends of the test pins, and then the tester body is used to perform resistance testing. By designing the tester body to be able to load the test pins, and when installing the test pins, there is no need to use external tools, and the hammer frame can be directly used for installation, which greatly improves the convenience of using the tester body.

[0015] In the present invention, the test needle is inserted between the tester body and the lower support plate, the end of the test needle is inserted into the arc-shaped slot opened by the C-shaped bracket, and then the other end of the test needle is clamped on the first spring and the arc-shaped support bracket. At this time, the test needle is installed, and the tester body can carry multiple test needles well. There is no need to carry the test needles separately, which greatly improves the overall portability.

[0016] In the present invention, when installing multiple test needles, every two test needles are separated by a rubber strip, and the surface of the rubber strip is in an inclined state. Therefore, the rubber strip can make the test needles in an inclined state, so that more test needles can be placed between the tester body and the lower support plate, greatly improving the load-bearing capacity.

[0017] In the present invention, by pulling one side of the lower support plate downward, the lower support plate is subjected to force to drive the two first magnetic blocks to leave the magnetic circular grooves, and at the same time the second magnetic block is separated from the lower surface of the tester body. At this time, the user can pull the test needle outward, and the outward movement of the test needle drives the arc-shaped support frame to move downward. The downward movement of the arc-shaped support frame drives the first spring to compress and deform. At this time, the test needle is successfully taken out. By designing the lower support plate and the tester body to be detachable, it is convenient for the user to take the test needle, which greatly improves the convenience of use.

[0018] In the present invention, when the tester body is placed on the ground, the lower support plate contacts the ground, and at the same time the tester body compresses the second spring and the third spring downward, and the C-shaped bracket at the end of the lower support plate is inserted into the rectangular slot provided in the tester body, and then the rubber support pad fits with the upper surfaces of the multiple rubber strips, and the tester body is in an inclined state. The tester body in the inclined state is more convenient for the user to watch the screen, thereby improving the comfort of the user in watching the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the tester body of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the hammer frame of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the lower support plate of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the C-shaped bracket of the present invention;

[0023] Figure 5 is a schematic diagram of the third spring structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the test needle of the present invention.

[0025] In the figure, the correspondence between the component names and the figure numbers is: 1. Tester body; 11. Fixed frame; 12. Hammer frame; 13. Inner slide rail; 14. Annular hammer frame; 15. Magnetic circular groove; 16. Rubber support pad; 17. Rectangular slot; 18. Front support frame; 19. Arc support frame; 2. First spring; 21. Lower support plate; 22. Second spring; 23. C-shaped bracket; 24. Arc slot; 25. Third spring; 26. First magnetic block; 27. Second magnetic block; 28. Test needle; 29. ​​Straight surface; 3. Inclined surface; 31. Rubber strip; 32. Side support frame. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] See also Figure 1-Figure 6 The present invention provides a ground resistance tester for fire fighting, comprising a tester body 1, a hammer frame 12 and a side support frame 32 are respectively arranged on the left and right sides of the tester body 1, a lower support plate 21 is arranged below the tester body 1, a C-shaped bracket 23 is fixedly installed at the end of the lower support plate 21, and two second springs 22 are fixedly installed between the top of the lower support plate 21 and the bottom of the tester body 1. The tip of the test needle 28 is inserted into the ground, and then the hammer frame 12 is disassembled, and the hammer frame 12 slides off from the outside of the fixed frame 11 through the inner slide rail 13. The annular hammer frame 14 at the end of the hammer frame 12 strikes the end of the test pin 28, and then the tester body 1 is used to perform a resistance test. The tester body 1 is designed to be able to load the test pin 28, and when installing the test pin 28, no external tools are required. At least two test pins 28 are arranged between the tester body 1 and the lower support plate 21, and the end of each test pin 28 is inserted into the C-shaped bracket 23. A straight surface 29 is provided at the outer end of the test pin 28, and a rectangular slot 17 is provided at the bottom of the tester body 1 close to the side of the C-shaped bracket 23.

[0028] A fixing frame 11 is fixedly installed on the left side wall of the tester body 1, an inner slide rail 13 is opened on the side wall of the hammer frame 12, and the hammer frame 12 is sleeved outside the fixing frame 11 through the inner slide rail 13. An annular hammer frame 14 is fixedly installed on the end of the hammer frame 12, and a side support frame 32 is fixedly connected to the side wall of the tester body 1, and a front end support frame 18 is fixedly installed on the end of the tester body 1 facing the annular hammer frame 14. An arc support frame 19 is arranged above the front end support frame 18, and the lower support plate 21 is driven by force to drive the two first magnetic blocks 26 to leave the magnetic circular groove 15, and at the same time, the second magnetic block 27 is separated from the lower surface of the tester body 1. At this time, the user can pull the test needle 28 outward, and the test needle 28 moves outward to drive the arc The arc support frame 19 moves downward, and the downward movement of the arc support frame 19 drives the first spring 2 to compress and deform. At this time, the test needle 28 is successfully taken out. By designing the lower support plate 21 and the tester body 1 to be detachable, it is convenient for the user to take the test needle 28. At least two first springs 2 are fixedly installed between the bottom of the arc support frame 19 and the front end support frame 18, and the arc support frame 19 is inclined toward the tester body 1. Two magnetic circular grooves 15 are provided at the bottom of the tester body 1, and the two second springs 22 are close to the side of the lower support plate 21. Two third springs 25 are fixedly installed on the top of the lower support plate 21 near the other side wall, and the tops of the two third springs 25 are fixedly installed with first magnetic blocks 26.

[0029] Each first magnetic block 26 is magnetically inserted into the magnetic circular groove 15, and the outer ring of each first magnetic block 26 is fixedly installed with a second magnetic block 27, and each second magnetic block 27 is magnetically attracted to the bottom of the tester body 1. The side wall of the C-shaped bracket 23 is penetrated with an arc-shaped slot 24, and at least two rubber strips 31 are fixedly installed on the surface of the lower support plate 21. A rubber support pad 16 is fixedly installed under the tester body 1, and the rubber support pad 16 is close to one side of the first spring 2. The user inserts the test needle 28 between the tester body 1 and the lower support plate 21 to test The end of the needle 28 is inserted into the arc-shaped slot 24 opened in the C-shaped bracket 23, and then the other end of the test needle 28 is clamped on the first spring 2 and the arc-shaped support frame 19. At this time, the test needle 28 is installed, and the tester body 1 can carry multiple test needles 28 well. There is no need to carry the test needles 28 separately, which greatly improves the overall portability. The end of the test needle 28 is inserted into the arc-shaped slot 24 opened in the C-shaped bracket 23, and the outer end of the test needle 28 is clamped on the first spring 2 and the straight surface 29, and the rubber strip 31 is located between the two test needles 28.

[0030] Working principle:

[0031] In the first step, when using the tester body 1 for a grounding test, the user removes the multiple test pins 28 between the tester body 1 and the lower support plate 21, then places the tester body 1 on the ground, inserts the tip of the test pin 28 into the ground, then removes the hammer frame 12, and the hammer frame 12 slides off the outside of the fixed frame 11 through the inner slide rail 13, and uses the annular hammer frame 14 at the end of the hammer frame 12 to knock the end of the test pin 28, and then uses the tester body 1 to perform a resistance test. By designing the tester body 1 to be able to load the test pin 28, and when installing the test pin 28, there is no need to use external tools, and the hammer frame 12 is directly used for installation, which greatly improves the convenience of using the tester body 1.

[0032] In the second step, when carrying the tester body 1 outside, the user inserts the test needle 28 between the tester body 1 and the lower support plate 21, inserts the end of the test needle 28 into the arc-shaped slot 24 provided in the C-shaped bracket 23, and then clamps the other end of the test needle 28 on the first spring 2 and the arc-shaped support bracket 19. At this time, the test needle 28 is installed, and the tester body 1 can carry multiple test needles 28 well, and there is no need to carry the test needle 28 separately, which greatly improves the overall portability;

[0033] When installing multiple test needles 28, every two test needles 28 are separated by a rubber strip 31. The surface of the rubber strip 31 is in an inclined state, so the rubber strip 31 can make the test needles 28 in an inclined state, so that more test needles 28 can be placed between the tester body 1 and the lower support plate 21, greatly improving the load-bearing capacity.

[0034] In the third step, when taking the test needle 28, the user pulls one side of the lower support plate 21 downward, and the lower support plate 21 is forced to drive the two first magnetic blocks 26 to leave the magnetic circular groove 15, and at the same time, the second magnetic block 27 is separated from the lower surface of the tester body 1. At this time, the user can pull the test needle 28 outward, and the test needle 28 moves outward to drive the arc support frame 19 to move downward, and the arc support frame 19 moves downward to drive the first spring 2 to compress and deform. At this time, the test needle 28 is successfully taken. By designing the lower support plate 21 and the tester body 1 to be detachable, it is convenient for the user to take the test needle 28, which greatly improves the convenience of use;

[0035] When the tester body 1 is placed on the ground, the lower support plate 21 contacts the ground, and at the same time, the tester body 1 compresses the second spring 22 and the third spring 25 downward, and the C-shaped bracket 23 at the end of the lower support plate 21 is inserted into the rectangular slot 17 opened in the tester body 1, and then the rubber support pad 16 fits with the upper surface of the multiple rubber strips 31, and the tester body 1 is in a tilted state. The tilted tester body 1 is more convenient for the user to watch the screen, thereby improving the comfort of the user in watching the test results.

[0036] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A ground resistance tester for fire fighting, comprising a tester body (1), characterized in that: A hammer frame (12) and a side support frame (32) are respectively arranged on the left and right sides of the tester body (1); a lower support plate (21) is arranged below the tester body (1); a C-shaped bracket (23) is fixedly installed at the end of the lower support plate (21); two second springs (22) are fixedly installed between the top of the lower support plate (21) and the bottom of the tester body (1); at least two test pins (28) are arranged between the tester body (1) and the lower support plate (21); and the end of each test pin (28) is inserted into the C-shaped bracket (23); a straight surface (29) is provided at the outer end of the test pin (28); and a rectangular slot (17) is provided below the tester body (1) on the side close to the C-shaped bracket (23).

2. A ground resistance tester for fire fighting as claimed in claim 1, characterized in that: A fixing frame (11) is fixedly mounted on the left side wall of the tester body (1), an inner slide rail (13) is provided on the side wall of the hammer frame (12), and the hammer frame (12) is sleeved outside the fixing frame (11) via the inner slide rail (13).

3. A ground resistance tester for fire fighting as claimed in claim 2, characterized in that: An annular hammer frame (14) is fixedly mounted on the end of the hammer frame (12), and the side support frame (32) is fixedly connected to the side wall of the tester body (1).

4. A ground resistance tester for fire fighting as claimed in claim 3, characterized in that: A front end support frame (18) is fixedly mounted on the end of the tester body (1) facing the annular hammer frame (14), and an arc-shaped support frame (19) is arranged above the front end support frame (18).

5. A ground resistance tester for fire fighting as claimed in claim 4, characterized in that: At least two first springs (2) are fixedly installed between the lower part of the arc-shaped support frame (19) and the front end support frame (18), and the arc-shaped support frame (19) is inclined toward the tester body (1).

6. A ground resistance tester for fire fighting as claimed in claim 5, characterized in that: Two magnetic circular grooves (15) are provided below the tester body (1), and the two second springs (22) are both close to the side edges of the lower support plate (21).

7. A ground resistance tester for fire fighting as claimed in claim 6, characterized in that: Two third springs (25) are fixedly mounted on the upper side of the lower support plate (21) close to the other side wall, and a first magnetic block (26) is fixedly mounted on the top of the two third springs (25).

8. A ground resistance tester for fire fighting as claimed in claim 7, characterized in that: Each of the first magnetic blocks (26) is magnetically inserted into the magnetic circular groove (15), and a second magnetic block (27) is fixedly mounted on the outer ring of each of the first magnetic blocks (26), and each of the second magnetic blocks (27) is magnetically attracted below the tester body (1).

9. A ground resistance tester for fire fighting as claimed in claim 8, characterized in that: An arc-shaped slot (24) is formed through the side wall of the C-shaped bracket (23); at least two rubber strips (31) are fixedly mounted on the surface of the lower support plate (21); a rubber support pad (16) is fixedly mounted below the tester body (1), and the rubber support pad (16) is close to one side of the first spring (2).

10. A ground resistance tester for fire fighting as claimed in claim 9, characterized in that: The end of the test needle (28) is inserted into the arc-shaped slot (24) provided in the C-shaped bracket (23), and the outer end of the test needle (28) is clamped on the first spring (2) and the straight surface (29), and the rubber strip (31) is located between the two test needles (28).

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