Flexible and convenient insulation resistance tester

Abstract

A flexible and convenient insulation resistance tester disclosed by the present invention comprises a tester body, the surface of the tester body is provided with a display screen, a control button and a wiring port, two ends of the surface of the tester body form an operation area and a counterweight area respectively, and the display screen, the control button and the wiring port are all arranged in the operation area. A drop rope is connected to the tester body on one side of the operation area, a mounting groove located in the surface of the tester body is formed in the balance weight area, a plurality of balance weight pieces are connected in the mounting groove in a buckled mode, a cover plate attached to the surface of the tester body is arranged outside the balance weight pieces, and fixing screws and pressing rods are connected to the periphery of the cover plate respectively; the cover plate and the tester body are connected with each other through fixing screws. The possibility that the resistance tester collides with external facilities to cause damage can be reduced.

Description

Technical Field

[0001] The invention relates to a handheld resistance tester, in particular to a flexible and convenient insulation resistance tester. Background Art

[0002] When the staff of pumped storage power stations are performing maintenance or inspection, they often need to use handheld resistance testers to test electronic equipment. However, due to the working environment of pumped storage power stations, the detection space and channels are relatively narrow, and the staff need to constantly climb and avoid obstacles during the detection process. The display screen, wiring ports, control buttons and other vulnerable parts of conventional resistance testers are distributed on the outer surface of the tester. As a result, during the climbing and detection process, the staff often cause the vulnerable parts of the resistance tester to collide with external equipment and cause damage, affecting the working stability and service life of the resistance tester.

[0003] On the other hand, in order to facilitate climbing and manual operation of the resistance tester by the staff, a hand rope is also tied to the outside of the resistance tester, so that the staff can hang the resistance tester on the wrist when operating with both hands, which is convenient for the staff to operate flexibly and avoid the resistance tester from falling. However, the disadvantage of this carrying method is that when the operator swings his arm during operation, the resistance tester will swing at the wrist, thereby increasing the possibility of collision between the resistance tester and external facilities, and it is difficult to achieve its protective effect.

[0004] Therefore, the existing handheld resistance tester has the problem of being easily collided with external facilities during use. Summary of the invention

[0005] The purpose of the present invention is to provide a flexible and convenient insulation resistance tester, which can reduce the possibility of the resistance tester colliding with external facilities and causing damage.

[0006] The technical solution of the present invention is as follows: a flexible and convenient insulation resistance tester comprises a tester body, a display screen, a control button and a wiring port are respectively provided on the surface of the tester body, an operation area and a counterweight area are respectively formed at two ends of the surface of the tester body, the display screen, the control button and the wiring port are all arranged in the operation area, a safety rope is connected to the tester body on one side of the operation area, a mounting groove located on the surface of the tester body is provided in the counterweight area, a plurality of counterweight plates are buckled and connected in the mounting groove, a cover plate which is attached to the surface of the tester body is provided on the outside of the counterweight plate, fixing screws and a clamping rod are respectively connected around the cover plate, the cover plate and the tester body are connected to each other via fixing screws, one end of the clamping rod is fixedly connected to the cover plate, and the other end of the clamping rod extends to the inner side of the cover plate and is used to clamp and limit the counterweight plate.

[0007] In the aforementioned flexible and convenient insulation resistance tester, mounting strips for threaded connection with fixing screws are formed on the tester body at both ends of the mounting slot.

[0008] The aforementioned flexible and convenient insulation resistance tester also includes a limit plate located in the installation groove, and vertical columns are provided at both ends of the limit plate. The upper end of the column extends to the top of the counterweight plate and is threadedly connected with a fixing nut. The bottom surface of the fixing nut and the upper counterweight plate fit each other, and the top of the column is buckled into the bottom of the clamping rod.

[0009] In the aforementioned flexible and convenient insulation resistance tester, a plurality of openings for buckling and connecting the mounting strips and for the columns to pass through are distributed around the edges of the counterweight plate.

[0010] In the aforementioned flexible and convenient insulation resistance tester, a first rope groove is provided on the side wall of the tester body at one end away from the counterweight area, and one end of the safety rope is bound in the first rope groove.

[0011] Compared with the prior art, the present invention has the following characteristics:

[0012] (1) The present invention installs the counterweight plate in the counterweight area of ​​the test instrument body so that when the test instrument body is suspended, the counterweight area can naturally droop downward, and the operation area provided with a display screen, control buttons and wiring ports can be located at the upper end of the test instrument body and closer to the wrist. As a result, when the test instrument body swings with the operation of the staff, the swaying range of the operation area is smaller than that of the counterweight area, and it is less likely to collide with external facilities, thereby improving the service life of the test instrument body. On the other hand, the setting of the counterweight plate can also increase the weight of the test instrument body, thereby reducing the swaying amplitude of the test instrument body and enabling the test instrument body to return to a drooping state more quickly after shaking, further reducing the possibility of the test instrument body colliding with the outside.

[0013] (2) On the basis of the above, through the structural coordination of the counterweight plate and the cover plate, the staff can control the counterweight weight of the tester body by increasing or decreasing the number of counterweight plates, thereby ensuring the counterweight effect and improving the comfort of the staff; further, through the structural coordination of the pressing rod and the limiting plate, the cover plate can also limit the different numbers of counterweight plates in the installation slot, thereby improving the limiting effect of the present invention;

[0014] Therefore, the present invention can reduce the possibility of the resistance tester colliding with external facilities and causing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the appearance diagram of the present invention;

[0016] Figure 2 is a schematic diagram of the installation of the weight plate in Example 1;

[0017] Figure 3 is a top view of the counterweight area of ​​Example 1;

[0018] Figure 4 is a schematic diagram of the installation of the weight plate in Example 2;

[0019] Figure 5 is a top view of Example 2 at the counterweight area;

[0020] Figure 6 It is a top view of Example 3 at the counterweight area.

[0021] The marks in the accompanying drawings are: 1-test instrument body, 2-display screen, 3-control button, 4-wiring port, 5-safety rope, 6-installation slot, 7-weight plate, 8-cover plate, 9-fixing screw, 10-pressure rod, 11-limiting plate, 12-fixing nut, 101-operating area, 102-weight area, 103-installation bar, 701-opening. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0023] Embodiment 1. A flexible and convenient insulation resistance tester, comprising: Figure 1-3 As shown, the tester body 1 includes a display screen 2, a control button 3 and a connection port 4 on the surface of the tester body 1. The two ends of the surface of the tester body 1 form an operation area 101 and a counterweight area 102 respectively. The display screen 2, the control button 3 and the connection port 4 are all arranged in the operation area 101. A safety rope 5 is connected to the tester body 1 on one side of the operation area 101. The safety rope 5 can be a ball-head elastic rope. The counterweight area 102 is provided with a mounting groove 6 located on the surface of the tester body 1. A number of counterweight plates 7 are buckled and connected in the mounting groove 6. A cover plate 8 is provided on the outside of the counterweight plate 7 and is attached to the surface of the tester body 1. Fixing screws 9 and a clamping rod 10 are connected to the four sides of the cover plate 8 respectively. The fixing screws 9 and the clamping rod 10 are distributed in a ring shape around the cover plate 8 and are staggered with each other. The cover plate 8 and the tester body 1 are connected to each other via the fixing screws 9. The clamping rod 10 and the cover plate 8 are integrally formed. The lower end of the clamping rod 10 extends to the inner side of the cover plate 8 and is used to clamp and limit the counterweight plate 7.

[0024] Mounting strips 103 for threadedly connecting fixing screws 9 are formed on the tester body 1 at both ends of the mounting groove 6 .

[0025] A plurality of openings 701 for buckling and connecting the mounting strips 103 are distributed around the edges of the weight plate 7 .

[0026] The tester body 1 is provided with a first rope groove on the side wall at one end away from the counterweight area 102 , and one end of the safety rope 5 is bound in the first rope groove.

[0027] Working principle of the present invention: The present invention uses the structural coordination of the weight plate 7 and the cover plate 8 to enable the tester body 1 to form a state where one end is light and the other end is heavy after the weight plate 7 is installed. Therefore, when the staff puts the tester body 1 on the wrist through the hand-free rope 5, one end of the weight area 102 of the tester body 1 can be kept in a vertical downward hanging state, thereby reducing the shaking amplitude of the operating area 101 on the one hand, and on the other hand, the weight plate 7 can be used to make the tester body 1 return to the hanging state faster after swinging, thereby reducing the possibility of various vulnerable parts on the operating area 101 colliding with the outside.

[0028] If the resistance tester is not damaged by collision, the staff can open the cover plate 8 and take out the weight plate 7, thereby reducing the weight of the resistance tester and making it easier for the staff to carry it.

[0029] Embodiment 2. A flexible and convenient insulation resistance tester, comprising: Figure 1 , 4 As shown in Figure 5, the tester body 1 includes a display screen 2, a control button 3 and a wiring port 4 on the surface of the tester body 1. The two ends of the surface of the tester body 1 form an operation area 101 and a counterweight area 102 respectively. The display screen 2, the control button 3 and the wiring port 4 are all arranged in the operation area 101. A hand-loosening rope 5 is connected to the tester body 1 on one side of the operation area 101. The hand-loosening rope 5 can be a ball-head elastic rope. The counterweight area 102 is provided with a mounting groove located on the surface of the tester body 1. 6. A plurality of weight plates 7 are buckled and connected in the mounting groove 6. A cover plate 8 is provided on the outside of the weight plate 7 and is attached to the surface of the tester body 1. Fixing screws 9 and a clamping rod 10 are connected to the four sides of the cover plate 8 respectively. The fixing screws 9 and the clamping rod 10 are distributed in a ring shape around the cover plate 8 and are staggered with each other. The cover plate 8 and the tester body 1 are connected to each other via the fixing screws 9. The clamping rod 10 and the cover plate 8 are integrally formed. The lower end of the clamping rod 10 extends to the inner side of the cover plate 8 and is used to clamp and limit the weight plate 7.

[0030] Mounting strips 103 for threadedly connecting fixing screws 9 are formed on the tester body 1 at both ends of the mounting groove 6 .

[0031] It also includes a limit plate 11 located in the installation groove 6, and vertical columns are provided at both ends of the limit plate 11. The upper end of the column extends to the top of the counterweight plate 7 and is threadedly connected with a fixing nut 12. After being tightened, the fixing nut 12 presses the counterweight plate 7 below through a gasket. The bottom surface of the fixing nut 12 and the upper counterweight plate 7 fit each other, and the top of the column is buckled into the bottom of the clamping rod 10.

[0032] The limiting piece 11 is arranged in the middle position of the mounting slot 6. The counterweight piece 7 below the limiting piece 11 is a basic counterweight and is not adjusted. The counterweight piece above the limiting piece 11 is a flexible counterweight and can be increased or decreased according to user needs.

[0033] The weight plate 7 is provided with a plurality of openings 701 around its edges for buckling and connecting the mounting strips 103 and for allowing the columns to pass through.

[0034] The tester body 1 is provided with a first rope groove on the side wall at one end away from the counterweight area 102 , and one end of the safety rope 5 is bound in the first rope groove.

[0035] Compared with the first embodiment, the present embodiment uses the structural cooperation between the cover plate 8 and the limiting plate 11 to stably place the limiting plate 11 in the installation slot 6, and uses the cooperation between the cover plate 8 and the fixing nut 12 to limit the weight plates 7 on the upper and lower sides of the limiting plate 11. Under the above cooperation, the limiting plate 11 can limit the weight plates 7 of different numbers in the installation slot 6, thereby enabling the staff to flexibly adjust the weight of the weight, thereby improving its applicability.

[0036] Embodiment 3. A flexible and convenient insulation resistance tester, comprising: Figure 1 and 6 As shown, it includes a tester body 1, and a display screen 2, a control button 3 and a wiring port 4 are respectively provided on the surface of the tester body 1. An operation area 101 and a counterweight area 102 are respectively formed at two ends of the surface of the tester body 1. The display screen 2, the control button 3 and the wiring port 4 are all arranged in the operation area 101. A fail-safe rope 5 is connected to the tester body 1 on one side of the operation area 101. The fail-safe rope 5 can be a ball-head elastic rope. A mounting groove 6 located on the surface of the tester body 1 is provided in the counterweight area 102. A plurality of counterweight plates 7 are buckled and connected in the mounting groove 6. A cover plate 8 is provided on the outside of the counterweight plate 7 and is attached to the surface of the tester body 1. Fixing screws 9 are connected around the cover plate 8. A clamping rod 10 is connected to the middle of the cover plate 8. The cover plate 8 and the tester body 1 are connected to each other via the fixing screws 9. The clamping rod 10 and the cover plate 8 are integrally formed.

[0037] It also includes a limiting plate 11 located in the mounting groove 6, a vertical column is provided in the middle of the limiting plate 11, the upper end of the column extends to the top of the counterweight plate 7 and is threadedly connected with a fixing nut 12, and the fixing nut 12 is tightened to press the counterweight plate 7 below through a gasket after being tightened, the bottom surface of the fixing nut 12 and the upper counterweight plate 7 fit each other, and the top of the column is buckled on the bottom of the clamping rod 10; a round hole is provided in the middle of the counterweight plate 7 for the column to pass through.

[0038] The limiting piece 11 is arranged in the middle position of the mounting slot 6. The counterweight piece 7 below the limiting piece 11 is a basic counterweight and is not adjusted. The counterweight piece above the limiting piece 11 is a flexible counterweight and can be increased or decreased according to user needs.

[0039] The tester body 1 is provided with a first rope groove on the side wall at one end away from the counterweight area 102 , and one end of the safety rope 5 is bound in the first rope groove.

[0040] Compared with Example 2, this embodiment removes the mounting strip 103 on the tester body 1 and the opening 701 on the weight plate 7, and can also achieve the limit function for different numbers of weight plates 7. The structure is simpler and the processing cost is lower. However, in contrast, the weight plate 7 cannot be fastened and fixed and circumferentially limited in this state, that is, it is more likely to cause collision noise problems.

Claims

1. A flexible and convenient insulation resistance tester, comprising a tester body (1), the surface of which is provided with a display screen (2), a control button (3) and a wiring port (4), characterized in that: An operation area (101) and a counterweight area (102) are respectively formed at two ends of the surface of the tester body (1); the display screen (2), the control button (3) and the wiring port (4) are all arranged in the operation area (101); a safety rope (5) is connected to the tester body (1) on one side of the operation area (101); a mounting groove (6) located on the surface of the tester body (1) is arranged in the counterweight area (102); a plurality of counterweight plates are buckled and connected in the mounting groove (6) (7), the weight plate (7) is provided with a cover plate (8) attached to the surface of the tester body (1) on the outside, and fixing screws (9) and a clamping rod (10) are respectively connected to the four sides of the cover plate (8), and the cover plate (8) and the tester body (1) are connected to each other via the fixing screws (9), one end of the clamping rod (10) is fixedly connected to the cover plate (8), and the other end of the clamping rod (10) extends to the inside of the cover plate (8) and is used to clamp and limit the weight plate (7).

2. The flexible and convenient insulation resistance tester according to claim 1 is characterized in that: Mounting strips (103) for threadedly connecting fixing screws (9) are formed on the tester body (1) at both ends of the mounting groove (6).

3. The flexible and convenient insulation resistance tester according to claim 2 is characterized in that: It also includes a limiting plate (11) located in the installation groove (6), and vertical columns are provided at both ends of the limiting plate (11). The upper ends of the columns extend to the top of the counterweight plate (7) and are threadedly connected with fixing nuts (12). The bottom surface of the fixing nut (12) and the upper counterweight plate (7) are in contact with each other, and the top of the column is buckled on the bottom of the pressing rod (10).

4. The flexible and convenient insulation resistance tester according to claim 3 is characterized in that: A plurality of openings (701) for buckling and connecting the mounting strips (103) and for allowing the columns to pass through are distributed around the edges of the weight plate (7).

5. The flexible and convenient insulation resistance tester according to claim 1 is characterized in that: The tester body (1) is provided with a first rope groove on a side wall at one end away from the counterweight area (102), and one end of the safety rope (5) is bound in the first rope groove.

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