Relay protection tester

Abstract

The utility model provides a relay protection tester. The relay protection tester comprises a second shell, fixing blocks are welded to the four corners of the second shell, limiting grooves are formed in the surfaces of the fixing blocks, a first shell is arranged among the four limiting grooves, and a fixing frame is fixedly connected to the surface of the side wall, facing the second shell, of the first shell; an inserting groove is formed in the surface of the second shell, the fixing frame is located in the inserting groove, a rotating plate is rotationally connected to the surface of the side wall of the first shell, a limiting block is fixedly connected to the end of the rotating plate, a clamping piece is installed on the surface of the side wall of the second shell, and the limiting block and the clamping piece are connected in a clamped mode. The surface, far away from the first housing, of the second housing is connected with a plurality of uniformly distributed wire concentration boxes through bolts. The relay protection tester provided by the utility model has the advantages that the test wires can be conveniently managed, and the tester can be easily taken out from the box body.

Description

Technical Field

[0001] The utility model relates to the field of relay protection testers, in particular to a relay protection tester. Background Art

[0002] The relay protection detector is a universal test device for relay protection. It is mainly used for testing and researching various types of electromagnetic, integrated circuit and microcomputer protection relays and protection systems of various voltage levels. It can realize flexible control of voltage and current amplitude, phase frequency, and has special test modules for various relays and protections. It is an essential tool for pre-commissioning commissioning and regular inspection of protection devices in grassroots power units.

[0003] However, the traditional relay protection test device still has certain shortcomings during use: first, for transportation safety, the current relay protection tester is usually placed in a matching box, but each time it is used, the box must be opened to take it out and put back after use. Due to the bulky structure, it is troublesome to operate, and it is easy to drop it if not operated carefully, causing internal components to break. Secondly, several test wires are needed to connect the detector and the relay during the detection process. In the traditional structure, the test wires are twisted into a bundle and placed in a box after each use. This placement method easily causes the wires to get tangled together, making it difficult to reuse them later.

[0004] Therefore, it is necessary to provide a new relay protection tester to solve the above technical problems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a relay protection tester which is convenient for managing the test line and easy for taking the instrument out of the box.

[0006] In order to solve the above technical problems, the utility model provides a relay protection tester including: a second shell, the four corners of the second shell are welded with fixed blocks, the surface of the fixed block is provided with a limiting groove, a first shell is arranged between the four limiting grooves, a side wall surface of the first shell facing the second shell is fixedly connected with a fixed frame, the surface of the second shell is provided with a slot, the fixed frame is located inside the slot, the side wall surface of the first shell is rotatably connected with a rotating plate, the end of the rotating plate is fixedly connected with a limiting block, a clamp is installed on the side wall surface of the second shell, the limiting block and the clamp are clamped together, a surface of the second shell away from the first shell is connected with a number of evenly distributed junction boxes by bolts, the interior of the junction box is rotatably connected with a second rotating drum, the interior of the second rotating drum is plugged with the first rotating drum, a through groove is provided at the end of the first rotating drum facing the second rotating drum, the end of the first rotating drum passes through the surface of the junction box and is fixedly connected with a knob, and the top and bottom of the junction box are provided with wire entry holes.

[0007] As a further solution of the utility model, a test line is arranged inside the through groove, and both ends of the test line extend out from the line entry holes at the top and bottom of the junction box respectively, and the surface of the line entry hole is connected to a sealing cap.

[0008] Through the above technical solution, several test lines are needed to connect the detector and the relay during the detection process. In the traditional structure, the test lines are twisted into a bundle and placed in a box after each use. This placement method easily causes the lines to be entangled, which makes it difficult to reuse them later. In this device, a separate junction box is set for the test lines. During installation, the middle section of the test line is first placed in the through groove, and the two plugs at the ends of the test line are passed through the top and bottom wire entry holes respectively, and the knob is rotated to allow the cables dragged from the outside to be retracted into the junction box, and the sealing cap is covered at the wire entry port to protect the internal plugs and test lines from dust and water. When in use, remove the sealing cap and pull out the cable. It is easy to operate, there is no need to worry about the cables being entangled, and it can be well preserved, which can increase the service life of the structure.

[0009] As a further solution of the utility model, a handle is connected between the two fixing blocks at the top, and the surfaces of the two fixing blocks at the bottom are both installed with supporting feet, and shock-absorbing pads are bonded to the bottoms of the supporting feet.

[0010] Through the above technical solution, the instrument and the external protection component can be carried and moved by the handle, and the feet and shock-absorbing pads at the bottom of the structure can keep the first shell and the second shell away from the ground and reduce vibration when in contact with the ground.

[0011] As a further solution of the utility model, an instrument body is installed between the four fixing blocks, a plurality of test jacks are provided on the front wall surface of the instrument body, and a display screen is installed at a position below the test jacks.

[0012] Through the above technical solution, during testing, the test line is pulled out, and then the plugs at both ends are respectively inserted into the test jack and the relay, so as to perform testing of various items, and the instrument can be operated through the display screen.

[0013] As a further solution of the utility model, a charging port and a switch are respectively provided on a side wall surface of the instrument body, and the charging port and the switch are both located on the inner side of the first shell and the second shell.

[0014] Through the above technical solution, when the first shell and the second shell are connected together through the clamp and the limit block, the internal charging port, test jack, etc. can be protected from dust and water, avoiding problems caused by dust entering the instrument.

[0015] As a further solution of the utility model, a rubber pad is bonded to the surface of the fixing frame, and the rubber pad abuts against the inner wall of the slot.

[0016] Through the above technical solution, the current relay protection tester is usually placed in a matching box for transportation safety, but each time it is used, the box must be opened to take it out and put back after use. Due to the bulky structure, it is troublesome to operate, and it is easy to slip out of the hand if it is not operated carefully, causing internal components to be broken. When the tester is needed in the device, the rotating plates on both sides are rotated by the pull ring to disengage the clamping part from the limit block and pull out the first shell horizontally. The device does not require the user to pull the instrument out of the box for testing and charging, and since a fixed frame and a slot are provided between the first shell and the second shell, the sealing of the structural connection can be guaranteed, and the structure is easy for workers to quickly detect.

[0017] As a further solution of the utility model, a pull ring is fixedly connected to the surface of the rotating plate.

[0018] Through the above technical solution, when the clamping member is engaged with the limit block and needs to be opened, the rotating plate can be pulled by the pull ring, which can save more effort.

[0019] Compared with the related art, the relay protection tester provided by the utility model has the following beneficial effects:

[0020] 1. In the present utility model, the current relay protection tester is usually placed in a matching box for transportation safety. However, each time it is used, the box must be opened to take it out and put back after use. Due to the heavy structure, it is troublesome to operate, and it is easy to slip out of the hands due to careless operation, resulting in damage to the internal components. When the tester is needed in the device, the rotating plates on both sides are rotated by the pull ring to disengage the clamping member from the limit block and pull out the first shell horizontally. The device does not require the user to pull the instrument out of the box for testing and charging. Moreover, since a fixing frame and a slot are provided between the first shell and the second shell, the sealing of the structural connection can be guaranteed. The structure is easy for workers to quickly detect;

[0021] 2. In the utility model, several test wires are needed to connect the detector and the relay during the detection process. In the traditional structure, the test wires are twisted into a bundle and put into a box after each use. This placement method easily causes the wires to be entangled, which makes it difficult to reuse them later. In this device, a separate junction box is set for the test wires. When installing, first place the middle section of the test wire in the through groove, and let the two plugs at the ends of the test wire pass through the top and bottom wire entry holes respectively, and rotate the knob to allow the cables dragged from the outside to be retracted into the junction box, and cover the sealing cap at the wire entry port to protect the internal plugs and test wires from dust and water. When in use, remove the sealing cap and pull out the cable. It is easy to operate, there is no need to worry about the cables being entangled, and it can be well preserved, which can increase the service life of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 The overall structure of a relay protection tester in the utility model is shown in FIG. Figure 1 ;

[0024] Figure 2 The overall structure of a relay protection tester in the utility model is shown in FIG. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the overall structure of a relay protection tester in the utility model;

[0026] Figure 4 The utility model is a schematic diagram of the partial structure disassembly of a relay protection tester.

[0027] Description of main symbols:

[0028] 1. First shell; 2. Second shell; 3. Fixed block; 4. Handle; 5. Limit block; 6. Pull ring; 7. Card; 8. Junction box; 9. Knob; 10. Sealing cap; 11. Rotating plate; 12. Test line; 13. Limit groove; 14. Charging port; 15. Slot; 16. Test jack; 17. Fixed frame; 18. Display screen; 19. First rotating cylinder; 20. Through groove; 21. Second rotating cylinder; 22. Wire entry hole; 23. Instrument body. DETAILED DESCRIPTION

[0029] Please combine Figures 1 to 4 ,in, Figure 1 The overall structure of a relay protection tester in the utility model is shown in FIG. Figure 1 ; Figure 2 The overall structure of a relay protection tester in the utility model is shown in FIG. Figure 2 ; Figure 3 This is a schematic diagram of the overall structure of a relay protection tester in the utility model; Figure 4 The following is a schematic diagram of the partial structure of a relay protection tester in the utility model. A relay protection tester includes:

[0030] The second shell 2 has four corners at which fixed blocks 3 are welded, and a limiting groove 13 is provided on the surface of the fixed block 3. A first shell 1 is arranged between the four limiting grooves 13. A fixing frame 17 is fixedly connected to a side wall surface of the first shell 1 facing the second shell 2, and a slot 15 is provided on the surface of the second shell 2. The fixing frame 17 is located inside the slot 15. A rotating plate 11 is rotatably connected to the side wall surface of the first shell 1, and a limiting block 5 is fixedly connected to the end of the rotating plate 11. A clamp 7 is installed on the side wall surface of the second shell 2, and the limiting block 5 is clamped with the clamp 7. A surface of the second shell 2 away from the first shell 1 is connected by bolts to a number of evenly distributed junction boxes 8. The inside of the junction box 8 is rotatably connected to a second rotating cylinder 21, and a first rotating cylinder 19 is inserted into the inside of the second rotating cylinder 21. A through groove 20 is provided at the end of the first rotating cylinder 19 facing the second rotating cylinder 21, and the end of the first rotating cylinder 19 passes through the surface of the junction box 8 and is fixedly connected to a knob 9. The top and bottom of the junction box 8 are provided with wire entry holes 22.

[0031] like Figure 1 As shown, a test line 12 is arranged inside the through slot 20 , and two ends of the test line 12 extend out from line inlet holes 22 at the top and bottom of the junction box 8 respectively, and a sealing cap 10 is connected to the surface of the line inlet hole 22 .

[0032] During the detection process, several test wires 12 are needed to connect the detector and the relay. In the traditional structure, the test wires 12 are twisted into a bundle and placed in a box each time they are used. This placement method easily causes the wires to be entangled, making it difficult to reuse them later. In this device, a separate junction box 8 is set for the test wires 12. During installation, the middle section of the test wire 12 is first placed in the through groove 20, and the two plugs at the ends of the test wire 12 are respectively passed through the top and bottom wire entry holes 22, and the knob 9 is rotated to allow the cables dragged from the outside to be retracted into the junction box 8, and the sealing cap 10 is covered at the wire entry port to protect the internal plug and the test wire 12 from dust and water. When in use, remove the sealing cap 10 and pull out the cable. It is easy to operate, there is no need to worry about the cables being entangled, and it can be well preserved, which can increase the service life of the structure.

[0033] like Figure 1 As shown, a handle 4 is connected between the two fixing blocks 3 at the top, and supporting feet are installed on the surfaces of the two fixing blocks 3 at the bottom, and shock-absorbing pads are bonded to the bottom of the supporting feet.

[0034] The instrument and the external protection assembly can be carried and moved by the handle 4, and the feet and shock-absorbing pads at the bottom of the structure can keep the first shell 1 and the second shell 2 away from the ground and reduce vibration when they come into contact with the ground.

[0035] like Figure 1As shown, an instrument body 23 is installed between the four fixing blocks 3 , a plurality of test sockets 16 are arranged on the front wall surface of the instrument body 23 , and a display screen 18 is installed at the lower side of the test sockets 16 .

[0036] During testing, the test line 12 is pulled out, and then the plugs at both ends are respectively inserted into the test jack 16 and the relay, so as to perform testing of various items, and the instrument can be operated through the display screen 18.

[0037] like Figure 1 As shown, a charging port 14 and a switch are respectively provided on a side wall surface of the instrument body 23 , and the charging port 14 and the switch are both located on the inner side of the first shell 1 and the second shell 2 .

[0038] When the first shell 1 and the second shell 2 are connected together through the clamp 7 and the limit block 5, the internal charging port 14, the test jack 16, etc. can be protected from dust and water, avoiding problems caused by dust entering the instrument.

[0039] like Figure 1 As shown, a rubber pad is bonded to the surface of the fixing frame 17 , and the rubber pad abuts against the inner wall of the slot 15 .

[0040] For the purpose of transportation safety, the current relay protection tester is usually placed in a matching box. However, each time it is used, the box must be opened to take it out and then put back after use. Due to its bulky structure, it is troublesome to operate, and it is easy to slip out of the hand if it is not operated carefully, causing internal components to be damaged. When the tester is needed in the device, the rotating plates 11 on both sides are rotated by the pull ring 6 to disengage the clamping member 7 from the limit block 5 and pull out the first shell 1 horizontally. The device does not require the user to pull the instrument out of the box for testing and charging. Moreover, since a fixing frame 17 and a slot 15 are provided between the first shell 1 and the second shell 2, the sealing of the structural connection can be guaranteed, and the structure is easy for workers to quickly detect.

[0041] like Figure 1 As shown, a pull ring 6 is fixedly connected to the surface of the rotating plate 11 .

[0042] After the clamping member 7 is clamped with the limiting block 5, when it needs to be opened, the rotating plate 11 is pulled by the pull ring 6, which can save more effort.

[0043] The working principle of a relay protection tester provided by the utility model is as follows:

[0044] Step 1: For transportation safety, the current relay protection tester is usually placed in a matching box, but each time it is used, the box must be opened to take it out and put back after use. Due to the heavy structure, it is troublesome to operate, and it is easy to slip out of the hand if it is not operated carefully, causing internal components to break. When the tester is needed in the device, the rotating plates 11 on both sides are rotated by the pull ring 6 to disengage the clamping member 7 from the limit block 5 and pull out the first shell 1 horizontally. The device does not require the user to pull the instrument out of the box for testing and charging. Since the fixing frame 17 and the slot 15 are provided between the first shell 1 and the second shell 2, the sealing of the structural connection can be guaranteed, and the structure is easy for workers to quickly detect;

[0045] Step 2: During the detection process, several test wires 12 are needed to connect the detector and the relay. In the traditional structure, the test wires 12 are twisted into a bundle and placed in a box each time they are used. This placement method easily causes the wires to get tangled together, making it difficult to reuse them later. In this device, a separate junction box 8 is set for the test wires 12. During installation, the middle section of the test wire 12 is first placed in the through groove 20, and the two plugs at the ends of the test wire 12 are respectively passed through the top and bottom wire entry holes 22, and the knob 9 is rotated to allow the cables dragged from the outside to be retracted into the junction box 8, and the sealing cap 10 is covered at the wire entry port to protect the internal plugs and test wires 12 from dust and water. When in use, remove the sealing cap 10 and pull out the cable. It is easy to operate, there is no need to worry about the cables getting tangled, and it can be well preserved, which can increase the service life of the structure.

[0046] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0047] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0048] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A relay protection tester, characterized in that: The invention comprises a second shell (2), wherein four corners of the second shell (2) are welded with fixing blocks (3), the surface of the fixing blocks (3) is provided with limiting grooves (13), a first shell (1) is arranged between the four limiting grooves (13), a side wall surface of the first shell (1) facing the second shell (2) is fixedly connected with a fixing frame (17), a surface of the second shell (2) is provided with a slot (15), the fixing frame (17) is located inside the slot (15), a side wall surface of the first shell (1) is rotatably connected with a rotating plate (11), an end of the rotating plate (11) is fixedly connected with the limiting block (5), and the second shell (2 ) is installed with a clamp (7) on the side wall surface, the limit block (5) is clamped with the clamp (7), the surface of the second shell (2) away from the first shell (1) is connected with a plurality of evenly distributed collection boxes (8) by bolts, the interior of the collection box (8) is rotatably connected with a second rotating cylinder (21), the interior of the second rotating cylinder (21) is plugged with a first rotating cylinder (19), a through groove (20) is provided at the end of the first rotating cylinder (19) facing the second rotating cylinder (21), the end of the first rotating cylinder (19) passes through the surface of the collection box (8) and is fixedly connected with a knob (9), and the top and bottom of the collection box (8) are provided with line entry holes (22).

2. The relay protection tester according to claim 1, characterized in that: A test line (12) is arranged inside the through groove (20), and two ends of the test line (12) extend out from the line entry holes (22) at the top and bottom of the junction box (8) respectively, and the surface of the line entry hole (22) is connected to a sealing cap (10).

3. The relay protection tester according to claim 1, characterized in that: A handle (4) is connected between the two fixing blocks (3) at the top, and supporting feet are installed on the surfaces of the two fixing blocks (3) at the bottom, and shock-absorbing pads are bonded to the bottoms of the supporting feet.

4. The relay protection tester according to claim 1, characterized in that: An instrument body (23) is installed between the four fixing blocks (3), a plurality of test jacks (16) are arranged on the front wall surface of the instrument body (23), and a display screen (18) is installed at a position below the test jacks (16).

5. The relay protection tester according to claim 4, characterized in that: A charging port (14) and a switch are respectively provided on a side wall surface of the instrument body (23); the charging port (14) and the switch are both located inside the first shell (1) and the second shell (2).

6. The relay protection tester according to claim 1, characterized in that: A rubber pad is bonded to the surface of the fixing frame (17), and the rubber pad abuts against the inner wall of the slot (15).

7. The relay protection tester according to claim 1, characterized in that: A pull ring (6) is fixedly connected to the surface of the rotating plate (11).

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