Relay protection testing device with connecting line anti-loosening structure
By using the hook, ring groove, and worm worm structure in the relay protection testing device, the problem of loosening and tedious operations of test lines is solved, and efficient anti -loose and simple operations are achieved, and the tests of the detection are guaranteed normally.
Patent Information
- Application Number
- CN202420681808.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-03
AI Technical Summary
When using the test device to detect electrical equipment, the large number of connecting lines leads to messy, easy to loosen or disengage, resulting in detection failure, and the existing anti-loosening structure is cumbersome to operate.
Design a relay protection test device with a connected line anti -loose structure, which uses the restriction relationship of hooks and ring grooves, combines the self -locking characteristics of the worm and worm wheel Anti -loosening process.
The effective anti -loosening of the test line is achieved, improved the efficiency of the work, and avoided the failure of the test. It also helps to check the test line insertion through the relationship between the hook and the ring groove to ensure that the detection is carried out normally.
Smart Images
Figure CN222420399U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of testing devices, in particular to a relay protection testing device with a connecting wire anti-loosening structure. Background Art
[0002] Whether the protection device can operate correctly is directly related to the safe operation of the power system. Regular inspection of the protection device is a key means to verify the logical performance of the protection device and ensure the correct operation of the protection device. When using the test device to detect electrical equipment, it is necessary to connect more test lines between them. Due to the large number of connecting wires, it appears to be messy. In the process of detection, there are careless actions that cause the test wire to loosen, or even detach from the socket terminal, resulting in detection failure. The staff needs to re-identify the corresponding test wire from the numerous wire ends for connection, which is very troublesome. In addition, although some of the connecting wires currently in use have anti-loosening structures, most of them are cumbersome to operate, such as using bolts for fixing, and the test wire generally needs to be connected in multiples for use, and the single anti-loosening method is inconvenient. Therefore, we propose a relay protection test device with a connecting wire anti-loosening structure to solve the above problems. Utility Model Content
[0003] The main purpose of the utility model is to provide a relay protection test device with a connection line anti-loosening structure, which can effectively solve the problems in the background technology.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a relay protection test device with a connection line anti-loosening structure, comprising a relay protection tester body, the upper end of the relay protection tester body is provided with four groups of evenly distributed jacks, and the jacks are symmetrical in pairs, and the upper end of the relay protection tester body is fixedly connected with a positioning box between the jacks, and a double-sided rack is slidably installed inside the positioning box, and the left and right ends of the double-sided rack are meshed and connected with gears at the corresponding jacks, and the axis of the gear is fixedly plugged with a fixed shaft, the upper end of the fixed shaft passes through the positioning box and is fixedly connected with a lock hook, the upper end of the jack is plugged with a removable test line, and the plug of the test line is provided with a ring groove at the position corresponding to the lock hook, and the ring groove and the lock hook are adapted to each other.
[0005] Preferably, limit bars are provided at the corresponding middle positions of the upper and lower ends of the double-sided rack, and sliding grooves are provided near the middle of the upper and lower inner walls of the positioning box. The limit bars are respectively slidably connected to the inside of the sliding grooves, and the length of the sliding grooves is greater than the length of the limit bars, so that the double-sided rack can slide symmetrically on the left and right.
[0006] Preferably, a threaded rod is threadedly connected to the middle of the right end of the double-sided rack, and the threaded rod passes through the right end of the positioning box and extends to the outside. A bearing is fixedly sleeved at the connection between the threaded rod and the positioning box, and the threaded rod and the positioning box are rotatably connected via the bearing to position the threaded rod, so that the double-sided rack can move.
[0007] Preferably, a worm wheel is fixedly sleeved on the right end of the threaded rod, a worm is meshedly connected to the upper end of the worm wheel, a protective shell is fixedly installed on the outer side of the worm wheel and the worm at the upper end of the relay protection tester body, and the threaded rod passes through and is rotatably connected to the inside of the protective shell, thereby preventing precision parts from being accidentally damaged and ensuring the rationality of the structure.
[0008] Preferably, the rear end of the worm is rotatably connected to the inner rear wall of the protective shell, the front end of the worm passes through and is rotatably connected to the front end of the protective shell, and the front end of the worm is fixedly connected to the outside of the protective shell with a knob for easy use.
[0009] Preferably, a human-machine interactive touch screen is provided at the inclined surface of the relay protection tester body, which makes the operation more convenient.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] 1. This technical solution can simultaneously prevent two rows of test wires from loosening simply by turning the knob. Compared with operating one by one, it greatly improves work efficiency and is very convenient.
[0012] 2. The restrictive relationship between the lock hook and the ring groove can prevent the test line from loosening. At the same time, the self-locking feature between the worm and the worm wheel can prevent the test line from shaking the lock hook when subjected to external force, resulting in locking failure. The anti-loosening effect is ideal.
[0013] 3. The fit between the lock hook and the ring groove can also help the staff to check if the test line is not inserted properly, ensuring the normal progress of subsequent testing work. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of the relay protection test device with a connection line anti-loosening structure of the utility model;
[0015] Figure 2 It is a partial cross-sectional structural schematic diagram of a relay protection test device with a connecting wire anti-loosening structure of the utility model;
[0016] Figure 3 The utility model is a relay protection test device with a connection line anti-loosening structure Figure 2A schematic diagram of the enlarged structure at A in the middle;
[0017] Figure 4 The utility model is a partial cross-sectional structural schematic diagram of a relay protection test device with a connecting wire anti-loosening structure.
[0018] In the figure: 1. Relay protection tester body; 2. Socket; 3. Test line; 4. Positioning box; 5. Double-sided rack; 6. Gear; 7. Fixed shaft; 8. Lock hook; 9. Ring groove; 10. Limit strip; 11. Slide groove; 12. Threaded rod; 13. Bearing; 14. Worm gear; 15. Worm; 16. Protective shell; 17. Knob; 18. Human-computer interaction touch screen. DETAILED DESCRIPTION
[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0020] like Figure 1-Figure 4 As shown, a relay protection test device with a connection line anti-loosening structure comprises a relay protection tester body 1, the upper end of the relay protection tester body 1 is provided with four groups of evenly distributed jacks 2, the jacks 2 are symmetrical in pairs, the upper end of the relay protection tester body 1 is fixedly connected with a positioning box 4 between the jacks 2, a double-sided rack 5 is slidably installed inside the positioning box 4, the left and right ends of the double-sided rack 5 are meshed and connected with gears 6 at the corresponding jacks 2, a fixed shaft 7 is fixedly plugged at the axis of the gear 6, the upper end of the fixed shaft 7 passes through the positioning box 4 and is fixedly connected with a lock hook 8, a removable test line 3 is plugged with the upper end of the jack 2, and the plug of the test line 3 is provided with a ring groove 9 at the position corresponding to the lock hook 8, and the ring groove 9 and the lock hook 8 are adapted to each other;
[0021] The movement of the double-sided rack 5 can drive the gear 6 to rotate, and the rotation of the gear 6 can drive the fixed shaft 7 to rotate, and then the rotation of the fixed shaft 7 can drive the lock hook 8 to rotate, and the rotation of the lock hook 8 can make it engage with the ring groove 9 of the test line 3. The test line 3 is prevented from loosening by the restricting relationship between the lock hook 8 and the ring groove 9, and the self-locking feature between the worm 15 and the worm wheel 14 is avoided, which avoids the situation that the test line 3 drives the lock hook 8 to shake when subjected to external force, resulting in locking failure. The fitting relationship between the lock hook 8 and the ring groove 9 can also help the staff to check whether the test line 3 is not inserted into place when inserted.
[0022] Limiting bars 10 are arranged at the corresponding middle positions of the upper and lower ends of the double-sided rack 5, and sliding grooves 11 are arranged near the middle of the upper and lower inner walls of the positioning box 4. The limiting bars 10 are respectively slidably connected to the inside of the sliding grooves 11. The length of the sliding grooves 11 is greater than the length of the limiting bars 10. The limiting bars 10 slide inside the sliding grooves 11 to play a limiting role, thereby ensuring the stability of the double-sided rack 5.
[0023] A threaded rod 12 is threadedly connected to the middle of the right end of the double-sided rack 5. The threaded rod 12 passes through the right end of the positioning box 4 and extends to the outside. A bearing 13 is fixedly sleeved at the connection between the threaded rod 12 and the positioning box 4. The threaded rod 12 and the positioning box 4 are rotatably connected through the bearing 13. The threaded rod 12 is positioned by the bearing 13, and its normal rotation can be guaranteed at the same time.
[0024] The right end of the threaded rod 12 is fixedly sleeved with a worm gear 14, and the upper end of the worm gear 14 is meshedly connected with a worm 15. The upper end of the relay protection tester body 1 is fixedly installed with a protective shell 16 on the outside of the worm gear 14 and the worm 15. The threaded rod 12 passes through and is rotatably connected to the inside of the protective shell 16. While the protective shell 16 plays a protective role, it can also provide support and fixation for the threaded rod 12 and the worm 15.
[0025] The rear end of the worm 15 is rotatably connected to the inner rear wall of the protective shell 16, and the front end of the worm 15 passes through and is rotatably connected to the front end of the protective shell 16. The front end of the worm 15 is fixedly connected to a knob 17 on the outside of the protective shell 16. The technical solution can simultaneously prevent the two rows of test lines 3 from loosening simply by turning the knob 17. Compared with operating one by one, the work efficiency is greatly improved and it is very convenient.
[0026] A human-machine interactive touch screen 18 is arranged at the inclined surface of the relay protection tester body 1, and the human-machine interactive touch screen 18 can enable the staff to perform the detection work more friendly and conveniently.
[0027] Working principle:
[0028] During the test, after the two ends of the multiple test wires 3 are inserted into the terminal interfaces such as the jack 2 to connect the relay protection tester body 1 to the electrical equipment, the worm 15 is driven to rotate by turning the knob 17, and the worm 15 is driven to rotate by the worm wheel 14, and the threaded rod 12 is driven to rotate by the worm wheel 14. Since the double-sided rack 5 is constrained by the positioning box 4, and the threaded rod 12 is positioned by the bearing 13, the double-sided rack 5 can be driven to move by the rotation of the threaded rod 12, so that the gear 6 can be driven to rotate by the movement of the double-sided rack 5, and the fixed shaft 7 can be driven to rotate by the rotation of the gear 6, and then the locking hook 8 can be driven to rotate by the rotation of the fixed shaft 7, and the locking hook 8 can be made to rotate with the test The annular grooves 9 of the wire 3 are engaged with each other, and the restriction relationship between the locking hook 8 and the annular groove 9 is used to prevent the test wire 3 from loosening. The worm 15 and the worm wheel 14 have a self-locking feature, which avoids the situation where the locking hook 8 shakes when the test wire 3 is subjected to external force, resulting in locking failure. The anti-loosening effect is relatively ideal. At the same time, the technical solution can simultaneously complete the anti-loosening processing of two rows of test wires 3 by simply turning the knob 17. Compared with operating one by one, the work efficiency is greatly improved and it is very convenient. The fitting relationship between the locking hook 8 and the annular groove 9 can also help the staff to check if the test wire 3 is not inserted into place, thereby ensuring the normal progress of subsequent detection work.
[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A relay protection test device with a connection line anti-loosening structure, comprising a relay protection tester body (1), characterized in that: The upper end of the relay protection tester body (1) is provided with four groups of evenly distributed jacks (2), and the jacks (2) are symmetrical in pairs. The upper end of the relay protection tester body (1) is fixedly connected with a positioning box (4) between the jacks (2), and a double-sided rack (5) is slidably installed inside the positioning box (4). The left and right ends of the double-sided rack (5) are meshed and connected with gears (6) at the corresponding jacks (2), and the axis of the gear (6) is fixedly plugged with a fixed shaft (7), and the upper end of the fixed shaft (7) passes through the positioning box (4) and is fixedly connected with a lock hook (8). The upper end of the jack (2) is plugged with a removable test line (3), and the plug of the test line (3) is provided with a ring groove (9) at the position corresponding to the lock hook (8), and the ring groove (9) and the lock hook (8) are adapted to each other.
2. The relay protection test device with a connection line anti-loosening structure according to claim 1, characterized in that: The upper and lower ends of the double-sided rack (5) are provided with limit strips (10) at the corresponding middle positions, and the upper and lower inner walls of the positioning box (4) are provided with sliding grooves (11) near the middle. The limit strips (10) are respectively slidably connected inside the sliding grooves (11), and the length of the sliding grooves (11) is greater than the length of the limit strips (10).
3. The relay protection test device with a connection line anti-loosening structure according to claim 1, characterized in that: A threaded rod (12) is threadedly connected at the middle of the right end of the double-sided rack (5); the threaded rod (12) penetrates the right end of the positioning box (4) and extends to the outside; a bearing (13) is fixedly sleeved at the connection between the threaded rod (12) and the positioning box (4); the threaded rod (12) and the positioning box (4) are rotatably connected via the bearing (13).
4. The relay protection test device with a connection line anti-loosening structure according to claim 3, characterized in that: The right end of the threaded rod (12) is fixedly sleeved with a worm wheel (14), the upper end of the worm wheel (14) is meshingly connected with a worm (15), the upper end of the relay protection tester body (1) is fixedly mounted with a protective shell (16) on the outside of the worm wheel (14) and the worm (15), and the threaded rod (12) passes through and is rotatably connected to the inside of the protective shell (16).
5. The relay protection test device with a connection line anti-loosening structure according to claim 4, characterized in that: The rear end of the worm (15) is rotatably connected to the inner rear wall of the protective shell (16), the front end of the worm (15) penetrates and is rotatably connected to the front end of the protective shell (16), and the front end of the worm (15) is fixedly connected to a knob (17) on the outside of the protective shell (16).
6. The relay protection test device with a connection line anti-loosening structure according to claim 1, characterized in that: A human-machine interactive touch screen (18) is provided at the inclined surface of the relay protection tester body (1).