Protection device for preventing malfunction of quick-acting oil pressure relay
By designing a protective mechanism in the quick-acting hydraulic relay to adjust the ventilation cross-section and ventilation area, the malfunctioning caused by dirt blockage is solved, the stable operation of the relay is ensured, and the frequent tripping of the transformer is reduced.
Patent Information
- Application Number
- CN202323318676.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-06
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2033-12-06
AI Technical Summary
Existing quick-acting hydraulic relays are prone to insufficient ventilation due to dirt blockage, loss of balance function, and malfunction, resulting in frequent tripping of the transformer, affecting use.
A protective device for preventing the malfunction of the quick-acting hydraulic relay is designed. By setting up a protective mechanism at the bottom of the mounting body, including components such as pin rods, guide seats, springs and limit plates, the ventilation section is adjusted to ensure that the relay is always in effective ventilation. and adjust the ventilation area by adjusting the number of pin rods to prevent malfunction.
Effectively prevent malfunctions caused by insufficient ventilation, reduce frequent tripping of the transformer, reduce unnecessary losses, and ensure the stability and reliability of the relay during use.
Smart Images
Figure CN222320099U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fast-acting oil pressure relays, in particular to a protection device for preventing a fast-acting oil pressure relay from malfunctioning. Background Art
[0002] The fast-acting oil pressure relay is a new type of transformer oil tank pressure relay protection device. It uses the dynamic pressure growth rate caused by accidents in the oil tank to operate. The faster the oil pressure increases, the faster the action. Since the oil pressure wave propagates very quickly in the transformer oil, the fast-acting oil pressure relay is sensitive and accurate in action. It can quickly send out signals and cut off the power supply. If a fast-acting oil pressure relay is installed on the transformer, once a malignant short circuit occurs inside, it can prevent the oil tank from exploding.
[0003] When the existing fast-acting hydraulic relay is in use, since the relay is a precision interconnecting device, if it is blocked by dirt, it may cause the relay to lose its balancing function due to insufficient ventilation, which may easily cause the relay to malfunction and cause the transformer to trip frequently, affecting subsequent use and failing to meet social needs. Therefore, a protection device for preventing the fast-acting hydraulic relay from malfunctioning is proposed to solve the above problems. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a protective device for preventing a fast-acting oil pressure relay from malfunctioning. The device has advantages such as adjusting the ventilation cross-section, and solves the problem that the fast-acting oil pressure relay may be clogged with dirt, which may cause the relay to lose its balancing function due to insufficient ventilation, easily causing the relay to malfunction and resulting in frequent tripping of the transformer, affecting subsequent use.
[0005] In order to achieve the purpose of adjusting the ventilation cross section, the utility model provides the following technical solutions: a protection device for preventing a quick-acting oil pressure relay from malfunctioning, comprising a mounting body, an air cavity is arranged inside the mounting body, a mounting block is fixedly mounted on the inner wall of the mounting body, and a protection mechanism is arranged at the bottom of the mounting body;
[0006] The protection mechanism includes a mounting head, a mounting head is fixedly installed inside the mounting block, a pressure stabilizing block is fixedly installed on the bottom of the mounting head, a mounting plate is fixedly installed on the bottom of the pressure stabilizing block, a working block is fixedly installed on the bottom of the mounting plate, a ventilation block is fixedly installed on the surface of the working block, an exhaust pipe is fixedly installed on the bottom of the ventilation block, a latch groove is opened on the surface of the working block, a latch rod is fixedly installed inside the latch groove, a pair of guide seats are fixedly installed inside the working block, a spring is fixedly installed inside the guide seat, a limit plate is slidably installed inside the guide seat, a connecting rod is fixedly connected to the surface of the limit plate, a pressure plate is fixedly installed at the top of the connecting rod, a blocking block is fixedly installed on the right side of the pressure plate, a working plate is fixedly installed on the surface of the connecting rod, a sealing plate is fixedly connected to the top of the working plate, and a ventilation hole is opened inside the pressure stabilizing block.
[0007] Furthermore, the mounting head is fixedly mounted inside the mounting block by means of threads, and a vent is provided on the surface of the mounting head.
[0008] Furthermore, the voltage stabilizing block is in communication with the working block, and the working block is fitted with the sealing plate.
[0009] Furthermore, the spring is fixedly connected to the limiting plate.
[0010] Furthermore, the connecting rod is slidably mounted inside the guide seat.
[0011] Furthermore, the blocking block is installed in a chimeric pattern with the ventilation block, and the outline size of the blocking block is consistent with the inner diameter size of the ventilation block.
[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0013] 1. The protection device for preventing the fast-acting oil pressure relay from malfunctioning is provided with a protection mechanism at the bottom of the mounting body, which can protect the relay from being in an effective ventilation state during testing and transportation. The effective ventilation area of the relay is ensured by embedding the latch rod, and the effective balance area of the fast-acting relay is adjusted by adjusting the number of latch rods during actual use to prevent malfunction caused by dirt, insufficient ventilation and other factors, resulting in frequent tripping of the transformer and unnecessary losses. The problem that the fast-acting oil pressure relay is clogged with dirt, which may cause the relay to lose its balance function due to insufficient ventilation, easily causing the relay to malfunction, resulting in frequent tripping of the transformer and affecting subsequent use is solved.
[0014] 2. The protection device for preventing the quick-acting oil pressure relay from malfunctioning is provided with a protection mechanism at the bottom of the mounting body. By inserting the latch rod into the latch groove in sequence, the working plate moves to the left under the squeezing of the latch rod. As the connecting rod slides in the guide seat, the blocking block and the sealing plate move to the left under the traction of the working plate and the connecting rod, thereby adjusting the effective ventilation area of the ventilation hole and the ventilation block, solving the problem that the quick-acting oil pressure relay is clogged with dirt, which may cause the relay to lose its balancing function due to insufficient ventilation, easily causing the relay to malfunction, resulting in frequent tripping of the transformer and affecting subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is the structural plan of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the installation head of the utility model;
[0018] Figure 4 It is a structural schematic diagram of the protection mechanism of the utility model;
[0019] Figure 5 It is a structural schematic diagram of the latch rod of the utility model.
[0020] In the figure: 1. mounting body; 2. air cavity; 3. mounting block; 4. protection mechanism; 401. mounting head; 402. voltage stabilizing block; 403. mounting plate; 404. working block; 405. ventilation block; 406. exhaust pipe; 407. latch slot; 408. latch rod; 409. guide seat; 410. spring; 411. limit plate; 412. connecting rod; 413. pressure plate; 414. blocking block; 415. working plate; 416. sealing plate; 417. ventilation hole. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0022] See also Figure 1-5 In this embodiment, a protection device for preventing a fast-acting oil pressure relay from malfunctioning includes a mounting body 1, an air cavity 2 is provided inside the mounting body 1, a mounting block 3 is fixedly installed on the inner wall of the mounting body 1, and a protection mechanism 4 is provided at the bottom of the mounting body 1;
[0023] The protection mechanism 4 includes a mounting head 401, the mounting head 401 is fixedly mounted inside the mounting block 3, a voltage stabilizing block 402 is fixedly mounted on the bottom of the mounting head 401, a mounting plate 403 is fixedly mounted on the bottom of the voltage stabilizing block 402, a working block 404 is fixedly mounted on the bottom of the mounting plate 403, a ventilation block 405 is fixedly mounted on the surface of the working block 404, an exhaust pipe 406 is fixedly mounted on the bottom of the ventilation block 405, a latch groove 407 is opened on the surface of the working block 404, a latch rod 408 is fixedly mounted inside the latch groove 407, and the working block 404 A pair of guide seats 409 are fixedly installed inside, a spring 410 is fixedly installed inside the guide seat 409, a limit plate 411 is slidably installed inside the guide seat 409, a connecting rod 412 is fixedly connected to the surface of the limit plate 411, a pressure plate 413 is fixedly installed at the top of the connecting rod 412, a blocking block 414 is fixedly installed on the right side of the pressure plate 413, a working plate 415 is fixedly installed on the surface of the connecting rod 412, a sealing plate 416 is fixedly connected to the top of the working plate 415, and a ventilation hole 417 is opened inside the voltage stabilizing block 402.
[0024] When implementing, follow these steps:
[0025] 1) First, fix the mounting head 401 inside the mounting body 1 through threads;
[0026] 2) Then, the working plate 415 is pressed to move to the left by embedding the latch rod 408;
[0027] 3) The block 414 and the sealing plate 416 are moved to the left by the pulling of the working plate 415 and the connecting rod 412;
[0028] 4) Finally, the effective balancing area of the quick-acting relay is adjusted by adjusting the number of latch rods 408 to prevent frequent tripping of the transformer due to malfunction caused by dirt, insufficient ventilation, etc.
[0029] To sum up, the protection device for preventing the fast-acting oil pressure relay from malfunctioning is provided with a protection mechanism 4 at the bottom of the mounting body 1, which can protect the relay from being in an effective ventilation state during testing and transportation. The effective ventilation area of the relay is guaranteed by embedding the latch rod 408, and the effective balance area of the fast-acting relay is adjusted by adjusting the number of latch rods 408 during actual use to prevent malfunction caused by dirt, insufficient ventilation and other factors, resulting in frequent tripping of the transformer and unnecessary losses. The problem that the fast-acting oil pressure relay may be clogged with dirt, which may cause the relay to lose its balance function due to insufficient ventilation, which may easily cause the relay to malfunction, resulting in frequent tripping of the transformer and affecting subsequent use is solved.
[0030] In addition, a protection mechanism 4 is provided at the bottom of the mounting body 1. By inserting the latch rod 408 into the latch groove 407 in sequence, the working plate 415 moves to the left under the squeezing of the latch rod 408. Since the connecting rod 412 slides in the guide seat 409, the blocking block 414 and the sealing plate 416 move to the left under the traction of the working plate 415 and the connecting rod 412, thereby adjusting the effective ventilation area of the ventilation hole 417 and the ventilation block 405, thereby solving the problem that the fast-acting oil pressure relay is clogged with dirt, which may cause the relay to lose its balancing function due to insufficient ventilation, easily causing the relay to malfunction, resulting in frequent tripping of the transformer and affecting subsequent use.
[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A protection device for preventing a quick-acting oil pressure relay from malfunctioning, comprising a mounting body (1), characterized in that: An air cavity (2) is provided inside the installation body (1), a mounting block (3) is fixedly mounted on the inner wall of the installation body (1), and a protective mechanism (4) is provided at the bottom of the installation body (1); The protection mechanism (4) comprises a mounting head (401), the mounting head (401) is fixedly mounted inside the mounting block (3), a voltage stabilizing block (402) is fixedly mounted on the bottom of the mounting head (401), a mounting plate (403) is fixedly mounted on the bottom of the voltage stabilizing block (402), a working block (404) is fixedly mounted on the bottom of the mounting plate (403), a ventilation block (405) is fixedly mounted on the surface of the working block (404), an exhaust pipe (406) is fixedly mounted on the bottom of the ventilation block (405), a latch groove (407) is provided on the surface of the working block (404), a latch rod (408) is fixedly mounted inside the latch groove (407), and the working block ( A pair of guide seats (409) are fixedly installed inside the pressure stabilizing block (402), a spring (410) is fixedly installed inside the guide seat (409), a limit plate (411) is slidably installed inside the guide seat (409), a connecting rod (412) is fixedly connected to the surface of the limit plate (411), a pressure plate (413) is fixedly installed at the top of the connecting rod (412), a blocking block (414) is fixedly installed on the right side of the pressure plate (413), a working plate (415) is fixedly installed on the surface of the connecting rod (412), a sealing plate (416) is fixedly connected to the top of the working plate (415), and a ventilation hole (417) is opened inside the pressure stabilizing block (402).
2. A protection device for preventing a quick-acting oil pressure relay from malfunctioning according to claim 1, characterized in that: The mounting head (401) is fixedly mounted inside the mounting block (3) by means of threads, and a ventilation hole is provided on the surface of the mounting head (401).
3. A protection device for preventing a quick-acting oil pressure relay from malfunctioning according to claim 1, characterized in that: The voltage stabilizing block (402) is in communication with the working block (404), and the working block (404) is fitted and installed with the sealing plate (416).
4. A protection device for preventing a quick-acting oil pressure relay from malfunctioning according to claim 1, characterized in that: The spring (410) is fixedly connected to the limiting plate (411).
5. A protection device for preventing a quick-acting oil pressure relay from malfunctioning according to claim 1, characterized in that: The connecting rod (412) is slidably mounted inside the guide seat (409).
6. A protection device for preventing a quick-acting oil pressure relay from malfunctioning according to claim 1, characterized in that: The blocking block (414) is mounted in a chimeric arrangement with the ventilation block (405), and the outline size of the blocking block (414) is consistent with the inner diameter size of the ventilation block (405).