Single pressure spring type tulip contact
By incorporating a stabilizing component into the spline contact and utilizing the cooperation between the threaded rod and the stabilizing rod, the problem of bolt loosening caused by equipment vibration was solved, thereby improving the stability of the spline contact.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGSHUO ELECTRIC CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-05-19
AI Technical Summary
The bolts of the single-piece spring-loaded plum blossom contact may loosen due to equipment vibration during installation, causing instability in use.
By incorporating stabilizing components in the plum blossom contact, including structures such as mounting grooves, stationary contacts, threaded rods, and stabilizing rods, the cooperation between the threaded rod and the stabilizing rod prevents the threaded rod from loosening within the threaded groove, thereby improving stability.
It effectively prevents bolts from loosening due to equipment vibration and improves the stability of the plum blossom contact and stationary contact.
Smart Images

Figure CN224264047U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plum blossom contact technology, specifically to a single-piece spring-loaded plum blossom contact. Background Technology
[0002] The connection between the moving and stationary contacts on the power station switchgear and handcart is achieved through a plum blossom contact. The plum blossom contact is specifically composed of a bracket, multiple contact petals arranged circumferentially, and springs. The plum blossom contact petals are installed behind the bracket and tightened by springs to ensure that the plum blossom contact is firmly connected to the moving contact arm.
[0003] When installing a single-piece spring-loaded plum blossom contact, it is often necessary to fix the base of the plum blossom contact. After fixing the base with bolts, the bolts may loosen due to equipment vibration, causing instability of the plum blossom contact during use. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a single-piece spring-loaded plum blossom contact, which solves the problem that when installing a single-piece spring-loaded plum blossom contact, it is often necessary to fix the base of the plum blossom contact. After fixing the base with bolts, the bolts may loosen due to equipment vibration, causing instability of the plum blossom contact during use.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A single-piece spring-loaded plum blossom contact includes: a circuit breaker body, the outer surface of which is provided with two outer shells; the interior of which is provided with a connecting piece and a connecting assembly; a first mounting block is fixedly installed on the bottom surface of the connecting piece; the bottom surface of the first mounting block is provided with a plum blossom contact; and a stabilizing component, which is disposed on the top surface of the connecting assembly to maintain the stability of the plum blossom contact during use. The stabilizing component includes: a mounting groove, which is formed on the top surface of the connecting assembly; a stationary contact is disposed inside the mounting groove; second mounting blocks are fixedly installed on both sides of the stationary contact; a second connecting hole is formed on one side of the left second mounting block; a first connecting hole is formed on one side of the right second mounting block; a fixing plate is provided on both sides of the stationary contact; a threaded groove is formed on one side of the fixing plate and one side of the connecting assembly; a threaded rod is threadedly connected to the inner circular wall of the threaded groove; a limiting hole is formed on the outer circular wall of the threaded rod; a stabilizing rod is movably sleeved inside the first connecting hole; and the stabilizing rod is movably sleeved with the limiting hole.
[0007] To facilitate flexible installation of the stationary contact, as a preferred embodiment of this utility model, a single-piece spring-loaded plum blossom contact is provided with limiting rods fixedly installed on both sides of the stationary contact, and a movable hole is provided on one side of the fixed plate, with the limiting rods movably connected to the movable hole.
[0008] To prevent the stabilizer bar from being pulled out of the limiting hole, as a preferred embodiment of this invention, a rubber ring is fixedly sleeved on the inner circular wall of the second connecting hole, the rubber ring being movably sleeved with the stabilizer bar, and several soft blocks are fixedly installed on the outer circular wall of the stabilizer bar.
[0009] To improve the anti-loosening effect of the threaded rod, as a single-piece spring-type plum blossom contact of this utility model, preferably, a connecting ring is movably sleeved on the outer circular wall surface of the threaded rod.
[0010] In order to disassemble or rotate the threaded rod, as a single-piece spring-type plum blossom contact of this utility model, preferably, two fixing blocks are fixedly installed on the outer circular wall of the threaded rod.
[0011] To prevent the stationary contact from wobbling inside the mounting slot, as a single-piece spring-loaded plum blossom contact of this utility model, it is preferable that rubber pads are fixedly installed on both sides of the stationary contact.
[0012] To prevent the stabilizer bar from wobbling inside the limiting hole, as a single-piece spring-type plum blossom contact of this utility model, preferably, the inner circular wall surface of the limiting hole is in contact with the outer circular wall surface of the stabilizer bar.
[0013] In summary, the present invention has the following main advantages:
[0014] By setting a threaded rod, when installing the stationary contact, the stationary contact can be placed inside the mounting groove first, and then the threaded rod can be screwed into the threaded groove. After the threaded rod is screwed into the threaded groove, the stabilizing rod can be moved next to the threaded rod inside the first connecting hole, and the stabilizing rod can be passed into the limiting hole on the threaded rod. The stabilizing rod entering the limiting hole can limit the threaded rod. When vibration occurs in the circuit breaker body, it can prevent the threaded rod from loosening inside the threaded groove. By setting the threaded rod to prevent loosening, the stability of the sprite contact and the stationary contact when used together can be improved. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the connecting piece structure of this utility model;
[0017] Figure 3This is a schematic diagram of the plum blossom contact structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the first mounting block structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the second mounting block structure of this utility model;
[0020] Figure 6 This is a schematic diagram of the fixing plate structure of this utility model.
[0021] Reference numerals: 1. Circuit breaker body; 2. Housing; 3. Connecting piece; 4. Connecting assembly; 5. First mounting block; 6. Mounting groove; 7. Stationary contact; 8. Rubber pad; 9. Plexicon contact; 10. Second mounting block; 11. First connecting hole; 12. Second connecting hole; 13. Rubber ring; 14. Stabilizing rod; 15. Soft block; 16. Threaded rod; 17. Restricting hole; 18. Fixing block; 19. Fixing plate; 20. Movable hole; 21. Restricting rod; 22. Threaded groove; 23. Connecting ring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1
[0024] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6A single-piece spring-loaded plum blossom contact includes a circuit breaker body 1. Two outer shells 2 are provided on the outer surface of the circuit breaker body 1. A connecting piece 3 and a connecting assembly 4 are provided inside the circuit breaker body 1. A first mounting block 5 is fixedly installed on the bottom surface of the connecting piece 3, and a plum blossom contact 9 is provided on the bottom surface of the first mounting block 5. A stabilizing component is provided on the top surface of the connecting assembly 4 to maintain the stability of the plum blossom contact 9 during use. The stabilizing component includes a mounting groove 6, which is located on the top surface of the connecting assembly 4. A stationary contact 7 is provided inside the mounting groove 6. Second mounting blocks 10 are fixedly installed on both sides of the stationary contact 7. A second connecting hole 12 is provided on one side of the left second mounting block 10, and a first connecting hole 11 is provided on one side of the right second mounting block 10. Fixing plates 19 are provided on both sides of the stationary contact 7. Threaded grooves 22 are provided on one side of the fixing plate 19 and one side of the connecting assembly 4. A threaded rod 16 is threadedly connected to the inner circular wall of the threaded groove 22. A limiting hole 17 is provided on the circular wall surface. A stabilizing rod 14 is movably sleeved inside the first connecting hole 11. The stabilizing rod 14 is movably sleeved with the limiting hole 17. By providing a threaded rod 16, when installing the stationary contact 7, the stationary contact 7 can be placed inside the mounting groove 6 first. At this time, the fixing plate 19 on the stationary contact 7 will abut against the side of the connecting assembly 4. Then, the threaded rod 16 can be screwed into the threaded groove 22. After the threaded rod 16 is screwed into the threaded groove 22, the first connecting hole 11 can be... The stabilizer 14 is moved from the inside of the hole 11 to the threaded rod 16. The stabilizer 14 is then inserted into the limiting hole 17 on the threaded rod 16. The stabilizer 14, which enters the limiting hole 17, can limit the threaded rod 16. When vibration occurs in the circuit breaker body 1, it can prevent the threaded rod 16 from loosening inside the thread groove 22. By setting the threaded rod 16 to prevent loosening, the stability of the plum blossom contact 9 and the stationary contact 7 when used together can be improved. The plum blossom contact 9 is a single-piece spring-loaded plum blossom contact.
[0025] Example 2
[0026] Based on the above embodiment 1, refer to Figure 3 , Figure 4 , Figure 5 and Figure 6Limiting rods 21 are fixedly installed on both sides of the stationary contact 7. A movable hole 20 is opened on one side of the fixing plate 19. The limiting rods 21 are movably connected to the movable hole 20. By setting the limiting rods 21, the fixing plate 19 can rotate on the limiting rods 21 through the movable hole 20, which facilitates the flexible installation of the stationary contact 7. A rubber ring 13 is fixedly sleeved on the inner circular wall of the second connecting hole 12. The rubber ring 13 is movably sleeved on the stabilizing rod 14. Several soft blocks 15 are fixedly installed on the outer circular wall of the stabilizing rod 14. By setting the rubber ring 13, after the stabilizing rod 14 is inserted into the interior of the limiting hole 17, the stabilizing rod 14 can be moved to insert into the interior of the rubber ring 13 in the second connecting hole 12. The stabilizing rod 14 is equipped with multiple soft blocks 15, which are elastic and can be deformed by compression to move through the rubber ring 13 to the left side of the second mounting block 10. On the other side, the stabilizing rod 14 passing through the limiting hole 17 can be restricted, preventing the stabilizing rod 14 from being pulled out of the limiting hole 17. The outer circular wall of the threaded rod 16 is movably fitted with a connecting ring 23. By setting the connecting ring 23, the connecting ring 23 can improve the anti-loosening effect of the threaded rod 16. Two fixing blocks 18 are fixedly installed on the outer circular wall of the threaded rod 16. By setting the fixing blocks 18, the threaded rod 16 can be disassembled or rotated for adjustment. Rubber pads 8 are fixedly installed on both sides of the stationary contact 7. By setting the rubber pads 8, the stability of the stationary contact 7 after it is installed in the mounting groove 6 can be improved, preventing the stationary contact 7 from shaking inside the mounting groove 6. The inner circular wall of the limiting hole 17 fits against the outer circular wall of the stabilizing rod 14, preventing the stabilizing rod 14 from shaking inside the limiting hole 17 when vibration occurs inside the circuit breaker body 1.
[0027] Working principle: Please refer to Figures 1-6As shown, by setting the threaded rod 16, when installing the stationary contact 7, the stationary contact 7 can be placed inside the mounting groove 6 first. At this time, the fixing plate 19 on the stationary contact 7 will abut against the connecting assembly 4. Then, the threaded rod 16 can be screwed into the threaded groove 22. After the threaded rod 16 is screwed into the threaded groove 22, the stabilizing rod 14 can be moved next to the threaded rod 16 inside the first connecting hole 11. The stabilizing rod 14 is then passed into the limiting hole 17 on the threaded rod 16. The stabilizing rod 14 entering the limiting hole 17 can limit the threaded rod 16. After the stabilizing rod 14 is passed into the limiting hole 17, it can... Next, the stabilizer bar 14 is moved so that it passes through the rubber ring 13 inside the second connecting hole 12. The stabilizer bar 14 is equipped with multiple soft blocks 15 and is elastic. It can be deformed by squeezing and passes through the rubber ring 13 to move to the other side of the second mounting block 10 on the left. This can restrict the stabilizer bar 14 passing through the limiting hole 17 and prevent the stabilizer bar 14 from being pulled out of the limiting hole 17. When vibration occurs in the circuit breaker body 1, it can prevent the threaded rod 16 from loosening inside the thread groove 22. By setting the threaded rod 16 to prevent loosening, the stability of the plum blossom contact 9 and the stationary contact 7 when they are used together can be improved.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A single-piece spring-loaded plum blossom contact, characterized in that, include: The circuit breaker body (1) has two outer shells (2) on its outer surface. The circuit breaker body (1) has a connecting piece (3) and a connecting group (4) inside. A first mounting block (5) is fixedly installed on the bottom surface of the connecting piece (3). A stylus contact (9) is provided on the bottom surface of the first mounting block (5). A stabilizing component is disposed on the top surface of the connecting group (4) to maintain the stability of the plum blossom contact (9) during use. The stabilizing component includes: a mounting groove (6) formed on the top surface of the connecting group (4), a stationary contact (7) disposed inside the mounting groove (6), and second mounting blocks (10) fixedly mounted on both sides of the stationary contact (7). A second connecting hole (12) is provided on one side of the second mounting block (10) on the left side, and a second connecting hole (12) is provided on the second mounting block (10) on the right side. A first connecting hole (11) is provided on one side of the stationary contact (7). Fixing plates (19) are respectively provided on both sides of the stationary contact (7). Threaded grooves (22) are provided on one side of the fixing plate (19) and one side of the connecting group (4). A threaded rod (16) is threadedly connected to the inner circular wall of the threaded groove (22). A limiting hole (17) is provided on the outer circular wall of the threaded rod (16). A stabilizing rod (14) is movably sleeved inside the first connecting hole (11). The stabilizing rod (14) is movably sleeved with the limiting hole (17).
2. The single-piece spring-loaded plum blossom contact according to claim 1, characterized in that: Limiting rods (21) are fixedly installed on both sides of the stationary contact (7), and a movable hole (20) is opened on one side of the fixed plate (19). The limiting rods (21) are movably connected to the movable hole (20).
3. A single-piece spring-loaded plum blossom contact according to claim 1, characterized in that: A rubber ring (13) is fixedly sleeved on the inner circular wall of the second connecting hole (12). The rubber ring (13) is movably sleeved with the stabilizing rod (14). Several soft blocks (15) are fixedly installed on the outer circular wall of the stabilizing rod (14).
4. A single-piece spring-loaded plum blossom contact according to claim 1, characterized in that: The outer circular wall of the threaded rod (16) is movably fitted with a connecting ring (23).
5. A single-piece spring-loaded plum blossom contact according to claim 1, characterized in that: Two fixing blocks (18) are fixedly installed on the outer circular wall of the threaded rod (16).
6. A single-piece spring-loaded plum blossom contact according to claim 1, characterized in that: Rubber pads (8) are fixedly installed on both sides of the stationary contact (7).
7. A single-piece spring-loaded plum blossom contact according to claim 1, characterized in that: The inner circular wall of the limiting hole (17) is in contact with the outer circular wall of the stabilizing rod (14).