Shock-resistant terminal block

Abstract

The utility model relates to the technical field of wiring terminal strips, and discloses an anti-impact wiring terminal strip, which comprises a strip seat, a plurality of conducting strips, a cover plate, a plurality of wire pressing screws and two fixing screws, the middle parts of the conducting strips are fixedly connected with the strip seat, and a limiting mechanism is arranged in the strip seat. The limiting mechanism comprises a plurality of first clamping teeth, a plurality of second clamping teeth, two first reset springs, a plurality of clamping plates, two inserting rods and four second reset springs, containing grooves are formed in the two sides of the interior of the row seat, limiting frames are fixedly connected to the front ends of the first reset springs, the second clamping teeth are connected with the limiting frames in a clamped mode, and the clamping plates are fixedly connected with the limiting frames. The two sides of the lower end of the cover plate are fixedly connected with connecting columns. According to the utility model, the first clamping teeth on the wire pressing screw are clamped by the clamping plate through the top block, and the limiting frame is driven to clamp the second clamping teeth on the fixing screw in cooperation with the connecting column, so that the screw is effectively limited, the screw is prevented from loosening in impact or vibration, and the power utilization safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, and in particular to an impact-resistant terminal block. Background Technology

[0002] Terminal blocks, or simply terminal blocks, are accessories used to achieve electrical connections. They act like a "gathering and transfer station" for wires, and are located inside electrical control cabinets, distribution boxes, or various electronic devices. They facilitate the orderly connection of multiple wires, improving wiring efficiency, safety, and future maintainability.

[0003] However, the existing terminal blocks on the market usually rely on screws to press the wires onto the conductive plates. When the equipment is running for a long time or subjected to frequent mechanical shocks and vibrations, the screws are prone to loosening due to the reduction of friction. Once the screws loosen, it can easily lead to poor contact or even disconnection of the wiring.

[0004] Therefore, those skilled in the art have provided an impact-resistant terminal block to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an impact-resistant terminal block. By using the top block in the limiting mechanism to make the clamping plate clamp the first clamping tooth on the wire pressing screw, and cooperating with the connecting column to drive the limiting frame to clamp the second clamping tooth on the fixing screw, the screw is effectively limited to prevent it from loosening under impact or vibration, thereby improving electrical safety.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An impact-resistant terminal block includes a base, multiple conductive plates, a cover plate, multiple wire clamping screws, and two fixing screws. The middle of each conductive plate is fixedly connected to the base. The base has a limiting mechanism inside, which includes multiple first locking teeth, multiple second locking teeth, two first return springs, multiple locking plates, two insert rods, and four second return springs. Receiving grooves are provided on both sides of the base. Limit frames are fixedly connected to the front ends of the first return springs, and the second locking teeth are engaged with the limit frames. Connecting posts are fixedly connected to both sides of the lower end of the cover plate. Multiple top blocks are rotatably connected to the middle of the outer wall of each insert rod. The first locking teeth are engaged with the locking plates. Moving grooves are provided at the four corners of the base. Moving blocks are fixedly connected to the side of each second return spring away from the center of the base. The upper ends of the moving blocks penetrate the base and are engaged with the cover plate.

[0008] The above technical solution uses a top block to hold the card plate in place, which engages with multiple first teeth on the wire pressing screw. In conjunction with the connecting post holding the limiting frame in place, the limiting frame engages with multiple second teeth on the fixing screw. This limits the wire pressing screw and the fixing screw, preventing them from loosening.

[0009] Furthermore, the outer walls of the front and rear ends of the mounting base are provided with multiple wiring grooves, the inner walls on both sides of the wiring grooves are provided with guide grooves, and the outer walls on both sides of the card plate are slidably connected to the guide grooves.

[0010] The above technical solution provides an insertion space for external wires through the wiring groove on the mounting base, while the guide groove on the inner wall of the wiring groove can guide the plate, making it more stable and less prone to deviation during sliding.

[0011] Furthermore, the inner walls of the rear end of the receiving groove are all fixedly connected to the first return spring, and the limiting frames slide inside the receiving groove;

[0012] Through the above technical solution, the first reset spring fixedly connected to the inner wall of the receiving groove can apply elastic force to the limiting frame, so that it automatically resets when there is no external force squeezing, thereby releasing the engagement of the second locking tooth, so as to facilitate the disassembly of the fixing screw.

[0013] Furthermore, the fixing screws are all set in the receiving groove and multiple second retaining teeth are fixed on the outer wall of their screw heads; the wire pressing screws are all threaded onto the conductive sheet and multiple first retaining teeth are fixed on the outer wall of their screw heads.

[0014] The above technical solution allows the mounting bracket to be fixed in the required position by the fixing screw, while the wire clamping screw can clamp and fix the external wire in the wiring groove. It works with the conductive plate to conduct electricity to the wire on the other side, and the second and first locking teeth can prevent the fixing screw and the wire clamping screw from being turned in the opposite direction.

[0015] Furthermore, the lower ends of the outer walls of the rear end of the connecting column all penetrate the seat and fit against the limiting frame, and the inner walls of the moving groove on the side near the center of the seat are all fixedly connected to the second return spring.

[0016] Through the above technical solution, when the connecting column is inserted, it can squeeze the limiting frame to move, thereby locking it in conjunction with the second locking tooth. At the same time, the second return spring can provide elastic force to the moving block, so that the moving block remains locked with the cover plate, and the cover plate is fixed on the seat.

[0017] Furthermore, both sides of the outer wall of the insertion rod are fixedly connected to the row seat, the side of the top block away from the center of the row seat is in contact with the card plate, a toggle block is fixedly connected to the inclined surface at the upper end of the top block, and the flat surface at the upper end of the card plate is in contact with the cover plate.

[0018] The above technical solution prevents the top block from rotating by fitting its upper end against the cover plate, keeping it in a position that holds the plate in place. The actuating block fixedly connected to the top block allows the operator to rotate the top block on the insert rod, thus releasing the plate from its limiting position.

[0019] Furthermore, all the moving blocks slide inside the moving groove, and the side of each moving block away from the center of the row seat extends through the moving groove to the outside of the row seat;

[0020] The above technical solution allows the movable block to extend through the outside of the seat, making it easy for workers to press the movable block, which compresses the second return spring and disengages from the cover plate, thereby releasing the lock on the cover plate and facilitating its opening.

[0021] This utility model has the following beneficial effects:

[0022] This utility model proposes an impact-resistant terminal block. By using a top block in a limiting mechanism to press against a clamping plate, the clamping plate engages with multiple first teeth fixedly connected to the wire clamping screw. In conjunction with a connecting post inserted into a receiving groove to press against a limiting frame, the limiting frame engages with multiple second teeth fixedly connected to the fixing screw. This limits the wire clamping screw and the fixing screw, preventing loosening during long-term operation or frequent mechanical impacts and vibrations, thus improving electrical safety. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of an impact-resistant terminal block proposed in this utility model;

[0024] Figure 2 This is an exploded view of an impact-resistant terminal block proposed in this utility model;

[0025] Figure 3 This is a cross-sectional view of an impact-resistant terminal block proposed in this utility model;

[0026] Figure 4 This is a side sectional view of an impact-resistant terminal block proposed in this utility model;

[0027] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Base plate; 2. Conductive sheet; 3. Wiring groove; 4. Cover plate; 5. Guide groove; 6. Wire clamping screw; 7. Fixing screw; 8. Restriction mechanism; 801. First locking tooth; 802. Second locking tooth; 803. Connecting post; 804. Receiving groove; 805. First return spring; 806. Limiting frame; 807. Locking plate; 808. Insertion rod; 809. Top block; 810. Moving groove; 811. Second return spring; 812. Moving block; 9. Toggle block. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figure 1-5 This utility model provides a specific implementation method:

[0032] An impact-resistant terminal block includes a base 1, multiple conductive plates 2, a cover plate 4, multiple wire clamping screws 6, and two fixing screws 7. The middle part of each conductive plate 2 is fixedly connected to the base 1. The base 1 is provided with a limiting mechanism 8, which includes multiple first locking teeth 801, multiple second locking teeth 802, two first return springs 805, multiple locking plates 807, two insertion rods 808, and four second return springs 811. Receiving grooves 804 are provided on both sides of the interior of the base 1. The front ends of the first return springs 805 are fixedly connected to the base 1. The fixed connection is limited by the frame 806, and the second locking teeth 802 are locked to the frame 806. The two sides of the lower end of the cover plate 4 are fixedly connected to the connecting posts 803. The middle of the outer wall of the rod 808 is rotatably connected to multiple top blocks 809 at intervals. The first locking teeth 801 are locked to the locking plate 807. The four corners of the seat 1 are provided with moving grooves 810. The side of the second return spring 811 away from the center of the seat 1 is fixedly connected to the moving block 812. The upper end of the moving block 812 passes through the seat 1 and is locked to the cover plate 4.

[0033] The top block 809 in the limiting mechanism 8 presses against the clamping plate 807, causing the clamping plate 807 to engage with the multiple first locking teeth 801 fixedly connected to the wire clamping screw 6. In conjunction with the connecting post 803 inserted into the receiving groove 804 to press against the limiting frame 806, the limiting frame 806 engages with the multiple second locking teeth 802 fixedly connected to the fixing screw 7. This limits the wire clamping screw 6 and the fixing screw 7, preventing loosening during long-term operation or frequent mechanical impacts and vibrations, thus improving electrical safety.

[0034] Multiple wiring slots 3 are provided on the outer walls of the front and rear ends of the mounting base 1. Guide slots 5 are provided on the inner walls of both sides of the wiring slots 3. The outer walls of both sides of the clamping plate 807 are slidably connected to the guide slots 5. The wiring slots 3 on the mounting base 1 provide space for the insertion of external wires, while the guide slots 5 on the inner walls of the wiring slots 3 guide the clamping plate 807, making it more stable and less prone to displacement during sliding. The inner walls of the rear ends of the receiving groove 804 are fixedly connected to the first return spring 805. The limiting frame 806 slides inside the receiving groove 804. The first return spring 805 fixedly connected to the inner wall of the receiving groove 804 can apply elastic force to the limiting frame 806, so that it can slide without external pressure. The system automatically resets, thus releasing the engagement of the second locking teeth 802 to facilitate the removal of the fixing screws 7. The fixing screws 7 are all located within the receiving groove 804, and multiple second locking teeth 802 are fixed to the outer wall of their screw heads. The wire clamping screws 6 are all threaded onto the conductive sheet 2, and multiple first locking teeth 801 are fixed to the outer wall of their screw heads. The fixing screws 7 can fix the mounting base 1 in the desired position, while the wire clamping screws 6 can press and fix the external wires into the wiring groove 3, allowing the conductive sheet 2 to conduct electricity with the wires on the other side. The second locking teeth 802 and first locking teeth 801 prevent the fixing screws 7 and wire clamping screws 6 from being twisted in the opposite direction. The lower end of the outer wall of the rear end of the connecting post 803 penetrates the mounting base 1 and connects with... The limiting frame 806 fits in place, and the inner wall of the moving groove 810 near the center of the seat 1 is fixedly connected to the second return spring 811. When the connecting post 803 is inserted, it can squeeze the limiting frame 806 to move, thereby locking it in conjunction with the second locking tooth 802. At the same time, the second return spring 811 can provide elastic force to the moving block 812, keeping the moving block 812 locked in place with the cover plate 4, thus fixing the cover plate 4 on the seat 1. Both sides of the outer wall of the insert rod 808 are fixedly connected to the seat 1. The side of the top block 809 away from the center of the seat 1 fits in place with the locking plate 807. The inclined surface at the upper end of the top block 809 is fixedly connected to the actuating block 9. The flat surface at the upper end of the locking plate 807 fits in place with the cover plate 4. The upper end of the top block 809 fits against the cover plate 4, preventing the top block 809 from rotating and keeping it in a position that presses against the card plate 807. The actuating block 9 fixedly connected to the top block 809 allows the operator to rotate the top block 809 on the insertion rod 808, releasing the limiting state of the card plate 807. The moving blocks 812 all slide inside the moving groove 810. The side of the moving blocks 812 away from the center of the row seat 1 passes through the moving groove 810 to the outside of the row seat 1. By passing the moving blocks 812 to the outside of the row seat 1, it is easy for the operator to press the moving blocks 812, causing the moving blocks 812 to compress the second return spring 811 and disengage from the cover plate 4, thereby releasing the lock on the cover plate 4 and making it easy to open the cover plate 4.

[0035] Working principle: When using this impact-resistant terminal block, the operator inserts a screwdriver into the receiving groove 804 and tightens the fixing screw 7. At this time, under the action of the first return spring 805, the limit frame 806 releases the locking state of the second locking tooth 802, fixing the entire terminal block in the required position. Then, the wire is inserted into the corresponding wiring groove 3, and the wire clamping screw 6 is tightened and fixed with a screwdriver. After the wiring is completed, the operator presses down the top block 809, pressing against the locking plate 807, so that the locking plate 807 is locked with the first locking tooth 801, preventing the wire clamping screw 6 from reversing. Then, the operator inserts the cover plate 4 into the receiving groove 804 through the connecting post 803. At this time, the connecting post 803 presses against the limit frame 806, keeping it locked with the second locking tooth 802, preventing the fixing screw 7 from reversing. At the same time, the second return spring 811 acts on the moving block 812, keeping the moving block 812 locked with the cover plate 4, fixing the cover plate 4 on the base 1.

[0036] The following points should be noted in this article:

[0037] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0038] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An impact-resistant terminal block, comprising a block seat (1), a plurality of conductive pieces (2), a cover plate (4), a plurality of wire pressing screws (6) and two fixing screws (7), characterized in that: The middle part of the conductive sheet (2) is fixedly connected with the row seat (1), the inside of the row seat (1) is provided with a limiting mechanism (8), the limiting mechanism (8) comprises a plurality of first clamping teeth (801), a plurality of second clamping teeth (802), two first reset springs (805), a plurality of clamping plates (807), two inserting rods (808) and four second reset springs (811), both sides of the inside of the row seat (1) are provided with containing grooves (804), the front ends of the first reset springs (805) are fixedly connected with limiting frames (806), the second clamping teeth (802) are connected with the limiting frames (806) in a clamped mode, the lower ends of the cover plates (4) are fixedly connected with connecting columns (803) on both sides, the middle parts of the rod body outer walls of the inserting rods (808) are rotatably connected with a plurality of jacks (809) at intervals, the first clamping teeth (801) are connected with the clamping plates (807) in a clamped mode, the four corners of the inside of the row seat (1) are provided with moving grooves (810), the sides, away from the centers of the row seats (1), of the second reset springs (811) are fixedly connected with moving blocks (812), and the upper ends of the moving blocks (812) penetrate through the row seats (1) and are connected with the cover plates (4) in a clamped mode.

2. An impact-resistant terminal block according to claim 1, characterized in that: The outer walls of the front ends and the rear ends of the row seat (1) are provided with a plurality of wiring grooves (3), the inner walls of the two sides of the wiring grooves (3) are provided with guide grooves (5), and the outer walls of the two sides of the clamping plates (807) are connected with the guide grooves (5) in a sliding mode.

3. An impact-resistant terminal block according to claim 1, characterized in that: The inner walls of the rear ends of the containing grooves (804) are fixedly connected with the first reset springs (805), and the limiting frames (806) slide in the interiors of the containing grooves (804).

4. An impact-resistant terminal block according to claim 1, characterized in that: The fixed screws (7) are arranged in the containing grooves (804) and fix the plurality of second clamping teeth (802) on the outer walls of the screw heads, and the wire pressing screws (6) are threadedly connected with the conductive sheets (2) and fix the plurality of first clamping teeth (801) on the outer walls of the screw heads.

5. An impact-resistant terminal block according to claim 1, characterized in that: The lower ends of the rear end outer walls of the connecting columns (803) penetrate through the row seats (1) and are attached to the limiting frames (806), and the inner walls of the sides, close to the centers of the row seats (1), of the moving grooves (810) are fixedly connected with the second reset springs (811).

6. An impact-resistant terminal block according to claim 1, characterized in that: The rod body outer walls of the inserting rods (808) are fixedly connected with the row seats (1) on both sides, the sides, away from the centers of the row seats (1), of the jacks (809) are attached to the clamping plates (807), and the inclined surfaces of the upper ends of the jacks (809) are fixedly connected with poking blocks (9), and the upper ends of the clamping plates (807) are attached to the cover plates (4).

7. An impact-resistant terminal block according to claim 1, characterized in that: The moving blocks (812) slide in the interiors of the moving grooves (810), and the sides, away from the centers of the row seats (1), of the moving blocks (812) penetrate through the moving grooves (810) to the outside of the row seats (1).

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