Waterproof wiring terminal

Abstract

The utility model discloses a waterproof wiring terminal, which belongs to the technical field of wiring terminals and comprises a waterproof shell, a sliding guide groove is arranged in the waterproof shell, and table-shaped jacks are arranged at two ends of the waterproof shell; the sliding connecting piece is arranged in the sliding guide groove in a sliding manner; the end part of the cable is wrapped to form a connecting plug; and the table-shaped sealing plug is sleeved outside the cable and is plugged in the table-shaped jack through a pressing buckle which is fixedly connected with the waterproof shell. According to the technical scheme, the waterproof shell is integrally formed, only the two ends of the waterproof shell are provided with the table-shaped insertion holes for cable connection, the whole waterproof shell has good waterproof sealing performance, the table-shaped insertion holes are plugged through the table-shaped sealing plugs, and under the pressure action of the pressing buckles, the table-shaped sealing plugs can be tightly combined with the table-shaped insertion holes and the cables in a large area, so that the waterproof performance is improved. In this way, the waterproof sealing effect of the unique opening is ensured, meanwhile, large static friction force can be generated between the cable and the table-shaped sealing plug, and therefore the drawing performance of the cable is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, specifically a waterproof terminal block. Background Technology

[0002] Terminal blocks are accessories used to achieve electrical connections and play a crucial role in circuits. They typically consist of an insulating base, conductive components, and fasteners. The insulating base ensures electrical safety, the conductive components carry current, and the fasteners ensure a secure connection. Electrical connections are quickly and reliably established by inserting wires into the terminal blocks and tightening them with screws or other fasteners. Terminal blocks come in various types, such as pluggable and barrier types, and are widely used in power, electronics, and communications fields, facilitating circuit installation, maintenance, and repair.

[0003] Utility model patent CN218182492U discloses a terminal block comprising a mounting shell and a protective cap. A wiring cavity is formed within the mounting shell, with at least one wiring port at each end of the cavity. Each wiring port is provided with a wiring sleeve communicating with it. The number of protective caps corresponds to the number of wiring sleeves. Each protective cap includes a mounting sleeve and a protective element. One end of the mounting sleeve is detachably connected to the wiring sleeve, and the other end of the mounting sleeve is connected to the protective element. The protective element is fitted around the outer periphery of the conductive wire and has a through hole for the conductive wire to pass through. This terminal block, by providing wiring sleeves on the mounting shell for easy wiring and by connecting protective caps to the wiring sleeves, enables the protective caps to provide waterproof sealing or protection for the conductive wire, thereby improving the protective performance of the terminal block and ensuring a stable and reliable structure.

[0004] While the aforementioned terminal blocks can provide waterproof sealing and wire protection through their protective caps, their outer shell is composed of two symmetrical shells joined together, lacking waterproofing measures at the flat end. The connection is only achieved through a press-fitting mechanism with the protective cap at the end, making it difficult to guarantee a truly waterproof seal. At the connection end, the terminal blocks achieve waterproof sealing by using a locking buckle to press the sealing ring against the cable sheath. However, this method results in a small contact area and limited pressure, failing to ensure a tight connection and thus lacking good waterproof sealing. Furthermore, the pull-out resistance of the cable in the terminal blocks is primarily provided by friction through the locking buckle pressing the sealing ring against the cable. However, due to the small contact area, sufficient frictional resistance is not provided, leading to poor pull-out resistance of the cable during use. Therefore, to address these issues, a waterproof terminal block is proposed. Utility Model Content

[0005] To address the technical problems of poor waterproof sealing performance and lack of effective pull-out resistance in the comparative technologies, which easily lead to cable detachment during use, this utility model provides a waterproof terminal block.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A waterproof terminal block includes a waterproof housing with two symmetrical and vertically arranged sliding guide grooves inside, and symmetrically arranged trapezoidal insertion holes at both ends; a sliding connector slidably disposed in the sliding guide grooves; a cable with a plug-in formed at its end; and a trapezoidal plug fitted over the cable and pressed into the trapezoidal insertion hole by a clamping buckle fixedly connected to the waterproof housing; wherein the sliding connector includes a sliding contact block with a plug shaft fixedly connected thereto, and an adsorption plate fixedly connected to the top of the plug shaft by an insulating connecting rod; and an electrical lap joint is provided in the middle of the waterproof housing, which is electrically connected to the sliding contacts on both sides.

[0008] In one possible implementation, the upper surface of the waterproof housing is provided with symmetrically arranged magnet placement slots. When the magnet is placed in the magnet placement slot, the adsorption plate will be attracted by the magnetic field and the sliding contact will move upward. The insulating connecting rod is covered with a return spring.

[0009] In one possible implementation, the sliding guide groove is divided into an upper guide groove and a lower guide groove by a partition, wherein the sliding contact block is slidably disposed in the lower guide groove, the adsorption plate is slidably disposed in the upper guide groove, and the two ends of the reset spring abut against the partition and the sliding contact block respectively.

[0010] In one possible implementation, a circular hole is provided in the middle of the connector, and a connector shaft corresponding to the size of the circular hole is fixedly provided on the lower end face of the sliding contact.

[0011] In one possible implementation, the trapezoidal sealing plug includes a trapezoidal rubber cylinder corresponding to the size of the trapezoidal insertion hole, with a sealing skirt and a pressure ring fixedly provided at its outer end, and a plurality of arrayed water-blocking rings fixedly provided on its inner wall.

[0012] In one possible implementation, the clamping buckle includes a buckle body corresponding to the size of the pressure ring, the waterproof outer shell has a connecting hole at its end, and connecting bolts are threaded through both sides of the buckle body and connected to the connecting hole.

[0013] In one possible implementation, guide tubes are fixedly provided at both ends of the buckle body, and the connecting hole includes a guide hole that matches the size of the guide tube, with a threaded hole at the bottom of the guide hole for threaded connection with the connecting bolt.

[0014] In one possible implementation, the electrical connector includes a conductive block with flexible wires connected to both ends, the ends of which are electrically connected to a sliding contact block.

[0015] In summary, this utility model has the following beneficial technical effects:

[0016] Because the waterproof shell is integrally molded with only two ends having trapezoidal sockets for cable connection, the overall waterproof shell has excellent waterproof sealing performance. When connecting cables, a magnet is placed in the magnet placement slot, and the magnetic force attracts the movement of the adsorption plate, causing the sliding contact to move upward. At this time, the cable connector can be smoothly inserted into the end of the trapezoidal socket. Then, the magnet is removed, and the sliding contact moves downward under the push of the return spring, tightly fitting with the connector to complete the electrical connection. The cables inserted on both sides can then be electrically connected through the electrical connector. Finally, the trapezoidal socket is sealed with the trapezoidal sealing plug. Under the pressure of the clamping buckle, the trapezoidal sealing plug will tightly fit with the trapezoidal socket and the cable over a large area, thus ensuring the waterproof sealing effect at the only opening.

[0017] Under the pressure of the clamping buckle, the trapezoidal sealing plug will tightly fit with the trapezoidal socket and the cable over a large area. Therefore, a large static friction force will be generated between the cable and the trapezoidal sealing plug, which significantly improves the pull-out performance of the cable and prevents it from coming out of the trapezoidal socket and causing connection failure. In addition, a circular hole is opened in the middle of the connector, and a plug shaft is fixedly provided on the lower end face of the sliding contact. The plug and the sliding contact can be locked together by plugging the circular hole and the plug shaft, which further improves the pull-out resistance of the cable. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the sliding connector structure of this utility model;

[0022] Figure 4 This is a schematic diagram of a partial inner structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the trapezoidal sealing plug structure of this utility model;

[0024] Figure 6This is a partial structural schematic diagram of the present invention.

[0025] In the diagram: 1. Waterproof outer shell; 11. Sliding guide groove; 111. Upper guide groove; 112. Lower guide groove; 12. Trapezoidal insertion hole; 13. Magnet placement groove; 14. Connecting hole; 141. Guide hole; 142. Threaded hole; 2. Sliding connector; 21. Sliding contact block; 22. Insert shaft; 23. Insulating connecting rod; 24. Adsorption plate; 25. Return spring; 3. Cable; 31. Plug; 4. Trapezoidal sealing plug; 41. Trapezoidal rubber cylinder; 42. Sealing skirt; 43. Pressure ring; 44. Water-blocking ring; 5. Electrical connector; 51. Conductive block; 52. Flexible wire; 6. Clamping buckle; 61. Buckle body; 62. Guide cylinder; 63. Connecting bolt. Detailed Implementation

[0026] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0027] like Figure 1 - Figure 3 As shown, this embodiment provides a waterproof terminal block, including a waterproof housing 1, which has two symmetrical and vertically arranged sliding guide grooves 11 inside, and symmetrically arranged frustum-shaped sockets 12 at both ends; a sliding connector 2, which is slidably disposed in the sliding guide grooves 11; a cable 3, the end of which is wrapped to form a plug 31; and a frustum-shaped sealing plug 4, which is sleeved on the cable 3 and pressed into the frustum-shaped socket 12 by a clamping buckle 6 fixedly connected to the waterproof housing 1.

[0028] In the above scheme, since the waterproof shell 1 is integrally molded and only has trapezoidal sockets 12 for connecting cables 3 at both ends, the waterproof shell 1 has good overall waterproof sealing performance. The sliding connector 2 can slide in the sliding guide groove 11 to complete the contact and separation with the plug 31, which facilitates the installation and removal of cables 3. Then, the trapezoidal plug 4 seals the trapezoidal socket 12. Under the pressure of the clamping buckle 6, the trapezoidal plug 4 will be tightly combined with the trapezoidal socket 12 and the cable 3 over a large area, thus ensuring the waterproof sealing effect at the only opening. Since the trapezoidal plug 4 will be tightly combined with the trapezoidal socket 12 and the cable 3 over a large area under the pressure of the clamping buckle 6, a large static friction force will be generated between the cable 3 and the trapezoidal plug 4, thus significantly improving the pull-out performance of the cable 3 and preventing it from coming out of the trapezoidal socket 12 and causing connection failure.

[0029] Among them, such as Figure 3As shown, the sliding connector 2 includes a sliding contact 21, on which a plug shaft 22 is fixedly connected. The top of the plug shaft 22 is fixedly connected to an adsorption plate 24 via an insulating connecting rod 23. An electrical lap joint 5 is provided in the middle of the waterproof housing 1, which is electrically connected to the sliding contact 21 on both sides. When the sliding contact 21 slides down and laps with the plug 31, the plug 31 of the cables 3 on both sides can be connected through the electrical lap joint 5, thereby completing the electrical connection of the cables 3 on both sides. When the sliding contact 21 slides up, it separates from the plug 31, at which time the cable 3 can be smoothly pulled out from the truncated socket 12.

[0030] To ensure that the sliding contact 21 can fit tightly against the connector 31, and to enable the sliding contact 21 to automatically reset without external force, such as Figure 3 As shown, the upper surface of the waterproof housing 1 is provided with symmetrically arranged magnet placement slots 13. When a magnet is placed in the magnet placement slot 13, the adsorption plate 24 will be attracted by the magnetic field, causing the sliding contact 21 to move upward. The insulating connecting rod 23 is covered with a return spring 25. At the same time, as a cooperation, the sliding guide groove 11 is divided into an upper guide groove 111 and a lower guide groove 112 by a partition. The sliding contact 21 is slidably disposed in the lower guide groove 112, and the adsorption plate 24 is slidably disposed in the upper guide groove 111. The two ends of the return spring 25 abut against the partition and the sliding contact 21 respectively. When a magnet is placed in the magnet placement slot 13, the adsorption plate 24 will be attracted by the magnetic force, causing the sliding contact 21 to move upward. At this time, the plug 31 of the cable 3 can be smoothly inserted into the end of the trapezoidal socket 12. Then, the magnet is removed, and the sliding contact 21 will move downward under the pushing force of the return spring 25 and fit tightly with the plug 31 to complete the electrical connection.

[0031] In addition, such as Figure 2 - Figure 3 As shown, a circular hole is provided in the middle of the connector 31, and a plug shaft 22 corresponding to the size of the circular hole is fixedly provided on the lower end face of the sliding contact 21. The plug 31 and the sliding contact 21 can be snapped together by plugging the circular hole and the plug shaft 22, thereby further improving the pull-out resistance of the cable 3.

[0032] The trapezoidal sealing plug 4 includes a trapezoidal rubber cylinder 41 corresponding to the size of the trapezoidal insertion hole 12. Its outer end is fixedly provided with a sealing skirt 42 and a pressure ring 43, and its inner wall is fixedly provided with several arrayed water-blocking rings 44, such as... Figure 5 As shown, in the above structural scheme, the closed skirt 42 can fit tightly against the outer wall of the waterproof shell 1, playing a certain waterproof role. In addition, the water-blocking ring 44 can fit tightly against the surface of the cable 3 under pressure to form a series of water-blocking structures, which can significantly improve the waterproof sealing of the cable 3 during installation.

[0033] The clamping buckle 6 includes a buckle body 61 corresponding to the size of the pressure ring 43. A connecting hole 14 is provided at one end of the waterproof outer shell 1. Connecting bolts 63 are threaded through both sides of the buckle body 61 and connected to the connecting hole 14. Figure 4 , Figure 6 As shown, the connecting bolt 63 can apply a compressive force to the buckle body 61, making it fit tightly against the pressure ring 43, thereby applying a compressive force to the trapezoidal sealing plug 4 to ensure that it can tightly seal the trapezoidal insertion hole 12; in addition, as Figure 4 , Figure 6 As shown, guide tubes 62 are fixedly provided at both ends of the buckle body 61. The connecting hole 14 includes a guide hole 141 that matches the size of the guide tube 62. The bottom of the guide hole 141 is provided with a threaded hole 142 that is threaded to the connecting bolt 63. Based on the above structural scheme, the installation of the buckle 6 can be guided and positioned by inserting the guide tube 62 into the guide hole 141, which facilitates the installation and fixing of the buckle 6.

[0034] like Figure 3 As shown, the electrical connector 5 includes a conductive block 51, both ends of which are connected to flexible wires 52. The ends of the flexible wires 52 are electrically connected to the sliding contact 21. The connection between the flexible wires 52 and the sliding contact 21 can minimize the impact of the electrical connector 5 on the sliding of the sliding contact 21.

[0035] The working principle and usage process of this utility model:

[0036] When installing cable 3, a magnet is placed in the magnet placement slot 13. Under the action of magnetic force, the adsorption plate 24 moves and the sliding contact 21 moves upward. At this time, the connector 31 of cable 3 can be smoothly inserted into the end of the trapezoidal socket 12. Then, the magnet is removed, and the sliding contact 21 will move downward under the pushing force of the return spring 25 and fit tightly with the connector 31 to complete the electrical connection.

[0037] Since the waterproof housing 1 is integrally molded and only has a platform-shaped socket 12 for connecting the cable 3 at both ends, the waterproof housing 1 has good waterproof sealing performance as a whole. After the cable 3 is installed, the platform-shaped socket 12 is sealed by the platform-shaped sealing plug 4. Under the pressure of the clamping buckle 6, the platform-shaped sealing plug 4 will be tightly combined with the platform-shaped socket 12 and the cable 3 over a large area, thereby ensuring the waterproof sealing effect at the only opening.

[0038] Under the pressure of the clamping buckle 6, the trapezoidal sealing plug 4 will be tightly bonded to the trapezoidal socket 12 and the cable 3 over a large area. Therefore, a large static friction force will be generated between the cable 3 and the trapezoidal sealing plug 4, which will significantly improve the pull-out performance of the cable 3 and prevent it from coming out of the trapezoidal socket 12 and causing connection failure. In addition, a circular hole is provided in the middle of the plug 31, and a plug shaft 22 is fixedly provided on the lower end face of the sliding contact 21. The plug 31 and the sliding contact 21 can be snapped together by plugging the circular hole and the plug shaft 22, thereby further improving the pull-out resistance of the cable 3.

[0039] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A waterproof terminal block, characterized in that, include: The waterproof outer shell (1) has two symmetrical and vertically arranged sliding guide grooves (11) inside, and symmetrically arranged frustum-shaped insertion holes (12) at both ends. The sliding connector (2) is slidably disposed in the sliding guide groove (11); The cable (3) has a connector (31) wrapped around its end; A platform-shaped sealing plug (4) is fitted over the cable (3) and pressed into the platform-shaped socket (12) by a clamping buckle (6) that is fixedly connected to the waterproof housing (1); The sliding connector (2) includes a sliding contact block (21) on which a plug shaft (22) is fixedly connected. The top of the plug shaft (22) is fixedly connected to an adsorption plate (24) via an insulating connecting rod (23). The waterproof shell (1) is provided with an electrical connector (5) in the middle, which is electrically connected to the sliding contact blocks (21) on both sides.

2. The waterproof terminal block according to claim 1, characterized in that: The waterproof outer shell (1) has symmetrically arranged magnet placement slots (13) on its upper surface. When the magnet is placed in the magnet placement slot (13), the adsorption plate (24) will be attracted by the magnetic field and the sliding contact (21) will move upward. The insulating connecting rod (23) is covered with a return spring (25).

3. A waterproof terminal block according to claim 2, characterized in that: The sliding guide groove (11) is divided into an upper guide groove (111) and a lower guide groove (112) by a partition. The sliding contact block (21) is slidably disposed in the lower guide groove (112), and the adsorption plate (24) is slidably disposed in the upper guide groove (111). The two ends of the reset spring (25) abut against the partition and the sliding contact block (21) respectively.

4. A waterproof terminal block according to claim 1, characterized in that: The connector (31) has a circular hole in the middle, and the sliding contact (21) has a connector shaft (22) with a size corresponding to the circular hole fixed on its lower end face.

5. A waterproof terminal block according to claim 1, characterized in that: The trapezoidal sealing plug (4) includes a trapezoidal rubber tube (41) corresponding to the size of the trapezoidal insertion hole (12), with a sealing skirt (42) and a pressure ring (43) fixedly provided at its outer end, and a number of arrayed water-blocking rings (44) fixedly provided on its inner wall.

6. A waterproof terminal block according to claim 1, characterized in that: The clamping buckle (6) includes a buckle body (61) corresponding to the size of the clamping ring (43). The waterproof outer shell (1) has a connecting hole (14) at its end. Connecting bolts (63) are threaded through both sides of the buckle body (61) and are threaded to the connecting hole (14).

7. A waterproof terminal block according to claim 6, characterized in that: The buckle body (61) has guide tubes (62) fixedly installed at both ends. The connecting hole (14) includes a guide hole (141) that matches the size of the guide tube (62). The bottom of the guide hole (141) is provided with a threaded hole (142) that is threaded to the connecting bolt (63).

8. A waterproof terminal block according to claim 1, characterized in that: The electrical connector (5) includes a conductive block (51), both ends of which are connected to flexible wires (52), and the ends of the flexible wires (52) are electrically connected to the sliding contact (21).

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