A high-strength stainless steel cable joint explosion-proof shell

Abstract

The utility model relates to the technical field of joint explosion -proof housing, and disclose a kind of high-strength stainless steel cable joint explosion -proof housing, first explosion -proof housing;Second explosion -proof housing, the second explosion -proof housing is set at first explosion -proof housing side, the inside between first explosion -proof housing and second explosion -proof housing is equipped with middle sleeve, the inside of middle sleeve is equipped with internal sleeve;Buffering assembly is set between the inside of middle sleeve and the outside of internal sleeve, and the pressure received by the outside of device is buffered;By setting the buffering assembly consisting of rubber ring, limit seat, arc spring piece, when device is impacted by external force, arc spring piece and rubber ring synergistic effect, external pressure can be effectively absorbed and buffered, reduce the influence of external force on internal cable joint, compared with prior art, greatly improve the protection effect to cable joint, reduce the risk that cable joint is damaged due to external force.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof housing technology for connectors, specifically a high-strength stainless steel cable connector explosion-proof housing. Background Technology

[0002] High-strength stainless steel cable joint explosion-proof shells are key components used to protect cable joints from explosions caused by dangerous environments such as flammable and explosive gases and dust, while also resisting external mechanical impacts. Their high-strength stainless steel material has excellent corrosion resistance and wear resistance, and can work stably for a long time under complex and harsh working conditions.

[0003] Application No. 202321528397.2 discloses an explosion-proof housing for a cable connector. A first mounting plate is connected to a second mounting plate by inserting a mounting block into a mounting groove. During insertion, a rod is inserted into the groove to lock the mounting block, enhancing connectivity. During disassembly, moving the movable plate simultaneously extends multiple second springs, disengaging the rod from the groove and separating the upper and lower housings. A first spring extends when the rod disengages, pushing the mounting block out of the mounting groove. A sealing block and sealing groove enhance the sealing performance. A pull ring facilitates the movement of the movable plate. A corrugated tube protects the second springs.

[0004] The aforementioned devices are not convenient for effectively protecting the internal cable joints during use. If the structural strength is insufficient, the explosion-proof shell may burst. Once burst, the cable joints will be exposed to a dangerous environment, causing electrical faults such as short circuits and leakage. It may even cause serious safety accidents such as fires and explosions, endangering the lives of personnel. Therefore, we have proposed a high-strength stainless steel explosion-proof shell for cable joints. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-strength stainless steel cable connector explosion-proof shell, which solves the aforementioned problems.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a high-strength stainless steel cable joint explosion-proof shell, comprising: First explosion-proof enclosure; The second explosion-proof housing is disposed on one side of the first explosion-proof housing. A central sleeve is provided between the first explosion-proof housing and the second explosion-proof housing, and an inner sleeve is provided inside the central sleeve. The buffer assembly is located between the inside of the middle sleeve and the outside of the inner sleeve to buffer the pressure applied to the device from the outside.

[0007] Preferably, the buffer assembly includes a rubber ring, a limiting seat, and an arc-shaped spring sheet; The limiting seat is fixedly connected to the outer wall of the inner sleeve. There are several inner sleeves, which are distributed circumferentially. The sidewall of the arc-shaped spring is fixedly connected to the inner wall of the central sleeve. Several arc-shaped springs are provided, and the arc-shaped springs are distributed in a circular pattern. The rubber ring is fixedly sleeved on the end of the limiting seat away from the inner sleeve. The outer wall of the rubber ring is fixedly connected to the inner wall of the arc-shaped spring piece. The arc-shaped spring piece is provided in three sets.

[0008] Preferably, both the first explosion-proof housing and the second explosion-proof housing have arc-shaped protrusions fixedly connected to their middle outer walls.

[0009] Preferably, the arc-shaped protrusion has an internal cavity.

[0010] Preferably, a plurality of fixing discs are provided between the interior of the first explosion-proof housing and the interior of the second explosion-proof housing. There are two sets of fixing discs. One set of fixing discs is fixedly connected between the outer wall of the middle sleeve and the inner wall of the first explosion-proof housing, and the other set of fixing discs is fixedly connected to the inner wall of the second explosion-proof housing.

[0011] Preferably, threaded holes are provided at the four corners of the outer walls of both the first and second explosion-proof housings.

[0012] Compared with the prior art, this utility model provides a high-strength stainless steel cable joint explosion-proof shell, which has the following beneficial effects: 1. High-efficiency buffer protection: By setting up a buffer assembly consisting of a rubber ring, a limit seat, and an arc-shaped spring, when the device is subjected to external impact, the arc-shaped spring and the rubber ring work together to effectively absorb and buffer external pressure, reducing the impact of external force on the internal cable joint. Compared with existing technologies, this greatly improves the protection effect on the cable joint and reduces the risk of cable joint damage caused by external force.

[0013] 2. Enhanced structural strength: The arc-shaped protrusions on the outer walls of the first and second explosion-proof housings and their internal cavities can effectively disperse external impact forces and avoid stress concentration. At the same time, the threaded hole connection method and the setting of the fixing plate further enhance the stability and strength of the overall structure of the explosion-proof housing, reduce the possibility of explosion-proof housing cracking, and ensure the safe operation of the device in hazardous environments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0015] In the figure: 1. First explosion-proof housing; 2. Second explosion-proof housing; 3. Arc-shaped protrusion; 4. Threaded hole; 5. Inner cavity; 6. Middle sleeve; 7. Inner sleeve; 8. Rubber ring; 9. Limiting seat; 10. Fixing plate; 11. Arc-shaped spring. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3 A high-strength stainless steel cable connector explosion-proof shell, comprising: First explosion-proof enclosure 1; The second explosion-proof housing 2 is disposed on one side of the first explosion-proof housing 1. A central sleeve 6 is provided inside the first explosion-proof housing 1 and the second explosion-proof housing 2. An inner sleeve 7 is provided inside the central sleeve 6. A buffer assembly, disposed between the interior of the central sleeve 6 and the exterior of the inner sleeve 7, buffers external pressure on the device. The first explosion-proof housing 1 and the second explosion-proof housing 2 are mated together to form the main body of the explosion-proof housing. The central sleeve 6 is located inside the two housings, and the inner sleeve 7 is located inside the central sleeve 6. The cable passes through the inner sleeve 7, and the connector is protected inside it. When the device is subjected to external force, the force first acts on the first and second explosion-proof housings, and then is transmitted through them to the central sleeve 6, thereby affecting the buffer assembly between the central sleeve 6 and the inner sleeve 7.

[0018] The buffer assembly includes a rubber ring 8, a limiting seat 9, and an arc-shaped spring piece 11; The limiting seat 9 is fixedly connected to the outer wall of the inner sleeve 7. There are several inner sleeves 7, which are distributed in a circumferential manner. The side wall of the arc-shaped spring piece 11 is fixedly connected to the inner wall of the middle sleeve 6. Several arc-shaped spring pieces 11 are provided and are distributed in a circular pattern. The rubber ring 8 is fixedly sleeved on the end of the limiting seat 9 away from the inner sleeve 7. The outer wall of the rubber ring 8 is fixedly connected to the inner wall of the arc-shaped spring piece 11. The arc-shaped spring piece 11 is provided with three sets. When the device is subjected to force, the central sleeve 6 compresses the arc-shaped spring piece 11 to deform it, while the arc-shaped spring piece 11 compresses the rubber ring 8. The two work together to buffer the external pressure. By setting up a buffer assembly composed of the rubber ring 8, the limiting seat 9, and the arc-shaped spring piece 11, when the device is subjected to external impact, the arc-shaped spring piece 11 and the rubber ring 8 work together to effectively absorb and buffer the external pressure, reducing the impact of external force on the internal cable joint. Compared with the existing technology, this greatly improves the protection effect on the cable joint and reduces the risk of cable joint damage caused by external force.

[0019] Both the first explosion-proof housing 1 and the second explosion-proof housing 2 have arc-shaped protrusions 3 fixedly connected to their middle outer walls. When the device is subjected to external force, the arc-shaped protrusions 3 are the first to come into contact with the external force. The arc-shaped structure of the protrusions 3 can disperse the external force to both sides of the first explosion-proof housing 1, change the direction of the external force, and reduce the local stress.

[0020] The arc-shaped protrusion 3 has an internal cavity 5 inside; The inner cavity 5 inside the arc-shaped protrusion 3 plays an auxiliary role in dispersing external forces. Under the action of external forces, the inner cavity 5 undergoes a certain degree of deformation, absorbing some energy and further reducing the intensity of external forces transmitted to the first and second explosion-proof shells.

[0021] A plurality of fixing discs 10 are provided between the interior of the first explosion-proof housing 1 and the second explosion-proof housing 2. There are two sets of fixing discs 10. One set of fixing discs 10 is fixedly connected between the outer wall of the middle sleeve 6 and the inner wall of the first explosion-proof housing 1, and the other set of fixing discs 10 is fixedly connected to the inner wall of the second explosion-proof housing 2. When the first and second explosion-proof housings are subjected to external forces, the fixing plate 10 transmits the external forces to the central sleeve 6, ensuring a stable and orderly force transmission path. The arc-shaped protrusion 3 on the outer wall of the first explosion-proof housing 1 and the second explosion-proof housing 2 and their internal cavity 5 can effectively disperse external impact forces and avoid stress concentration. At the same time, the connection method of the threaded hole 4 and the setting of the fixing plate 10 further enhance the stability and strength of the overall structure of the explosion-proof housing, reduce the possibility of explosion-proof housing cracking, and ensure the safe operation of the device in hazardous environments.

[0022] Both the first explosion-proof housing 1 and the second explosion-proof housing 2 have threaded holes 4 at the four corners of their outer walls; By using bolts or other connectors passing through threaded holes 4, the two shells can be firmly connected together to form a complete explosion-proof shell structure.

[0023] Structural Description: First explosion-proof housing 1: docks with the second explosion-proof housing 2 to form the main frame of the explosion-proof housing; made of high-strength stainless steel, it has the characteristics of corrosion resistance, wear resistance and high strength, can resist mechanical impact, block the intrusion of hazardous substances, and provide basic protection for cable joints. The second explosion-proof housing 2 corresponds to and is made of the same material as the first explosion-proof housing 1. It connects to the first explosion-proof housing 1 through the threaded hole 4, enhancing structural stability and sealing, and providing comprehensive protection for the cable joint.

[0024] Arc-shaped protrusion 3: fixed to the outer wall of the middle part of the first and second explosion-proof shells; when subjected to external impact, it is the first to make contact, and the arc-shaped surface disperses the external force, changes the direction of the force, reduces the local force, and improves the impact resistance of the explosion-proof shell. Threaded holes 4: Distributed at the four corners of the outer walls of the two explosion-proof housings, used for connection and fixation; bolts pass through threaded holes 4 to firmly connect the two housings, which facilitates assembly and disassembly, ensures tight connection, and enhances the overall structural strength. Inner cavity 5: Located inside the arc-shaped protrusion 3, it helps to disperse external forces; when subjected to external forces, it deforms to absorb energy, reducing the intensity of external forces transmitted to the explosion-proof shell, and working together with the arc-shaped protrusion 3 to improve the ability to withstand external forces. The middle sleeve 6 is located between the two explosion-proof housings and serves as a connection and transition; a buffer assembly is provided between it and the inner sleeve 7 to bear the external force transmitted by the explosion-proof housing and conduct it to the buffer assembly to protect the cable joint. Inner sleeve 7: Located inside the middle sleeve 6, used to accommodate the cable joint; multiple circumferentially distributed, with a limiting seat 9 on the outer wall, which cooperates with the buffer assembly to support the cable joint and resist external impact. Rubber ring 8: It is fitted onto one end of the limiting seat 9 and connected to the arc-shaped spring piece 11; it utilizes elasticity to deform together with the arc-shaped spring piece 11 when the device is subjected to force, thus buffering the pressure and flexibly protecting the cable joint. Limiting seat 9: Fixed to the outer wall of the inner sleeve 7, positioning and supporting the rubber ring 8; multiple limiting seats 9 work together to ensure that the rubber ring 8 can stably play a buffering role and evenly cope with the impact force. Fixed plate 10: Divided into two groups, it connects the middle sleeve 6 and the explosion-proof shell respectively. Under the action of external force, it stably transmits the force of the explosion-proof shell to the middle sleeve 6, ensuring the force transmission path and enhancing the structural stability. Arc-shaped spring 11: It is connected to the inner wall of the central sleeve 6, with multiple circumferential distributions and three sets. When subjected to force, it is squeezed and deformed, working together with the rubber ring 8 to buffer the pressure and protect the cable joint in all directions.

[0025] The first explosion-proof housing 1 and the second explosion-proof housing 2 are connected and fixed through the threaded holes 4 at the four corners of the outer wall, completing the assembly of the main body of the explosion-proof housing. The cable passes through the inner sleeve 7, so that the cable connector is placed inside the inner sleeve 7, realizing the positioning and installation of the cable connector. When the device is subjected to external force, the external force first contacts the arc-shaped protrusion 3 on the outer wall of the middle part of the first explosion-proof housing 1 and the second explosion-proof housing 2. The arc-shaped protrusion 3 disperses the external force to both sides of the first explosion-proof housing 1. At the same time, the inner cavity 5 inside the arc-shaped protrusion 3 further assists in dispersing the external force and reducing its intensity. Local stress strength; subsequently, the external force on the first explosion-proof housing 1 and the second explosion-proof housing 2 is transmitted to the middle sleeve 6 through the fixed plate 10. After being subjected to force, the middle sleeve 6 compresses the arc-shaped spring piece 11 between its interior and the exterior of the inner sleeve 7, causing the arc-shaped spring piece 11 to undergo elastic deformation. At the same time, the side wall of the arc-shaped spring piece 11 compresses the rubber ring 8 on the limiting seat 9. By utilizing the elasticity of the rubber ring 8 and the deformation of the arc-shaped spring piece 11, the external pressure is buffered, thereby effectively protecting the cable joint inside the inner sleeve 7.

[0026] 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 high-strength stainless steel cable connector explosion-proof shell, characterized in that, include: First explosion-proof enclosure (1); The second explosion-proof housing (2) is disposed on one side of the first explosion-proof housing (1). A middle sleeve (6) is provided inside between the first explosion-proof housing (1) and the second explosion-proof housing (2). An inner sleeve (7) is provided inside the middle sleeve (6). The buffer assembly is located between the inside of the middle sleeve (6) and the outside of the inner sleeve (7) to buffer the pressure on the outside of the device.

2. The explosion-proof housing for a high-strength stainless steel cable connector according to claim 1, characterized in that: The buffer assembly includes a rubber ring (8), a limiting seat (9), and an arc-shaped spring (11). The limiting seat (9) is fixedly connected to the outer wall of the inner sleeve (7). There are several inner sleeves (7) arranged in a circular pattern. The side wall of the arc-shaped spring piece (11) is fixedly connected to the inner wall of the middle sleeve (6). There are several arc-shaped spring pieces (11), and the arc-shaped spring pieces (11) are distributed in a circular pattern. The rubber ring (8) is fixedly sleeved on the end of the limiting seat (9) away from the inner sleeve (7). The outer wall of the rubber ring (8) is fixedly connected to the inner wall of the arc-shaped spring (11). The arc-shaped spring (11) is provided in three sets.

3. The explosion-proof housing for a high-strength stainless steel cable connector according to claim 1, characterized in that: Both the first explosion-proof housing (1) and the second explosion-proof housing (2) have arc-shaped protrusions (3) fixedly connected to their middle outer walls.

4. The explosion-proof housing for a high-strength stainless steel cable connector according to claim 3, characterized in that; The arc-shaped protrusion (3) has an inner cavity (5).

5. The explosion-proof housing for a high-strength stainless steel cable joint according to claim 1, characterized in that: A plurality of fixing discs (10) are provided between the interior of the first explosion-proof housing (1) and the second explosion-proof housing (2). There are two sets of fixing discs (10). One set of fixing discs (10) is fixedly connected between the outer wall of the middle sleeve (6) and the inner wall of the first explosion-proof housing (1), and the other set of fixing discs (10) is fixedly connected to the inner wall of the second explosion-proof housing (2).

6. The explosion-proof housing for a high-strength stainless steel cable connector according to claim 1, characterized in that: Both the first explosion-proof housing (1) and the second explosion-proof housing (2) have threaded holes (4) at the four corners of their outer walls.

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