A type of explosion-proof terminal box

Abstract

This utility model belongs to the field of junction box technology, specifically relating to an explosion-proof terminal junction box, including: a box body and a box cover; the box body and the box cover are fixedly connected; the box body is provided with a terminal fixing assembly and a gland assembly; the terminal fixing assembly includes: a connecting post, an inner fixing nut and an outer fixing nut; the gland assembly includes: a base, a sealing ring, a crimping ring, a connector nut and a fastening nut; this utility model fixes and protects wires and cables through the gland assembly, ensuring the stability and safety of cable connections, and prevents axial displacement or radial rotation of the cable through fastening and sealing, thereby ensuring the stability of the cable connection.

Description

Technical Field

[0001] This utility model belongs to the field of junction box technology, specifically relating to an explosion-proof junction box for terminals. Background Technology

[0002] Explosion-proof terminal boxes are designed to ensure the safe connection of electrical wires in flammable and explosive environments, preventing explosions caused by electrical sparks and protecting circuit safety. Specifically, explosion-proof terminal boxes have explosion-proof properties: their ingenious design effectively prevents the generation of sparks at the connection point, ensuring safe use in flammable and explosive environments. Explosion-proof terminal boxes are used to connect pipelines to equipment or devices, playing a particularly important role in the transition between exposed and concealed pipelines and the conversion between rigid and flexible pipelines.

[0003] However, the terminal cables in the existing explosion-proof junction boxes cannot be fixed, which can lead to instability in the cable connection and, in severe cases, compromise the safety of the explosion-proof junction box. Utility Model Content

[0004] Purpose of the utility model: To provide an explosion-proof terminal box to solve the problems mentioned above.

[0005] Technical solution: A terminal explosion-proof junction box, comprising: a box body and a box cover;

[0006] The box body is fixedly connected to the box lid;

[0007] The housing contains a terminal fixing assembly and a gland assembly;

[0008] The terminal fixing assembly includes: a connecting post, an inner fixing nut, and an outer fixing nut;

[0009] The gland assembly includes: a base, a sealing ring, a crimping ring, a connector nut, and a fastening nut.

[0010] In a further embodiment, the connecting post is installed on one side of the housing via an insulating sleeve, the inner fixing nut is screwed onto one side of the connecting post and fixes the head of the terminal, and the outer fixing nut is screwed onto the other side of the connecting post.

[0011] In a further embodiment, the sealing ring is sleeved on the outside of the cable, the base is installed on the outside of the sealing ring, the connector nut is connected to one end of the base, the fastening nut is connected to the other end of the base, and the crimping ring is installed between the base and the sealing ring.

[0012] In a further embodiment, the sealing ring is provided with limiting blocks both outside and inside. The outer limiting block limits the movement distance of the connector nut and the fastening nut, and the inner limiting block limits the movement distance of the base.

[0013] In a further embodiment, an elastic block is provided between the box body and the box lid.

[0014] In a further embodiment, the box body is provided with a slide rail.

[0015] In a further embodiment, the bottom of the box is provided with a hanging ear.

[0016] Beneficial effects: This utility model uses a gland assembly to fix and protect wires and cables, ensuring the stability and safety of the cable connection. By fastening and sealing, it prevents axial displacement or radial rotation of the cable, thereby ensuring the stability of the cable connection. Attached Figure Description

[0017] Figure 1 This is an isometric drawing of this utility model.

[0018] Figure 2 This is a cross-sectional view of the present invention. Figure 1 .

[0019] Figure 3 This is a top view of the present invention.

[0020] Figure 4 This is a cross-sectional view of the present invention. Figure 2 .

[0021] Figure 5 This is a cross-sectional view of the present invention. Figure 3 .

[0022] Figure 6 This is a schematic diagram of the gland assembly of this utility model.

[0023] Figure 7 This is a cross-sectional view of the gland assembly of this utility model.

[0024] Reference numerals: 1. Box body; 2. Box cover; 3. Connecting post; 4. Inner fixing nut; 5. Outer fixing nut; 6. Base; 7. Sealing ring; 8. Pressing ring; 9. Connector nut; 10. Fastening nut; 11. Limiting block; 12. Elastic block; 13. Slide rail; 14. Hanging lug; 15. Gland assembly. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0028] An explosion-proof junction box includes: a box body 1 and a box cover 2.

[0029] In one embodiment, such as Figure 1 As shown, the box body 1 and the box cover 2 are fixedly connected;

[0030] The housing 1 is equipped with a terminal fixing assembly and a gland assembly 15.

[0031] The terminal fixing assembly includes: a connecting post 3, an inner fixing nut 4, and an outer fixing nut 5;

[0032] The gland assembly 15 includes: a base 6, a sealing ring 7, a crimping ring 8, a connector nut 9, and a fastening nut 10.

[0033] In one embodiment, such as Figures 1 to 3 As shown, the connecting post 3 is installed on one side of the housing 1 through an insulating sleeve, the inner fixing nut 4 is screwed to one side of the connecting post 3 and fixes the head of the terminal, and the outer fixing nut 5 is screwed to the other side of the connecting post 3.

[0034] In one embodiment, such as Figures 4 to 5As shown, the sealing ring 7 is sleeved on the outside of the cable, the base 6 is installed on the outside of the sealing ring 7, the connector nut 9 is connected to one end of the base 6, the fastening nut 10 is connected to the other end of the base 6, and the crimping ring 8 is installed between the base 6 and the sealing ring 7.

[0035] In one embodiment, such as Figures 4 to 5 As shown, the sealing ring 7 is provided with limiting blocks 11 on both the outside and inside. The outer limiting block 11 restricts the movement distance of the connector nut 9 and the fastening nut 10, and the inner limiting block 11 restricts the movement distance of the base 6.

[0036] In one embodiment, such as Figures 1 to 3 As shown, an elastic block 12 is provided between the box body 1 and the box cover 2.

[0037] In one embodiment, such as Figures 1 to 3 As shown, the box body 1 is provided with a slide rail 13.

[0038] In one embodiment, such as Figures 1 to 3 As shown, the bottom of the box body 1 is provided with a hanging ear 14.

[0039] Working principle: This utility model uses a gland assembly to fix and protect wires and cables. First, the sealing ring 7 is fixed to the cable to ensure the cable's sealing. Second, the sealing ring 7 and the base 6 cooperate and are fixed by the connector nut 9 and the fastening nut 10, thereby ensuring the stability and safety of the cable connection. By fastening and sealing, axial displacement or radial rotation of the cable is prevented, thus ensuring the stability of the cable connection.

[0040] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A terminal explosion-proof junction box, characterized in that, include: Box body and lid; The box body is fixedly connected to the box lid; The housing contains a terminal fixing assembly and a gland assembly; The terminal fixing assembly includes: a connecting post, an inner fixing nut, and an outer fixing nut; The gland assembly includes: a base, a sealing ring, a crimping ring, a connector nut, and a fastening nut.

2. The terminal explosion-proof junction box according to claim 1, wherein The connecting post is installed on one side of the housing via an insulating sleeve. The inner fixing nut is screwed onto one side of the connecting post and fixes the head of the terminal. The outer fixing nut is screwed onto the other side of the connecting post.

3. The terminal explosion-proof junction box according to claim 1, wherein The sealing ring is fitted onto the outside of the cable, the base is installed on the outside of the sealing ring, the connector nut is connected to one end of the base, the fastening nut is connected to the other end of the base, and the crimping ring is installed between the base and the sealing ring.

4. The terminal explosion-proof junction box of claim 1, wherein The sealing ring is provided with limiting blocks on both the outside and inside. The outer limiting block limits the movement distance of the connector nut and the fastening nut, while the inner limiting block limits the movement distance of the base.

5. The terminal explosion-proof junction box of claim 1, wherein An elastic block is provided between the box body and the box lid.

6. The terminal explosion-proof junction box of claim 1, wherein The box is equipped with a slide rail.

7. The terminal explosion-proof junction box of claim 1, wherein The bottom of the box is provided with a hanging ear.

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