Explosion-proof straight-through junction box for super-long electric tracing band

Abstract

The utility model discloses a super-long electric tracing band explosion-proof straight-through junction box, which relates to the technical field of electric tracing band junction boxes and comprises a junction box body and a box cover, bellmouths are arranged on the periphery of a wiring port at two ends of the junction box body, the wiring port is inserted into one end of a plug, and the other end of the plug is inserted into the box cover. The other end of the plug and the sealing end cover are installed in an inserted mode, and a buffer pad clamped between the outer end face of the wiring port and the plug is arranged in the middle of the plug. A protruding lip is arranged on the edge of the top of the junction box body, and sealing gaskets distributed on the periphery of an inner cavity of the junction box body are arranged in the lip. The junction box is provided with the junction box body, the box cover, the plug, the sealing end cover and the sealing gasket, the buffering gasket is additionally arranged at the connecting position of the sealing end cover, and the sealing gasket is designed at the top of the junction box body, so that the junction box has good anti-cracking and sealing effects, the buffering gasket and the sealing gasket are both designed in the shell and are not easy to age and damage, the overall structure is simple, and the cost is low. And the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology for electric heating cables, specifically an explosion-proof straight-through junction box for ultra-long electric heating cables. Background Technology

[0002] A straight-through junction box is mainly used to connect two electric heating cables, thus extending the heating cable line. For example, in some long pipe insulation applications, when one electric heating cable is not long enough, a straight-through junction box can be used to connect another electric heating cable to continue providing heat tracing.

[0003] Existing junction boxes generally include a cover, a body, a plug, and an end cap. During installation, the cover is screwed to the top of the body to seal it, and the end cap is screwed to the end of the body at the cable inlet. This direct connection method lacks buffering, and under the pressure of the screws, the cover and end cap are easily squeezed out and cracked, causing the product to malfunction.

[0004] Furthermore, with this direct connection method, it is difficult to guarantee the sealing between the cover, end cover and the box body. For junction boxes used in special environments, such as humid or explosion-proof environments, it is even more necessary to meet the corresponding protection performance requirements. Therefore, we propose an explosion-proof straight-through junction box with an ultra-long electric heating tape. Utility Model Content

[0005] The purpose of this utility model is to provide an explosion-proof straight-through junction box for ultra-long electric heating cables, which solves the problems of existing junction box connection methods that easily cause cracks in the box cover and end cap and make it difficult to guarantee sealing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof straight-through junction box for ultra-long electric heating tape, comprising a junction box body and a cover. The junction box body has two connection ports for the electric heating tape to enter at both ends. The junction box body has sockets around the connection ports at both ends. One end of the connection port is inserted into the plug, and the other end of the plug is inserted into the sealing end cap. A buffer pad is provided in the middle of the plug and sandwiched between the outer end face of the connection port and the plug. The sealing end cap is locked to the end of the junction box body by a screw to press the buffer pad.

[0007] The junction box has a raised lip on the top edge, and a sealing gasket is provided inside the lip, which is distributed around the inner cavity of the junction box. The box cover is locked to the top of the junction box by two screws to press the sealing gasket.

[0008] Preferably, the end of the sealing end cap is inserted into the socket for installation.

[0009] Preferably, the socket and the junction box body are integrally formed.

[0010] Preferably, the lip and the terminal box body are integrally formed.

[0011] Preferably, the bottom of the cover is inserted into the lip for installation, and the cover is provided with a ring plate covering the top of the lip.

[0012] Preferably, the ring plate and the cover are integrally formed.

[0013] Preferably, the plug and the buffer pad are integrally formed.

[0014] The utility model has the following beneficial effects:

[0015] The utility model discloses a terminal box body, cover, plug, sealing end cover and sealing pad are set up, and the design of plug is further improved, and the buffer pad is added at the connecting position of sealing end cover, and the sealing end cover is installed and is connected and is buffered by the buffer pad and is not easy to extrude and break, and the buffer pad that is extruded by the sealing end cover also plays certain sealing effect, and the sealing pad is designed at the top of terminal box body, and the cover is installed and is connected and is buffered by the sealing pad and is not easy to extrude and break, and the sealing pad that is extruded by the cover plays good sealing effect, makes the terminal box have good anti -cracking and sealing effect, and the buffer pad and the sealing pad are all designed in the shell interior, and are not easy to age and damage, and the overall structure is simple, and safety improves. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is overall structure schematic diagram of the utility model;

[0017] Figure 2 It is structure schematic diagram of terminal box body position of the utility model;

[0018] Figure 3 It is expanded diagram of the utility model;

[0019] Figure 4 It is the local structure of terminal box body connecting position of the utility model and is the section view.

[0020] In the drawing: 1, terminal box body;11, terminal port;12, socket;13, lip;2, cover;21, ring plate;3, plug;31, buffer pad;4, sealing end cover;5, screw one;6, sealing pad;7, screw two. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] As Figures 1-4 shown, the utility model provides a technical scheme: a kind of super-long electric heat tracing tape explosion-proof straight-through junction box, including junction box body 1 and box cover 2, junction box body 1 both ends are equipped with two electric heat tracing tape entering junction 11, and the peripheral of junction 11 both ends of junction box body 1 is equipped with socket 12, and the one end of plug 3 is inserted and installed with junction 11, and the other end of plug 3 is inserted and installed with sealing end cover 4, and the middle of plug 3 is equipped with buffer pad 31 clamped between the outer end surface of junction 11 and plug 3, and sealing end cover 4 is locked in the end of junction box body 1 by screw one 5 and compresses buffer pad 31, and the end of sealing end cover 4 is inserted and installed in socket 12, ensure that buffer pad 31 is located in product internal installation and not easy to age, wherein plug 3 and buffer pad 31 are integrally formed structure, and socket 12 and lip 13 are integrally formed structure with junction box body 1;

[0023] The top edge of junction box body 1 is equipped with protruding lip 13, and lip 13 is equipped with sealing pad 6 distributed in the peripheral of the inner cavity of junction box body 1, and box cover 2 is locked in the top of junction box body 1 by screw two 7 and compresses sealing pad 6, and the bottom of box cover 2 is inserted and installed in lip 13, and the outer periphery of box cover 2 is equipped with ring plate 21 covering the top of lip 13, to ensure that sealing pad 6 is located in product internal installation and not easy to age, wherein ring plate 21 and box cover 2 are integrally formed structure.

[0024] It should be noted that, in this text, relational terms such as first and second and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed or inherent to such process, method, article, or apparatus.

[0025] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-explosion straight-through junction box for super-long electric heat tracing band, comprising a junction box body (1) and a box cover (2), characterized in that: The terminal box body (1) is provided with two electric heat tracing band entering terminal ports (11) at both ends, and is provided with sockets (12) at both ends outside the terminal ports (11); the terminal ports (11) are inserted and connected with one end of the plug (3); the other end of the plug (3) is inserted and connected with the sealing end cover (4); the middle of the plug (3) is provided with a buffer pad (31) clamped between the outer end face of the terminal port (11) and the plug (3); the sealing end cover (4) is locked on the end of the terminal box body (1) by a screw (5) to compress the buffer pad (31); The terminal box body (1) is provided with a raised lip (13) at the top edge, and the lip (13) is provided with a sealing pad (6) distributed around the inner cavity of the terminal box body (1); the box cover (2) is locked on the top of the terminal box body (1) by a screw (7) to compress the sealing pad (6).

2. The explosion-proof straight-through junction box for an ultra-long electric heat tracing band according to claim 1, characterized in that: The end of the sealing end cover (4) is inserted into the socket (12) for installation.

3. The explosion-proof straight-through junction box for an ultra-long electric heat tracing band according to claim 1, characterized in that: The socket (12) and the terminal box body (1) are integrally formed.

4. The explosion-proof straight-through junction box for an ultra-long electric heat tracing band according to claim 1, characterized in that: The lip (13) and the terminal box body (1) are integrally formed.

5. The explosion-proof straight-through junction box for an ultra-long electric heat tracing band according to claim 1, characterized in that: The bottom of the box cover (2) is inserted into the lip (13) for installation, and the outer periphery of the box cover (2) is provided with a ring plate (21) covering the top of the lip (13).

6. The explosion-proof straight-through junction box for an ultra-long electric heat tracing band according to claim 5, characterized in that: The ring plate (21) and the box cover (2) are integrally formed.

7. The explosion-proof straight-through junction box for an ultra-long electric heat tracing band according to claim 1, characterized in that: The plug (3) and the buffer pad (31) are integrally formed.

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