SMC cable joint explosion-proof box

Abstract

The utility model relates to the technical field of explosion-proof boxes, in particular to an SMC (Sheet Molding Compound) cable joint explosion-proof box, which comprises an explosion-proof box body, a communicating pipe and an air inlet pipe, fasteners are welded on the outer walls of the two sides of the explosion-proof box body, the communicating pipe is inserted into one side of the outer wall of the upper end of the explosion-proof box body, and the air inlet pipe is inserted into the communicating pipe. An air inlet pipe is installed on the outer wall of the side, away from the communicating pipe, of the anti-explosion box body in an inserted mode, a supporting frame is welded to one side of the lower end of the inner wall of the air inlet pipe, a contact sensor is arranged in the supporting frame, and a linkage plate is arranged at the upper end in the air inlet pipe. Therefore, a worker is helped to detect the sealing state of the explosion-proof box body in time, and the worker is helped to maintain the explosion-proof box body in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of explosion -proof box, specifically relates to a kind of SMC cable joint explosion -proof box. BACKGROUND

[0002] Cable joint explosion -proof box is a kind of device specially used for protecting cable joint, with fireproof, waterproof and explosion -proof function, SMC explosion -proof box uses high-strength SMC glass fiber composite material, once forming in mould at high temperature and high pressure, material is dense, without weak point, compared with ordinary glass steel shell strength is higher, it has good flame retardancy, pressure resistance and impact strength, can withstand from inside or outside superstrong impact.

[0003] Disclosed as CN209526464U discloses a kind of SMC composite material cable joint explosion -proof box, including explosion -proof box body, the explosion -proof box body includes upper and lower symmetrical distribution shell upper and shell lower, the structure and specification of shell upper and shell lower are same, the outer wall on the both sides of shell upper and shell lower is fixedly provided with side rib plate, and side rib plate is fixedly provided with linearly distributed connecting lug on the outer wall, the outer wall of the end of connecting lug away from side rib plate is fixedly provided with connector, and the outer wall on the top of connector is opened with screw hole, the outer wall on the both ends of shell upper and shell lower is fixedly installed with first half ring flange and second half ring flange.The utility model can be immersed for a long time, does not cause appearance, explosion -proof and waterproof performance change due to damp, can extinguish flame instantaneously when accident occurs, has good sealing effect, avoids the situation of water seepage, easy to install, so that worker can be installed operation without special training.

[0004] Prior art CN209526464U has many benefits in use, but still has the following problems, the detection of the sealing property in explosion -proof box is not perfect, since explosion -proof box is usually buried for use underground, but due to the immersion corrosion of sewage and sludge, the phenomenon of liquid seepage occurs in explosion -proof box, since it is in underground, so that the staff cannot maintain the equipment in time, affect the normal use of explosion -proof box. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model provides a kind of SMC cable joint explosion -proof box.

[0006] The utility model discloses a technical scheme that solves its technical problem is a kind of SMC cable joint explosion-proof box, including explosion-proof box body, communication pipe and air inlet pipe, the explosion-proof box body both sides outer wall are all welded with fastener, the explosion-proof box body upper end outer wall one side plug-in installation has communication pipe, the explosion-proof box body side outer wall plug-in installation has air inlet pipe, away from communication pipe, the air inlet pipe inner wall lower end one side is welded with support frame, the support frame is internally provided with contact sensor, the air inlet pipe inside upper end is provided with linkage plate.

[0007] By adopting the above technical scheme, the explosion-proof box body can be assembled by the fastener, ensuring the position stability of the cable joint inside the explosion-proof box body, the external air pump can transport inert gas inside the explosion-proof box body through the air inlet pipe, realizing the protection of the explosion-proof box body inside, ensuring that the explosion-proof box body provides effective explosion protection at the cable joint, the support frame keeps the use position of the contact sensor stable, and the linkage plate can move according to the air pressure data inside the explosion-proof box body, the external controller can judge the sealing performance of the explosion-proof box body by the contact signal generated by the contact between the linkage plate and the contact sensor, helping the staff to maintain the explosion-proof box body in time.

[0008] Specifically, the fastener is internally provided with equidistantly parallel distributed bolts, and the two fasteners are connected by the bolts.

[0009] By adopting the above technical scheme, the bolts can firmly connect the two fasteners together, enhancing the stability and safety of the explosion-proof box as a whole, and this design enables the explosion-proof box body to maintain the integrity of the structure when bearing external pressure or impact, thereby effectively preventing explosion accidents.

[0010] Specifically, the explosion-proof box body is welded with reinforcing ribs on the outer walls of the upper and lower sides, and the reinforcing ribs are connected with the fasteners.

[0011] By adopting the above technical scheme, the welding of the reinforcing ribs enhances the strength of the outer walls of the upper and lower sides of the explosion-proof box body, making it more solid and durable, and the connection of the reinforcing ribs and the fasteners further improves the overall stability of the explosion-proof box body, enabling it to better bear external pressure and impact.

[0012] Specifically, the explosion-proof box body is provided with a sealing gasket therebetween, and the explosion-proof box body is provided with a connector on the outer wall of each end.

[0013] By adopting the above technical scheme, the sealing gasket ensures the tight connection between the explosion-proof box bodies, prevents the leakage of inert gas inside the explosion-proof box body, and avoids the intrusion of external sewage or sludge into the explosion-proof box body, and at the same time, the arrangement of the connector enables the explosion-proof box body to be conveniently connected with other equipment or components, improving the versatility and flexibility of the product.

[0014] Specifically, the inner wall of the air inlet pipe is provided with a one-way valve, and the outer wall of the upper end of the air inlet pipe is provided with a plug.

[0015] By adopting the above technical scheme, the external air pump can input inert gas into the explosion-proof box body through the air inlet pipe, and the air pressure of the inert gas can be adjusted.

[0016] Specifically, the linkage plate is located at the upper end of the support frame, and a sealing ring is fixed to the outer wall of the linkage plate.

[0017] By adopting the above technical scheme, the linkage plate is located at the upper end of the support frame, so that it can effectively act when needed, and the linkage plate can be pushed and moved according to the air pressure of the inert gas in the explosion-proof box body, ensuring controlled movement of the linkage plate, and the sealing ring ensures the sealing between the linkage plate and the communication pipe, ensuring the sealing of the upper and lower ends of the linkage plate.

[0018] Specifically, the outer wall of the upper end of the linkage plate is provided with a spring, and the linkage plate is elastically connected between the spring and the inner wall of the communication pipe.

[0019] By adopting the above technical scheme, the linkage plate can be retracted into the communication pipe according to the air pressure of the inert gas in the explosion-proof box body, so that the linkage plate is separated from the contact sensor, and the spring force can push the linkage plate to move after the inert gas in the explosion-proof box body leaks, until the linkage plate contacts the contact sensor, so that the external controller still detects the data of the contact sensor, and can judge the sealing of the explosion-proof box body.

[0020] The beneficial effects of the utility model are as follows:

[0021] (1) The SMC cable joint explosion-proof box enhances the stability and safety of the explosion-proof box body, and this design enables the explosion-proof box body to maintain the integrity of the structure when bearing external pressure or impact, thereby effectively preventing explosion accidents, and the inert gas realizes protection of the explosion-proof box body, ensuring that the explosion-proof box body provides effective explosion protection at the cable joint.

[0022] The utility model discloses a kind of SMC cable joint explosion-proof box, external controller still contacts the detection data of sensor, can judge the sealing of explosion-proof box body inside, help staff timely to detect the sealing state of explosion-proof box body, and help staff can timely maintain explosion-proof box body. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model is further described below in connection with drawings and examples.

[0024] Figure 1 It is the explosion-proof box body structure exploded schematic view of the utility model;

[0025] Figure 2 It is the appearance schematic view of the explosion-proof box body structure of the utility model;

[0026] Figure 3 It is the air inlet pipe structure exploded schematic view of the utility model;

[0027] Figure 4 It is the cross section schematic view of the communication pipe structure of the utility model.

[0028] In the drawing: 1, explosion-proof box body;11, fastener;12, connector;13, reinforcing rib;14, bolt;2, communication pipe;21, support frame;22, contact sensor;23, linkage plate;24, sealing ring;25, spring;3, air inlet pipe;31, check valve;32, plug. DETAILED DESCRIPTION

[0029] In order to make the technical means, creation features, achieve purposes and effects of the utility model easy to understand, the utility model is further described below in connection with specific implementation.

[0030] In order to save manpower, improve efficiency, as an embodiment of the utility model, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The utility model discloses a kind of SMC cable joint explosion-proof box, including explosion-proof box body 1, communication pipe 2 and air inlet pipe 3, fastener 11 is welded in the both sides outer wall of explosion-proof box body 1, connector installation is carried out in the outer wall one side of the upper end of explosion-proof box body 1, communication pipe 2, explosion-proof box body 1 is inserted and is installed in the outer wall of the side away from communication pipe 2 of the upper end of explosion-proof box body 1, air inlet pipe 3, support frame 21 is welded in the inner wall lower end one side of air inlet pipe 3, contact sensor 22 is arranged in the inside of support frame 21, linkage plate 23 is arranged in the inside upper end of air inlet pipe 3.

[0031] In use, the explosion-proof box body 1 can be assembled through the fastener 11, ensuring the stability of the cable joint inside the explosion-proof box body 1, and the external air pump can transport inert gas inside the explosion-proof box body 1 through the air inlet pipe 3, realizing the protection of the explosion-proof box body 1, ensuring that the explosion-proof box body 1 provides effective explosion protection at the cable joint, and the support frame 21 keeps the use position of the contact sensor 22 stable, and the linkage plate 23 can move according to the air pressure data inside the explosion-proof box body 1. The contact signal generated by the contact between the linkage plate 23 and the contact sensor 22 enables the external controller to judge the sealing performance of the explosion-proof box body 1, helping the staff to maintain the explosion-proof box body 1 in time.

[0032] In order to fix the connection, for example, as shown in Figure 1 The fastener 11 is provided with equidistantly distributed bolts 14 inside, and the two fasteners 11 are connected through the bolts 14.

[0033] In use, the bolts 14 can firmly connect the two fasteners 11 together, enhancing the stability and safety of the explosion-proof box body 1 as a whole. This design enables the explosion-proof box body 1 to maintain the integrity of the structure when subjected to external pressure or impact, thereby effectively preventing explosion accidents.

[0034] In order to improve the structural strength, for example, as shown in Figure 2 The upper and lower sides of the explosion-proof box body 1 are welded with reinforcing ribs 13, and the outer wall of the reinforcing rib 13 is connected with the fastener 11.

[0035] In use, the welding of the reinforcing rib 13 enhances the strength of the upper and lower sides of the explosion-proof box body 1, making it more solid and durable. At the same time, the connection of the reinforcing rib 13 and the fastener 11 further improves the overall stability of the explosion-proof box, so that it can better withstand external pressure and impact.

[0036] In order to improve the sealing performance, for example, as shown in Figure 1 The explosion-proof box body 1 is provided with a sealing gasket, and the outer wall of both ends of the explosion-proof box body 1 is provided with a connector 12.

[0037] In use, the sealing gasket ensures the tight connection between the explosion-proof box body 1, preventing the leakage of inert gas inside the explosion-proof box body 1, and avoiding the intrusion of external sewage or sludge into the explosion-proof box body 1. At the same time, the arrangement of the connector 12 enables the explosion-proof box body 1 to be conveniently connected with other equipment or components, improving the versatility and flexibility of the product.

[0038] In order to transport gas, for example, as shown in Figure 3 The inner wall of the air inlet pipe 3 is provided with a one-way valve 31 on one side, and the outer wall of the upper end of the air inlet pipe 3 is provided with a plug 32 on one side.

[0039] In use, the external air pump can input inert gas into the explosion-proof box body 1 through the air inlet pipe 3, and can adjust the air pressure of the inert gas. The one-way valve 31 allows the gas to flow in one direction, preventing dangerous situations that may occur due to reverse flow. The plug 32 provides a simple and effective way to close the air inlet pipe 3, ensuring that the explosion-proof box body 1 remains closed when no air is needed, preventing external air or impurities from entering.

[0040] For sealing, as shown in Figure 4 The linkage plate 23 is located at the upper end of the support frame 21, and the sealing ring 24 is fixed to the outer wall of the linkage plate 23, which is in contact with the inner wall of the communication pipe 2.

[0041] In use, the linkage plate 23 is located at the upper end of the support frame 21, so that it can effectively act when needed, and the linkage plate 23 can be pushed and moved according to the air pressure of the inert gas in the explosion-proof box body 1, ensuring controlled movement of the linkage plate 23, and the sealing ring 24 ensures the sealing between the linkage plate 23 and the communication pipe 2, ensuring the sealing of the upper and lower ends of the linkage plate 23.

[0042] For linkage movement, as shown in Figure 4 The outer wall of the upper end of the linkage plate 23 is provided with a spring 25, and the linkage plate 23 is elastically connected between the spring 25 and the upper end of the inner wall of the communication pipe 2.

[0043] In use, the linkage plate 23 can be retracted into the communication pipe 2 according to the air pressure of the inert gas in the explosion-proof box body 1, so that the linkage plate 23 is separated from the contact sensor 22, and the spring 25 can push the linkage plate 23 to move after the inert gas in the explosion-proof box body 1 leaks, until the linkage plate 23 contacts the contact sensor 22, so that the external controller still detects the data of the contact sensor 22, and can judge the sealing of the explosion-proof box body 1.

[0044] In use, the two explosion-proof box bodies 1 are assembled by fasteners 11 and bolts 14, ensuring the stability of the position of the explosion-proof box body 1 on the outside of the cable joint, and ensuring the sealing between the explosion-proof box bodies 1 by cooperating with the sealing gasket, ensuring the sealing of the explosion-proof box body 1;

[0045] Start the air pump, input the inert gas into the explosion-proof box body 1 through the air inlet pipe 3, according to the need, the output pressure of the air pump can be adjusted to control the air pressure of the inert gas in the explosion-proof box body 1, when no inert gas is needed, the upper end of the air inlet pipe 3 is closed by the plug 32;

[0046] When the gas pressure of the inert gas in the explosion-proof box body 1 changes, the linkage plate 23 will move according to the gas pressure data. When the linkage plate 23 contacts the contact sensor 22, a contact signal is generated. After the external controller receives the detection data of the contact sensor 22, the sealing performance of the explosion-proof box body 1 is judged. According to the prompt of the controller, the staff can check and maintain the explosion-proof box body 1.

[0047] It should be noted that the utility model is a kind of SMC cable joint explosion-proof box, components in the utility model are components known to those skilled in the art, and its structure and principle are known to those skilled in the art by technical manual or by conventional experimental method.

[0048] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above implementation and description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. An SMC cable joint explosion-proof box, characterized in that, The utility model provides an anti -explosion box body (1), the communication pipe (2) and the air inlet pipe (3), both sides outer wall of anti -explosion box body (1) all weld fastener (11), the communication pipe (2) is inserted and is installed to the outer wall one side of anti -explosion box body (1) upper end, the air inlet pipe (3) is inserted and is installed to the outer wall of anti -explosion box body (1) side away from the communication pipe (2), the support frame (21) is welded to the inner wall lower end one side of air inlet pipe (3), the contact sensor (22) is arranged in the support frame (21), the linkage board (23) is arranged in the inside upper end of air inlet pipe (3).

2. The SMC cable splice explosion-proof enclosure of claim 1, wherein, The fastener (11) is internally provided with equidistant parallel distributed bolts (14), and the two fasteners (11) are connected through the bolts (14).

3. The SMC cable splice explosion-proof enclosure of claim 1, wherein, The anti -explosion box body (1) upper and lower both sides outer wall all welds the reinforcing rib (13), and the reinforcing rib (13) outer wall is connected with fastener (11).

4. The SMC cable splice explosion-proof enclosure of claim 1, wherein, The anti -explosion box body (1) between being provided with sealing pad, the anti -explosion box body (1) both ends outer wall all are provided with connector (12).

5. The SMC cable splice explosion-proof enclosure of claim 1, wherein, The air inlet pipe (3) inner wall one side is provided with check valve (31), and the air inlet pipe (3) upper end outer wall one side is provided with plug (32).

6. The SMC cable splice explosion-proof enclosure of claim 1, wherein, The linkage board (23) is located on the upper end of the support frame (21), the sealing ring (24) is fixed on the outer wall of the linkage board (23), and the sealing ring (24) is in contact with the inner wall of the communication pipe (2).

7. The SMC cable splice explosion-proof enclosure of claim 1, wherein, The linkage board (23) is elastically connected between the upper end of the inner wall of the communication pipe (2) through the spring (25) on the outer wall one side of the upper end of the linkage board (23).

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