SMC cable explosion-proof box for cable joint

Abstract

An SMC cable explosion-proof box for a cable connector is characterized in that the SMC cable explosion-proof box comprises an explosion-proof box body, a limiting assembly and a fireproof assembly, the explosion-proof box body is composed of an upper shell and a lower shell, multiple sets of fixing holes are formed in the outer edges of the two sides of the upper shell and the outer edges of the two sides of the lower shell at intervals, and the upper shell and the lower shell are fixedly connected through fixing bolts; a glue injection opening is formed in the upper shell, a limiting assembly is installed at the position, located at the glue injection opening, of the inner side face of the upper shell, the anti-explosion box body packages middle connectors of the two cables inside, the two cables extend out from the two ends of the anti-explosion box body to the two sides, and fireproof assemblies are arranged at the positions, located at the two ends, inside the anti-explosion box body. The explosion-proof box body made of the high-strength SMC glass fiber composite material is higher in strength, the overall fireproof and waterproof performance is improved through the fireproof assembly and injection of the sealant, and in addition, the stability of cable joints is enhanced by additionally arranging the limiting assembly in the explosion-proof box body.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable connection joint place explosion -proof box technical field, especially, it relates to a kind of SMC cable explosion -proof box for cable joint. BACKGROUND

[0002] At present, for the place of large cable intermediate connection, in order to make the connection more firm and durable, reach longer service life, simultaneously make the connection use not to be prone to damp, fire, explosion and other dangerous situations to affect the safe use of cable related equipment operation, generally will adopt the corresponding safety protection device is set in intermediate connector.

[0003] The protective device used now is basically all the protective cover of two groups of explosion -proof shell supported by ordinary glass steel, set in cable joint position place carries out explosion -proof use, but not in protective cover is equipped with the assembly for limiting and fixing two cables, this makes the cable part from protective cover in use process still prone to be pulled, leads to two cable connection joint place to be pulled off and causes electric leakage accident to occur, in view of this, set a kind of SMC cable explosion -proof box for cable joint. SUMMARY

[0004] According to the above existing technical problems, the utility model provides a kind of SMC cable explosion -proof box for cable joint, explosion -proof box body made of high-strength SMC glass fiber composite material is stronger, and the overall fireproof and waterproof performance is improved by fireproof assembly and injection sealant, in addition, limit component is additionally provided in explosion -proof box body to enhance the stability of cable joint.

[0005] To achieve the above object, the technical scheme of the utility model is as follows:

[0006] A kind of SMC cable explosion -proof box for cable joint, it is characterized by including explosion -proof box body, limit component and fireproof assembly, the explosion -proof box body is composed of upper shell and lower shell, the two side outer edge of the upper shell and lower shell It is interval to be equipped with multiple fixed holes, the upper shell and lower shell are fixedly connected by fixed bolt, glue injection port is provided on the upper shell, limit component is mounted on the inner side of the upper shell at glue injection port, the explosion -proof box body is packed in the intermediate joint of two cables, two cables are stretched from the both ends of explosion -proof box body to both sides, fireproof assembly is provided at both ends of the explosion -proof box body,

[0007] The limiting assembly is composed of a butt joint part, a lead screw, a lower fixed block, an upper fixed block, connecting rods and clamping plates, both ends of the upper fixed block are fixedly installed on the inner wall of the upper shell through fixing frames, the lead screw is threadedly connected in the threaded hole arranged on the upper fixed block, the top end of the lead screw is provided with the butt joint part, the bottom end of the lead screw is installed on the lower fixed block through a bearing, two groups of connecting rods are connected to the upper fixed block, one end of the two groups of connecting rods is arranged in a cross-over and stacking mode and is installed on the upper fixed block through a connecting shaft at the cross-over point, the other end of the two groups of connecting rods is connected to one end of the clamping plate through a connecting shaft respectively, the two clamping plates are arranged in a cross-over mode and are connected to the lower fixed block through a connecting shaft at the cross-over point,

[0008] Specifically, the butt joint part is provided with a cross recess, which is matched with a cross screwdriver, and the cross screwdriver can be used to control the rotation of the lead screw through the butt joint with the butt joint part.

[0009] Specifically, one end of the clamping plate is arranged in an arc structure, and the clamping plate is matched with the cable.

[0010] The fireproof assembly is composed of fireproof mortar and a fire blocking bag, the fire blocking bag is arranged adjacent to the fireproof mortar, and the fireproof mortar is arranged at the port in the interior of the explosion-proof box body.

[0011] Further, a sealing strip is arranged at the connecting position of the upper shell and the lower shell, so that the sealing property of the explosion-proof box body is improved.

[0012] Further, the glue injection port arranged on the upper shell is used for injecting sealant into the interior of the explosion-proof box body, so that the waterproof property of the middle joint of the two cables is improved.

[0013] Further, the middle joint of the two cables is wrapped by using a self-adhesive fireproof arc-resistant adhesive tape, and a temperature sensor is arranged at the middle joint, and the temperature sensor is fixed on the main surface of the middle joint by an insulating adhesive tape, so that the temperature sensor is in close contact with the main surface of the middle joint.

[0014] Further, a glue injection cover is arranged at the glue injection port of the upper shell, and a through hole is arranged on one of the glue injection covers, and the through hole is used for leading the connecting line box of the temperature sensor to the outside.

[0015] Further, the upper shell and the lower shell are made of high-strength SMC glass fiber composite material, and compared with ordinary glass steel shells, the material is more compact and the strength is higher.

[0016] The utility model discloses the beneficial effect:

[0017] The explosion-proof box body is made of high-strength SMC glass fiber composite material, compared with common glass steel shell, the material is denser and stronger, fireproof components are arranged at the two end ports of the explosion-proof box body, the fireproof capability is improved through fire clay and fire retardant package, glue injection ports are arranged on the upper shell of the explosion-proof box body to inject sealant into the assembled explosion-proof box body, the waterproof and moisture-proof performance of the whole is further improved, and the sealant can effectively prevent the spread of flame and explosive gas;

[0018] The limiting assembly is additionally arranged, the middle structure of the two cables is packaged in the explosion-proof box body, then the screw rod is rotated through cross screwdriver operation, the lower fixed block in the limiting assembly moves downwards and drives the two clamping plates to move towards the middle, clamping and limiting of the outer wall of the cable is completed, the stability of the packaging of the cable joint is enhanced, and the problem of joint disconnection caused by pulling of the cable during use is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the SMC cable explosion-proof box for cable joints;

[0020] Figure 2 It is a side view schematic view of the whole structure of the SMC cable explosion-proof box for cable joints;

[0021] Figure 3 It is a partial structure schematic view of the upper shell of the SMC cable explosion-proof box for cable joints;

[0022] Figure 4 It is a partial structure schematic view of the upper shell of the SMC cable explosion-proof box for cable joints, viewed from below after the glue injection cover is opened;

[0023] Figure 5 It is a structure schematic view of the SMC cable explosion-proof box for cable joints after the cable joint is packaged;

[0024] As shown in the figure: 100. cable, 101. middle joint, 1. explosion-proof box body, 11. upper shell, 111. fixed hole, 112. glue injection port, 12. lower shell, 2. glue injection cover, 21. through hole, 31. upper fixed block, 32. fixed frame, 33. lower fixed block, 34. screw rod, 341. butt joint part, 35. connecting rod, 36. clamping plate, 37. connecting shaft, 41. fire retardant package, 42. fire clay, 5. sealing strip. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0026] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0028] Embodiment 1

[0029] As shown in the figure, the explosion-proof box body 1 is composed of an upper shell 11 and a lower shell 12, and the upper shell 11 and the lower shell 12 are made of high-strength SMC glass fiber composite material, which is more compact and stronger than ordinary glass steel shell. A plurality of fixing holes 111 are arranged on the outer edges of the two sides of the upper shell 11 and the lower shell 12, and the upper shell 11 and the lower shell 12 are fixedly connected by fixing bolts, and a glue injection port 112 is arranged on the upper shell 11, which is used for injecting sealing glue into the explosion-proof box body 1, for enhancing the waterproofness of the middle joint 101 of the two cables 100,

[0030] In addition, the glue injection port 112 of the upper shell 11 is provided with a glue injection cover 2, one of which is provided with a through hole 21 for wire passing. After the middle joint 101 of the cable 100 is wrapped with self-adhesive fireproof arc-resistant tape, a temperature sensor is arranged at the middle joint 101 and fixed on the main surface of the middle joint 101 by an insulating tape, so that the temperature sensor is in close contact with the main surface of the middle joint 101. The temperature sensor is arranged to monitor the temperature of the middle joint 101. Therefore, a through hole 21 is arranged on one of the glue injection covers 2 of the glue injection port 112, which is used to connect the connecting line box of the temperature sensor to the outside world and connect the terminal equipment outside to transmit information. The temperature sensor uses existing equipment, so its specific structure is not described and shown in this application.

[0031] As Figure 2 , 3 and 4, the inner side of the upper shell 11 is provided with a limiting assembly at the glue injection port 112. The two ends of the upper fixed block 31 in the limiting assembly are fixedly installed on the inner wall of the upper shell 11 by the fixed frame 32. The threaded hole arranged on the upper fixed block 31 is threadedly connected with the lead screw 34. The top end of the lead screw 34 is provided with a butt joint part 341. The butt joint part 341 is provided with a cross recess which is matched with a cross screwdriver. The cross screwdriver can be connected with the butt joint part to control the rotation of the lead screw 34. The bottom end of the lead screw 34 is installed on the lower fixed block 33 through a bearing,

[0032] The two ends of the two groups of connecting rods 35 are crossly arranged and stacked and are installed on the upper fixed block 31 through connecting shafts at the cross points. The other ends of the two groups of connecting rods 35 are respectively connected with one end of the clamping plate 36 through connecting shafts. The two clamping plates 36 are crossly arranged and are connected at the cross points through a connecting shaft. One end of the clamping plate 36 is arranged in an arc shape and is matched with the cable 100,

[0033] As Figure 5 The two middle joints 101 of the two cables 100 are wrapped inside the explosion-proof box body 1. The connection part of the upper shell 11 and the lower shell 12 of the explosion-proof box body 1 is provided with a sealing strip 5 for improving the sealing performance of the explosion-proof box body 1. The two cables 100 are stretched out from the two ends of the explosion-proof box body 1. Fireproof assemblies are arranged inside the explosion-proof box body 1 at the two end heads. The fireproof assemblies are composed of fireproof mortar 42 and fire barrier 41. The fire barrier 41 is arranged adjacent to the fireproof mortar 42. The fireproof mortar 42 is arranged at the port inside the explosion-proof box body 1.

[0034] Embodiment 2

[0035] In use of the utility model, first, the temperature sensor is fixed on the main body surface of the intermediate joint 101 by using the insulating tape on the intermediate joint 101 of the two cables 100, then the intermediate joint 101 is coated by using the self-adhesive fireproof arc-resistant tape, then it is placed into the lower shell 12, then the upper shell 11 is placed on the lower shell 12 and fixed by using the fixing bolts, the connecting wire of the temperature sensor is pulled out from the glue injection port 112 and out of the through hole 21 of the glue injection cover 2,

[0036] By docking the docking part 341 in the limiting assembly with the cross screwdriver, the rotation of the screw rod 34 in each limiting assembly is controlled to move downward, so that when the lower fixed block 33 moves downward, the connecting rod 35 and the clamping plate 36 installed by the cross connection shaft between the upper fixed block 31 and the lower fixed block 33 move to the middle direction, the outer wall of the cable 100 is clamped and limited, the stability of the cable joint packaging is enhanced, and the problem of joint disconnection caused by pulling the cable during use is reduced.

[0037] After the above operation is completed, the fire barrier and the fire clay are sequentially inserted from the gap between the cable 100 and the port of the explosion-proof box body 1, and the fire resistance is improved by the fire clay and the fire barrier.

[0038] Then, the sealing glue is injected into the box body from the glue injection port 112 of the upper shell 11, further enhancing the waterproofness and moisture resistance of the whole, the sealing glue can also effectively prevent the spread of flame and explosive gas, and finally the glue injection cover 2 is covered, that is, the use packaging of the intermediate joint 101 is completed.

[0039] The basic principles and main features of the utility model and the advantages of the utility model are shown and described. The components mentioned in the utility model are common technologies in the prior art, which should be understood by those skilled in the art. The utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles 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 claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An SMC cable explosion-proof box for cable joints, characterized by The utility model provides an anti -explosion box body, limiting component and fire -proof subassembly, the anti -explosion box body is composed of upper shell and lower shell, the both sides outer edge of upper shell and lower shell are evenly spaced and are provided with a plurality of fixed holes, upper shell and lower shell are fixedly connected through fixed bolt, be provided with the glue injection port on the upper shell, the inner side of upper shell is equipped with limiting component at the glue injection port, the anti -explosion box body packs up the middle joint of two cables inside, and two cables stretch out from the both ends of anti -explosion box body to both sides, and the fire -proof subassembly is arranged at the both ends of the inside of anti -explosion box body.

2. The SMC cable explosion-proof box for cable joints according to claim 1, characterized in that The limiting component is composed of butt joint, screw rod, lower fixed block, upper fixed block, connecting rod and clamping plate, the both ends of upper fixed block are fixedly installed on the inner wall of upper shell through fixing frame, the threaded hole on upper fixed block is connected with screw rod in thread, the top end of screw rod is equipped with butt joint, the bottom end of screw rod is installed on lower fixed block through bearing, two groups of connecting rods are connected on upper fixed block, one end of two groups of connecting rods is cross -stacked and is installed on upper fixed block through connecting shaft at cross point, the other end of two groups of connecting rods is connected with one end of clamping plate through connecting shaft respectively, two clamping plates are cross -stacked and are connected on lower fixed block through connecting shaft at cross point.

3. The SMC cable explosion-proof box for cable joints according to claim 2, characterized in that The butt joint is provided with a cross recess, and the cross recess is matched with a cross screwdriver.

4. The SMC cable explosion-proof box for cable joints according to claim 1, characterized in that The fire -proof subassembly is composed of fire -resistant clay and fire -resistant package, the fire -resistant package is arranged adjacent to the fire -resistant clay, and the fire -resistant clay is arranged at the port inside the anti -explosion box body.

5. The SMC cable explosion-proof box for cable joints according to claim 1, characterized in that The connecting place of the upper shell and the lower shell is provided with a sealing strip.

6. The SMC cable explosion-proof box for cable joints according to claim 1, characterized in that The glue injection port provided on the upper shell is used for injecting sealant into the anti -explosion box body.

7. The SMC cable explosion-proof box for cable joints according to claim 1, characterized in that The upper shell and the lower shell are made of high -strength SMC glass fiber composite material.

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