Wire holder of cable junction box for coal mine
By using sealing components of rubber sleeves and fixing rings in the cable junction box for coal mines, the problem of dust entering affects service life is solved. Through the design of clamps and arc blocks, the cable is fixed and improved the wiring seat Stability and operational convenience.
Patent Information
- Application Number
- CN202420959085.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-07
AI Technical Summary
When plugging cable junction boxes for existing coal mines, due to the large gap between the hole and the cable, dust enters the junction box, affecting the service life of the junction base.
A sealing assembly is designed, including a rubber sleeve and a fixing ring, and the cable passes through the rubber sleeve and then enters the junction box. The rubber sleeve provides a double sealing effect to reduce dust entry and ensures the cable through the fit of the clamp and the curved block. Fixed and easy to operate.
It effectively reduces dust entering the junction box, extends the service life of the junction base, and ensures stable connection between the cable and the junction base, making it easy to operate.
Smart Images
Figure CN222215106U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cable junction boxes, in particular to a junction seat of a cable junction box for coal mines. Background Art
[0002] The cable junction box used underground in coal mines is a flameproof device with a shell designed and manufactured in accordance with national standards and a built-in terminal block. The core component is the terminal block. Under the conditions of the same voltage and current levels, the shape and size of the terminal block play a crucial role in designing the external dimensions and weight of the junction box.
[0003] Existing junction boxes usually have holes for inserting cables into the junction boxes and connecting them to the junction sockets. This method will cause a large gap between the cable and the hole. A large amount of dust will be generated during coal mine production. The large gap will allow dust to enter the interior of the junction box and then adhere to the junction socket. When there is a lot of dust attached, it will affect the use of the junction socket and reduce its service life. Therefore, we propose a junction socket for a cable junction box for coal mines. Utility Model Content
[0004] The purpose of the utility model is to provide a terminal block for a cable junction box for coal mines. By setting a sealing component, specifically by putting a docking ring on the cable, the cable will first pass through the rubber sleeve one, which can wrap the cable to play the first dust-proof role and reduce the entry of dust. Then the cable will pass through the fixing ring and through the rubber sleeve two to enter the interior of the junction box. The rubber sleeve two can play a sealing role again to reduce the entry of dust into the interior of the junction box, and can reduce the adhesion of dust to the terminal block, thereby increasing the service life of the terminal block. This solves the problem that after the cable is inserted into the hole of the existing junction box, there is a large gap between the cable and the hole, which will cause dust to enter the interior of the junction box and thus adhere to the terminal block to reduce the service life.
[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0006] The utility model is a terminal block of a cable junction box for coal mines, comprising a junction box, a cover plate in contact with the top of the junction box, holes on the left and right sides of the junction box, a sealing component arranged inside the hole, a terminal block fixedly connected to the bottom of the inner wall of the junction box, the sealing component comprising a fixing ring, a docking ring arranged on the left side of the fixing ring;
[0007] A threaded ring is sleeved on the outer side of the docking ring, a rubber sleeve 1 is fixedly connected to the left side of the docking ring, and a rubber sleeve 2 is fixedly connected to the right side of the fixing ring.
[0008] Furthermore, the interiors of the fixing ring and the docking ring are both provided with cavities, the outer surface of the docking ring is fixedly connected to a limit ring, the interior cavity of the docking ring is provided with two clamping plates, and the left side of the clamping plates is rotatably connected to a rotating shaft.
[0009] Furthermore, a spring sheet is provided at the position corresponding to the top of the inner wall of the docking ring and the splint, and the top and bottom of the spring sheet are rotatably connected to support blocks. The top of the support block located above is fixedly connected to the top of the inner wall of the docking ring, and the bottom of the support block located below is fixedly connected to the side of the splint close to the spring sheet, and the side of the splint away from the spring sheet is fixedly connected to an arc block.
[0010] Furthermore, the front and back sides of the cover are fixedly connected with fixing plates, the bottom of the cover is fixedly connected with a positioning frame, the positioning frame is plugged into the top of the junction box, and a slot is provided on one side of the fixing plate close to the junction box.
[0011] Furthermore, a slide groove is provided on the front and back of the junction box, a holder is slidably connected to the inner wall of the slide groove, a slide rod is fixedly connected to the side of the holder away from the fixed plate, and a spring is sleeved on the outer side of the slide rod.
[0012] Furthermore, the bottom of the cover plate contacts the top of the junction box, the card slot is matched with the card seat, and the card slot and the card seat have a corresponding side that is arranged in an arc-shaped triangle.
[0013] Furthermore, the left side of the fixing ring is plugged into the right side of the docking ring, an annular groove is provided on the inner wall of the threaded ring, the annular groove is rotatably connected to the limiting ring, and the inner wall of the threaded ring is threadedly connected to the outer surface of the fixing ring.
[0014] Furthermore, the front and back sides of the rotating shaft are respectively fixedly connected to the front and back sides of the inner wall of the fixing ring, the outer surface of the fixing ring is fixedly connected to the inner wall of the hole, and the front and back sides of the spring are respectively fixedly connected to the inner wall of the slide groove and the outer surface of the slide rod.
[0015] The utility model has the following beneficial effects:
[0016] 1. The utility model sets a sealing component, specifically, a docking ring is put on the cable, and the cable will first pass through the rubber sleeve 1, which can wrap the cable to play the first dust-proof role and reduce the entry of dust. Then the cable passes through the fixing ring and passes through the rubber sleeve 2 to enter the inside of the junction box. The rubber sleeve 2 can play a sealing role again to reduce the entry of dust into the inside of the junction box, which can reduce the adhesion of dust to the terminal block and increase the service life of the terminal block.
[0017] 2. The utility model sets a clamping plate. Specifically, after the cable is plugged into the docking ring, it will pass through the arc block, and the arc block will be pushed to drive the clamping plate to move together. The spring piece will be squeezed by the support block, and the arc block and the cable will be tightly attached through the reverse force, so that the cable will be clamped and fixed. The cable will not move when it is connected to the terminal block, which is convenient for the staff to operate.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the internal structure of the utility model junction box;
[0022] Figure 3 This is a front cross-sectional structural diagram of the docking ring of the utility model;
[0023] Figure 4 For this utility model Figure 3 A is a schematic diagram of the enlarged structure of the middle part;
[0024] Figure 5 The figure is a schematic diagram of the internal cross-sectional structure of the junction box of the utility model.
[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0026] 1. Junction box; 11. Cover plate; 111. Fixing plate; 112. Positioning frame; 12. Sealing assembly; 121. Fixing ring; 122. Docking ring; 221. Limiting ring; 222. Clamp; 223. Rotating shaft; 224. Shrapnel; 225. Support block; 226. Arc block; 123. Threaded ring; 124. Rubber sleeve 1; 125. Rubber sleeve 2; 13. Junction seat; 14. Clamp seat; 141. Sliding rod; 142. Spring. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] See also Figure 1-5As shown, the utility model is a terminal block for a cable junction box for coal mines, including a junction box 1, a cover plate 11 in contact with the top of the junction box 1, holes are opened on the left and right sides of the junction box 1, a sealing component 12 is arranged inside the hole, a terminal block 13 is fixedly connected to the bottom of the inner wall of the junction box 1, the sealing component 12 includes a fixing ring 121, a docking ring 122 is arranged on the left side of the fixing ring 121, a threaded ring 123 is sleeved on the outer side of the docking ring 122, a rubber sleeve 124 is fixedly connected to the left side of the docking ring 122, and a rubber sleeve 2 125 is fixedly connected to the right side of the fixing ring 121. The utility model sets the sealing component 12, specifically, the docking ring 122 is sleeved on the cable, and the cable will first pass through the rubber sleeve 124, and the rubber sleeve 124 can wrap the cable to The first dust-proof effect reduces the entry of dust, and then the cable is passed through the fixing ring 121 and the rubber sleeve 125 to enter the inside of the junction box 1. The rubber sleeve 125 can play a sealing role again to reduce the entry of dust into the inside of the junction box 1, and can reduce the adhesion of dust to the terminal block 13, thereby increasing the service life of the terminal block 13. The fixing ring 121 and the docking ring 122 are both provided with cavities. The outer surface of the docking ring 122 is fixedly connected to the limiting ring 221. The inner cavity of the docking ring 122 is provided with two clamping plates 222. The left side of the clamping plate 222 is rotatably connected to a rotating shaft 223. The front and back sides of the rotating shaft 223 are respectively fixedly connected to the front and back sides of the inner wall of the fixing ring 121. The outer surface of the fixing ring 121 is fixedly connected to the inner wall of the hole. The rotating shaft 223 is used to align the clamping plates The spring piece 224 is provided at the position corresponding to the top of the inner wall of the splint 222 and the docking ring 122, and the top and bottom of the spring piece 224 are rotatably connected with the support block 225. The top of the support block 225 located at the top is fixedly connected to the top of the inner wall of the docking ring 122, and the bottom of the support block 225 located at the bottom is fixedly connected to the side of the splint 222 close to the spring piece 224, and the side of the splint 222 away from the spring piece 224 is fixedly connected with the arc block 226. The utility model arranges the splint 222, specifically, after the cable is plugged into the docking ring 122, it will pass through the arc block 226, and push the arc block 226, which will drive the splint 222 to move together, and through the action of the support block 225 The spring piece 224 will be squeezed by the user, and then the arc block 226 will be tightly attached to the cable through the reverse force, so that the cable is clamped and fixed, so that the cable will not move when the cable is connected to the terminal seat 13, which is convenient for the staff to operate. The front and back of the cover 11 are fixedly connected with a fixing plate 111, and the bottom of the cover 11 is fixedly connected with a positioning frame 112, and the positioning frame 112 is plugged with the top of the junction box 1. A card slot is provided on the side of the fixing plate 111 close to the junction box 1. The positioning frame 112 is used to position the cover 11 when it is installed, and reduce the shaking of the cover 11. The outer surface of the fixing plate 111 is fixedly connected with a protrusion, which can increase the friction force. The front and back of the junction box 1 are provided with a slide groove, and the inner wall of the slide groove is slidably connected with the card seat 14.The side of the card seat 14 away from the fixed plate 111 is fixedly connected with a slide bar 141, and a spring 142 is sleeved on the outside of the slide bar 141. The front and back sides of the spring 142 are respectively fixedly connected to the inner wall of the slide groove and the outer surface of the slide bar 141. The slide bar 141 is used to limit the card seat 14. By setting the spring 142, it is convenient to bounce the card seat 14 into the card slot, so as to quickly fix the fixed plate 111. The bottom of the cover plate 11 contacts the top of the junction box 1, and the card slot is adapted to the card seat 14. The side corresponding to the card slot and the card seat 14 is an arc-shaped triangle. Since the card slots of the card seat 14 are opposite to each other, The corresponding side is set in an arc triangle, so when the cover plate 11 needs to be disassembled, it can be disassembled by holding the fixing plate 111 and pulling it hard. The left side of the fixing ring 121 is plugged into the right side of the docking ring 122. The inner wall of the threaded ring 123 is provided with an annular groove, which is rotatably connected with the limit ring 221. The inner wall of the threaded ring 123 is threadedly connected with the outer surface of the fixing ring 121. Since the threaded ring 123 rotates on the limit ring 221 through the annular groove, it will drive the docking ring 122 to move to the right, so that the docking ring 122 is tightly attached to the fixing ring 121, and the docking ring 122 is fixed.
[0029] A specific application of this embodiment is:
[0030] When in use, the docking ring 122 is put on the cable, and the cable will first pass through the rubber sleeve 124. The rubber sleeve 124 can wrap the cable to play the first dust-proof role and reduce the entry of dust. The cable will pass through the arc block 226, and the arc block 226 will be pushed, which will drive the clamping plate 222 to move together. Since the left side of the clamping plate 222 rotates on the rotating shaft 223, the right side of the clamping plate 222 will be squeezed, and the spring piece 224 will be squeezed under the action of the supporting block 225, and then the arc block 226 will be tightly attached to the cable through the reverse force, so that the cable is clamped and fixed, and the cable will not move when it is connected to the terminal block 13, which is convenient for the staff to operate. The bottom of the arc block 226 is set with a semicircular opening, which can better match the cable. The block 226 is made of rubber and its surface is uneven, which can increase friction, reduce cable loosening, and protect the cable from damage. After the cable passes through the docking ring 122, the cable is passed through the fixing ring 121 and the rubber sleeve 125 to enter the inside of the junction box 1. The rubber sleeve 125 can play a sealing role again to reduce dust from entering the inside of the junction box 1. Then, the right side of the docking ring 122 is docked with the left side of the fixing ring 121, and the threaded ring 123 is rotated to be threadedly connected with the left side of the fixing ring 121. Since the threaded ring 123 rotates on the limit ring 221, it will drive the docking ring 122 to move to the right, so that the docking ring 122 is tightly attached to the fixing ring 121, and the fixing of the docking ring 122 is completed. The staff can install the cable connector and the terminal block 13;
[0031] After the installation is completed, the cover plate 11 is plugged into the top of the junction box 1, and the positioning frame 112 enters the interior of the junction box 1 to play a positioning role. The fixing plate 111 will first contact the holder 14, and the holder 14 is pushed toward the interior of the junction box 1, then the slide bar 141 slides inside the junction box 1 and stretches the spring 142. When the bottom of the cover plate 11 contacts the top of the junction box 1, the slot inside the fixing plate 111 corresponds to the holder 14, and the holder 14 is elastically ejected into the slot by the spring 142, and the fixing plate 111 is clamped and fixed, so that the cover plate 11 is fixed, thereby sealing the junction box 1. Since the corresponding sides of the holder 14 shell slots are both arc-shaped triangles, when the cover plate 11 needs to be removed, it can be removed by holding the fixing plate 111 and pulling it hard, and a convex block is provided on the outer surface of the fixing plate 111 to increase the friction and facilitate pulling.
[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A terminal block for a cable junction box for a coal mine, comprising a junction box (1), wherein the top of the junction box (1) is in contact with a cover plate (11), the left and right sides of the junction box (1) are both provided with holes, and a sealing component (12) is provided inside the hole, Features: The bottom of the inner wall of the junction box (1) is fixedly connected with a junction seat (13); the sealing assembly (12) comprises a fixing ring (121); a docking ring (122) is arranged on the left side of the fixing ring (121); A threaded ring (123) is sleeved on the outside of the docking ring (122), a rubber sleeve 1 (124) is fixedly connected to the left side of the docking ring (122), and a rubber sleeve 2 (125) is fixedly connected to the right side of the fixing ring (121).
2. A terminal block for a cable junction box for coal mines according to claim 1, It is characterized in that The interiors of the fixing ring (121) and the docking ring (122) are both provided with cavities, the outer surface of the docking ring (122) is fixedly connected to a limit ring (221), the interior cavity of the docking ring (122) is provided with two clamping plates (222), and the left side of the clamping plate (222) is rotatably connected to a rotating shaft (223).
3. A terminal block for a cable junction box for coal mines according to claim 2, It is characterized in that A spring sheet (224) is provided at a position corresponding to the top of the inner wall of the docking ring (122) of the clamping plate (222); the top and bottom of the spring sheet (224) are rotatably connected to a support block (225); the top of the support block (225) located at the top is fixedly connected to the top of the inner wall of the docking ring (122); the bottom of the support block (225) located at the bottom is fixedly connected to a side of the clamping plate (222) close to the spring sheet (224); and the side of the clamping plate (222) away from the spring sheet (224) is fixedly connected to an arc block (226).
4. A terminal block for a cable junction box for coal mines according to claim 3, It is characterized in that The front and back sides of the cover plate (11) are fixedly connected to fixing plates (111), the bottom of the cover plate (11) is fixedly connected to a positioning frame (112), the positioning frame (112) is plugged into the top of the junction box (1), and a slot is provided on a side of the fixing plate (111) close to the junction box (1).
5. A terminal block for a cable junction box for coal mines according to claim 4, It is characterized in that The junction box (1) is provided with a slide groove on the front and back sides, a holder (14) is slidably connected to the inner wall of the slide groove, a slide rod (141) is fixedly connected to the side of the holder (14) away from the fixed plate (111), and a spring (142) is sleeved on the outer side of the slide rod (141).
6. A terminal block for a cable junction box for coal mines according to claim 5, It is characterized in that The bottom of the cover plate (11) contacts the top of the junction box (1), the card slot is matched with the card seat (14), and the card slot and the card seat (14) are arranged in an arc-shaped triangle on one side corresponding to each other.
7. The terminal block of a cable junction box for coal mines according to claim 5, It is characterized in that The left side of the fixing ring (121) is plugged into the right side of the docking ring (122); an annular groove is provided on the inner wall of the threaded ring (123); the annular groove is rotatably connected to the limiting ring (221); and the inner wall of the threaded ring (123) is threadedly connected to the outer surface of the fixing ring (121).
8. The terminal block of a cable junction box for coal mines according to claim 6, It is characterized in that The front and back sides of the rotating shaft (223) are respectively fixedly connected to the front and back sides of the inner wall of the fixing ring (121); the outer surface of the fixing ring (121) is fixedly connected to the inner wall of the hole; and the front and back sides of the spring (142) are respectively fixedly connected to the inner wall of the sliding groove and the outer surface of the sliding rod (141).