A sealing protection device for an explosion-proof junction box

Abstract

The utility model belongs to sealing protection device technical field, specifically is a kind of sealing protection device for explosion-proof junction box, including box body and box cover;Through the setting of sealing mechanism, cooperation box cover and rack, the locking of box cover and the synchronous sealing of wiring hole can be carried out, operation steps are simplified, wiring efficiency is improved, cable is sequentially threaded through driving disc, connecting ring, sealing ring and the wiring hole on box body and enters box body to carry out the connection of cable line, box cover is pressed to box body, manually pulls and pushes the knob, positioning block completely enters into positioning groove, rack and gear contact, driving disc rotates, transmission block drives clamping block to move to rubber sealing ring direction and presses rubber sealing ring, more and cable adhere further to strengthen sealing, box cover box body abuts and adheres, one end of positioning block is inserted into card slot, box cover is not movable, complete sealing strengthening is completed at the same time to limit box cover, operation steps are simplified.

Description

Technical Field

[0001] This utility model belongs to the technical field of sealing and protection devices, specifically a sealing and protection device for explosion-proof junction boxes. Background Technology

[0002] In hazardous environments such as petroleum, chemical, and coal mines where flammable and explosive gases or dust exist, explosion-proof junction boxes, as critical components for electrical wiring connections, directly impact production safety due to their sealing and protective performance. If the seal fails, flammable and explosive media from the outside may enter the box, potentially causing an explosion upon contact with sparks from electrical components. Simultaneously, moisture, dust, and other impurities inside the box can accelerate wiring aging and equipment malfunctions, seriously threatening the stability of industrial production and the lives of operators.

[0003] The sealing method for the wiring holes on explosion-proof junction boxes usually adopts a single rubber sealing ring structure and is achieved by tightening with bolts. However, this sealing method is relatively cumbersome. After the bolts of the explosion-proof box body and cover are installed, the rubber ring needs to be tightened again, resulting in low wiring installation efficiency. Therefore, a sealing and protection device for explosion-proof junction boxes is proposed to address the above problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a sealing and protective device for explosion-proof junction boxes is proposed.

[0005] The technical solution adopted by this utility model to solve its technical problem is: the explosion-proof junction box sealing protection device of this utility model includes a box body and a box cover; the bottom of the box cover is fixedly connected to a rack by a limiting ring, and both sides of the box body are fixedly connected to sealing rings; the box cover is provided with a limiting member, and the limiting member is used to limit the box cover to the top of the box body.

[0006] The housing is equipped with a sealing mechanism, which includes a drive disc rotatably connected to one end of the sealing ring via a connecting ring. A drive groove is formed on one side of the drive disc, and a transmission block is slidably connected within the drive groove. A positioning rod is fixedly connected to the inner wall of the connecting ring, and a connecting block is slidably connected to the outer wall of the positioning rod. One end of the transmission block extends out of the drive groove and is fixedly connected to the connecting block. A pressing block is fixedly connected to one end of the connecting block. Gears are provided on the outer wall of the drive disc. Through the sealing mechanism, in conjunction with the housing cover and rack, locking the housing cover and strengthening the seal of the wiring holes can be performed simultaneously, simplifying the operation and improving wiring efficiency.

[0007] Preferably, the limiting component includes a positioning groove formed on the inner sidewall of the limiting ring. A fixing rod is fixedly connected to the inner sidewall of the positioning groove. A positioning block is slidably connected to the outer wall of the fixing rod. A spring is sleeved on the outer wall of the fixing rod. One end of the positioning block extends out of the positioning groove and is inserted into a slot formed on the outer wall of the box. The other end of the positioning block is fixedly connected to a toggle rod. The other end of the toggle rod passes through the limiting ring and communicates with the outside. Through the arrangement of the fixing rod, spring, positioning block, slot, and toggle rod, the positioning of the box cover can be completed quickly and easily, further simplifying the steps and improving wiring efficiency.

[0008] Preferably, a toggle block is fixedly connected to one end of the lever located on the outside. The outer wall of the toggle block is provided with anti-slip texture. By setting the toggle block, it is easy to move the lever by pulling the toggle block.

[0009] Preferably, a baffle plate is fixedly connected to the bottom of the limiting ring, and a baffle groove is provided on the side of the baffle plate near the rack. The baffle plate and the baffle groove can facilitate the protection of the rack and the sealing mechanism.

[0010] Preferably, a sealing groove is provided on the top of the box body, and a sealing ring is provided in the sealing groove. The sealing groove and the sealing ring can facilitate the strengthening of the sealing between the box body and the lid after the box is fixed.

[0011] Preferably, a limiting block is fixedly connected to one side of the sealing ring near the drive disk. The limiting block is arc-shaped, which prevents the sealing rubber ring from deviating when it is placed between the drive disk and the sealing ring.

[0012] Preferably, a mounting block is fixedly connected to one side of the outer wall of the box, and a mounting hole is provided on one side of the mounting block. The mounting block and the mounting hole facilitate the fixing of the device to the place of use with bolts.

[0013] The beneficial effects of this utility model are:

[0014] This utility model provides a sealing and protective device for explosion-proof junction boxes. Through the sealing mechanism, in conjunction with the box cover and rack, locking the box cover and strengthening the seal of the wiring holes can be performed simultaneously, simplifying the operation and improving wiring efficiency. The cable is sequentially passed through the drive disc, connecting ring, sealing ring, and wiring holes on the box body before entering the box body for cable connection. The box cover is aligned with the box body and pressed against it. The actuating block is manually pulled, and the positioning block fully enters the positioning groove. The rack and gear contact, the drive disc rotates, and the transmission block, through the connecting block, drives the clamping block towards the rubber sealing ring, applying pressure to the rubber sealing ring for a closer fit with the cable and further strengthening the seal. The box cover and box body abut and fit together. One end of the positioning block moves out of the positioning groove and inserts into the slot, making the box cover immovable. This achieves both enhanced sealing and limiting of the box cover, simplifying the operation. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a structural diagram showing the separation of the box body and the box lid in this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the rack and pinion ring in this utility model;

[0019] Figure 4 This is an exploded structural diagram of the sealing ring and the drive disc in this utility model;

[0020] Figure 5 This is an exploded structural diagram of the drive disk and connecting ring in this utility model;

[0021] Legend:

[0022] 1. Box body; 2. Box cover; 3. Rack; 4. Sealing ring; 5. Sealing mechanism; 51. Drive disc; 52. Drive groove; 53. Transmission block; 54. Positioning rod; 55. Connecting block; 56. Pressing block; 57. Gear; 6. Positioning groove; 7. Fixing rod; 8. Spring; 9. Positioning block; 10. Actuating rod; 11. Actuating block; 12. Baffle plate; 13. Sealing groove; 14. Limiting block; 15. Mounting block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] Please see Figures 1-4 This utility model provides a sealing and protective device for an explosion-proof junction box, including a rectangular box body 1 and a rectangular box cover 2; the bottom of the box cover 2 is fixedly connected to a rack 3 by a rectangular limiting ring, there are six racks 3, and the two sets of racks 3 are symmetrically distributed in groups of three. Three equally spaced wiring holes are opened on both sides of the box body 1, and a circular sealing ring 4 is fixedly connected to both sides of the box body 1, the sealing ring 4 and the wiring hole are positioned corresponding to each other.

[0026] A mounting block 15 is fixedly connected to one side of the outer wall of the box 1. A mounting hole is provided on one side of the mounting block 15. The mounting block 15 and the mounting hole make it easy to fix the device at the place of use with bolts.

[0027] A sealing groove 13 is provided on the top of the box body 1, and a sealing ring is provided in the sealing groove 13. The sealing groove 13 and the sealing ring can facilitate the strengthening of the sealing between the box cover 2 and the box body 1 after they are fixed.

[0028] The lid 2 is provided with a limiting component, which is used to limit the lid 2 to the top of the box body 1. The limiting component includes a positioning groove 6 opened in the inner side wall of the limiting ring. A fixing rod 7 is fixedly connected to the inner side wall of the positioning groove 6. A positioning block 9 is slidably connected to the outer wall of the fixing rod 7. A spring 8 is sleeved on the outer wall of the fixing rod 7. One end of the positioning block 9 extends out of the positioning groove 6 and is inserted into a rectangular slot opened in the outer wall of the box body 1. The other end of the positioning block 9 is fixedly connected to a toggle rod 10. The other end of the toggle rod 10 passes through the limiting ring and communicates with the outside.

[0029] The setting of fixing rod 7, spring 8, positioning block 9, slot and toggle rod 10 makes it easy to quickly position the cover 2, further simplifying the steps and improving wiring efficiency.

[0030] A toggle block 11 is fixedly connected to one end of the lever 10 located on the outside. The outer wall of the toggle block 11 is provided with anti-slip texture. By setting the toggle block 11, it is easy to move the lever 10 by pulling the toggle block 11.

[0031] The box body 1 is provided with a sealing mechanism 5. The sealing mechanism 5 includes a circular drive disk 51 that is rotatably connected to one end of the sealing ring 4 via a circular connecting ring. Six rectangular drive grooves 52 are provided on one side of the drive disk 51.

[0032] A limiting block 14 is fixedly connected to one side of the sealing ring 4 near the drive block. The limiting block 14 is set in an arc shape. By setting the limiting block 14, the sealing rubber ring will not deviate when it is placed between the drive block and the sealing ring 4.

[0033] A cylindrical transmission block 53 is slidably connected inside the drive groove 52. Six ring-shaped positioning rods 54 are fixedly connected to the inner side wall of the connecting ring. A rectangular connecting block 55 is slidably connected to the outer wall of the positioning rods 54. One end of the transmission block 53 extends out of the drive groove 52 and is fixedly connected to the connecting block 55. An arc-shaped extrusion block 56 is fixedly connected to one end of the connecting block 55. A gear 57 is provided on the outer wall of the drive disk 51.

[0034] By setting the sealing mechanism 5, together with the cover 2 and the rack 3, the locking of the cover 2 and the enhanced sealing of the wiring hole can be carried out simultaneously, simplifying the operation steps and improving the wiring efficiency.

[0035] A baffle plate 12 is fixedly connected to the bottom of the limiting ring. A baffle groove is provided on the side of the baffle plate 12 near the rack 3. The baffle plate 12 and the baffle groove can be used to protect the rack 3 and the sealing mechanism 5.

[0036] Based on the above structure, the present invention includes the following implementation process:

[0037] First, place box 1 on the mounting plate at the wiring point, and pass one end of the bolt through the mounting hole and the positioning hole pre-drilled by the external device on the mounting plate in sequence, and then put the nut on the bolt and tighten it;

[0038] A circular sealing rubber ring is placed between the drive disk 51 and the sealing ring 4, i.e., in the space inside the connecting ring, and is limited by multiple limiting blocks 14. Then the cable can be passed through the drive disk 51, the connecting ring, the sealing ring 4 and the wiring hole on the box 1 in sequence and enter the box 1. The cable line is connected inside the box 1. After the wiring is completed, the inner wall of the sealing rubber ring fits against the outer wall of the cable, and the sealing of the drive disk 51, the connecting ring, the sealing ring 4 and the wiring hole on the box 1 is initially completed.

[0039] Align the lid 2 with the body 1 and press it against the body 1. Ensure that the upper limit ring can be stably fitted onto the body 1. At the same time, manually pull the actuating block 11 and move the positioning block 9 through the fixing rod 7 so that the positioning block 9 is fully inserted into the positioning groove 6.

[0040] Subsequently, rack 3 contacts gear 57 and drives drive disk 51 to rotate. The rotation of drive disk 51 causes sliding transmission block 53 in drive groove 52 to move gradually. Transmission block 53 drives clamping block to move towards rubber sealing ring through connecting block 55 and applies pressure to rubber sealing ring, causing rubber sealing ring to be pressed open and fit more closely to cable, thus further strengthening the seal of drive disk 51, connecting ring, sealing ring 4 and wiring hole on box 1.

[0041] While sealing the drive plate 51, connecting ring, sealing ring 4 and wiring holes on the box body 1 at the cable contact point, the box cover 2 also abuts and fits against the box body 1. At this time, the positioning groove 6 is aligned with the slot. When the toggle block 11 is released, under the pressure of the spring 8, one end of the positioning block 9 moves out of the positioning groove 6 and inserts into the slot, making the box cover 2 immovable. This completes the sealing reinforcement and limits the position of the box cover 2, simplifying the operation steps.

[0042] When it is necessary to process the wiring, pull the toggle block 11 again and move the positioning block 9 through the fixing rod 7 so that the positioning block 9 is fully inserted into the positioning groove 6, thereby releasing the restriction on the cover 2 and removing the cover 2.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sealing and protective device for an explosion-proof junction box, characterized in that: It includes a box body (1) and a box cover (2); the bottom of the box cover (2) is fixedly connected to a rack (3) by a limiting ring, and both sides of the box body (1) are fixedly connected to a sealing ring (4). The box cover (2) is provided with a limiting component, and the limiting component is used to limit the box cover (2) to the top of the box body (1). The box body (1) is provided with a sealing mechanism (5). The sealing mechanism (5) includes a drive disk (51) rotatably connected to one end of the sealing ring (4) via a connecting ring. A drive groove (52) is provided on one side of the drive disk (51). A transmission block (53) is slidably connected in the drive groove (52). A positioning rod (54) is fixedly connected to the inner wall of the connecting ring. A connecting block (55) is slidably connected to the outer wall of the positioning rod (54). One end of the transmission block (53) extends out of the drive groove (52) and is fixedly connected to the connecting block (55). A pressing block (56) is fixedly connected to one end of the connecting block (55). A gear (57) is provided on the outer wall of the drive disk (51).

2. The sealing and protective device for an explosion-proof junction box according to claim 1, characterized in that: The limiting component includes a positioning groove (6) formed on the inner side wall of the limiting ring. A fixing rod (7) is fixedly connected to the inner side wall of the positioning groove (6). A positioning block (9) is slidably connected to the outer wall of the fixing rod (7). A spring (8) is sleeved on the outer wall of the fixing rod (7). One end of the positioning block (9) extends out of the positioning groove (6) and is inserted into a slot formed on the outer wall of the box (1). The other end of the positioning block (9) is fixedly connected to a toggle rod (10). The other end of the toggle rod (10) passes through the limiting ring and communicates with the outside.

3. The sealing and protective device for an explosion-proof junction box according to claim 2, characterized in that: The toggle lever (10) is fixedly connected to a toggle block (11) at one end located on the outside. The outer wall of the toggle block (11) is provided with anti-slip texture.

4. The sealing and protective device for an explosion-proof junction box according to claim 3, characterized in that: The bottom of the limiting ring is fixedly connected to a baffle plate (12), and the baffle plate (12) has a baffle groove on one side near the rack (3).

5. A sealing and protective device for an explosion-proof junction box according to claim 4, characterized in that: The top of the box (1) is provided with a sealing groove (13), and a sealing ring is provided in the sealing groove (13).

6. The sealing and protective device for an explosion-proof junction box according to claim 5, characterized in that: The sealing ring (4) is fixedly connected to a limiting block (14) on one side near the drive disk (51), and the limiting block (14) is set in an arc shape.

7. A sealing and protective device for an explosion-proof junction box according to claim 6, characterized in that: A mounting block (15) is fixedly connected to one side of the outer wall of the box (1), and a mounting hole is provided on one side of the mounting block (15).

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