Cable fixing assembly structure for distribution box

Abstract

The utility model discloses a cable fixing assembly structure for a distribution box, which comprises a box body, the box body is provided with a plurality of wiring assemblies, and each wiring assembly comprises a wiring pipe. A plurality of clamping blocks which are used for moving towards the axis direction of the wiring pipe are uniformly distributed on the inner wall of the wiring pipe by taking a circle point as the axis, pushing parts are arranged on the back surfaces of the clamping blocks and protrude out of the outer wall of the wiring pipe, a sealing sleeve is arranged in the wiring pipe, a transmission piece is arranged above the sealing sleeve, and the transmission piece is connected with the sealing sleeve. An expansion part used for enabling the sealing sleeve to be tightly attached to the cable is arranged in the wiring pipe, and the wiring pipe is provided with a pressing nut. According to the utility model, each wiring assembly is only used for one cable to pass through, so that the cables are effectively restrained, the one-to-one cable restraining mode fundamentally solves the problem of cable scattering, the cables are arranged in order, and meanwhile, the ordered cable arrangement mode also provides convenience for subsequent maintenance work.

Description

Technical Field

[0001] This utility model relates to the field of distribution box technology, and in particular to a cable fixing component structure for distribution boxes. Background Technology

[0002] Distribution boxes are indispensable special equipment in power distribution systems. According to different installation methods, they can be divided into two types: floor-mounted and wall-mounted. Depending on the installation environment, the ease of installation and stability of wall-mounted distribution boxes are of paramount importance as important equipment for power distribution and control.

[0003] In existing technologies, distribution boxes typically require multiple cables to connect to external devices for power distribution. In practical applications, these cables enter the box through wiring holes without effective restraint, resulting in loose and tangled cables. This loose cable arrangement not only affects the aesthetics of the distribution box but, more importantly, inconveniences subsequent maintenance and repair. Maintenance personnel often spend considerable time searching for and identifying target cables amidst the tangled mess, reducing work efficiency and potentially causing line damage or even safety accidents due to improper handling. Furthermore, the gaps where cables pass through the box are not effectively sealed, allowing humid air to infiltrate. Electrical components exposed to a humid environment for extended periods experience a gradual decline in insulation performance and an increased risk of corrosion, thus shortening their lifespan and reducing the reliability and safety of the distribution box. Therefore, the applicant has developed a beneficial design and found a solution to the above problems. The technical solution described below arose from this context. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of traditional distribution box designs and provide a product that improves wiring sealing and facilitates maintenance.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A cable fixing assembly structure for a distribution box includes a box body. The box body is provided with a plurality of wiring assemblies. Each wiring assembly includes a wiring conduit. The inner wall of the wiring conduit is provided with a plurality of equally spaced clamping blocks that move in the direction of their axis, with a dot as the center. The back of each clamping block is provided with a pushing part that protrudes from the outer wall of the wiring conduit. A sealing sleeve is provided inside the wiring conduit. A transmission element is provided above the sealing sleeve. An expansion part is provided inside the wiring conduit to make the sealing sleeve fit tightly against the cable. A clamping nut is provided in the wiring conduit to push the pushing part to move and to apply a downward force to the transmission element.

[0007] Preferably, the outer wall of the sealing sleeve is provided with an O-ring, and the sealing sleeve is provided with a tightening part that matches the expansion part.

[0008] Preferably, the pushing part has a first inclined surface above it, the clamping block has limiting parts on both sides, the clamping block has a first extension part, and the first extension part has an abutment part.

[0009] Preferably, the conduit has a first recessed groove, the inner wall of the first recessed groove has a second through hole for the pushing part to pass through, the first recessed groove has a plurality of limiting grooves for accommodating limiting parts, the limiting grooves have a first through hole for the first extension part to pass through, the limiting part has a spring and acts on the limiting groove to keep the pushing part protruding out of the conduit.

[0010] Preferably, the first sink is provided with a second sink to accommodate the transfer member and the sealing sleeve, the expansion part is provided in the second sink, and the second sink, the transfer member, and the sealing sleeve are provided with wire holes for the cable to pass through.

[0011] Preferably, the transfer member has a second extension located between two clamping blocks. The second extension has a transfer portion and is perpendicular to it. A reinforcing rib is provided between the transfer portion and the second extension. The transfer portion protrudes from the wiring conduit.

[0012] Preferably, the outer wall of the connector is provided with a threaded groove, and the outer wall of the connector is also provided with a retaining ring located below the threaded groove.

[0013] Preferably, the clamping nut is threaded into the threaded groove, one end of the clamping nut is provided with a pressure-applying part, and the inner wall inlet of the clamping nut is provided with a second inclined surface.

[0014] Beneficial effects:

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) This utility model, by setting up wiring components, and each wiring component allows only one cable to pass through, achieves effective constraint on the cable. This one-to-one cable constraint method fundamentally solves the problem of cable messiness, making the cable neat and orderly. At the same time, this orderly cable arrangement method also provides convenience for subsequent maintenance work. Maintenance personnel can quickly and accurately identify and locate the target cable, avoiding misoperation and time-consuming search caused by cable messiness, thereby improving maintenance efficiency and reducing maintenance costs.

[0017] (2) In this utility model, by tightening the clamping nut, the transmission component is driven to apply downward pressure, causing the sealing sleeve to deform under the squeezing action of the expansion part, thereby tightly fitting the cable surface, effectively blocking the penetration of external humid air and dust, and significantly improving the sealing performance of the distribution box; at the same time, under the squeezing of the clamping nut, the clamping block is driven to retract towards the axis of the wiring pipe, realizing a firm clamping of the cable. This clamping structure can effectively resist the influence of external mechanical force, ensuring the long-term stability and reliability of the electrical connection between the cable and the electrical components. Through the mutual cooperation of the above structural designs, not only is the service life and insulation performance of the electrical components in the box significantly improved, but the overall reliability and safety of the distribution box are also enhanced, providing a strong guarantee for the stable operation of the power system. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a cable fixing assembly for a distribution box according to the present invention;

[0019] Figure 2 This utility model Figure 1 A partial enlarged view A of the structure of a cable fixing assembly for a distribution box;

[0020] Figure 3 This is a side cross-sectional view of the cable fixing assembly structure for a distribution box according to the present invention.

[0021] Figure 4 An explosion-proof structure of a cable fixing assembly for a distribution box according to this utility model. Figure 1 ;

[0022] Figure 5 An explosion-proof structure of a cable fixing assembly for a distribution box according to this utility model. Figure 2 ;

[0023] The correspondence between the labels and component names in the attached figures is as follows:

[0024] Reference numerals: 1. Housing; 2. Wiring assembly; 3. Wiring conduit; 4. Clamping block; 5. Sealing sleeve; 6. Transmission component; 7. Compression nut; 8. O-ring seal; 9. Wire hole;

[0025] 31. Expansion section; 32. Retaining ring; 33. First countersunk groove; 34. Second through hole; 35. Limiting groove; 36. First through hole; 37. Second countersunk groove; 38. Threaded groove;

[0026] 41. Pushing part; 42. Limiting part; 43. Spring; 44. First extension part; 45. Contact part;

[0027] 411. First inclined surface;

[0028] 51. Tightening section;

[0029] 61. Second extension; 62. Transmission section; 63. Reinforcing rib;

[0030] 71. Pressure application section; 72. Second inclined surface. Detailed Implementation

[0031] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0034] Reference example Figures 1 to 5 A cable fixing assembly structure for a distribution box includes a box body 1. The box body 1 is provided with a plurality of wiring assemblies 2. Each wiring assembly 2 includes a wiring conduit 3. The inner wall of the wiring conduit 3 is provided with a plurality of equally spaced clamping blocks 4 that move towards their axial direction, with a dot as the axis. The back of each clamping block 4 is provided with a pushing part 41 that protrudes from the outer wall of the wiring conduit 3. A sealing sleeve 5 is provided inside the wiring conduit 3. A transmission member 6 is provided above the sealing sleeve 5. An expansion part 31 is provided inside the wiring conduit 3 to make the sealing sleeve 5 fit tightly against the cable. The wiring conduit 3 is provided with a clamping nut 7 for pushing. The driving part 41 moves and applies a downward force to the transmission part 6. By setting the wiring assembly 2, and each wiring assembly 2 allows only one cable to pass through, the cable is effectively constrained. This one-to-one cable constraint method fundamentally solves the problem of cable messiness, making the cables neat and orderly. At the same time, this orderly cable arrangement also provides convenience for subsequent maintenance work. Maintenance personnel can quickly and accurately identify and locate the target cable, avoiding misoperation and time-consuming search caused by cable messiness, thereby improving maintenance efficiency and reducing maintenance costs.

[0035] It is worth mentioning that the outer wall of the sealing sleeve 5 is provided with an O-ring seal 8, and the sealing sleeve 5 is provided with a tightening part 51 that matches the expansion part 31. The O-ring seal 8 improves the sealing performance between the sealing sleeve 5 and the second recess 37. The diameters of the tightening part 51 and the expansion part 31 are larger at the top and smaller at the bottom, and the whole has a conical structure. Therefore, when the tightening part 51 gradually penetrates into the interior of the expansion part 31, the diameter gradually decreases and the tightening part 51 contracts towards the axis, thus tightly fitting the outer wall surface of the cable and effectively blocking the penetration of external humid air.

[0036] It is worth mentioning that the pusher 41 is provided with a first inclined surface 411 above it, the clamping block 4 is provided with a limiting part 42 on both sides, the clamping block 4 is provided with a first extension part 44, the first extension part 44 is provided with a contact part 45, the first inclined surface 411 reduces the resistance of the clamping nut 7 to drive the pusher 41 to move, the force of the spring 43 is transmitted to the clamping block 4 through the limiting part 42, and the contact part 45 is arc-shaped, fits the outer wall of the cable, and increases the contact area between the contact part 45 and the cable.

[0037] It is worth mentioning that the connector 3 is provided with a first recess 33, the inner wall of the first recess 33 is provided with a second through hole 34 for the pushing part 41 to pass through, the first recess 33 is provided with a plurality of limiting grooves 35 for accommodating the limiting part 42, the limiting groove 35 is provided with a first through hole 36 for the first extension part 44 to pass through, the limiting part 42 is provided with a spring 43 and acts on the limiting groove 35 to keep the pushing part 41 protruding out of the connector 3;

[0038] It is worth mentioning that the first sink 33 is provided with a second sink 37 for accommodating the transfer member 6 and the sealing sleeve 5. The expansion part 31 is provided in the second sink 37. The second sink 37, the transfer member 6, and the sealing sleeve 5 are provided with wire holes 9 for the cable to pass through.

[0039] It is worth mentioning that the transmission member 6 is provided with a second extension 61 and is located between the two clamping blocks 4. The second extension 61 is provided with a transmission part 62 and is perpendicular to it. A reinforcing rib 63 is provided between the transmission part 62 and the second extension 61. The transmission part 62 protrudes from the wiring tube 3. The reinforcing rib 63 prevents the transmission part 62 from shifting its position when it is squeezed.

[0040] It is worth mentioning that the outer wall of the connector 3 is provided with a threaded groove 38, and the outer wall of the connector 3 is also provided with a retaining ring 32, which is located below the threaded groove 38. The retaining ring 32 restricts the descent distance of the clamping nut 7.

[0041] It is worth mentioning that the clamping nut 7 is threaded to the threaded groove 38. One end of the clamping nut 7 is provided with a pressure-applying part 71. The inner wall inlet of the clamping nut 7 is provided with a second inclined surface 72. The pressure-applying part 71 applies downward pressure to the transmission part 62. The second inclined surface 72 reduces the friction of the driving and pushing part 41 of the clamping nut 7, so that the clamping block 4 can move smoothly. The outer wall of the clamping nut 7 is provided with knurling to increase the operator's ability to rotate it.

[0042] The working principle of this utility model is described as follows:

[0043] After the cable is sequentially passed through the transmission component 6, the sealing sleeve 5, and the wire hole 9, and connected to the electrical components inside the housing 1, the pressure nut 7 is gradually tightened, and the pressure applying part 71 applies downward pressure to the transmission part 62.

[0044] The transmission component 6 presses the sealing sleeve 5 into the depth of the expansion part 31. Under the pressure of the expansion part 31, the sealing sleeve 5 deforms and then fits tightly against the cable surface, effectively blocking the penetration of external humid air and dust, and significantly improving the sealing performance of the distribution box.

[0045] Simultaneously, under the pressure of the clamping nut 7, the clamping block 4 retracts towards the axis of the connecting pipe 3, and the contact part 45 securely clamps the cable. This clamping structure can effectively resist the influence of external mechanical forces, ensuring the long-term stability and reliability of the electrical connection between the cable and electrical components. Through the cooperation of the above structural designs, not only is the service life and insulation performance of the electrical components in the box 1 significantly improved, but the overall reliability and safety of the distribution box are also enhanced, providing a strong guarantee for the stable operation of the power system. Furthermore, the cable can be fixed and sealed simply by rotating the clamping nut 7, without the need for tools, effectively reducing the workload of cable fixing.

[0046] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A cable fixing assembly structure for a distribution box, comprising a box body (1), wherein the box body (1) is provided with a plurality of wiring assemblies (2), characterized in that: The wiring assembly (2) includes a wiring tube (3). The inner wall of the wiring tube (3) is evenly distributed with a number of clamping blocks (4) at equal intervals for moving in the direction of its axis, with a dot as the axis. The back of the clamping block (4) is provided with a pushing part (41) and protrudes from the outer wall of the wiring tube (3). The wiring tube (3) is provided with a sealing sleeve (5). A transmission member (6) is provided above the sealing sleeve (5). The wiring tube (3) is provided with an expansion part (31) for making the sealing sleeve (5) fit tightly against the cable. The wiring tube (3) is provided with a clamping nut (7) for pushing the pushing part (41) to move and applying a downward force to the transmission member (6).

2. The cable fixing assembly structure for a distribution box according to claim 1, characterized in that: The outer wall of the sealing sleeve (5) is provided with an O-ring (8), and the sealing sleeve (5) is provided with a tightening part (51) that matches the expansion part (31).

3. The cable fixing assembly structure for a distribution box according to claim 1, characterized in that: The pushing part (41) has a first inclined surface (411) above it, the clamping block (4) has a limiting part (42) on both sides, the clamping block (4) has a first extension part (44), and the first extension part (44) has an abutting part (45).

4. The cable fixing assembly structure for a distribution box according to claim 3, characterized in that: The connector (3) is provided with a first recess (33), and the inner wall of the first recess (33) is provided with a second through hole (34) for the push part (41) to pass through. The first recess (33) is provided with a plurality of limiting grooves (35) for accommodating the limiting part (42). The limiting groove (35) is provided with a first through hole (36) for the first extension part (44) to pass through. The limiting part (42) is provided with a spring (43) and acts on the limiting groove (35) to keep the push part (41) protruding out of the connector (3).

5. The cable fixing assembly structure for a distribution box according to claim 4, characterized in that: The first sink (33) is provided with a second sink (37) for accommodating the transfer member (6) and the sealing sleeve (5). The expansion part (31) is provided in the second sink (37). The second sink (37), the transfer member (6), and the sealing sleeve (5) are provided with wire holes (9) for the cable to pass through.

6. The cable fixing assembly structure for a distribution box according to claim 1, characterized in that: The transfer member (6) is provided with a second extension (61) and is located between two clamping blocks (4). The second extension (61) is provided with a transfer part (62) and is perpendicular to it. A reinforcing rib (63) is provided between the transfer part (62) and the second extension (61). The transfer part (62) protrudes from the wiring tube (3).

7. The cable fixing assembly structure for a distribution box according to claim 1, characterized in that: The outer wall of the connector (3) is provided with a threaded groove (38), and the outer wall of the connector (3) is also provided with a retaining ring (32) located below the threaded groove (38).

8. The cable fixing assembly structure for a distribution box according to claim 7, characterized in that: The clamping nut (7) is threaded into the threaded groove (38), and one end of the clamping nut (7) is provided with a pressure-applying part (71). The inner wall inlet of the clamping nut (7) is provided with a second inclined surface (72).

Images