Combined wiring terminal

Abstract

The invention relates to the technical field of wiring terminals, and discloses a combined wiring terminal which comprises a wiring box and a plurality of wiring holes formed in the front side of the wiring box, and further comprises a plurality of fixing parts which are all installed on the wiring box; the number of the anti-falling parts is multiple, and the multiple anti-falling parts are arranged on the front sides of the multiple wiring holes respectively; the number of the locking parts is multiple, and the multiple locking parts are arranged on the multiple anti-disengaging parts correspondingly; the fixing part comprises a fixing assembly, and the fixing assembly is installed on the junction box. Through the arrangement of the fixing part, the problems that in the using process of an existing wiring terminal, the friction torque of threaded connection between a fixing screw and a matched connecting piece is insufficient, self-rotation loosening is likely to happen due to external force such as vibration, the connection stability of the terminal and an electric wire is poor, the connection firmness is difficult to guarantee, and then poor contact is likely to happen are solved.

Description

Technical Field

[0001] This invention relates to the field of terminal block technology, specifically a combined terminal block. Background Technology

[0002] With the rapid development of industrial automation and power systems, the demand for combined terminal blocks, as a core component of circuit connections, is constantly increasing. In scenarios such as power equipment and automated control devices, the connection stability of combined terminal blocks directly affects the operational reliability of the entire circuit system. Therefore, high-performance combined terminal blocks are needed to meet the connection requirements under complex working conditions.

[0003] However, in the use of existing terminal blocks, the friction torque of the threaded connection between the fixing screw and the matching connector is insufficient. It is easy for the terminal block to loosen due to self-rotation caused by external forces such as vibration, resulting in poor connection stability between the terminal block and the wire, making it difficult to ensure the firmness of the connection, and thus easily leading to poor contact. Summary of the Invention

[0004] The purpose of this invention is to provide a combined terminal block. By setting a fixing part, it solves the problem that in the use of existing terminal blocks, the threaded connection between the fixing screw and the matching connector has insufficient friction torque, which makes it easy for the terminal block to loosen due to external forces such as vibration, resulting in poor connection stability between the terminal block and the wire, making it difficult to ensure the firmness of the connection, and thus easily causing poor contact problems.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a combined terminal block, comprising a junction box and a plurality of wiring holes formed on the front side of the junction box, and further comprising: a fixing part, wherein a plurality of fixing parts are provided and each of the fixing parts is mounted on the junction box; an anti-detachment part, wherein a plurality of anti-detachment parts are provided and each of the anti-detachment parts is respectively provided on the front side of the plurality of wiring holes; a locking part, wherein a plurality of locking parts are provided and each of the locking parts is respectively mounted on the plurality of anti-detachment parts; the fixing part includes a fixing component, wherein the fixing component is mounted on the junction box; and a ball bearing assembly, wherein the ball bearing assembly is disposed on the fixing component; The fixing assembly includes a rectangular hole in the top of the junction box, a rectangular plate fixedly connected inside the rectangular hole, a fixing screw passing through the rectangular plate and threadedly connected to the rectangular plate, a plurality of telescopic rods fixedly connected to the top inner wall of the fixing screw, an annular plate fixedly connected to the bottom of the plurality of telescopic rods, and a spring fitted on the outer wall of each of the plurality of telescopic rods, the top of each of the plurality of springs fixedly connected to the fixing screw, and the bottom of each of the plurality of springs fixedly connected to the annular plate; the rectangular plate communicates with the junction hole, and the annular plate is fitted on the outer wall of the fixing screw.

[0006] Further, the anti-off part comprises a driving assembly installed on the junction box, and an anti-off assembly arranged on the driving assembly.

[0007] Further, the locking part comprises a supporting assembly arranged on the driving assembly, and a locking assembly arranged on the supporting assembly.

[0008] Further, the ball assembly comprises a plurality of spherical grooves formed in the bottom of the annular plate, and a plurality of balls arranged in the spherical grooves, wherein the balls are in rolling connection with the spherical grooves.

[0009] Further, the driving assembly comprises an annular block fixedly connected to the front side of the junction box, an annular sliding groove formed in the annular block, a driving ring in sliding connection with the annular sliding groove, and a plurality of arc-shaped holes formed in the driving ring.

[0010] Further, the anti-off assembly comprises a plurality of limiting sliding grooves formed in the annular sliding groove, a plurality of sliding rods in sliding connection with the limiting sliding grooves, anti-skid insulating pads fixedly connected to the side of the sliding rods close to each other, and connecting rods arranged on the sliding rods.

[0011] Further, the supporting assembly comprises a sliding groove formed in the front side of the annular block, an L-shaped plate in sliding connection with the sliding groove, the L-shaped plate fixedly connected to the driving ring, and a cylindrical cover fixedly connected to the inner wall of the L-shaped plate.

[0012] Further, the locking assembly comprises a supporting rod penetrating through the cylindrical cover, the supporting rod in sliding connection with the cylindrical cover, a circular plate fixedly connected to the rear side of the supporting rod, the circular plate in sliding connection with the inner wall of the cylindrical cover, a second spring sleeved on the outer wall of the supporting rod, the front side of the second spring fixedly connected to the front inner wall of the cylindrical cover, the rear side of the second spring fixedly connected to the circular plate, and a locking piece arranged on the circular plate.

[0013] The present application has the following advantages: (1) The fixed part of the application, when in use, the electric wire is inserted into the junction box through the wiring hole, the fixing screw threaded with the rectangular plate is rotated to move downward, the annular plate is driven to move downward through the telescopic rod; after the annular plate contacts with the top of the rectangular plate, the fixing screw is continuously rotated, the friction between the annular plate and the wiring hole is reduced by the cooperation of the spherical groove and the ball, until the fixing screw cannot be rotated; in this process, the fixing screw extrudes the telescopic rod and spring one to deform, the axial elastic force generated by the spring one acts on the fixing screw to keep the stable axial pre-tightening force of the fixing screw and the rectangular plate, at the same time, the fixing screw completes the extrusion and fixation of the electric wire, which can increase the friction torque of the threaded connection between the fixing screw and the rectangular plate, effectively avoid the self-rotating loosening of the fixing screw due to vibration, ensure the stability of the electric wire connection, improve the firmness of the connection between the junction terminal and the electric wire, and reduce the risk of poor contact; (2) The application is provided with a anti-loosening part, the L-shaped plate drives the driving ring fixedly connected thereto to slide in the annular sliding groove, the driving ring synchronously drives the arc-shaped hole to move; by the cooperation of the arc-shaped hole and the limiting sliding groove, the driving ring moves the connecting rod through the arc surface, the connecting rod drives the sliding rod fixedly connected thereto to move in the limiting sliding groove to the direction of the electric wire, the sliding rod in turn drives the anti-skid insulating pad to synchronously move, finally realizing the fixation of the electric wire to prevent it from loosening, supplementing the deficiency of the single fixing structure, further ensuring the stability of the electric wire connection, and improving the use reliability of the junction terminal; (3) The application is provided with a locking part, the handle fixedly connected with the supporting rod is pulled to drive the supporting rod to move on the cylindrical cover, the supporting rod drives the locking block to move and disengage from the corresponding locking groove through the circular plate connected thereto, in this process, the circular plate extrudes the spring two to deform to generate elastic force; then the handle is loosened, the spring two releases the elastic force to push the circular plate to reset, drives the locking block to be clamped into the corresponding locking groove, the locking block and the locking groove are matched to form clamping through the right-angled surface, the position of the L-shaped plate is limited to realize the fixation of the driving ring, avoid the displacement of the driving ring due to external force, ensure the operation stability of the overall structure, and reduce the risk of structural loosening failure; Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the partial sectional structure of the fixed part of the present application; Figure 3 Partial structure diagram of fixed component of the present application; Figure 4 Partial explosion structure diagram of ball assembly of the present application; Figure 5 Partial structure diagram of anti-off part of the present application; Figure 6 Partial sectional structure diagram of driving assembly of the present application; Figure 7 Partial sectional explosion structure diagram of anti-off part of the present application; Figure 8 Partial sectional structure diagram of locking part of the present application; Figure 9 Partial structure diagram of the present application Figure 8 Enlarged structure diagram of A of the present application.

[0016] In the drawings, the components represented by each reference numeral are listed as follows: In the drawings: 111, junction box; 112, junction hole; 2, fixed part; 21, fixed component; 211, rectangular hole; 212, rectangular plate; 213, fixed screw; 214, telescopic rod; 215, annular plate; 216, spring I; 22, ball assembly; 221, spherical groove; 222, ball; 3, anti-off part; 31, driving assembly; 311, annular block; 312, annular sliding slot; 313, driving ring; 314, arc-shaped hole; 32, anti-off assembly; 321, limiting sliding slot; 322, sliding rod; 323, anti-slip insulating pad; 324, connecting rod; 4, locking part; 41, supporting assembly; 411, sliding slot; 412, L-shaped plate; 413, cylindrical cover; 42, locking assembly; 421, supporting rod; 422, circular plate; 423, spring II; 424, locking block; 425, locking slot; 426, handle. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0018] Please refer to Figures 1-9As shown, the application is a combined wiring terminal, comprising a wiring box 111 and a plurality of wiring holes 112 opened in the front side of the wiring box 111, further comprising: a plurality of fixing parts 2, the fixing parts 2 are installed on the wiring box 111; a plurality of anti-dropping parts 3, the anti-dropping parts 3 are arranged on the front side of the plurality of wiring holes 112; a plurality of locking parts 4, the locking parts 4 are arranged on the plurality of anti-dropping parts 3.

[0019] The fixing part 2 comprises a fixing assembly 21 installed on the wiring box 111, and a ball assembly 22 arranged on the fixing assembly 21; the fixing assembly 21 comprises a rectangular hole 211 opened in the top of the wiring box 111, a rectangular plate 212 fixedly connected in the rectangular hole 211, a fixing screw 213 penetrating through the rectangular plate 212, the fixing screw 213 being threadedly connected with the rectangular plate 212, a plurality of extension rods 214 fixedly connected with the inner wall of the top of the fixing screw 213, a ring plate 215 fixedly connected with the bottom of the plurality of extension rods 214, a plurality of springs I 216 sleeved on the outer wall of the plurality of extension rods 214, the plurality of springs I 216 being fixedly connected with the fixing screw 213 at the top and with the ring plate 215 at the bottom; the rectangular plate 212 is communicated with the wiring hole 112, the ring plate 215 is sleeved on the outer wall of the fixing screw 213, and the ball assembly 22 comprises a plurality of ball grooves 221 opened in the bottom of the ring plate 215, and a plurality of balls 222 arranged in the ball grooves 221; the plurality of balls 222 are rollingly connected with the plurality of ball grooves 221, and the fixing part 2 can increase the friction torque of the threaded connection between the fixing screw 213 and the rectangular plate 212, effectively avoid self-rotating loosening of the fixing screw 213 due to vibration, ensure the stability of the wire connection, improve the firmness of the connection between the wiring terminal and the wire, and reduce the risk of poor contact.

[0020] The anti-falling part 3 comprises a driving assembly 31 installed on the junction box 111, and an anti-falling assembly 32 arranged on the driving assembly 31. The driving assembly 31 comprises an annular block 311 fixedly connected to the front side of the junction box 111, an annular sliding groove 312 is formed in the annular block 311, a driving ring 313 is slidably connected in the annular sliding groove 312, and a plurality of arc-shaped holes 314 are formed in the driving ring 313. The annular block 311 corresponds to the junction hole 112, the driving ring 313 and the annular sliding groove 312 are both T-shaped, the anti-falling assembly 32 comprises a plurality of limiting sliding grooves 321 formed in the annular sliding groove 312, a plurality of sliding rods 322 are slidably connected in the limiting sliding grooves 321, a plurality of anti-skid insulating pads 323 are fixedly connected to the side of the sliding rods 322 close to each other, and connecting rods 324 are fixedly connected to the front side of the sliding rods 322. The connecting rods 324 are arranged in the arc-shaped holes 314. The connecting rods 324 are arranged in a circumferential array, and the connecting rods 324 are in contact with the arc-shaped holes 314. By arranging the anti-falling part 3, the electric wire is prevented from loosening, the deficiency of the single fixing structure is supplemented, the stability of the electric wire connection is further ensured, and the use reliability of the junction terminal is improved.

[0021] The locking part 4 comprises a supporting assembly 41 arranged on the driving assembly 31, and a locking assembly 42 arranged on the supporting assembly 41. The supporting assembly 41 comprises a sliding groove 411 formed in the front side of the annular block 311, an L-shaped plate 412 is slidably connected in the sliding groove 411, the L-shaped plate 412 is fixedly connected with the driving ring 313, and a cylindrical cover 413 is fixedly connected to the inner wall of the L-shaped plate 412. A circular hole is formed in the L-shaped plate 412, the sliding groove 411 is in communication with the annular sliding groove 312, the locking assembly 42 comprises a supporting rod 421 penetrating through the cylindrical cover 413, the supporting rod 421 is slidably connected with the cylindrical cover 413, a circular plate 422 is fixedly connected to the rear side of the supporting rod 421, the circular plate 422 is slidably connected with the inner wall of the cylindrical cover 413, a spring 423 is sleeved on the outer wall of the supporting rod 421, the front side of the spring 423 is fixedly connected with the front side inner wall of the cylindrical cover 413, the rear side of the spring 423 is fixedly connected with the circular plate 422, and a locking piece is arranged on the circular plate 422. The spring 423 is located in the cylindrical cover 413, the locking piece comprises a locking block 424 fixedly connected to the side of the circular plate 422 away from the spring 423, a plurality of locking grooves 425 are formed in the front side of the annular block 311, the locking block 424 is matched with the locking grooves 425, and a handle 426 is fixedly connected to the front side of the supporting rod 421. By arranging the locking part 4, the displacement of the driving ring 313 due to external force is avoided, the operation stability of the overall structure is ensured, and the risk of structure loosening failure is reduced.

[0022] In use, the electric wire is inserted into the terminal box 111 through the terminal hole 112, and the fixing screw 213 is rotated. Since the fixing screw 213 is threadedly connected with the rectangular plate 212, the fixing screw 213 is rotated on the rectangular plate 212 and moves downward. In this process, the fixing screw 213 drives the annular plate 215 to move downward through the telescopic rod 214. When the annular plate 215 contacts the top of the rectangular plate 212, the fixing screw 213 is continuously rotated, and the fixing screw 213 drives the annular plate 215 to rotate through the telescopic rod 214. Under the action of the cooperation between the spherical groove 221 and the ball 222, the friction between the annular plate 215 and the terminal hole 112 is reduced. Until the fixing screw 213 is not rotated, the fixing screw 213 is extruded to the telescopic rod 214 and the spring 216 to deform, so that the spring 216 continuously generates an axial elastic force, and the elastic force acts on the fixing screw 213 to maintain a stable axial pre-tightening force between the fixing screw 213 and the rectangular plate 212. The pre-tightening force can significantly increase the friction torque of the threaded connection between the fixing screw 213 and the rectangular plate 212, thereby effectively preventing the fixing screw 213 from being self-rotated and loosened due to vibration and increasing the friction. In this process, the fixing screw 213 is extruded to the electric wire and fixed; Then the handle 426 is pulled. Since the handle 426 is fixedly connected with the supporting rod 421, the handle 426 drives the supporting rod 421 to move on the cylindrical cover 413. Under the action of the fixed connection between the circular plate 422 and the locking block 424, the supporting rod 421 drives the locking block 424 to move through the circular plate 422 and away from the corresponding locking groove 425. In this process, the circular plate 422 pushes the spring 423 to extrude, so that the spring 423 is deformed and generates an elastic force, thereby rotating the L-shaped plate 412; Since the L-shaped plate 412 is fixedly connected with the driving ring 313, the L-shaped plate 412 drives the driving ring 313 to slide in the annular sliding groove 312. At this time, the driving ring 313 drives the arc-shaped hole 314 to move. Under the action of the cooperation between the arc-shaped hole 314 and the limiting sliding groove 321, the driving ring 313 drives the connecting rod 324 to move through the arc surface. Since the connecting rod 324 is fixedly connected with the sliding rod 322, the connecting rod 324 drives the sliding rod 322 to move in the limiting sliding groove 321 and close to the electric wire. At this time, the sliding rod 322 drives the anti-skid insulating pad 323 to move, thereby fixing the electric wire and preventing the electric wire from loosening. Then the handle 426 is loosened. At this time, the extrusion force of the spring 423 disappears, and the elastic force is released. The elastic force acts on the circular plate 422, the circular plate 422 pushes the locking block 424 to reset and is clamped into the corresponding locking groove 425. Under the action of the cooperation between the locking block 424 and the locking groove 425, the locking block 424 is clamped into the locking groove 425, thereby limiting the position of the L-shaped plate 412 and fixing the position of the driving ring 313.

[0023] The preferred embodiments of the application disclosed above are only to facilitate the elucidation of the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments described. Obviously, many modifications and variations can be made in light of the teachings above. The description is chosen and described in order to best explain the principles of the application and its practical application to thereby enable others skilled in the art to best utilize the application and get the best results from the application. The application is only limited by the claims and their full scope and equivalents.

Claims

1. A combined terminal block, comprising a junction box (111) and a plurality of wiring holes (112) opened on the front side of the junction box (111), characterized in that, Also includes: A fixing part (2) is provided in a plurality of such fixing parts (2), and all such fixing parts (2) are installed on the junction box (111); Anti-detachment part (3), there are several anti-detachment parts (3), and several anti-detachment parts (3) are respectively arranged on the front side of several wiring holes (112); Locking part (4), there are a plurality of locking parts (4), and the plurality of locking parts (4) are respectively disposed on a plurality of anti-detachment parts (3); The fixing part (2) includes a fixing component (21), which is mounted on the junction box (111); as well as A ball bearing assembly (22) is disposed on a fixed assembly (21); The fixing component (21) includes a rectangular hole (211) opened on the top of the junction box (111). A rectangular plate (212) is fixedly connected in the rectangular hole (211). A fixing screw (213) passes through the rectangular plate (212). The fixing screw (213) is threadedly connected to the rectangular plate (212). A plurality of telescopic rods (214) are fixedly connected to the top inner wall of the fixing screw (213). A ring plate (215) is fixedly connected to the bottom of the plurality of telescopic rods (214). A spring (216) is sleeved on the outer wall of the plurality of telescopic rods (214). The top of the plurality of springs (216) is fixedly connected to the fixing screw (213). The bottom of the plurality of springs (216) is fixedly connected to the ring plate (215).

2. A combined terminal block according to claim 1, characterized in that, The anti-detachment part (3) includes a drive assembly (31) mounted on the junction box (111); and Anti-detachment component (32), which is disposed on drive component (31).

3. A combined terminal block according to claim 1, characterized in that, The locking part (4) includes a support assembly (41) disposed on the drive assembly (31); and Locking component (42) is disposed on support component (41).

4. A combined terminal block according to claim 1, characterized in that, The ball assembly (22) includes a plurality of ball grooves (221) formed at the bottom of the annular plate (215), and each of the plurality of ball grooves (221) is provided with a ball (222). Among them, several balls (222) are respectively connected to several spherical grooves (221) in a rolling manner.

5. A combined terminal block according to claim 2, characterized in that, The drive assembly (31) includes an annular block (311) fixedly connected to the front side of the junction box (111). An annular groove (312) is provided in the annular block (311). A drive ring (313) is slidably connected in the annular groove (312). A plurality of arc-shaped holes (314) are provided on the drive ring (313). Among them, the annular block (311) corresponds to the wiring hole (112), and the drive ring (313) and the annular groove (312) are both T-shaped.

6. A combined terminal block according to claim 2, characterized in that, The anti-detachment component (32) includes a plurality of limiting slide grooves (321) opened in an annular slide groove (312), and a slide rod (322) is slidably connected in each of the plurality of limiting slide grooves (321). An anti-slip insulating pad (323) is fixedly connected to one side of each of the plurality of slide rods (322) that are close to each other. A connector is provided on the plurality of slide rods (322). Among them, there are four limiting slides (321), which are arranged in a circular array.

7. A combined terminal block according to claim 3, characterized in that, The support assembly (41) includes a groove (411) opened on the front side of the annular block (311), an L-shaped plate (412) is slidably connected in the groove (411), the L-shaped plate (412) is fixedly connected to the drive ring (313), and a cylindrical cover (413) is fixedly connected to the inner wall of the L-shaped plate (412). The L-shaped plate (412) has a circular hole, and the sliding groove (411) is connected to the annular sliding groove (312).

8. A combined terminal block according to claim 3, characterized in that, The locking assembly (42) includes a support rod (421) that passes through the cylindrical cover (413). The support rod (421) is slidably connected to the cylindrical cover (413). A circular plate (422) is fixedly connected to the rear side of the support rod (421). The circular plate (422) is slidably connected to the inner wall of the cylindrical cover (413). A second spring (423) is sleeved on the outer wall of the support rod (421). The front side of the second spring (423) is fixedly connected to the front inner wall of the cylindrical cover (413). The rear side of the second spring (423) is fixedly connected to the circular plate (422). A locking element is provided on the circular plate (422). Among them, spring 2 (423) is located inside the cylindrical cover (413).

9. A combined terminal block according to claim 6, characterized in that, The connector includes connecting rods (324) that are fixedly connected to the front side of a plurality of sliding rods (322), and the plurality of connecting rods (324) are respectively located in a plurality of arc-shaped holes (314); There are four connecting rods (324) arranged in a circular array, and several connecting rods (324) respectively contact several arc-shaped holes (314).

10. A combined terminal block according to claim 8, characterized in that, The locking component includes a locking block (424) fixedly connected to the side of the circular plate (422) away from the second spring (423). The front side of the annular block (311) is provided with a plurality of locking grooves (425). The locking block (424) is adapted to the plurality of locking grooves (425). The front side of the support rod (421) is fixedly connected with a handle (426).

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