CN219833680U

CN219833680U - Junction box

Info

Publication number: CN219833680U
Application number: CN202320609087.7U
Authority: CN
Inventors: 万兴华; 包璋光; 张灵波; 张华龙
Original assignee: Ligang Electromechanical Equipment Co ltd
Current assignee: Ligang Electromechanical Equipment Co ltd
Priority date: 2023-03-25
Filing date: 2023-03-25
Publication date: 2023-10-13
Anticipated expiration: 2033-03-25

Abstract

The utility model discloses a junction box, which comprises a box body and a box cover movably connected with the box body; the inner side wall of the box body is also provided with a supporting table, and the supporting table is connected with a crane arm of the crane after penetrating through the box cover and the box body through a fastener so as to fix the box cover on the box body and fix the box body on the crane arm; in addition, a buffer mechanism is also arranged on the box body; the buffer mechanism comprises a base fixedly connected with the box body, a guide rod is arranged on the base, and a sliding block is arranged on the guide rod; a spring is arranged between the sliding block and the base; the middle parts of the base and the sliding block are provided with holders; the passing lead is fixed through the base and the clamp holder on the slide block; when the external lead is pulled, the sliding block is driven to slide on the guide rod, and when the traction force disappears, the spring drives the sliding block to reset, so that the problem that the lead is pulled apart due to the pulling is solved.

Description

Junction box

Technical Field

The utility model relates to the technical field of electrical accessories, in particular to a junction box.

Background

A plurality of wire harnesses are stored at the position of a lifting hook of the crane so as to supply power and transmit signals, and the wire harnesses are distributed at the lifting hook in a disordered manner. The wire harness is easy to wear and break due to the influence of equipment vibration, and the wire harness is poor in exposed waterproof performance, so that the conditions of short circuit, open circuit, unsmooth communication and the like are easy to generate.

Although the chinese patent literature of CN217508193U gives a solution, that is, the junction box is fixed at the hook through a bolt, then the plug is inserted on the incoming connector and the outgoing connector respectively, the wire harness is sealed and fixed in the sealant, which not only can effectively prevent water, but also can prevent the hook from vibrating to cause wear and drop of the wire harness, thereby avoiding the situations of short circuit, open circuit, unsmooth communication, etc.

However, the above-mentioned problems still exist, for example, when the hanging hook swings in the hanging arm or when the hanging hook swings by itself, the wire on the junction box can be pulled, and the wire can be broken or directly pulled apart over time.

Disclosure of Invention

The present utility model is directed to a junction box, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a junction box, which comprises a box body and a box cover movably connected with the box body; a supporting table is further arranged on the inner side wall of the box body, and a sealing gasket is further arranged on the supporting table; the box cover is connected with a horn of the crane after passing through the box cover and the box body through the fastener, so as to fix the box cover on the box body and fix the box body on the horn; the box body is also provided with a buffer mechanism; the buffer mechanism comprises a base fixedly connected with the box body, and a guide rod is arranged on the base; the guide rod is provided with a sliding block, a spring is arranged between the sliding block and the base, and the spring is sleeved on the guide rod; the base with the middle part of slider all is equipped with the holder, through the base with the holder on the slider is fixed the wire that will pass through.

As a preferable technical scheme of the utility model: the base and the middle part of the sliding block are respectively provided with an installation groove for installing the clamp holder.

As a preferable technical scheme of the utility model: the clamp holder comprises a first clamping plate and a second clamping plate which are positioned in the mounting groove, and the clamp holder is in threaded fit with an internal threaded hole formed in the first clamping plate and the second clamping plate after penetrating from one side of the mounting groove through a screw rod.

As a preferable technical scheme of the utility model: the sliding block and the base are respectively provided with a slot for facilitating the insertion of the screw rod.

As a preferable technical scheme of the utility model: and silica gel pads are arranged on the opposite surfaces of the first clamping plate and the second clamping plate.

As a preferable technical scheme of the utility model: the number of the buffer mechanisms is two, one buffer mechanism is arranged at the wire inlet of the box body, and the other buffer mechanism is arranged at the wire outlet of the box body.

As a preferable technical scheme of the utility model: the number of the guide rods is two, and the two guide rods are symmetrically arranged on the base.

By adopting the technical scheme, the utility model has the beneficial effects that: the passing lead is fixed through the base and the clamp holder on the slide block; when the external lead is pulled, the sliding block is driven to slide on the guide rod so as to buffer the lead from being pulled; when the traction force disappears, the spring drives the sliding block to reset so as to drive the lead to reset, and further the problem that the lead is pulled apart due to the traction is solved.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is an exploded view of the main structure of the present utility model;

FIG. 3 is a schematic diagram of the main structure of the buffering mechanism of the present utility model;

FIG. 4 is a schematic view of an exploded structure of the slider and the clamper of the present utility model.

In the figure: 1. a case body; 2. a box cover; 3. a buffer mechanism; 30. a base; 31. a spring; 32. a slide block; 33. a holder; 34. a guide rod; 35. a slot; 36. a mounting groove; 37. a first clamping plate; 38. an internal threaded hole; 39. a screw; 310. a second clamping plate; 4. a fastener; 5. and a support table.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "upper surface", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the junction box comprises a box body 1 and a box cover 2 movably connected with the box body 1; a supporting table 5 is further arranged on the inner side wall of the box body 1, and a sealing gasket is further arranged on the supporting table 5; the box cover 2 is fixed on the box body 1 and the box body 1 is fixed on a horn through the fastening piece 4 which penetrates through the box cover 2 and the box body 1 and then is connected with the horn of the crane; furthermore, the sealing gasket is extruded by the box cover 2, so that the sealing of the joint of the box cover 2 and the box body 1 is realized, and water vapor is prevented from entering the box body 1;

the box body 1 is also provided with a buffer mechanism 3; the buffer mechanism 3 comprises a base 30 fixedly connected with the box body 1, and a guide rod 34 is arranged on the base 30; the guide rod 34 is provided with a sliding block 32, a spring 31 is arranged between the sliding block 32 and the base 30, and the spring 31 is sleeved on the guide rod 34; the middle parts of the base 30 and the sliding block 32 are respectively provided with a clamp 33, and the passing wires are fixed through the base 30 and the clamp 33 on the sliding block 32.

The passing wire is fixed by a holder 33 on the base 30 and the slide 32; when the external lead is pulled, the sliding block 32 is driven to slide on the guide rod 34 so as to buffer the lead from being pulled; when the traction force disappears, the spring 31 drives the sliding block 32 to reset so as to drive the lead to reset, and further the problem that the lead is pulled apart due to the traction is solved. It should be noted that the length of the wire between the slider 32 and the base 30 is greater than the maximum spacing between the base 30 and the slider 32.

Further, since the middle parts of the base 30 and the slider 32 are provided with the mounting grooves 36 for mounting the clamp 33, the clamp 33 is convenient to mount, and the clamp 33 can clamp the passing wire so that the wire drives the slider 32 to slide. While also facilitating the installation and removal of the holder 33.

Further, since the clamp 33 includes the first clamping plate 37 and the second clamping plate 310 located in the mounting groove 36, and is screwed with the internal threaded holes 38 formed on the first clamping plate 37 and the second clamping plate 310 after penetrating from one side of the mounting groove 36 by the screw 39, the two clamping plates can be urged to move toward each other or away from each other by the screw 39, so as to clamp the wire and release the wire.

Specifically, as the screw 39 is rotated, a hand or other tool is pressed against the mounting groove 36 to prevent the two clamping plates from following the axial rotation of the screw 39. At this time, the first clamping plate 37 and the second clamping plate 310 are driven to move in opposite directions by the rotation of the screw 39, so that the wire is clamped, and conversely, the screw 39 rotates in opposite directions, so that the wire is loosened.

In order to improve the stability of the screw 39 during rotation, the sliding block 32 and the base 30 are provided with slots 35 for facilitating insertion of the screw 39, and when the screw 39 passes through the two clamping plates, the other end of the screw is positioned in the slots 35, and the slots 35 on the mounting groove 36 can support the screw 39 to prevent the screw 39 from swinging up and down to influence the normal movement of the two clamping plates; in addition, the mounting slot 36 is rectangular in cross-section, and two clamping plates slide within the rectangular mounting slot 36, thereby facilitating the passage of multiple conductors through the mounting slot 36.

Since the opposite surfaces of the first clamping plate 37 and the second clamping plate 310 are respectively provided with a silica gel pad, the clamping plates can be prevented from damaging the outer skin of the wire, and meanwhile, the clamp 33 can be ensured not to affect the wire when clamping each time by replacing the silica gel pad.

On the basis of the scheme, the number of the buffer mechanisms 3 is two, one buffer mechanism 3 is arranged at the wire inlet of the box body 1, and the other buffer mechanism 3 is arranged at the wire outlet of the box body 1, so that the wire inlet part entering the junction box and the wire outlet part from the junction box have the anti-involvement capability.

Further, since the number of the guide rods 34 is two, and the two guide rods 34 are symmetrically disposed on the base 30, the sliding block 32 can slide reliably, and the sliding block 32 can be guided to slide directionally.

In summary, the buffer mechanism 3 not only can fix the wires, but also can automatically adapt to the length change of the wires, so as to avoid the problem that the wires are excessively pulled to cause tearing or skin breaking. In addition, the buffer mechanism 3 can buffer the vibration of the suspension arm to the lead wire during working.

The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.

Claims

1. A junction box, characterized in that: comprises a box body (1) and a box cover (2) movably connected with the box body (1);

a supporting table (5) is further arranged on the inner side wall of the box body (1), and a sealing gasket is further arranged on the supporting table (5);

the box cover (2) is fixed on the box body (1) and the box body (1) is fixed on a horn of the crane by the aid of the fasteners (4) penetrating through the box cover (2) and the box body (1);

a buffer mechanism (3) is also arranged on the box body (1); the buffer mechanism (3) comprises a base (30) fixedly connected with the box body (1), and a guide rod (34) is arranged on the base (30);

a slide block (32) is arranged on the guide rod (34), a spring (31) is arranged between the slide block (32) and the base (30), and the spring (31) is sleeved on the guide rod (34);

the base (30) and the middle part of the sliding block (32) are respectively provided with a clamp holder (33), and the passing wires are fixed through the base (30) and the clamp holders (33) on the sliding block (32).

2. A junction box according to claim 1, wherein: the base (30) and the middle part of the sliding block (32) are respectively provided with a mounting groove (36) for mounting the clamp holder (33).

3. A junction box according to claim 2, wherein: the clamp holder (33) comprises a first clamping plate (37) and a second clamping plate (310) which are positioned in the mounting groove (36), and the clamp holder is in threaded fit with internal threaded holes (38) formed in the first clamping plate (37) and the second clamping plate (310) after penetrating from one side of the mounting groove (36) through a screw rod (39).

4. A junction box according to claim 3, wherein: the sliding block (32) and the base (30) are respectively provided with a slot (35) which is convenient for the screw (39) to be inserted.

5. A junction box according to claim 4, wherein: silica gel pads are arranged on the opposite surfaces of the first clamping plate (37) and the second clamping plate (310).

6. A junction box according to any one of claims 1-5, characterized in that: the number of the buffer mechanisms (3) is two, one buffer mechanism (3) is arranged at the wire inlet of the box body (1), and the other buffer mechanism (3) is arranged at the wire outlet of the box body (1).

7. The junction box of claim 6, wherein: the number of the guide rods (34) is two, and the two guide rods (34) are symmetrically arranged on the base (30).