CN219327441U

CN219327441U - Spacing hinge and regulator cubicle

Info

Publication number: CN219327441U
Application number: CN202320115086.7U
Authority: CN
Inventors: 刘家奇; 袁新辉; 李超; 张浩宇; 赵爽
Original assignee: CRRC Zhuzhou Locomotive Co Ltd
Current assignee: CRRC Zhuzhou Locomotive Co Ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-07-11
Anticipated expiration: 2033-01-17

Abstract

The utility model provides a limiting hinge and an electrical cabinet. The limiting hinge comprises a hinge seat, a loose leaf and a limiting block, the connecting part is rotationally connected with the hinge seat, at least one end of the hinge seat is provided with a jack, and the limiting block is inserted into the jack; the end part of the connecting part, which is close to the limiting block, is provided with a first limiting surface and a second limiting surface; the limiting block is provided with a third limiting surface and a fourth limiting surface, and the hinge rotates relative to the hinge seat to form a first position and a second position: when the first position is set, the first limiting surface is attached to the fourth limiting surface; when the first limiting surface is at the first position, the first limiting surface is attached to the second limiting surface; or when in the second position, the second limiting surface is attached to the hinge seat. The utility model can limit the opening and closing angles and avoid the collision between the cabinet door installed on the installation part and other parts.

Description

Spacing hinge and regulator cubicle

Technical Field

The utility model relates to the technical field of electrical cabinets, in particular to a limiting hinge and an electrical cabinet, which are applied to rail transit vehicles.

Background

An electrical operation panel is often arranged in an existing rail transit vehicle electrical cabinet, and a miniature circuit breaker, a knob button switch and various instrument lamps are arranged on the panel. When the existing electrical cabinet is used, the opening angle or the closing angle of the cabinet door is not limited, and the cabinet door generally falls freely through dead weight when being opened, so that the cabinet door is easy to collide with the built-in cabinet; when the cabinet door is closed, the cabinet door collides with all electrical equipment in the cabinet due to overlarge closing angle, so that the damage is caused.

In addition, when the electrical cabinet is assembled, enough operation space is needed, for example, the opening angle of the cabinet door is too small, the operation space in the cabinet is too narrow, so that the assembly is difficult, and the operation is inconvenient.

The prior limiting hinge is a hinge limiter and a hinge disclosed in the prior patent publication No. CN108442836A, and comprises a hinge, a fixed page plate, a movable page plate and a hinge limiter. The hinge limiter is fixed on the hinge and is an arc plate, and the hinge limiter abuts against the movable page plate to limit. Because the radian plate has a certain curvature radius and is coated outside the hinge, the opening angle of the limiting hinge is limited, and if the limiting hinge is applied to an electric cabinet, a larger working space cannot be provided for operators.

Disclosure of Invention

The utility model aims to provide a limiting hinge and an electrical cabinet, which can realize the limitation of an opening and closing angle.

The technical scheme of the utility model is as follows: the limiting hinge comprises a hinge seat, a loose leaf and a limiting block, wherein the loose leaf comprises a connecting part and a mounting part connected to the connecting part, the connecting part is rotationally connected with the hinge seat, at least one end of the hinge seat is provided with a jack, and the limiting block is inserted into the jack; the end part of the connecting part, which is close to the limiting block, is provided with a first limiting surface and a second limiting surface; the limiting block is provided with a third limiting surface and a fourth limiting surface, and the hinge rotates relative to the hinge seat to form a first position and a second position: when the first position is set, the first limiting surface is attached to the fourth limiting surface; when the first limiting surface is at the first position, the first limiting surface is attached to the second limiting surface; or when in the second position, the second limiting surface is attached to the hinge seat.

In the scheme, through corresponding setting of the limiting surface, effective limiting at a first position (when the cabinet door is closed) and a second position (when the cabinet door is opened) is better realized, so that enough operation space is ensured, and collision damage of other parts caused by opening or closing of the cabinet door is avoided.

Preferably, the stop block is provided with a stop groove, a rotation angle surface is formed in the stop groove along the axial direction of the stop block in a recessed mode, a third end surface and a third limiting surface are formed in the stop groove in a recessed mode along the radial direction, and two adjacent side edges of the rotation angle surface are connected with the third end surface and the third limiting surface respectively.

Preferably, the upper end of the limiting block is provided with a concave cambered surface, and the third limiting surface and the fourth limiting surface are respectively arranged at two ends of the concave cambered surface; the connecting part is provided with an arc surface matched with the concave arc surface, and the concave arc surface is in clearance fit with the arc surface.

Preferably, the limiting hinge further comprises a positioning piece, and the positioning piece penetrates through the hinge seat and is abutted with the limiting block.

Preferably, the end face of the limiting block is provided with a positioning hole which is not communicated, and the positioning piece stretches into the positioning hole and is abutted to the inner bottom face of the positioning hole.

Preferably, a seventh end face is arranged on the jack, and a fourth end face is arranged on the limiting block; the locating piece is a bolt in threaded connection with the hinge seat, and the fourth end face and the seventh end face are attached to each other by the locating piece.

Preferably, the terminal end of jack extension forms the fifth terminal surface, be equipped with the sixth terminal surface on the stopper, the stopper cartridge in the jack, the sixth terminal surface is laminated with the fifth terminal surface backstop.

The utility model also provides an electrical cabinet, which comprises a cabinet body, a cabinet door and the limiting hinge, wherein a hinge seat of the limiting hinge is connected with the cabinet body, and the mounting part is connected with the cabinet door.

Compared with the related art, the utility model has the beneficial effects that:

1. the limiting hinge is additionally provided with the limiting block, and the loose leaves are opened and attached to the limiting block so as to limit the opening and closing angles, avoid collision between the cabinet door installed on the installation part and other parts, and provide a larger operation space for operators, so that the use is more convenient;

2. on one hand, the limiting block with different rotation angle faces is replaced according to the requirement, so that the limitation of different opening angles of the cabinet door is realized; on the other hand, the opening angle of the cabinet door is increased and exceeds 180 degrees, the cabinet door can be realized by not using a limiting block, and the cabinet door can be disassembled randomly according to the needs, so that the cabinet door is more flexible to use.

Drawings

FIG. 1 is an exploded view of a spacing hinge of the present utility model;

FIG. 2 is a schematic view of a hinge base;

FIG. 3 is a schematic view of a hinge;

fig. 4 is a schematic perspective view of a limiting hinge provided in the present utility model in a first position;

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a perspective view of the hinge base in a second position of the check hinge according to the present utility model;

FIG. 7 is a schematic view of a structure of a stopper block;

FIG. 8 is a schematic view of the mounting of the stop block and the hinge base;

FIG. 9 is a table of bit block multi-specification correspondence;

FIG. 10 is a schematic diagram of the electrical cabinet open;

fig. 11 is a schematic diagram of the electrical cabinet when closed.

In the accompanying drawings: 1. a rotating shaft; 2. a hinge base; 21. a jack; 22. a threaded hole; 23. a fifth end face; 24. a bottom plate; 25. a support lug; 26. a cavity; 27. a mounting hole; 28. a seventh end face; 3. a loose leaf; 31. an arc surface; 32. a first limiting surface; 33. the second limiting surface; 34. a first end face; 35. a connection part; 36. a mounting part; 37. a second end face; 4. a positioning piece; 5. a limiting block; 51. a stop groove; 511. a third limiting surface; 512. a rotation angle surface; 513. a third end face; 52. positioning holes; 53. a fourth end face; 54. a sixth end face; 55. a concave cambered surface; 56. a fourth limiting surface; 6. a cabinet body; 7. and a cabinet door.

Detailed Description

The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.

As shown in fig. 1, the limiting hinge provided in this embodiment includes a rotation shaft 1, a hinge base 2, a loose leaf 3, a positioning member 4, and a limiting block 5.

As shown in fig. 2, the hinge base 2 includes an insertion hole 21, a threaded hole 22, a fifth end surface 23, a bottom plate 24, a support lug 25, a cavity 26, a mounting hole 27, and a seventh end surface 28. The lugs 25 are vertically connected to two ends of the bottom plate 24, so that cavities 26 are formed between the lugs 25 at the two ends. The lower end of the lug 25 is provided with the insertion hole 21 extending therethrough in the direction of the bottom plate 24, and the fifth end surface 23 is formed at the terminal end of the insertion hole 21 extending. The shape of the insertion hole 21 is matched with the shape of the limiting block 5. The insertion hole 21 may be disposed at one end of the hinge base 2, and form a single-point limit with one of the limiting blocks 5 to the hinge 3, or may be disposed at both ends to form a two-point limit. The threaded hole 22 is formed in the side wall of the plug hole 21 by penetrating through the supporting lug 25, and the threaded hole 22 is communicated with the plug hole 21. The inner wall surface of the insertion hole 21 away from the threaded hole 22 is the seventh end surface 28. The upper end of the support lug 25 is provided with a mounting hole 27 for mounting the rotating shaft 1.

As shown in fig. 3, the hinge 3 includes an arc surface 31, a first limiting surface 32, a second limiting surface 33, a first end surface 34, a connecting portion 35, a mounting portion 36, and a second end surface 37. The connecting portion 35 is a sleeve structure, as shown in fig. 1, 2 and 6, the connecting portion 35 is located in the cavity 26 of the hinge base 2, and the inner hole of the sleeve is aligned with the mounting hole 27. The rotation shaft 1 is inserted into the hinge base 2 and the lugs 25, so that the loose leaf 3 can rotate relative to the hinge base 2 and form a first position (shown in fig. 4) and a second position (shown in fig. 6).

The end of the connecting portion 35 is formed with a first limiting surface 32 and a second limiting surface 33 along an axial direction. The first limiting surface 32 and the second limiting surface 33 are connected with the circular arc surface 31 and the first end surface 34, the circular arc surface 31 is parallel to the outer arc surface of the connecting portion 35, and the first end surface 34 is parallel to the end surface of the support lug 25.

The mounting portion 36 is for mounting with a cabinet door of an electrical cabinet, is connected with the connecting portion 35, and forms the second end surface 37 at the connected bottom.

As shown in fig. 4 to 6, the limiting block 5 is provided with a third limiting surface 511 and a fourth limiting surface 56. In the first position, the first stopper surface 32 is in contact with the fourth stopper surface 56, and is in an open state (as shown in fig. 4 and 10). In the second position, the second stop surface 33 is in contact with the third stop surface 511, and is in a closed state (as shown in fig. 6 and 11). Likewise, the stopper 5 can be detached according to the requirement of the opening angle, so that the second limiting surface 33 is directly attached to the bottom plate 24 of the hinge base 2, and the opening and closing of 180 degrees can be realized.

In order to realize the adjustment of the opening angle of the cabinet door (mounted on the mounting portion 36), the cabinet door can be realized by replacing the limiting block 5, specifically: as shown in fig. 7, the limiting block 5 includes a stop groove 51, a positioning hole 52, a fourth end surface 53, a sixth end surface 54, a concave arc surface 55, and a fourth limiting surface 56. The stopper 5 of various specifications only differs in the structure of the stopper groove 51.

The stop groove 51 is formed with a rotation angle surface 512 along the axial direction of the stop block 5, a third end surface 513 and the third stop surface 511 are formed along the radial direction, and two adjacent sides of the rotation angle surface 512 are respectively connected with the third end surface 513 and the third stop surface 511. In the second position, the second end surface 37 is in contact with the third end surface 513.

The upper end of the limiting block 5 is provided with a concave cambered surface 55, and the third limiting surface 511 and the fourth limiting surface 56 are respectively arranged at two ends of the concave cambered surface 55. The connecting portion 35 is provided with an arc surface 31 adapted to the concave arc surface 55, and the concave arc surface 55 is in clearance fit with the arc surface 31, so that friction is prevented.

As shown in fig. 8, the stopper 5 is inserted into the insertion hole 21, and the sixth end surface 54 is abutted against the fifth end surface 23, so that the distance of the stopper groove 51 of the stopper 5 exposed in the cavity 26 is appropriate. The locating hole 52 is now aligned with the threaded hole 22. The positioning piece 4 is a screw, is in threaded connection with the threaded hole 22, extends into the positioning hole 52 and contacts with the inner bottom surface of the positioning hole 52, so as to prevent the limiting block 5 from axially moving in a series. Thus, the fourth end surface 53 of the stopper 5 is bonded to the seventh end surface 28, and the stopper 5 is prevented from rotating in the hinge base 2 when being forced. And a gap exists between the first end surface 34 and the sixth end surface 54 after installation, so that friction is prevented.

The rotation angle surface 512 of the stop groove 51 on the stop block 5 can be designed into various specifications, as shown in fig. 9. The opening and closing of the hinge 3 at different angles are realized by replacing the limiting blocks 5 with different rotation angle faces 512.

If it is required to achieve 180 ° of the opening angle through the stopper 5 and more than 180 ° of the limitation, the third end surface 513 may be inclined downward according to the structural change in the above table, so that the angle between the third end surface 513 and the third stopper surface 511 increases, and thus the area of the rotation angle surface 512 increases.

In addition, the positioning member 4 can be loosened, and the limiting block 5 is detached, so that the 180-degree opening and closing limitation of the mounting part 36 is realized through the contact of the second end surface 37 and the upper end surface of the bottom plate 24.

As shown in fig. 10 and 11, the utility model further provides an electrical cabinet, which comprises a cabinet body 6, a cabinet door 7 and the limiting hinge, wherein a hinge seat 2 of the limiting hinge is connected with the cabinet body 6, and a mounting part 36 of the loose-leaf 3 is connected with the cabinet door 7.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The limiting hinge comprises a hinge seat (2) and a loose leaf (3), wherein the loose leaf (3) comprises a connecting part (35) and a mounting part (36) connected to the connecting part (35), and the connecting part (35) is rotationally connected with the hinge seat (2), and the limiting hinge is characterized by further comprising a limiting block (5), at least one end of the hinge seat (2) is provided with a jack (21), and the limiting block (5) is detachably inserted into the jack (21); the end part of the connecting part (35) close to the limiting block (5) is provided with a first limiting surface (32) and a second limiting surface (33); the limiting block (5) is provided with a third limiting surface (511) and a fourth limiting surface (56), and the hinge (3) rotates relative to the hinge base (2) to form a first position and a second position: in the first position, the first limiting surface (32) is attached to the fourth limiting surface (56); in the second position, the second limiting surface (33) is attached to the third limiting surface (511); or in the second position, the second limiting surface (33) is attached to the hinge base (2).

2. The limit hinge according to claim 1, wherein the limit block (5) is provided with a stop groove (51), the stop groove (51) is recessed along an axial direction of the limit block (5) to form a rotation angle surface (512), a third end surface (513) and the third limit surface (511) are recessed along a radial direction, and two adjacent side edges of the rotation angle surface (512) are respectively connected with the third end surface (513) and the third limit surface (511).

3. The limit hinge according to claim 1, wherein the upper end of the limit block (5) is provided with a concave arc surface (55), and the third limit surface (511) and the fourth limit surface (56) are respectively arranged at two ends of the concave arc surface (55); the connecting part (35) is provided with an arc surface (31) matched with the concave arc surface (55), and the concave arc surface (55) is in clearance fit with the arc surface (31).

4. The limit hinge according to claim 1, further comprising a positioning element (4), said positioning element (4) penetrating through the hinge base (2) and abutting against the limit block (5).

5. The limit hinge according to claim 4, wherein the end face of the limit block (5) is provided with a positioning hole (52) which is not penetrated, and the positioning piece (4) extends into the positioning hole (52) and is abutted with the inner bottom surface of the positioning hole (52).

6. The limit hinge according to claim 4, characterized in that a seventh end surface (28) is provided on the insertion hole (21), and a fourth end surface (53) is provided on the limit block (5); the positioning piece (4) is a bolt in threaded connection with the hinge seat (2), and the fourth end face (53) and the seventh end face (28) are attached to each other by the positioning piece (4).

7. The limit hinge according to claim 1, wherein a fifth end surface (23) is formed at a terminal end of the extension of the insertion hole (21), a sixth end surface (54) is provided on the limit block (5), and when the limit block (5) is inserted into the insertion hole (21), the sixth end surface (54) is in stop fit with the fifth end surface (23).

8. An electrical cabinet comprising a cabinet body and a cabinet door, and further comprising a limit hinge according to any one of claims 1 to 7, wherein a hinge base (2) of the limit hinge is connected to the cabinet body, and the mounting portion (36) is connected to the cabinet door.