CN217134960U

CN217134960U - Mechanical self-locking mechanism of distribution box

Info

Publication number: CN217134960U
Application number: CN202122918551.4U
Authority: CN
Inventors: 袁玮; 张博; 张龙; 王耀; 曹海静; 章元爱
Original assignee: China Railway Southwest Research Institute Co Ltd
Current assignee: China Railway Southwest Research Institute Co Ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-08-05
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a mechanical type self-locking mechanism of block terminal relates to block terminal technical field, including the switch board body and chamber door, the inner chamber of the switch board body is fixed with the inside casing panel, chamber door and switch board body sliding connection, chamber door are on a parallel with the inside casing panel, run through on the chamber door and have seted up the connecting hole, are provided with the elasticity locating part on the inside casing panel, and the elasticity locating part can stretch into and be used for restricting the chamber door in the connecting hole and slide. The sliding of the box door is limited by the matching of the elastic limiting part and the connecting hole, the box door can slide only by compressing the elastic limiting part to separate the elastic limiting part from the connecting hole when the box door is unlocked, so that the quick unlocking of the distribution box is realized, the box door can be manually opened without unlocking tools such as keys, the unlocking process of the indoor distribution box is simple, the distribution box can be maintained for the first time, and the problem that the maintenance efficiency is influenced by forgetting to take the unlocking tools is avoided.

Description

Mechanical self-locking mechanism of distribution box

Technical Field

The utility model relates to a block terminal technical field specifically is a mechanical type self-locking mechanism of block terminal.

Background

The distribution box is a mass parameter on data, generally forms a low-voltage forest according to electrical wiring, and requires that a switch device, a measuring instrument, a protective electrical appliance and an auxiliary device are assembled in a closed or semi-closed metal cabinet or on a screen to form the low-voltage distribution box. The circuit can be switched on or switched off by means of a manual or automatic switch in normal operation, and the distribution box has the characteristics of small volume, simplicity and convenience in installation, special technical performance, fixed position, unique configuration function, no limitation of places, universal application, stability and reliability in operation, high space utilization rate, small occupied area and environmental protection effect; the chamber door auto-lock of current block terminal adopts two kinds of modes, one of them, the mechanical lock that the adoption needs to cooperate the key to open, it is two, the electronic lock that the adoption needs to punch the card to open, above-mentioned two kinds of auto-lock modes are applicable to outdoor block terminal, be used for preventing that non-staff from opening the block terminal, because the block terminal has and is used for outdoor and indoor, and indoor block terminal does not basically have the condition that non-staff opened the block terminal, adopt current auto-lock mode to make the process of unblanking become complicated, there is the staff to forget the condition of taking the key or response card and can't open the block terminal chamber door, when leading to emergency, unable the very first time overhauls the block terminal, thereby influence the maintenance efficiency of block terminal.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a mechanical type self-locking mechanism of block terminal, do not need other instruments can manually open the chamber door, make the process of unblanking of indoor block terminal become simple, but the very first time overhauls the block terminal, avoids influencing the problem of maintenance efficiency because of forgetting to take the unlocking means.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a mechanical type self-locking mechanism of block terminal, includes the switch board body and chamber door, the inner chamber of the switch board body is fixed with the inside casing panel, the chamber door with switch board body sliding connection, the chamber door is on a parallel with the inside casing panel, run through on the chamber door and seted up the connecting hole, be provided with the elasticity locating part on the inside casing panel, the elasticity locating part can stretch into be used for restricting the chamber door in the connecting hole and slide.

Furthermore, the elastic limiting part comprises an elastic telescopic rod and a lock head, one end of the elastic telescopic rod is fixed with the inner frame panel, the other end of the elastic telescopic rod is fixedly connected with the lock head, and the elastic telescopic rod is perpendicular to the box door.

Furthermore, the elastic telescopic rod comprises a fixed rod, a sliding rod and a spring, one end of the fixed rod is fixed with the inner frame panel, the other end of the fixed rod movably penetrates through the sliding rod, one end, far away from the fixed rod, of the sliding rod is connected with the lock head, the spring is sleeved on the elastic telescopic rod, and the spring is located between the inner frame panel and the lock head.

Furthermore, a limiting ring is fixedly sleeved on the fixed rod, one end of the spring is connected with the limiting ring, and the other end of the spring is connected with the lock head.

Furthermore, a locking groove is formed in the bottom of the lock head, the locking groove extends along the moving direction of the sliding rod, a locking block is fixed at one end, far away from the inner frame panel, of the box door, and the lock head penetrates through the connecting hole and is clamped with the locking block through the locking groove.

Further, an outer frame panel is fixed at one end of the power distribution cabinet body, a sliding space is formed between the outer frame panel and the inner frame panel, and the box door is arranged in the sliding space in a sliding mode.

Furthermore, the bottom of the box door is provided with a sliding groove along the sliding direction, a limiting block is arranged in the sliding space and fixedly connected with the distribution cabinet body, and the gap of the limiting block is matched in the sliding groove.

Furthermore, a pull ring is fixed at one end of the lock head, which is far away from the sliding rod.

The utility model has the advantages that:

the utility model provides a mechanical type self-locking mechanism of block terminal, the slip of the adaptation restriction chamber door through elasticity locating part and connecting hole, only need compress elasticity locating part and make elasticity locating part and connecting hole separation can slide the chamber door when unblanking to realize unblanking fast of block terminal, need not use unlocking means such as key can manually open the chamber door, make the process of unblanking of indoor block terminal become simple, but the very first time overhauls the block terminal, avoid influencing the problem of maintenance efficiency because of forgetting to take unlocking means.

Drawings

Fig. 1 is a front view of a mechanical self-locking mechanism of a distribution box according to the present invention;

fig. 2 is a schematic view of an internal structure of a mechanical self-locking mechanism of the distribution box of the present invention;

fig. 3 is a schematic structural view of an elastic limiting member in a mechanical self-locking mechanism of the distribution box according to the present invention;

fig. 4 is a perspective view of a mechanical self-locking mechanism of the distribution box of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 2;

in the figure, 1-power distribution cabinet body, 2-box door, 3-inner frame panel, 4-connecting hole, 5-elastic limiting piece, 6-elastic telescopic rod, 7-lock head, 8-fixed rod, 9-sliding rod, 10-spring, 11-limiting ring, 12-locking groove, 13-locking piece, 14-outer frame panel, 15-sliding groove, 16-limiting piece and 17-pull ring.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

In the first embodiment, as shown in fig. 1 and 2, a mechanical self-locking mechanism of a distribution box comprises a distribution box body 1 and a box door 2, wherein an inner frame panel 3 is fixed in an inner cavity of the distribution box body 1, the box door 2 is slidably connected with the distribution box body 1, the box door 2 is parallel to the inner frame panel 3, a connecting hole 4 is formed in the box door 2 in a penetrating manner, an elastic limiting piece 5 is arranged on the inner frame panel 3, and the elastic limiting piece 5 can extend into the connecting hole 4 to limit the box door 2 to slide; the sliding of the box door 2 is limited by the matching of the elastic limiting part 5 and the connecting hole 4, the box door 2 can slide only by compressing the elastic limiting part 5 to separate the elastic limiting part 5 from the connecting hole 4 when the box is unlocked, so that the quick unlocking of the distribution box is realized, the box door 2 can be manually opened without unlocking tools such as keys, the unlocking process of the indoor distribution box is simple, the distribution box can be maintained for the first time, and the problem that the maintenance efficiency is influenced by forgetting to take the unlocking tools is avoided.

In the second embodiment, as shown in fig. 3, the elastic limiting member 5 includes an elastic telescopic rod 6 and a lock head 7, one end of the elastic telescopic rod 6 is fixed to the inner frame panel 3, and the other end of the elastic telescopic rod is fixedly connected to the lock head 7, the elastic telescopic rod 6 is perpendicular to the door 2, the elastic telescopic rod 6 includes a fixed rod 8, a sliding rod 9 and a spring 10, one end of the fixed rod 8 is fixed to the inner frame panel 3, the other end of the fixed rod 8 movably penetrates through the sliding rod 9, one end of the sliding rod 9, which is far away from the fixed rod 8, is connected to the lock head 7, the spring 10 is sleeved on the elastic telescopic rod 6, the spring 10 is located between the inner frame panel 3 and the lock head 7, a limiting ring 11 is fixedly sleeved on the fixed rod 8, one end of the spring 10 is connected to the limiting ring 11, and the other end is connected to the lock head 7; when the lock head 7 extends into the connecting hole 4, the spring 10 is in a normal state, so that the lock head 7 abuts against the inner wall of the connecting hole to limit the box door 2 to slide, when the box door 2 needs to be opened, the lock head 7 is manually pressed close to the inner frame panel 3, the lock head 7 compresses the spring 10 under pressure to drive the sliding rod 9 to slide close to the inner frame panel 3, thereby, the elastic expansion link 6 is shortened to separate the lock head 7 from the connecting hole 4, at the moment, the sliding box door 2 enables the part of the lock head 7 to be abutted against one end of the box door 2 close to the inner frame panel 3, then the extrusion force of the lock head 7 is removed, the box door 2 can be freely slid, when the box door 2 needs to be closed, the box door 2 is slid, when the connecting hole 4 is positioned on the moving path of the lock head 7, the lock head 7 is ejected into the connecting hole 4 under the action of the spring 10, so that the automatic locking of the box door 2 is completed, and the locking and unlocking processes of the box door 2 are simple and quick.

Further, because the tapered end 7 needs to slide into the connecting hole 4, the tapered end 7 and the connecting hole 4 are in clearance fit, the locked box door 2 is unstable, a small sliding space is provided, the bottom of the tapered end 7 is provided with a locking groove 12, the locking groove 12 extends along the moving direction of the sliding rod 9, one end of the box door 2, which is far away from the inner frame panel 3, is fixed with a locking block 13, the tapered end 7 penetrates through the connecting hole 4 and is clamped with the locking block 13 through the locking groove 12, after the tapered end 7 extends into the connecting hole 4, the tapered end 7 is pulled away from the inner frame panel 3, the locking groove 12 of the tapered end 7 is matched with the locking block 13, the spring 10 is in a stretching state at the moment, so that the box door 2 is tightly abutted to the power distribution cabinet body 1 under the matching acting force of the locking groove 12 and the locking block 13 and the acting force of the spring 10, and the locked box door 2 is more stable.

Furthermore, a pull ring 17 is fixed at one end of the lock head 7 far away from the sliding rod 9, and the lock head 7 can be pulled far away from the inner frame panel 3 by hand conveniently through the pull ring 17.

Embodiment three, as shown in fig. 4 and fig. 5, the one end of the distribution cabinet body 1 is fixed with outer frame panel 14, be formed with the slip space between outer frame panel 14 and the inner frame panel 3, chamber door 2 slides and sets up in the slip space, spout 15 has been seted up along self slip direction to the bottom of chamber door 2, be provided with stopper 16 in the slip space, stopper 16 and distribution cabinet body 1 fixed connection, stopper 16 clearance adaptation is in spout 15, limit the slip scope of chamber door 2 through stopper 16, when keeping away from distribution cabinet body 1 slip chamber door 2 to stopper 16 and the tip of spout 15 counterbalance, prevent chamber door 2 roll-off slip space through the limiting displacement of stopper 16 this moment.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A mechanical self-locking mechanism of a distribution box is characterized by comprising a distribution box body (1) and a box door (2), wherein an inner frame panel (3) is fixed in an inner cavity of the distribution box body (1), the box door (2) is in sliding connection with the distribution box body (1), the box door (2) is parallel to the inner frame panel (3), a connecting hole (4) is formed in the box door (2) in a penetrating manner, an elastic limiting part (5) is arranged on the inner frame panel (3), the elastic limiting part (5) can extend into the connecting hole (4) and is used for limiting the sliding of the box door (2), the elastic limiting part (5) comprises an elastic telescopic rod (6) and a lock head (7), one end of the elastic telescopic rod (6) is fixed with the inner frame panel (3), the other end of the elastic telescopic rod is fixedly connected with the lock head (7), and the elastic telescopic rod (6) is perpendicular to the box door (2), the elastic telescopic rod (6) comprises a fixed rod (8), a sliding rod (9) and a spring (10), one end of the fixed rod (8) is fixed with the inner frame panel (3), the other end of the fixed rod (8) is movably arranged in a penetrating manner through the sliding rod (9), one end of the sliding rod (9) far away from the fixed rod (8) is connected with the lock head (7), the spring (10) is sleeved on the elastic telescopic rod (6), the spring (10) is positioned between the inner frame panel (3) and the lock head (7), a limiting ring (11) is fixedly sleeved on the fixed rod (8), one end of the spring (10) is connected with the limiting ring (11), the other end of the spring is connected with the lock head (7), a locking groove (12) is formed in the bottom of the lock head (7), the locking groove (12) extends along the moving direction of the sliding rod (9), and one end of the box door (2) far away from the inner frame panel (3) is fixedly provided with a locking block (13), the lock head (7) penetrates through the connecting hole (4) and is clamped with the lock block (13) through the lock groove (12).

2. The mechanical self-locking mechanism of the distribution box according to claim 1, wherein an outer frame panel (14) is fixed at one end of the distribution box body (1), a sliding space is formed between the outer frame panel (14) and the inner frame panel (3), and the box door (2) is slidably disposed in the sliding space.

3. The mechanical self-locking mechanism of the distribution box according to claim 2, wherein a sliding groove (15) is formed in the bottom of the box door (2) along the sliding direction of the box door, a limiting block (16) is arranged in the sliding space, the limiting block (16) is fixedly connected with the distribution box body (1), and the limiting block (16) is in clearance fit in the sliding groove (15).

4. The mechanical self-locking mechanism of the distribution box is characterized in that a pull ring (17) is fixed at one end of the lock head (7) far away from the sliding rod (9).