CN209675811U - A withdrawable low-voltage switchgear - Google Patents

Abstract

The utility model discloses a kind of draw-out type low voltage switch cabinets, it include: cabinet body, cabinet door, glass plate and the identical demixing plate of a pair of of structure, the cabinet body is rectangle without antetheca cavity body structure, and wall surface bottom end offers ventilation opening thereafter, the cabinet door activity is placed on cabinet body, the glass plate is in cabinet door, and it is located at cabinet door centre, a pair of described its left and right ends of demixing plate are welded in cabinet body on the wall surface of the left and right sides, and it is parallel to correspond respectively to center line, the utility model relates to switchgear technical fields, folding and unfolding is carried out by the cooperation of sliding block and sliding rail, classification installation electrical part is carried out by demixing plate layering；And it is moisture-proof by heat dissipation moisture-proof construction progress temperature control, guarantee the normal operation of switchgear；And by dexterously mechanism transmission design and simple transmission principle, carries out drawer self-locking, prevent from being opened accidentally electricity, or cause the electrical part installed inside accidental damage.

Description

A withdrawable low-voltage switchgear

technical field

The utility model relates to the technical field of switch cabinets, in particular to a drawer type low-voltage switch cabinet.

Background technique

The switch cabinet is a kind of electrical equipment. The outside line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs, such as instruments, automatic control, motor magnetic switches, various AC contactors, etc. Some also have high-voltage room and low-voltage room switchgear, high-voltage busbars, such as power plants, etc., and some also have low-cycle load shedding to ensure the main equipment. The main function of the switchgear is to generate electricity, transmit electricity, and In the process of power distribution and power conversion, switch, control and protect electrical equipment; according to different voltage levels, it can be divided into high-voltage switchgear, medium-voltage switchgear and low-voltage switchgear, etc., mainly suitable for power plants, substations, Various occasions such as petrochemical industry, metallurgy and steel rolling, light industry and textile, factories and mines, residential quarters, high-rise buildings, etc. Among them, the draw-out low-voltage switchgear must not only be drawn out for easy installation and maintenance, but also heat dissipation and moisture-proof, and the stability of the drawer must be guaranteed And the retractable self-locking to prevent accidental over-electricity or damage to the electrical components in the drawer. In view of this, this case came into being after in-depth research on the above problems.

Utility model content

The purpose of this utility model is to provide a draw-out low-voltage switchgear to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a draw-out low-voltage switchgear, including: a cabinet body, a cabinet door, a glass plate and a pair of layered plates with the same structure, the cabinet body is rectangular without a front wall The cavity structure, and the bottom end of the rear wall is provided with a vent, the cabinet door is movably placed on the cabinet body, the glass plate is embedded on the cabinet door, and is located at the center of the cabinet door, a pair of the branch The left and right ends of the laminate are welded to the left and right side walls of the cabinet, and are parallel to the center line respectively. A pair of retractable installation structures and a pair of locking protection structures are installed on the laminate. Installed with heat dissipation and moisture-proof structure;

The retractable installation structure includes: a pair of slide rails with the same structure, a pair of sliders with the same structure, drawers, handles and pulleys;

A pair of slide rails are respectively arranged on the wall surface of the layered board, and the two ends are parallel to the center line, and a pair of slide blocks are assembled in the slide rails. The drawer is a rectangular cavity without a cover, and its There is a first rectangular opening on the right side of the front wall, and a second rectangular opening on the right side wall. The left and right sides of the lower wall of the drawer are placed on the upper wall of the slider, and the slider is located near the center line of the lower wall. On the side, the handle is placed at the center of the front wall of the drawer and on the left side of the first rectangular opening, and the pulley is placed at the right end of the lower wall of the drawer, and is located on the center line and forms a triangle with the two sliding lines;

The locking protection structure includes: a lock box, a force handle, a spring, a rotating shaft, a gear, a lock block and a lock bar;

The lock box is placed at the lower right corner of the drawer, and its front wall is provided with a third rectangular opening opposite to the first rectangular opening of the drawer and having the same structure, and the right side wall is provided with a second rectangular opening on the right side of the drawer. The opening is opposite to the fourth rectangular opening with the same structure. The force-bearing arm is movable on the front wall of the drawer, and is located on the left side of the handle, and the front ends respectively pass through the first rectangular opening and the third rectangular opening. The inner side of the stressed handle is provided with tooth lines, the spring is placed obliquely between the stressed handle and the front wall of the drawer, and one end of it is fixed on the front wall of the drawer, and the other end is fixed on the rear wall of the stressed handle, and the rotating shaft is placed on the In the lock box, and located in front of the third rectangular opening, the top end of the shaft is inserted into the upper wall of the lock box, and the bottom end is inserted into the lower wall of the lock box. The gear is set on the shaft and is in contact with the force The inner teeth are meshed with each other, the lock block is placed on the right side wall of the cabinet, and is located behind the fourth rectangular opening, one end of the lock rod is fixed on the rotating shaft, and is located below the gear, and the other end runs through the The second rectangular through hole and the fourth rectangular through opening are attached to the rear wall of the lock block.

Preferably, the heat dissipation and moisture-proof structure includes: a heat dissipation fan and a moisture-proof pad;

The cooling fan is embedded in the upper wall of the cabinet and is located at the center, and the moisture-proof pad is placed on the lower wall of the cabinet.

Preferably, the force-bearing handle is a hook structure.

Preferably, a pair of bearings with the same structure are installed between the rotating shaft and the lock box.

Preferably, a movable pin is installed between the stressed handle and the drawer.

Compared with the prior art, the beneficial effect of the utility model is: the pull-out low-voltage switchgear, through the slider and the slide rail, and the pulley at the bottom form a triangle, so that the drawer can be retracted more stably; The electrical components are installed in layers; and the temperature is controlled and moisture-proof through the heat dissipation and moisture-proof structure to ensure the normal operation of the switchgear; and through the ingenious mechanical transmission design and simple transmission principle, the force is moved inward through a special type of force , through the tooth meshing transmission, the gear drives the rotating shaft to rotate, and then the lock lever can be swung to lock or unlock the drawer, so as to prevent accidental opening and overvoltage, or accidental damage to the internally installed electrical components.

Description of drawings

Fig. 1 is the main view structure schematic diagram of the utility model;

Fig. 2 is the left view structural representation of the utility model;

Fig. 3 is a top view sectional structure schematic diagram of the utility model.

Fig. 4 is a schematic diagram of a partially enlarged structure of the present invention.

In the figure: 1. Cabinet body, 2. Cabinet door, 3. Glass plate, 4. Laminated board, 5. Slide rail, 6. Slider, 7. Drawer, 8. Handle, 9. Pulley, 10. Lock box , 11, stressed handle, 12, spring, 13, rotating shaft, 14, gear, 15, lock block, 16, lock lever, 17, cooling fan, 18, moisture-proof pad, 19, bearing, 20, movable pin.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, the utility model provides a technical solution: a draw-out low-voltage switchgear, including: a cabinet body 1, a cabinet door 2, a glass plate 3 and a pair of layered plates 4 with the same structure, the The cabinet body 1 is a rectangular cavity structure without a front wall, and the bottom end of the rear wall is provided with an air vent, the cabinet door 2 is movably arranged on the cabinet body 1, the glass plate 3 is embedded on the cabinet door 2, and Located at the center of the cabinet door 2, the left and right ends of a pair of layered plates 4 are welded to the left and right side wall surfaces of the cabinet body 1, and are respectively parallel to the center line. For the retractable installation structure and a pair of locking protection structures, a heat dissipation and moisture-proof structure is installed in the cabinet body 1; the retractable installation structure includes: a pair of slide rails 5 with the same structure, and a pair of sliders with the same structure 6. Drawers 7, handles 8 and pulleys 9; a pair of slide rails 5 are respectively placed on the upper wall of the layered plate 4, and are located at both ends parallel to the centerline, and a pair of slide blocks 6 are assembled on the slide rails 5, the drawer 7 is a rectangular cavity without a cover, and the right side of the front wall is provided with a first rectangular opening, and the right side wall is provided with a second rectangular opening, and the left and right sides of the lower wall of the drawer 7 are arranged On the upper wall of the slider 6, and the slider 6 is located on the left side close to the center line of the lower wall, the handle 8 is arranged at the center of the front wall of the drawer 7 and on the left side of the first rectangular opening, and the pulley 9 is arranged on the The right end of the lower wall of the drawer 7 is located on the center line and forms a triangle with the two sliding lines; the locking protection structure includes: a lock box 10, a force handle 11, a spring 12, a rotating shaft 13, a gear 14, and a lock block 15 And the lock bar 16; the lock box 10 is placed in the lower right corner of the drawer 7, and its front wall is provided with a third rectangular opening opposite to the first rectangular opening of the drawer 7 and having the same structure, and the right side wall is opened There is a fourth rectangular opening that is opposite to the second rectangular opening on the right side of the drawer 7 and has the same structure. The stressed handle 11 is movably placed on the front wall of the drawer 7 and is located on the left side of the handle, and the front ends respectively pass through the first rectangular opening. In the opening and the third rectangular opening, the inner side of the force handle 11 is provided with tooth patterns, the spring 12 is obliquely placed between the force handle 11 and the front wall of the drawer 7, and one end is fixed on the front wall of the drawer 7 , the other end is fixed on the rear wall of the force handle 11, the rotating shaft 13 is placed in the lock box 10, and is located in front of the third rectangular opening, the top end of the rotating shaft 13 is inserted in the upper wall of the lock box 10, and the bottom The end is inserted into the lower wall of the lock box 10, the gear 14 is set on the rotating shaft 13 and meshes with the inner tooth pattern of the force handle 11, the lock block 15 is arranged on the right side wall of the cabinet body 1, and is located On the rear side of the fourth rectangular opening, one end of the locking rod 16 is fixed on the rotating shaft 13 and is located below the gear 14, and the other end passes through the second rectangular through hole and the fourth rectangular opening and fits behind the locking block 15 On the wall, the heat dissipation and moisture-proof structure includes: a heat dissipation fan 17 and a moisture-proof pad 18; On the inner lower wall, the force handle 11 is a hook structure, and the rotating shaft 13 is connected to the A pair of bearings 19 with the same structure are installed between the lock boxes 10, and a movable pin shaft 20 is installed between the stressed handle 11 and the drawer 7.

As a preferred solution, further, the heat dissipation and moisture-proof structure includes: a heat dissipation fan 17 and a moisture-proof pad 18;

The cooling fan 17 is embedded in the upper wall of the cabinet body 1 and is located at the center, and the moisture-proof pad 18 is arranged on the inner lower wall of the cabinet body 1 .

As a preferred solution, further, the force-bearing handle 11 is a hook-up structure, which is used to meet the transmission and achieve the design effect.

As a preferred solution, further, a pair of bearings 19 with the same structure are installed between the rotating shaft 13 and the lock box 10, so that the rotating shaft 13 is easy to rotate.

As a preferred solution, further, a movable pin shaft 20 is installed between the stressed handle 11 and the drawer 7 , so that the stressed handle can move in a set circular angle with the movable pin shaft 20 as the center of the circle.

Its detailed connection means is a well-known technology in the art. The following mainly introduces the working principle and process, and the specific work is as follows.

Embodiment: According to accompanying drawings 1-3 of the specification, firstly, part of the situation in the cabinet body 1 can be observed through the glass plate 3 on the cabinet door 2, and after the cabinet door 2 is manually opened, it can be seen that the The cabinet 1 is divided into three chambers; the drawer 7 can be driven and moved in the slide rail 5 through the slider 6 below by applying a pulling force through the handle 8, and the connection between the pulley 9 and the left and right sliders 6 forms a triangle shape , so that the drawer 7 is more stable during the retraction process, and the operator can install equipment and electrical components in the drawer 7, so that it is convenient to put it into the cabinet body 1 after installation, and it is also convenient for maintenance and inspection; through the moisture-proof pad 18 at the bottom of the interior Moisture-proof, and the two drawers 7 above it are isolated from the bottom with a space, which can better ensure the moisture-proof of the upper device; through the cooling fan 17 in the upper wall of the cabinet body 1, the air is blown to the inside, and the wind passes through the cabinet door 2 and the layered plate 4 The distance between them is passed down, and finally flows out through the vent; in order to prevent accidental electric shock and accidental damage to the internal electrical components after being opened at will, the movable pin 20 between 11 and drawer 7 is connected by force, so that the force The handle 11 takes the movable pin shaft 20 as the center of the circle to displace a certain angle in the lock box 10 through the first rectangular opening, and can automatically reset by the spring 12; The spring 12 is compressed by force, and the special shape of the spring 11 and the tooth pattern provided by the force are meshed with the gear 14, so that the gear 14 rotates in the opposite direction, and then the rotating shaft 13 is driven to rotate in the lock box 10 through the bearing 19, and then Make the locking bar 16 driven to swing in the opposite direction through the second rectangular opening, leave the lock block 15 to unlock, and then the drawer 7 can be pulled out through the handle; if it is locked and the same as above, apply force to the handle 11 Pressure, the drawer 7 is returned by the elastic force of the spring 12 to make the stressed handle 11 reset, and the locking bar 16 is reset and locked in the lock block 15 by transmission to lock it.

Claims (5)

1. a kind of draw-out type low voltage switch cabinet, comprising: cabinet body (1), cabinet door (2), glass plate (3) and a pair of of identical point of structure Laminate (4), which is characterized in that the cabinet body (1) is that wall surface bottom end offers ventilation to rectangle without antetheca cavity body structure, and thereafter Mouthful, cabinet door (2) activity is placed on cabinet body (1), and the glass plate (3) is located at cabinet door (2) on cabinet door (2) At centre, a pair of described its left and right ends of demixing plate (4) are welded in cabinet body (1) on the wall surface of the left and right sides, and right respectively Should be parallel in center line, a pair of of folding and unfolding mounting structure and a pair of of locking safeguard structure, institute are installed on the demixing plate (4) It states in cabinet body (1) and heat dissipation moisture-proof construction is installed；

The folding and unfolding mounting structure, comprising: the identical sliding rail (5) of a pair of of structure, the identical sliding block (6) of a pair of of structure, drawer (7), knob (8) and pulley (9)；

A pair of sliding rail (5) is placed in demixing plate (4) upper wall surface respectively, and parallel corresponding to center line positioned at both ends, and one The sliding block (6) is assemblied in sliding rail (5), the drawer (7) is uncovered rectangular cavities, and its front face right side opening is equipped with the One rectangle port, and right side wall surface offers the second rectangle port, is placed in sliding block at left and right sides of drawer (7) lower wall surface (6) upper wall surface, and its sliding block (6) is located on the left of lower wall surface center line, the knob (8) is placed in drawer (7) front face At centre and it is located on the left of the first rectangle port, the pulley (9) is placed in drawer (7) lower wall surface right end, and is located at Triangle is wired on heart line and with two cunnings；

The locking safeguard structure, comprising: lock box (10), stress are (11), spring (12), shaft (13), gear (14), closing piece (15) and locking bar (16)；

The lock box (10) is placed at the interior lower right corner position of drawer (7), and its front face offers and (7) first rectangle of drawer Port is opposite and the identical third rectangle port of structure, and right side wall surface offers and the second rectangle port phase of drawer (7) right side Pair and the identical 4th rectangle port of structure, (11) activity is placed in drawer (7) front face by the stress, and it is left to be located at handle Side, and front end is extended through in the first rectangle port and third rectangle port, the stress offers (11) inner end Groove, spring (12) tiltably-mounted in stress (11) between drawer (7) front face, and one end is fixed on drawer (7) front face, the other end are fixed on stress (11) rear surface, and the shaft (13) is placed in lock box (10), and are located at the In front of three rectangle ports, described its top of shaft (13) is plugged in lock box (10) upper wall, and bottom end is plugged under lock box (10) In wall, the gear (14) is set on shaft (13) and groove on the inside of (11) is intermeshed with stress, the closing piece (15) It is placed in cabinet body (1) on the wall surface of right side, and is located on rear side of the 4th rectangle port, locking bar (16) one end is fixed on shaft (13) on, and it is located at below gear (14), the other end is through in the second rectangular through-hole and the 4th rectangle port and fitting in On closing piece (15) rear surface.

2. a kind of draw-out type low voltage switch cabinet according to claim 1, it is characterised in that: the heat dissipation moisture-proof construction, packet It includes: heat emission fan (17) and moistureproof cushion (18)；

The heat emission fan (17) is located at centre in cabinet body (1) upper wall surface, and the moistureproof cushion (18) is placed in Cabinet body (1) lower inner wall face.

3. a kind of draw-out type low voltage switch cabinet according to claim 1, it is characterised in that: the stress is to hook dress (11) Structure.

4. a kind of draw-out type low voltage switch cabinet according to claim 1, it is characterised in that: the shaft (13) and lock box (10) the identical bearing of a pair of of structure (19) is installed between.

5. a kind of draw-out type low voltage switch cabinet according to claim 1 or 3, it is characterised in that: the stress (11) with Active pin shaft (20) are installed between drawer (7).