CN209981860U

CN209981860U - Over-and-under type block terminal

Info

Publication number: CN209981860U
Application number: CN201921255946.7U
Authority: CN
Inventors: 何家建
Original assignee: Shenzhen Jin Zhong Moeller Electrical Appliances Co Ltd
Current assignee: Shenzhen Jin Zhong Moeller Electrical Appliances Co Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-01-21
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a lifting distribution box, which comprises a distribution box body, a rain shelter and an electrical element, wherein the electrical element is arranged on a frame with an opening on the front surface, two sides of the frame are respectively and fixedly connected with a secondary stroke component, the secondary stroke component is arranged on a primary stroke component, and the frame is driven by the primary stroke component to carry out double-stroke displacement; the utility model aims at providing an over-and-under type block terminal aims at carrying out the decline of super long-range stroke to the inside component ware of block terminal, makes this block terminal application scope wider, convenient operation, promotion security performance.

Description

Over-and-under type block terminal

Technical Field

The utility model belongs to the technical field of the electrical equipment technique and specifically relates to a lifting type distribution box is related to.

Background

The distribution box is a low-voltage distribution box formed by assembling switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirement. In normal operation, the circuit can be switched on or off by means of a manual or automatic switch.

To wall-hanging block terminal, generally install in the high position, when needs open the door and operate or overhaul, operating personnel need additionally carry out the operation with the help of the double ladder, and unsafe too more and inconvenient operation and maintenance are too long more at high altitude construction time, and intensity of labour is big, though the over-and-under type block terminal has appeared in the market, the decline degree of inside components and parts is far away not enough, and to this, it is necessary to develop a lift block terminal of super long stroke to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at above problem, provide an over-and-under type block terminal, aim at carrying out the decline of super long-range stroke to the inside electrical component of block terminal, make this block terminal application scope wider, convenient operation, promote the security performance.

In order to achieve the purpose, the utility model adopts the technical scheme that the device comprises a distribution box body, a rain shelter and an electric element, wherein the electric element is arranged on a frame with an opening on the front surface, two sides of the frame are respectively and fixedly connected with a secondary stroke component, the secondary stroke component is arranged on a primary stroke component, and the frame is driven by the primary stroke component to carry out double-stroke displacement; wherein:

the primary stroke assembly comprises a stepping motor fixed on the rain shelter, an output shaft of the stepping motor is connected with a ball screw, the ball screw penetrates through the driving block and is in threaded connection with the driving block, lifting plates are arranged on two sides of the driving block, and a pull rod for mounting the secondary stroke assembly is arranged at the lower ends of the lifting plates;

the secondary stroke assembly comprises two groups of rotatable carrier rollers which are connected with the pull rod and are arranged up and down, the upper carrier rollers are connected with the lower carrier rollers through driving belts, the driving belts at the outer ends are arranged on the fixing blocks of the power distribution box body, and the driving belts at the inner ends are connected with the frame.

Further, the lower extreme of distribution box body articulates there is the bottom plate that one side end opened jagged groove, and the inside extension of distribution box body has a clamp plate, be provided with on the clamp plate and stretch into the jagged inslot, with the fixed inserted bar of bottom plate, the other end of inserted bar stretches out the clamp plate and is connected with the pull ring, and the pole body of inserted bar is overlapped and is equipped with the spring.

Furthermore, the frame comprises a rear plate and two side plates, and the side plates are provided with fixing sleeves fixedly connected with the driving belt.

Furthermore, a sliding groove is formed in the frame, and a positioning rod extending into the sliding groove is arranged on the distribution box body.

Furthermore, a switch button for controlling the opening and closing of the stepping motor is arranged on the side plate.

Furthermore, the rain shelter is downwards provided with a guide rod which penetrates through the lifting plate and the frame rear plate to be arranged in a sliding mode.

Furthermore, a reinforcing rib is arranged on the guide rod.

Furthermore, the rain shelter is of a triangular structure.

Furthermore, the rain shelter is also provided with heat dissipation holes.

Compared with the prior art, the utility model, the beneficial effects are that: the distribution box is subjected to primary stroke descending by the stepping motor, and is subjected to secondary stroke descending by the action of the driving belt in the descending process, so that an electric element is subjected to double-stroke descending, the stroke distance is longer than that of the conventional distribution box, under the condition of completing the same stroke distance, the space occupied by the stroke components in the distribution box is less, and compared with the conventional lifting distribution box, the distribution box is reduced in size and wider in application range; other advantages of the present invention will be further explained in the detailed description of the invention.

Drawings

Fig. 1 is the internal structure schematic diagram of the lifting distribution box of the utility model.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural view of the frame.

The text labels in the figures are represented as: 1. a distribution box body; 2. a rain shelter; 3. an electrical component; 4. a frame; 5. a secondary stroke assembly; 6. a fixed block; 7. a primary stroke assembly; 8. a guide bar; 9. heat dissipation holes; 10. reinforcing ribs; 11. a switch button; 12. a base plate; 13. inserting a rod; 14. a pull ring; 15. a spring; 16. positioning a rod; 41. a back plate; 42. a side plate; 51. a carrier roller; 52. a drive belt; 71. a stepping motor; 72. a drive block; 73. a lifting plate; 74. a pull rod; 101. pressing a plate; 120. a notch groove; (ii) a 421. Fixing a sleeve; 422. a chute; 710. and a ball screw.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

Referring to fig. 1, the overall internal structure of the distribution box of the present invention is shown, which includes a distribution box body 1, a canopy 2 and an electrical component 3;

more specifically, the electrical component 3 is mounted on a frame 4 with a front opening as shown in fig. 3, the frame 4 is composed of a back plate 41 and two side plates 42, the two side plates 42 of the frame 4 are respectively fixedly connected with two sets of secondary stroke components 5, the secondary stroke components 5 are arranged on the primary stroke components 7, and the frame 4 is driven by the primary stroke components 7 to perform double-stroke displacement; wherein:

the primary stroke assembly 7 comprises a stepping motor 71 fixed on the rain shelter 2, an output shaft of the stepping motor 71 is connected with a ball screw 710, the ball screw 710 penetrates through a driving block 72 and is in threaded connection with the driving block 72, lifting plates 73 are arranged on two sides of the driving block 72, and a pull rod 74 for mounting the secondary stroke assembly 5 is arranged at the lower end of each lifting plate 73;

the secondary stroke assembly 5 comprises two groups of rotatable supporting rollers 51 which are connected with the pull rod 74 and are arranged up and down, the upper supporting rollers and the lower supporting rollers are connected through a driving belt 52, the driving belt 52 at the outer end is arranged on the fixing block 6 of the distribution box body 1, and the driving belt 52 at the inner end is connected with a fixing sleeve 421 of the frame 4.

The specific lifting process is as follows: the bottom plate 12 is opened, then the switch button 11 is pressed, the stepping motor 71 is controlled to be started, the output shaft drives the ball screw 710 to rotate, the driving block 72 in threaded connection with the ball screw is driven to descend, the lifting plate 73 is displaced on the guide rod 8, the primary stroke assembly 7 drives the secondary stroke assembly 5 and the frame 4 to integrally descend in the descending process, the primary stroke drives the driving belt 52 to rotate on the carrier roller 51, the rotating driving belt 52 drives the frame 4 to descend again, and therefore double-stroke displacement is completed, the electric element 3 on the frame 4 is descended to a proper position, and operation of an operator is safer and more convenient.

Opening and closing processes of the bottom plate 12: referring to fig. 2, when unfolding, pulling the pull ring 14, the plunger 13 compresses the spring 15 and pulls the plunger 13 out of the notch 120, and the bottom plate 12 unfolds by itself under the action of gravity; when the bottom plate 12 is closed, the pull ring 14 is pulled, then the bottom plate 12 is rotated clockwise until the upper surface of the bottom plate 12 contacts the pressure plate 101, so that the bottom plate 12 cannot be pushed any more, then the pull ring 14 is loosened, the spring 15 automatically resets, the inserted rod 13 extends into the notch groove 120, and the locking of the bottom plate 12 is completed.

Certainly, the frame 4 is provided with the chute 422 for improving the stability of the frame 4 in the lifting process and preventing the frame 4 from shaking, the distribution box body 1 is provided with the positioning rod 16, and the positioning rod 16 extends into the chute 422.

Preferably, the canopy 2 is provided with a guide rod 8 extending through the lifting plate 73 and slidably arranged with the rear plate 41 of the frame 4, so as to improve the stability of the lifting plate 73 during ascending or descending.

Preferably, the guide rod 8 is provided with a reinforcing rib 10 for fixing the canopy 2, and the canopy 2 is of a triangular structure.

Preferably, the canopy 2 is further provided with heat dissipation holes 9 to prevent internal overheating.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can be combined in a proper manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims

1. A lifting distribution box comprises a distribution box body (1), a rain shelter (2) and an electrical element (3), and is characterized in that the electrical element (3) is arranged on a frame (4) with an opening on the front surface, two sides of the frame (4) are respectively and fixedly connected with a secondary stroke assembly (5), the secondary stroke assembly (5) is arranged on a primary stroke assembly (7), and the frame (4) is driven by the primary stroke assembly (7) to perform double-stroke displacement; wherein:

the primary stroke assembly (7) comprises a stepping motor (71) fixed on the rain shelter (2), an output shaft of the stepping motor (71) is connected with a ball screw (710), the ball screw (710) penetrates through a driving block (72) and is in threaded connection with the driving block (72), lifting plates (73) are arranged on two sides of the driving block (72), and a pull rod (74) for mounting the secondary stroke assembly (5) is arranged at the lower end of each lifting plate (73);

the secondary stroke assembly (5) comprises two groups of rotatable carrier rollers (51) which are connected with the pull rod (74) and are arranged up and down, the upper carrier rollers are connected with the lower carrier rollers through driving belts (52), the driving belts (52) at the outer ends are arranged on a fixing block (6) of the distribution box body (1), and the driving belts (52) at the inner ends are connected with the frame (4).

2. The lifting distribution box according to claim 1, wherein the lower end of the distribution box body (1) is hinged with a bottom plate (12) with a notch groove (120) at one side end, the distribution box body (1) extends inwards to form a pressing plate (101), an inserting rod (13) which extends into the notch groove (120) and fixes the bottom plate (12) is arranged on the pressing plate (101), the other end of the inserting rod (13) extends out of the pressing plate (101) to be connected with the pull ring (14), and a spring (15) is sleeved on the rod body of the inserting rod (13).

3. The distribution box according to claim 1, characterized in that said frame (4) is composed of a back plate (41) and two side plates (42), said side plates (42) being provided with fixing sleeves (421) for fixed connection with the driving belt (52).

4. The lifting distribution box according to claim 3, wherein the frame (4) is provided with a chute (422), and the distribution box body (1) is provided with a positioning rod (16) extending into the chute (422).

5. The lifting distribution box according to claim 3, characterized in that the side plates (42) are provided with a switch button (11) for controlling the on and off of the stepping motor (71).

6. A lifting distribution box according to claim 1, characterised in that the canopy (2) is provided with downwardly extending guide rods (8) slidably arranged through the lifting plate (73) and the rear plate (41) of the frame (4).

7. The elevating distribution box according to claim 6, characterized in that said guide rods (8) are provided with stiffening ribs (10).

8. A lifting distribution box according to claim 1, characterized in that said awning (2) is of triangular configuration.

9. The lifting distribution box of claim 8, wherein the canopy (2) is further provided with heat dissipation holes (9).