CN116826585A

CN116826585A - Manual shaking mechanism of drawer unit of low-voltage switch cabinet

Info

Publication number: CN116826585A
Application number: CN202310880149.2A
Authority: CN
Inventors: 殷晓东
Original assignee: Suzhou Xindegu Electrical Appliance Co ltd
Current assignee: Suzhou Xindegu Electrical Appliance Co ltd
Priority date: 2023-07-18
Filing date: 2023-07-18
Publication date: 2023-09-29

Abstract

The invention discloses a manual shaking mechanism of a drawer unit of a low-voltage switch cabinet, which comprises a mounting frame, a driving piece, a transmission mechanism and a sliding display switch, wherein the driving piece is rotationally arranged on the mounting frame; the transmission mechanism is in transmission connection with the driving piece and comprises a transmission gear meshed with the driving piece and a sliding plate intermittently connected with the transmission gear; the sliding display switch comprises a switch body and a position display mechanism, and the position display mechanism is linked with the sliding plate; the transmission gear is provided with an eccentric limiting part; the slide is opened in the middle of having one dodges the through-hole and dodges the roof of through-hole and be equipped with the spacing concave part that the even interval set up, and when arbitrary position sign position, the locating part joint is in the spacing concave part that corresponds. The sliding type position display mechanism is adopted, and the positioning of each position mark on the position display mechanism is realized through the clamping and matching of the limiting piece on the transmission gear and the limiting concave part on the sliding plate. The structure is simpler and the error is smaller.

Description

Manual shaking mechanism of drawer unit of low-voltage switch cabinet

Technical Field

The invention relates to the technical field of electrical components, in particular to a manual shaking mechanism of a drawer unit of a low-voltage switch cabinet.

Background

The drawer bin of the sliding display switch cabinet is an electrical device, drawers with different sizes and types are arranged on the drawer bin of the sliding display switch cabinet, and different circuit controllers are respectively arranged in the drawers, so that the circuit is always controlled through the drawer bin of the sliding display switch cabinet, the drawer structure generally comprises an inner drawer and a drawer base, circuit elements and the like are generally arranged in the inner drawer, the drawer base is provided with a sliding display switch piece for realizing the on-operation of the circuit elements in the inner drawer, three different special-state positions, namely a separation position, a test position and an on-position, are respectively arranged between the inner drawer and the drawer base, the separation position is a position at which the circuit is completely disconnected, the drawer of the drawer bin of the sliding display switch cabinet can be pulled out, the circuit in the drawer is operated, the risk is effectively avoided, the equipment loop is partially conducted in the test position, the equipment can be used as a test circuit, the test state is also called a test state, the circuit is in a state which can be completely on-operated after the whole on-state, the whole on-state is called a normal operation, and the on-state is also called a on-state, and the whole on-state is not permitted under the state.

The manual shaking-in mechanism of the existing drawer type electric cabinet drives the drawer to move through a hand crank, so that the positions (isolation, test or connection) are switched. If chinese patent document No. CN213402212U discloses a driving structure for drawer of draw-out type low-voltage sliding display switch cabinet, including base, locating part and driving part, be equipped with drive assembly and first locating part in the base, the locating part is connected with drive assembly transmission, driving part and base swing joint, including actuating lever and spring for when the locating part rotates with the locating part contact with the work of drive micro-motion sliding display switch and break away from with the locating part in order to stop the work of micro-motion sliding display switch. In order to display different positions of the driving structure, one end of the limiting piece extends out of the base and is clamped with an indicating disc, and three movement positions of connection, test and separation are marked on the indicating disc. The first gear is driven to rotate through external force, so that the second gear, the third gear and the fourth gear are driven to rotate in sequence, different movement positions are displayed on the indicating plate, limiting grooves corresponding to the three movement positions are formed in the fourth gear, and the movement positions of the driving structure at the moment are judged through clicking sounds sent out by the corresponding limiting grooves through the spring piece. According to the position display mechanism of the technical scheme, on one hand, the number of gears is too large, the structure is too complex, on the other hand, the spring piece and the limiting groove are used for being clamped to judge whether the movement position is in place, the functionality of the spring piece can be reduced after the spring piece is used for a long time, an operator can not accurately judge whether the movement position is in place when the spring piece is used, and if the movement position is possibly too much or possibly insufficient, namely the error is larger. Therefore, there is a need to develop a new manual swing mechanism for a low voltage switchgear drawer unit that is simpler in construction and less in error.

Disclosure of Invention

Aiming at least one of the technical problems, the invention aims to provide a manual shaking mechanism of a drawer unit of a low-voltage switch cabinet.

The technical scheme of the invention is as follows:

the invention aims to provide a manual shaking mechanism of a drawer unit of a low-voltage switch cabinet, which comprises a mounting frame, a driving piece, a transmission mechanism and a sliding display switch, wherein a mounting cavity is formed in the mounting frame; the driving piece can be controlled by the hand crank to be rotatably arranged on the mounting frame relative to the first horizontal line; the transmission mechanism is arranged in the mounting cavity and is in transmission connection with the driving piece, and comprises a transmission gear meshed with the driving piece and a sliding plate which is intermittently engaged with the transmission gear and can slide along the direction of a second horizontal line perpendicular to the first horizontal line; the sliding display switch comprises a switch body and a position display mechanism arranged on the switch body in a sliding manner, the position display mechanism is linked with the sliding plate, and three position identifiers of a connecting position, a test position and a separation position which are arranged at intervals along the second horizontal line direction are arranged on the position display mechanism; one end of the transmission gear, which faces the sliding plate, is provided with a limiting piece protruding towards the direction of the sliding plate and eccentrically arranged with the rotation axis of the transmission gear; the sliding plate is provided with a through hole which is formed in the middle of the sliding plate and used for avoiding the rotation path of the limiting piece, the top wall of the through hole is provided with limiting concave parts which are uniformly arranged at intervals along the second horizontal line direction and correspond to the position marks one by one, and the limiting piece is clamped in the corresponding limiting concave parts when any position mark is positioned.

Compared with the prior art, the invention has the advantages that:

according to the manual shaking mechanism of the drawer unit of the low-voltage switch cabinet, the sliding type position display mechanism is adopted, and accurate positioning of each position mark on the position display mechanism is realized through clamping and matching of the limiting piece on the transmission gear and the limiting concave part on the sliding plate. Compared with the existing rotary table type position display mechanism, the position display mechanism is simpler in structure and smaller in error, a spring piece is not needed to judge whether the position is in place, and the problem that the usability is affected due to long-time use of the spring piece is avoided.

Drawings

The invention is further described below with reference to the accompanying drawings and examples:

FIG. 1 is a schematic diagram of an exploded construction of a manual swing mechanism of a low voltage switchgear drawer unit according to an embodiment of the present invention;

FIG. 2 is a perspective view of a manual swing mechanism of a low voltage switchgear drawer unit according to an embodiment of the present invention;

FIG. 3 is a side view of a manual swing mechanism of a low voltage switchgear drawer unit according to an embodiment of the invention;

fig. 4 is a front view of a manual swing mechanism of a low voltage switchgear drawer unit according to an embodiment of the present invention.

Wherein: 1. a mounting frame; 11. a first mounting frame; 12. a second mounting frame; 121. a chute; 2. a driving member; 21. a drive tooth; 22. an operation hole; 3. a transmission mechanism; 31. a transmission gear; 311. a limiting piece; 32. a slide plate; 321. a through hole; 322. a limit concave part; 323. a second pin hole; 4. a sliding display switch; 41. a switch body; 42. a position display mechanism; 421. a position display mark; 43. a cover plate; 431. a display hole; 5. a worm.

Detailed Description

The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.

The embodiment of the invention provides a manual shaking mechanism of a drawer unit of a low-voltage switch cabinet, which is shown in fig. 1 to 4, and mainly comprises a mounting frame 1, a driving piece 2, a transmission mechanism 3 and a sliding display switch 4. The mounting frame 1 has a mounting cavity therein. The driving member 2 is rotatably provided on the mounting frame 1 with respect to the first horizontal line by manipulation of the hand crank. The transmission mechanism 3 is arranged in the installation cavity and is in transmission connection with the driving piece 2. The transmission mechanism 3 includes a transmission gear 31 engaged with the driving member 2 and a slide plate 32 intermittently engaged with the transmission gear 31 and slidable in a second horizontal line direction perpendicular to the first horizontal line. The sliding display switch 4 comprises a switch body 41 and a position display mechanism 42 arranged on the switch body 41 in a sliding manner, wherein the position display mechanism 42 is in linkage with the sliding plate 32, and three position identifiers of a connection position, a test position and a separation position which are arranged at intervals along the second horizontal line direction are arranged on the position display mechanism 42. The slide plate is provided with an avoidance through hole 321 which penetrates along the first horizontal line direction, and the top wall of the avoidance through hole 321 is provided with limit concave parts 322 which are uniformly arranged at intervals along the second horizontal line direction and are in one-to-one correspondence with the position marks, and when any position mark is positioned, the transmission gear 31 is clamped in the corresponding limit concave parts 322. According to the manual shaking mechanism provided by the embodiment of the invention, the sliding type position display mechanism 42 is adopted, and the positioning of each position mark on the position display mechanism 42 is realized through the clamping fit of the limiting piece 311 on the transmission gear 31 and the limiting concave part 322 on the sliding plate. Compared with the conventional rotary table type position display mechanism 42, the position display mechanism 42 of the embodiment of the invention has simpler structure and smaller error, does not need to adopt a spring piece to judge whether the position is in place, and can not cause the problem of influencing the service performance due to long-time use of the spring piece.

It should be noted that, in the embodiment of the present invention, the first horizontal line refers to the front-back direction as shown in fig. 2, and the second horizontal line direction is perpendicular to the first horizontal line direction, that is, the second horizontal line direction is the left-right direction as shown in fig. 2.

Preferably, as shown in fig. 1, for the limit recess 322, the recess is an inverted triangle recess and the apex angle of the recess is circular arc, that is, matches the shape of the first pin, so that better engagement can be achieved for positioning, while also facilitating the sliding of the sliding plate 32 along the second horizontal line direction by the first pin when the transmission gear 31 continues to rotate. A bump with a horizontal bottom surface is arranged between two adjacent limit concave parts 322. It should be noted that, in the embodiment of the present invention, the transmission gear 31 rotates one turn, the first pin just can be out of one limit concave portion 322 to be engaged with the latter limit concave portion 322, and the sliding plate 32 is pushed to slide while rotating out of the limit concave portion 322, so that the accuracy is high. The number of the limit concave parts 322 in the figure is three, wherein the positions of the limit concave parts 322 corresponding to the middle position shown in fig. 1 on the position display mechanism 42 are marked as test positions, and the positions of the left and right limit concave parts 322 corresponding to the position display mechanism 42 are marked as separation positions and connection positions. That is, when the first pin is engaged with any one of the left and right limiting recesses 322, the transmission gear 31 cannot rotate in the forward direction any more, and can only rotate in the reverse direction, that is, can only rotate in the direction toward the middle limiting recess 322.

As shown in fig. 1, the mounting frame 1 is assembled and connected together by two U-shaped mounting frames at a face-to-face distance. For convenience of description and distinction, the two mounting frames are described as a first mounting frame 11 and a second mounting frame 12, respectively. The first mounting frame 11 and the second mounting frame 12 define a mounting cavity therebetween. The mounting cavity is used for mounting the transmission 3 and the driving member 2. Specifically, the transmission gear 31 and the driving member 2 are both mounted on the side of the first mounting frame 11 facing the second mounting frame 12, i.e., the inner side, and the slide display switch 4 is mounted on the side of the second mounting frame 12 facing away from the first mounting frame 11, i.e., the outer side. Preferably, the drive member 2 and the transmission gear 31 are arranged up and down, that is to say, the axis of rotation of the drive member 2 and the axis of rotation of the transmission gear 31 are both parallel in the first horizontal direction, i.e. up and down. The occupied space in the installation cavity is smaller.

In a preferred embodiment, as shown in fig. 1, the stopper 311 is a pin fixed to the transmission gear 31, which is described as a first pin for convenience of description and distinction, that is, a pin hole (not shown, for distinction, described as a first pin hole) is formed in the transmission gear 31 offset from the rotation axis thereof, and then the first pin is fixed in the pin hole. Simple structure, low cost and convenient processing. As an alternative, it is also possible to weld the first pin to the transmission gear 31, the axis of the first pin being parallel to the axis of rotation of the transmission gear 31.

Preferably, as shown in fig. 1, a sliding groove 121 extending along the second horizontal line direction is formed on the second mounting frame 12, and the sliding plate 32 is penetrated through the sliding groove 121 by a linkage (not shown) and connected with the position display mechanism 42. Plays a role in guiding the sliding direction. Preferably, the linkage is a pin secured to a side of the slide plate 32 facing the second mounting frame 12 and extending in an outward protruding manner. The pin shaft is adopted, so that the structure is simple and the processing is convenient. As shown in fig. 1, a pin hole (for the sake of distinction, the pin hole is described as a second pin hole 323) penetrating in the first horizontal direction is formed in the slide plate 32, and the pin shaft is fixed in the second pin hole 323. As an alternative embodiment, the linkage may also be a link or other form such as a gear or intermittent mechanism, or the like.

As for the transmission gear 31, as shown in fig. 1 to 3, the number is preferably one. The number of gears is less, the structure is simpler, and the cost is lower. As an alternative embodiment, the number of transmission gears 31 may be other, such as two, etc.

As shown in fig. 1 to 3, the driving member 2 is a driving rod extending in the first horizontal line direction, and the driving teeth 21 engaged with the transmission gear 31 are provided on the outer surface of the driving rod. The transmission ratio of the driving teeth 21 to the driving gear 31 is 1:2, that is, the teeth of the driving teeth 21 to the teeth on the driving gear 31 are 1:2, the specific number of teeth is not described and limited, that is, the driving member 2 rotates for two circles, and the driving gear 31 rotates for one circle. That is to say, the diameter of the driving member 2 is small, the driving teeth 21 are small gears, and the transmission gear 31 is a large gear. By the design, the space of the installation cavity occupied by the driving piece 2 can be reduced, and the sliding plate can freely slide back and forth in the installation cavity more conveniently. In addition, the rotation speed of the output gear can be changed, the sliding speed of the position display mechanism 42 is reduced, the positioning of each position display mark 421 on the position display mechanism 42 can be accurately controlled, and the error is smaller.

As shown in fig. 1 and 4, the first mounting frame 11 is provided with a hollow portion (not labeled) corresponding to the outer end of the driving rod, and the outer end of the driving rod corresponds to the hollow portion and is provided with an operation hole 22 for operating the crank, which is concave inwards. The inner end of the drive rod is also provided with a worm 5, not specifically described and defined herein, which is a conventional structure of the existing conventional manual swing-in mechanism, and the specific connection and function are not described again, and are not the invention point, and are known and easily implemented by those skilled in the art.

Preferably, the axis of rotation of the driving member 2 is in a vertical direction from the perpendicular to the axis of rotation of the transfer gear 31. By such a design, the installation space occupied in the installation cavity by the driving member 2 and the transmission gear 31 can be reduced.

As shown in fig. 4, the slide display switch 4 includes a switch body 41, a position display mechanism 42 slidably provided in the switch body 41, and a cover plate 43 provided to cover a side of the position display mechanism 42 facing away from the second mounting frame 12. The communication state of the slide display switch 4 when at different position marks is not specifically described and defined, and is consistent with the principle of the rotary disc type position display mechanism 42 in the prior art. I.e. in the separated position, the sliding display switch 4 is not connected; when the test position is tested, only one route, namely the test route, is electrified; when the connection position is reached, the test circuit is powered off and the sliding display switch 4 is communicated. Preferably, the cover plate 43 is provided with a display hole 431 for exposing one of the position display marks 421 for display. Preferably, a transparent panel is provided at the display hole 431. The size of the display hole 431 corresponds to the size of any one of the position display marks 421 on the position display mechanism 42.

In the manual swing mechanism of the embodiment of the invention, a hand crank (not shown) is inserted into the operation hole 22 of the driving member 2, and the driving member 2 is driven to rotate around the first horizontal line by the hand crank, and the driving member 2 drives the transmission gear 31 to rotate. At the initial position, the corresponding position displayed in the hole 431 shows the separated position on the mechanism 42. The stopper 311 is positioned in the left-hand stopper recess 322 as viewed in fig. 1. Illustratively, as shown in FIG. 4, the position shown in the display hole 431 shows the connection position on the mechanism 42, with the stop 311 in the right stop recess 322. And the driving member 2 can only rotate anticlockwise and cannot rotate clockwise, i.e. the slide plate can only slide rightwards. Similarly, in the separated position, the driving member 2 can only rotate clockwise but cannot rotate counterclockwise, i.e. the slide plate can only slide leftwards. However, in the test position, the drive element 2 can be rotated either clockwise or counterclockwise, i.e. the slide plate can be slid either leftwards or rightwards.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and are in no way limiting of the invention. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims

1. The manual shaking mechanism of the drawer unit of the low-voltage switch cabinet is characterized by comprising a mounting frame, a driving piece, a transmission mechanism and a sliding display switch, wherein a mounting cavity is formed in the mounting frame; the driving piece can be controlled by the hand crank to be rotatably arranged on the mounting frame relative to the first horizontal line; the transmission mechanism is arranged in the mounting cavity and is in transmission connection with the driving piece, and comprises a transmission gear meshed with the driving piece and a sliding plate which is intermittently engaged with the transmission gear and can slide along the direction of a second horizontal line perpendicular to the first horizontal line; the sliding display switch comprises a switch body and a position display mechanism arranged on the switch body in a sliding manner, the position display mechanism is linked with the sliding plate, and three position identifiers of a connecting position, a test position and a separation position which are arranged at intervals along the second horizontal line direction are arranged on the position display mechanism; one end of the transmission gear, which faces the sliding plate, is provided with a limiting piece protruding towards the direction of the sliding plate and eccentrically arranged with the rotation axis of the transmission gear; the sliding plate is provided with a through hole which is formed in the middle of the sliding plate and used for avoiding the rotation path of the limiting piece, the top wall of the through hole is provided with limiting concave parts which are uniformly arranged at intervals along the second horizontal line direction and correspond to the position marks one by one, and the limiting piece is clamped in the corresponding limiting concave parts when any position mark is positioned.

2. The manual swing mechanism of a low voltage switchgear drawer unit according to claim 1, wherein the mounting frame comprises two U-shaped first and second mounting frames facing each other, the transmission gear is mounted on one surface of the first mounting frame facing the second mounting frame, the slide plate is arranged on one surface of the second mounting frame facing the first mounting frame, and the sliding display switch is arranged on one surface of the second mounting frame facing away from the first mounting frame;

the sliding plate is connected with the position display mechanism through a linkage piece.

3. The manual swing mechanism of a low voltage switchgear drawer unit according to claim 2, wherein a chute extending in the second horizontal direction is formed in the second mounting frame, and the linkage member is a pin or a connecting rod fixed on a surface of the sliding plate facing the second mounting frame, extending in an outward protruding manner, and penetrating through the chute.

4. A manual feed mechanism for a low voltage switchgear drawer unit as claimed in claim 3, wherein the number of said drive gears in said drive mechanism is one.

5. The manual swing mechanism of a low voltage switchgear drawer unit of claim 4, wherein the drive member is provided with drive teeth engaged with the drive gear, and the drive teeth and the drive gear have a transmission ratio of 1:2.

6. The manual swing mechanism of a drawer unit of a low-voltage switch cabinet according to claim 2, wherein the switch body comprises a cover plate, the cover plate is covered on one side of the position display mechanism, which is opposite to the second mounting frame, an avoidance hole for exposing one of the position identifiers is formed in the cover plate, and a transparent panel is arranged at the avoidance hole.

7. The manual swing mechanism of a low voltage switchgear drawer unit of claim 1 wherein said stop member is a pin.

8. The manual swing mechanism of a low voltage switchgear drawer unit of claim 1 wherein said limit recess is a groove having a rounded triangular shape with a rounded apex angle.

9. The manual shaking mechanism of a drawer unit of a low-voltage switch cabinet according to claim 2, wherein the driving piece is a driving rod with an axis along the first horizontal line direction, a hollowed-out part is arranged on the first mounting frame corresponding to the outer end of the driving rod, and an operation hole which is inwards recessed and used for the operation of the crank handle is arranged on the outer end of the driving rod corresponding to the hollowed-out part.