CN220692681U

CN220692681U - Manual shaking mechanism of drawer unit of low-voltage switch cabinet

Info

Publication number: CN220692681U
Application number: CN202321886240.7U
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: 2024-03-29
Anticipated expiration: 2033-07-18

Abstract

The utility model discloses a manual shaking mechanism of a low-voltage switch cabinet drawer unit, which comprises a mounting frame, a first driving piece and a transmission mechanism, wherein a mounting cavity is formed in the mounting frame; the first driving piece is rotatably arranged on the mounting frame relative to a first horizontal line and is positioned in the mounting cavity under the control of the hand crank; the transmission mechanism is arranged in the mounting cavity and comprises a transmission gear meshed with the driving piece and a movable piece intermittently engaged with the transmission gear, and the movable piece is driven by rotation of the transmission gear to move in the separation process after being engaged with the transmission gear. The transmission mechanism adopts a transmission gear and a movable part which forms a geneva mechanism or an intermittent mechanism with the transmission gear, and compared with the transmission mechanism with a plurality of transmission gears in the prior art, the transmission mechanism has simpler structure and lower cost.

Description

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

Technical Field

The utility model 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 switch cabinet is an electrical device, drawers with different sizes and types are arranged on the drawer bin of the switch cabinet, and different circuit controllers are respectively arranged in the drawers, so that the circuit is controlled through the drawer bin of the 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 switch piece for realizing the conduction operation of the circuit elements in the inner drawer, three different special-state positions, namely a separation position, a test position and a connection position, are arranged between the inner drawer and the drawer base, the separation position is a position where the circuit is completely disconnected, the drawer of the drawer bin of the switch cabinet can be pulled out, the circuit in the drawer is operated, the danger is effectively avoided, the circuit loop part of the device is conducted in the test position, the device can be used as a test circuit, the test state is also called a test state, the drawer is not allowed to be pulled out when the drawer is in the full connection position, the circuit is in the state which can be completely connected, the circuit can normally operated after being closed, the drawer is also called a connection position, and the drawer is not allowed to be pulled out when the drawer is in 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. For example, chinese patent document No. CN213402212U discloses a driving structure for drawer of draw-out low-voltage switch cabinet, which comprises a base, a limiting member and a driving member, wherein a transmission assembly and a first positioning member are arranged in the base, the limiting member is in transmission connection with the transmission assembly, the driving member is movably connected with the base, and comprises a driving rod and a spring, and the driving rod and the spring are used for contacting with the limiting member to drive the micro-switch to work and separating from the limiting member to stop the micro-switch when the limiting member rotates. The transmission assembly comprises a first gear, a second gear, a third gear and a fourth gear which are connected in a meshed mode. The driving structure adopts four gears as a transmission component, the limit part is a gear, the position display mechanism adopts a turntable structure, the gears are also arranged, the number of the gears is more, the whole structure is complex, and the cost is higher. 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 costly.

Disclosure of Invention

Aiming at least one of the technical problems, the utility model aims to provide a manual shaking mechanism of a drawer unit of a low-voltage switch cabinet, which has the advantages of greatly reduced number of gears and simpler structure.

The technical scheme of the utility model is as follows:

the utility model aims to provide a manual shaking mechanism of a drawer unit of a low-voltage switch cabinet, which comprises a mounting frame, a first driving piece and a transmission mechanism, wherein a mounting cavity is formed in the mounting frame; the first driving piece is rotatably arranged on the mounting frame relative to a first horizontal line and is positioned in the mounting cavity under the control of the hand crank; the transmission mechanism is arranged in the mounting cavity and comprises a transmission gear meshed with the driving piece and a movable piece intermittently engaged with the transmission gear, and the movable piece is driven by the rotation of the transmission gear to move in the separation process after being engaged with the transmission gear;

the movable piece is a sliding piece which is movably arranged in the mounting cavity and slides along the direction of a second horizontal line perpendicular to the first horizontal line;

one end of the transmission gear, which faces the movable part, is provided with a second driving part which protrudes towards the movable part and is eccentrically arranged with the rotation axis of the transmission gear, and the second driving part is used for intermittently engaging with the sliding part and driving the sliding part to slide;

the sliding part is provided with a through hole penetrating along the first horizontal line direction, the top wall of the through hole is provided with a plurality of positioning concave parts which are uniformly distributed at intervals along the sliding direction of the sliding part, and the positioning concave parts are implemented as the joint parts of the second driving part and the sliding part.

Preferably, the manual shaking mechanism further comprises a switch, the sliding piece is connected with a position display mechanism in the switch through a linkage piece, the position display mechanism is provided with position display marks for separation, test and connection, and the positioning concave parts correspond to different position display marks respectively.

Preferably, the linkage member is a connecting rod or a pin which is arranged on the sliding member and extends towards one side of the switch along the first horizontal line direction;

and the mounting frame is provided with an avoidance groove which extends along the second horizontal line direction and is used for the connecting rod or the pin to pass through and be in sliding fit.

Preferably, a cover plate is arranged on one side of the switch, which is opposite to the transmission mechanism, and a display hole for displaying one of the position display marks is formed in the cover plate, and a transparent panel is arranged at the display hole.

Preferably, the second driving member is a pin.

Preferably, the positioning concave part is a chamfer-shaped groove with a circular arc-shaped top angle.

Preferably, the first driving piece is a driving rod extending along the first horizontal line direction, driving teeth meshed with the transmission gear are arranged on the outer surface of the driving rod, and the transmission ratio of the driving teeth on the driving rod to the transmission gear is 1:2.

Preferably, the mounting frame is provided with a hollowed-out part corresponding to the outer end of the driving rod, and the outer end of the driving rod corresponds to the hollowed-out part and is provided with an inwards concave operation hole for the operation of the hand crank.

Preferably, the perpendicular to the rotation axis of the first driving member and the rotation axis of the transmission gear is in a vertical direction.

Compared with the prior art, the utility model has the advantages that:

the manual shaking mechanism of the drawer unit of the low-voltage switch cabinet adopts a transmission gear and a movable part which forms a solar shingle mechanism or an intermittent mechanism together with the transmission gear, and compared with the transmission mechanism of a plurality of transmission gears in the prior art, the manual shaking mechanism of the drawer unit of the low-voltage switch cabinet has simpler structure and lower cost.

Drawings

The utility model 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 utility model;

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

FIG. 3 is a perspective view of a manual swing mechanism of a low voltage switchgear drawer unit according to an embodiment of the present utility model;

fig. 4 is a side view of a manual swing mechanism of a low voltage switchgear drawer unit according to an embodiment of the utility model.

Wherein: 1. a mounting frame; 11. a first mounting frame; 12. a second mounting frame; 121. an avoidance groove; 2. a first driving member; 21. a drive tooth; 22. an operation hole; 3. a transmission mechanism; 31. a transmission gear; 311. a second driving member; 32. a slider; 321. a through hole; 322. a positioning concave part; 323. a second pin hole; 4. a 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 utility model will become more apparent by the following detailed description of the present utility model 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 utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

The embodiment of the utility model 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 first driving piece 2, a transmission mechanism 3 and a switch 4. The first driving member 2 is arranged on the mounting frame 1, and the transmission mechanism 3 is arranged in the mounting frame 1 and is in transmission connection with the first driving member 2, namely, driven by the first driving member 2 to receive the power transmitted by the first driving member 2 for action. The switch 4 is mounted on the mounting frame 1 and is driven by the transmission mechanism 3 to switch among a disconnected position, a test position, and a connection position. In the embodiment of the utility model, the first driving member 2 can rotate relative to the first horizontal line under the operation of the hand crank. The first horizontal line in the embodiment of the present utility model refers to the front-rear direction as shown in fig. 2. The transmission mechanism 3 includes a transmission gear 31 and a movable member. The transmission gear 31 is in meshing driving connection with the first drive member 2. The movable member is intermittently engaged with the transmission gear 31, and the movable member is driven to move by the rotation of the transmission gear 31 in the process of separating after the engagement of the transmission gear 31, that is, in the embodiment of the present utility model, the transmission gear 31 and the movable member constitute a geneva mechanism or an intermittent mechanism. In the manual shaking mechanism according to the embodiment of the utility model, the transmission mechanism 3 is provided with only one gear and the driving teeth 21 on the first driving member 2, namely two gears, namely a group of gears, compared with the prior art that the transmission mechanism 3 adopts a plurality of gears (more than two gears), the manual shaking mechanism according to the embodiment of the utility model has the advantages of fewer gears, simpler structure and lower cost.

Specifically, 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 first driver 2. Specifically, the transmission gear 31 and the first driving member 2 are both mounted on the inner side surface of the first mounting frame 11, and the switch 4 is mounted on the outer side surface of the second mounting frame 12. Preferably, the first drive member 2 and the transmission gear 31 are arranged one above the other, that is to say the axis of rotation of the first 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. In a preferred embodiment of the present utility model, the movable member is a sliding member 32 movably disposed in the mounting cavity and sliding along a second horizontal line direction perpendicular to the first horizontal line direction, that is, the second horizontal line direction is the left-right direction as shown in fig. 2. That is, the sliding member 32 is driven to slide in the horizontal direction by the rotation of the transmission gear 31, so that the sliding switching of the position display mechanism 42 on the switch 4 is realized. As an alternative embodiment, the movable member may also be rotated about the first horizontal line as the transmission gear 31, i.e. the movable member is a rotary member, that is to say the position display mechanism 42 on the switch 4 is switched in rotation, and for this construction reference may be made to the two rotationally fitted geneva constructions conventional in the prior art, as will be readily appreciated and realized by those skilled in the art.

As for the specific structure of the sliding switch in the embodiment of the present utility model, as shown in fig. 1, a structural member that protrudes toward the slider 32 is provided on the face of the transmission gear 31 facing the slider 32, for intermittently engaging with the slider 32 and driving the slider 32 to slide in the second horizontal line direction while continuing to rotate, i.e., separating from the slider 32. For convenience of description, the structural member is described as the second driving member 311. The second driving member 311 is disposed eccentrically with respect to the rotation axis of the transmission gear 31. In a preferred embodiment, the second driving member 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) is formed in the transmission gear 31 offset from the rotation axis thereof (for distinction, the pin hole is described as a first pin hole), the axis of which is parallel to the rotation axis of the transmission gear, and then the first pin is fixed in the first 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 also being parallel to the axis of rotation of the transmission gear 31.

As shown in fig. 1, the sliding member 32 is a square plate, and a through hole 321 penetrating along the first horizontal line direction is formed in the middle of the square plate, and the through hole 321 is used for avoiding the rotation of the first driving member 2, and the rotation shaft of the transmission gear 31 is also positioned in the through hole 321. In order to realize the positioning of the first pin at different position marks of the position display mechanism 42, positioning concave portions 322 are further formed on the top wall of the through hole 321 at uniform intervals along the second horizontal line direction, each positioning concave portion 322 corresponds to one position mark on the position display mechanism 42, that is, the number of the positioning concave portions 322 is three, the three positioning concave portions 322 correspond to the three position marks one by one, and each positioning concave portion 322 is implemented as the joint position of the first pin and the sliding member 32. The sliding piece 32 is connected with the position display mechanism 42 through a linkage piece, and the movement of the sliding piece 32 drives the switching display of different positions on the position display mechanism 42. For the linkage, an embodiment of the present utility model is preferably a link or pin (for ease of distinction, the pin is here a second pin). As shown in fig. 1, the slider 32 is provided with a pin hole (for the sake of distinction, the pin hole is described as a second pin hole 323) for mounting the connecting rod or the second pin. Simple structure and low cost, and convenient processing. As an alternative embodiment, the linkage member may be other linkage structures known to those skilled in the art, and not specifically described and limited, for example, the linkage structure may implement sliding or rotating switching of the position indicator on the position display mechanism 42, which is within the scope of the present utility model. Embodiments of the present utility model preferably employ a link or pin to effect sliding switching of the position indication on the position display mechanism 42. The structure is simple, and the display position in place is marked by using the joint of the positioning concave part 322 and the connecting rod or the pin, so that the precision is higher, the error is smaller, the service life is long, and the problem that the function is deteriorated or even the function is lost due to the fact that the spring piece is deformed in a mode of combining the spring pieces in the prior art is avoided. In order to realize that the connecting rod or the pin slides along the second horizontal line direction along the sliding member 32 and drives the position display mechanism 42 to synchronously slide along the second horizontal line direction, an avoidance groove 121 extending along the second horizontal line direction is formed on the mounting frame 1, specifically, the second mounting frame 12, that is, the avoidance groove 121 is a strip-shaped groove, and the connecting rod or the pin, that is, the second pin, is arranged in the avoidance groove 121 in a penetrating manner and is connected with the position display mechanism 42, so that the position display mechanism 42 can slide along the avoidance groove 121 along the sliding member 32, that is, slide along the second horizontal line direction, thereby playing the role of sliding guide. If the position display mechanism 42 is switched in rotation, the mounting frame 1 is provided with an arc-shaped groove or a circular groove instead of a bar-shaped groove. And in particular not described or defined in detail, will be readily apparent to those skilled in the art.

As shown in fig. 1, for the positioning recess 322, an inverted triangle groove is preferable, and the apex angle of the groove is circular arc-shaped, that is, matches the profile of the first pin, so that better engagement for positioning can be achieved, while also facilitating the sliding of the sliding member 32 in the second horizontal 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 positioning concave parts 322. It should be noted that, in the embodiment of the present utility model, the transmission gear 31 rotates one turn, and the first pin just can come out from one positioning recess 322 to push the sliding member 32 to slide and engage with the latter positioning recess 322, so that the accuracy is high. The number of the positioning concave portions 322 in the figure is three, wherein the positions of the positioning concave portions 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 positioning concave portions 322 corresponding to the position display mechanism 42 are marked as separated positions and connected positions. That is, when the first pin is engaged with any one of the left and right positioning 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 of the middle positioning recess 322, compared with the rotary disc type position display mechanism 42 in the prior art, the positioning of the position display mechanism 42 in the embodiment of the utility model is more reliable, and no bridge passing occurs.

For the first driving member 2, a driving rod extending in the first horizontal direction is provided with driving teeth 21 on an outer surface thereof, which mesh with a transmission gear 31. The transmission ratio of the driving teeth 21 to the transmission gear 31 is 1:2, that is, the teeth of the driving teeth 21 to the teeth on the transmission gear 31 are 1:2, the specific number of teeth is not described and limited, that is, the first driving member 2 rotates for two circles, and the transmission gear 31 rotates for one circle. That is to say the diameter of the first drive member 2 is small, the drive teeth 21 are pinion gears, and the transmission gear 31 is a large gear. By such design, the space occupied by the first driving member 2 in the installation cavity can be reduced, and the sliding member 32 can freely slide back and forth or rotate in the installation cavity more conveniently. In addition, the rotation speed of the output gear can be changed, the sliding or rotating speed of the position display mechanism 42 can be reduced, the positioning of each position mark on the position display mechanism 42 in the positioning process can be controlled more accurately, and the error is smaller.

As shown in fig. 2, the mounting frame 1 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 utility model point, and are known and easily implemented by those skilled in the art.

As shown in fig. 1, a cover plate 43 is disposed on a side of the switch 4 facing away from the transmission mechanism 3, and a display hole 431 for exposing one of the position display marks 421 is formed in the cover plate 43. 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.

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

The switch 4 includes a switch body 41 and a position display mechanism 42 slidably provided in the switch body 41, and is a slide display switch 4. The communication state of the switch 4 when at different position identifiers is not specifically described or defined, and is consistent with the principles of the rotary disc type position display mechanism 42 in the prior art. I.e. in the separated position, the switch 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 switch is communicated.

According to the manual shaking mechanism provided by the embodiment of the utility model, the hand crank is inserted into the operation hole 22 of the first driving piece 2, the first driving piece 2 is driven to rotate around the first horizontal line by the hand crank, and the first driving piece 2 drives the transmission gear 31 to rotate again. At the initial position, the corresponding position displayed in the hole 431 shows the separated position on the mechanism 42. The second driver 311 is now located in the left-hand positioning recess 322 as shown in fig. 1. Illustratively, as shown in fig. 2, the position displayed in the hole 431 shows the connection position on the mechanism 42, with the second driver 311 in the positioning recess 322 on the right. And the first driving member 2 can only rotate counterclockwise but cannot rotate clockwise, i.e., the sliding member 32 can only slide rightward. Similarly, in the disengaged position, the first driving member 2 can only rotate clockwise but cannot rotate counterclockwise, i.e., the sliding member 32 can only slide leftwards. However, in the test position, the first drive element 2 can be rotated either clockwise or counterclockwise, i.e. the slide element 32 can slide either to the left or to the right.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. 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 low-voltage switch cabinet drawer unit is characterized by comprising a mounting frame, a first driving piece and a transmission mechanism, wherein a mounting cavity is formed in the mounting frame; the first driving piece is rotatably arranged on the mounting frame relative to a first horizontal line and is positioned in the mounting cavity under the control of the hand crank; the transmission mechanism is arranged in the mounting cavity and comprises a transmission gear meshed with the driving piece and a movable piece intermittently engaged with the transmission gear, and the movable piece is driven by the rotation of the transmission gear to move in the separation process after being engaged with the transmission gear;

2. The manual swing mechanism of a drawer unit of a low-voltage switch cabinet according to claim 1, further comprising a switch, wherein the sliding member is connected with a position display mechanism in the switch through a linkage member, and the position display mechanism is provided with position display marks for separation, test and connection, and the plurality of positioning concave parts respectively correspond to different position display marks.

3. The manual swing mechanism of a low voltage switchgear drawer unit of claim 2 wherein said linkage is a link or pin provided on said slider and extending in said first horizontal direction toward one side of said switch;

4. A manual swing mechanism for a drawer unit of a low voltage switchgear according to claim 2 or 3, wherein a cover plate is provided on a side of the switch facing away from the transmission mechanism, a display hole is provided on the cover plate for displaying one of the position display marks, and a transparent panel is provided at the display hole.

5. The manual swing mechanism of a low voltage switchgear drawer unit of claim 2 wherein said second drive member is a pin.

6. The manual swing mechanism of a low voltage switchgear drawer unit of claim 5 wherein said detent recess is a triangular recess with rounded corners.

7. The manual swing mechanism of a low voltage switchgear drawer unit according to claim 1 or 2, wherein the first driving member is a driving rod extending along the first horizontal line direction, driving teeth meshed with the transmission gear are arranged on the outer surface of the driving rod, and the transmission ratio of the driving teeth on the driving rod to the transmission gear is 1:2.

8. The manual swing mechanism of a low-voltage switchgear drawer unit according to claim 7, wherein the mounting frame is provided with a hollowed-out portion corresponding to the outer end of the driving rod, and the outer end of the driving rod corresponds to the hollowed-out portion and is provided with an inward-concave operation hole for the operation of the hand crank.

9. The manual swing mechanism of a low voltage switchgear drawer unit of claim 1 wherein the axis of rotation of the first drive member is in a vertical direction from a perpendicular to the axis of rotation of the drive gear.