CN111193215B

CN111193215B - Valve driving mechanism, valve mechanism and handcart linkage mechanism of switch cabinet

Info

Publication number: CN111193215B
Application number: CN202010214222.9A
Authority: CN
Inventors: 朱小强; 唐军; 邱正平
Original assignee: Siemens Switchgear Ltd
Current assignee: Siemens Switchgear Ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2024-03-08
Anticipated expiration: 2040-03-24
Also published as: CN111193215A

Abstract

The valve driving mechanism of the switch cabinet comprises a frame body (80), a first linkage assembly (10) and a second linkage assembly (20). The first linkage assembly comprises a driving shaft (11), a main gear (12), a locking piece (13) and a first driving piece (14). The driving shaft is rotatably connected with the frame body. The main gear is rotatably sleeved on the driving shaft. The locking member is capable of switching between a state in which a first relative position of the drive shaft and the main gear is fixed and a state in which the drive shaft and the main gear are allowed to relatively rotate. The first driving part is fixedly connected with the driving shaft and can drive a valve of the switch cabinet through rotation. The second linkage assembly is rotatably connected to the frame and is meshed with the main gear. The second linkage assembly is capable of driving the other shutter of the switch cabinet by rotation. The valve driving mechanism has compact structure and is beneficial to saving space. In addition, a valve mechanism, a handcart linkage mechanism and a switch cabinet are also provided.

Description

Valve driving mechanism, valve mechanism and handcart linkage mechanism of switch cabinet

Technical Field

The invention relates to a valve driving mechanism of a switch cabinet, in particular to a valve driving mechanism with a compact structure, a valve mechanism comprising the valve driving mechanism and a handcart linkage mechanism.

Background

In the middle-mounted handcart switch cabinet, as a safety protection device for the circuit breaker handcart after being pulled out of a working position, a valve is in standard configuration. The protection device has the advantages that when the circuit breaker handcart is not installed, the electrified static contact inside the cabinet body is shielded, safety protection is carried out, and safety electric shock accidents caused by the fact that an external operator contacts the electrified static contact are prevented. The shutters are typically arranged in pairs and controlled by a shutter drive mechanism. The existing valve driving mechanism usually adopts two-point driving, namely, the structures for driving the two valves are mutually independent, so that the volume of the valve driving mechanism is larger.

Disclosure of Invention

The invention aims to provide a valve driving mechanism of a switch cabinet, which has compact structure and small volume.

Another object of the present invention is to provide a shutter mechanism of a switchgear, which has a compact structure and a small volume.

It is still another object of the present invention to provide a handcart linkage of a switchgear, which has a compact structure and a small size of a shutter driving mechanism.

The invention provides a valve driving mechanism of a switch cabinet, which comprises a frame body, a first linkage assembly and a second linkage assembly. The first linkage assembly includes a drive shaft, a main gear, a locking member, and a first driving member. The driving shaft is rotatably connected with the frame body along the axis of the driving shaft. The main gear is coaxially and rotatably sleeved on the driving shaft. The locking member is capable of switching between a state in which a first relative position of the drive shaft and the main gear is fixed and a state in which the drive shaft and the main gear are allowed to relatively rotate. The first driving part is fixedly connected with the driving shaft and can drive a valve of the switch cabinet by rotating along with the driving shaft. The second linkage assembly is rotatably connected to the frame and is meshed with the main gear. The second linkage assembly is capable of driving the other shutter of the switch cabinet by rotation.

The driving shaft and the main gear of the valve driving mechanism can be switched between linkage and non-linkage states, so that linkage control and independent control of the two valves can be respectively realized. The valve driving mechanism has compact structure and is beneficial to saving space.

In a further exemplary embodiment of the flap drive of the switching cabinet, an adjustment opening is provided in the circumferential surface of the drive shaft. The locking piece is movably arranged in the adjusting hole so as to extend out of the driving shaft and retract into the driving shaft. A matching groove is formed on the side wall of the main gear, which faces the driving shaft. The locking member extending out of the drive shaft is insertable into the mating slot to fix a first relative position of the drive shaft and the main gear. The structure is compact, and is beneficial to saving space.

In a further exemplary embodiment of the flap drive of the switching cabinet, the drive shaft has a central opening extending along its axis. The adjusting hole is communicated with the central hole. The first linkage assembly also includes an adjustment pin. The adjustment pin is movably disposed in the central bore along the axis of the drive shaft for movement between a interlocked position and a disengaged position. The adjustment pin can be moved to push part of the locking member out of the drive shaft or to give way to the locking member to retract the locking member into the drive shaft.

In a further exemplary embodiment of the flap drive of the switching cabinet, the circumferential surface of the adjusting pin is provided with a locking surface, a pushing surface and a relief surface in succession in a first direction parallel to the axis of the drive shaft. The locking surface is a cylindrical surface. The pushing surface is a side surface of the round table. The yielding surface is a cylindrical surface and the diameter is smaller than the locking surface. When the adjusting pin is located at the disengaging position, the adjusting hole corresponds to the yielding surface, and the locking piece can retract into the driving shaft. The pushing surface is capable of pushing the locking member outwardly during movement of the adjustment pin in the first direction from the disengaged position to the engaged position. In the case of the adjustment pin being in the interlocked position, the adjustment hole corresponds to a locking surface which is able to maintain the locking member in a position extending out of the drive shaft by abutment to fix a first relative position of the drive shaft and the main gear. This structure can facilitate the operation.

In a further exemplary embodiment of the shutter drive of the switch cabinet, the locking element is in the form of a sphere, the wall of the mating groove being in the form of an arc extending in the first direction and being gradually closer to the axis of the drive shaft from the bottom end to both sides. The structure is simple and convenient to operate.

In a further exemplary embodiment of the shutter drive of the switch cabinet, the shutter drive further comprises a first elastic element. The first elastic piece applies force to one end of the frame body and one end of the adjusting pin, which penetrates through the driving shaft, so as to apply elastic force to the adjusting pin, wherein the elastic force moves from the linkage position to the separation position. Therefore, the adjusting pin can be automatically reset to the disengaging position, and the operation is simplified.

In a further exemplary embodiment of the shutter drive mechanism of the switchgear, the drive shaft can drive the second linkage assembly via the drive gear with the drive shaft and the drive gear fixed in the first relative position, so as to open and close both shutters of the switchgear simultaneously.

In a further exemplary embodiment of the shutter drive of the switch cabinet, the shutter drive further comprises a second elastic element. The second elastic piece applies force to the frame body and the first driving piece so as to close the two valves of the switch cabinet by driving the first driving piece. Therefore, the first driving piece can be automatically reset, and the operation is simplified.

In a further exemplary embodiment of the shutter drive of the switch cabinet, the shutter drive further comprises a limiting element, which is detachably connected to the adjusting pin. The first driving member is provided with a first locking groove, and the second linkage assembly is provided with a second locking groove. With the adjustment pin in the disengaged position and the first and second linkage assemblies in positions corresponding to the two shutters of the switch cabinet being closed, the limiter inserts into the first and second locking slots to prevent rotation of the first and second linkage assemblies. With the adjustment pin in the interlocked position, the limiter disengages the first and second locking slots. Thereby facilitating the improvement of safety.

In a further exemplary embodiment of the flap drive of the switching cabinet, the first linkage assembly further comprises an actuating element which is fixedly connected to the first drive element and is located on one side of the first drive element in the first direction. Thereby facilitating the operation.

In a further exemplary embodiment of the flap drive of the switching cabinet, the frame body has a side plate arranged perpendicular to the first direction. The first linkage assembly and the second linkage assembly are arranged on one side of the side plate. One end of the adjusting pin, which is close to the locking surface, and the starting piece penetrate out to the other side of the side plate to be used for receiving the abutting of the handcart of the switch cabinet. Thereby avoiding unnecessary damage caused by external impact.

In a further exemplary embodiment of the flap drive of the switching cabinet, the number of adjustment openings is a plurality and is distributed uniformly in the circumferential direction of the drive shaft. The number of the locking pieces is consistent with that of the adjusting holes, and the locking pieces are arranged in the adjusting holes in a one-to-one correspondence manner. Thereby improving stability.

In a further exemplary embodiment of the flap drive of the switching cabinet, the adjustment opening is formed in the radial direction of the drive shaft. Thereby facilitating manufacturing.

In a further exemplary embodiment of the flap drive of the switch cabinet, the second linkage assembly comprises a pinion and a second drive. The pinion is rotatably connected with the frame body and meshed with the main gear, and the axis of the main gear is parallel to that of the pinion. The second driving piece is fixedly connected with the pinion and is used for driving the other valve of the switch cabinet. The structure is simple, and the stability is good.

The invention also provides a valve mechanism of the switch cabinet, which comprises the valve driving mechanism, a first valve and a second valve. The first valve is movably connected with the frame body, and the first driving piece can drive the first valve. The second valve is movably connected with the frame body, and the second linkage assembly can drive the second valve. The driving shaft and the main gear of the valve driving mechanism of the valve mechanism can be switched between linkage and non-linkage states, so that linkage control and independent control of the two valves can be respectively realized. The valve mechanism has compact structure and is beneficial to saving space.

In another exemplary embodiment of the shutter mechanism of the switch cabinet, the shutter mechanism further comprises a first link and a second link. The first connecting rod is rotatably connected with the first driving piece and the first valve, and the first driving piece can drive the first valve to move through the first connecting rod. The second connecting rod is rotatably connected with the second linkage assembly and the second valve, and the second linkage assembly can drive the second valve to move through the second connecting rod. The structure is simple, and the stability is good.

The invention also provides a handcart linkage mechanism of the switch cabinet, which comprises the valve driving mechanism and a driving plate. The driving plate is used for fixing the handcart arranged in the switch cabinet. The cart is movable in a second direction perpendicular to the first direction to an operative position. The driving plate is provided with a maintaining surface and a pushing surface which are arranged continuously along the second direction. The maintaining surface is perpendicular to the first direction, and the pushing surface gradually extends to the opposite direction of the first direction along the second direction. During the movement of the handcart to the working position, the pushing surface can be pushed against one end of the adjusting pin, which is close to the locking surface, so as to push the adjusting pin from the disengaging position to the linkage position, and the maintaining surface can maintain the adjusting pin at the linkage position. The driving shaft and the main gear of the valve driving mechanism of the handcart linkage mechanism can be switched between linkage and non-linkage states, so that linkage control and independent control of two valves can be respectively realized. The handcart linkage mechanism is compact in structure and beneficial to saving space.

In another exemplary embodiment of the handcart linkage of the switch cabinet, the first linkage assembly further comprises an actuating member fixedly connected to the first driving member and located at one side of the first driving member in the first direction. The driving plate is provided with a sliding hole. The slide hole includes a maintaining section and a driving section continuously arranged in the second direction. The sustain segment extends in a second direction. The driving section gradually extends to a third direction along the second direction. The third direction is perpendicular to the second direction and the first direction. In the process of moving the handcart to the working position, the starting piece is inserted into the sliding hole and is pushed by the hole wall of the driving section to rotate, and meanwhile, the first driving piece is driven to rotate so as to open the two valves of the switch cabinet driven by the first driving piece and the second linkage assembly. The wall of the retaining section can bear against the actuator to maintain the two flaps in the open condition. The structure is simple, saves space and has better stability.

The invention also provides a switch cabinet which comprises the valve driving mechanism. The driving shaft and the main gear of the valve driving mechanism can be switched between linkage and non-linkage states, so that linkage control and independent control of the two valves can be respectively realized. The valve driving mechanism has compact structure and is beneficial to saving space.

The invention also provides a switch cabinet which comprises the valve mechanism. The driving shaft and the main gear of the valve driving mechanism can be switched between linkage and non-linkage states, so that linkage control and independent control of the two valves can be respectively realized. The valve driving mechanism has compact structure and is beneficial to saving space.

The invention also provides a switch cabinet which comprises the handcart linkage mechanism. The driving shaft and the main gear of the valve driving mechanism can be switched between linkage and non-linkage states, so that linkage control and independent control of the two valves can be respectively realized. The valve driving mechanism has compact structure and is beneficial to saving space.

Drawings

The following drawings are only illustrative of the invention and do not limit the scope of the invention.

Fig. 1 is a schematic structural view of an exemplary embodiment of a shutter mechanism of a switchgear.

Fig. 2 is a perspective view of an exemplary embodiment of a shutter drive mechanism.

Fig. 3 is an exploded view of a portion of the structure of the first linkage assembly shown in fig. 2.

Fig. 4 is a cross-sectional view of the first linkage assembly shown in fig. 2.

Fig. 5 is a cross-sectional view of the adjustment pin shown in fig. 3.

FIG. 6 shows a cross-sectional view of the first linkage assembly with the adjustment pin in the disengaged position.

Fig. 7 shows a cross-sectional view of the first linkage assembly with the adjustment pin in the linkage position.

Fig. 8 and 9 are perspective views of another angle of the shutter driving mechanism shown in fig. 2.

Fig. 10 is an exploded view of the shutter driving mechanism shown in fig. 2.

Fig. 11 is a schematic structural view for explaining one exemplary embodiment of a handcart linkage of a switchgear.

Fig. 12 and 13 are perspective views of the driving plate shown in fig. 11.

Fig. 14 and 15 are for explaining a moving state of the driving plate.

Description of the reference numerals

100 valve actuating mechanism

80 frame body

81 side plate

82 slide bar

10 first linkage assembly

11 driving shaft

111 adjusting hole

113 center hole

12 main gear

124 mating groove

13 locking piece

14 first driving member

141 first locking groove

15 adjusting pin

151 locking surface

152 push surface

153 abdication surface

16 starter

20 second linkage assembly

22 pinion gears

24 second driving member

241 second locking groove

31 first elastic member

32 second elastic member

40 restriction piece

51 first shutter

52 second shutter

61 first connecting rod

62 second connecting rod

70 driving plate

71 slide hole

712 maintenance section

714 drive section

73 maintenance surface

74 against surface

D1 first direction

D2 second direction

D3 third direction

Axis of L-shaped driving shaft

Detailed Description

For a clearer understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals refer to identical or structurally similar but functionally identical components throughout the separate views.

In this document, "schematic" means "serving as an example, instance, or illustration," and any illustrations, embodiments described herein as "schematic" should not be construed as a more preferred or advantageous solution.

Herein, "first", "second", etc. do not indicate the degree of importance or order thereof, etc., but merely indicate distinction from each other to facilitate description of documents.

For the sake of simplicity of the drawing, the parts relevant to the present invention are shown only schematically in the figures, which do not represent the actual structure thereof as a product.

Fig. 1 is a schematic structural view of an exemplary embodiment of a shutter mechanism of a switchgear. For convenience of description, a first direction D1, a second direction D2, and a third direction D3 are defined, which are perpendicular to each other, for example.

As shown in fig. 1, the shutter mechanism includes two shutter driving mechanisms 100, one first shutter 51, one second shutter 52, two first links 61, and two second links 62. As an exemplary illustration, the two shutter driving mechanisms 100, the two first links 61, and the two second links 62 are each mirror-image disposed on a plane perpendicular to the first direction D1, and the first shutter 51 and the second shutter 52 are disposed up and down. Each shutter driving mechanism 100 drives the first shutter 51 and the second shutter 52 to move in the third direction D3 and the opposite direction thereof through one first link 61 and one second link 62, respectively. The first shutter 51 and the second shutter 52 are shown in fig. 1 in the closed position.

An exemplary embodiment of the shutter drive mechanism is described below with respect to the shutter drive mechanism 100 on the left side in fig. 1. Fig. 2 is a perspective view of the shutter driving mechanism. As shown in fig. 2, the shutter driving mechanism 100 includes a frame 80 (only a partial structure of the frame 80 is shown in fig. 2 for the sake of clarity of the internal structure, and the entire structure thereof can be seen in fig. 1), a first linkage assembly 10, and a second linkage assembly 20.

As shown in fig. 2, the first linkage assembly 10 includes a drive shaft 11, a main gear 12, and a first driving member 14. The driving shaft 11 is rotatably connected to the frame 80 along its own axis L, and the axis L of the driving shaft 11 may be parallel to the first direction D1. The main gear 12 is coaxially and rotatably sleeved on the driving shaft 11. The first driving member 14 is fixedly coupled to the driving shaft 11 and is adapted to be coupled to the first link 61 to drive the first shutter 51 to be opened or closed by rotating with the driving shaft 11.

The second linkage assembly 20 includes a pinion gear 22 and a second drive member 24. The pinion gear 22 is rotatably coupled to the carrier 80 and is meshed with the main gear 12, the main gear 12 being parallel to the axis of the pinion gear 22. The second driving member 24 is fixedly coupled to the pinion gear 22 and is coupled to the second link 62 to drive the second shutter 52 to open or close by rotation.

Fig. 3 is an exploded view of a portion of the structure of the first linkage assembly shown in fig. 2. Fig. 4 is a cross-sectional view of the first linkage assembly shown in fig. 2. As shown in fig. 3 and 4, two adjustment holes 111 (only one of which is visible in fig. 3) are provided on the circumferential surface of the driving shaft 11, and the two adjustment holes 111 are uniformly distributed along the circumferential direction of the driving shaft 11, for example, symmetrically distributed on the circumferential surface of the driving shaft 11 with the axis L. The first linkage assembly 10 also includes two locking members 13. The two locking pieces 13 are provided in one-to-one correspondence to the two adjustment holes 111. Each locking piece 13 is movably provided to the adjustment hole 111 so as to be able to extend out of the drive shaft 11 and retract into the drive shaft 11 (two locking pieces 13 are in a state of being retracted into the drive shaft 11 shown in fig. 4). The locking member 13 can extend out of the driving shaft 11, and a part of the locking member 13 may extend out of the driving shaft 11, for example, protrude from the outer peripheral surface of the driving shaft 11. The side wall of the main gear 12 facing the driving shaft 11 is formed with two fitting grooves 124. Two locking pieces 13 extending outside the driving shaft 11 can be inserted into the two fitting grooves 124 in a one-to-one correspondence to fix one first relative position of the driving shaft 11 and the main gear 12 (i.e., the driving shaft 11 and the main gear 12 shown in fig. 4 are located at the first relative position). Thus, when the driving shaft 11 rotates, the main gear 12 rotates with the rotation, and thus the sub gear 22 is rotated, thereby simultaneously driving the first shutter 51 and the second shutter 52. The purpose of the aforementioned locking member 13 being able to retract into the drive shaft 11 is to disengage the locking member from the engagement groove 124 to release the first relative position of the drive shaft 11 and the main gear 12, i.e. the main gear 12 will not rotate when the drive shaft 11 is rotated.

As shown in fig. 3, the drive shaft 11 also has a central bore 113 extending along its axis L. The adjustment hole 111 communicates with the central hole 113. The first linkage assembly 10 also includes an adjustment pin 15. The adjustment pin 15 is movably disposed in the central bore 113 along the axis L of the drive shaft 11 for movement between a interlocked position and a disengaged position. The adjustment pin 15 in the disengaged position is movable in the first direction D1 to the interlocked position. The adjusting pin 15 can push out part of the locking member 13 from the driving shaft 11 by moving, and as shown in fig. 7, part of the locking member 13 is located outside the driving shaft 11, and the other part 11 is located inside the driving shaft 11. The adjustment pin 15 can likewise be moved out of the way of the locking element 13, so that the locking element 13 is retracted into the drive shaft 11.

Fig. 5 is a cross-sectional view of the adjustment pin. As an exemplary illustration, as shown in fig. 3 and 5, the circumferential surface of the adjustment pin 15 is provided with one locking surface 151, one pushing surface 152 and one yielding surface 153 in succession along the first direction D1. As an exemplary illustration, the locking surface 151 is a cylindrical surface. The pushing surface 152 is a side surface of a circular truncated cone. The relief surface 153 is cylindrical and has a smaller diameter than the locking surface 151. In the present exemplary embodiment, the diameter of the locking surface 151 is equal to the diameter of the center hole 113, but is not limited thereto.

Fig. 6 shows a cross-sectional view of the first linkage assembly with the adjustment pin in the disengaged position, with the drive shaft 11 and the main gear 12 in a first relative position. As shown in fig. 6, with the adjustment pin 15 in the disengaged position, the adjustment hole 111 corresponds to the relief surface 153, and the lock 13 can be retracted into the drive shaft 11. In this case, the locking member 13 is disengaged from the engagement groove 124, so that one first relative position of the driving shaft 11 and the main gear 12 is not fixed, and the main gear 12 is not affected even if the driving shaft 11 rotates, i.e., the driving shaft 11 rotates and does not drive the main gear 12 to rotate, thereby achieving separate control of the first shutter 51 and the second shutter 52. The separate control herein means that the first shutter 51 and the second shutter 52 may be controlled separately, for example, manually, mechanically, electrically, etc., and will not be described herein. The pushing surface 152 can push the locking member 13 to move outward during movement of the adjustment pin 15 in the first direction D1 from the disengaged position to the linked position.

Fig. 7 shows a cross-sectional view of the first linkage assembly with the adjustment pin in the linked position, with the drive shaft 11 and the main gear 12 in a first relative position. As shown in fig. 7, in the case where the adjustment pin 15 is located at the interlocked position, the adjustment hole 111 corresponds to the locking surface 151, and the locking surface 151 is capable of fixing the first relative position of the drive shaft 11 and the main gear 12 by maintaining the locking piece 13 in a position protruding out of the drive shaft 11 and inserted into the engagement groove 124 by abutment. In this case, the rotation of the driving shaft 11 drives the rotation of the driving gear 12, thereby achieving the interlocking control of the first shutter 51 and the second shutter 52.

As shown in fig. 3 and 4, in the present exemplary embodiment, the locking member 13 has a spherical shape, and the groove wall of the mating groove 124 has an arcuate surface that may extend in the first direction D1 and gradually approach the axis L of the driving shaft 11 from the bottom end to both sides. The engagement groove 124 can partially receive the locking member 13, with the other portions of the locking member 13 being located inside the drive shaft 11. Thereby, with the adjustment pin 15 in the disengaged position, the main gear 12 rotating relative to the drive shaft 11 can push the locking piece 13 protruding outside the drive shaft 11 back into the retract drive shaft 11 through the groove wall of the engaging groove 124, thereby disengaging the engaging groove 124.

The above-described structure makes it possible to switch the locking member 13 between a state in which the first relative position of the drive shaft 11 and the main gear 12 is fixed and a state in which the drive shaft 11 and the main gear 12 are allowed to relatively rotate by moving the adjustment pin 15, whereby the operation can be facilitated. However, in other exemplary embodiments, the lock 13 may be switched between a state of fixing the first relative position of the driving shaft 11 and the main gear 12 and a state of allowing the driving shaft 11 and the main gear 12 to relatively rotate by other structures.

The operation of the shutter driving mechanism is exemplified as follows. Initially, the rotational position of the driving shaft 11 corresponds to the state in which the first shutter 51 is closed and the driving shaft 11 and the main gear 12 are located at the first relative position, the rotational position of the second linkage assembly 20 corresponds to the state in which the second shutter 52 is closed, and the adjusting pin 15 is located at the disengaged position, and at this time, the driving shaft 11 and the second linkage assembly 20 can be separately rotated, i.e., separate control of the two shutters is achieved. The adjustment pin 15 is then pushed in a first direction D1 (this action being driven, for example, by a trolley which is being brought into the working position) so that it moves from the disengaged position to the interlocked position, while the locking member 13 is moved by the pushing of the adjustment pin 15 to fix the first relative position of the driving shaft 11 and the main gear 12. The driving shaft 11 is rotated again (this action is driven by, for example, a cart being brought into the working position), and the driving shaft 11 moves the second driving member 24 through the main gear 12 and the sub gear 22 to open the first shutter 51 and the second shutter 52 simultaneously.

In the shutter driving mechanism of the present exemplary embodiment, the driving shaft 11 and the main gear 12 thereof can be switched between the linked and non-linked states, whereby the linkage control and the individual control of the two shutters can be realized, respectively. The valve driving mechanism has compact structure and is beneficial to saving space.

Fig. 8 and 9 are perspective views of another angle of the shutter driving mechanism shown in fig. 2, showing only a partial structure of the frame body 80 for clarity. As shown in fig. 8 and 9, in the exemplary embodiment, the shutter driving mechanism further includes a first elastic member 31. The first elastic member 31 is, for example, a leaf spring, but is not limited thereto. One end of the first elastic member 31 is fixed to the frame 80, and the other end abuts against one end of the adjustment pin 15, which protrudes out of the driving shaft 11, to apply an elastic force to the adjustment pin 15, which moves from the interlocked position to the disengaged position. Wherein the adjustment pin 15 shown in fig. 8 is in the disengaged position and the adjustment pin 15 shown in fig. 9 is in the interlocked position. Whereby the adjusting pin 15 can be automatically reset to the disengaged position, facilitating the simplified operation.

Fig. 10 is an exploded view of the shutter driving mechanism shown in fig. 2. As shown in fig. 8 to 10, in the exemplary embodiment, the shutter drive mechanism further includes a restriction member 40 detachably coupled to the adjustment pin 15. The limiter 40 is an optional assembly component of the shutter drive mechanism. The first driving member 14 is provided with a first locking groove 141, and the second driving member 24 is provided with a second locking groove 241. As shown in fig. 8, in a state where the adjustment pin 15 is located at the disengaged position and the first and second driving members 14 and 20 are located at positions corresponding to the closing of the first and second shutters 51 and 52, the restriction member 40 is inserted into the first and second locking grooves 141 and 241 to prevent the first and second driving members 14 and 20 from rotating. As shown in fig. 9, with the adjustment pin 15 in the interlocked position, the restriction member 40 is disengaged from the first and second locking grooves 141 and 241, and the first and second driving members 14 and 20 are movable. By installing the restriction member 40, the first shutter 51 and the second shutter 52 can be locked in the closed position with the regulating pin 15 located at the disengaged position. If the first shutter 51 and/or the second shutter 52 need to be opened when the adjustment pin 15 is in the disengaged position, the restriction 40 need only be removed. Thereby facilitating the improvement of safety.

In the illustrated embodiment, the shutter drive mechanism further includes a second resilient member 32, as shown in fig. 2. The second elastic member 32 is, for example, an extension spring. One end of the second elastic member 32 is connected to the frame 80, and the other end is connected to the first driving member 14 to drive the first driving member 14 to rotate in a direction of closing the first shutter 51. Thereby, the first driving member 14 can be automatically reset, which is advantageous for simplifying the operation.

As shown in fig. 2, in the illustrated embodiment, the first linkage assembly 10 further includes an actuator 16 fixedly coupled to the first driver 14 and located on one side of the first driver 14 in the first direction D1. The first driver 14 can be driven to rotate by pushing the actuator 16. The pushing is performed, for example, by a trolley of the switchgear when entering the working position. For example, during movement of the cart, the actuator 16 can be pushed to rotate, and the first driver 14 can be rotated.

As shown in fig. 1, in the exemplary embodiment, the frame 80 has a side plate 81 disposed perpendicular to the first direction D1. The first and second linkage assemblies 10 and 20 are disposed at one side of the side plate 81. The end of the adjustment pin 15 close to the locking surface 151 and the actuator 16 each pass out to the other side of the side plate 81 for receiving the abutment of the trolley of the switch cabinet. Thereby avoiding unnecessary damage caused by external impact.

In the present exemplary embodiment, the number of the locking pieces 13 and the number of the adjustment holes 111 are two. But is not limited thereto, in other exemplary embodiments, the locking member 13 and the adjustment hole 111 may be provided in the same other number, for example, one or more than two.

In the present exemplary embodiment, the adjustment hole 111 is opened in the radial direction of the drive shaft 11, but not limited thereto, and in other exemplary embodiments, the adjustment hole 111 may be provided obliquely with respect to the radial direction of the drive shaft 11.

The present invention also provides a shutter mechanism of a switchgear, as shown in fig. 1, which in an exemplary embodiment of the shutter mechanism of the switchgear includes two shutter driving mechanisms 100 shown in fig. 2, one first shutter 51, one second shutter 52, two first links 61, and two second links 62. The two shutter drive mechanisms may be mirror-image arranged with respect to a plane perpendicular to the first direction D1. The first and second shutters 51 and 52 are slidably connected to the slide bars 82 of the frame body 80 in the third direction D3 and the opposite directions thereof. The first link 61 rotatably connects the first driving member 14 and the first shutter 51, and the first driving member 14 can drive the first shutter 51 to move through the first link 61. The second link 62 rotatably connects the second driving member 24 and the second shutter 52, and the second linkage assembly 20 can drive the second shutter 52 to move through the second link 62. The driving shaft 11 and the main gear 12 of the valve driving mechanism can be switched between the linkage state and the non-linkage state, thereby realizing linkage control and independent control of the two valves respectively. The valve mechanism has compact structure and is beneficial to saving space.

In the present exemplary embodiment, the shutter mechanism is provided with two shutter driving mechanisms, so that the movement of the shutter can be made more stable. But is not limited thereto, the number of shutter driving mechanisms may be one in other exemplary embodiments.

The present invention also provides a handcart linkage of a switchgear cabinet, which in one exemplary embodiment thereof includes a shutter drive mechanism 100 and a drive plate 70 as shown in fig. 2. The drive plate 70 is used for fixing a trolley arranged in the switch cabinet. The trolley is movable in a second direction D2 to an operating position. One movement position of the drive plate 70 is shown in fig. 11.

Fig. 12 and 13 are two angular perspective views of the drive plate 70. As shown in fig. 12, the driving plate 70 has one holding surface 73 and one pushing surface 74 that are continuously provided in the second direction D2. The holding surface 73 is perpendicular to the first direction D1, and the pushing surface 74 gradually extends in the second direction D2 in a direction opposite to the first direction D1. During movement of the trolley to the operating position, the abutment surface 74 can abut against an end of the adjustment pin 15 adjacent to the locking surface 151 to urge the adjustment pin 15 from the disengaged position to the interlocked position, and the retaining surface 73 can retain the adjustment pin 15 in the interlocked position.

As shown in fig. 13, the driving plate 70 has a slide hole 71. The slide hole 71 includes a maintaining section 712 and a driving section 714 that are continuously provided in the second direction D2. The sustain section 712 extends in the second direction D2. The driving segment 714 extends gradually in the second direction D2 toward a third direction D3. The third direction D3 is perpendicular to the second direction D2 and the first direction D1. During the movement of the trolley towards the working position, the actuator 16 is inserted into the slide hole 71 and rotates under the thrust of the wall of the driving section 714, simultaneously driving the first driving member 14 to rotate so as to open the two shutters of the switch cabinet driven by the first driving member 14 and the second linkage assembly 20. Since the first shutter 51 and the second shutter 52 are interlocked, the hole wall of the holding section 712 can abut against the actuator 16 to hold both shutters in an open state. The driving plate 70 is provided with: in the course of the movement of the trolley to the working position, the adjusting pin 15 is first pushed to the interlocked position and the actuator 16 is then driven. Fig. 14 shows a state in which the drive plate 70 has pushed the adjustment pin 15 to the linked position but has not driven the actuator 16. Fig. 15 shows a state in which the driving plate 70 has driven the actuator 16 to open the first shutter 51 and the second shutter 52. The driving shaft 11 and the main gear 12 of the valve driving mechanism of the handcart linkage mechanism can be switched between linkage and non-linkage states, thereby realizing linkage control and independent control of the two valves respectively. The handcart linkage mechanism is compact in structure and beneficial to saving space.

The invention also provides a switch cabinet which comprises the valve driving mechanism, the valve mechanism or the handcart linkage mechanism in the schematic embodiment. The driving shaft and the main gear of the valve driving mechanism can be switched between linkage and non-linkage states, so that linkage control and independent control of the two valves can be respectively realized. The valve driving mechanism has compact structure and is beneficial to saving space.

It should be understood that although the present disclosure has been described in terms of various embodiments, not every embodiment is provided with a separate technical solution, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the various embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical examples of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications, such as combinations, divisions or repetitions of features, without departing from the technical spirit of the present invention are included in the scope of the present invention.

Claims

1. Valve actuating mechanism of cubical switchboard, its characterized in that includes:

a frame (80);

a first linkage assembly (10) comprising:

a driving shaft (11) rotatably connected to the frame (80) along its own axis (L),

a main gear (12) coaxially and rotatably sleeved on the driving shaft (11) and connected with the driving shaft (11),

a locking member (13) capable of switching between a state in which a first relative position of the drive shaft (11) and the main gear (12) is fixed and a state in which the drive shaft (11) and the main gear (12) are allowed to rotate relative to each other, and

a first drive element (14) which is fixedly connected to the drive shaft (11) and can drive a flap of the switch cabinet by rotation with the drive shaft (11); and

a second linkage assembly (20) rotatably coupled to said frame (80) and engaged with said main gear (12); the second linkage assembly (20) can drive the other valve of the switch cabinet through rotation.

2. Valve drive mechanism according to claim 1, characterized in that the peripheral surface of the driving shaft (11) is provided with an adjustment hole (111); the locking piece (13) is movably arranged in the adjusting hole (111) so as to extend out of the driving shaft (11) and retract into the driving shaft (11); a matching groove (124) is formed on the side wall of the main gear (12) facing the driving shaft (11); the locking member (13) extending out of the drive shaft (11) is insertable into the mating slot (124) to fix the first relative position of the drive shaft (11) and the main gear (12).

3. Shutter drive mechanism according to claim 2, characterized in that the driving shaft (11) has a central hole (113) extending along its axis (L); the adjusting hole (111) is communicated with the central hole (113); the first linkage assembly (10) further comprises an adjustment pin (15); the adjusting pin (15) is movably arranged in the central hole (113) along the axis (L) of the driving shaft (11) so as to move between a linkage position and a release position, and the adjusting pin (15) can push part of the locking piece (13) out of the driving shaft (11) or be arranged at the locking piece (13) so as to enable the locking piece (13) to retract into the driving shaft (11) through movement.

4. A shutter drive mechanism as claimed in claim 3, characterized in that the circumferential surface of the adjustment pin (15) is provided successively along a first direction (D1) parallel to the axis (L) of the drive shaft (11):

a locking surface (151) which is a cylindrical surface,

a pushing surface (152) which is a side surface of the round table, and

a relief surface (153) which is cylindrical and has a smaller diameter than the locking surface (151);

with the adjustment pin (15) in the disengaged position, the adjustment hole (111) corresponds to the yielding surface (153), the locking element (13) being retractable into the driving shaft (11); -said pushing surface (152) being able to push said locking member (13) outwards during movement of said adjustment pin (15) in said first direction (D1) from said disengaged position to said interlocked position; the adjustment hole (111) corresponds to the locking surface (151) with the adjustment pin (15) in the interlocked position, the locking surface (151) being capable of maintaining the locking member (13) in a position protruding out of the driving shaft (11) by abutment to fix the first relative position of the driving shaft (11) and the main gear (12).

5. Valve driving mechanism according to claim 4, characterized in that the locking member (13) is spherical, and the groove wall of the mating groove (124) is an arc surface extending in the first direction (D1) and gradually approaches the axis (L) of the driving shaft (11) from the bottom end to both sides.

6. A shutter drive mechanism as claimed in claim 3, wherein said shutter drive mechanism further comprises a first elastic member (31); the first elastic member (31) applies force to one end of the frame body (80) and one end of the adjusting pin (15) penetrating out of the driving shaft (11) so as to apply elastic force to the adjusting pin (15) from the linkage position to the separation position.

7. A shutter drive mechanism according to claim 3, wherein the drive shaft (11) is capable of driving the second linkage assembly (20) through the drive gear (12) to simultaneously open and simultaneously close both shutters of the switch cabinet with the drive shaft (11) and the drive gear (12) fixed in the first relative position.

8. A shutter drive mechanism as claimed in claim 1, wherein said shutter drive mechanism further comprises a second resilient member (32); the second elastic member (32) applies force to the frame body (80) and the first driving member (14) to close two shutters of the switch cabinet by driving the first driving member (14).

9. Shutter drive mechanism according to claim 7, characterized in that it further comprises a limiting member (40) removably associated with said adjustment pin (15); the first driving piece (14) is provided with a first locking groove (141), and the second linkage assembly (20) is provided with a second locking groove (241); with the adjustment pin (15) in the disengaged position and the first driver (14) and the second linkage assembly (20) in positions corresponding to the closing of the two shutters of the switch cabinet, the limiter (40) is inserted into the first locking slot (141) and the second locking slot (241) to prevent the first driver (14) and the second linkage assembly (20) from rotating; with the adjustment pin (15) in the interlocked position, the limiter (40) disengages the first locking groove (141) and the second locking groove (241).

10. Valve driving mechanism according to claim 4, wherein the first linkage assembly (10) further comprises an actuator (16) fixedly connected to the first driving member (14) and located at one side of the first driving member (14) in the first direction (D1).

11. Shutter drive mechanism according to claim 10, characterized in that said frame (80) has a side plate (81) arranged perpendicular to said first direction (D1); the first linkage assembly (10) and the second linkage assembly (20) are arranged on one side of the side plate (81); one end of the adjusting pin (15) close to the locking surface (151) and the starting piece (16) penetrate out to the other side of the side plate (81) for receiving the abutment of a handcart of the switch cabinet.

12. Shutter drive mechanism according to claim 2, characterized in that the number of the adjustment holes (111) is plural and uniformly distributed along the circumferential direction of the drive shaft (11); the number of the locking pieces (13) is consistent with that of the adjusting holes (111), and the locking pieces (13) are arranged in a plurality of the adjusting holes (111) in a one-to-one correspondence mode.

13. A shutter drive mechanism as claimed in claim 3, wherein the adjustment hole (111) is open in a radial direction of the drive shaft (11).

14. Shutter drive mechanism according to claim 1, characterized in that the second linkage assembly (20) comprises:

-a pinion (22) rotatably connected to said frame (80) and meshing with said main gear (12), said main gear (12) being parallel to the axis of said pinion (22); and

a second drive element (24) which is fixedly connected to the pinion (22) and is used for driving the other flap of the switch cabinet.

15. Valve mechanism of cubical switchboard, its characterized in that includes:

a shutter drive mechanism as claimed in any one of claims 1 to 14;

a first shutter (51) movably connected to the frame (80), the first driving member (14) being capable of driving the first shutter (51); and

a second shutter (52) movably connected to the frame (80), the second linkage assembly (20) being capable of driving the second shutter (52).

16. The shutter mechanism as claimed in claim 15, wherein said shutter mechanism further comprises:

a first link (61) rotatably connecting the first driving member (14) and the first shutter (51), the first driving member (14) being capable of driving the first shutter (51) to move through the first link (61); and

a second link (62) rotatably connecting the second linkage assembly (20) and the second shutter (52), the second linkage assembly (20) being capable of driving the second shutter (52) to move by the second link (62).

17. Handcart link gear of cubical switchboard, its characterized in that includes:

a shutter drive mechanism as claimed in any one of claims 4 to 12; and

a drive plate (70) for securing a trolley arranged on the switch cabinet; the trolley is movable to an operating position along a second direction (D2) perpendicular to a first direction (D1), the first direction (D1) being parallel to the axis (L) of the drive shaft (11); the driving plate (70) has a holding surface (73) and a pushing surface (74) arranged continuously along the second direction (D2); the maintaining surface (73) is perpendicular to the first direction (D1), and the pushing surface (74) gradually extends to the opposite direction of the first direction (D1) along the second direction (D2); during movement of the trolley to the working position, the abutment surface (74) can abut against an end of an adjusting pin (15) adjacent to a locking surface (151) to urge the adjusting pin (15) from a disengaged position to a linked position, and the maintaining surface (73) can maintain the adjusting pin (15) in the linked position.

18. The handcart linkage according to claim 17, characterized in that said first linkage assembly (10) further comprises an actuating member (16) fixedly connected to said first driving member (14) and located on one side of said first driving member (14) in said first direction (D1); the drive plate (70) has a slide hole (71), the slide hole (71) including a holding section (712) and a drive section (714) arranged continuously along the second direction (D2); -the maintenance segment (712) extends along the second direction (D2); -said driving section (714) extends gradually along said second direction (D2) towards a third direction (D3), said third direction (D3) being perpendicular to said second direction (D2) and to said first direction (D1); during the movement of the handcart to the working position, the starting piece (16) is inserted into the sliding hole (71) and rotates under the pushing of the hole wall of the driving section (714), and simultaneously drives the first driving piece (14) to rotate so as to open the two valves of the switch cabinet driven by the first driving piece (14) and the second linkage assembly (20); the walls of the retaining section (712) can bear against the actuator (16) to retain the two flaps in the open condition.

19. A switchgear cabinet comprising a shutter drive mechanism according to any of claims 1-14.

20. A switchgear characterized in that it comprises a shutter mechanism of the switchgear according to claim 15 or 16.

21. A switchgear characterized by comprising a handcart linkage of the switchgear of claim 17 or 18.