Unbuckling structure of free tripping mechanism and rotary switch

Abstract

The utility model provides an unlocking structure of a free tripping mechanism and a rotary switch, which belong to the technical field of rotary switches, and comprise an upper rotating shaft, a middle rotating disc, a torsion spring rotating seat, an energy storage torsion spring, an unlocking sheet, an unlocking tension spring, a locking sheet and a locking torsion spring, the locking piece further comprises a second linkage end, the unlocking piece comprises an unlocking end and a touch end, an unlocking rod is arranged on the torsion spring rotating seat, and when the unlocking rod rotates along with the torsion spring rotating seat to collide with the touch end, the unlocking rod is driven by the first linkage end to rotate to enable the middle rotating disc to synchronously rotate along with the upper rotating shaft. The releasing end is in linkage fit with the second linkage end, so that the linkage fit between the first linkage end and the linkage part is released; according to the utility model, the structure required for realizing tripping and tripping functions is simplified, and the assembly difficulty and the fault probability of the rotary switch are reduced, so that the rotary switch has better stability and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary switches, in particular to a release structure of a free tripping mechanism and a rotary switch. Background Art

[0002] A rotary switch is a switch that controls the on and off of the main contacts by rotating the handle. There are also two structural forms of rotary switches, namely single-pole single-position structure and multi-pole multi-position structure. Single-pole single-position rotary switches are often used together with shaft potentiometers in applications, while multi-pole multi-position rotary switches are mostly used to switch working status circuits.

[0003] The patent with publication number CN215933454U previously applied by the applicant discloses a rotary switch that can be quickly cut off. The structure required to realize the tripping and unbuttoning functions in the rotary switch is complicated, which increases the difficulty of assembling the rotary switch and the probability of mechanism failure. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a release structure of a free tripping mechanism and a rotary switch.

[0005] The technical solution adopted by the utility model is as follows: a release structure of a free tripping mechanism, comprising an upper rotating shaft, a middle rotating disk, a torsion spring rotating seat, an energy storage torsion spring, a release piece and a release tension spring, wherein the upper rotating shaft is rotatably arranged relative to the middle rotating disk, and the energy storage torsion spring is arranged between the torsion spring rotating seat and the middle rotating disk;

[0006] A locking piece is hinged on the middle turntable, a locking torsion spring is arranged between the locking piece and the middle turntable, the upper rotating shaft includes a linkage part, the locking piece includes a first linkage end located on the rotation path of the linkage part, under the action of the locking torsion spring, the linkage part can be rotated to form a linkage with the first linkage end so that the middle turntable rotates synchronously with the upper rotating shaft;

[0007] When the middle rotating disk rotates synchronously with the upper rotating shaft, the energy storage torsion spring stores energy;

[0008] The locking piece also includes a second linkage end. The release piece is hinged to the periphery of the middle rotating disk, and includes a release end, a touch end and a connection end. The connection end is connected to the release tension spring. A release rod is provided on the torsion spring rotating seat. The touch end is located on the rotation path of the release rod. When the release rod follows the rotation of the torsion spring rotating seat to hit the touch end, the release end cooperates with the second linkage end so that the first linkage end and the linkage part are released from linkage cooperation.

[0009] When the energy storage torsion spring releases energy, the middle rotating disk and the torsion spring rotating seat are reset, and the upper rotating shaft remains stationary.

[0010] The linkage part is a linkage groove arranged on the upper rotating shaft, and the linkage groove includes an abutting end surface abutting against the first linkage end and a limiting end surface located above the first linkage end.

[0011] The first linkage end is provided with a first arc surface facing the abutting end surface.

[0012] A second arc-shaped surface is arranged on one side of the release end facing the touch end, and a third arc-shaped surface is arranged on the other side thereof, and a radius of the second arc-shaped surface is greater than a radius of the third arc-shaped surface.

[0013] The upper rotating shaft includes a disc portion close to one end of the middle rotating disk, the middle rotating disk is provided with a socket, the outer periphery of the socket is provided with a rotation limiting groove, and the disc portion is provided with a plug column matched with the socket and a protrusion matched with the rotation limiting groove facing the middle rotating disk.

[0014] The rotary switch comprises a shell and an operating device, wherein the operating device comprises a tripping structure of the free tripping mechanism, the upper rotating shaft can rotate so that the operating device has a closed state and an open state, and when the operating device switches from the open state to the closed state, the energy storage torsion spring stores energy.

[0015] A first limit block is arranged on the shell, and a first turntable limit block and a second turntable limit block are arranged on the outer peripheral wall of the middle turntable. The first limit block includes a first rotation limit end face located on the rotation path of the first turntable limit block and a second rotation limit end face located on the rotation path of the second turntable limit block.

[0016] The touch end is formed by a tripping piece extending toward the torsion spring rotating seat close to the side of the tripping rod, and an arc-shaped limiting groove is provided on the shell. The touch end extends into the arc-shaped limiting groove and slides with it. The tripping piece is hinged on the shell, and one end of the tripping tension spring is connected to the shell, and the other end is connected to the connecting end.

[0017] The operating device also includes a rotating shaft seat, which is plugged into the middle turntable and rotates synchronously. The rotating shaft seat is rotatably arranged relative to the torsion spring rotating seat. An unlocking push block and a driving arm are arranged on the rotating shaft seat, and the driving arm cooperates with the energy storage torsion spring.

[0018] The operating device also includes a stopping mechanism, which includes a stopping piece and a metal gasket. The stopping mechanism is used to lock the torsion spring swivel seat when the operating device is in an open state and a closed state, and the torsion spring swivel seat remains inactive. The upper rotating shaft is rotated from the open state position to the closed state position so that the energy storage torsion spring completes energy storage, and the stopping mechanism releases the lock on the torsion spring swivel seat, and the torsion spring swivel seat rotates under the action of the energy storage torsion spring.

[0019] The beneficial effects of the utility model are as follows: the utility model simplifies the structure required for realizing the tripping and unbuttoning functions, reduces the assembly difficulty and failure probability of the rotary switch, and makes the rotary switch have better stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0021] Figure 1 For the first embodiment Figure 1 ;

[0022] Figure 2 For the first embodiment Figure 2 ;

[0023] Figure 3 is a schematic diagram of the upper rotating shaft in the first embodiment;

[0024] Figure 4 It is a schematic diagram of the locking piece, the locking torsion spring and the middle rotating disk in the first embodiment;

[0025] Figure 5 For the first embodiment Figure 3 ;

[0026] Figure 6 Schematic diagram of the operating device in Example 2 Figure 1 ;

[0027] Figure 7 Schematic diagram of the operating device in Example 2 Figure 2 ;

[0028] Figure 8 It is an exploded view of the operating device in the second embodiment (the housing is omitted). DETAILED DESCRIPTION

[0029] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0030] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "plurality" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the description of this application, it should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0033] Embodiment 1:

[0034] like Figures 1 to 5As shown, a release structure of a free tripping mechanism includes an upper rotating shaft 1, a middle rotating disk 2, a torsion spring rotating seat 3, an energy storage torsion spring 4, a release piece 5 and a release tension spring 6, wherein the upper rotating shaft 1 is rotatably arranged relative to the middle rotating disk 2, and the energy storage torsion spring 4 is arranged between the torsion spring rotating seat 3 and the middle rotating disk 2; a locking piece 7 is hinged on the middle rotating disk 2, and a locking torsion spring 8 is arranged between the locking piece 7 and the middle rotating disk 2, the upper rotating shaft 1 includes a linkage part 101, and the locking piece 7 includes a first linkage end 71 located on the rotation path of the linkage part 101, under the action of the locking torsion spring 8, the linkage part 101 can be rotated to form a linkage with the first linkage end 71 so that the middle rotating disk 2 rotates synchronously with the upper rotating shaft 1; when the middle rotating disk 2 follows the upper rotating shaft 1 During synchronous rotation, the energy storage torsion spring 4 stores energy; the locking piece 7 also includes a second linkage end 72, the release piece 5 is hinged to the periphery of the middle turntable 2, and includes a release end 51, a touch end 52 and a connection end 53, the connection end 53 is connected to the release tension spring 6, and a release rod 31 is provided on the torsion spring swivel seat 3, and the touch end 52 is located on the rotation path of the release rod 31, when the release rod 31 follows the rotation of the torsion spring swivel seat 3 to hit the touch end 52, the release end 51 and the second linkage end 72 are linked to cooperate so that the first linkage end 71 and the linkage part 101 are released from the linkage cooperation, and when the energy storage torsion spring 4 releases energy, the middle turntable 2 and the torsion spring swivel seat 3 are reset, and the upper rotating shaft 1 remains stationary.

[0035] Through the above arrangement, compared with the patent with publication number CN215933454U previously applied by the applicant, a rotary switch that can be quickly cut off is disclosed, which simplifies the structure required to realize the tripping and unlatching functions, reduces the assembly difficulty and failure probability of the rotary switch, and makes the rotary switch have better stability and reliability.

[0036] Furthermore, the linkage portion 101 is a linkage groove 102 arranged on the upper rotating shaft 1, and the linkage groove 102 includes an abutting end face 1021 abutting against the first linkage end 71 and a limiting end face 1022 located above the first linkage end 71, so that the first linkage end 71 and the linkage groove 102 are abutted to form a more stable locking state, ensuring that the middle turntable 2 rotates synchronously with the upper rotating shaft 1.

[0037] Furthermore, the first linkage end 71 is provided with a first arcuate surface 711 toward the abutting end surface 1021, and the abutting end surface 1021 is provided with an arcuate mating surface on the side away from the center of the upper rotating shaft 1, and the arcuate surface makes it easier for the first linkage end 71 and the linkage groove 102 to form locking and contact locking.

[0038] Furthermore, the release end 51 is provided with a second arc surface 511 on one side facing the touch end 52, and a third arc surface 512 on the other side. The radius of the second arc surface 511 is greater than the radius of the third arc surface 512, so as to avoid accidental unlocking when the second linkage end 72 turns to the touch end 52. Instead, when the release rod 31 follows the rotation of the torsion spring rotating seat 3 to hit the touch end 52, the release end 51 hits the second linkage end 72, so that the first linkage end 71 is separated from the linkage groove 102, and unlocking is achieved, i.e., release. Secondly, it also ensures that the middle turntable 2 is smoothly reset when the energy storage torsion spring 4 releases energy.

[0039] Furthermore, the upper rotating shaft 1 includes a disc portion 103 near one end of the middle rotating disk 2, the middle rotating disk 2 is provided with a plug hole 21, and the outer periphery of the plug hole 21 is provided with a rotation limiting groove 22. In this embodiment, there are two rotation limiting grooves 22, and they are symmetrically arranged with the plug hole 21 as the center. The disc portion 103 is provided with a plug column 104 adapted to the plug hole 21 and a convex block 105 adapted to the rotation limiting groove 22 toward the middle rotating disk 2, so as to limit the rotation range of the upper rotating shaft 1 relative to the middle rotating disk 2 and ensure that the upper rotating shaft 1 is in the correct direction when rotating. Among them, the plug hole 21 and the plug column 104 are adapted cylindrical shapes.

[0040] Embodiment 2:

[0041] like Figures 6 to 8 As shown, based on the embodiment 1 and the patent with publication number CN215933454U previously applied by the applicant, a rotary switch that can be quickly cut off is proposed, including a shell 9 and an operating device, the operating device includes a tripping structure of the free tripping mechanism, and the upper rotating shaft 1 can be rotated so that the operating device has a closed state and a disconnected state.

[0042] When the operating device is in the disconnected state, the locking piece 7 is acted upon by the locking torsion spring 8 so that one end thereof presses against the upper rotating shaft 1, that is, the first linkage end 71 abuts against the linkage groove 102. At this time, a rotational torque is applied to the upper rotating shaft 1, and the middle turntable 2 rotates together with the upper rotating shaft 1.

[0043] When the operating device switches from the open state to the closed state, that is, when the switch is closed, the energy storage torsion spring 4 stores energy. At the same time, the torsion spring rotating seat 3 hits the tripping plate 5 through its upper tripping rod 31 and drives the locking plate 7 to break away from the contact with the upper rotating shaft 1, completing the tripping action.

[0044] When the rotary switch performs a tripping action in the unfastened state, the middle rotating disk 2 and the following structures rotate along with the energy storage torsion spring 4, while the upper rotating shaft 1 remains stationary due to the tripping contact with the middle rotating disk 2, completing the free tripping action.

[0045] Among them, the opening and closing and tripping action principles can refer to a rotary switch that can be quickly cut off disclosed in the patent with announcement number CN215933454U previously applied by the applicant.

[0046] Furthermore, a first limit block 91 is provided on the shell 9, and a first turntable limit block 23 and a second turntable limit block 24 are provided on the outer peripheral wall of the middle turntable 2. The first limit block 91 includes a first rotation limit end face 911 located on the rotation path of the first turntable limit block 23 and a second rotation limit end face 912 located on the rotation path of the second turntable limit block 24, which effectively limits the rotation range of the middle turntable 2 and ensures the stable realization of the free release and unfastening functions of the rotary switch.

[0047] Furthermore, the touch end 52 is formed by the tripping piece 5 extending toward the torsion spring swivel seat 3 on one side of the tripping rod 31, and an arc-shaped limit groove 92 is provided on the shell 9, and the touch end 52 extends into the arc-shaped limit groove 92 and slides therewith. The tripping piece 5 is hinged to the shell 9, and one end of the tripping tension spring 6 is connected to the shell 9, and the other end is connected to the connecting end 53. In this embodiment, the tripping piece 5 is hinged to the shell 9 by bolts, and the arc-shaped limit groove 92 makes the tripping piece 5 more stable when rotating. At the same time, the touch end 52 extending downward of the tripping piece 5 makes full use of the longitudinal space in the shell 9, and is conducive to cooperating with the tripping rod 31 on the torsion spring swivel seat 3.

[0048] The operating device also includes a rotating shaft seat 10, which is plugged into the middle turntable 2 and rotates synchronously. The rotating shaft seat 10 is rotatably arranged relative to the torsion spring rotating seat 3. An unlocking push block 1001 and a driving arm 1002 are arranged on the rotating shaft seat 10. The driving arm 1002 cooperates with the energy storage torsion spring 4. This structure is an adaptability adjustment of a rotary switch that can be quickly cut off based on the patent application number CN215933454U previously applied by the applicant, so that it can realize the free tripping and unbuttoning functions.

[0049] The operating device further includes a stop mechanism 11, which includes a stopper 111 and a metal gasket 112. The stop mechanism 11 is used to lock the torsion spring swivel 3 when the operating device is in the disconnected state and in the closed state, and the torsion spring swivel 3 remains inactive. The upper rotating shaft 1 is rotated from the disconnected state to the closed state so that the energy storage torsion spring 4 completes energy storage, and the stop mechanism 11 releases the lock on the torsion spring swivel 3, and the torsion spring swivel 3 rotates under the action of the energy storage torsion spring 4. The specific structure and principle of the stop mechanism 11 can refer to the patent application number CN216528567U previously applied by the applicant, which discloses a stop device and a rotary switch for a rotary switch operating mechanism.

[0050] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A free tripping mechanism release structure, characterized in that: The utility model comprises an upper rotating shaft (1), a middle rotating disk (2), a torsion spring rotating seat (3), an energy storage torsion spring (4), a release plate (5) and a release tension spring (6), wherein the upper rotating shaft (1) is rotatably arranged relative to the middle rotating disk (2), and the energy storage torsion spring (4) is arranged between the torsion spring rotating seat (3) and the middle rotating disk (2); A locking plate (7) is hingedly connected to the middle rotating disk (2), a locking torsion spring (8) is arranged between the locking plate (7) and the middle rotating disk (2), the upper rotating shaft (1) comprises a linkage part (101), the locking plate (7) comprises a first linkage end (71) located on the rotation path of the linkage part (101), under the action of the locking torsion spring (8), the linkage part (101) can rotate to form a linkage with the first linkage end (71) so that the middle rotating disk (2) rotates synchronously with the upper rotating shaft (1); When the middle rotating disk (2) rotates synchronously with the upper rotating shaft (1), the energy storage torsion spring (4) stores energy; The locking piece (7) also includes a second linkage end (72). The unlocking piece (5) is hinged to the periphery of the middle rotating disk (2), and includes an unlocking end (51), a touch end (52) and a connecting end (53). The connecting end (53) is connected to the unlocking tension spring (6). A unlocking rod (31) is provided on the torsion spring rotating seat (3). The touch end (52) is located on the rotation path of the unlocking rod (31). When the unlocking rod (31) rotates with the torsion spring rotating seat (3) to hit the touch end (52), the unlocking end (51) and the second linkage end (72) are linked to each other so that the first linkage end (71) and the linkage part (101) are released from the linkage. When the energy storage torsion spring (4) releases energy, the middle rotating disk (2) and the torsion spring rotating seat (3) are reset, and the upper rotating shaft (1) remains stationary.

2. A release structure of a free tripping mechanism according to claim 1, characterized in that: The linkage portion (101) is a linkage groove (102) arranged on the upper rotating shaft (1), and the linkage groove (102) comprises an abutting end surface (1021) abutting against the first linkage end (71) and a limiting end surface (1022) located above the first linkage end (71).

3. A release structure of a free tripping mechanism according to claim 2, characterized in that: The first linkage end (71) is provided with a first arcuate surface (711) facing the abutting end surface (1021).

4. The release structure of the free tripping mechanism according to claim 1, characterized in that: A second arcuate surface (511) is provided on one side of the release end (51) facing the touch end (52), and a third arcuate surface (512) is provided on the other side thereof, wherein the radius of the second arcuate surface (511) is greater than the radius of the third arcuate surface (512).

5. The release structure of the free tripping mechanism according to claim 1, characterized in that: The upper rotating shaft (1) comprises a disc portion (103) close to one end of the middle rotating disk (2); the middle rotating disk (2) is provided with a plug hole (21); the outer periphery of the plug hole (21) is provided with a rotation limiting groove (22); the disc portion (103) is provided with a plug column (104) adapted to the plug hole (21) and a protrusion (105) adapted to the rotation limiting groove (22) facing the middle rotating disk (2).

6. A rotary switch comprising a housing (9) and an operating device, wherein the operating device comprises a tripping structure of a free tripping mechanism according to any one of claims 1 to 5, characterized in that: The upper rotating shaft (1) can rotate so that the operating device has a closed state and an open state. When the operating device switches from the open state to the closed state, the energy storage torsion spring (4) stores energy.

7. The rotary switch according to claim 6, characterized in that: The shell (9) is provided with a first limit block (91), the outer peripheral wall of the middle turntable (2) is provided with a first turntable limit block (23) and a second turntable limit block (24), the first limit block (91) comprising a first rotation limit end face (911) located on the rotation path of the first turntable limit block (23) and a second rotation limit end face (912) located on the rotation path of the second turntable limit block (24).

8. The rotary switch according to claim 6 or 7, characterized in that: The touch end (52) is formed by the release plate (5) extending toward the torsion spring rotating seat (3) from one side close to the release rod (31); an arc-shaped limit groove (92) is provided on the shell (9); the touch end (52) extends into the arc-shaped limit groove (92) and slides with the arc-shaped limit groove (92); the release plate (5) is hinged on the shell (9); one end of the release tension spring (6) is connected to the shell (9), and the other end is connected to the connecting end (53).

9. The rotary switch according to claim 6, characterized in that: The operating device also includes a rotating shaft seat (10), the rotating shaft seat (10) is plugged into the middle rotating disk (2) and rotates synchronously, the rotating shaft seat (10) is rotatably arranged relative to the torsion spring rotating seat (3), and an unlocking push block (1001) and a driving arm (1002) are arranged on the rotating shaft seat (10), and the driving arm (1002) cooperates with the energy storage torsion spring (4).

10. The rotary switch according to claim 6 or 9, characterized in that: The operating device further comprises a stop mechanism (11), the stop mechanism (11) comprising a stopper (111) and a metal gasket (112). The stop mechanism (11) is used for locking the torsion spring swivel seat (3) when the operating device is in an open state and a closed state, and keeping the torsion spring swivel seat (3) inactive. The upper rotating shaft (1) is rotated from the open state to the closed state so that the energy storage torsion spring (4) completes energy storage, and the stop mechanism (11) releases the lock on the torsion spring swivel seat (3), and the torsion spring swivel seat (3) rotates under the action of the energy storage torsion spring (4).

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