Spring-based operating lever reset mechanism

Abstract

This utility model belongs to the field of operating handle technology, specifically relating to a spring-based operating lever reset mechanism, comprising: a spring plate having a fixed part and a free part, the fixed part being fixedly mounted on a fixing member, and one side surface of the free part serving as a reset working surface; a stop part being fixedly mounted on the fixing member, the stop part abutting against the reset working surface and applying preload to the reset working surface; and an operating lever, which is oscillating and directly or through the reset part abutting against the reset working surface. When the operating lever is driven to oscillate in the oscillation direction, the operating lever directly or through the reset part compresses the spring plate, and the operating lever or reset part on the side away from the oscillation direction separates from the spring plate. When the operating lever is released, the operating lever or reset part resets under the action of the spring plate. The reset mechanism of this utility model, using a spring plate, significantly reduces the overall volume compared to the design of two compression springs. When applied to industrial operating handles, this reset mechanism also greatly reduces the overall volume of the industrial operating handle.

Description

Technical Field

[0001] This utility model belongs to the field of operating handle technology, specifically relating to an operating lever reset mechanism based on a spring plate. Background Technology

[0002] Industrial operating handles are devices that convert mechanical motion into electronic signals, widely used in engineering vehicles, industrial remote controls, medical equipment, and other fields. Their basic principle is to transmit and control signals through a circuit triggered by the handle's movement. Industrial operating handles include single-axis swing, dual-axis swing, and omnidirectional circular swing designs to support multi-directional operation and offer high flexibility. During the swinging process, precise angle measurement is achieved using detection tools such as potentiometers or Hall sensors. Industrial operating handles typically employ a spring-loaded reset mechanism so that the handle automatically returns to the center position after being released.

[0003] In existing technologies, the reset mechanism of industrial operating handles typically employs, for example... Figure 1 In the structure shown, when the rocker arm 91 is in the neutral position, it is reset (neutral position) by the action of two symmetrical springs 92 and the slider 93. The springs 92 are limited by the guide pin 94. Under the action of the rotating shaft 95, when the rocker arm 91 swings around the axis of the rotating shaft 95, the slider 93 applies pressure to one side of the spring 92 through the guide pin 94 and moves away from the other side of the spring 92. When the rocker arm 91 is released, the spring 92 resets the rocker arm 91. Figure 1 The reset mechanism uses a compression spring (92), which has a complex structure, leading to complex production and assembly. Furthermore, to ensure a large reset force, a larger spring needs to be selected, requiring a larger spring diameter and / or axial length, resulting in a larger overall size for the reset mechanism and ultimately a larger industrial operating handle. Additionally, Figure 1 The reset mechanism is also not suitable for matching with other rotating mechanisms to achieve dual-axis oscillation. Utility Model Content

[0004] This invention addresses the technical problem that existing industrial operating handles typically use compression springs to achieve handle reset, which results in complex structures and large volumes. The aim is to provide an operating lever reset mechanism based on a spring plate.

[0005] To solve the aforementioned technical problems, this utility model provides a spring-plate-based operating lever reset mechanism, which includes:

[0006] A spring sheet having a fixed part and a free part, wherein the fixed part is fixedly installed on a fixing member, and one side surface of the free part serves as a reset working surface;

[0007] The stop part is fixedly installed on the fixing member, and the stop part abuts against the reset working surface of the free part and applies pre-pressure to the reset working surface;

[0008] An operating lever is swayable, and a spring plate is provided in the swaying direction of the operating lever. The operating lever directly or through a reset part abuts against the reset working surface.

[0009] When the operating lever is driven to swing in the swing direction, the operating lever directly or through the reset part squeezes the spring plate, and the operating lever or the reset part on the side away from the swing direction separates from the spring plate. When the operating lever is released, the operating lever or the reset part resets under the action of the spring plate.

[0010] Optionally, in the spring-based operating lever reset mechanism as described above, the operating lever can reciprocate about one axis or two mutually perpendicular axes;

[0011] In the direction in which the operating lever reciprocates about any axis, there are two spring plates, which are arranged side by side on the side of the operating lever and the stop.

[0012] Optionally, in the spring-plate-based operating lever reset mechanism as described above, in the direction of the reciprocating swing of the operating lever about any axis, the fixed portions of the two spring plates are connected together to form an integral spring plate, or an integral spring plate is used instead of the two spring plates, the integral spring plate having the fixed portion and the free portions located at both ends of the fixed portion.

[0013] Optionally, in the spring-plate-based operating lever reset mechanism as described above, when the operating lever can reciprocate around an axis, the stop part adopts a limiting block, and the two spring plates in the reciprocating swing direction of the operating lever around the axis share the same limiting block.

[0014] Optionally, in the spring-plate-based operating lever reset mechanism as described above, the limiting block is provided on one side or two pairs of sides of the operating lever.

[0015] Optionally, in the spring-plate-based operating lever reset mechanism as described above, in the initial state or after the operating lever is reset, the side of the operating lever near the spring plate and the side of the stop portion are flush.

[0016] Optionally, in the spring-plate-based operating lever reset mechanism as described above, when the operating lever can reciprocate around two mutually perpendicular axes, two integral spring plates and two reset parts are provided along both axes, with the two integral spring plates and two reset parts located on both sides of the operating lever along the same axis.

[0017] Optionally, in the spring-based operating lever reset mechanism as described above, the four integrated spring sheets form a rectangular structure, the stop portion adopts a limiting block, the four limiting blocks are respectively located at the four corners of the rectangular structure, and the two ends of one limiting block respectively abut against two adjacent free portions on two adjacent integrated spring sheets.

[0018] Optionally, in the spring-plate-based operating lever reset mechanism as described above, the free part adopts a bent structure, the bending angle of the free part faces away from the operating lever and the stop part, and the bending angle of the free part abuts against the stop part and the operating lever respectively.

[0019] Optionally, in the spring-based operating lever reset mechanism as described above, a roller is provided on the contact surface where the free part abuts against the operating lever or the reset part. The roller rotates around the axis and is disposed on the free part, the operating lever, or the reset part.

[0020] Optionally, in the spring-plate-based operating lever reset mechanism as described above, the two free portions of the operating lever in the direction of reciprocating swing about any axis are symmetrically arranged with an axis of symmetry perpendicular to the axis.

[0021] Optionally, in the spring-plate-based operating lever reset mechanism as described above, the spring plate has a sheet-like structure, and the operating lever abuts against the free part through the reset part;

[0022] The reset part is fixed or abutted against the operating lever. The reset part has two abutting parts, and the two abutting parts abut against a corresponding free part.

[0023] Optionally, in the spring-plate-based operating lever reset mechanism as described above, the middle part of the reset part is fixed or abuts against the operating lever, and the two sides of the reset part have abutting portions protruding toward the free part.

[0024] Optionally, in the spring-plate-based operating lever reset mechanism as described above, the operating lever can swing 360 degrees around a point, the spring plate has a ring structure, the radial outer side of the spring plate is the fixed part and the radial inner side is the free part, and the operating lever abuts against the free part through the reset part.

[0025] Optionally, in the spring-plate-based operating lever reset mechanism as described above, the reset part has a connecting part and an annular abutment part connected to the connecting part. The connecting part is fixed to the operating lever, and the annular abutment part surrounds the outside of the operating lever and abuts against the free part of the spring plate.

[0026] Optionally, in the spring-plate-based operating lever reset mechanism as described above, the free part is provided with several slots or through holes.

[0027] Optionally, in the spring-plate-based operating lever reset mechanism as described above, the stop portion adopts an annular fixed seat with a U-shaped cross-section. The opening of the fixed seat faces the spring plate, and the fixed seat surrounds the outer side of the annular abutment portion. The outer end of the fixed seat is fixedly connected to the fixed portion of the spring plate, and the inner end of the fixed seat abuts against the free portion of the spring plate.

[0028] Optionally, in the spring-plate-based operating lever reset mechanism described above, the operating lever reset mechanism further includes:

[0029] A fixing plate is fixedly installed on the fixing member. The fixing plate is provided with a limiting through hole, through which the operating rod passes and the swing amplitude of the operating rod is limited by the limiting through hole.

[0030] The positive and progressive effects of this utility model are as follows:

[0031] 1. The reset mechanism of this utility model uses a spring sheet instead of a traditional compression spring. Since the spring sheet is a sheet-like structure, its overall volume is greatly reduced compared to the design of two compression springs. When the reset mechanism of this utility model is applied to an industrial operating handle, it also greatly reduces the overall volume of the industrial operating handle.

[0032] 2. The spring sheet of this utility model is not built-in / embedded, but external, which makes the processing and assembly of the reset mechanism simple and convenient.

[0033] 3. This utility model can better cooperate with other rotating mechanisms to achieve the purpose of dual-axis swing for the reset mechanism of single-axis swing. Attached Figure Description

[0034] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0035] Figure 1 A structural cross-sectional view of a reset mechanism for an existing industrial operating handle;

[0036] Figure 2 This is a schematic diagram of a structure according to Embodiment 1 of the present utility model;

[0037] Figure 3 This is a schematic diagram of another structure of Embodiment 1 of the present utility model;

[0038] Figure 4 for Figure 3 Another perspective illustration;

[0039] Figure 5 This is a schematic diagram of another structure of Embodiment 1 of the present utility model;

[0040] Figure 6 This is a schematic diagram of a structure according to Embodiment 2 of the present invention;

[0041] Figure 7 This is a schematic diagram of a structure of embodiment 3 of the present invention;

[0042] Figure 8 for Figure 7 A sectional view;

[0043] Figure 9 for Figure 7 A partial structural diagram. Detailed Implementation

[0044] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0045] It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0046] In the description of this utility model, it should be noted that the directional terms such as "outer side", "middle section", "inner", "outer" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0048] Example 1:

[0049] Reference Figure 2This embodiment provides a spring-loaded lever reset mechanism, which can be used in industrial operating handles for resetting (neutralizing) the lever.

[0050] The operating lever reset mechanism of this embodiment includes an operating lever 10, a spring plate 20, and a stop part 30.

[0051] The operating lever 10 is swayable, and a spring plate 20 is provided in the swaying direction of the operating lever 10. The operating lever 10 directly abuts against the reset working surface 20b1 of the spring plate 20. In some examples, when the operating lever 10 cannot directly abut against the reset working surface 20b1, a reset part can be added. The operating lever 10 is connected to or abuts against the reset part, and the reset part abuts against the reset working surface 20b1 of the spring plate 20, so that the operating lever 10 indirectly abuts against the reset working surface 20b1 of the spring plate 20 through the reset part.

[0052] The spring plate 20 has a fixed part 20a and a free part 20b. The fixed part 20a is fixedly mounted on the fixing member, and one side surface of the free part 20b serves as a reset working surface 20b1. The fixing member is a component that is fixed relative to the operating lever 10, and the fixing member can be a component in an industrial operating handle.

[0053] The stop part 30 is fixedly installed on the fixing member. The stop part 30 abuts against the reset working surface 20b1 of the free part 20b and applies pre-pressure to the reset working surface 20b1. In this embodiment, both the stop part 30 and the operating rod 10 abut against the reset working surface 20b1. When the operating rod 10 moves away from the reset working surface 20b1, that is, when it is not in contact with the spring plate 20, in order to ensure that the operating rod 10 can still abut against the reset working surface 20b1 after reset, this embodiment uses the stop part 30 to pre-pressure and limit the free part 20b of the spring plate 20 to prevent the free part 20b from moving freely.

[0054] Reference Figure 2 Taking the upper spring plate 20 as an example, when the operating lever 10 swings to the left, the operating lever 10 directly presses the spring plate 20. When the operating lever 10 is released, it resets under the restoring capability of the spring plate 20. When the operating lever 10 moves to the right under external force, the operating lever 10 moves away from the spring plate 20, but under the action of the stop part 30, the spring plate 20 still maintains its initial state, and its free part 20b will not move freely.

[0055] like Figure 2 As shown, the operating lever 10 can swing through a single-axis swing mechanism, which includes a first rotating shaft 41 rotatably connected to a fixed member. The operating lever 10 is fixedly connected to the first rotating shaft 41 so that the operating lever 10 swings around the axis of the first rotating shaft 41.

[0056] When the operating lever 10 swings in one direction, only a spring plate 20 needs to be installed in its swing direction to achieve the reset of the operating lever 10. Specifically, as shown in the figure... Figure 2 As shown, when the upper part of the operating lever 10 swings only to the left, a spring plate 20 only needs to be installed on the left side above the first rotating shaft 41 (i.e., the axis). Alternatively, a spring plate 20 can be installed on the right side below the first rotating shaft 41 (i.e., the axis). The placement is such that the operating lever 10 can compress the spring plate 20 in the swing direction. Similarly, when the upper part of the operating lever 10 swings only to the right, a spring plate 20 only needs to be installed on the left side below the first rotating shaft 41 (i.e., the axis) or on the right side above the first rotating shaft 41 (i.e., the axis).

[0057] In some embodiments, when the operating lever 10 reciprocates about the axis of the first rotating shaft 41, that is, when the upper part of the operating lever 10 can swing to either the left or the right, such as Figure 2 As shown, two spring plates 20 need to be set, and the two spring plates 20 are arranged side by side on the side of the operating lever 10 and the stop part 30.

[0058] like Figure 2 As shown, the two spring plates 20 are located on the upper and lower sides of the first rotating shaft 41.

[0059] In some embodiments, refer to Figures 3 to 5 The fixing portions 20a of the two spring sheets 20 are connected together to form an integral spring sheet 20c, or an integral spring sheet 20c is used to replace the two spring sheets 20. The integral spring sheet 20c has a fixing portion 20a and free portions 20b located at both ends of the fixing portion 20a.

[0060] exist Figures 3 to 5 In the structure shown, the fixing component is the second rotating shaft 42 in the industrial operating handle. The fixing part 20a is fixed to the second rotating shaft 42 by a spring fixing plate 43, and the stop part 30 is also fixed to the second rotating shaft 42. When the operating lever 10 swings via the first rotating shaft 41, the first rotating shaft 41 is rotatably connected to the second rotating shaft 42. The second rotating shaft 42 is mounted on the mounting base 44 via bearings, and the axial direction of the second rotating shaft 42 is perpendicular to the axial direction of the first rotating shaft, as shown. Figure 3 As shown, if the axis of the first rotating shaft 41 is the M axis and the axis of the second rotating shaft is the N axis, and the M axis is perpendicular to the N axis, then the purpose of driving the operating lever 10 to swing around the M axis and the N axis can be realized, thus achieving a dual-axis swing purpose of the operating lever.

[0061] A reset mechanism, as described in this example, can also be set up simultaneously in the swing direction of the operating lever 10 around the axis of the second rotating shaft 42 to achieve the reset purpose after the operating lever 10 swings and is released in the swing direction around the axis of the second rotating shaft 42.

[0062] In some embodiments, the second rotating shaft 42 employs friction positioning. This friction positioning design allows the second rotating shaft 42 to stop at any point during rotation, ensuring continuous and stable signal output.

[0063] Preferably, friction positioning can be formed between the second rotating shaft 42 and the fixing member.

[0064] More preferably, a friction plate is fixed on the preferred mounting base 44 of the fixing member, and a friction moving plate is provided on the second rotating shaft 42, and the friction moving plate and the friction plate are positioned by friction.

[0065] More preferably, a friction block is fixed on the preferred mounting base 44 of the fastener, and the friction block directly generates frictional force between itself and the second rotating shaft 42 for frictional positioning of the second rotating shaft 42.

[0066] In some embodiments, refer to Figures 3 to 5 When the operating lever 10 can swing back and forth around an axis, the stop part 30 adopts a limit block, and the two spring plates 20 share the same limit block.

[0067] In some embodiments, the number of limiting blocks can be determined as needed, and one or more can be provided, with a single limiting block simultaneously abutting against two spring plates 20. One or more limiting blocks can be respectively provided on one side or two pairs of sides of the operating lever 10.

[0068] In some embodiments, in the initial state or after the operating lever 10 is reset, the side of the operating lever 10 near the spring plate 20 is flush with the side of the stop portion 30.

[0069] like Figure 2 As shown, in the initial state or after the operating lever 10 is reset, the left side of the operating lever 10 and the left side of the stop part 30 are flush, so that both of them simultaneously abut against the reset working surface 20b1.

[0070] In some embodiments, refer to Figures 2 to 5 The free part 20b adopts a bent structure. The bending angle of the free part 20b is directed away from the operating lever 10 and the stop part 30. The bending angle of the free part 20b abuts against the stop part 30 and the operating lever 10 respectively.

[0071] In this embodiment, the free part 20b adopts a bending structure to further increase the elastic deformation capability and the reset capability of the free part 20b.

[0072] In some embodiments, refer to Figure 5 A roller 21 is provided on the contact surface of the free part 20b that abuts against the operating lever 10 or the reset part. The roller 21 rotates around the axis and is provided on the free part 20b, the operating lever 10 or the reset part.

[0073] like Figure 5 As shown, roller 21 is mounted on free part 20b, and free part 20b abuts against operating lever 10 via roller 21.

[0074] When the operating lever 10 swings, there is relative movement between it and the spring plate 20, which can lead to wear after long-term operation. This embodiment avoids wear by adding a roller 21, which is rollable and prevents wear when the operating lever 20 swings.

[0075] In some embodiments, the two free portions 20b of the operating lever 10 in the direction of reciprocating swing about any axis are symmetrically arranged with respect to an axis of symmetry perpendicular to the axis. That is, the free portions 20b of the two spring plates 20 are symmetrically arranged on both sides of the axis.

[0076] In some embodiments, the operating lever reset mechanism further includes a fixing plate 100, which is fixedly installed on a fixing member. The fixing plate 100 is provided with a limiting through hole 101, through which the operating lever 10 passes, and the swing amplitude of the operating lever 10 is limited by the limiting through hole 101.

[0077] Example 2:

[0078] Reference Figure 6 This embodiment provides a spring-loaded lever reset mechanism, which can be used in industrial operating handles for resetting (neutralizing) the lever. This embodiment differs from Embodiment 1 except for the following structural differences, and will not be described again here.

[0079] Compared to Embodiment 1, in this embodiment, the operating lever 10 can reciprocate around two mutually perpendicular axes. The operating lever 10 can achieve its swing through an XY swing mechanism, which includes an X-axis rotating component 51 and a Y-axis rotating component 52. The X-axis rotating component 51 and the Y-axis rotating component 52 can have the same structure, but their positions differ, and their axes are perpendicular to each other. Specifically, the X-axis rotating component 51 has X-axis pivots 511 at both ends to rotate around the X-axis relative to the fixed component. An X-axis clearance opening 512 is provided in the middle of the X-axis rotating component 51, with its length direction along the X-axis. Similarly, the Y-axis rotating component 52 has Y-axis pivots 521 at both ends, and a Y-axis clearance opening 522 is provided in the middle of the Y-axis rotating component 52, with its length direction along the Y-axis. The operating lever 10 passes through both the X-axis clearance opening 512 and the Y-axis clearance opening 522, with gaps between the operating lever 10 and both openings, allowing it to reciprocate within either opening. When the operating lever 10 reciprocates around the X-axis axis, it causes the X-axis rotating component 51 to rotate relative to the fixed component. Due to the design of the Y-axis clearance opening 522, the operating lever 10 will reciprocate within the Y-axis clearance opening 522 without contacting the Y-axis rotating component 52, which remains stationary. Similarly, when the operating lever 10 reciprocates around the Y-axis axis, it causes the Y-axis rotating component 52 to rotate relative to the fixed component. Due to the design of the X-axis clearance opening 512, the operating lever 10 will reciprocate within the X-axis clearance opening 512 without contacting the X-axis rotating component 51, which remains stationary.

[0080] Of course, the operating lever 10 can realize the XY swing mechanism that can swing back and forth around two mutually perpendicular axes, and other mechanisms in the prior art can also be used. This embodiment does not impose any restrictions.

[0081] In this embodiment, the operating lever 10 can abut against the reset working surface of the free part via the reset part 11. The reset part 11 can be directly connected to the operating lever 10, or it can be... Figure 6 As shown, the reset part 11 is connected to the rotatable X-axis shaft 511 and Y-axis shaft 521, so that when the operating lever 10 swings, it indirectly drives the reset part 11 to swing synchronously through abutment.

[0082] The spring sheet in this embodiment can be the spring sheet provided in the embodiments of Embodiment 1.

[0083] Specifically, the spring sheet in this embodiment has a fixed part and a free part. The fixed part is fixedly mounted on a fixing member, and one side surface of the free part serves as a reset working surface. The fixing member is a component that is fixed relative to the operating lever 10, and the fixing member can be a component from an industrial operating handle.

[0084] When the operating lever 10 swings in one direction, there is a single spring plate. When the operating lever 10 swings back and forth around the X-axis or Y-axis, at least two spring plates are required in either direction of the swing. The two spring plates are arranged side by side on the side of the operating lever 10 and the stop part 30. The two spring plates are located on both sides of the X-axis or Y-axis.

[0085] In some embodiments, the spring sheet has a sheet-like structure, and the operating lever 10 abuts against the free portion of the spring sheet via the reset part 11. The reset part 11 is fixed or abuts against the operating lever 10, and the reset part 11 has two abutting portions 111, each abutting against a corresponding free portion.

[0086] In some embodiments, the fixing portions of two spring plates in the reciprocating swing direction along any axis are connected together to form an integral spring plate, or refer to Figure 6 An integral spring sheet 60 is used instead of two spring sheets. The integral spring sheet 60 has a fixed part 60a and free parts 60b located at both ends of the fixed part 60a.

[0087] In some embodiments, refer to Figure 6 The integrated spring sheet 60 also adopts a sheet-like structure. The reset part 11 is fixed or abuts against the operating rod 10. The reset part 11 has two abutting parts 111, and the two abutting parts 111 abut against a corresponding free part 60b.

[0088] In some embodiments, the middle part of the reset part 11 is fixed or abuts against the operating lever 10, and the two sides of the reset part 11 have abutment parts 111 protruding toward the free part 60b.

[0089] In some embodiments, two integral spring plates 60 and two reset parts 11 are provided along both the X-axis and Y-axis directions, and the two integral spring plates 60 and two reset parts 11 along the same axis are located on both sides of the operating lever 10.

[0090] In practice, a reset part 11 is connected to each X-axis rotating shaft 511 and each Y-axis rotating shaft 521, and an integrated spring plate 60 is provided below each reset part 11.

[0091] In some embodiments, refer to Figure 6 Four integrated spring plates 60 form a rectangular structure. The stop part 30 adopts a limiting block. The four limiting blocks are located at the four corners of the rectangular structure. The two ends of one limiting block abut against two adjacent free parts 60b on two adjacent integrated spring plates 60.

[0092] In some embodiments, two free portions of the operating lever 10 in the direction of reciprocating swing about any axis are symmetrically arranged with an axis of symmetry perpendicular to the axis.

[0093] Example 3:

[0094] Reference Figures 7 to 9 This embodiment provides a spring-loaded lever reset mechanism, which can be used in industrial operating handles for resetting (neutralizing) the lever. This embodiment differs from Embodiment 1 except for the following structural differences, and will not be described again here.

[0095] Compared to Embodiment 1, in this embodiment, the operating lever 10 can swing 360 degrees around a point. In this embodiment, 360 degrees means that it can swing in any direction around the axial direction of the operating lever 10. The operating lever 10 can swing via a universal swing mechanism, which includes a fixed base 71 with a spherical or hemispherical receiving groove. The top of the receiving groove is an open opening. The bottom end of the operating lever 10 has a spherical portion 72, which passes through the middle of the spring plate 80 and is inserted into the receiving groove, allowing it to rotate within the groove.

[0096] Of course, the operating lever 10 can realize a universal swing mechanism that can swing around a point in a 360-degree direction, and other mechanisms in the prior art can also be used. This embodiment does not impose any restrictions.

[0097] In this embodiment, the spring plate 80 has a ring structure. The outer radial side of the spring plate 80 is the fixed part 80a and the inner radial side is the free part 80b. The operating rod 10 surrounds and abuts against the reset working surface of the free part 80b through the reset part 12.

[0098] In some embodiments, the reset part 12 has a connecting part 121 and an annular abutment part 122 connected to the connecting part 121. The connecting part 121 is fixed to the operating lever 10, and the annular abutment part 122 has an annular structure and surrounds the outside of the operating lever 10 and abuts against the free part 80b of the spring plate 80.

[0099] In some embodiments, the free portion 80b is provided with a plurality of slots or through holes. The slot or through hole design enables the free portion 80b to have better elastic deformation capability and restoring force.

[0100] Reference Figure 9 The free part 80b has several through holes 80b1 that are connected vertically and horizontally, and the length direction of the through holes 80b1 is radial.

[0101] In some embodiments, refer to Figure 7 and Figure 8The stop part 30 adopts an annular fixing seat with a U-shaped cross section. The opening of the fixing seat faces the spring plate 80. The fixing seat surrounds the outside of the annular abutment part 122. The outer end of the fixing seat is fixedly connected to the fixing part 80a of the spring plate 80, and the inner end of the fixing seat abuts against the free part 80b of the spring plate 80.

[0102] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A spring-loaded operating lever reset mechanism, the operating lever reset mechanism comprising: A spring sheet having a fixed part and a free part, wherein the fixed part is fixedly installed on a fixing member, and one side surface of the free part serves as a reset working surface; The stop part is fixedly installed on the fixing member, and the stop part abuts against the reset working surface of the free part and applies pre-pressure to the reset working surface; An operating lever is swayable, and a spring plate is provided in the swaying direction of the operating lever. The operating lever directly or through a reset part abuts against the reset working surface. When the operating lever is driven to swing in the swing direction, the operating lever directly or through the reset part squeezes the spring plate, and the operating lever or the reset part on the side away from the swing direction separates from the spring plate. When the operating lever is released, the operating lever or the reset part resets under the action of the spring plate.

2. The spring-plate-based operating lever reset mechanism as described in claim 1, characterized in that, The operating lever can swing back and forth around an axis or two mutually perpendicular axes. In the direction in which the operating lever reciprocates about any axis, there are two spring plates, which are arranged side by side on the side of the operating lever and the stop.

3. The spring-plate-based operating lever reset mechanism as described in claim 2, characterized in that, In the direction of the reciprocating swing of the operating lever about any axis, the fixed portions of the two spring plates are connected together to form an integral spring plate, or an integral spring plate is used instead of the two spring plates, the integral spring plate having the fixed portion and the free portions located at both ends of the fixed portion.

4. The spring-plate-based operating lever reset mechanism as described in claim 2, characterized in that, When the operating lever can swing back and forth around an axis, the stop part adopts a limiting block, and the two spring plates in the direction of the reciprocating swing of the operating lever around the axis share the same limiting block. Preferably, the limiting block is provided on one side or two pairs of sides of the operating lever; Preferably, in the initial state or after the operating lever is reset, the side of the operating lever near the spring plate and the side of the stop are flush.

5. The spring-plate-based operating lever reset mechanism as described in claim 3, characterized in that, When the operating lever can swing back and forth around two mutually perpendicular axes, two integral spring plates and two reset parts are provided along both axes. The two integral spring plates and two reset parts along the same axis are located on both sides of the operating lever. Preferably, the four integral spring sheets form a rectangular structure, the stop portion is a limiting block, the four limiting blocks are respectively located at the four corners of the rectangular structure, and the two ends of one limiting block respectively abut against two adjacent free portions on two adjacent integral spring sheets.

6. The spring-loaded operating lever reset mechanism as described in any one of claims 2 to 4, characterized in that, The free part adopts a bent structure, and the bending angle of the free part faces the side away from the operating lever and the stop part. The bending angle of the free part abuts against the stop part and the operating lever respectively. Preferably, a roller is provided on the contact surface where the free part abuts against the operating lever or the reset part, the roller rotates around the axis, and the roller is provided on the free part, the operating lever or the reset part; Preferably, the two free portions of the operating lever are arranged symmetrically about an axis of symmetry perpendicular to the axis in the direction of reciprocating swing of the lever about any axis.

7. The spring-plate-based operating lever reset mechanism as described in any one of claims 2 to 5, characterized in that, The spring sheet has a sheet-like structure, and the operating lever abuts against the free part through the reset part; The reset part is fixed or abutted against the operating lever. The reset part has two abutting parts, and the two abutting parts abut against a corresponding free part. Preferably, the middle part of the reset part is fixed or abuts against the operating lever, and the two sides of the reset part have abutting parts that protrude toward the free part.

8. The spring-plate-based operating lever reset mechanism as described in claim 1, characterized in that, The operating lever can swing around a point in a 360-degree direction. The spring plate has a ring structure. The outer radial side of the spring plate is the fixed part and the inner radial side is the free part. The operating lever surrounds and abuts against the free part through the reset part. Preferably, the reset part has a connecting part and an annular abutting part connected to the connecting part, the connecting part is fixed to the operating rod, and the annular abutting part surrounds the outside of the operating rod and abuts against the free part of the spring sheet; Preferably, the free part is provided with a number of slots or through holes.

9. The spring-plate-based operating lever reset mechanism as described in claim 8, characterized in that, The stop portion adopts an annular fixing seat with a U-shaped cross-section. The opening of the fixing seat faces the spring plate. The fixing seat surrounds the outside of the annular abutment portion. The outer end of the fixing seat is fixedly connected to the fixing portion of the spring plate, and the inner end of the fixing seat abuts against the free portion of the spring plate.

10. The spring-plate-based operating lever reset mechanism as described in claims 1, 2, 3, 4, 5, 8, or 9, characterized in that, The operating lever reset mechanism further includes: A fixing plate is fixedly installed on the fixing member. The fixing plate is provided with a limiting through hole, through which the operating rod passes and the swing amplitude of the operating rod is limited by the limiting through hole.

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