CN219282161U - Switch assembly for hydraulic transmission device and hydraulic transmission device - Google Patents
Switch assembly for hydraulic transmission device and hydraulic transmission device Download PDFInfo
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- CN219282161U CN219282161U CN202320171123.6U CN202320171123U CN219282161U CN 219282161 U CN219282161 U CN 219282161U CN 202320171123 U CN202320171123 U CN 202320171123U CN 219282161 U CN219282161 U CN 219282161U
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Abstract
The application discloses a switch assembly for a hydraulic transmission device and the hydraulic transmission device, belonging to the technical field of hydraulic transmission. The switch assembly comprises a micro switch, a hydraulic reversing valve and a rotary handle, wherein the micro switch can control the motor to work so as to enable hydraulic oil to generate pressure, and the hydraulic reversing valve can be switched between different oil ways of the working equipment so as to provide driving hydraulic oil for different working states of the working equipment; the hydraulic reversing valve and the micro switch are arranged on two opposite sides of the rotating handle, and when the rotating handle rotates to different positions, the rotating handle can be respectively or simultaneously abutted against or separated from the hydraulic reversing valve and the micro switch so as to press down the hydraulic reversing valve and the micro switch or reset the hydraulic reversing valve and the micro switch, thereby controlling the working state of the working equipment. The switch assembly provided by the application is provided with the rotating handle, and the micro switch and the hydraulic reversing valve can be controlled simultaneously, so that the control operation of switching the working equipment between different working states is simplified.
Description
Technical Field
The utility model relates to the technical field of hydraulic transmission, in particular to a switch assembly for a hydraulic transmission device and the hydraulic transmission device.
Background
The motor of the hydraulic transmission device rotates to enable hydraulic oil to generate pressure, and the hydraulic oil is input into different oil ways of the working equipment to drive the working equipment to work. The working equipment is provided with a micro switch and a hydraulic reversing valve, wherein the micro switch is used for controlling the motor to work to generate hydraulic pressure, and the hydraulic reversing valve is used for switching between different oil ways of the working equipment to provide driving hydraulic pressure for different working states of the working equipment. In the existing hydraulic transmission device, when working equipment is required to be switched between different working states, the micro switch and the hydraulic reversing valve are required to be controlled respectively, the operation is complex, and misoperation is easy to occur, so that the switch assembly capable of controlling the micro switch and the hydraulic reversing valve simultaneously is provided, and the technical problem to be solved is needed.
Disclosure of Invention
The application provides a switch assembly for a hydraulic transmission device, which can solve the problem of complex control operation of switching working equipment between different working states.
In order to solve the technical problems, the application provides a switch assembly for a hydraulic transmission device, which comprises a micro switch, a hydraulic reversing valve and a rotating handle, wherein the micro switch can control a motor to work so as to enable hydraulic oil to generate pressure, and the hydraulic reversing valve can be switched between different oil ways of working equipment so as to provide driving hydraulic oil for different working states of the working equipment; the hydraulic reversing valve and the micro switch are arranged on two opposite sides of the rotating handle, and when the rotating handle rotates to different positions, the rotating handle can be respectively or simultaneously abutted against or separated from the hydraulic reversing valve and the micro switch so as to press down the hydraulic reversing valve and the micro switch or reset the hydraulic reversing valve and the micro switch, thereby controlling the working state of the working equipment.
The application provides a hydraulic transmission device, this hydraulic transmission device include driving pump and working equipment, and the driving pump passes through hydraulic oil drive working equipment acting, is equipped with switch module as above on the driving pump, and switch module is used for controlling the multiple operating condition of working equipment.
The switch assembly that this application provided is provided with the twist grip, and when the twist grip rotated different positions, twist grip can be respectively or simultaneously with hydraulic reversing valve and micro-gap switch butt or separation to press hydraulic reversing valve and micro-gap switch or make hydraulic reversing valve and micro-gap switch reset, but simultaneous control micro-gap switch and hydraulic reversing valve have simplified the control operation that operating device switched between different operating conditions.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a switch assembly provided herein;
FIG. 2 is a schematic view of another embodiment of a switch assembly provided herein;
FIG. 3 is an exploded view of the switch assembly of FIG. 2;
FIG. 4 is a schematic view of an embodiment of a twist grip provided herein;
FIG. 5 is a schematic view of an embodiment of a twist grip according to the present application in a first operating state;
FIG. 6 is a schematic view of an embodiment of a twist grip according to the present application in a second operational state;
FIG. 7 is a schematic view of an embodiment of a twist grip according to the present application in a third operational state;
FIG. 8 is a schematic view of an embodiment of a twist grip provided herein in a fourth operational state;
FIG. 9 is a schematic view of an embodiment of a base provided herein;
FIG. 10 is a schematic structural view of an embodiment of a restoring member provided herein;
fig. 11 is a schematic structural view of an embodiment of a hydraulic transmission provided in the present application.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustrating the present utility model, but do not limit the scope of the present utility model. Likewise, the following examples are only some, but not all, of the examples of the present utility model, and all other examples, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the present utility model.
In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. The terms "first," "second," "third," and the like in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The application provides a switch assembly. Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a switch assembly provided in the present application. The switch assembly 100 for a hydraulic transmission may include a micro switch 10, a hydraulic directional valve 20, and a rotary handle 30. The micro switch 10 can control a motor to work, and when the motor works, the eccentric shaft is driven to push the plunger to generate pressure on hydraulic oil, and the hydraulic reversing valve 20 can be switched between different oil ways of the working equipment to provide driving hydraulic oil for different working states of the working equipment.
The working equipment can be double-acting equipment or hydraulic driving working equipment such as single-acting equipment. The double-acting equipment is provided with an opening oil way and a closing oil way, the hydraulic reversing valve 20 can enable high-pressure hydraulic oil to be switched between the opening oil way and the closing oil way, when the hydraulic reversing valve 20 is pressed down, the high-pressure hydraulic oil is communicated with the opening oil way, the closing oil way is communicated with the oil bin, the hydraulic oil can flow from the opening oil way to the closing oil way and flow back to the oil bin, and the hydraulic oil drives the double-acting equipment to be opened; when the hydraulic reversing valve 20 is reset, high-pressure hydraulic oil is communicated with the closed oil way, the open oil way is communicated with the oil bin, the hydraulic oil can flow from the closed oil way to the open oil way and flow back to the oil bin, and the hydraulic oil drives the double-acting equipment to be closed. For single-acting devices, the hydraulic reversing valve 20 may disconnect or connect the oil circuit of the single-acting device to the sump, thereby providing drive hydraulic oil or pressure relief for the single-acting device.
The hydraulic directional valve 20 and the micro switch 10 are disposed at opposite sides of the rotary handle 30, and when the rotary handle 30 rotates to different positions, the rotary handle 30 can be respectively or simultaneously abutted against or separated from the hydraulic directional valve 20 and the micro switch 10 to press down the hydraulic directional valve 20 and the micro switch 10 or reset the hydraulic directional valve 20 and the micro switch 10, thereby controlling the working state of the working equipment.
The switch assembly 100 provided by the application is provided with the rotary handle 30, when the rotary handle 30 rotates to different positions, the rotary handle 30 can be respectively or simultaneously abutted against or separated from the hydraulic reversing valve 20 and the micro switch 10 so as to press down the hydraulic reversing valve 20 and the micro switch 10 or reset the hydraulic reversing valve 20 and the micro switch 10, and the micro switch 10 and the hydraulic reversing valve 20 can be controlled simultaneously, so that the control operation of switching the working equipment between different working states is simplified.
Referring to fig. 2 and 3, fig. 2 is a schematic structural diagram of another embodiment of the switch assembly provided in the present application, and fig. 3 is an exploded structural diagram of the switch assembly in fig. 2. The switch assembly 100 may further include a base 40, a rotating shaft 50, and a reset member 60. Wherein, the base 40 is partially accommodated in the rotary handle 30, the rotary shaft 50 is mounted on the base 40, the rotary handle 30 is sleeved outside the rotary shaft 50, the rotary handle 30 can rotate around the rotary shaft 50, and the hydraulic reversing valve 20 and the micro switch 10 are arranged on two opposite sides of the base 40. In some embodiments, the rotating shaft 50 is detachably connected to the base 40, and the rotating shaft 50 and the base 40 can be respectively manufactured and connected; the rotation shaft 50 may be integrally formed with the base 40, and is not particularly limited herein.
The reset element 60 is made of elastic material. The reset piece 60 is mounted on the base 40, when the rotary handle 30 rotates under the action of torque, the rotary handle 30 drives one end of the reset piece 60 to rotate so that the reset piece 60 is elastically deformed; when the rotary handle 30 is released, the reset element 60 can restore to deform and drive the rotary handle 30 to reset.
Specifically, the rotary handle 30 may include a first side wall 31, as shown in fig. 3, the first side wall 31 is sleeved outside the rotary shaft 50, the first side wall 31 encloses a accommodating cavity 32, and the base 40 is partially accommodated in the accommodating cavity 32. When the rotary handle 30 rotates to different positions, the first side wall 31 can be respectively or simultaneously abutted against or separated from the hydraulic directional valve 20 and the micro switch 10, so as to control the working state of the working equipment.
The rotary handle 30 may further be provided with a second side wall 33, the second side wall 33 is connected to an end of the first side wall 31 away from the hydraulic directional valve 20, and the second side wall 33 is sleeved outside the rotary shaft 50. The outer surface of the second sidewall 33 may be provided with a plurality of protruding bars 331 at intervals along the longitudinal direction of the rotation shaft 50 to increase the roughness of the outer surface of the second sidewall 33, so that a user can conveniently hold and rotate the rotation handle 30.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an embodiment of a rotary handle provided in the present application. In one embodiment, the first sidewall 31 is provided with a clamping post 311, a first micro-switch triggering portion 312, a second micro-switch triggering portion 313, and a hydraulic reversing valve triggering portion 314. The first micro-switch triggering part 312 and the hydraulic reversing valve triggering part 314 are arranged at intervals on two sides of the clamping column 311, and the second micro-switch triggering part 313 is arranged between the first micro-switch triggering part 312 and the hydraulic reversing valve triggering part 314 at intervals. The rotary handle 30 is viewed from above in a direction facing the positioning column 311, and the positioning column 311, the first micro switch trigger 312, the second micro switch trigger 313, and the hydraulic directional control valve trigger 314 may be sequentially distributed on the outer periphery of the first side wall 31 in the counterclockwise direction, or may be sequentially distributed on the outer periphery of the first side wall 31 in the clockwise direction, which is not particularly limited herein.
The first micro switch trigger 312 or the second micro switch trigger 313 may abut against the micro switch 10 to press down the micro switch 10. When the rotary handle 30 rotates to enable the micro switch 10 to be located between the first micro switch triggering part 312 and the second micro switch triggering part 313, the micro switch 10 is separated from the first side wall 31, at the moment, the micro switch 10 is reset, the motor stops working, and no hydraulic oil is input into the working equipment.
The hydraulic directional valve triggering portion 314 may abut against the hydraulic directional valve 20 to press down the hydraulic directional valve 20, and when the rotary handle 30 rotates such that the hydraulic directional valve 20 is located between the hydraulic directional valve triggering portion 314 and the detent post 311, the hydraulic directional valve 20 is separated from the first sidewall 31, and at this time, the hydraulic directional valve 20 is reset.
The operating states of the operating device may include a first operating state, a second operating state, a third operating state, and a fourth operating state.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of a rotary handle provided in the present application in a first working state. When the rotary handle 30 rotates to enable the micro switch 10 to be located between the first micro switch triggering portion 312 and the second micro switch triggering portion 313, correspondingly, the hydraulic directional valve 20 is located between the hydraulic directional valve triggering portion 314 and the clamping post 311, the micro switch 10 and the hydraulic directional valve 20 are separated from the first side wall 31, the working equipment is in a first working state, and the working equipment stops working.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an embodiment of a rotary handle provided in the present application in a second working state. The rotary handle 30 in the first operating state is rotated in the first direction by an angle alpha 1 In one embodiment, α 1 For example, taking fig. 6 as an example, when the rotary handle 30 is viewed from a view angle deviating from the setting direction of the clamping post 311, the first direction is clockwise, and at this time, the micro switch 10 is located between the first micro switch triggering portion 312 and the second micro switch triggering portion 313, the hydraulic reversing valve triggering portion 314 abuts against the hydraulic reversing valve 20 to press the hydraulic reversing valve 20, and the working device is in the second working state. For the single-acting working device, when the hydraulic reversing valve 20 is pressed down so that an oil way of the single-acting device is communicated with the oil bin, hydraulic oil flows back to the oil bin, and the second working state can be pressure relief of the single-acting device. For the double-acting working device, the hydraulic reversing valve 20 is pressed down to enable high-pressure hydraulic oil to be communicated with an open oil way, and the closed oil way is communicated with the oil bin, but at the moment, the micro switch 10 is in a reset state, no high-pressure hydraulic oil is output, the hydraulic oil can flow back to the oil bin from the closed oil way, and the second working state can be the pressure relief of the closed oil way of the double-acting device.
In some implementationsIn the embodiment, the rotation angle alpha along the first direction when the rotation handle 30 is switched from the first working state to the second working state 1 Other angles between 15 and 25 are possible and are not particularly limited herein.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an embodiment of a rotary handle provided in the present application in a third working state. The rotary handle 30 in the second operating state continues to rotate in the first direction by an angle alpha 2 In one embodiment, α 2 The degree may be 15, the first microswitch triggering portion 312 abuts against the microswitch 10 to press the microswitch 10, the hydraulic directional valve triggering portion 314 abuts against the hydraulic directional valve 20 to press the hydraulic directional valve 20, and the working apparatus is in the third working state. For a double-acting working device, pressing the hydraulic reversing valve 20 causes the high-pressure hydraulic oil to communicate with the open oil passage, the closed oil passage communicates with the oil reservoir, the hydraulic oil can flow from the open oil passage to the closed oil passage and back to the oil reservoir, and the third working state can be to drive the double-acting device to open.
In some embodiments, the rotational angle α in the first direction when the twist grip 30 transitions from the second operating state to the third operating state 2 Other angles between 10 and 20 are possible, and can be selected according to specific requirements.
Referring to fig. 8, fig. 8 is a schematic structural diagram of an embodiment of a rotary handle according to the present application in a fourth operating state. The rotary handle 30 in the first operating state is rotated in the second direction by an angle alpha 3 In one embodiment, α 3 The rotation handle 30 may be 30 degrees, taking fig. 8 as an example, and looking down from the view angle deviating from the setting direction of the clamping post 311, the second direction is counterclockwise, at this time, the second micro switch trigger portion 313 abuts against the micro switch 10 to press the micro switch 10, the hydraulic reversing valve 20 is located between the hydraulic reversing valve trigger portion 314 and the clamping post 311, and the working device is in the fourth working state. For the single-acting device, the hydraulic directional valve 20 is reset to disconnect the oil path of the single-acting device from the oil sump, and simultaneously the micro switch 10 is pressed down, pressurized hydraulic oil is continuously input into the single-acting device, and the fourth operating state may be to drive the single-acting device to operate. For double-acting working apparatus, hydraulic changeResetting the valve 20 allows the high pressure hydraulic oil to communicate with the open oil passage, which communicates with the sump, from which hydraulic oil can flow to the open oil passage and back to the sump, and the fourth operating condition can be to actuate the double acting device to close.
In some embodiments, the rotational angle α in the second direction when the twist grip 30 transitions from the first operating state to the fourth operating state 3 Other angles between 25 and 35 are possible, as may be determined by particular needs.
In order to facilitate the micro switch 10 and the hydraulic directional valve 20 sliding at the end of the first sidewall 31 when the rotary handle 30 rotates, in an embodiment, the first micro switch triggering portion 312, the second micro switch triggering portion 313 and the hydraulic directional valve triggering portion 314 are respectively provided with a first slope 3121, a second slope 3131 and a third slope 3141, referring to fig. 4 to 8, the micro switch 10 may slide along the first slope 3121 and the second slope 3131 to the first micro switch triggering portion 312 and the second micro switch triggering portion 313, respectively, and the hydraulic directional valve 20 may slide along the third slope 3141 to the hydraulic directional valve triggering portion 314.
By providing the first slope surface 3121, the second slope surface 3131, and the third slope surface 3141, the micro switch 10 and the hydraulic directional valve 20 can be smoothly transitioned when being switched between being pressed and reset, and the transition of the working device between various working states is smoother.
In order to fix the reset element 60, in an embodiment, the base 40 is provided with a fixing column 41, and the reset element 60 is clamped on the fixing column 41, as shown in fig. 9, fig. 9 is a schematic structural diagram of an embodiment of the base provided in the present application.
Specifically, the reset element 60 may include an annular body 61 and a detent portion 62, as shown in fig. 10, and fig. 10 is a schematic structural diagram of an embodiment of the reset element provided in the present application. The locking portions 62 are connected to opposite ends of the annular body 61, the annular body 61 is mounted on the base 40, and the locking portions 62 are locked to opposite sides of the fixing column 41 and the locking column 311. When the rotary handle 30 rotates under the action of torque, the clamping column 311 drives the clamping part 62 on one side to rotate, and the fixing column 41 prevents the clamping part 62 on the opposite side from rotating, so that the annular body 61 is opened; when the rotary handle 30 is released, the annular body 61 is restored to deform, and the annular body 61 is closed and drives the clamping column 311 to reset, so that the working equipment can be reset to the first working state in time after the working equipment is completed.
To limit the rotational travel of the rotary handle 30, in one embodiment, a limiting post 315 is provided on the first sidewall 31, as shown in fig. 4. The limit post 315 is located between the detent post 311 and the hydraulic reversing valve triggering portion 314. When the clamping column 311 drives the clamping part 62 on one side to rotate towards the hydraulic reversing valve triggering part 314, the clamping part 62 on the opposite side can be abutted with the limit column 315 so as to prevent the rotary handle 30 from continuing to rotate; when the clamping post 311 drives the clamping portion 62 to rotate away from the hydraulic reversing valve triggering portion 314, the clamping portion 62 may abut against the first micro switch triggering portion 312 to prevent the rotary handle 30 from continuing to rotate, so as to limit the rotation stroke of the rotary handle 30 within a set range.
Referring to fig. 11, fig. 11 is a schematic structural diagram of an embodiment of a hydraulic transmission device provided in the present application. The hydraulic transmission device 300 comprises a driving pump 310 and a working device 320, the driving pump 310 drives the working device 320 to do work through hydraulic oil, the driving pump 310 is provided with the switch assembly 100 as described above, and the switch assembly 100 is used for controlling various working states of the working device 320.
The application provides a switch assembly has following beneficial effect at least:
1. the switch assembly 100 provided by the application is provided with the rotary handle 30, and the rotary handle 30 can simultaneously control the micro switch 10 and the hydraulic reversing valve 20, so that the control operation of switching the working equipment between different working states is simplified.
2. By providing the first slope surface 3121, the second slope surface 3131, and the third slope surface 3141, the micro switch 10 and the hydraulic directional valve 20 can be smoothly transitioned when being switched between being pressed and reset, and the transition of the working device between various working states is smoother.
3. The switch assembly is provided with a reset piece 60, and the reset piece 60 can drive the rotary handle 30 to reset, so that the working equipment can be reset to the first working state in time after the working equipment is finished.
The foregoing description is only a partial embodiment of the present utility model, and is not intended to limit the scope of the present utility model, and all equivalent devices or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the present utility model.
Claims (10)
1. A switch assembly for a hydraulic transmission, comprising:
the hydraulic reversing valve can be switched between different oil ways of working equipment to provide driving hydraulic oil for different working states of the working equipment;
the hydraulic reversing valve and the micro switch are arranged on two opposite sides of the rotating handle, and when the rotating handle rotates to different positions, the rotating handle can be respectively or simultaneously abutted against or separated from the hydraulic reversing valve and the micro switch, so that the hydraulic reversing valve and the micro switch are pressed down or reset, and the working state of the working equipment is controlled.
2. The switch assembly of claim 1, wherein the rotary handle includes a first sidewall that encloses a receiving cavity, the first sidewall being adapted to abut or separate the hydraulic directional valve and the microswitch when the rotary handle is rotated to different positions.
3. The switch assembly of claim 2, wherein the first sidewall is provided with a detent post, a first microswitch trigger, a second microswitch trigger, and a hydraulic reversing valve trigger;
the first micro switch triggering part and the hydraulic reversing valve triggering part are arranged at intervals on two sides of the clamping column, and the second micro switch triggering part is arranged between the first micro switch triggering part and the hydraulic reversing valve triggering part at intervals;
the first micro-switch triggering part or the second micro-switch triggering part can be abutted with the micro-switch to press down the micro-switch; when the rotary handle rotates to enable the micro switch to be located between the first micro switch triggering part and the second micro switch triggering part, the micro switch is separated from the first side wall;
the hydraulic reversing valve trigger part can be abutted with the hydraulic reversing valve to press down the hydraulic reversing valve, and when the rotating handle rotates to enable the hydraulic reversing valve to be located between the hydraulic reversing valve trigger part and the clamping column, the hydraulic reversing valve is separated from the first side wall.
4. A switch assembly as claimed in claim 3, wherein the operating conditions of the operating device include a first operating condition, a second operating condition, a third operating condition and a fourth operating condition;
when the rotary handle rotates to enable the micro switch to be located between the first micro switch triggering part and the second micro switch triggering part, correspondingly, the hydraulic reversing valve is located between the hydraulic reversing valve triggering part and the clamping column, the micro switch and the hydraulic reversing valve are separated from the first side wall, the working equipment is in the first working state, and the working equipment stops working;
the rotary handle in the first working state rotates for 20 degrees along a first direction, the micro switch is positioned between the first micro switch triggering part and the second micro switch triggering part, the hydraulic reversing valve triggering part is abutted with the hydraulic reversing valve to press down the hydraulic reversing valve, and the working equipment is in the second working state;
the rotary handle in the second working state continuously rotates for 15 degrees along the first direction, the first micro switch triggering part is in contact with the micro switch to press the micro switch, the hydraulic reversing valve triggering part is in contact with the hydraulic reversing valve to press the hydraulic reversing valve, and the working equipment is in the third working state;
the rotary handle in the first working state rotates for 30 degrees along the second direction, the second micro switch triggering part is abutted to the micro switch to press the micro switch, the hydraulic reversing valve is located between the hydraulic reversing valve triggering part and the clamping column, and the working equipment is in the fourth working state.
5. The switch assembly of claim 3, wherein the first microswitch trigger portion, the second microswitch trigger portion, and the hydraulic reversing valve trigger portion are provided with a first slope, a second slope, and a third slope, respectively, the microswitch is slidable along the first slope and the second slope to the first microswitch trigger portion and the second microswitch trigger portion, respectively, and the hydraulic reversing valve is slidable along the third slope to the hydraulic reversing valve trigger portion.
6. A switch assembly as claimed in claim 3, wherein the switch assembly comprises a base, a rotating shaft and a reset member;
the base part is accommodated in the accommodating cavity, the rotating shaft is arranged on the base, the rotating handle is sleeved outside the rotating shaft and can rotate around the rotating shaft, and the hydraulic reversing valve and the micro switch are arranged on two opposite sides of the base;
the reset piece is arranged on the base, and when the rotating handle rotates under the action of torque, the rotating handle drives one end of the reset piece to rotate so that the reset piece is elastically deformed; when the rotary handle is released, the reset piece can restore to deform and drive the rotary handle to reset.
7. The switch assembly of claim 6, wherein the base is provided with a fixed post, and the reset member is clamped on the fixed post.
8. The switch assembly of claim 7, wherein the reset member comprises an annular body and a detent, the detent being connected to opposite ends of the annular body, the annular body being mounted on the base, the detent being clamped to opposite sides of the fixed post and the detent post;
when the rotating handle rotates under the action of torque, the clamping part on one side is driven by the clamping column to rotate, and the clamping part on the opposite side is prevented from rotating by the fixed column, so that the annular body is opened; when the rotary handle is released, the annular body is restored to deform, and the annular body is closed and drives the clamping column to reset.
9. A switch assembly as claimed in claim 3, wherein the first side wall is provided with a limit post, the limit post being located between the detent post and the hydraulic directional valve trigger, the limit post being adapted to limit the rotational travel of the rotatable handle.
10. A hydraulic transmission, comprising:
a driving pump and working equipment, wherein the driving pump drives the working equipment to do work through hydraulic oil, and a switch assembly as claimed in any one of claims 1-9 is arranged on the driving pump and is used for controlling various working states of the working equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320171123.6U CN219282161U (en) | 2023-02-02 | 2023-02-02 | Switch assembly for hydraulic transmission device and hydraulic transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320171123.6U CN219282161U (en) | 2023-02-02 | 2023-02-02 | Switch assembly for hydraulic transmission device and hydraulic transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219282161U true CN219282161U (en) | 2023-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320171123.6U Active CN219282161U (en) | 2023-02-02 | 2023-02-02 | Switch assembly for hydraulic transmission device and hydraulic transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219282161U (en) |
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2023
- 2023-02-02 CN CN202320171123.6U patent/CN219282161U/en active Active
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