Handle module and switch

Abstract

The invention discloses a handle module and a switch. The handle module comprises a shell; the hand-operated wheel is provided with a disc-shaped hand-operated wheel main body, and the hand-operated wheel main body is provided with a groove; the knob assembly is provided with a knob capable of rotating between a first position and a second position; a slider coupled to the knob assembly and configured to move linearly, the slider inserted into the groove to block rotation of the hand wheel when the knob is in the first position, and the slider not inserted into the groove to allow rotation of the hand wheel when the knob is in the second position; the end, facing the groove, of the sliding block is provided with a chamfer, and the shape of the chamfer is matched with the shape of the groove, so that when the sliding block is inserted into the groove, the manual operation wheel can overcome blocking of the sliding block to rotate under the action of external force exceeding threshold force.

Description

TECHNICAL FIELD

[0001] The present application relates to a handle module and a switch, and more particularly, to a handle module and a switch that are easier to operate. BACKGROUND

[0002] For a switch placed in an electrical cabinet, manual operation can be performed through a handle module that extends to the outside of the electrical cabinet. The handle module can be operated in an automatic mode and a manual mode, and a user can control the operation mode of the handle module by operating a knob.

[0003] In the existing handle module, if the user expects to switch from the automatic mode to the manual mode, it is necessary to first rotate the knob and then manually operate the handle module, which causes the user to operate relatively inconveniently. In addition, if the user forcibly manually operates the handle module in the automatic mode, the handle module can be damaged by excessive force. At the same time, during the operation of the padlock, the non-unique movement path of the padlock piece reduces the reliability of the padlock.

[0004] Therefore, it is desirable to propose a handle module to improve the defects in the above-mentioned prior art. SUMMARY

[0005] According to a first aspect of the present application, a handle module is proposed, comprising: a housing; a hand wheel having a disc-shaped hand wheel body, at least a part of a radial edge of the hand wheel body being provided with a groove; a knob assembly having a knob rotatable between a first position and a second position; a slider coupled to the knob assembly and configured to move linearly, when the knob is in the first position, the slider is inserted into the groove to block rotation of the hand wheel, and when the knob is in the second position, the slider is not inserted into the groove to allow rotation of the hand wheel; wherein an end of the slider facing the groove has a chamfer, the shape of the chamfer matches the shape of the groove, so that when the slider is inserted into the groove, the hand wheel can rotate to overcome the block of the slider under the action of an external force exceeding a threshold force.

[0006] According to this scheme, when the handle module is in the automatic mode, although the hand wheel is blocked by the slider, if a large enough external force is applied to the hand wheel, the hand wheel can rotate to overcome the resistance of the slider, so as to be manually operated by the user. This makes it unnecessary to first rotate the knob if the user expects to switch from the automatic mode to the manual mode, and the hand wheel can be directly manually operated to directly switch from the automatic mode to the manual mode. In addition, compared with the case where the hand wheel is completely blocked by the slider and cannot move, it also avoids the user applying excessive external force to the hand wheel to cause damage to the handle module.

[0007] In some schemes, the chamfer can have an inclined surface, the inclined surface being at an acute angle to the moving direction of the slider.

[0008] According to the scheme, the force of the hand-operated wheel acting on the inclined surface of the sliding block has a component along the moving direction of the sliding block, so that the sliding block can be pushed out of the groove, so that the hand-operated wheel is no longer rotated by the resistance of the sliding block.

[0009] In some schemes, when the sliding block is inserted into the groove, the inclined surface can be parallel to the side surface of the groove.

[0010] In some schemes, the knob assembly can further include a cam fixed to the knob, the sliding block has a contact portion, the cam has a matching contact portion, the matching contact portion cooperates with the contact portion so that the matching contact portion can actuate the contact portion, and the contact portion can actuate the matching contact portion.

[0011] In some schemes, the contact portion can be a protrusion, the matching contact portion can be a recess, the recess has a first contact surface and a second contact surface, the first contact surface is closer to the knob than the second contact surface, the first contact surface can contact and actuate the protrusion to move towards the groove, and the second contact surface can contact and actuate the protrusion to move away from the groove.

[0012] In some schemes, the handle module can further include a micro switch arranged near the cam and capable of switching between a first state and a second state, when the knob is in the first position, the outer surface of the cam is separated from the button of the micro switch, and the micro switch is in the first state, when the knob is in the second position, the outer surface of the cam contacts and presses the button of the micro switch, and the micro switch is in the second state.

[0013] According to the scheme, the micro switch can control the opening or closing of the automatic mode based on the position of the knob. Specifically, when the knob switches the handle module from the automatic mode to the manual mode, the micro switch switches the automatic mode from the open state to the closed state; when the knob switches the handle module from the manual mode to the automatic mode, the micro switch switches the automatic mode from the closed state to the open state.

[0014] In some schemes, the handle module can further include a padlock piece having a padlock hole for a padlock, the padlock piece being capable of extending out of the housing when the hand-operated wheel is in the open position, and the padlock piece being incapable of extending out of the housing when the hand-operated wheel is in the closed position.

[0015] According to the scheme, when maintenance operation is needed for the switch, the switch needs to be disconnected, and the padlock piece ensures that the switch cannot be manually misoperated to switch from the open state to the closed state, ensuring the safety of the maintenance operation.

[0016] In some embodiments, a radial outer periphery of the hand wheel body can be provided with a slot extending in a first direction, the first direction being parallel to the axis of the hand wheel body, the padlock member having a padlock body and a lever portion extending from the padlock body in a second direction, the padlock hole being provided on the padlock body, the second direction being perpendicular to the first direction; when the hand wheel is in the open position, the lever portion of the padlock member is aligned with the slot in the first direction, the lever portion of the padlock member is movable through the slot to move the padlock body to the outside of the housing; when the hand wheel is in the closed position, the lever portion of the padlock member is at least partially misaligned with the slot in the first direction, the lever portion of the padlock member is blocked so that the padlock body cannot be moved to the outside of the housing.

[0017] In some embodiments, the handle module can further include a guide member fixed to the housing, the guide member being provided with a channel extending in the first direction, the padlock body being configured to move in the channel.

[0018] According to this embodiment, the guide member makes the extraction and retraction path of the padlock member unique, and the padlock member does not swing undesirably when the padlock operation is performed.

[0019] In some embodiments, the guide member can be provided with a blocking block, the padlock member having a padlock protrusion protruding from the padlock body in a third direction, the third direction being perpendicular to the first direction and the second direction, the blocking block being aligned with the padlock protrusion in the first direction.

[0020] According to this embodiment, the blocking block can ensure that the padlock member does not twist undesirably when the padlock operation is performed.

[0021] In some embodiments, an axial end surface of the hand wheel body can be provided with an identification line, the identification line rotating with the hand wheel to identify the position of the hand wheel.

[0022] According to this embodiment, the user can know the state information of the hand wheel in real time through the identification line to know the state of the switch.

[0023] According to a second aspect of the present application, a switch is provided, comprising: a main body, when the hand wheel is in the closed position, the switch is in the closed state, when the hand wheel is in the open position, the switch is in the open state; the handle module according to the first aspect of the present application, the handle module being attached to the main body.

[0024] The switch according to the second aspect of the present application has the same advantages as the handle module according to the first aspect of the present application.

[0025] In some embodiments, when the knob is in the first position, the switch is automatically controlled, and when the knob is in the second position, the switch is manually controlled.

[0026] In some aspects, the hand wheel is rotatable between a closed position, an intermediate position, and an open position, the intermediate position being between the closed position and the open position, the slide being aligned with the groove to enable the slide to be inserted into the groove when the hand wheel is in the intermediate position. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A schematic view of a switch according to an embodiment of the application is shown;

[0028] Figure 2A An external schematic view of a handle module according to an embodiment of the application is shown, wherein the handle module is in an automatic mode;

[0029] Figure 2B An external schematic view of a handle module according to an embodiment of the application is shown, wherein the handle module is in a closed position;

[0030] Figure 2C An external schematic view of a handle module according to an embodiment of the application is shown, wherein the handle module is in an open position;

[0031] Figure 2D An external schematic view of a handle module according to an embodiment of the application is shown, wherein the handle module is in a padlock state;

[0032] Figure 3A An internal schematic view of a handle module according to an embodiment of the application is shown, wherein the handle module is in an automatic mode;

[0033] Figure 3B An internal schematic view of a handle module according to an embodiment of the application is shown, wherein the handle module is in a manual mode;

[0034] Figure 4A A schematic view of a padlock mechanism according to an embodiment of the application is shown, wherein the handle module is not in an open state;

[0035] Figure 4B A schematic view of a padlock mechanism according to an embodiment of the application is shown, wherein the handle module is in an open state;

[0036] Figure 5 An exploded view of a padlock mechanism according to an embodiment of the application is shown;

[0037] Figure 6 A schematic view of a padlock mechanism according to an embodiment of the application is shown, from another angle.

[0038] LIST OF REFERENCE NUMBERS

[0039] 10 switch

[0040] 100 handle module

[0041] 110 housing

[0042] 120 hand wheel

[0043] 122 hand wheel body

[0044] 124 recess

[0045] 126 slot

[0046] 127 identification line

[0047] 128 manipulation hole

[0048] 130 knob assembly

[0049] 132 knob

[0050] 134 cam

[0051] 136 recessed portion

[0052] 137 first contact surface

[0053] 138 second contact surface

[0054] 140 slider

[0055] 142 chamfer

[0056] 144 protrusion

[0057] 150 micro switch

[0058] 152 button

[0059] 160 padlock member

[0060] 162 padlock body

[0061] 163 padlock hole

[0062] 164 rod portion

[0063] 166 padlock protrusion

[0064] 170 guide member

[0065] 172 passage

[0066] 174 blocking block

[0067] 200 main body DETAILED DESCRIPTION

[0068] In order to make the purpose, scheme and advantages of the technical solutions of the present application more clear, the technical solutions of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the specific embodiments of the present application. Unless otherwise specified, the terms used herein have the meanings commonly understood in the art. The same reference signs in the drawings represent the same components.

[0069] Figure 1 A schematic view of a switch 10 according to an embodiment of the present application is shown, which mainly comprises a main body 200 and a handle module 100 attached to the main body 200. Generally, the main body 200 is located in an electrical cabinet, and the handle module 100 extends out of the electrical cabinet and can be manually operated by a user.

[0070] The switch 10 can be operated in an automatic mode and a manual mode. In the automatic mode, the switch 10 is controlled by a PCB, for example. In the manual mode, the switch 10 is operated by the user manually operating the handle module 100, for example, the user can insert a handle into a handle operating hole 128 of a handle wheel 120 of the handle module 100, and then rotate the handle to manually control the main body 200.

[0071] In order to make the automatic control and the manual control of the switch 10 not interfere with each other, a knob assembly 130 is provided on the handle module 100. When the knob assembly 130 is rotated to the automatic mode, the rotation of the handle wheel 120 is hindered, so that the manual operation cannot be performed. When the knob assembly 130 is rotated to the manual mode, the rotation of the handle wheel 120 is no longer hindered, so that the manual operation can be performed.

[0072] Specifically, the handle module 100 mainly comprises the handle wheel 120, the knob assembly 130 and a slider 140. The handle wheel 120 has a disc-shaped handle wheel body 122, an axial end face of the handle wheel body 122 can be exposed outside the housing 110 to allow the user to operate (i.e., rotate) the handle wheel 120 through the handle operating hole 128, and at least a part of a radial edge of the handle wheel body 122 is provided with a groove 124. The knob assembly 130 has a knob 132 which can be moved between a first position (corresponding to making the handle module 100 in the automatic mode) and a second position (corresponding to making the handle module 100 in the manual mode), and the knob 132 can be manually operated (i.e., rotated) by the user. The slider 140 is coupled to the knob assembly 130 and is configured to move linearly, when the knob 132 is in the first position, the slider 140 is inserted into the groove 124 to block the rotation of the handle wheel 120, when the knob 132 is in the second position, the slider 140 is not inserted into the groove 124 to allow the rotation of the handle wheel 120.

[0073] However, in the above situation, if the user wishes to switch from automatic mode to manual mode, they must first rotate the knob assembly 130 and then manually operate the handle module 100, which is relatively inconvenient for the user. In addition, if the user forcibly manually operates the handle module 100 in automatic mode, the hand wheel 120 may continue to be subjected to a large resistance from the slider 140, which may cause the handle module 100 to be damaged by excessive force.

[0074] In order to improve the above shortcomings, Figure 3A and Figure 3B As shown, in the handle module 100 proposed by the present invention, the end of the slider 140 facing the groove 124 has a chamfer 142. The shape of the chamfer 142 matches the shape of the groove 124, so that when the slider 140 is inserted into the groove 124, the manual wheel 120 can overcome the resistance of the slider 140 and rotate under the action of a sufficiently large external force. Thus, when the handle module 100 is in automatic mode, although the manual wheel 120 is blocked by the slider 140, if a sufficiently large external force is applied to the manual wheel 120, the manual wheel 120 can overcome the resistance of the slider 140 and rotate, thereby being manually operated by the user. This allows the user to switch from automatic mode to manual mode directly by manually operating the manual wheel 120 without first rotating the knob 132. In addition, because when the external force applied to the hand wheel 120 is large enough, the hand wheel 120 can break free from the constraint of the slider 140 and is no longer subject to the relatively large resistance applied by the slider 140, compared to the situation where the hand wheel 120 is completely blocked by the slider 140 and cannot move, it also avoids the user applying excessive external force to the hand wheel 120, causing damage to the handle module 100.

[0075] Specifically, chamfer 142 may have an inclined surface that forms an acute angle with the direction of movement of slider 140. This allows the force applied by hand wheel 120 to the inclined surface of slider 140 to have a component along the direction of movement of slider 140, thereby pushing slider 140 out of groove 124 and allowing hand wheel 120 to rotate without resistance from slider 140. In contrast, in the prior art, the surface of slider 140 is parallel to the direction of movement of slider 140. This means that the force applied by hand wheel 120 to the inclined surface of slider 140 has only a component perpendicular to the direction of movement of slider 140, and no component along the direction of movement of slider 140. Consequently, the force cannot push slider 140 out of groove 124, and hand wheel 120 is constantly hindered by slider 140 and cannot rotate. Preferably, when slider 140 is inserted into groove 124, the inclined surface may be parallel to the side surfaces of groove 124.

[0076] In particular, the knob assembly 130 can further include a cam 134 fixed to the knob 132, the slider 140 having a contact portion, the cam 134 having a mating contact portion that cooperates with the contact portion such that the mating contact portion can actuate the contact portion, and the contact portion can also actuate the mating contact portion. For example, the contact portion can be a protrusion 144, the mating contact portion can be a recess 136 having a first contact surface 137 and a second contact surface 138, the first contact surface 137 being closer to the knob 132 than the second contact surface 138, the first contact surface 137 being able to contact and actuate the protrusion 144 to move towards the groove 124 (i.e., actuate the slider 140 to move towards the groove 124), the second contact surface 138 being able to contact and actuate the protrusion 144 to move away from the groove 124 (i.e., actuate the slider 140 to move away from the groove 124).

[0077] Preferably, the handle module 100 can further include a micro switch 150 arranged in the vicinity of the cam 134 and capable of switching between a first state (corresponding to the handle module 100 being in the automatic mode) and a second state (corresponding to the handle module 100 being in the manual mode), when the knob 132 is in the first position, the outer surface of the cam 134 is disengaged from the button 152 of the micro switch 150, the micro switch 150 is in the first state, when the knob 132 is in the second position, the outer surface of the cam 134 contacts and presses the button 152 of the micro switch 150, the micro switch 150 is in the second state. In this way, the micro switch 150 can control the opening or closing of the automatic mode based on the position of the knob 132. In particular, when the knob 132 switches the handle module 100 from the automatic mode to the manual mode, the micro switch 150 switches the automatic mode from the open state to the closed state; when the knob 132 switches the handle module 100 from the manual mode to the automatic mode, the micro switch 150 switches the automatic mode from the closed state to the open state. In other words, the micro switch 150 ensures that manual control and automatic control do not occur at the same time to avoid mutual interference between manual control and automatic control.

[0078] Preferably, the handle module 100 can further comprise a padlock piece 160 having a padlock hole 163 for a padlock, the padlock piece 160 being extendable from the housing 110 when the handle wheel 120 is in the open position, a user can hang a lock through the padlock hole 163 on the padlock piece 160 to prevent the rotation of the handle wheel 120 (i.e. disable the manual mode). When the handle wheel 120 is in the closed position, the padlock piece 160 is not extendable from the housing. When maintenance operation is required for the switch 10, the switch 10 needs to be disconnected, and the padlock piece 160 ensures that the switch 10 cannot be switched from the open state to the closed state by manual misoperation, ensuring the safety of the maintenance operation. In addition, in the case that the switch 10 is in the closed state, the padlock operation cannot be performed, ensuring the safety of the maintenance personnel, because when the switch 10 is in the closed state, the handle module 100 is likely to be live, posing a safety hazard to the maintenance personnel.

[0079] In particular, the radially outer periphery of the handle wheel body 122 can be provided with a slot 126 extending in a first direction, the first direction being parallel to the axis of the handle wheel body 122, the padlock piece 160 having a padlock body 162 and a stem portion 164 extending from the padlock body 162 in a second direction, the padlock hole 163 being provided on the padlock body 162, the second direction being perpendicular to the first direction. Only when the handle wheel 120 is in the open position, the stem portion 164 of the padlock piece 160 is aligned with the slot 126 in the first direction (as shown in Figure 4B ), the stem portion 164 of the padlock piece 160 is movable through the slot 126 to move the padlock body 162 to the outside of the housing 110. When the handle wheel 120 is not in the open position, the stem portion 164 of the padlock piece 160 is at least partially misaligned with the slot 126 in the first direction (for example, as shown in the automatic mode position Figure 4A ), the stem portion 164 of the padlock piece 160 is blocked so that the padlock body 162 cannot be moved to the outside of the housing 110. Similarly, when the handle wheel is in the closed position, the stem portion 164 of the padlock piece 160 is also blocked so that the padlock body 162 cannot be moved to the outside of the housing 110.

[0080] Preferably, as shown in Figure 5 , the handle module 100 can further comprise a guide piece 170 fixed to the housing 110, the guide piece 170 being provided with a channel 172 extending in the first direction, the padlock body 162 being configured to move within the channel 172. The guide piece 170 makes the extension and retraction path of the padlock piece 160 unique (i.e. only in the direction defined by the channel 172), so that the padlock piece 160 does not swing undesirably (i.e. rotation in the plane in which the padlock hole 163 is located is limited by the side walls of the channel 172) when the padlock operation is performed.

[0081] In addition, asFigure 6 As shown, the guide 170 can be provided with a blocking block 174, and the padlock member 160 has a padlock protrusion 166 protruding from the padlock body 162 in a third direction perpendicular to the first direction and the second direction, and the blocking block 174 is aligned with the padlock protrusion 166 in the first direction. The blocking block 174 can ensure that the padlock member 160 will not be twisted undesirably (i.e., the rotation in the plane perpendicular to the plane in which the padlock hole 163 is located is limited by the blocking block 174) when the padlock operation is performed. Through the above guide arrangement, the padlock member 160 can only be able to translate to pull out or retract the handle module 100, without any other rotational movement, which increases the reliability of the padlock operation and optimizes the user's experience of the padlock operation.

[0082] Preferably, as Figures 2A to 2D shown, the axial end face of the hand wheel body 122 can be provided with an identification line 127, which rotates with the hand wheel 120 to identify the position of the hand wheel 120. In this way, the user can know the state information of the hand wheel 120 in real time through the identification line 127 to know the state of the switch 10.

[0083] The specific operation process of the switch 10 according to the present application is described in detail as follows: as Figure 2A shown, the switch 10 can be in an automatic mode in general, and the hand wheel 120 is in a middle position. If it is desired to manually close the switch 10, the handle can be directly inserted into the operating hole 128 of the hand wheel 120 and rotated (as Figure 2A shown, the handle is rotated counterclockwise) to rotate the hand wheel 120 to the closed position as Figure 2B shown. If it is desired to manually open the switch 10, the handle can be directly inserted into the operating hole 128 of the hand wheel 120 and rotated (as Figure 2A shown, the handle is rotated clockwise) to rotate the hand wheel 120 to the open position as Figure 2C shown. Once the handle module 100 enters the manual mode, the cam 134 will press the button 152 of the micro switch 150 to disable the automatic mode of the handle module 100.

[0084] After the manual operation is completed, if it is desired to restore the handle module 100 to the automatic mode, the hand wheel 120 can be first rotated to the middle position as Figure 2A shown, the slider 140 is aligned with the groove 124 of the hand wheel 120, and then the knob 132 is rotated to insert the slider 140 into the groove 124 to block the further rotation of the hand wheel 120 (i.e., to disable the manual mode). Once the handle module 100 enters the automatic mode, the cam 134 will release the button 152 of the micro switch 150 to enable the automatic mode of the handle module 100.

[0085] Furthermore, if it is desired to perform maintenance on the switch 10, the hand wheel can first be rotated to the open position as shown in Figure 2C FIG. 6, so that the padlock member 160 is aligned with the slot 126 of the hand wheel 120, then the padlock member 160 is withdrawn along the slot 126 from the housing 110, and the padlock is attached to the padlock hole 163 to ensure that the hand wheel 120 cannot be inadvertently moved from the open position to the closed position, and finally the padlock operation is performed.

[0086] The various exemplary embodiments of the present application are described in detail herein with reference to the preferred embodiments, however, it will be appreciated by those skilled in the art that various modifications and improvements can be made to the above-described specific embodiments without departing from the inventive concept, and the various technical features and structures proposed by the present application can also be combined without exceeding the scope of the present application, and the scope of protection of the present application is defined by the appended claims.

Claims

1. A handle module, characterized in that Comprise: a housing; a hand wheel having a disc-shaped hand wheel body, at least a portion of a radial edge of the hand wheel body being provided with a groove; a knob assembly having a knob rotatable between a first position and a second position; a slider coupled to the knob assembly and configured to move linearly, the slider being inserted into the groove to block rotation of the hand wheel when the knob is in the first position, the slider being not inserted into the groove to allow rotation of the hand wheel when the knob is in the second position; wherein an end of the slider facing the groove has a chamfer, a shape of the chamfer being matched with a shape of the groove, such that the hand wheel is able to rotate against the block of the slider under an external force exceeding a threshold force when the slider is inserted into the groove.

2. The handle module of claim 1, wherein, The chamfer has an inclined surface, the inclined surface being at an acute angle with a moving direction of the slider.

3. The handle module of claim 2, wherein, The inclined surface is parallel to a side surface of the groove when the slider is inserted into the groove.

4. The handle module of claim 1, wherein, The knob assembly further comprises a cam fixed to the knob, the slider has a contact portion, the cam has a matched contact portion, the matched contact portion is matched with the contact portion such that the matched contact portion is able to actuate the contact portion, and the contact portion is able to actuate the matched contact portion.

5. The handle module of claim 4, wherein, The contact portion is a protrusion, the matched contact portion is a recess, the recess has a first contact surface and a second contact surface, the first contact surface is closer to the knob than the second contact surface, the first contact surface is able to contact and actuate the protrusion to move towards the groove, and the second contact surface is able to contact and actuate the protrusion to move away from the groove.

6. The handle module of claim 4, wherein, The handle module further comprises a micro switch arranged in a vicinity of the cam and switchable between a first state and a second state, an outer surface of the cam is disengaged from a button of the micro switch when the knob is in the first position, the micro switch is in the first state, an outer surface of the cam contacts and presses the button of the micro switch when the knob is in the second position, and the micro switch is in the second state.

7. The handle module of claim 1, wherein, The handle module further comprises a padlock piece having a padlock hole for a padlock, the padlock piece is able to be extended out of the housing when the hand wheel is in an open position, and the padlock piece is not able to be extended out of the housing when the hand wheel is in a closed position.

8. The handle module of claim 7, wherein, A radial outer periphery of the hand wheel body is provided with a slot extending in a first direction, the first direction being parallel to an axis of the hand wheel body, the padlock piece has a padlock body and a lever portion extending from the padlock body in a second direction, the padlock hole being provided on the padlock body, and the second direction being perpendicular to the first direction; the lever portion of the padlock piece is aligned with the slot in the first direction when the hand wheel is in the open position, the lever portion of the padlock piece is able to move through the slot to move the padlock body to an outside of the housing; When the hand wheel is in the closed position, a stem of the padlock member is at least partially misaligned with the slot in the first direction, the stem of the padlock member is blocked so that the padlock body cannot move outside of the housing.

9. The handle module of claim 8, wherein, The handle module further comprises a guide member fixed to the housing, the guide member having a channel extending in the first direction, the padlock body being configured to move within the channel.

10. The handle module of claim 9, wherein, The guide member has a blocking block thereon, the padlock member has a padlock protrusion protruding from the padlock body in a third direction, the third direction being perpendicular to the first direction and the second direction, the blocking block being aligned with the padlock protrusion in the first direction.

11. The handle module of claim 1, wherein, An axial end surface of the hand wheel body has an indicator line thereon, the indicator line rotating with the hand wheel to indicate the position of the hand wheel.

12. A switch, characterized by Comprising: a body, the switch being in a closed state when the hand wheel is in a closed position, the switch being in an open state when the hand wheel is in an open position; The handle module according to any one of claims 1 to 11, the handle module being attached to the body.

13. The switch of claim 12, wherein, When the knob is in the first position, the switch is automatically controlled, when the knob is in the second position, the switch is manually controlled.

14. The switch of claim 12, wherein, The hand wheel is rotatable between the closed position, an intermediate position and the open position, when the hand wheel is in the intermediate position, the slider is aligned with the recess to enable the slider to be inserted into the recess, the intermediate position being between the closed position and the open position.

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