Operating handle

Abstract

The utility model belongs to the technical field of switches, and particularly relates to an operating handle which comprises a joint part and a rotating part, the rotating part comprises a first rotating part and a second rotating part, the second rotating part is connected with the joint part through the first rotating part, one of the first rotating part and the second rotating part is provided with a groove, and the other one is provided with a boss. When the second rotating part is rotated, the boss and the groove are mutually jointed and separated, and when the motion torque of the three-station mechanism is smaller than or equal to the operation torque of the operation handle and the boss and the groove are mutually jointed, the first rotating part can be driven by the second rotating part to drive the joint part and the three-station mechanism to rotate; when the motion torque of the three-station mechanism is larger than the operation torque of the operation handle, the first rotating part, the joint part and the three-station mechanism do not rotate along with rotation of the second rotating part. According to the scheme, the service life of the three-station mechanism can be prolonged, quantitative analysis can be carried out, and the state of the mechanism can be accurately judged.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of switches, and particularly relates to an operating handle. BACKGROUND

[0002] In a power system, a three-position mechanism is crucial, and its three states of closing, opening and grounding are used for specific scenes. When the mechanism is in a certain state, it needs to be limited or locked to prevent misoperation from causing power accidents.

[0003] At present, the three-position mechanism is mainly operated by a manual handle. However, this mode is prone to damage to the limiting or locking mechanism due to over operation, shortens the service life of the equipment, increases the maintenance cost and replacement frequency, and the operating personnel mainly rely on observation of the mechanism and switch state to judge the operation, which is subjective and cannot be quantitatively analyzed, and it is difficult to accurately judge the mechanism state, which is not conducive to finding potential safety hazards. CONTENT OF THE UTILITY MODEL

[0004] The application aims to solve the problems in the prior art that the limiting or locking mechanism is damaged due to over operation, the service life of the equipment is shortened, the maintenance cost and replacement frequency are increased, and the mechanism state cannot be quantitatively analyzed and accurately judged, which is not conducive to finding potential safety hazards.

[0005] The application provides an operating handle for operating a three-position mechanism, which comprises: a joint part connected to the three-position mechanism at one end; a rotating part comprising a first rotating member and a second rotating member, the first rotating member is connected to the end of the joint part away from the three-position mechanism, the joint part can rotate with the rotation of the first rotating member, the second rotating member is arranged at the end of the first rotating member away from the joint part and connected to the first rotating member, one of the first rotating member and the second rotating member is provided with a groove, and the other is provided with a boss, the boss and the groove are engaged and separated from each other when the second rotating member is rotated; wherein, when the movement torque of the three-position mechanism is less than or equal to the operating torque of the operating handle, and the boss and the groove are engaged with each other, the first rotating member can rotate with the joint part and the three-position mechanism driven by the second rotating member; when the movement torque of the three-position mechanism is greater than the operating torque of the operating handle, the first rotating member, the joint part and the three-position mechanism do not rotate with the rotation of the second rotating member.

[0006] In an exemplary embodiment of the application, a plurality of grooves are arranged circumferentially on the side of the first rotating member close to the second rotating member; and a plurality of bosses are arranged circumferentially on the side of the second rotating member close to the first rotating member.

[0007] In an example embodiment of the present application, the rotating part further comprises a rotating body, the first rotating member and the second rotating member are sleeved outside the rotating body, the second rotating member is connected with the rotating body, the second rotating member can rotate with the rotating body, and the second rotating member can slide relative to the rotating body in the axial direction of the rotating body to make the convex and the concave engage with or separate from each other.

[0008] In an example embodiment of the present application, the rotating body comprises a guide rod, the first rotating member and the second rotating member are sleeved on the guide rod, the guide rod is provided with a key groove extending in the axial direction thereof, and a guide flat key is embedded in the key groove and connected with the guide rod, wherein a hub groove extending in the axial direction of the guide rod is arranged on the inner wall of the second rotating member, the guide flat key is embedded in the hub groove away from the key groove, and the second rotating member can slide in the extension direction of the guide flat key.

[0009] In an example embodiment of the present application, the side of the rotating body away from the joint part is provided with an abutting position, the rotating part further comprises an elastic member, one end of the elastic member abuts against the abutting position, the other end of the elastic member abuts against the end of the second rotating member away from the first rotating member, and the elastic member is compressed and deformed between the second rotating member and the abutting position.

[0010] In an example embodiment of the present application, the rotating part further comprises a gasket arranged between the second rotating member and the elastic member.

[0011] In an example embodiment of the present application, the rotating part further comprises a fastener, the fastener is threadedly connected with the portion of the guide rod inserted into the first rotating member, an annular retaining wall is arranged on the inner wall of the first rotating member, and the fastener is arranged on the side of the annular retaining wall close to the joint part.

[0012] In an example embodiment of the present application, the end of the first rotating member close to the joint part is provided with a clamping position, the end of the joint part away from the three-station mechanism is provided with a joint block, and the joint block can be clamped in the clamping position to connect the joint part with the first rotating member.

[0013] In an example embodiment of the present application, the operating handle further comprises a holding part, opposite ends of the holding part are respectively provided with a connecting end and a holding end, and the connecting end is detachably connected with the end of the rotating body away from the joint part.

[0014] In an exemplary embodiment of the present application, the operating handle further comprises: a first protective sleeve sleeved at the joint of the connecting portion and the first rotating member; a second protective sleeve sleeved at the joint of the rotating body and the connecting end; and a third protective sleeve sleeved at the outer side of the rotating portion and covering part of the first protective sleeve and the second protective sleeve.

[0015] The operating handle of the present application has at least the following beneficial effects:

[0016] When the motion torque of the three-position mechanism is less than or equal to the preset operating torque of the operating handle, and the convex platform and the concave groove are in the state of mutual engagement, the first rotating member can rotate in the same direction as the second rotating member under the rotation of the second rotating member, so as to drive the connecting portion connected with the first rotating member to rotate, and further drive the connecting portion and the three-position mechanism to rotate synchronously, so as to achieve the switching of the three-position mechanism between different operating states. When the motion torque of the three-position mechanism is greater than the operating torque of the operating handle, that is, in the limiting or locking state, even if the second rotating member continues to rotate, the first rotating member, the connecting portion and the three-position mechanism will not rotate, and at this time, the second rotating member is in an idle state and cannot exert driving force on the three-position mechanism to make it move. By using the different operating torque of the operating handle and the motion torque of the three-position mechanism, the three-position mechanism is effectively protected, and damage caused by overload operation is avoided, thereby greatly improving the service life of the three-position mechanism. In addition, the operating torque of the operating handle has been preset, and the operator does not need to measure it by using a torque wrench, so that the operation process is more simple and efficient. At the same time, by comparing and analyzing the operating torque and the motion torque of the three-position mechanism, it can be accurately and quantitatively judged whether the three-position mechanism has a jamming phenomenon and whether the closing and opening have reached an accurate and in-place state, greatly improving the accuracy and reliability of the judgment.

[0017] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0018] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings incorporated into the specification and constituting a part of the specification show embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0020] Figure 1A structural schematic diagram of the operation handle in a front view is shown.

[0021] Figure 2 A structural schematic diagram of the operation handle in a top view is shown.

[0022] Figure 3 A structural schematic diagram of the joint part is shown.

[0023] Figure 4 A structural schematic diagram of the joint part is shown. Figure 1 A cross-sectional structural schematic diagram of the operation handle along an A-A' cross-sectional line is shown.

[0024] Figure 5 A cross-sectional structural schematic diagram of the operation handle along an A-A' cross-sectional line is shown. Figure 4 An enlarged structural schematic diagram of the first rotating member and the second rotating member at C is shown.

[0025] Figure 6 A structural schematic diagram of the first rotating member is shown.

[0026] Figure 7 A structural schematic diagram of the second rotating member is shown.

[0027] Figure 8 A cross-sectional structural schematic diagram of the operation handle along a B-B' cross-sectional line is shown. Figure 2

[0028] A structural schematic diagram of the guide rod is shown. Figure 9

[0029] A structural schematic diagram of the holding part is shown. Figure 10

[0030] A cross-sectional structural schematic diagram of the operation handle along a D-D' cross-sectional line is shown. Figure 11 Figure 4 A structural schematic diagram of the connection end and the guide tail segment at D is shown.

[0031] Legend of reference signs:

[0032] 10, operation handle;

[0033] 100, joint part; 110, joint head part; 111, connection hole; 120, joint middle part; 130, joint tail part; 131, joint block; 1310, first through hole;

[0034] ​210, first rotating member; 211, groove; 212, first guide hole; 213, first clamping block; 214, second clamping block; 215, clamping position; 220, second rotating member; 221, boss; 222, second guide hole; 223, hub groove; 230, rotating body; 231, guide rod; 2310, first guide column; 23101, second guide column; 2311, middle guide section; 2312, tail guide section; 23120, first limiting block; 23121, second limiting block; 23122, clamping position; 2313, key groove; 232, guide key; 240, elastic member; 250, gasket;

[0035] 300, holding part; 310, connecting end; 311, connecting block; 3110, second through hole; 320, holding end; 330, adapter rod;

[0036] 400, first protective sleeve; 500, second protective sleeve; 600, third protective sleeve. DETAILED DESCRIPTION

[0037] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example implementations to those skilled in the art.

[0038] In the present application, the terms "first", "second", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0039] In the present application, unless otherwise explicitly specified and limited, the terms "assembly", "connection" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.

[0041] Figure 1 A structural schematic diagram of the operating handle in a front view is shown. Figure 2 A structural schematic diagram of the operating handle in a top view is shown.

[0042] Referring to Figure 1 and Figure 2 , the embodiments of the application provide an operating handle 10, which can be used for closing, opening or grounding operation of a three-position mechanism (not shown in the figure) so that the three-position mechanism can be in different use states.

[0043] Figure 3 A structural schematic diagram of the engaging portion is shown.

[0044] Referring to Figure 1 and Figure 3 , the operating handle 10 includes an engaging portion 100. The engaging portion 100 can adopt a cylindrical structure, which has an engaging head portion 110, an engaging middle portion 120 and an engaging tail portion 130 connected with each other. The engaging head portion 110 is provided with a connecting hole 111, which is opened in a direction perpendicular to the radial direction of the engaging portion 100, i.e. perpendicular to the axial direction of the engaging portion 100. The connecting hole 111 can be configured as an opening hole matched with the output shaft of the three-position mechanism, for example, the connecting hole 111 can be a hexagonal hole, an octagonal hole, a triangular hole, etc. That is, the engaging portion 100 is connected with the output shaft of the three-position mechanism through the connecting hole 111 on the engaging head portion 110, and the engaging portion 100 can drive the three-position mechanism to rotate.

[0045] Figure 4 A structural schematic diagram of the engaging portion along the A-A' section line in Figure 1 is shown. Figure 5 A structural schematic diagram of the engaging portion along the A-A' section line in Figure 4 is shown.

[0046] The operating handle 10 further includes a rotating portion (not labeled in the figure), which can include a first rotating member 210 and a second rotating member 220, as shown in Figure 4 and Figure 5The first rotating member 210 is connected to the end of the engaging part 100 away from the three-position mechanism, i.e. the first rotating member 210 can be connected to the engaging tail part 130. By connecting the engaging tail part 130 to the first rotating member 210, the engaging part 100 can be rotated along with the rotation of the first rotating member 210.

[0047] Referring to Figure 5 As shown in the figure, the second rotating member 220 is arranged at the end of the first rotating member 210 away from the engaging part 100, and the side of the second rotating member 220 facing the first rotating member 210 is in contact with the side of the first rotating member 210 away from the engaging part 100. One of the first rotating member 210 and the second rotating member 220 is provided with a groove 211, and the other is provided with a boss 221. When the second rotating member 220 is rotated, the boss 221 and the groove 211 can be engaged and separated from each other, i.e. during the rotation of the second rotating member 220, the boss 221 can be inserted into the groove 211 or the boss 221 can be moved out of the groove 211.

[0048] When the movement torque of the three-position mechanism is less than or equal to the operating torque, the second rotating member 220 is rotated, so that the boss 221 or the groove 211 on the second rotating member 220 is rotated in the rotation direction of the second rotating member 220, and then the boss 221 or the groove 211 on the second rotating member 220 is inserted into the groove 211 or the boss 221 of the first rotating member 210. At this time, when the second rotating member 220 is rotated again, the connection mode between the second rotating member 220 and the first rotating member 210 is changed from contact to clamping, so that the second rotating member 220 can drive the first rotating member 210 to rotate during the rotation of the second rotating member 220. Since the first rotating member 210 is connected to the engaging part 100, the engaging part 100 will also rotate along with the first rotating member 210, thereby moving the three-position mechanism.

[0049] After the three-position mechanism is closed, opened or grounded, the three-position mechanism is limited or locked, so that the movement torque of the three-position mechanism is greater than the operating torque of the operating handle 10. After the boss 221 or the groove 211 in the second rotating member 220 is in contact with the groove 211 or the boss 221 in the first rotating member 210, the second rotating member 220 cannot drive the first rotating member 210 to rotate because the movement torque of the three-position mechanism is greater than the operating torque of the operating handle 10. The second rotating member 220 is idling and cannot drive the first rotating member 210, the engaging part 100 and the three-position mechanism to rotate.

[0050] By controlling the operation torque of the operation handle 10 to be different from the movement torque of the three-position mechanism, the three-position mechanism is effectively protected, and damage caused by overload operation is avoided, thereby greatly improving the service life of the three-position mechanism. In addition, the operation torque of the operation handle 10 is preset, and the operator does not need to measure it by using a torque wrench, so that the operation process is more simple and efficient. At the same time, by comparing and analyzing the operation torque and the movement torque of the three-position mechanism, whether the three-position mechanism has a jamming phenomenon and whether the opening and closing are in an accurate and in-place state can be accurately and quantitatively judged, greatly improving the accuracy and reliability of the judgment.

[0051] Figure 6 A structural schematic view of the first rotating member is shown. Figure 7 A structural schematic view of the second rotating member is shown.

[0052] In some embodiments of the present application, as shown in Figure 6 and Figure 7 , the first rotating member 210 and the second rotating member 220 can both be cylindrical structures, and the first rotating member 210 and the second rotating member 220 are both hollow structures. The side of the first rotating member 210 close to the second rotating member 220 is provided with a plurality of grooves 211 in the circumferential direction, and the side of the second rotating member 220 close to the first rotating member 210 is provided with a plurality of convexly arranged bosses 221 in the circumferential direction.

[0053] It can be understood that the first rotating member 210 and the second rotating member 220 can also adopt a solid structure, as long as they can rotate relative to each other.

[0054] For example, as shown in Figure 6 and Figure 7 , the side of the first rotating member 210 facing the second rotating member 220 is provided with four grooves 211 in the circumferential direction, and the two grooves are arranged opposite to each other, and the side of the second rotating member 220 facing the first rotating member 210 is provided with two convexly arranged bosses 221 in the circumferential direction. When the boss 221 is not in contact with the groove 211, the boss 221 is in contact with the surface of the first rotating member 210 which is not provided with the groove 211, and by rotating the second rotating member 220, the boss 221 on the second rotating member 220 rotates on the surface of the first rotating member 210. After rotating by a certain angle, the boss 221 can slide into the groove 211, so that the boss 221 and the groove 211 are engaged with each other.

[0055] It should be noted that the side of the first rotating member 210 facing the second rotating member 220 can also be provided with two or six oppositely arranged grooves 211, as long as the boss 221 on the second rotating member 220 can slide into the groove 211.

[0056] It can be understood that, by providing four or six grooves 211 on the first rotating member 210, the rotating range of the second rotating member 220 can be reduced, so that the boss 221 on the second rotating member 220 can be slid into the groove 211 more quickly to drive the first rotating member 210 to rotate.

[0057] In addition, the cross-sectional area of the first rotating member 210 facing the second rotating member 220 is the same as the cross-sectional area of the second rotating member 220 facing the first rotating member 210.

[0058] In some embodiments of the present application, referring to Figure 6 As shown in the figure, the first rotating member 210 includes a first guide hole 212, and the hole depth direction of the first guide hole 212 is the same as the axis direction of the first rotating member 210. Referring to Figure 7 As shown in the figure, the second rotating member 220 includes a second guide hole 222, and the hole depth direction of the second guide hole 222 is the same as the axis direction of the second rotating member 220.

[0059] Figure 8 A cross-sectional structure schematic view along the B-B' section line is shown in Figure 2

[0060] In some embodiments of the present application, referring to Figure 8 As shown in the figure, the rotating part further includes a rotating body 230. One end of the rotating body 230 is inserted into the first guide hole 212 and the second guide hole 222, that is, the first rotating member 210 and the second rotating member 220 can be sleeved on the outside of the rotating body 230. The second rotating member 220 is connected with the rotating body 230, and the second rotating member 220 can rotate with the rotating body 230, and the second rotating member 220 can relatively slide in the axial direction of the rotating body 230 relative to the rotating body 230, so that the boss 221 on the second rotating member 220 and the groove 211 on the first rotating member 210 are engaged and separated, so as to switch the connection mode of the first rotating member 210 and the second rotating member 220.

[0061] Figure 9 A structure schematic view of the guide rod is shown in

[0062] In some embodiments of the present application, referring to Figure 8 and Figure 9 ​As shown, the rotating body 230 comprises a guide rod 231. The guide rod 231 can adopt a cylindrical structure. It has a guide head segment 2310, a guide middle segment 2311 and a guide tail segment 2312 connected with each other. The guide head segment 2310 comprises a first guide column 23100 and a second guide column 23101 connected with each other, the first guide column 23100 is arranged at one side of the second guide column 23101 close to the joint 100, and the longitudinal cross-sectional area of the first guide column 23100 is smaller than that of the second guide column 23101, that is, the joint of the first guide column 23100 and the second guide column 23101 is stepped.

[0063] It is worth mentioning that, referring to Figure 8 and Figure 9 As shown, the longitudinal cross-sectional area of the second guide column 23101 is smaller than that of the guide middle segment 2311, that is, the joint of the second guide column 23101 and the guide middle segment 2311 is stepped.

[0064] Referring to Figure 8 As shown, the first rotating part 210 is sleeved outside the first guide column 23100, the second guide column 23101 and part of the guide middle segment 2311, and the step formed by the second guide column 23101 and the guide middle segment 2311 can effectively prevent the first rotating part 210 from moving away from the joint 100. The second rotating part 220 is sleeved on the guide middle segment 2311 and can slide along the axial direction of the guide rod 231.

[0065] Referring to Figure 9 As shown, the guide middle segment 2311 is provided with a key groove 2313 extending in the axial direction thereof. The rotating body 230 further comprises a guide flat key 232, one end of which is embedded in the key groove 2313 of the guide middle segment 2311 and connected with the guide rod 231. The guide flat key 232 can be connected by screws, rivets or other fixing structures.

[0066] For example, a plurality of threaded holes (not shown in the figure) are formed in the key groove 2313 of the guide middle segment 2311, and the guide flat key 232 is fixed in the key groove 2313 by screws, so that the guide flat key 232 is fixedly connected with the guide rod 231.

[0067] In some embodiments of the present application, referring to Figure 7As shown, the inner wall of the second rotating member 220 is provided with a hub groove 223 extending in the axial direction of the guide rod 231, and the guide flat key 232 is embedded in the hub groove 223 away from the key groove 2313. When the guide rod 231 is rotated, the second rotating member 220 is rotated in the same direction as the guide rod 231 under the action of the guide flat key 232. When the boss 221 on the second rotating member 220 slides into the groove 211 on the first rotating member 210, the second rotating member 220 will slide along the extension direction of the guide flat key 232. In addition, when the boss 221 on the second rotating member 220 slides out of the groove 211 on the first rotating member 210, the second rotating member 220 will slide along the extension direction of the guide flat key 232. That is, the guide flat key 232 can not only drive the second rotating member 220 to rotate, but also limit the sliding of the second rotating member 220.

[0068] In some embodiments of the present application, the first guide column 23100 in the guide head section 2310 is provided with external threads (not shown in the figure). The rotating part further includes a fastener (not shown in the figure), the inner wall of the fastener is provided with internal threads, and the fastener is connected with the first guide rod 231 through threads. The inner wall of the first rotating member 210 is provided with an annular retaining wall (not shown in the figure), and the fastener is arranged on the side of the annular retaining wall close to the joint 100. The fastener can be used to connect the guide rod 231 with the first rotating member 210, so as to avoid the first rotating member 210 from falling off the guide rod 231.

[0069] In some embodiments of the present application, referring to Figure 8 As shown, the cross-sectional area of the guide tail section 2312 is greater than that of the guide middle section 2311, that is, an abutting position (not shown in the figure) is formed between the guide middle section 2311 and the guide tail section 2312. The rotating part further includes an elastic member 240, which can be a spring, or a structure of rubber, latex, etc.

[0070] Wherein, one end of the elastic member 240 abuts against the abutting position, and the other end of the elastic member 240 abuts against the end of the second rotating member 220 away from the first rotating member 210, that is, the elastic member 240 is arranged between the guide tail section 2312 and the second rotating member 220, and the elastic member 240 is compressed between the second rotating member 220 and the abutting position, so that the elastic member 240 has elastic potential energy between the guide tail section 2312 and the second rotating member 220, and exerts a pushing force on the second rotating member 220 to move towards the joint 100, so that the second rotating member 220 and the first rotating member 210 are always in close contact.

[0071] When the boss 221 is about to be inserted into the groove 211, the pushing force exerted by the elastic member 240 on the second rotating member 220 will drive the second rotating member 220 to slide along the guide flat key 232, so that the boss 221 is inserted into the groove 211 more quickly.

[0072] In some embodiments of the present application, as shown in Figure 5 and Figure 8 , the rotating part further comprises a gasket 250, which is sleeved on the guide rod 231 and located between the second rotating member 220 and the elastic member 240. By changing the thickness of the gasket 250, the operating torque of the operating handle 10 can be adjusted, that is, the operating handle 10 with different operating torques can be designed according to different three-position mechanisms.

[0073] It is worth mentioning that the operating torque of the operating handle 10 can also be adjusted by changing the structure of the joint part 100, so that the operating handle 10 can be applied to different three-position mechanisms, thereby improving the adaptability of the operating handle 10.

[0074] In some embodiments of the present application, as shown in Figure 3 and Figure 6 , the first end of the first rotating member 210 close to the joint part 100 is provided with a first clamping block 213 and a second clamping block 214, and the first clamping block 213 and the second clamping block 214 are oppositely arranged and both are arc-shaped structures.

[0075] The first clamping block 213 is provided with a first countersunk hole (not marked in the figure), and the second clamping block 214 is provided with a first threaded hole (not marked in the figure), and the first countersunk hole on the first clamping block 213 is oppositely arranged with the first threaded hole on the second clamping block 214.

[0076] The first clamping block 213 and the second clamping block 214 form a clamping position 215 therebetween, and the joint tail part 130 is provided with a joint block 131, and the joint block 131 is provided with a first through hole 1310 penetratingly arranged. When the joint block 131 is clamped between the first clamping block 213 and the second clamping block 214, the first through hole 1310 on the joint block 131 corresponds to the first countersunk hole on the first clamping block 213 and the first threaded hole on the second clamping block 214. The screw passes through the first countersunk hole on the first clamping block 213 and the first through hole 1310 on the joint block 131 in sequence, and is threadedly connected with the first threaded hole on the second clamping block 214, so as to detachably arrange the joint block 131 between the first clamping block 213 and the second clamping block 214, so that the first rotating member 210 can drive the joint part 100 to rotate during rotation.

[0077] It is understandable that the first rotating member 210 and the connecting part 100 can also be connected in other detachable ways, such as a hinge structure, as long as the connecting part 100 can rotate with the first rotating member 210.

[0078] Figure 10 A schematic diagram of the gripping part is shown. Figure 11 It shows Figure 4 Enlarged structural diagram of the connection end and guide tail section at point D.

[0079] In some embodiments of this application, see Figure 10 and Figure 11 As shown, the operating handle 10 also includes a grip portion 300. The grip portion 300 has a connecting end 310 and a grip end 320 at opposite ends, and the connecting end 310 is connected to the guide tail section 2312 of the guide rod 231.

[0080] The guide tail section 2312 includes a first limiting block 23120 and a second limiting block 23121. The first limiting block 23120 and the second limiting block 23121 are spaced apart from each other, and a clamping position 23122 is formed between the first limiting block 23120 and the second limiting block 23121.

[0081] For example, the first limiting block 23120 is provided with a second threaded hole (not shown in the figure), and the second limiting block 23121 is provided with a second countersunk hole (not shown in the figure). The connecting end 310 is provided with a connecting block 311, and the connecting block 311 is provided with a through hole 3110. The connecting block 311 can be engaged in the clamping position 23122. At this time, the second through hole 3110 on the connecting block 311 corresponds to the second threaded hole on the first limiting block 23120 and the second countersunk hole on the second limiting block 23121. The screw passes through the second countersunk hole on the second limiting block 23121 and the second through hole 3110 on the connecting block 311 in sequence, and is threadedly connected to the second threaded hole on the first limiting block 23120 to fix the connecting block 311 between the first limiting block 23120 and the second limiting block 23121. In this way, the rotating part can be driven by rotating the gripping part 300, making rotation more convenient.

[0082] It is understandable that the connecting end 310 and the guide tail section 2312 of the guide rod 231 can also be connected in other ways, such as by a hinge, as long as the guide rod 231 can rotate under the drive of the connecting end 310.

[0083] See Figure 10 As shown, the grip portion 300 also includes an adapter rod 330 for connecting the grip end 320 and the connecting end 310. The adapter rod 330 is L-shaped to facilitate the operator to grip the grip end 320 better.

[0084] In some embodiments of the present application, referring to Figure 8 The operation handle 10 further comprises a first protective sleeve 400, a second protective sleeve 500 and a third protective sleeve 600. The first protective sleeve 400 is sleeved on the connection between the joint tail 130 and the first rotating member 210 to avoid the connection between the joint tail 130 and the first rotating member 210 from clamping the operator by mistake, thereby playing a protective role. The second protective sleeve 500 is sleeved on the connection between the guide tail segment 2312 and the connecting end 310 to avoid the connection between the guide tail segment 2312 and the connecting end 310 from clamping the operator by mistake, thereby playing a protective role, and further avoiding the screw from falling off to ensure the connection stability of the guide tail segment 2312 and the connecting end 310. The third protective sleeve 600 is sleeved on the outside of the rotating part, covering part of the first protective sleeve 400 and covering the second protective sleeve 500. The third protective sleeve 600 can avoid the elastic member 240 from clamping the operator by mistake, thereby playing a protective role.

[0085] The working principle of the present application is as follows:

[0086] When the movement torque of the three-station mechanism is less than or equal to the operation torque of the operation handle 10, the rotating holding part 300 is rotated, and the guide rod 231 is rotated under the action of the connecting end 310, and the guide flat key 232 on the guide rod 231 drives the second rotating member 220 to rotate. After rotating a certain angle, the second rotating member 220 slides along the extension direction of the guide flat key 232 under the action of the elastic member 240, so that the boss 221 on the second rotating member 220 is inserted into the groove 211 on the first rotating member 210, and the first rotating member 210 is driven by the second rotating member 220 to rotate along the rotating direction of the second rotating member 220. The joint part 100 is driven by the first rotating member 210 to rotate, thereby driving the three-station mechanism to move. When the three-station mechanism is closed or opened to the position, the three-station mechanism is locked or positioned, and the movement torque of the three-station mechanism is greater than the operation torque of the operation handle 10. At this time, the boss 221 of the second rotating member 220 is removed from the groove 211 of the first rotating member 210, and the second rotating member 220 moves on the guide flat key 232 away from the three-station mechanism. Since the movement torque of the three-station mechanism is greater than the operation torque of the operation handle 10, the second rotating member 220 cannot drive the first rotating member 210 and the joint part 100 to rotate, thereby the three-station mechanism cannot move. Continue to rotate the holding part 300, and the second rotating member 220 is in an idle state, and cannot drive the first rotating member 210 and the joint part 100 to rotate.

[0087] Thus, the operation handle 10 does not need to use a torque wrench for measurement, and the operation is more convenient. The operation torque of the operation handle 10 can be used to determine whether the three-position mechanism is in place, reduce the loss of the three-position mechanism body, and improve the service life.

[0088] In the description of the present specification, the description referring to the terms "some embodiments", "exemplarily", and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in the present specification and the features of the different embodiments or examples can be combined and modified by those skilled in the art without contradiction.

[0089] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements, and variations to the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and the specification of the present application shall be within the scope of the present application.

Claims

1. An operating handle for operating a three-station mechanism, characterized in that The operation handle comprises: a joint part, one end of which is connected with the three-position mechanism; a rotating part, comprising a first rotating member and a second rotating member, the first rotating member being connected with one end of the joint part away from the three-position mechanism, the joint part being capable of rotating with the first rotating member, the second rotating member being arranged at one end of the first rotating member away from the joint part and connected with the first rotating member, one of the first rotating member and the second rotating member being provided with a groove, and the other being provided with a boss, the boss and the groove being engaged with and separated from each other when the second rotating member is rotated; wherein, when the movement torque of the three-position mechanism is less than or equal to the operation torque of the operation handle, and the boss and the groove are engaged with each other, the first rotating member is capable of rotating with the joint part and the three-position mechanism driven by the second rotating member; when the movement torque of the three-position mechanism is greater than the operation torque of the operation handle, the first rotating member, the joint part and the three-position mechanism do not rotate with the rotation of the second rotating member.

2. The operating handle of claim 1, wherein The first rotating member is provided with a plurality of grooves on the side close to the second rotating member in the circumferential direction; The second rotating member is provided with a plurality of bosses arranged in protrusion on the side close to the first rotating member in the circumferential direction.

3. The operating handle of claim 2, wherein, The rotating part further comprises a rotating body, the first rotating member and the second rotating member are both arranged outside the rotating body, the second rotating member is connected with the rotating body, the second rotating member is capable of rotating with the rotating body, and the second rotating member is capable of relatively sliding with respect to the rotating body in the axial direction of the rotating body, so as to make the boss and the groove engaged with and separated from each other.

4. The operating handle of claim 3, wherein, The rotating body comprises: a guide rod, the first rotating member and the second rotating member are both arranged on the guide rod, and the guide rod is provided with a key groove extending in the axial direction thereof; a guide flat key, which is embedded in the key groove and connected with the guide rod; wherein, the second rotating member is provided with a hub groove extending in the axial direction of the guide rod on the inner wall thereof, the guide flat key is embedded in the hub groove on the side away from the key groove, and the second rotating member is capable of sliding in the extension direction of the guide flat key.

5. The operating handle of claim 3, wherein, The rotating body is provided with an abutting position on the side away from the joint part; The rotating part further comprises an elastic member, one end of the elastic member is in abutment with the abutting position, the other end of the elastic member is in abutment with one end of the second rotating member away from the first rotating member, and the elastic member is compressed and deformed between the second rotating member and the abutting position.

6. The operating handle of claim 5, wherein, The rotating part further comprises a gasket, which is arranged between the second rotating member and the elastic member.

7. The operating handle of claim 4, wherein, The rotating part further comprises a fastener, which is threadedly connected with the portion of the guide rod inserted into the first rotating member; the first rotating member is provided with an annular retaining wall on the inner wall thereof, and the fastener is arranged on the side of the annular retaining wall close to the joint part.

8. The operating handle of claim 1, wherein, The first rotating member is provided with a clamping position on the end close to the joint part; The joint part is provided with a joint block at one end away from the three-position mechanism, which can be clamped in the clamping position to connect the joint part with the first rotating member.

9. The operating handle of claim 3, wherein, The operating handle further comprises a holding part, the opposite ends of which are respectively provided with a connecting end and a holding end, and the connecting end is detachably connected with one end of the rotating main body away from the joint part.

10. The operating handle of claim 9, wherein, The operating handle further comprises: a first protective sleeve, which is sleeved at the joint between the joint part and the first rotating member; a second protective sleeve, which is sleeved at the joint between the rotating main body and the connecting end; a third protective sleeve, which is sleeved at the outer side of the rotating part and covers part of the first protective sleeve and the second protective sleeve.

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