Wrench sleeve head and operation wrench with same

Abstract

The invention provides a wrench sleeve head and an operation wrench with the wrench sleeve head, and the wrench sleeve head comprises a mounting seat, a first end of the mounting seat is provided with a driving connecting part; the clamping jaw set is arranged at the second end of the mounting base and comprises a plurality of movable clamping plates, the movable clamping plates extend in the axial direction of the mounting base, the movable clamping plates are arranged in the circumferential direction of the mounting base and can move in the radial direction of the mounting base, and a clamping inner hole is defined by the inner surfaces of the movable clamping plates jointly; the outer surfaces of the multiple movable clamping plates jointly define a clamping outer cylinder. And the adjusting part is movably arranged on the mounting seat, and the adjusting part is in driving connection with the clamping jaw set so as to drive the multiple movable clamping plates to be close to or away from each other. Through the technical scheme provided by the invention, the problem of low operation and maintenance efficiency of an operation wrench in the related technology can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power operation and maintenance, and in particular to a wrench head and an operating wrench having the same. Background Art

[0002] In the daily operation and maintenance of power systems, electrical cabinets and switch cabinets play a vital role. These cabinets contain complex electrical equipment and control devices to control power distribution, protect circuits from overloads and short circuits, and monitor and adjust power parameters to ensure the normal operation of the power system. For the operation and maintenance of electrical cabinets and switch cabinets, operators usually need to be equipped with a set of professional tools to deal with different types of electrical equipment and connectors. Among them, the operating wrench is a key tool for tasks such as switch operation, tightening and loosening electrical connectors, and adjusting equipment parameters.

[0003] In the relevant technology, operating wrenches include fixed wrenches, universal wrenches and multifunctional wrenches. Among them, fixed wrenches are simple in design and suitable for a single type of lock hole. Operators can quickly open and close the lock hole by using such tools in specific electrical equipment scenarios, but their functions are single and their use is restricted. In order to meet the operational requirements of multi-specification connectors in operation and maintenance, some universal wrenches with adaptability and multifunctional wrenches with adjustment functions have also appeared on the market.

[0004] However, in actual work, the structural design and equipment models of the cabinets are different, and the connector specifications are diverse (for example). The fixed wrench of a single specification in the related art is difficult to meet the needs, and the switching operation efficiency of the universal wrench and the multi-function wrench in the related art is low, which makes the operation and maintenance efficiency of the operating wrench in the related art low. Summary of the invention

[0005] The present invention provides a wrench head and an operating wrench having the same, so as to solve the problem of low operation and maintenance efficiency of the operating wrench in the related art.

[0006] According to one aspect of the present invention, a wrench head is provided, which includes: a mounting seat, a first end of which is provided with a driving connection portion; a jaw group, which is arranged at the second end of the mounting seat, and the jaw group includes a plurality of movable clamps, the movable clamps extend along the axial direction of the mounting seat, the plurality of movable clamps are arranged along the circumferential direction of the mounting seat, the movable clamps can move along the radial direction of the mounting seat, the inner surfaces of the plurality of movable clamps are jointly arranged to form a clamping inner hole, and the outer surfaces of the plurality of movable clamps are jointly arranged to form a clamping outer cylinder; an adjusting member, which is movably arranged on the mounting seat, and the adjusting member is drivingly connected to the jaw group to drive the plurality of movable clamps to move closer to or away from each other.

[0007] Furthermore, the mounting seat has an accommodating cavity, and the adjusting member includes: a rotating member, which is rotatably arranged on the mounting seat, and the rotation axis of the rotating member extends along the radial direction of the mounting seat; a transmission plate, which is rotatably arranged in the accommodating cavity, and the rotation axis of the transmission plate extends along the axial direction of the mounting seat, the rotating member extends into the accommodating cavity and is drivingly connected to the transmission plate, and the transmission plate is drivingly connected to a plurality of movable splints.

[0008] Furthermore, the rotating member includes: a rotating seat, which is rotatably inserted into the mounting seat; a driving bevel gear, which is arranged at one end of the rotating seat's axis facing the mounting seat, and a driven bevel gear is arranged on the side of the transmission plate away from the clamping jaw group, and the driving bevel gear is meshed with the driven bevel gear; and a handle, which is arranged at one end of the rotating seat's axis facing away from the mounting seat.

[0009] Furthermore, an avoidance hole is provided on the mounting seat, annular protrusions are provided at both ends of the rotating seat, the middle part of the rotating seat is penetrated by the avoidance hole, and the outer diameter of the annular protrusion is larger than the inner diameter of the avoidance hole.

[0010] Furthermore, a plurality of guide grooves are provided at the second end of the mounting seat, the plurality of guide grooves are arranged along the circumferential direction of the mounting seat, and the guide grooves extend along the radial direction of the mounting seat. The clamping jaw group also includes a plurality of guide seats arranged one-to-one corresponding to the plurality of guide grooves, the guide seats are movably arranged in the guide grooves along the extension direction of the guide grooves, and a plurality of movable clamps are connected one-to-one correspondingly to the plurality of guide seats.

[0011] Furthermore, an Archimedes curve groove is provided on one side of the transmission disc facing the clamping jaw group, a plurality of transmission teeth are provided on one side of the guide seat facing the transmission disc, the plurality of transmission teeth are arranged along the radial direction of the mounting seat, and a avoidance opening connected to the accommodating cavity is provided at the second end of the mounting seat, and the plurality of transmission teeth are penetrated through the avoidance opening and meshed with the Archimedes curve groove.

[0012] Further, the mounting seat includes a hood body and a cover body that are detachably connected, the hood body and the cover body are arranged to form a accommodating cavity, the driving connection part is arranged on the side of the cover body away from the hood body, the clamping jaw group is arranged on the side of the cover body away from the cover body, and the rotating part is rotatably passed through the cover body; and / or, a positioning cylinder is arranged on the inner wall of the mounting seat, the positioning cylinder is coaxially arranged with the mounting seat, the transmission disk is rotatably mounted on the positioning cylinder, and the positioning cylinder has a notch to avoid the rotating part.

[0013] Further, the driving connection part includes: an insertion rod, which is arranged at the first end of the mounting seat and extends along the axial direction of the mounting seat, and a receiving groove is arranged on the outer side wall of the insertion rod; a marble, which is movably arranged in the receiving groove along the depth direction of the receiving groove, and the marble has a clamping position protruding from the outer side wall of the insertion rod and an avoidance position retracted into the receiving groove; an elastic member, which is arranged between the insertion rod and the marble to apply a reset force to the marble to move to the clamping position.

[0014] According to another aspect of the present invention, an operating wrench is provided, comprising: an electric drill; a wrench head, wherein a driving connection portion of the wrench head is detachably connected to a driving end of the electric drill, and the wrench head is the wrench head provided above.

[0015] Furthermore, the operating wrench also includes a telescopic rod, which is detachably arranged at the driving end, and the driving connecting part is detachably connected to the end of the telescopic rod facing away from the electric drill; the telescopic rod includes a connecting rod, a movable sleeve and a locking piece, the connecting rod is detachably arranged at the driving end, the movable sleeve is movably sleeved on the connecting rod along the extension direction of the connecting rod, the driving connecting part is detachably connected to the end of the movable sleeve facing away from the electric drill, the locking piece is arranged between the connecting rod and the movable sleeve, and the locking piece has a locked state and an unlocked state. When the locking piece is in the locked state, the locking piece restricts the movement of the movable sleeve relative to the connecting rod, and when the locking piece is in the unlocked state, the locking piece allows the movable sleeve to move relative to the connecting rod.

[0016] According to the technical solution of the present invention, the wrench head includes a mounting seat, a jaw group and an adjusting member. When the wrench head is connected to the inner hole of the joint, a plurality of movable splints are extended into the inner hole of the joint, and the adjusting member is used to drive the jaw group to move the plurality of movable splints away from each other until the plurality of movable splints abut against the wall of the inner hole of the joint. When the wrench head is connected to the outer hole of the joint, the plurality of movable splints are sleeved on the outer side of the joint, and the adjusting member is used to drive the jaw group to move the plurality of movable splints closer to each other until the plurality of movable splints abut against the outer wall of the joint. Therefore, in the power operation and maintenance with changeable operating scenarios, there is no need to frequently replace the wrench head. It is only necessary to operate the adjustment part to adjust the inner hole diameter of the clamping inner hole and the outer cylinder diameter of the clamping outer cylinder to achieve the adaptive operation of the wrench head for connectors of different calibers and types (such as hexagonal sockets, internal gear types, parent-child bidirectional connectors, etc.). This effectively reduces the time for tool switching and improves work efficiency. It allows operators to quickly switch between different models of electrical switch cabinets, significantly improving the convenience of operation and the operation and maintenance efficiency of the operating wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 An exploded view of a wrench head provided according to an embodiment of the present invention is shown;

[0019] Figure 2 It shows a schematic structural diagram of a wrench head provided according to an embodiment of the present invention;

[0020] Figure 3 An exploded view of an operating wrench provided according to an embodiment of the present invention is shown;

[0021] Figure 4 A structural schematic diagram of an operating wrench provided according to an embodiment of the present invention is shown.

[0022] The above drawings include the following reference numerals:

[0023] 1. Electric drill; 2. Connecting piece; 3. Telescopic rod; 31. Connecting rod; 32. Active sleeve; 33. Locking piece; 4. Wrench head; 41. Mounting seat; 411. Drive connection part; 4111. Insert rod; 412. Accommodating chamber; 413. Avoidance hole; 414. Guide groove; 415. Positioning cylinder; 4151. Notch; 42. Clamping jaw group; 421. Active splint; 4211. Clamping inner hole; 4212. Clamping outer cylinder; 43. Adjusting piece; 431. Rotating piece; 4311. Rotating seat; 4312. Annular protrusion; 5. Marble; 6. Locking bayonet; 7. Handle; 8. Active bevel gear; 9. Guide seat; 91. Transmission tooth; 10. Cover; 11. Transmission plate; 111. Driven bevel gear; 112. Archimedean curve groove; 12. Cover; 13. Bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that the reasons why the operation and maintenance efficiency of the operating wrench in the related art is low are as follows:

[0026] (1) Fixed wrenches can usually only fit a single type or specification of lock holes and joints, with poor operational flexibility and difficulty in handling electrical cabinets of various specifications. For example, a standard hexagonal wrench can only fit a hexagonal lock hole, but cannot fit a complex internal tooth structure or a two-way joint structure.

[0027] (2) Universal wrenches have a certain adaptability and can usually meet the needs of hexagonal or a small number of internal toothed joints, but the operation is simple and the functions are relatively limited. They cannot be adjusted automatically and lack a quick switching function. Operators need to manually switch or adjust accessories during use, which increases the workload and reduces work efficiency.

[0028] (3) The multifunctional wrench adds limited adjustment functions on the basis of the universal wrench. By replacing the wrench heads of different specifications, the adaptability range of connectors of different specifications can be expanded. However, the multifunctional wrench does not have the function of bidirectional expansion and contraction, and cannot adapt to the bidirectional parent-child connector, so the operator needs to frequently replace the wrench head to meet the operation requirements. In addition, the replacement method of the existing multifunctional wrench is still mostly manual, which is not only time-consuming, but also increases the difficulty of operation. It cannot fully exert its efficiency in the power operation and maintenance with changing operation scenarios.

[0029] Therefore, most of the operating wrenches in the related art are suitable for a single type of lock hole or joint (such as standard hexagonal or specific internal tooth type), and cannot adapt to various different specifications of joints such as internal hexagonal, internal tooth type, and parent-child two-way. In addition, the operating wrenches in the related art lack automatic adjustment and quick switching functions, so that operators need to carry a large number of tools and replace the operating wrenches or wrench gloves many times to adapt to the operation of different joints. The operation is highly complicated, which increases the workload and cost, is not conducive to efficient operation and maintenance management, and cannot meet the operation scenarios of multiple joints.

[0030] like Figures 1 to 4 As shown, an embodiment of the present invention provides a wrench glove head, which includes a mounting seat 41, a jaw group 42 and an adjusting member 43. A driving connection portion 411 is provided at the first end of the mounting seat 41, and the jaw group 42 is arranged at the second end of the mounting seat 41. The jaw group 42 includes a plurality of movable clamps 421, which extend along the axial direction of the mounting seat 41, and the plurality of movable clamps 421 are arranged along the circumferential direction of the mounting seat 41. The movable clamps 421 can move along the radial direction of the mounting seat 41, and the inner surfaces of the plurality of movable clamps 421 are jointly arranged to form a clamping inner hole 4211, and the outer surfaces of the plurality of movable clamps 421 are jointly arranged to form a clamping outer cylinder 4212. The adjusting member 43 can be movably arranged on the mounting seat 41, and the adjusting member 43 is drivingly connected to the jaw group 42 to drive the plurality of movable clamps 421 to move closer to or away from each other.

[0031] The wrench glove provided in this embodiment is used, and the wrench glove head includes a mounting seat 41, a jaw group 42 and an adjusting member 43. When the wrench glove head is connected to the inner hole of the joint, the multiple movable splints 421 are extended into the inner hole of the joint, and the jaw group 42 is driven by the adjusting member 43 to make the multiple movable splints 421 move away from each other until the multiple movable splints 421 abut against the wall of the inner hole of the joint. When the wrench glove head is connected to the outer hole of the joint, the multiple movable splints 421 are sleeved on the outside of the joint, and the jaw group 42 is driven by the adjusting member 43 to make the multiple movable splints 421 move closer to each other until the multiple movable splints 421 abut against the outer wall of the joint. Therefore, in power operation and maintenance with changeable operating scenarios, there is no need to frequently replace the wrench head. It is only necessary to operate the adjustment part 43 to adjust the inner hole diameter of the clamping inner hole 4211 and the outer cylinder diameter of the clamping outer cylinder 4212 to achieve adaptive operation of the wrench head for connectors of different calibers and types (such as hexagonal sockets, internal gear types, parent-child bidirectional connectors, etc.), which effectively reduces the time for tool switching and improves work efficiency. It allows operators to quickly switch between different models of electrical switch cabinets, significantly improving the convenience of operation and the operation and maintenance efficiency of operating the wrench.

[0032] It should be noted that the axial direction of the mounting seat 41 is the extension direction of the central axis of the mounting seat 41, the axial direction of the mounting seat 41 is the same as the axial direction of the clamping inner hole 4211, the radial direction of the mounting seat 41 refers to the direction perpendicular to the central axis of the mounting seat 41, and the circumferential direction of the mounting seat 41 refers to a circumferential direction, the center of the circumferential direction is located on the central axis of the mounting seat 41, and the plane where the circumferential direction is located is perpendicular to the central axis of the mounting seat 41.

[0033] like Figure 1 and Figure 2 As shown, the mounting seat 41 has a receiving cavity 412, and the adjusting member 43 includes a rotating member 431 and a transmission disc 11. The rotating member 431 is rotatably arranged on the mounting seat 41, and the rotation axis of the rotating member 431 extends along the radial direction of the mounting seat 41. The transmission disc 11 is rotatably arranged in the receiving cavity 412, and the rotation axis of the transmission disc 11 extends along the axial direction of the mounting seat 41. The rotating member 431 extends into the receiving cavity 412 and is drivingly connected to the transmission disc 11, and the transmission disc 11 is drivingly connected to a plurality of movable splints 421. By rotating the rotating member 431, the transmission disc 11 is driven to rotate. When the transmission disc 11 rotates, the transmission disc 11 drives the plurality of movable splints 421 to move closer to or away from each other. By arranging the transmission disc 11 in the receiving cavity 412, the mounting seat 41 is used to protect the transmission structure in the receiving cavity 412 (the transmission disc 11, the transmission structure of the transmission disc 11 and the plurality of movable splints 421, and the transmission structure of the rotating member 431 and the transmission disc 11).

[0034] like Figure 2As shown, the rotating member 431 includes a rotating seat 4311, a driving bevel gear 8 and a handle 7. The rotating seat 4311 is rotatably penetrated in the mounting seat 41. The driving bevel gear 8 is arranged at one end of the rotating seat 4311 facing the axis of the mounting seat 41. A driven bevel gear 111 is arranged on the side of the transmission disc 11 away from the clamping jaw group 42. The driving bevel gear 8 meshes with the driven bevel gear 111. The handle 7 is arranged at one end of the rotating seat 4311 away from the axis of the mounting seat 41. Specifically, by twisting the handle 7, the driving bevel gear 8 and the driven bevel gear 111 are meshed to make the rotating member 431 drive the transmission disc 11 to rotate.

[0035] like Figure 1 and Figure 2 As shown, the mounting seat 41 is provided with an avoidance hole 413, both ends of the rotating seat 4311 are provided with annular protrusions 4312, the middle part of the rotating seat 4311 is penetrated through the avoidance hole 413, and the outer diameter of the annular protrusion 4312 is larger than the inner diameter of the avoidance hole 413. The rotating seat 4311 with the above structure can prevent the rotating seat 4311 from falling out of the avoidance hole 413.

[0036] like Figure 1 As shown, the second end of the mounting seat 41 is provided with a plurality of guide grooves 414, the plurality of guide grooves 414 are arranged along the circumferential direction of the mounting seat 41, and the guide grooves 414 extend along the radial direction of the mounting seat 41. The clamping jaw group 42 further includes a plurality of guide seats 9 arranged one-to-one corresponding to the plurality of guide grooves 414, the guide seats 9 are movably arranged in the guide grooves 414 along the extending direction of the guide grooves 414, and the plurality of movable clamping plates 421 are connected one-to-one corresponding to the plurality of guide seats 9. The plurality of guide grooves 414 guide the plurality of guide seats 9, so as to improve the movement stability of the plurality of movable clamping plates 421 approaching or moving away from each other.

[0037] like Figure 1 and Figure 2 As shown, the side of the transmission disc 11 facing the clamping jaw group 42 is provided with an Archimedes curve groove 112, and the side of the guide seat 9 facing the transmission disc 11 is provided with a plurality of transmission teeth 91, and the plurality of transmission teeth 91 are arranged along the radial direction of the mounting seat 41. The second end of the mounting seat 41 is provided with an escape opening connected to the accommodating cavity 412, and the plurality of transmission teeth 91 are penetrated through the escape opening and meshed with the Archimedes curve groove 112. When the transmission disc 11 rotates, the plurality of transmission teeth 91 mesh with the Archimedes curve groove 112, and the plurality of movable splints 421 can be driven to move closer to or farther from each other.

[0038] like Figure 1 and Figure 2As shown, the mounting seat 41 includes a detachably connected cover body 10 and a cover body 12, the cover body 10 and the cover body 12 are arranged to form a receiving cavity 412, the driving connection part 411 is arranged on the side of the cover body 12 away from the cover body 10, the clamping claw group 42 is arranged on the side of the cover body 10 away from the cover body 12, and the rotating member 431 is rotatably penetrated through the cover body 10. The detachably connected cover body 10 and the cover body 12 facilitate the assembly, replacement or maintenance of the transmission structure in the receiving cavity 412.

[0039] like Figure 1 and Figure 2 As shown, the mounting seat 41 further includes bolts 13 , and the cover body 10 and the lid body 12 are detachably connected via the bolts 13 .

[0040] Specifically, the rotating seat 4311 and the two annular protrusions 4312 are detachably connected to facilitate assembly.

[0041] like Figure 1 and Figure 2 As shown, a positioning cylinder 415 is provided on the inner wall of the mounting seat 41, and the positioning cylinder 415 is coaxially arranged with the mounting seat 41. The transmission disc 11 is rotatably sleeved on the positioning cylinder 415, and the positioning cylinder 415 has a notch 4151 for avoiding the rotating member 431. The positioning cylinder 415 can improve the stability of the rotation axis of the transmission disc 11, and the rotating member 431 is inserted into the notch 4151, which can improve the compactness of the structure.

[0042] Specifically, after the adjusting member 43 adjusts the inner diameter of the clamping inner hole 4211 and the outer diameter of the clamping outer cylinder 4212 to the right position, the matching resistance between the transmission disk 11 and the positioning cylinder 415, the meshing cooperation of the multiple transmission teeth 91 and the Archimedean curve groove 112, the matching resistance between the rotating seat 4311 and the avoidance hole 413, and the meshing cooperation of the active bevel gear 8 and the driven bevel gear 111 are utilized to prevent the jaw group 42 from loosening when there is no external force to operate the rotating member 431.

[0043] Alternatively, a locking member is provided between the rotating seat 4311 and the mounting seat 41, for example, the locking member includes two relatively movable clamps, the two clamps are provided on the mounting seat 41, the two clamps are respectively located on both sides of the rotating seat 4311, and the locking member has a locked state and an unlocked state. When the locking member is in the locked state, the two clamps approach each other to clamp the rotating seat 4311, limit the rotation of the rotating seat 4311, and prevent the clamping jaw group 42 from loosening. When the locking member is in the unlocked state, the two clamps move away from each other to loosen the rotating seat 4311, allowing the rotating seat 4311 to rotate.

[0044] like Figure 1As shown, the driving connection part 411 includes an insertion rod 4111, a marble 5 and an elastic member. The insertion rod 4111 is arranged at the first end of the mounting seat 41 and extends in the axial direction of the mounting seat 41. The outer wall of the insertion rod 4111 is provided with a receiving groove. The marble 5 is movably arranged in the receiving groove along the depth direction of the receiving groove. The marble 5 has a clamping position protruding from the outer wall of the insertion rod 4111 and a evasive position retracted into the receiving groove. The elastic member is arranged between the insertion rod 4111 and the marble 5 to apply a reset force to the marble 5 to move to the clamping position. When the wrench glove head needs to be replaced, the operator only needs to lightly press the marble 5 to quickly loosen the wrench glove head 4, which is convenient and efficient.

[0045] like Figures 1 to 4 As shown, another embodiment of the present invention provides an operating wrench, the operating wrench includes an electric drill 1 and a wrench head 4, the driving connection portion 411 of the wrench head 4 is detachably connected to the driving end of the electric drill 1, and the wrench head 4 is the wrench head provided above. Using the operating wrench provided in this embodiment, when the wrench head is used to dock with the inner hole of the joint, multiple movable splints 421 can be extended into the inner hole of the joint, and the adjusting member 43 can be used to drive the clamping jaw group 42 to make the multiple movable splints 421 move away from each other until the multiple movable splints 421 abut against the inner hole wall of the joint. When the wrench head is used to dock with the outer hole of the joint, the multiple movable splints 421 are sleeved on the outer side of the joint, and the adjusting member 43 can be used to drive the clamping jaw group 42 to make the multiple movable splints 421 move closer to each other until the multiple movable splints 421 abut against the outer wall of the joint. Therefore, in power operation and maintenance with changeable operating scenarios, there is no need to frequently replace the wrench head. It is only necessary to operate the adjustment part 43 to adjust the inner hole diameter of the clamping inner hole 4211 and the outer cylinder diameter of the clamping outer cylinder 4212 to achieve adaptive operation of the wrench head for connectors of different calibers and types (such as hexagonal sockets, internal gear types, parent-child bidirectional connectors, etc.), which effectively reduces the time for tool switching and improves work efficiency. It allows operators to quickly switch between different models of electrical switch cabinets, significantly improving the convenience of operation and the operation and maintenance efficiency of operating the wrench.

[0046] like Figure 3 and Figure 4 As shown, the operating wrench also includes a telescopic rod 3, which is detachably arranged at the driving end, and the driving connection part 411 is detachably connected to the end of the telescopic rod 3 away from the electric drill 1. The length of the telescopic rod 3 can be adjusted according to actual needs to meet the adaptation requirements of the operating wrench to different models of switch cabinets, thereby improving the convenience of operation.

[0047] like Figure 3 and Figure 4As shown, the telescopic rod 3 includes a connecting rod 31, a movable sleeve 32 and a locking member 33. The connecting rod 31 is detachably arranged at the driving end. The movable sleeve 32 is movably sleeved on the connecting rod 31 along the extension direction of the connecting rod 31. The driving connection part 411 is detachably connected to the end of the movable sleeve 32 away from the electric drill 1. The locking member 33 is arranged between the connecting rod 31 and the movable sleeve 32. The locking member 33 has a locked state and an unlocked state. When the locking member 33 is in the locked state, the locking member 33 restricts the movement of the movable sleeve 32 relative to the connecting rod 31. When the locking member 33 is in the unlocked state, the locking member 33 allows the movable sleeve 32 to move relative to the connecting rod 31. By switching the locking member 33 between the locked state and the unlocked state, the length of the telescopic rod 3 can be adjusted.

[0048] Specifically, the locking member 33 includes a fastener, which is inserted into the movable sleeve 32 along the radial direction of the connecting rod. The fastener is threadedly matched with the movable sleeve 32 and can abut against the connecting rod to limit the movement of the movable sleeve 32 relative to the connecting rod 31.

[0049] like Figure 3 and Figure 4 As shown, the operating wrench further includes a connecting piece 2, which is detachably arranged on the driving end of the electric drill 1, and one end of the connecting rod 31 facing the electric drill 1 is detachably connected to the connecting piece 2. The electric drill 1 is used as the main power source, and the connecting piece 2 firmly connects the driving end of the electric drill 1 with the telescopic rod 3, and the power of the electric drill 1 can be transmitted to the wrench head 4 through the connecting piece 2 and the telescopic rod 3.

[0050] like Figure 3 and Figure 4 As shown, a socket is provided at the end of the movable sleeve 32 facing away from the electric drill 1, and a locking bayonet 6 connected to the socket is provided on the outer wall of the movable sleeve 32. When the wrench head 4 is installed on the movable sleeve 32, the insertion rod 4111 is inserted into the socket. At this time, the marble 5 is in the engaging position, and the marble 5 extends into the locking bayonet 6 and engages with the locking bayonet 6 to fix the wrench head 4 on the movable sleeve 32. When the wrench head 4 needs to be removed, the marble 5 is pressed inward from the locking bayonet 6 to the avoidance position to separate the marble 5 and the locking bayonet 6.

[0051] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0052] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0053] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0054] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0055] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wrench head, characterized in that: The wrench head comprises: A mounting seat (41), wherein a first end of the mounting seat (41) is provided with a driving connection portion (411); A clamping jaw group (42) is arranged at the second end of the mounting seat (41), the clamping jaw group (42) comprises a plurality of movable clamping plates (421), the movable clamping plates (421) extend along the axial direction of the mounting seat (41), the plurality of movable clamping plates (421) are arranged along the circumferential direction of the mounting seat (41), the movable clamping plates (421) are movable along the radial direction of the mounting seat (41), the inner surfaces of the plurality of movable clamping plates (421) are jointly arranged to form a clamping inner hole (4211), and the outer surfaces of the plurality of movable clamping plates (421) are jointly arranged to form a clamping outer cylinder (4212); An adjusting member (43) is movably arranged on the mounting seat (41); the adjusting member (43) is drivingly connected to the clamping jaw group (42) to drive the plurality of movable clamping plates (421) to move closer to or farther from each other.

2. The wrench head according to claim 1, characterized in that: The mounting seat (41) has a receiving cavity (412), and the adjusting member (43) comprises: A rotating member (431) is rotatably disposed on the mounting seat (41), and a rotation axis of the rotating member (431) extends along a radial direction of the mounting seat (41); A transmission disc (11) is rotatably disposed in the accommodating cavity (412); the rotation axis of the transmission disc (11) extends along the axial direction of the mounting seat (41); the rotating member (431) extends into the accommodating cavity (412) and is drivingly connected to the transmission disc (11); and the transmission disc (11) is drivingly connected to the plurality of movable clamping plates (421).

3. The wrench head according to claim 2, characterized in that: The rotating member (431) comprises: A rotating seat (4311) is rotatably disposed on the mounting seat (41); A driving bevel gear (8) is arranged at one end of the axis of the rotating seat (4311) facing the mounting seat (41), and a driven bevel gear (111) is arranged on the side of the transmission plate (11) facing away from the clamping jaw group (42), and the driving bevel gear (8) is meshed with the driven bevel gear (111); A handle (7) is arranged at one end of the rotating seat (4311) away from the axis of the mounting seat (41).

4. The wrench head according to claim 3, characterized in that: The mounting seat (41) is provided with an avoidance hole (413), both ends of the rotating seat (4311) are provided with annular protrusions (4312), the middle part of the rotating seat (4311) is penetrated by the avoidance hole (413), and the outer diameter of the annular protrusion (4312) is greater than the inner diameter of the avoidance hole (413).

5. The wrench head according to claim 2, characterized in that: The second end of the mounting seat (41) is provided with a plurality of guide grooves (414), the plurality of guide grooves (414) are arranged along the circumferential direction of the mounting seat (41), and the guide grooves (414) extend along the radial direction of the mounting seat (41). The clamping jaw group (42) also includes a plurality of guide seats (9) arranged one-to-one corresponding to the plurality of guide grooves (414), the guide seats (9) are movably arranged in the guide grooves (414) along the extension direction of the guide grooves (414), and the plurality of movable clamping plates (421) are connected to the plurality of guide seats (9) one-to-one correspondingly.

6. The wrench head according to claim 5, characterized in that: An Archimedean curve groove (112) is provided on one side of the transmission disc (11) facing the clamping jaw group (42); a plurality of transmission teeth (91) are provided on one side of the guide seat (9) facing the transmission disc (11); the plurality of transmission teeth (91) are arranged along the radial direction of the mounting seat (41); a second end of the mounting seat (41) is provided with an escape opening connected to the accommodating cavity (412); the plurality of transmission teeth (91) are passed through the escape opening and mesh with the Archimedean curve groove (112).

7. The wrench head according to claim 2, characterized in that: The mounting seat (41) comprises a cover body (10) and a cover body (12) which are detachably connected, the cover body (10) and the cover body (12) are arranged to form the accommodating cavity (412), the driving connection portion (411) is arranged on a side of the cover body (12) away from the cover body (10), the clamping jaw group (42) is arranged on a side of the cover body (10) away from the cover body (12), and the rotating member (431) is rotatably inserted into the cover body (10); and / or, A positioning cylinder (415) is provided on the inner wall of the mounting seat (41), the positioning cylinder (415) is coaxially arranged with the mounting seat (41), the transmission plate (11) is rotatably sleeved on the positioning cylinder (415), and the positioning cylinder (415) has a notch (4151) for avoiding the rotating member (431).

8. The wrench head according to claim 1, characterized in that: The driving connection part (411) comprises: An insertion rod (4111) is arranged at the first end of the mounting seat (41) and extends along the axial direction of the mounting seat (41), and an accommodating groove is arranged on the outer side wall of the insertion rod (4111); A marble (5) is movably arranged in the receiving groove along the depth direction of the receiving groove, and the marble (5) has a clamping position protruding from the outer side wall of the insertion rod (4111) and an avoidance position retracted into the receiving groove; An elastic member is arranged between the insertion rod (4111) and the marble (5) to apply a restoring force to the marble (5) to move it toward the engaging position.

9. An operating wrench, characterized in that: The operating wrench comprises: Electric drill (1); A wrench glove (4), wherein the driving connection portion (411) of the wrench glove (4) is detachably connected to the driving end of the electric drill (1), and the wrench glove (4) is the wrench glove according to any one of claims 1 to 8.

10. The operating wrench according to claim 9, characterized in that The operating wrench further comprises a telescopic rod (3), the telescopic rod (3) being detachably arranged at the driving end, and the driving connection portion (411) being detachably connected to an end of the telescopic rod (3) facing away from the electric drill (1); The telescopic rod (3) comprises a connecting rod (31), a movable sleeve (32) and a locking piece (33); the connecting rod (31) is detachably arranged at the driving end; the movable sleeve (32) is movably sleeved on the connecting rod (31) along the extension direction of the connecting rod (31); the driving connection part (411) is detachably connected to an end of the movable sleeve (32) facing away from the electric drill (1); the locking piece (33) is arranged between the connecting rod (31) and the movable sleeve (32); the locking piece (33) has a locked state and an unlocked state; when the locking piece (33) is in the locked state, the locking piece (33) restricts the movement of the movable sleeve (32) relative to the connecting rod (31); when the locking piece (33) is in the unlocked state, the locking piece (33) allows the movable sleeve (32) to move relative to the connecting rod (31).

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