Torque wrench

Abstract

The invention provides a torque wrench. The torque wrench comprises a wrench operation main body; the wrench operation main body is sleeved with the torsion transmission part, and one end of the torsion transmission part is connected with the wrench operation main body in a matched mode; and the driving part is matched with the other end of the torque transmission part and drives the torque transmission part to rotate so as to drive the wrench operation main body to rotate. The torque transmission part is driven by the driving part to rotate, so that the functions of unidirectional quantitative torque rotation and reverse locking rotation of the wrench operation main body are realized, and the purpose of quickly mounting and dismounting the ultrasonic scalpel head assembly is achieved.

Description

Technical Field

[0001] The present application relates to a surgical instrument installation tool, and more particularly to a torque wrench for assembling an ultrasonic scalpel and a transducer. Background Art

[0002] Some surgical tools require the assembly of an ultrasonic scalpel and a transducer, and currently, a torque wrench is usually used to achieve the threaded connection between the ultrasonic scalpel and the transducer. The existing solution is basically to connect the torque wrench to the ultrasonic scalpel, and the rotation drives the ultrasonic scalpel to rotate to achieve the threaded connection with the transducer.

[0003] Currently, torque wrenches are mostly manually rotated to generate torque, which is inefficient and causes the assembly process to be time-consuming and labor-intensive, and the installation is slow, resulting in inefficient completion of the surgery.

[0004] In view of this, there is an urgent need to provide a torque wrench to efficiently complete the assembly of the ultrasonic knife and the transducer.

[0005] The contents of the background technology section are merely disclosed the technologies known to the inventors and are not considered to represent the prior art in the field. Summary of the invention

[0006] The present application aims to provide a torque wrench to solve at least one problem existing in the prior art.

[0007] According to a first aspect of the present application, a torque wrench is provided, characterized in that the torque wrench comprises: Wrench operating body; The torque transmission part is sleeved on the outside of the wrench operating body, and one end of the torque transmission part is connected with the wrench operating body; A driving part, cooperating with the other end of the torque transmission part; The driving part drives the torque transmission part to rotate to generate a rotational torque, and the torque transmission part transmits the rotational torque to the wrench operating body to realize the rotation of the wrench operating body.

[0008] In some embodiments, the torque transmission part comprises: A wrench seat, which is cooperatively connected with the wrench operating body; The first transmission mechanism is arranged at one end of the wrench seat.

[0009] In some embodiments, one end of the wrench operating body is an execution part, and at least one transmission gear table is provided at a portion of the wrench operating body close to the execution part; The wrench seat is provided with at least one torque constant structure matched with the transmission gear table.

[0010] In some embodiments, the torque constant structures are arranged in several groups, each group of torque constant structures includes two symmetrically arranged torque constant structures, and the number of the transmission gear platforms corresponds one to one to the number of the torque constant structures.

[0011] In some embodiments, the torque constant structure is an elastic limiting structure, which includes a groove providing an avoidance space, an elastic slot platform protruding from the inner side of the wrench seat located at the edge of the groove, and an elastic slot platform inclined surface formed on the side of the elastic slot platform facing the center of the wrench seat, and the transmission gear platform includes a beveled edge arranged on its outer side, and the beveled edge cooperates with the beveled surface of the elastic slot platform.

[0012] In some embodiments, a positioning baffle structure is provided at a portion of the wrench operating body close to the transmission execution part, and the positioning baffle structure is assembled and matched with the wrench seat.

[0013] In some embodiments, the drive gear table is rigid.

[0014] In some embodiments, the driving unit includes a servo motor, an output shaft of which is provided with a second transmission mechanism, and the second transmission mechanism is transmission-connected with the first transmission mechanism to generate rotational torque.

[0015] In some embodiments, the first transmission mechanism is a first gear, the second transmission mechanism is a second gear, and the first gear cooperates with the second gear.

[0016] In some embodiments, the driving unit also includes a servo motor fixing structure, which includes a shell fixing part and a baffle mounted on the outer periphery of the wrench seat, one end of the shell fixing part is matched with the baffle, and the other end is mounted on the end of the wrench operating body away from the execution part, and the servo motor is fixed to the shell fixing part.

[0017] In some embodiments, a through hole is provided at the end of the shell fixing member away from the wrench seat, and a fixed slot is provided at the end of the wrench operating body close to the through hole. A sliding slope is provided at the end of the fixed slot, and the fixed slot is provided with a groove structure arranged along the axis. The maximum outer diameter of the fixed slot is larger than the inner diameter of the through hole. When the wrench operating body passes through the through hole of the shell fixing member, the sliding slope passes through the through hole, causing the groove structure to tighten both sides of the fixed slot inward and deform. After passing through, the state before deformation is restored based on the elastic force, so that the fixed slot is buckled with the end of the through hole.

[0018] In some embodiments, the baffle is provided with a baffle fixing hole, and the housing fixing piece is provided with a baffle fixing column adapted to the baffle fixing hole.

[0019] In some embodiments, the housing fixing member is provided with a motor fixing side platform for fixing the servo motor.

[0020] In some embodiments, the housing fixing member is provided with a battery pack fixing column, and the battery pack fixing column cooperates with the battery pack fixing hole to fix the battery pack.

[0021] In some embodiments, the housing fixing member is provided with a forward button and a reverse button.

[0022] Based on the above embodiments of the present application, the beneficial effects of the present application include one or more combinations of the following effects: The torque wrench provided in the embodiment of the present application drives the torque transmission part to rotate through the driving part, thereby realizing the rotation of the wrench operating body, thereby driving the ultrasonic knife to rotate, thereby achieving the purpose of quickly installing and disassembling the ultrasonic knife head assembly.

[0023] Furthermore, the driving part can realize the quantitative torque rotation in one direction through the forward and reverse rotation, and the locking rotation function in the reverse direction, so as to realize the purpose of fast installation and removal of the ultrasonic blade assembly. Specifically, the servo motor drives the right-angle gear to rotate, and the right-angle gear teeth and the meshing teeth of the first transmission gear can be matched to drive the torque transmission part to rotate. The wrench seat of the torque transmission part is provided with a raised elastic slot table, and the elastic slot table and the transmission gear table are used in cooperation with each other to realize the directional limited torque rapid rotation, thereby driving the torque wrench core wrench operating body to move, so as to realize the purpose of fast installation and removal of the ultrasonic blade assembly, which has obvious advantages of high efficiency and convenience compared with traditional manual rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following is a detailed description of the implementation methods of the present application in conjunction with the accompanying drawings. Here, the drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the accompanying drawings: Figure 1 A schematic structural diagram of a torque wrench according to an exemplary embodiment of the present application is shown; Figure 2 Show according to Figure 1 A cross-sectional view of the torque wrench of the illustrated embodiment; Figure 3 A schematic diagram showing the structure of a wrench operating body according to an embodiment of the present application is shown; Figure 4 A front view of a wrench operating body according to an embodiment of the present application is shown; Figure 5 Show Figure 4 Cross-section along FF direction; Figure 6 A front view of a torque transmission portion according to an embodiment of the present application is shown; Figure 7A cross-sectional view showing an elastic force limiting structure of a torque transmission part according to an embodiment of the present application; Figure 8-9 A schematic structural diagram of a torque transmission part according to an embodiment of the present application is shown; Fig.10 Shows an assembly front view of a wrench operation and torque transmission portion according to an embodiment of the present application; Fig.11 An assembly cross-sectional view of a transmission gear table and an elastic force limiting structure according to an embodiment of the present application is shown; Fig.12 A schematic diagram showing the structure of a housing fixing member according to an embodiment of the present application is shown; Figure 13-14 A schematic diagram showing the structure of a driving unit according to an embodiment of the present application is shown; Fig.15 A left side view of a housing fixing member according to an embodiment of the present application is shown; Fig.16 A front view of a housing fixing according to an embodiment of the present application is shown; Figure 17-18 A schematic structural diagram showing another perspective of a housing fixing member according to an embodiment of the present application; Fig.19 A schematic structural diagram of a baffle according to an embodiment of the present application is shown; Fig. 20 A cross-sectional view showing the connection between a torque wrench and an ultrasonic knife sleeve assembly, and the threaded assembly of an ultrasonic knife and a transducer according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more similar features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a mutual communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the relative height of the first feature in a certain dimension is higher than that of the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the relative position of the first feature in a certain dimension is smaller than that of the second feature.

[0029] Different embodiments or examples are provided below to realize different structures of the present application. In order to simplify the present application, the parts and settings of specific examples are described below. Of course, they are only used as examples, and the purpose is not to limit the present application. The present application can repeat the figure numerals in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings described in itself. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can use the application of other processes and / or the alternative use of other materials according to the enlightenment of the present application.

[0030] Some preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be noted that the following description is for illustrative purposes and is not intended to limit the scope of protection of the present application.

[0031] Figure 1-2 is a schematic diagram of a torque wrench according to some embodiments of the present application. Figure 1-2 The torque wrench 100 includes a wrench operating body 10, a torque transmission part 20, and a driving part 30. The torque transmission part 20 is sleeved on the outside of the wrench operating body 10, and one end of the torque transmission part 20 is matched with the other end of the torque transmission part 20; the driving part 30 drives the torque transmission part 20 to rotate to generate a rotational torque, and the torque transmission part 20 transmits the rotational torque to the wrench operating body 10 to realize the rotation of the wrench operating body.

[0032] For some specific examples, see Figure 3-5 One end (e.g., the front end) of the wrench operating body 10 is a transmission execution part 11, which cooperates with the ultrasonic knife sleeve assembly to transmit torque; a positioning baffle structure 12 is provided near the transmission execution part 11, and the positioning baffle structure 12 is assembled with the torque transmission part 20 to play a limiting role; at least one transmission gear 16 is provided at one end of the wrench operating body near the transmission execution part 11, specifically as Figure 5 As shown, the transmission gear platform 16 includes a bevel 17 arranged on its outer side surface, and another longer side surface of the transmission gear platform 16 is a transmission tooth locking surface; the bevel 17 and the transmission tooth locking surface are adapted to the torque transmission part 20 to achieve constant torque, as described in detail below.

[0033] In some specific examples, at least one transmission gear 16 is circumferentially arranged on the outer cylindrical surface near the positioning baffle structure 12, such as but not limited to 1, 2, 3, 4, 5, 6, etc. Taking 4 transmission gears 16 as an example, the 4 transmission gears 16 can be randomly arranged or evenly spaced. In the case of evenly spaced arrangement, the transmission gears 16 are distributed on the outer cylindrical surface at 90° to each other.

[0034] In some embodiments, the drive gear table 16 is rigid.

[0035] In some specific embodiments, a fixed slot 14 is provided at the other end of the wrench operating body, and a main body 13 is between the fixed slot 14 and the transmission gear platform 16. The outer diameter of the fixed slot 14 is larger than the outer diameter of the main body 13. A sliding slope 18 is provided at the end of the fixed slot 14. Furthermore, the end face of the fixed slot 14 is a 90° vertical surface.

[0036] Furthermore, a groove structure 15 arranged along the axis is provided at the end of the wrench operating body close to the fixed slot 14 , and the fixed slot 14 can be elastically deformed by the avoidance space provided by the groove structure 15 .

[0037] In some embodiments, see Figure 6-9 , the torque transmission part 20 comprises: A wrench seat, which is connected with the wrench operating body 10; The first transmission mechanism is arranged at one end of the wrench seat.

[0038] In some embodiments, see Figure 5-8 The wrench seat is an annular structure, and has an inner hole 27 through which the wrench operating body 10 is inserted. One end of the wrench seat is assembled with the positioning baffle structure 12 to play a limiting role. Specifically, the torque transmission part 20 passes through the main body 13 of the wrench operating body 10 through the inner hole 27 until one end of the torque transmission part 20 contacts the positioning baffle structure 12.

[0039] Furthermore, the wrench seat is provided with at least one torque constant structure cooperating with the transmission gear platform 16 of the wrench operating body 10 .

[0040] In some specific embodiments, the torque constant structures are arranged in several groups, each group of torque constant structures includes two symmetrically arranged torque constant structures, and the number of the transmission gear platforms corresponds one to one to the number of the torque constant structures.

[0041] Specifically, one or more torque constant structures can be provided, such as but not limited to 2, 3, 4, 5, 6, etc. The specific number can be determined according to the actual need of the torsion force. The more the number is provided, the greater the limit torque generated. The symmetrical setting of an even number is more stable. The torque transmission part 20 is provided corresponding to the transmission gear 16. When 4 torque constant structures corresponding to the 4 transmission gears 16 provided at equal intervals are provided, the 4 torque constant structures are distributed circumferentially at 90° to each other to achieve a stable effect.

[0042] In some specific embodiments, the torque constant structure is an elastic force limiting structure 21, which includes a groove providing an escape space, an elastic force slot platform 25 convexly arranged on the inner side of the wrench seat at the edge of the groove, and an elastic force slot platform inclined surface 26 formed on the side of the elastic force slot platform 25 facing the center of the wrench seat. As can be seen from the above content, the outer circumferential surface of the wrench operating body 10 is also provided with a transmission gear platform 16 corresponding to the number of the elastic force limiting structure 21, and the structure of the transmission gear platform 16 is similar to that of the elastic force slot platform 25. The outer surface of the transmission gear platform 16 is also provided with a bevel 17. The elastic force slot platform 25 and the transmission gear platform 16 are used in conjunction with each other. When the torque transmission part 20 rotates clockwise, the two are in contact with each other with their inclined surfaces.

[0043] Further, see Figure 10-11 The bevel 17 of the transmission gear platform 16 cooperates with the bevel 26 of the elastic slot platform.

[0044] In some specific embodiments, see Figure 6-9 The groove may be an annular groove 22. The annular groove may make it easier for the elastic clamping groove platform 25 to produce elastic deformation based on the groove. In some other specific embodiments, the groove may also be a groove arranged along the axial direction of the wrench seat to simplify the groove structure, but is not limited thereto.

[0045] Furthermore, the elastic slot table 25 also includes an elastic slot table locking surface. After the transmission gear table 16 rotates over the inclined surface 26, the transmission tooth locking surface abuts against the elastic slot table locking surface to achieve position limiting.

[0046] When the bevel 17 and the bevel 26 of the elastic slot platform 25 rotate relative to each other, due to the different inner and outer diameters, the two need to overcome interference to rotate with each other. At this time, in order to overcome the interference, the elastic slot platform bevel 26 needs to deform the elastic limit structure 21 to obtain continued rotational movement, thereby ensuring the constant torque of the torque wrench. It should be understood by those skilled in the art that the torque of the torque wrench cannot be too large or too small. When the torque is too large, the ultrasonic blade head and the transducer thread are disengaged, making the threaded connection impossible. When the torque is too small, it cannot be tightened, resulting in an inability to achieve smooth installation.

[0047] In the embodiment of the present application, the elastic slot table 25 and the transmission gear table 16 cooperate with each other. When the wrench seat rotates clockwise, the two are in contact with each other as inclined surfaces. During the rotation process, the elastic limiting structure 21 will be deformed, and the two inclined surfaces move against each other to produce a reverse rotation resistance. In the case of continuous force rotation, the elastic limiting structure 21 will deform and the two inclined surfaces will cross each other and make a clicking sound. This process can ensure that the torque wrench provides a constant tightening torque while reminding the user that a tightening has been completed. When the wrench seat of the torque transmission part 20 rotates counterclockwise, the two sides are stuck structures, and the wrench seat can drive the wrench operating body 10 to rotate. When the servo motor 7 drives the right-angle gear to rotate, the wrench operating body 10 can be realized. The quantitative torque rotation of the wrench operating body 10 in one direction and the reverse locking rotation function can be realized.

[0048] In some embodiments of the present application, since the transmission gear platform 16 is not elastic but rigid, the elastic slot platform 25 of the elastic limiting structure 21 is more likely to undergo elastic deformation based on the groove.

[0049] In some specific examples, the first transmission mechanism is a first transmission gear 24, which is used to be in transmission connection with the driving part 30 to generate a rotational torque. A limiting step 23 is provided at one end of the wrench part, and the first transmission gear 24 is formed at one end of the limiting step 23.

[0050] In some specific examples, the other end of the limiting step 23 of the wrench part is assembled and cooperated with the positioning baffle structure 12 to play a limiting role.

[0051] In some embodiments, see Figure 12-14 The driving unit 30 includes a servo motor 7, an output shaft of which is provided with a second transmission mechanism, and the second transmission mechanism is transmission-connected with the first transmission mechanism to generate a rotational torque.

[0052] In some specific embodiments, the second transmission mechanism is a second transmission gear 8, and the second transmission gear 8 cooperates with the first transmission gear 24 to generate a rotational torque. Preferably, the second transmission gear 8 includes but is not limited to a right-angle gear, and the right-angle gear has right-angle gear teeth 81.

[0053] In some specific embodiments, the driving part also includes a servo motor fixing structure, which includes a shell fixing part 4 and a baffle 3 mounted on the outer periphery of the wrench seat. One end of the shell fixing part 4 is matched with the baffle 3, and the other end is mounted on the end of the wrench operating body 10 away from the execution part. The servo motor 7 is fixed to the shell fixing part 4.

[0054] In some specific embodiments, see Fig.15 The housing fixing member 4 is provided with a motor fixing side platform 42 for fixing the servo motor.

[0055] In some specific embodiments, see Fig.15 The housing fixing member 4 is provided with a battery pack fixing column 44, and the battery pack fixing column 44 cooperates with the battery pack fixing hole to fix the battery pack.

[0056] In some specific embodiments, see Figure 1-2 The housing fixing member 4 is provided with a forward button 5 and a reverse button 6.

[0057] For some specific examples, see Figure 15-18 The end of the servo motor 7 is connected to the second transmission gear 8 through a hole key structure. The servo motor 7 is provided with wires to connect the battery pack and the circuit board (not shown in the figure). The circuit board is provided with a fixing hole, and is connected with the circuit board fixing column 45 on the shell fixing member 4. The circuit board is mainly used to charge the battery pack. The forward button 5 and the reverse button 6 are respectively installed on the button fixing hole 48 of the shell fixing member 4, and are provided with wires connected to the circuit board to control the servo motor 7 to achieve forward and reverse rotation. The battery pack is connected and fixed to the battery pack fixing column 44 of the shell fixing member 4 through the battery pack fixing hole. There are 2 battery packs in total, which are respectively arranged on the left and right sides of the motor to provide power support for the motor.

[0058] For some specific examples, see Figure 1 ,4-17, the housing fixing part 4 is the fixing carrier of all parts and is the key component to bear the force. The servo motor 7 is the power driving source, and four motor threaded holes 71 are provided at the bottom. The servo motor 7 is connected and fixed by screws through the motor threaded holes 71 and the motor fixing holes of the housing fixing part. The motor fixing side platform 42 is used to clamp and fix the servo motor 7 to make it more stable.

[0059] In some specific embodiments, see Fig.16 , 19 The baffle plate 3 is provided with a baffle plate fixing hole 31 along the circumferential direction, and a baffle plate inner hole 32 is opened at the center, and the shell fixing member 4 is provided with a baffle plate fixing column 49 adapted to the baffle plate fixing hole 31 .

[0060] For some specific examples, see Figure 1-4, 15-17, the end of the shell fixing part 4 away from the wrench seat is provided with a fixing part with a through hole 43, the end of the fixing part has a fixing surface 47, the end of the wrench operating body 10 close to the through hole 43 is provided with a fixing groove 14, the end of the fixing groove 14 is provided with a sliding slope 18, the fixing groove 14 is provided with a groove structure 15 arranged along the axis, the maximum outer diameter of the fixing groove 14 is larger than the inner diameter of the through hole 43, when the wrench operating body passes through the through hole 43 of the shell fixing part 4, the sliding slope 18 passes through the through hole 43, and the groove structure 15 causes the two sides of the fixing groove 14 to tighten inward and deform. After passing through, the fixing groove 14 restores the state before deformation based on the elastic force, so that the fixing groove 14 is buckled with the end of the through hole 43 to achieve fixation.

[0061] In the embodiments of the present application, referring to 1-2, 6, and 19, the wrench operating body 10 and the torque transmission part 20 are assembled and passed through the baffle 3 as a whole (specifically, through the inner hole 32 of the baffle, and one side of the baffle 3 is in contact with the limiting step 23), and the wrench operating body 10, the torque transmission part 20 and the baffle 3 are inserted into the shell fixing member 4 as a whole, and a fixed card slot 14 is provided at the tail end of the wrench operating body 10, and the fixed card slot 14 is provided with a sliding inclined surface 18. The end of the fixed card slot 14 is provided with a groove structure 15 arranged along the axis. When the wrench operating body 10 passes through the through hole 43 of the shell fixing member 4, since the maximum outer diameter of the fixed card slot 14 is larger than the inner diameter of the through hole 43, when the wrench operating body 10 and the shell fixing member 4 move relative to each other, the through hole 43 cooperates with the sliding inclined surface 18 and causes the two sides of the fixed card slot 14 to tighten inward and deform through the groove structure 15. After the fixed card slot 14 passes through the through hole 43, it returns to the state before deformation due to elasticity, thereby realizing the engagement of the fixed card slot 14 with the fixed surface 47. The baffle fixing hole 31 on the baffle 3 is engaged with the baffle fixing column 49. After being installed in place, the right-angle gear teeth 81 and the meshing teeth of the first transmission gear 24 can be matched. Through the above-mentioned structural composition, the purpose of quickly controlling the torque wrench to assemble and disassemble the ultrasonic knife head by the forward and reverse rotation of the motor can be achieved.

[0062] The manual wrench provided in the embodiment of the present application is connected to the ultrasonic knife sleeve assembly, and the ultrasonic knife is threadedly assembled with the transducer. Specifically, see Fig. 20The wrench operating body 10 is provided with a through hole along the axial direction, and the transmission execution part 11 of the wrench operating body 10 cooperates with the ultrasonic knife sleeve assembly to transmit torque. The ultrasonic knife 11' of the ultrasonic knife sleeve assembly passes through the through hole of the wrench operating body 10, and one end of the transmission execution part 11 close to the ultrasonic knife 11' is threadedly connected with the transducer 12'; the torque wrench provided in the embodiment of the present application adopts a battery, a motor and a right-angle gear structure, and drives the second transmission gear 8 to rotate by the servo motor 7 to drive the gear forward and reverse motion, so as to Taking the second transmission gear as a right-angle gear as an example, the right-angle gear teeth 81 and the meshing teeth of the first transmission gear 24 can be matched to drive the torque transmission part 20 to rotate. The wrench seat of the torque transmission part 20 is provided with a raised elastic card slot platform 25. The elastic card slot platform 25 and the transmission gear platform 16 cooperate with each other to achieve directional limited torque rapid rotation, thereby driving the wrench operating body 10 to move, thereby achieving the purpose of rapid installation and removal of the ultrasonic blade assembly, which has obvious advantages of high efficiency and convenience compared to traditional manual rotation. In addition, this structure uses a battery pack, which can be recharged and used repeatedly, and has the characteristics of being compact and flexible.

[0063] The basic concepts have been described herein. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0064] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or multiple times in different positions in the present application does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0065] In addition, unless explicitly stated in the claims, the order of the processing elements and sequences described in this application, the use of alphanumeric characters, or the use of other names are not intended to limit the order of the processes and methods of this application. Although the above disclosure discusses some invention embodiments that are currently considered useful through various examples, it should be understood that such details are only for illustrative purposes, and the attached claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that are consistent with the essence and scope of the embodiments of this application. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only by software solutions, such as installing the described system on an existing server or mobile device.

[0066] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0067] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used for the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which can be changed according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the method of general digit retention. Although the numerical domains and parameters used to confirm the breadth of the range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0068] Each patent, patent application, patent application disclosure, and other materials, such as articles, books, instructions, publications, documents, etc., cited in this application is hereby incorporated by reference in its entirety. Except for application history documents that are inconsistent with or conflicting with the content of this application, documents that limit the broadest scope of the claims of this application (currently or later attached to this application) are also excluded. It should be noted that if the description, definition, and / or use of terms in the attached materials of this application are inconsistent or conflicting with the content described in this application, the description, definition, and / or use of terms in this application shall prevail.

[0069] Finally, it should be noted that the above is only an example embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A torque wrench, characterized in that: The torque wrench comprises: Wrench operating body; The torque transmission part is sleeved on the outside of the wrench operating body, and one end of the torque transmission part is connected with the wrench operating body; A driving part, cooperating with the other end of the torque transmission part; The driving part drives the torque transmission part to rotate to generate a rotational torque, and the torque transmission part transmits the rotational torque to the wrench operating body to realize the rotation of the wrench operating body.

2. The torque wrench according to claim 1, characterized in that: The torque transmission part comprises: A wrench seat, which is cooperatively connected with the wrench operating body; The first transmission mechanism is arranged at one end of the wrench seat.

3. The torque wrench according to claim 2, characterized in that: One end of the wrench operating body is an execution part (11), and at least one transmission gear stand is provided at a portion of the wrench operating body close to the execution part (11); The wrench seat is provided with at least one torque constant structure cooperating with the transmission gear platform (16).

4. The torque wrench according to claim 3, characterized in that: The torque constant structures are arranged in several groups, each group of torque constant structures includes two symmetrically arranged torque constant structures, and the number of the transmission gear platforms corresponds to the number of the torque constant structures.

5. The torque wrench according to claim 4, characterized in that: The torque constant structure is an elastic limiting structure (21), which comprises a groove providing an escape space, an elastic clamping groove platform (25) convexly arranged on the inner side of the wrench seat at the edge of the groove, and an elastic clamping groove platform inclined surface (25) formed on the side of the elastic clamping groove platform (25) facing the center of the wrench seat, and the transmission gear platform (16) comprises an inclined edge (17) arranged on the outer side thereof, and the inclined edge (17) cooperates with the elastic clamping groove platform inclined surface (26).

6. The torque wrench according to claim 3, characterized in that: A positioning baffle structure (12) is provided at a portion of the spanner operating body close to the transmission execution part (11), and the positioning baffle structure (12) is assembled and matched with the spanner seat.

7. The torque wrench according to any one of claims 3 to 5, characterized in that: The transmission gear table (16) is rigid.

8. The torque wrench according to claim 2, characterized in that: The driving part comprises a servo motor, an output shaft of which is provided with a second transmission mechanism, and the second transmission mechanism is transmission-connected with the first transmission mechanism to generate a rotational torque.

9. The torque wrench according to claim 8, characterized in that: The first transmission mechanism is a first gear, the second transmission mechanism is a second gear, and the first gear matches the second gear.

10. The torque wrench according to claim 9, characterized in that: The driving part also includes a servo motor fixing structure, which includes a shell fixing part and a baffle plate sleeved on the outer periphery of the wrench seat. One end of the shell fixing part is matched with the baffle plate, and the other end is sleeved on the end of the wrench operating body away from the actuator. The servo motor is fixed to the shell fixing part.

11. The torque wrench according to claim 10, characterized in that: The end of the housing fixing member (4) away from the wrench seat is provided with a through hole (43), the end of the wrench operating body close to the through hole (43) is provided with a fixed slot (14), the end of the fixed slot (14) is provided with a sliding inclined surface (18), and the fixed slot (14) is provided with a groove structure (15) arranged along the axis. The maximum outer diameter of the fixed slot (14) is greater than the inner diameter of the through hole (43). When the wrench operating body passes through the through hole (43) of the housing fixing member (4), the sliding inclined surface (18) passes through the through hole (43), causing the groove structure (15) to cause both sides of the fixed slot (14) to tighten inwards and deform. After passing through, the state before deformation is restored based on elastic force, so that the fixed slot (14) and the end of the through hole (43) are buckled.

12. The torque wrench according to claim 10, characterized in that: The baffle plate (3) is provided with a baffle plate fixing hole (31), and the housing fixing piece is provided with a baffle plate fixing column (49) adapted to the baffle plate fixing hole (31).

13. The torque wrench according to claim 10, characterized in that: The housing fixing member is provided with a motor fixing side platform (42) for fixing the servo motor.

14. The torque wrench according to claim 10, characterized in that: The housing fixing piece is provided with a battery pack fixing column (44), and the battery pack fixing column (44) cooperates with the battery pack fixing hole to fix the battery pack.

15. The torque wrench according to claim 10, characterized in that: The housing fixing piece is provided with a forward button and a reverse button.

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