Wrench

Abstract

The wrench comprises a main body part and an abutting and pushing assembly, the abutting and pushing assembly is rotationally connected with the main body part and can be switched between a first state and a second state relative to the main body part, and at least part of the abutting and pushing assembly is used for being inserted into a tooth groove of a gear body and abutting against gear teeth of the gear body. When the main body part rotates, the gear body can be driven to rotate; when the abutting-pushing assembly is in the first state, the main body part rotates and can drive the gear body to rotate in the first direction in a one-way mode, and when the abutting-pushing assembly is in the second state, the main body part rotates and can drive the gear body to rotate in the direction opposite to the first direction in the one-way mode. In the process of rotating the gear body, the hand of a worker does not need to be in direct contact with the gear body, so that the risk that the hand of the worker is injured can be reduced, abrasion of a gear switch to protective gloves worn by the worker is reduced, and the safety of maintenance operation is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of hardware tools, and more specifically, relates to a wrench. Background Art

[0002] In nuclear power plants, RIC (Reactor Internals Monitoring System) micro-motion equipment is mainly used to monitor the tiny movements of reactor internal components.

[0003] The selector is a crucial component in the RIC micro-motion equipment of nuclear power plants. It is primarily responsible for selecting and switching the detector's measurement channels during processes such as core neutron flux rate measurements. The accuracy and reliability of the selector are crucial to the proper operation of the RIC micro-motion equipment. Therefore, during the operation and maintenance of nuclear power plants, the selector requires regular inspection, calibration, and maintenance to ensure that its performance consistently meets requirements.

[0004] The selector relies on its internal gear switch to select and switch the measurement channel. The selector detection, calibration and maintenance operations need to be performed under power-off conditions. Therefore, it is usually necessary to manually rotate the gear body of the gear switch to perform maintenance operations.

[0005] During inspection operations, workers are usually required to rotate the gear body with their bare hands. During the process of rotating the gear body, there is a risk that the gear switch will wear out the protective gloves and pinch the hands, which can easily cause finger injuries and is not conducive to safe production. Utility Model Content

[0006] The purpose of the embodiments of the present application is to provide a wrench to solve the technical problem in the prior art that during selector maintenance operations, workers may injure their fingers by rotating the gear body with their bare hands, which is not conducive to safe production.

[0007] To achieve the above objectives, the technical solution adopted in this application is:

[0008] A wrench is provided, comprising:

[0009] the main body; and

[0010] a push assembly rotatably connected to the main body and capable of switching between a first state and a second state relative to the main body, wherein at least a portion of the push assembly is configured to be inserted into a tooth groove of the gear body and abut against the gear teeth of the gear body, so that the gear body can be driven to rotate when the main body rotates;

[0011] Among them, when the push assembly is in the first state, the main body rotates and can drive the gear body to rotate unidirectionally along the first direction; when the push assembly is in the second state, the main body rotates and can drive the gear body to rotate unidirectionally in the direction opposite to the first direction.

[0012] In some embodiments, the push assembly includes a first claw and a second claw spaced apart on the main body, and when the push assembly is in the first state, at least one of the first claw and the second claw abuts against the first side wall of the tooth groove; when the push assembly is in the second state, at least one of the first claw and the second claw abuts against the second side wall of the tooth groove opposite to the first side wall.

[0013] In some embodiments, the main body is provided with an adjustment component, which is connected to the first claw and the second claw and drives the first claw and the second claw to rotate so that the pushing component switches between the first state and the second state.

[0014] In some embodiments, the adjustment assembly includes a cam rotatably connected to the main body, the cam is located between the first claw and the second claw, the opposite sides of the cam are respectively against the first claw and the second claw, and the cam rotates relative to the main body and drives the first claw and the second claw to rotate.

[0015] In some embodiments, the main body is provided with a first groove, and at least a portion of the push assembly is received in the first groove.

[0016] In some embodiments, the wrench further comprises a positioning assembly provided on the main body, the positioning assembly being provided with a second groove, the second groove being used to accommodate a connecting shaft connected to the gear body;

[0017] When the push assembly is inserted into the tooth groove, the side wall of the second groove abuts against the peripheral side surface of the connecting shaft.

[0018] In some embodiments, the sidewall surface of the second groove is a concave arc surface.

[0019] In some embodiments, the positioning assembly includes a first positioning member and a second positioning member, and the first positioning member and the second positioning member are arranged to form the second groove. At least one of the first positioning member and the second positioning member is movably connected to the main body so that the first positioning member and the second positioning member can move closer to or farther away from each other to adjust the slot size of the second groove.

[0020] In some embodiments, a side surface of the main body is recessed to provide a slide groove, and the first positioning member and / or the second positioning member is provided with a slider, and the slider is slidably connected to the slide groove, and the first positioning member and / or the second positioning member slides with the slide groove through the slider to move closer to or away from each other.

[0021] In some embodiments, the two end portions of the slide groove in the longitudinal direction pass through the surface of the main body, and the main body is detachably connected to two limit members, the two limit members are spaced apart along the longitudinal direction of the slide groove, and the spacing distance between the two limit members is less than or equal to the length of the slide groove, and the first positioning member and the second positioning member are arranged between the two limit members.

[0022] In some embodiments, the positioning assembly further includes a locking member, which is movably disposed on the main body and can switch between a locked position and an unlocked position; wherein, when the locking member is in the locked position, the locking member is connected to the first positioning member and / or the second positioning member so that the position between the first positioning member and the second positioning member is fixed; when the locking member is in the unlocked position, the locking member is disengaged from the corresponding first positioning member and / or the second positioning member so that the first positioning member and the second positioning member can move relative to each other.

[0023] In some embodiments, the locking member is hinged to the first positioning member, and the locking member has a first locking surface arranged at an angle to the moving direction of the second positioning member. When the locking member is in the locked position, the first locking surface abuts against a surface of the second positioning member that is away from the first positioning member along the moving direction. When the locking member is in the unlocked position, the first locking surface is separated from the second positioning member.

[0024] Alternatively, the locking member is hinged to the main body, and the locking member is provided with a locking groove. When the locking member is in the locking position, at least part of the first positioning member and / or at least part of the second positioning member is stuck in the locking groove. When the locking member is in the unlocking position, the locking member is separated from the corresponding first positioning member and / or second positioning member.

[0025] The beneficial effect of the wrench provided by the present application is that: a push component is provided to be inserted into the tooth groove of the gear body and to resist the gear teeth of the gear body, so that the wrench can be inserted into the tooth groove of the gear body, and the wrench can be adapted to the shape of the gear body to achieve the connection between the wrench and the gear body; when the wrench is rotated, the push component of the wrench can be pressed against the gear teeth of the gear body and push the gear body to rotate, thereby achieving the position adjustment of the gear body. In the process of rotating the gear body, the hands of the staff do not need to be in direct contact with the gear body, which can reduce the risk of hand injury to the staff and reduce the wear of the protective gloves worn by the staff by the gear switch, which is conducive to improving the safety of maintenance operations. During use of the wrench, the relative position of the wrench and the gear body can be adjusted so that the push assembly is inserted into different tooth grooves of the gear body to facilitate the rotation of the wrench; the push assembly is hinged to the main body, and its relative position to the main body can be adjusted by rotating the push assembly; when the push assembly is in the first state, the wrench is used to drive the gear body to rotate counterclockwise in one direction. At this time, if the wrench is rotated clockwise to adjust the position of the wrench and the gear body, the push assembly will not push the gear body to rotate it, thereby reducing the probability that the gear body will follow the wrench to rotate during the position adjustment process of the two; correspondingly, when the push assembly is in the second state, the wrench is used to drive the gear body to rotate clockwise in one direction. If the wrench is rotated counterclockwise to adjust the position of the wrench and the gear body, the push assembly will not push the gear body to rotate it, thereby reducing the probability that the gear body will follow the wrench to rotate during the position adjustment process of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 Schematic diagram of a gear switch in related art.

[0028] Figure 2 A schematic diagram of a wrench provided in an embodiment of the present application;

[0029] Figure 3 for Figure 2 Schematic diagram of the wrench and gear switch combination shown;

[0030] Figure 4 for Figure 3 A schematic diagram of a wrench and gear switch combination shown in FIG. 1 (the paddle and cover are not shown);

[0031] Figure 5 for Figure 3 A schematic diagram of another state of the wrench and gear switch combination shown (the cover is not shown);

[0032] Figure 6 for Figure 3 Another perspective diagram of the wrench and gear switch combination shown;

[0033] Figure 7 for Figure 2 Schematic diagram of another state of the wrench shown.

[0034] Among them, the reference numerals in the figures are:

[0035] 100, gear body; 1001, first side wall; 1002, second side wall; 200, connecting shaft;

[0036] 1. Main body; 11. First groove; 12. Slide; 13. First limiter; 14. Second limiter; 2. Push assembly; 21. First claw; 22. Second claw; 3. Cam; 31. Third peripheral side; 4. Paddle; 5. Positioning assembly; 51. First positioning member; 52. Second positioning member; 53. Second groove; 54. Slider; 55. Locking member; 551. First locking surface; 6. Cover. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following Figures 1 to 7 It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0038] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 this application.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, "multiple groups" means two or more groups, "multiple pieces" means two or more pieces, and "several" means one or more, unless otherwise clearly defined.

[0041] In nuclear power plants, RIC (Reactor Internals Monitoring System) micro-motion equipment typically uses high-precision sensor technology, such as displacement sensors and accelerometers, to detect minute movements of reactor components. These sensors transmit the detected signals to the monitoring system, which processes and analyzes the signals to determine the displacement of the components. RIC micro-motion equipment plays a vital role in nuclear power plant safety, enabling timely detection of even the smallest changes in reactor components and providing strong support for safe operation.

[0042] In the RIC micro-motion equipment of nuclear power plants, the selector is an important component. The selector is mainly responsible for selecting and switching the measurement channels of the detector during processes such as the core neutron fluence rate measurement. It can guide the detector to different measurement positions as needed to obtain neutron fluence rate data in different areas of the core. For example, in a system with multiple measurement channels and detectors, the selector can accurately control each detector to enter a specific channel, thereby realizing all-round measurement of the core.

[0043] In the related technology, a gear switch connected to the measurement channel of the detector is provided in the selector, and the gear switch is used to select and switch the measurement channel of the detector; when the system issues an instruction, the selector will select and switch the measurement channel according to the preset program and logic by rotating the gear body of the gear switch, so that the detector enters the specified measurement channel.

[0044] The accuracy and reliability of the selector are crucial to the proper operation of RIC micro-motion equipment. A faulty or inaccurate selector can prevent the detector from reaching the correct measurement position, resulting in erroneous neutron flux rate data. This can affect the assessment of core status and the safe operation of the nuclear power plant. Therefore, during nuclear power plant operation and maintenance, the selector must be regularly inspected, calibrated, and maintained to ensure that its performance consistently meets requirements.

[0045] Since the selector relies on its internal gear switch to select and switch the measurement channel, the accuracy of the gear switch directly affects the accuracy and reliability of the selector. In addition, the inspection, calibration and maintenance of the selector need to be performed under power-off conditions. Therefore, it is usually necessary to manually rotate the gear body of the gear switch to perform maintenance work.

[0046] Reference Figure 1 The gear switch includes several gear bodies 100 and connecting shafts 200 connected to the gear bodies 100, wherein the several gear bodies 100 are meshed in sequence, and the connecting shaft 200 is connected to the motor in the selector. When the motor is started, the connecting shaft 200 can be driven to rotate, thereby driving the gear body 100 to rotate. During the rotation of the gear body 100, the opening position of each channel can be adjusted so that the openings of the two target channels are connected, thereby realizing the selection and switching of the measurement channel.

[0047] During power-off inspection of selectors, wrenches are usually used to clamp parts and drive them to rotate. However, traditional wrenches are not suitable for the shape of gears, that is, traditional wrenches cannot drive gears to rotate well. Therefore, during inspection operations, workers are usually required to rotate the gear body with their bare hands. In the process of rotating the gear body, there is a risk that the gear switch will wear out protective gloves and pinch hands, which can easily cause finger injuries and is not conducive to safe production.

[0048] Based on this, an embodiment of the present application provides a wrench to solve the above problems.

[0049] Please also refer to Figures 2 to 5 , the wrench provided in the embodiment of the present application is now described.

[0050] A wrench provided in an embodiment of the present application includes a main body 1 and a push assembly 2. The push assembly 2 is hinged to the main body 1 to move and switch between a first state and a second state relative to the main body 1. At least a portion of the push assembly 2 is inserted into the tooth groove of the gear body 100 and abuts against the gear teeth of the gear body 100, so that the gear body 100 can be driven to rotate when the wrench is rotated. When the push assembly 2 is in the first state, the push assembly 2 is used to drive the gear body 100 to rotate unidirectionally in a first direction. When the push assembly 2 is in the second state, the push assembly 2 is used to drive the gear body 100 to rotate unidirectionally in a direction opposite to the first direction.

[0051] It should be noted that the first direction can be Figure 3 and Figure 4 The direction indicated by the arrow L1 in FIG. 1 may be a second direction opposite to the first direction, and the second direction may be Figure 5 The direction indicated by the arrow in L2.

[0052] It should be noted that the main body 1 is in the shape of an elongated strip, and the length of the main body 1 can be extended along the Y-axis direction shown in the figure so that it can be held by a staff member; the gear body 100 is provided with a plurality of gear teeth, and tooth grooves are formed between two adjacent gear teeth.

[0053] A push assembly 2 is provided to be inserted into the tooth groove of the gear body 100 and to abut against the gear teeth of the gear body 100. In this way, the wrench can be inserted into the tooth groove of the gear body 100, and the wrench can be adapted to the outer shape of the gear body 100 to achieve the connection between the wrench and the gear body 100; when the wrench is rotated, the push assembly 2 of the wrench can abut against the gear teeth of the gear body 100 and push the gear body 100 to rotate, thereby achieving the position adjustment of the gear body 100. In the process of rotating the gear body 100, the hands of the staff do not need to be in direct contact with the gear body 100, which can reduce the risk of hand injury to the staff and reduce the wear of the protective gloves worn by the staff by the gear switch, which is conducive to improving the safety of maintenance operations.

[0054] It can be understood that during the use of the wrench, the relative position of the wrench and the gear body 100 can be adjusted so that the push component 2 is inserted into different tooth grooves of the gear body 100 to facilitate the rotation of the wrench; the push component 2 is hinged to the main body 1, and its relative position to the main body 1 can be adjusted by rotating the push component 2; when the push component 2 is in the first state, the wrench is used to drive the gear body 100 to rotate counterclockwise in one direction. At this time, if the wrench is rotated clockwise to adjust the position of the wrench and the gear body 100, the push component 2 will not push the gear body to rotate, thereby reducing the probability that the gear body 100 will follow the wrench to rotate during the position adjustment process of the two; correspondingly, when the push component 2 is in the second state, the wrench is used to drive the gear body 100 to rotate clockwise in one direction. If the wrench is rotated counterclockwise to adjust the position of the wrench and the gear body 100, the push component 2 will not push the gear body 100 to rotate, thereby reducing the probability that the gear body 100 will follow the wrench to rotate during the position adjustment process of the two.

[0055] The push assembly 2 includes a first claw 21 and a second claw 22 spaced apart on the main body 1. When the push assembly 2 is in the first state, at least one of the first claw 21 and the second claw 22 abuts against the first side wall 1001 of the tooth groove; when the push assembly 2 is in the second state, at least one of the first claw 21 and the second claw 22 abuts against the second side wall 1002 of the tooth groove opposite to the first side wall 1001.

[0056] The first claw 21 and the second claw 22 are provided, and the combination of the push assembly 2 and the gear body 100 is similar to a ratchet mechanism, thereby driving the gear body 100 to rotate unidirectionally in the first direction or the second direction. Figures 2 to 4, the push assembly 2 is in the first state, at this time, the wrench can be used to drive the gear body 100 to rotate unidirectionally in the counterclockwise direction shown in the figure; Figure 5 The push assembly 2 is in the second state, at which point the wrench can be used to drive the gear body 100 to rotate unidirectionally in the clockwise direction shown in the figure. The first and second jaws 21, 22 are spaced apart, and when the push assembly 2 is adjusted from the first state to the second state, the first and second jaws 21, 22 rotate only slightly. This allows the main body 1 to be lifted from the gear body 100 or lifted only slightly from the gear body 100 when the gear body 100 needs to be reversely driven to rotate and adjust the position of the push assembly 2, making it easier to use the wrench.

[0057] In some embodiments, when the push assembly 2 is in the first state, the first pawl 21 abuts against the first side wall 1001 of the tooth groove, and the second pawl 22 is separated from the second side wall 1002 of the tooth groove opposite the first side wall 1001; when the push assembly 2 is in the second state, the second pawl 22 abuts against the second side wall 1002, and the first pawl 21 is separated from the first side wall 1001. The first pawl 21 and the second pawl 22 are respectively used to drive the gear body 100 to rotate unidirectionally in the first direction or the second direction. In other embodiments, when the push assembly 2 is in the first state, the first pawl 21 and the second pawl 22 can simultaneously abut against the first side wall 1001 of the tooth groove; when the push assembly 2 is in the second state, the first pawl 21 and the second pawl 22 can simultaneously abut against the second side wall 1002 of the tooth groove.

[0058] In some embodiments, the first claw 21 and the second claw 22 may be spaced apart along the width direction of the main body 1 , and the width direction of the main body 1 may be the X-axis direction shown in the figure.

[0059] Reference Figures 3 to 5 The main body 1 is provided with an adjustment assembly, which is connected to the first claw 21 and the second claw 22. The adjustment assembly drives the first claw 21 and the second claw 22 to rotate, thereby switching the push assembly 2 between the first state and the second state. The adjustment assembly can be used to adjust the position of the first claw 21 and the second claw 22, conveniently changing the driving direction of the wrench on the gear body 100 and reducing the difficulty of using the wrench.

[0060] The adjustment assembly includes a cam 3 rotatably connected to the main body 1. The cam 3 is located between the first and second jaws 21, 22. Opposing sides of the cam 3 abut against the first and second jaws 21, 22, respectively. The cam 3 rotates relative to the main body 1 and drives the first and second jaws 21, 22 to rotate. Positioning the cam 3 between the first and second jaws 21, 22 allows both jaws 21, 22 to rotate, simplifying the wrench's structure.

[0061] It can be understood that the cam 3 has a driving portion 31 for driving the first claw 21 and the second claw 22 to rotate, and the cam 3 can rotate until the driving portion 31 abuts against the first claw 21 / the second claw 22 and drives them to rotate.

[0062] In some embodiments, the adjustment assembly further includes an elastic member (not shown in the figure). When the driving portion 31 of the cam 3 is separated from the first claw 21 / the second claw 22, the elastic force of the elastic member can drive the first claw 21 / the second claw 22 to move toward the side where the cam 3 is located, so that the first claw 21 and the second claw 22 can always remain tightly against the cam 3, thereby allowing the cam 3 to change the positions of the first claw 21 and the second claw 22 during rotation.

[0063] In some embodiments, the adjustment assembly includes two elastic members, which are respectively a first elastic member and a second elastic member. The first elastic member is respectively connected to the first claw 21 and the main body 1, and the first elastic member is used to drive the first claw 21 to rotate toward the side of the cam 3 so that the first claw 21 remains in contact with the cam 3. The second elastic member is respectively connected to the second claw 22 and the main body 1, and the second elastic member is used to drive the second claw 22 to rotate toward the side of the cam 3 so that the second claw 22 remains in contact with the cam 3. During the rotation of the cam 3, after the driving part 31 of the cam 3 is separated from the first claw 21, under the elastic force of the first elastic member, the first claw 21 can rotate toward the side of the cam 3, so that the first claw 21 can automatically rotate from the second state to the first state, and remain in the first state, realizing automatic switching of the position of the first claw 21, and no longer need to manually shift the first claw 21. Correspondingly, after the driving part 31 of the cam 3 is separated from the second claw 22, under the elastic force of the second elastic member, the second claw 22 can rotate toward the side of the cam 3, so that the second claw 22 can automatically rotate from the first state to the second state, and remain in the second state, realizing automatic switching of the position of the second claw 22, and no longer need to manually shift the second claw 22, thereby reducing the difficulty of using the wrench.

[0064] In some embodiments, the first elastic member can be a torsion spring, a spring or other elastic structure; the second elastic member can be a torsion spring, a spring or other elastic structure; it should be noted that the types of the first elastic member and the second elastic member can be the same or different.

[0065] In other embodiments, the adjustment assembly may include only one elastic member, which is connected to the first claw 21 and the second claw 22, respectively. When the elastic member is in a contracted state, the first claw 21 and the second claw 22 maintain contact with the cam 3. In this manner, the elastic member need not be connected to the main body 1, thereby reducing its installation difficulty. The elastic member in this embodiment may be a torsion spring, a spring, or other elastic structure.

[0066] In some embodiments, the adjustment component may also include a plurality of magnets, and utilize the magnetic attraction between the magnets to drive the first claw 21 and the second claw 22 to rotate and reset. For example, two magnets may be provided on the first claw 21 and the second claw 22 respectively, and the magnetic attraction between the two magnets may replace the elastic force of the third elastic member in the above embodiment.

[0067] In some embodiments, the adjustment assembly further includes a paddle 4 connected to the cam 3, and the paddle 4 is used to drive the cam 3 to rotate. Using the paddle 4 to drive the cam 3 to rotate can reduce the difficulty of rotating the cam 3, which can further reduce the difficulty of adjusting the positions of the first claw 21 and the second claw 22.

[0068] In some embodiments, the main body 1 is provided with a first groove 11 , and at least a portion of the push assembly 2 is disposed in the first groove 11 .

[0069] It should be noted that at least a portion of the push assembly 2 is arranged in the first groove 11. A portion of the push assembly 2 may be located in the first groove 11, and another portion of the push assembly 2 may be located outside the first groove 11. Alternatively, the entire push assembly 2 may be located in the first groove 11. In this case, the size of the first groove 11 may be larger than the size of the gear body 100, so that the gear body 100 can be inserted into the first groove 11 and connected to the push assembly 2.

[0070] The first groove 11 can provide an installation space for the push assembly 2, so that the thickness of the wrench can be appropriately reduced, and the space occupied by the wrench in the selector during use can be reduced, so that the wrench can be easily rotated and the difficulty of operation can be reduced.

[0071] Reference Figure 4 In some embodiments, the first groove 11 connects two surfaces of the main body 1 that are connected at an angle, which can facilitate the assembly of the push component 2 and the main body 1.

[0072] Reference Figure 3 and Figure 4 In some embodiments, the wrench further includes a cover plate 6, which is connected to the main body 1 and is used to cover a portion of the first groove 11. In this way, the cover plate 6 and the main body 1 can enclose a groove structure with an opening facing the gear body 100; the provision of the cover plate 6 can reduce the exposed portion of the first claw 21 and the second claw 22, thereby reducing the possibility of the first claw 21 and the second claw 22 being displaced due to collision.

[0073] In this embodiment, the first claw 21, the second claw 22 and the cam 3 are arranged in the first groove 11, and the paddle 4 is located on the side of the cover plate 6 away from the first groove 11. The cover plate 6 can be provided with a connecting hole passing through the cover plate 6, and a connecting piece passing through the connecting hole can be used to connect the paddle 4 and the cam 3, so that the position of the cam 3 can be adjusted by paddle 4, and then the position of the first claw 21 and the second claw 22 can be adjusted.

[0074] Reference Figure 2 、 Figure 6 and Figure 7 In some embodiments, the wrench further includes a positioning assembly 5, which is provided with a second groove 53, and the second groove 53 is used to accommodate a connecting shaft 200 connected to the gear body 100, wherein when the push assembly 2 is inserted into the tooth groove, the side wall of the second groove 53 is used to abut against the peripheral side surface of the connecting shaft 200.

[0075] It should be noted that the gear switch in the selector includes a gear body 100 and a connecting shaft 200 connected to the gear body 100, wherein the gear body 100 is fixedly connected to the connecting shaft 200. When the selector is powered on, the motor in the selector can drive the gear body 100 to rotate through the connecting shaft 200. When the power is cut off for maintenance, the connecting shaft 200 will also rotate during the process of rotating the gear body 100.

[0076] A positioning assembly 5 is provided on the wrench, and the second groove 53 of the positioning assembly 5 is used to accommodate the connecting shaft 200 connected to the gear body 100. The connecting shaft 200 can support the wrench. In the process of rotating the wrench, the side wall of the second groove 53 can be kept in contact with the peripheral side surface of the connecting shaft 200 to keep the push assembly 2 always inserted into the tooth groove of the gear body 100. In this way, the risk of the push assembly 2 being separated from the gear body 100 during the rotation of the wrench can be reduced, so that the wrench can stably drive the gear body 100 to rotate; in addition, the side wall of the second groove 53 is used to abut against the peripheral side surface of the connecting shaft 200, and can also limit the depth of the first claw and the second claw of the push assembly 2 inserted into the tooth groove, thereby reducing the wear caused by the excessive pushing force of the first claw 21 and the second claw 22 on the gear teeth.

[0077] The positioning assembly 5 includes a first positioning member 51 and a second positioning member 52 connected to the main body 1. The first positioning member 51 and the second positioning member 52 are arranged to form a second slot 53. At least one of the first positioning member 51 and the second positioning member 52 is movably connected to the main body 1. The first positioning member 51 and the second positioning member 52 can move closer to or further away from each other to adjust the size of the slot 53. In some embodiments, the first positioning member 51 may be fixed to the main body 1 while the second positioning member 52 is movably connected to the main body 1. In other embodiments, the first positioning member 51 may be movably connected to the main body 1 while the second positioning member 52 is fixed to the main body 1. In still other embodiments, both the first positioning member 51 and the second positioning member 52 may be movably connected to the main body 1.

[0078] It should be noted that at least one of the first positioning member 51 and the second positioning member 52 is movably connected to the main body 1. At least one of the first positioning member 51 and the second positioning member 52 can be slidingly connected to the main body 1, or at least one of the first positioning member 51 and the second positioning member 52 can be hinged to the main body 1.

[0079] The first positioning member 51 and the second positioning member 52 are arranged to be able to approach each other or move away from each other to adjust the slot size of the second groove 53. In this way, the first positioning member 51 and the second positioning member 52 can be brought closer to each other to reduce the slot size of the second groove 53. For example, its size can be made smaller than the diameter of the connecting shaft 200. In this way, during the rotation of the wrench, the connecting shaft 200 can always be located in the second slot 53. In this way, the positioning assembly 5 can also play a limiting role, that is, the positioning assembly 5 can limit the distance between the wrench and the gear body 100, reducing the risk of the push assembly 2 disengaging from the gear body 100 during the rotation of the wrench, so that the wrench can stably drive the gear body 100 to rotate; the first positioning member 51 and the second positioning member 52 are movably connected to the main body 1, and the first positioning member 51 and the second positioning member 52 can be brought closer to each other to enclose and form the second slot 53. The distance between the first positioning member 51 and the second positioning member 52 can be adjusted so that the first positioning member 51 and the second positioning member 52 can be assembled with the connecting shaft 200, so that the positioning assembly 5 can achieve its limiting role.

[0080] Of course, the side wall of the second groove 53 can form a gap with the peripheral side surface of the connecting shaft 200, so that there can be a certain range of movement between the wrench and the gear body 100, thereby achieving position adjustment between the two.

[0081] In some embodiments, a groove 12 is provided in a recessed manner on one side of the main body 1, and the first positioning member 51 and / or the second positioning member 52 has a slider 54, which is slidably connected to the groove 12. The first positioning member 51 and / or the second positioning member 52 slide together with the groove through the slider to move closer to or away from each other. The groove 12 is provided in the main body 1, and the slider 54 is slidably connected to the groove 12. The relative distance between the first positioning member 51 and the second positioning member 52 can be adjusted by moving the slider 54, so that the first positioning member 51 and the second positioning member 52 can be enclosed around the outer periphery of the connecting shaft 200, or the first positioning member 51 and the second positioning member 52 can be separated from the connecting shaft 200. In some embodiments, the length of the groove 12 can extend along the width direction of the main body 1, and the width direction of the main body 1 can be the X-axis direction shown in the figure.

[0082] In some embodiments, the two end portions of the slide groove 12 in the longitudinal direction pass through the surface of the main body 1, and the main body 1 is detachably connected to two limit members, which are arranged at intervals along the longitudinal direction of the slide groove 12. The spacing distance between the two limit members is less than or equal to the length of the slide groove 12, and the first positioning member 51 and the second positioning member 52 are arranged between the two limit members.

[0083] The two ends of the slide groove 12 pass through the surface of the main body 1, and the slider 54 can be inserted into the slide groove 12 from the end of the slide groove 12, which can reduce the difficulty of assembling the slider 54 and the slide groove 12; during assembly, the limiter can be separated from the main body 1 first, and the slider 54 can be inserted into the slide groove 12 from the end of the slide groove 12, and then the limiter can be connected to the main body 1 to limit the moving range of the slider 54 and reduce the risk of the slider 54 detaching from the slide groove 12.

[0084] Exemplarily, the limiting member may be a screw, and the limiting member may be threadedly connected to the main body 1 .

[0085] In some embodiments, the two limiting members are respectively a first limiting member 13 and a second limiting member 14. In this embodiment, the first limiting member 13 and the second limiting member 14 are respectively abutted against the slider 54 via the first positioning member 51 and the second positioning member 52. In other embodiments, the slide groove 12 may be provided with only one end portion penetrating the surface of the main body 1. In this case, only one limiting member may be provided.

[0086] Continue to refer to Figure 6 and Figure 7The positioning assembly 5 also includes a locking member 55, which is movably provided on the main body 1 and can switch between a locked position and an unlocked position. When the locking member 55 is in the locked position, the locking member 55 is connected to the first positioning member 51 and / or the second positioning member 52 to fix the position between the first positioning member 51 and the second positioning member 52; when the locking member 55 is in the unlocked position, the locking member 55 can be disconnected from the corresponding first positioning member 51 and / or the second positioning member 52 to enable the first positioning member 51 and the second positioning member 52 to move relative to each other. The locking member 55 can lock the first positioning member 51 and the second positioning member 52 so that the two will not produce relative displacement, and the first positioning member 51 and the second positioning member 52 can be moved closer to or farther away from each other to change the slot size of the second groove 53. When the connecting shaft 200 is inserted into the second slot, the first positioning member 51 and / or the second positioning member 52 can be moved closer to each other, so that the slot size of the second slot 53 is reduced to smaller than the diameter of the connecting shaft 200. In this way, the connecting shaft 200 will not disengage from the second slot 53, thereby limiting the moving distance between the wrench and the gear body 100, reducing the risk of the push assembly 2 disengaging from the gear body 100 during the process of turning the wrench, so that the wrench can stably drive the gear body 100 to rotate.

[0087] In some embodiments, the locking member 55 is hinged to the first positioning member 51, and the locking member 55 has a first locking surface 551 that is arranged at an angle to the moving direction of the second positioning member 52. When the locking member 55 is in the locked position, the first locking surface 551 abuts against the surface of the second positioning member 52 that is away from the first positioning member 51 along the moving direction. When the locking member 55 is in the unlocked position, the first locking surface 551 is separated from the second positioning member 52. Figure 6 , the locking member 55 is in the locked position, at which point the relative position between the first positioning member 51 and the second positioning member 52 is fixed; Figure 7 , the locking member 55 is in the unlocked position. At this time, the first positioning member 51 and the second positioning member 52 can move relative to each other, allowing the positioning assembly 5 to be assembled on the connecting shaft 200. In this embodiment, when the locking member 55 is in the locked position, the first positioning member 51 and the second positioning member 52 are relatively fixed, while the first positioning member 51 and the second positioning member 52 can move as a whole relative to the main body 1. In this way, the relative position between the positioning assembly 5 and the main body 1 can be adjusted within a small range to accommodate the rotation of the wrench. The first locking surface 551 can be perpendicular to the movement direction of the second positioning member 52. In this embodiment, the first locking surface 551 can be perpendicular to the X-axis direction shown in the figure.

[0088] In other embodiments, the locking member 55 is hingedly connected to the main body 1 and is provided with a locking groove. When the locking member is in the locked position, at least a portion of the first positioning member 51 and / or at least a portion of the second positioning member 52 is engaged with the locking groove. When the locking member is in the unlocked position, the locking member is separated from the corresponding first positioning member 51 and / or second positioning member 52. In this embodiment, when the locking member 55 is in the locked position, the first positioning member 51 and the second positioning member 52 are both fixed to the main body 1 and do not experience relative displacement. In this way, the positioning assembly 5 can provide stable support for the main body 1 during the rotation of the wrench.

[0089] Continue to refer to Figure 6 and Figure 7 The sidewall of the second groove 53 is a concave arc surface. Setting the sidewall of the second groove 53 as a concave arc surface can make the shape of the second groove 53 adapt to the shape of the connecting shaft 200. In this way, the contact area between the sidewall of the second groove 53 and the connecting shaft 200 can be increased, and the phenomenon of local wear of the sidewall of the second groove 53 can be reduced.

[0090] In some embodiments, the inner diameter of the second groove 53 is larger than the diameter of the connecting shaft 200 so that the side wall of the second groove 53 can form a gap with the peripheral side surface of the connecting shaft 200, thereby allowing a certain range of motion between the wrench and the gear body 100, thereby achieving position adjustment between the two, so that the thrust assembly 2 can be inserted into different tooth grooves of the gear body 100 to facilitate the rotation of the wrench.

[0091] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A wrench, characterized in that: include: Main body; as well as a push assembly rotatably connected to the main body and capable of switching between a first state and a second state relative to the main body, wherein at least a portion of the push assembly is configured to be inserted into a tooth groove of the gear body and abut against the gear teeth of the gear body, so that the gear body can be driven to rotate when the main body rotates; Among them, when the push assembly is in the first state, the main body rotates and can drive the gear body to rotate unidirectionally along the first direction; when the push assembly is in the second state, the main body rotates and can drive the gear body to rotate unidirectionally in the direction opposite to the first direction.

2. The wrench according to claim 1, wherein The push assembly includes a first claw and a second claw spaced apart on the main body. When the push assembly is in the first state, at least one of the first claw and the second claw abuts against the first side wall of the tooth groove; when the push assembly is in the second state, at least one of the first claw and the second claw abuts against the second side wall of the tooth groove opposite to the first side wall.

3. The wrench according to claim 2, wherein: The main body is provided with an adjusting component, which is connected to the first claw and the second claw and drives the first claw and the second claw to rotate so that the pushing component switches between the first state and the second state.

4. The wrench according to claim 3, wherein: The adjustment assembly includes a cam rotatably connected to the main body, the cam is located between the first claw and the second claw, the opposite sides of the cam are respectively against the first claw and the second claw, and the cam rotates relative to the main body and drives the first claw and the second claw to rotate.

5. The wrench according to any one of claims 1 to 4, characterized in that: The main body is provided with a first groove, and at least a portion of the push assembly is accommodated in the first groove.

6. The wrench according to any one of claims 1 to 4, characterized in that: The wrench further includes a positioning assembly provided on the main body, the positioning assembly being provided with a second groove for accommodating a connecting shaft connected to the gear body; When the push assembly is inserted into the tooth groove, the side wall of the second groove abuts against the peripheral side surface of the connecting shaft.

7. The wrench according to claim 6, wherein: The sidewall surface of the second groove is a concave arc surface.

8. The wrench according to claim 6, wherein: The positioning assembly includes a first positioning member and a second positioning member, and the first positioning member and the second positioning member are arranged to form the second groove. At least one of the first positioning member and the second positioning member is movably connected to the main body so that the first positioning member and the second positioning member can approach or move away from each other to adjust the notch size of the second groove.

9. The wrench according to claim 8, wherein A sliding groove is provided in a recessed manner on one side of the main body, and the first positioning member and / or the second positioning member are provided with a slider, and the slider is slidably connected to the sliding groove. The first positioning member and / or the second positioning member slides with the sliding groove through the slider to move closer to or away from each other.

10. The wrench according to claim 9, wherein The positioning assembly also includes a locking member, which is movably arranged on the main body and can be switched between a locked position and an unlocked position; wherein, when the locking member is in the locked position, the locking member is connected to the first positioning member and / or the second positioning member to fix the position between the first positioning member and the second positioning member; when the locking member is in the unlocked position, the locking member is disengaged from the corresponding first positioning member and / or the second positioning member to enable the first positioning member and the second positioning member to move relative to each other.

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