A collaborative locking anti-jamming device

Abstract

This utility model relates to a collaborative locking anti-jamming device, comprising a holding unit, a housing unit, a connecting unit, a fixed wrench unit, an automatic wrench unit, a drive unit, a transmission unit, a detection unit, a limit unit, and a control unit. Its advantages lie in that, through the cooperation of the detection unit and the control unit, the maximum output torque and the maximum rotation angle of the automatic wrench unit are controlled, achieving the technical effect of preventing the automatic wrench from self-jamming; through the cooperation of the limit unit and the transmission unit, mechanical hard limiting is achieved, fundamentally preventing jamming due to excessive angle; through the elastic detachable cooperation of the fixed wrench unit and the connecting unit, quick loading and unloading and emergency disengagement are achieved, facilitating safe withdrawal in case of jamming; through the modular design of the automatic wrench unit, quick replacement is achieved, adapting to various nut specifications; through the collaborative action of each unit, a complete device optimization is formed from anti-jamming to precise control, achieving standardized and highly reliable locking operations.

Description

Technical Field

[0001] This utility model relates to the field of automated mechanical equipment, and in particular to a collaborative locking anti-jamming device. Background Technology

[0002] In the field of high-purity, high-hazard fluid transportation, VCR connectors are widely used due to their superior metal-face sealing performance. The sealing quality of these connectors directly affects the safety and purity of the entire fluid system; therefore, their installation and disassembly processes require extremely strict control, necessitating high-precision and highly consistent tightening. Currently, the industry is gradually transitioning from traditional manual wrenches to automated tools for tightening VCR connectors. Existing representative automatic wrench solutions typically use a drive unit to rotate a wrench head. However, while pursuing automation, such solutions suffer from several inherent structural challenges: 1. To achieve multi-turn rotation, the design of its transmission gear pair is often very complex, and there is a lack of efficient empirical formulas to calculate its long-term meshing and disengagement motion trajectory.

[0003] 2. Because automatic wrenches can rotate up to n*360°, their moving parts, after prolonged operation in confined spaces, are highly susceptible to mechanical interference with the fixed wrench used to provide the reaction force, leading to a "jamming" phenomenon. Once jammed, the automatic wrench cannot be properly disengaged from the connector. The traditional solution is to perform a forced rotation operation, but this operation can easily scratch the delicate metal gasket surface of the VCR connector, damaging its sealing performance, rendering the expensive connector assembly unusable, and even creating a potential leakage hazard.

[0004] Therefore, there is a need in this field for an automatic wrench that can solve the aforementioned problems at their structural root. It must not only achieve precise torque and angle control to ensure tightening quality, but more importantly, it must possess an inherent anti-jamming and easy-to-disengage mechanism to address the demands for operational safety and tool reliability in high-value, high-requirement application scenarios. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a collaborative locking and anti-jamming device to solve problems such as the inability to accurately control the locking torque, the ease with which mechanical jamming can occur due to excessive rotation angle leading to difficulty in exiting the device, and the lack of versatility in adapting to nuts of different specifications.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A cooperative locking anti-jamming device is used for cooperative locking of a joint, wherein nuts are respectively provided at both ends of the joint, comprising: A gripping unit for the operator to hold and operate; A housing unit, disposed at one end of the holding unit, is used to house functional components; A connecting unit is disposed on the side end of the outer casing unit; A fixed wrench unit is removably connected to the connecting unit for securing one end of the nut of the connector during tightening operations to prevent it from rotating. An automatic wrench unit is disposed at the end of the housing unit and is used to automatically rotate the nut at the other end of the connector during a tightening operation; A drive unit, disposed inside the housing unit, is used to provide rotational power to the automatic wrench unit; A transmission unit is disposed inside the outer casing unit and is connected to the drive unit and the automatic wrench unit respectively, for transmitting power to the automatic wrench unit; A detection unit, a portion of which is disposed in the drive unit and another portion of which is disposed in the transmission unit, is used to detect parameters; A limiting unit is disposed inside the outer shell unit and is used to cooperate with the detection unit to limit the rotation angle of the automatic wrench unit; The control unit is communicatively connected to the drive unit and the detection unit, and is used to control the start and stop of the drive unit, control the start and stop of the drive unit according to the detection signal of the detection unit, and set the detection threshold of the detection unit.

[0007] In some embodiments, the housing unit includes: A first housing element is disposed at one end of the holding unit and is used to accommodate the drive unit and the control unit; A second housing element, connected to the first housing element, is used to house the transmission unit, the detection unit, the limiting unit, and the automatic wrench unit; At least one first sliding element is disposed inside the second housing element and slidably connected to the automatic wrench unit to limit the sliding direction of the automatic wrench unit.

[0008] In some embodiments, the second housing element includes: A transmission housing, the front end of which is connected to the outer housing unit, for accommodating the transmission unit; A rotating component, the front end of which is fixedly connected to a transmission receiving component, is used to accommodate the automatic wrench unit and limit the rotation range of the automatic wrench unit.

[0009] In some embodiments, the connection unit includes: A connecting element, wherein the connecting element is disposed at the side end of the housing unit; A movable groove element is disposed on the side of the connecting body element away from the housing unit, for accommodating the fixed wrench unit; A movable baffle element is movably connected to the connecting body element and is used to restrict the fixed wrench unit inside the movable slot element to prevent the fixed wrench unit from moving in a direction perpendicular to the connecting body element.

[0010] In some embodiments, the automatic wrench unit includes: An open gear element, wherein the open gear element is connected to the transmission unit for rotating under the action of the transmission unit; At least one second sliding element is provided, which is disposed on the side end of the open gear element and slidably connected to the housing unit, for limiting the rotation direction of the open gear element; An automatic wrench element is movably disposed inside the opening of the open gear element, and is used to follow the rotation of the open gear element to automatically rotate the other end nut of the connector during the tightening operation.

[0011] In some embodiments, the open gear element includes: A gear component that meshes with the transmission unit, and a second sliding element is provided on the side end of the gear component for rotating under the action of the transmission unit; An opening groove is provided at the open end of the gear component and is removably connected to the automatic wrench unit.

[0012] In some embodiments, the automatic wrench element includes: A wrench assembly is disposed inside the opening of the open gear assembly and is used to rotate with the open gear assembly to automatically rotate the other end nut of the connector during the locking operation. At least one pin is provided on the side of the wrench and is connected to the open gear element.

[0013] In some embodiments, the transmission unit includes: A first transmission gear element is connected to the output end of the drive unit and is used to rotate under the action of the drive unit. The second transmission gear element is connected to the first transmission gear element and the automatic wrench unit respectively, and is used to drive the automatic wrench unit to rotate under the action of the first transmission gear element.

[0014] In some embodiments, the detection unit includes: A torque detection element is disposed in the drive unit and communicates with the control unit to detect the output torque of the drive unit. An angle detection element is disposed in the transmission unit and is communicatively connected to the control unit for detecting the rotation angle of the transmission unit.

[0015] In some embodiments, the limiting unit includes: At least one limiting plate element is disposed on the automatic wrench unit to limit the rotation angle of the automatic wrench unit to no more than 90°.

[0016] In some of these embodiments, it also includes: At least one reset element is disposed inside the automatic wrench unit for automatically resetting the automatic wrench unit after rotation; At least one magnetic element is disposed on the back end of the corresponding reset element for magnetically attracting the automatic wrench unit after reset.

[0017] In some embodiments, the driving unit includes: A driving element, which is disposed inside the housing unit, is used as a power source to provide rotational power; A coupling element, the input end of which is connected to the drive element and the output end of which is connected to the transmission unit, is used to connect the drive element and the transmission unit and transmit torque.

[0018] The present invention adopts the above technical solution and has the following technical effects compared with the prior art: 1) By cooperating with the torque detection unit and the angle detection unit, and combined with the control unit, the maximum output torque and the maximum rotation angle of the automatic wrench unit can be controlled, thereby achieving the technical effect of avoiding the automatic wrench from jamming. 2) Through the cooperation of the limiting unit and the transmission unit, mechanical hard limiting is achieved, so that the maximum rotation angle of the automatic wrench unit does not exceed 90°, thus fundamentally preventing jamming caused by excessive rotation angle. 3) Through the flexible and detachable connection between the fixed wrench unit and the connecting unit, quick loading and unloading and emergency disengagement can be achieved, so as to achieve the technical effect of safely removing the wrench without turning it in the case of jamming. 4) Through the modular design of the automatic wrench unit, different specifications of wrench parts can be quickly changed, achieving a universal technical effect that can adapt to nuts of various sizes; 5) Through the synergistic effect of the above units, the entire system can be optimized from anti-jamming structure to precise control, achieving the final technical effect of standardized and highly reliable locking operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a collaborative locking and anti-jamming device according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the usage state of the collaborative locking anti-jamming device according to an embodiment of the present utility model; Figure 3 This is a circuit connection block diagram of the collaborative locking and anti-jamming device according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the outer shell unit according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the connection unit according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of a fixed wrench unit according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of an automatic wrench unit according to an embodiment of the present utility model; Figure 8 This is a frame diagram of the driving unit according to an embodiment of the present utility model; Figure 9 This is a schematic diagram of the transmission unit engaging the automatic wrench unit according to an embodiment of the present utility model; Figure 10 This is a schematic diagram of the limiting unit according to an embodiment of the present utility model.

[0020] The reference numerals in the attached figures are: 100. Holding unit; 200, Housing unit; 210, First housing element; 220, Second housing element; 221, Transmission housing; 222, Rotating element; 230, First sliding element; 300. Connecting unit; 310. Connecting body element; 320. Movable slot element; 330. Movable baffle element; 400. Fixed wrench unit; 410. Handle component; 420. Fixed wrench component; 500 Automatic wrench unit; 510 Open gear element; 511 Gear component; 512 Open slot component; 520 Second sliding element; 530 Automatic wrench element; 531 Wrench component; 532 Pin component; 600. Drive unit; 610. Drive element; 620. Coupling element; 700. Transmission unit; 710. First transmission gear element; 720. Second transmission gear element; 800. Detection unit; 810. Torque detection element; 820. Angle detection element; 900, Limiting unit; 910, Limiting plate component; 920, Reset component; 930, Magnetic attraction component. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0022] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0023] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0024] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that includes a series of steps or units (elements) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or apparatus. The terms “connected,” “linked,” “coupled,” and similar words used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms “multiple” / “several” used in this application refer to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can indicate: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following objects are in an "or" relationship. The terms "first," "second," and "third" used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects.

[0025] An illustrative embodiment of this utility model, such as Figures 1-10As shown, a collaborative locking anti-jamming device is used for collaborative locking of a joint, with nuts provided at both ends of the joint. The device includes a holding unit 100, a housing unit 200, a connecting unit 300, a fixed wrench unit 400, an automatic wrench unit 500, a drive unit 600, a transmission unit 700, a detection unit 800, a limit unit 900, and a control unit. The gripping unit 100 is used by the operator to hold and operate the device; the housing unit 200 is located at one end of the gripping unit 100 and houses the functional components; the connecting unit 300 is located at the side end of the housing unit 200; the fixed wrench unit 400 is removably connected to the connecting unit 300 and is used to fix one end of the connector to prevent rotation during tightening operations; the automatic wrench unit 500 is located at the end of the housing unit 200 and is used to automatically rotate the other end of the connector during tightening operations; the drive unit 600 is located inside the housing unit 200 and provides rotational power to the automatic wrench unit 500; and the transmission unit 700 is located at the other end of the housing unit 200. The transmission unit 700 is internally connected to the drive unit 600 and the automatic wrench unit 500, respectively, to transmit power to the automatic wrench unit 500; a part of the detection unit 800 is located in the drive unit 600, and another part of the detection unit 800 is located in the transmission unit 700, for detecting parameters; the limit unit 900 is located inside the housing unit 200, for cooperating with the detection unit 800 to limit the rotation angle of the automatic wrench unit 500; the control unit is communicatively connected to the drive unit 600 and the detection unit 800, for controlling the start and stop of the drive unit 600, controlling the start and stop of the drive unit 600 according to the detection signal of the detection unit 800, and setting the detection threshold of the detection unit 800.

[0026] In some embodiments, the grip unit 100 includes a handle and an anti-slip element. One end of the handle is rigidly connected to the housing unit 200 to provide a stable grip for the operator; the anti-slip element covers the surface of the handle to enhance operational stability by increasing the coefficient of friction of the grip surface and improving the force distribution.

[0027] In this invention, the handle design conforms to the ergonomic streamline, and its outer contour fits the natural grip curve of the palm.

[0028] In this invention, the anti-slip component includes, but is not limited to, one or more combinations of soft materials with high coefficient of friction or surface textured structures.

[0029] In this invention, the anti-slip component is applied to the handle surface through overmolding or bonding processes.

[0030] like Figure 4As shown, the housing unit 200 includes a first housing element 210, a second housing element 220, and at least one first sliding element 230. The first housing element 210 is disposed at one end of the holding unit 100 and is used to house the drive unit 600 and the control unit. The second housing element 220 is connected to the first housing element 210 and is used to house the transmission unit 700, the detection unit 800, the limiting unit 900, and the automatic wrench unit 500. The first sliding element 230 is disposed inside the second housing element 220 and is slidably connected to the automatic wrench unit 500 to limit the sliding direction of the automatic wrench unit 500.

[0031] In some of these embodiments, the first housing element 210 is configured as a hollow cubic structure, the internal cavity dimensions of which are configured to accommodate the installation and wiring requirements of the drive unit 600 and the control unit.

[0032] In this invention, the material of the first housing element 210 is selected from engineering plastics or aluminum alloys. Engineering plastics are preferred to achieve a lightweight design of the device while maintaining sufficient structural strength.

[0033] In some of these embodiments, the connection between the first housing element 210 and the holding unit 100 is a smoothly transitioned curved surface connection.

[0034] In this invention, the first outer shell element 210 and the gripping unit 100 are structurally integrated through a fixed connection, including but not limited to integral injection molding. Specifically, the first outer shell element 210 and the handle are fixedly connected by bolts or integrally molded.

[0035] In this invention, the axial length of the first housing element 210 is greater than the length of the handle of the gripping unit 100, and the axial width of the first housing element 210 is greater than the maximum width of the handle of the gripping unit 100.

[0036] In some embodiments, the connection between the second housing element 220 and the first housing element 210 is a smooth curved interference fit.

[0037] In this invention, the second housing element 220 and the first housing element 210 are structurally integrated through a fixed connection, including but not limited to integral injection molding.

[0038] In this invention, the axial length of the second housing element 220 is less than the axial length of the first housing element 210, and the radial width of the second housing element 220 is less than the radial width of the first housing element 210.

[0039] Furthermore, the height of the second housing element 220 is slightly larger than that of the first housing element 210 to accommodate the installation requirements of the internal transmission unit 700 and the automatic wrench unit 500.

[0040] In some embodiments, the second housing element 220 has an inner cavity for accommodating the transmission unit 700, the detection unit 800, the limiting unit 900, and the automatic wrench unit 500.

[0041] In this invention, the material of the second housing element 220 is selected from engineering plastics or aluminum alloys. Engineering plastics are preferred to achieve a lightweight design of the device while maintaining sufficient structural strength.

[0042] In some embodiments, the second housing element 220 includes a transmission receiving member 221 and a rotating member 222. The transmission receiving member 221 is connected to the first housing element 210 and is used to receive the transmission unit 700. The rotating member 222 is disposed at the end of the transmission receiving member 221, and a first sliding element 230 is disposed on the inner side of the rotating member 222 for receiving the automatic wrench unit 500 and limiting the rotation range of the automatic wrench unit 500.

[0043] In this invention, the transmission housing 221 is a hollow cavity extending from front to back, with a quadrilateral cross-section, used to house the transmission unit 700. This front-to-back through-hole design allows the transmission unit 700 to be connected to the drive unit 600 and the automatic wrench unit 500 respectively.

[0044] In this invention, the rotating component 222 is a hollow cavity extending from front to back, used to house the automatic wrench unit 500. This front-to-back design allows the automatic wrench unit 500 to be connected to the transmission unit 700 and to engage the nut to be tightened.

[0045] In this invention, the cross-section of the rotating component 222 is crescent-shaped, which is formed by two arcs with different radii but the same center.

[0046] In this invention, the front section length of the rotating member 222 is the same as the end section length of the transmission receiving member 221, and the front section width is the same as the end section width of the transmission receiving member 221.

[0047] In one embodiment, the first sliding element 230 is formed inside the cavity of the rotating part 222 of the second housing element 220.

[0048] In this invention, the first sliding element 230 is formed on the inner cavity surface of the rotating part 222 by one of the following processes: milling, injection molding, or die casting.

[0049] In this invention, the first sliding element 230 has an arc-shaped structure, and its curvature is adapted to the movement trajectory of the automatic wrench unit 500.

[0050] In this invention, the arc diameter of the first sliding element 230 is smaller than the outer diameter of the rotating element 222, and the arc diameter of the first sliding element 230 is larger than the inner diameter of the rotating element 222.

[0051] In some embodiments, there are multiple first sliding elements 230. These multiple first sliding elements 230 are symmetrically distributed at the top and / or bottom positions of the inner cavity of the rotating member 222.

[0052] In one embodiment, a plurality of first sliding elements 230 are arranged concentrically, with the curvature centers of each sliding element coinciding.

[0053] In one embodiment, there are two first sliding elements 230. One first sliding element 230 is disposed on the upper inner surface of the rotating member 222, and the other first sliding element 230 is disposed on the lower inner surface of the rotating member 222. The positions of the two first sliding elements 230 may correspond or may not correspond.

[0054] In some embodiments, a portion (at least two) of the first sliding elements 230 are disposed on the upper surface of the inner side of the rotating member 222, and a portion (at least two) of the first sliding elements 230 are disposed on the lower surface of the inner side of the rotating member 222, forming a guide structure with corresponding upper and lower sides.

[0055] In some of these embodiments, the first sliding element 230 includes, but is not limited to, a sliding groove and a sliding protrusion.

[0056] like Figure 5 As shown, the connecting unit 300 includes a connecting body element 310, a movable groove element 320, and a movable baffle element 330. The connecting body element 310 is disposed on the side of the housing unit 200; the movable groove element 320 is disposed on the side of the connecting body element 310 away from the housing unit 200, and is used to accommodate the fixed wrench unit 400; the movable baffle element 330 is movably connected to the connecting body element 310, and is used to restrict the fixed wrench unit 400 within the movable groove element 320 to prevent the fixed wrench unit 400 from moving in a direction perpendicular to the connecting body element 310.

[0057] Specifically, the connecting element 310 is disposed on the side end of the first housing element 210; the movable groove element 320 is disposed on the side of the connecting element 310 away from the first housing element 210.

[0058] In this utility model, the shape of the connecting element 310 is preferably a regular cuboid, and the corners are rounded.

[0059] In this invention, the connecting element 310 is made of engineering plastic or aluminum alloy. The engineering plastic is preferably ABS or nylon, and the aluminum alloy is preferably aerospace-grade aluminum.

[0060] In some embodiments, the connecting element 310 is fixedly connected to the first housing element 210, including but not limited to welding.

[0061] In this invention, the length of the connecting element 310 is less than the length of the first housing element 210, and the width of the connecting element 310 is less than the width of the first housing element 210.

[0062] In some of these embodiments, the movable slot element 320 is disposed at the center of the connecting body element 310.

[0063] In this invention, the movable groove element 320 is machined into the surface of the connecting body element 310 in a recessed structure. Its processing methods include, but are not limited to, one or more combinations of milling, casting, stamping, or injection molding.

[0064] In this utility model, the movable groove element 320 is a rectangular through groove with rounded corners at the edges, and the radius of the rounded corners is adapted to the connection of the fixed wrench unit 400.

[0065] In this invention, the material of the movable groove element 320 is the same as that of the connecting element 310.

[0066] In some embodiments, the movable groove element 320 and the fixed wrench unit 400 are movably connected by a clearance fit, with the clearance controlled within the range of 2 to 3 mm.

[0067] In this utility model, the length of the movable groove element 320 does not exceed the length of the connecting body element 310, the width of the movable groove element 320 does not exceed the width of the connecting body element 310, and the depth of the movable groove element 320 does not exceed the depth of the connecting body element 310.

[0068] In some embodiments, the movable baffle element 330 is movably connected to the connecting body element 310, and the movable connection includes, but is not limited to, a hinge.

[0069] In this invention, the movable baffle element 330 is preferably fan-shaped.

[0070] In this invention, the material of the movable baffle element 330 is the same as that of the connecting body.

[0071] In some embodiments, the movable baffle element 330 is located on the upper end face of the movable groove element 320, and can completely cover the part of the handle element 410 that is accommodated in the movable groove element 320, so that it cannot fall out.

[0072] Furthermore, the radial length of the movable baffle element 330 is greater than the radial length of the movable slot element 320.

[0073] like Figure 6 As shown, the fixed wrench unit 400 includes a handle element 410 and a fixed wrench element 420. The first end of the handle element 410 is removably connected to the connecting unit 300; the fixed wrench element 420 is disposed at the second end of the handle element 410 and is used to engage the fixed nut during the tightening operation to prevent the fixed nut from rotating during the tightening process.

[0074] Specifically, the first end of the handle element 410 is removably connected to the movable slot element 320.

[0075] In this invention, the handle element 410 and the movable groove element 320 are tightly connected by an insertion, and there will be no loosening during use.

[0076] In this invention, the handle element 410 is removably connected to the movable groove element 320, and different specifications of fixed wrench units 400 can be replaced according to usage requirements.

[0077] In this utility model, the handle element 410 and the fixed wrench element 420 are conventional technical means in this technical field, and will not be described in detail here.

[0078] like Figure 7 As shown, the automatic wrench unit 500 includes an open gear element 510, at least one second sliding element 520, and an automatic wrench element 530. The open gear element 510 is pulsatorically connected to the transmission unit 700 and rotates under the action of the transmission unit 700. The second sliding element 520 is disposed on the side end of the open gear element 510 and slidably connected to the housing unit 200, limiting the rotation direction of the open gear element 510. The automatic wrench element 530 is movably disposed inside the opening of the open gear element 510 and rotates with the open gear element 510 to automatically rotate the other end nut of the connector during tightening operations.

[0079] Specifically, the open gear element 510 is rotatably disposed on the second housing element 220; the second sliding element 520 is slidably connected to the first sliding element 230.

[0080] More specifically, the open gear element 510 is rotatably disposed on the rotating member 222.

[0081] In some embodiments, the open gear element 510 includes a gear element 511 and an open slot element 512. The gear element 511 meshes with the transmission unit 700, and a second sliding element 520 is provided on the side end of the gear element 511 for rotating under the action of the transmission unit 700. The open slot element 512 is disposed at the open end of the gear element 511 and is removably connected to the automatic wrench unit 500.

[0082] In this invention, the gear component 511 is a notched gear structure with a specific meshing area. The meshing arc segment of the notched gear contains a complete tooth profile, while the non-meshing area adopts a smooth arc surface with a toothless design.

[0083] In this utility model, the gear component 511 is made of high-strength engineering plastic or surface-hardened metal material.

[0084] In some embodiments, the diameter of the gear 511 is smaller than the diameter of the rotating part 222.

[0085] In some embodiments, the opening slot 512 is an opening structure provided on the gear 511.

[0086] In this utility model, the open slot 512 has a pentagonal slot structure with one side open for inserting the nut to be tightened.

[0087] In some embodiments, the maximum length of the opening slot 512 is not greater than the radius of the gear 511, and its maximum width is also not greater than the radius of the gear 511.

[0088] In this invention, the shape of the second sliding element 520 matches the shape of the first sliding element 230. Preferably, the second sliding element 520 is arc-shaped.

[0089] In this invention, the contour curvature of the second sliding element 520 is adapted to the contour curvature of the first sliding element 230, so that the automatic wrench unit 500 can slide smoothly along a predetermined arc trajectory.

[0090] In this invention, the material of the second sliding element 520 is consistent with that of the gear component 511, and high-strength engineering plastic or surface-hardened metal material is selected to ensure the material compatibility of the overall structure.

[0091] In some embodiments, the mounting position of the second sliding element 520 on the open gear element 510 can be arranged in a coaxial alignment or staggered distribution manner according to actual needs, and the specific position configuration is adapted to the distribution of the first sliding element 230 in the rotating member 222.

[0092] In some embodiments, the positional relationship between the second sliding element 520 and the first sliding element 230 is precisely aligned, so that the open gear element 510 can slide smoothly within the rotating member 222 in strict accordance with the motion trajectory defined by the first sliding element 230 during rotation.

[0093] In some embodiments, the maximum outer circle diameter of the second sliding element 520 is smaller than the addendum circle diameter of the gear 511, and the minimum inner circle diameter of the second sliding element 520 is larger than the root circle diameter of the gear 511.

[0094] In some embodiments, the radial height of the second sliding element 520 is slightly greater than the groove depth of the first sliding element 230.

[0095] In some embodiments, there are multiple second sliding elements 520. These multiple second sliding elements 520 are symmetrically distributed at the top and bottom of the gear component 511.

[0096] In one embodiment, a plurality of second sliding elements 520 are arranged concentrically, and the curvature centers of the first sliding element 230 and the second sliding element 520 coincide.

[0097] In one embodiment, there are two second sliding elements 520. One second sliding element 520 is disposed on the upper surface of the gear component 511, and the other second sliding element 520 is disposed on the lower surface of the gear component 511. The positions of the two second sliding elements 520 may correspond to each other or may not correspond.

[0098] In some embodiments, a portion (at least two) of the second sliding elements 520 are disposed on the upper surface of the gear component 511, and a portion (at least two) of the second sliding elements 520 are disposed on the lower surface of the gear component 511, forming a guide structure with corresponding upper and lower parts.

[0099] In some embodiments, the number of second sliding elements 520 corresponds exactly to the number of first sliding elements 230. Each first sliding element 230 is equipped with a corresponding second sliding element 520 to form a sliding fit.

[0100] In some of these embodiments, the second sliding element 520 includes, but is not limited to, a sliding groove and a sliding protrusion.

[0101] In this invention, the automatic wrench element 530 and the inner end face of the open slot 512 are removably connected. A plug-in connection is preferred to allow for the replacement of different specifications of the automatic wrench element 530 according to actual usage requirements.

[0102] In this invention, by replacing the automatic wrench element 530, the clamping range formed together with the opening slot 512 can be adjusted.

[0103] In some embodiments, the automatic wrench element 530 includes a wrench member 531 and at least one pin member 532. The wrench member 531 is disposed inside the opening of the open gear member 511 and is used to rotate with the open gear member 510 to automatically rotate the other end nut of the connector during tightening operations. At least one pin member 532 is disposed on the side of the wrench member 531 and is connected to the open gear member 510.

[0104] In this utility model, the shape of the wrench part 531 conforms to the shape of the open groove part 512.

[0105] Specifically, the wrench component 531 is designed in multiple sizes. By changing the wrench component 531 to different sizes, the final clamping diameter can be changed, so that the automatic wrench unit 500 can be used for a range of nuts of different sizes.

[0106] In this utility model, the material properties of the wrench component 531 are highly compatible with those of the gear component 511, and it is preferred to use high-strength engineering plastics or surface-hardened metal materials of the same series.

[0107] In some of these embodiments, the side of the wrench member 531 is in close contact with the inner side of the opening groove member 512.

[0108] In some of these embodiments, the outer contour dimensions of the wrench member 531 are equal to the inner side dimensions of the opening slot member 512.

[0109] In this utility model, the pin 532 is elongated and is inserted into the corresponding slot on the side wall of the open slot 512, thereby movably connecting the wrench 531 to the open gear element 510.

[0110] In this invention, the material properties of the pin 532 are consistent with those of the wrench 531, ensuring the material performance matching of the connecting parts.

[0111] In some embodiments, the pin 532 is movably connected to the inside of the slot 512.

[0112] In some of these embodiments, the dimensional opening groove 512 of the pin 532 accommodates a groove of the wrench 531 that is dimensionally matched.

[0113] In some embodiments, the number of pins 532 is at least one. When there is a single pin 532, it is arranged around the entire periphery of the wrench 531 to achieve full circumferential connection; when there are two pins 532, they are symmetrically arranged on the left and right sides of the wrench 531 for insertion and fixation; when there are three or more pins 532, the pins 532 are evenly arranged on the contact surfaces of the wrench 531 and the slotted part 512.

[0114] like Figure 3 and Figure 10 As shown, the drive unit 600 includes a drive element 610 and a coupling element 620. The drive element 610 is disposed inside the housing unit 200 and is used as a power source to provide rotational output. The input end of the coupling element 620 is connected to the drive element 610, and the output end is connected to the transmission unit 700, which is used to connect the drive motor and the transmission mechanism and transmit torque.

[0115] Specifically, the drive element 610 is disposed inside the first housing element 210.

[0116] Specifically, the drive element 610 includes, but is not limited to, any one of a servo motor, a stepper motor, or a DC brushed motor, the selection of which depends on the required torque, speed, and control accuracy.

[0117] Specifically, the coupling element 620 includes, but is not limited to, any one of rigid couplings, flexible couplings, diaphragm couplings, or quincunx couplings, used to compensate for possible minor radial, angular, or axial deviations while connecting two shafts to transmit power.

[0118] like Figure 8 As shown, the transmission unit 700 also includes a first transmission gear element 710 and a second transmission gear element 720. The first transmission gear element 710 is connected to the output end of the drive unit 600 and is used to rotate under the action of the drive unit 600. The second transmission gear element 720 is connected to both the first transmission gear element 710 and the automatic wrench unit 500, and is used to drive the automatic wrench unit 500 to rotate under the action of the first transmission gear element 710.

[0119] Specifically, the first transmission gear element 710 is disposed inside the first housing element 210 and connected to the coupling element 620 for transmitting the power output by the coupling element 620; the second transmission gear element 720 is disposed inside the second housing element 220 and is connected to the open gear element 510 for driving the open gear element 510 to rotate.

[0120] More specifically, the second transmission gear element 720 is disposed inside the transmission housing 221.

[0121] In this invention, the first transmission gear element 710 is preferably made of alloy steel.

[0122] In some of these embodiments, the first transmission gear element 710 is disposed inside the transmission housing 221.

[0123] In some of these embodiments, the maximum outer dimension of the first transmission gear element 710 is smaller than the inner cavity dimension of the transmission housing 221.

[0124] In some of these embodiments, the first transmission gear element 710 includes, but is not limited to, a spur gear mechanism.

[0125] In this utility model, the material of the second transmission gear element 720 is compatible with the material of the first transmission gear element 710.

[0126] In some of these embodiments, the maximum outer dimension of the second transmission gear element 720 is smaller than the inner cavity dimension of the transmission housing 221.

[0127] In some embodiments, the diameter of the second transmission gear element 720 is larger than the diameter of the first transmission gear element 710.

[0128] In some of these embodiments, the second transmission gear element 720 includes, but is not limited to, a spur gear mechanism.

[0129] like Figure 3 , Figure 8 and Figure 10 As shown, the detection unit 800 includes a torque detection element 810 and an angle detection element 820. The torque detection element 810 is disposed on the output shaft of the drive unit 600 and is communicatively connected to the control unit, and is used to detect the output torque of the drive unit 600; the angle detection element 820 is disposed on the output end of the transmission unit 700 and is communicatively connected to the control unit, and is used to detect the rotation angle output by the transmission unit 700.

[0130] Specifically, the torque detection element 810 is disposed on the coupling element 620 and is used to detect the output torque of the drive element 610; the angle detection element 820 is disposed inside the automatic wrench unit 500 and the housing unit 200 and is used to detect the rotation angle of the automatic wrench unit 500.

[0131] In some of these embodiments, the torque sensing element 810 is connected in series between the output shaft of the drive unit 600 and the coupling element 620.

[0132] In some embodiments, the torque sensing element 810 is fixedly connected to the coupling element 620, including but not limited to a flexible pin coupling connection.

[0133] In this invention, the torque detection element 810 includes, but is not limited to, any one of a strain gauge torque sensor, a magnetoelastic torque sensor, or a photoelectric torque sensor.

[0134] In some embodiments, the angle detection element 820 includes a first angle sensor and a second angle sensor. The first angle sensor is disposed on the open gear element 510 and is used to output its rotation angle signal; the second angle sensor is disposed on the inner side of the rotating member 222 and is used to receive the rotation angle signal, convert it into an electrical signal, and output it to the control unit.

[0135] In this invention, the first angle sensor includes, but is not limited to, a radially magnetized micromagnet.

[0136] Preferably, the first angle sensor is disposed on the back center of the open gear element 510.

[0137] In this invention, the second angle sensor includes, but is not limited to, a magnetic angle sensor chip.

[0138] like Figure 9 As shown, the limiting unit 900 includes at least one limiting plate element 910. The limiting plate element 910 is disposed on the automatic wrench unit 500 and is used to limit the rotation angle of the automatic wrench unit 500 to no more than 90°.

[0139] Specifically, the limiting plate element 910 is disposed on the first sliding element 230.

[0140] In this invention, the shape of the limiting plate element 910 matches the radial cross section of the first sliding element 230.

[0141] In this invention, the limiting plate element 910 is made of a metal material. Preferably, it is made of the same aluminum alloy or stainless steel as the rotating part 222.

[0142] In this invention, the limiting plate element 910 is fixedly connected to the first sliding element 230, including but not limited to welding.

[0143] In this invention, the length of the limiting plate element 910 is equal to the inner length of the first sliding element 230, and the height of the limiting plate element 910 is not greater than the depth of the first sliding element 230.

[0144] In this invention, the arrangement of the ends of the limiting plate element 910 and the open gear element 510 in the rotation direction relative to the center of the open gear element 510 ensures that the central angle formed between them is no greater than 90°. This central angle determines the maximum allowable rotation angle of the open gear element 510.

[0145] In this invention, the number of limiting plate elements 910 and the number of first sliding elements 230 are set to have a one-to-one correspondence.

[0146] In one embodiment, the limiting unit 900 further includes at least one reset element 920 and at least one magnetic element 930. The reset elements 920 are respectively disposed inside the automatic wrench unit 500 and are used to automatically reset the automatic wrench unit 500 after rotation. The magnetic elements 930 are respectively disposed on the back end of the corresponding reset element 920 and are used to magnetically attract the automatic wrench unit 500 after reset.

[0147] Specifically, the reset element 920 is disposed on the limit plate element 910.

[0148] In this utility model, one end of the reset element 920 is fixedly connected to the limiting plate element 910, including but not limited to welding.

[0149] In this invention, the arrangement of the tightest compression surface of the reset element 920 and the rotational end of the open gear element 510 relative to the center of the open gear element 510 is such that the central angle formed between them is no greater than 90°, and this central angle determines the maximum allowable rotation angle of the open gear element 510.

[0150] In some embodiments, the reset element 920 includes a spring and a spring plate. One end of the spring is fixedly connected to the limiting plate element 910 to provide the elastic force required for the reset of the open gear element 510; one end of the spring plate is fixedly connected to the other end of the spring to integrate the forces of multiple springs and ensure that all parts of the open gear element 510 receive uniform reset force.

[0151] In this invention, the spring is preferably made of Mn spring steel or stainless steel, which has good fatigue resistance and corrosion resistance.

[0152] In this invention, the outer dimensions of the spring are smaller than the outline dimensions of the limiting plate element 910.

[0153] The spring plate is located at the other end where the spring is connected to the limiting plate element 910.

[0154] In this invention, the shape of the spring plate is the same as the shape of the limiting plate element 910.

[0155] In this invention, the spring plate is made of hard plastic or metal, and its material is preferably compatible with the material of the first sliding element 230.

[0156] In some embodiments, a spring plate is disposed on the other end face of the limiting plate element 910 that is connected to the spring.

[0157] In some of these embodiments, the spring plate is fixedly connected to the other end of the spring.

[0158] In some embodiments, the length of the spring plate is equal to the inner length of the first sliding element 230, and the height of the spring plate is not greater than the depth of the first sliding element 230.

[0159] In some embodiments, the number of reset elements 920 corresponds one-to-one with the number of limit plate elements 910.

[0160] In some embodiments, the number of reset elements 920 is the same as the number of first sliding elements 230.

[0161] In this invention, the magnetic element 930 is preferably made of neodymium iron boron permanent magnet or sintered ferrite, which has high magnetic energy product and stable magnetic properties.

[0162] In this invention, the external dimensions of the magnetic attraction element 930 are smaller than the mounting area dimensions of the limiting plate element 910.

[0163] The method of using this utility model is as follows: I. Equipment Preparation and Initialization Confirm that the automatic wrench is in its initial state: the open gear element 510 is stably held in its initial position by the attraction of the magnetic element 930.

[0164] Based on the size of the nut of the connector to be tightened, select the appropriate automatic wrench element 530 and fixed wrench unit 400. The selected wrench element 531 is slidably mounted in the open slot 512 of the open gear element 510 via the pin 532; at the same time, the handle element 410 of the selected fixed wrench unit 400 is placed in the movable slot element 320 of the connecting unit 300 and reliably locked by rotating the movable stop element 330.

[0165] II. Preset Parameters and Installation Tools The target torque threshold and maximum rotation angle threshold for this locking operation are set by the control unit.

[0166] After manually pre-tightening the connector, insert the automatic wrench unit 500 into the nut that needs to be tightened, and at the same time insert the fixed wrench unit 400 into the other nut that needs to be fixed.

[0167] Third, perform the locking operation. The drive element 610 is activated, and the torque it generates is transmitted to the open gear element 510 via the coupling element 620, the first transmission gear element 710, and the second transmission gear element 720, driving the automatic wrench element 530 to rotate and tighten the nut. During the tightening process, the torque detection element 810 monitors the output torque of the drive element 610 in real time, and the angle detection element 820 monitors the rotation angle of the open gear element 510 in real time. When the real-time monitoring data reaches either the preset torque threshold or the preset angle threshold, the control unit immediately issues a stop command to the drive element 610 to terminate the tightening operation. This dual control mechanism ensures tightening accuracy and prevents over-rotation.

[0168] IV. Tool Exit and Reset After tightening, the operator will remove the automatic wrench from the connector.

[0169] If the automatic wrench becomes stuck due to mechanical interference and cannot retract properly, there is no need to force it. The operator can directly unscrew the movable stop element 330 to remove the fixed wrench unit 400 from its movable slot element 320. This operation releases the mechanical constraint causing the jamming, allowing the automatic wrench unit 500 to retract smoothly.

[0170] After the tool is removed, the open gear element 510 automatically resets to its initial position under the action of the reset element 920 and is fixed by the magnetic element 930, ready to perform the next operation.

[0171] The advantages of this utility model are as follows: 1) By cooperating with the torque detection unit and the angle detection unit, and combined with the control unit, the maximum output torque and the maximum rotation angle of the automatic wrench unit can be controlled, thereby achieving the technical effect of avoiding the automatic wrench from jamming. 2) Through the cooperation of the limiting unit and the transmission unit, mechanical hard limiting is achieved, so that the maximum rotation angle of the automatic wrench unit does not exceed 90°, thus fundamentally preventing jamming caused by excessive rotation angle. 3) Through the flexible and detachable connection between the fixed wrench unit and the connecting unit, quick loading and unloading and emergency disengagement can be achieved, so as to achieve the technical effect of safely removing the wrench without turning it in the case of jamming. 4) Through the modular design of the automatic wrench components in the automatic wrench unit, different specifications of wrench parts can be quickly replaced, achieving a universal technical effect that can adapt to nuts of various sizes. 5) Through the synergistic effect of the above units, the entire system can be optimized from anti-jamming structure to precise control, achieving the final technical effect of standardized and highly reliable locking operation.

[0172] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cooperative locking anti-seizing device for a cooperative locking joint, both ends of the joint being provided with nuts, characterized in that, include: A gripping unit for the operator to hold and operate; A housing unit, disposed at one end of the holding unit, is used to house functional components; A connecting unit is disposed on the side end of the outer casing unit; A fixed wrench unit is removably connected to the connecting unit for securing one end of the nut of the connector during tightening operations to prevent it from rotating. An automatic wrench unit is disposed at the end of the housing unit and is used to automatically rotate the nut at the other end of the connector during tightening operations; A drive unit, disposed inside the housing unit, is used to provide rotational power to the automatic wrench unit; A transmission unit is disposed inside the outer casing unit and is connected to the drive unit and the automatic wrench unit respectively, for transmitting power to the automatic wrench unit; A detection unit, a portion of which is disposed in the drive unit and another portion of which is disposed in the transmission unit, is used to detect parameters; A limiting unit is disposed inside the outer shell unit and is used to cooperate with the detection unit to limit the rotation angle of the automatic wrench unit; The control unit is communicatively connected to the drive unit and the detection unit, and is used to control the start and stop of the drive unit, control the start and stop of the drive unit according to the detection signal of the detection unit, and set the detection threshold of the detection unit.

2. The cooperative locking anti-jamming device according to claim 1, characterized in that, The outer casing unit includes: A first housing element is disposed at one end of the holding unit and is used to accommodate the drive unit and the control unit; A second housing element, connected to the first housing element, is used to house the transmission unit, the detection unit, the limiting unit, and the automatic wrench unit; At least one first sliding element is disposed inside the second housing element and slidably connected to the automatic wrench unit to limit the sliding direction of the automatic wrench unit.

3. The cooperative locking anti-jamming device according to claim 2, characterized in that, The second housing element includes: A transmission housing, connected to the first housing element, for accommodating the transmission unit; A rotating component is disposed at the end of the transmission receiving component, and the first sliding element is disposed on the inner side of the rotating component for accommodating the automatic wrench unit and limiting the rotation range of the automatic wrench unit.

4. The cooperative locking anti-jamming device according to claim 1, characterized in that, The connection unit includes: A connecting element, wherein the connecting element is disposed at the side end of the housing unit; A movable groove element is disposed on the side of the connecting body element away from the housing unit, for accommodating the fixed wrench unit; A movable baffle element is movably connected to the connecting body element and is used to restrict the fixed wrench unit inside the movable slot element to prevent the fixed wrench unit from moving in a direction perpendicular to the connecting body element.

5. The cooperative locking anti-jamming device according to claim 1, characterized in that, The automatic wrench unit includes: An open gear element, wherein the open gear element is connected to the transmission unit for rotating under the action of the transmission unit; At least one second sliding element is provided, which is disposed on the side end of the open gear element and slidably connected to the housing unit, for limiting the rotation direction of the open gear element; An automatic wrench element is movably disposed inside the opening of the open gear element, and is used to follow the rotation of the open gear element to automatically rotate the other end nut of the connector during the tightening operation.

6. The cooperative locking anti-jamming device according to claim 5, characterized in that, The open gear element includes: A gear component that meshes with the transmission unit, and a second sliding element is provided on the side end of the gear component for rotating under the action of the transmission unit; An opening groove; the opening groove is disposed at the open end of the gear component and is removably connected to the automatic wrench unit; and / or The automatic wrench component includes: A wrench assembly is disposed inside the opening of the open gear assembly and is used to rotate with the open gear assembly to automatically rotate the other end nut of the connector during the locking operation. At least one pin is provided on the side of the wrench and is connected to the open gear element.

7. The cooperative locking anti-jamming device according to claim 1, characterized in that, The transmission unit includes: A first transmission gear element is connected to the output end of the drive unit and is used to rotate under the action of the drive unit. The second transmission gear element is connected to the first transmission gear element and the automatic wrench unit respectively, and is used to drive the automatic wrench unit to rotate under the action of the first transmission gear element.

8. The cooperative locking anti-jamming device according to claim 1, characterized in that, The detection unit includes: A torque detection element is disposed in the drive unit and communicates with the control unit to detect the output torque of the drive unit. An angle detection element is disposed in the transmission unit and is communicatively connected to the control unit for detecting the rotation angle of the transmission unit.

9. The cooperative locking anti-jamming device according to claim 1, characterized in that, The limiting unit includes: At least one limiting plate element, the limiting plate element being disposed on the automatic wrench unit, is used to limit the rotation angle of the automatic wrench unit to no more than 90°; and / or At least one reset element is disposed inside the automatic wrench unit for automatically resetting the automatic wrench unit after rotation; At least one magnetic element is disposed on the back end of the corresponding reset element for magnetically attracting the automatic wrench unit after reset.

10. The cooperative locking anti-jamming device according to claim 1, characterized in that, The driving unit includes: A driving element, which is disposed inside the housing unit, is used as a power source to provide rotational power; A coupling element, the input end of which is connected to the drive element and the output end of which is connected to the transmission unit, is used to connect the drive element and the transmission unit and transmit torque.

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