A jack

Abstract

The application provides a jack, which comprises a telescopic mechanism and a driving mechanism; one end of the telescopic mechanism is provided with a first part for being connected with a to-be-jacked piece; the other end of the telescopic mechanism is provided with a second part for being connected with a to-be-pulled piece; the one end of the telescopic mechanism is opposite to the other end of the telescopic mechanism; the driving mechanism is arranged on the telescopic mechanism and is used for driving the telescopic mechanism to perform telescopic movement; in the case that the telescopic mechanism performs telescopic movement, the one end of the telescopic mechanism can perform telescopic movement relative to the other end of the telescopic mechanism, so as to jack the to-be-jacked piece and / or pull the to-be-pulled piece. The application can realize pulling while jacking, and is suitable for the composite working condition of jacking and pulling.

Description

Technical Field

[0001] This application belongs to the field of maintenance equipment technology, and more specifically, relates to a jack. Background Technology

[0002] Jacks, as short-stroke lifting tools, are widely used in vehicle repair, mechanical equipment leveling, and infrastructure component alignment. Existing jacks are mainly divided into two types: mechanical screw jacks and hydraulically driven jacks. Mechanical screw jacks rely on screw drives for lifting. Hydraulically driven jacks utilize Pascal's hydraulic principle to achieve labor-saving lifting, with fast lifting speed and high load-bearing capacity. In related technologies, jacks are mainly used for short-distance vertical lifting of heavy objects, only capable of upward lifting, and cannot meet the needs of complex working conditions requiring both pushing and pulling. Summary of the Invention

[0003] In order to improve or solve the technical problem that jacks in related technologies are unable to handle the combined working conditions of pushing and pulling, the purpose of this application is to provide a jack.

[0004] To achieve the above objectives, in a first aspect, this application provides a jack, comprising: Telescopic mechanism; one end of the telescopic mechanism is provided with a first part for connecting with the component to be pushed; the other end of the telescopic mechanism is provided with a second part for connecting with the component to be pulled; one end of the telescopic mechanism is opposite to the other end of the telescopic mechanism; The drive mechanism is located on the telescopic mechanism and is used to drive the telescopic mechanism to perform telescopic movements. When the telescopic mechanism performs telescopic movements, one end of the telescopic mechanism can telescopically move relative to the other end of the telescopic mechanism to push the push member and / or pull the pull member.

[0005] The above technical solution addresses the pain point of existing jacks being unable to handle both pushing and pulling operations simultaneously. It sets up a first part at each end of the telescopic mechanism that can connect to the component to be pushed, and a second part that can connect to the component to be pulled. These parts, working in conjunction with a drive mechanism, enable bidirectional telescopic movement. During extension, the first part pushes the component outward; during retraction, the second part pulls the component inward. A single device can simultaneously or independently complete both types of operations without disassembling or changing tooling. This completely solves the industry problem of traditional jacks only being able to output force in one direction and requiring multiple devices to be coordinated and switched in complex conditions. It significantly improves operational efficiency in engineering scenarios such as bridge jacking and component relocation, while reducing the risk of force shifting and construction costs associated with multi-device collaboration.

[0006] Furthermore, the telescopic mechanism includes: a first piece, a second piece, a third piece, and a fourth piece; the first piece, the second piece, the third piece, and the fourth piece are sequentially rotatably connected end to end by a rotating connector to form a quadrilateral structure; The first part and the second part are respectively rotatably located at two corners of a pair of corners of the quadrilateral structure, and the driving mechanism is located at the other corner of the quadrilateral structure; when the driving mechanism drives the two corners of the other corner to move away from or closer to each other, the two corners of the pair of corners move away from or closer to each other, so as to realize the telescopic movement of the telescopic mechanism.

[0007] In the above technical solution, the quadrilateral structure is deeply adapted to the previous scheme with separate jacking and pulling connection points at both ends. Relying on the diagonal dynamic characteristics of the quadrilateral, the drive mechanism only needs to act on two corners of a set of opposite corners. Through the synchronous rotation of the first, second, third, and fourth parts, it can precisely drive another set of opposite corners where the first and second parts are installed to complete a stable opening, closing, and telescopic movement. This not only realizes the original bidirectional jacking and pulling function into a mechanical path that the structure can achieve, but also, thanks to the large stroke amplification characteristic of the quadrilateral structure, a larger jacking / pulling operation stroke can be obtained with a smaller drive stroke. At the same time, the overall structure is evenly distributed with force at the four hinge points. Compared with the traditional straight cylinder hydraulic jack, it can withstand higher composite working loads and will not have the problem of uneven load jamming during operation. This further enhances the reliability of a single device to simultaneously adapt to jacking and pulling composite operations, and also makes the overall structure of the equipment more compact, so that installation and operation can be completed smoothly in narrow construction spaces.

[0008] Furthermore, the rotating connector includes a first rotating connector and a second rotating connector; the first rotating connector and the second rotating connector are respectively disposed at two corners of the other diagonal portion; the driving mechanism includes: A rotating rod; the outer side of the rotating rod is provided with a first threaded portion along its length; the rotating rod passes through the first rotating connector and the second rotating connector; the first threaded portion is threadedly connected to the first rotating connector; the rotating rod is movably connected to the second rotating connector; And a power device for connecting to the rotating rod to drive the first threaded portion to move relative to the first rotating connector, so that the two corners of the other diagonal portion move away from or closer to each other.

[0009] In the above technical solution, the rotating rod is driven by a power device to rotate, and the two corners are moved closer or further apart by the threaded transmission. On the one hand, the threaded transmission has the advantages of self-locking, fine-tuning stroke, and uniform and stable output thrust, which can accurately control the distance between the two corners and is suitable for high-precision adjustment conditions such as component clamping and distance adjustment. On the other hand, only a single rotating rod passes through the two diagonal connecting parts at the same time, resulting in a simple and compact overall structure with fewer parts, convenient assembly, and less space occupation. At the same time, the combination of one threaded engagement and one movable hinge can achieve reliable linear push-pull transmission through the threaded pair, and can also eliminate the jamming and jamming problems caused by assembly coaxiality deviation by relying on the movable connection. The transmission is smooth and unobstructed, which greatly improves the smoothness of the adjustment action and the structural reliability. Diagonal bidirectional synchronous distance adjustment can be completed without the need for additional guide components, reducing the overall processing and assembly costs.

[0010] Furthermore, the first part is fixedly provided with a first fixing mechanism for detachably connecting with the component to be pushed; the second part is fixedly provided with a second fixing mechanism for detachably connecting with the component to be pulled; when the telescopic mechanism pushes the component to be pushed, the first part contacts the pushing component.

[0011] In the above technical solution, by fixing a detachable first fixing mechanism and a second fixing mechanism in the first part and the second part respectively, the first part directly abuts against the part to be pushed to complete the pushing force during operation. With the help of two sets of independent detachable fixing mechanisms, the jack can be quickly disassembled and connected with the part to be pushed and the part to be pulled without the need for additional matching adapters. The disassembly and assembly are convenient and efficient. In the pushing condition, the first part directly contacts and bears the pressure, and the force transmission is direct and stable. The fixing mechanism alone undertakes the connection and locking function in the pulling condition. The force paths of the two conditions are separated and do not interfere with each other, avoiding the problem of slippage and loosening caused by the mixed force of the connection structure when pushing and pulling combined operations, thus improving the safety of operation. At the same time, the detachable structure can be adapted to various specifications of components, expanding the application range of the jack.

[0012] Furthermore, the first part is provided with a first mounting hole; the first fixing mechanism includes: The first connector is used for detachable connection with the component to be pushed. The first threaded component is provided with the first connecting component at one end; the second threaded portion is provided on the outer side of the first threaded component; the other end of the first threaded component is threadedly connected to the first mounting hole; when the second threaded portion rotates relative to the first mounting hole, the other end of the first threaded component moves away from or closer to the first mounting hole to adjust the relative position of the first portion and the component to be pushed.

[0013] In the above technical solution, a first mounting hole is opened in the first part, and the first fixing mechanism adopts a first threaded part with a first connector at the end. By relying on the second threaded part on the outside of the first threaded part to engage with the threaded part of the first mounting hole, the end of the first threaded part can be extended or retracted by rotating the first threaded part, so as to flexibly adjust the relative distance between the first part and the part to be pushed. On the one hand, it can adapt to the parts to be pushed with different installation gaps without the need to add or remove shims, and has greater versatility. On the other hand, the threaded fine adjustment structure can accurately compensate for assembly deviations, ensure that the pushing force surface is completely in contact, and the force is evenly distributed without uneven load. At the same time, the first connector can be quickly and easily disassembled and assembled with the part to be pushed, which is convenient for disassembly and assembly. The overall adjustment and connection are integrated, the structure is simple, the operation is convenient, and the alignment accuracy and assembly efficiency of the pushing operation are effectively improved.

[0014] Furthermore, the second fixing mechanism includes a second connector; the second connector is disposed in the second part; the second connector is used for detachable connection with the member to be pulled.

[0015] In the above technical solution, the second part is equipped with an independent second connector as a second fixing mechanism, which can be quickly connected and disconnected with the part to be pulled. It is independent of the first fixing mechanism and has a clear division of labor. Pushing and pulling each have their own dedicated connection structure. The two working conditions do not interfere with each other, avoiding mutual interference of the connection structure during compound operations.

[0016] Furthermore, the second part is provided with a second mounting hole; the second fixing mechanism also includes a second threaded component; one end of the second threaded component is provided with a second connecting component; the outer side of the second threaded component is provided with a third threaded portion; the other end of the second threaded component is threadedly connected to the second mounting hole; when the third threaded portion rotates relative to the second mounting hole, the other end of the second threaded component moves away from or closer to the second mounting hole to adjust the relative position of the second part and the component to be pulled.

[0017] In the above technical solution, a second mounting hole is opened in the second part, and a second threaded part with a third thread is added to the second fixing mechanism. The second connecting part is integrated into the end of the second threaded part, and the third threaded part is threadedly engaged with the second mounting hole. This allows the second connecting part to be moved away from or closer to the second part by rotating the second threaded part. This precisely adjusts the relative installation position and fitting clearance between the second part and the part to be pulled, and matches with the first fixing mechanism of the first part which is adjustable. This allows the jack's pushing and pulling to be independently and adaptively adjusted and aligned, effectively compensating for workpiece installation errors and assembly gap deviations. It ensures the fitting accuracy and force coaxiality of the pushing and pulling operations, and eliminates problems such as uneven load, uneven force, and pulling slippage caused by alignment deviations. At the same time, the threaded fine-tuning structure enables stepless precise adjustment of the distance, eliminating the need for various shims to adapt to different working conditions. The detachable second connecting part enables quick disassembly and assembly of the part to be pulled. The structure is simple and compact, and the adjustment operation is convenient. This further improves the adaptability, alignment accuracy, and overall operational stability of the jack in the push-pull composite working conditions, and greatly expands the applicable scenarios of the equipment.

[0018] Furthermore, the first part is a frame structure; the side of the frame structure is rotatably connected to one of the corners of a pair of corners of the quadrilateral structure; the first part is provided with a connecting rod; the free end of the connecting rod is provided with the first mounting hole.

[0019] The above technical solution sets the first part as a frame structure, with the side of the frame structure rotatably connected to one corner of a quadrilateral structure. Simultaneously, a first mounting hole is provided at the free end of the connecting rod of the first part. On one hand, the frame-type first part structure has high rigidity and good overall stress distribution, effectively dispersing the jacking load and avoiding structural deformation caused by local stress concentration, thus ensuring the structural stability of the jacking operation. On the other hand, through the rotatable connection with the quadrilateral structure, it can adaptively accommodate minor angular deviations during operation, effectively avoiding the jamming and force misalignment problems that easily occur with rigid connections, and improving the flexibility of equipment operation. On the one hand, the first mounting hole for installing the first fixing mechanism is integrated into the free end of the connecting rod, which accurately positions the assembly position of the first fixing mechanism and reasonably optimizes the installation layout of the jacking end. This provides a stable installation foundation for the threaded fine adjustment and detachable docking structure of the first fixing mechanism, ensuring the stability of the jacking end position adjustment and disassembly operation. In conjunction with the adjustable second fixing mechanism of the pulling end, the jack as a whole has the ability to adaptively adjust the angle, and achieves the operational advantages of precise alignment at both ends, adjustable gap, and convenient disassembly and assembly, further optimizing the force application accuracy and structural reliability under complex working conditions.

[0020] Furthermore, a gripping part is provided on the outer side of the body of the first threaded component.

[0021] Furthermore, one end of the rotating rod is provided with a connecting hole, which is used to connect to the power output end of the power device.

[0022] This application provides a jack that employs a telescopic mechanism and a drive mechanism. A first part is provided at one end of the telescopic mechanism for connecting to a component to be pushed, and a second part is provided at the other end for connecting to a component to be pulled. When the telescopic mechanism is in telescopic motion, one end of the telescopic mechanism can telescopically move relative to the other end of the telescopic mechanism to push the component to be pushed and / or pull the component to be pulled. This application can achieve both pushing and pulling simultaneously, making it suitable for combined pushing and pulling conditions. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the jack's structure.

[0025] Figure 2 This is a schematic diagram of the structure of a telescopic mechanism according to one embodiment.

[0026] Figure 3 This is a schematic diagram of the first fixed mechanism.

[0027] Figure 4 This is a schematic diagram of the combined structure of the drive mechanism and the telescopic mechanism.

[0028] Figure 5 This is a schematic diagram of the drive mechanism in one embodiment.

[0029] Figure 6 This is a structural schematic diagram of the drive mechanism, the first rotating connector, and the second rotating connector.

[0030] Figure 7 This is a schematic diagram of the structure of the device to be pushed and pulled.

[0031] The diagram is marked as follows: 1-Telescopic mechanism, 2-Drive mechanism, 3-First part, 4-Second part, 5-First piece, 6-Second piece, 7-Third piece, 8-Fourth piece, 9-First connecting piece, 10-First semi-circular ring, 11-Second semi-circular ring, 12-Grip part, 13-Second threaded part, 14-First threaded part, 15-Rotating rod, 16-Connecting hole, 17-First rotating connecting piece, 18-Second rotating connecting piece, 19-Third rotating connecting piece a, 20-Third rotating connecting piece b, 21-Fourth rotating connecting piece a, 22-Fourth rotating connecting piece b, 23-Connecting rod, 24-First mounting hole, 25-First threaded piece, 26-Second connecting piece, 27-Hook, 28-Horizontal bar, 29-Column, 30-Handle, 31-Frame, 01-First fixing mechanism, 02-Second fixing mechanism. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0034] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0036] This application provides a jack, see the attached embodiment. Figures 1-6As shown, it includes a telescopic mechanism 1 and a driving mechanism 2; one end of the telescopic mechanism 1 is provided with a first part 3 for connecting with the component to be pushed; the other end of the telescopic mechanism 1 is provided with a second part 4 for connecting with the component to be pulled; one end of the telescopic mechanism 1 is opposite to the other end of the telescopic mechanism 1; the driving mechanism 2 is provided on the telescopic mechanism 1 and is used to drive the telescopic mechanism 1 to perform telescopic movement; when the telescopic mechanism 1 performs telescopic movement, one end of the telescopic mechanism 1 can perform telescopic movement relative to the other end of the telescopic mechanism 1 to push the component to be pushed and / or pull the component to be pulled.

[0037] In some embodiments, the jack includes a telescopic mechanism 1 and a drive mechanism 2; see below. Figure 1 As shown, the upper end of the telescopic mechanism 1 is provided with a first part 3 for connecting with the part to be pushed; the lower end of the telescopic mechanism 1 is provided with a second part 4 for connecting with the part to be pulled; the driving mechanism 2 is used to drive the telescopic mechanism 1 to perform telescopic movement; when the telescopic mechanism 1 performs telescopic movement, the upper end of the telescopic mechanism 1 can perform telescopic movement relative to the lower end of the telescopic mechanism 1, thereby realizing the pushing of the part to be pushed and / or the pulling of the part to be pulled.

[0038] In one embodiment, the application scenario of the jack described above can be found in [reference needed]. Figure 7 As shown, the devices to be pushed and pulled include a hook 27, a crossbar 28, a column 29, a handle 30, and a frame 31. The hook 27 is suspended from the crossbar 28, and the left and right ends of the crossbar 28 are connected to the column 29. The frame 31 is connected to the bottom of the column 29, and the handle 30 is fitted onto the frame 31. The components to be pushed are the hook 27 and the crossbar 28; the components to be pulled are the handle 30 and the frame 31.

[0039] In use, the jack is placed in the space between the hook 27 and the handle 30, with the first part 3 abutting against the bottom of the hook 27 and the second part 4 connected and fixed to the handle 30. Then, the drive mechanism 2 is activated to cause the upper end of the telescopic mechanism 1 to extend or retract relative to the lower end of the telescopic mechanism 1, bringing the first part 3 and the second part 4 of the telescopic mechanism 1 closer together. At the same time, the handle 30 slowly detaches from the frame 31 under the pulling action of the second part 4 until it is separated.

[0040] In the above Figure 7 In the scenario shown, the component to be pushed is a fixed part; it can be understood that the jack in the above embodiment is still applicable to scenarios where the component to be pushed is a movable part.

[0041] For example, in some embodiments, Figure 7 The left and right ends of the horizontal bar 28 shown can be movably connected to the column 29, and the frame 31 is fitted with a handle 30.

[0042] The aforementioned jack can also be equipped with an installation device. The jack is placed in the space between the hook 27 and the handle 30. The installation device can fix the jack to the column 29. The first part 3 abuts against the lower part of the hook 27, and the second part 4 is connected and fixed to the handle 30. The drive mechanism 2 causes the upper end of the telescopic mechanism 1 to telescopically extend relative to the lower end of the telescopic mechanism 1. Thus, while pushing the hook 27 upward, the handle 30 can be pulled upward simultaneously. The installation device can consist of four connecting rods. The first part 5, the second part 6, the third part 7, and the fourth part 8 are each detachably fixed to the column 29 via a connecting rod. The installation device can also be other existing fixing mechanisms, which will not be elaborated here.

[0043] Therefore, this application employs a telescopic mechanism 1 and a driving mechanism 2. By providing a first part 3 at one end of the telescopic mechanism 1 for connecting with the component to be pushed, and a second part 4 at the other end of the telescopic mechanism 1 for connecting with the component to be pulled, when the telescopic mechanism 1 is in telescopic motion, one end of the telescopic mechanism 1 can telescopically move relative to the other end of the telescopic mechanism 1 to push the component to be pushed and / or pull the component to be pulled. This application can achieve both pushing and pulling simultaneously, and is suitable for combined pushing and pulling conditions.

[0044] Furthermore, the telescopic mechanism 1 includes: a first component 5, a second component 6, a third component 7, and a fourth component 8; the first component 5, the second component 6, the third component 7, and the fourth component 8 are sequentially connected end to end by a rotating connector to form a quadrilateral structure; The first part 3 and the second part 4 are respectively rotatably located at two corners of a pair of corners of the quadrilateral structure, and the driving mechanism 2 is located at the other corner of the quadrilateral structure; when the driving mechanism 2 drives the two corners of the other corner to move away from or closer to each other, the two corners of the pair of corners move away from or closer to each other, so as to realize the telescopic movement of the telescopic mechanism 1.

[0045] The telescopic mechanism 1 includes: a first piece 5, a second piece 6, a third piece 7, and a fourth piece 8; the first piece 5, the second piece 6, the third piece 7, and the fourth piece 8 are connected end to end by a rotating connector to form a quadrilateral structure.

[0046] It is understandable that each corner of the quadrilateral structure can be connected by a single rotating connector or by multiple rotating connectors.

[0047] For example, see Figure 2As shown, the rotating connector includes a first rotating connector 17 and a second rotating connector 18; the telescopic mechanism 1 includes a first part 5, a second part 6, a third part 7, and a fourth part 8; the right end of the first part 5 is provided with a third rotating connector a19, and the left end of the second part 6 is provided with a third rotating connector b20; optionally, both the third rotating connector a19 and the third rotating connector b20 are rotatably connected to the first part 3; the left end of the first part 5 is connected to the left end of the fourth part 8 through the first rotating connector 17, and the right end of the second part 6 is connected to the right end of the third part 7 through the second rotating connector 18; the right end of the fourth part 8 is provided with a fourth rotating connector a21, and the left end of the third part 7 is provided with a fourth rotating connector b22; optionally, both the fourth rotating connector a21 and the fourth rotating connector b22 are rotatably connected to the second part 4.

[0048] Optionally, both part 3 and part 4 are frame structures; the sides of the frame structures are rotatably connected to the corners of the quadrilateral structures. (See also...) Figure 1 and Figure 2 As shown, the side parts of the frame structure of the first part 3 are rotatably connected to the third rotating connector a19 and the third rotating connector b20, respectively; the side parts of the frame structure of the second part 4 are rotatably connected to the fourth rotating connector a21 and the fourth rotating connector b22, respectively.

[0049] See Figure 1 As shown, the first part 3 is rotatably located at one corner of the upper quadrilateral structure, and the second part 4 is rotatably located at the other corner of the lower quadrilateral structure; the drive mechanism 2 connects the left and right corners of the quadrilateral structure; when the drive mechanism 2 moves the left and right corners closer to each other, the upper corner of the quadrilateral structure and the lower corner of the quadrilateral structure move away from each other; when the drive mechanism 2 moves the left and right corners further apart, the upper corner of the quadrilateral structure and the lower corner of the quadrilateral structure move closer to each other; thus, the telescopic movement of the telescopic mechanism 1 is realized.

[0050] Furthermore, the first rotating connector 17 and the second rotating connector 18 are respectively located at two corners of the other diagonal portion; the driving mechanism 2 includes a rotating rod 15 and a power device; the outer side of the rotating rod 15 is provided with a first threaded portion 14 along its length; the rotating rod 15 passes through the first rotating connector 17 and the second rotating connector 18; the first threaded portion 14 is threadedly connected to the first rotating connector 17; the rotating rod 15 is movably connected to the second rotating connector 18; the power device is used to connect to the rotating rod 15 to drive the first threaded portion 14 to move relative to the first rotating connector 17, so that the two corners of the other diagonal portion move away from or closer to each other.

[0051] See Figures 4-6 As shown, the drive mechanism 2 includes a rotating rod 15 and a power unit (not shown in the figure). A first threaded portion 14 is provided on the outer side of the rotating rod 15 along its length. The left end of the rotating rod 15 passes through a second rotating connector 18 and a first rotating connector 17 in sequence. The first threaded portion 14 is threadedly connected to the first threaded portion 14 on the outer side of the first rotating connector 17. The right end of the rotating rod 15 is located to the right of the second rotating connector 18. To facilitate connection to the power unit, a connecting hole 16 is provided at the right end of the rotating rod 15, which is used to connect to the power output end of the power unit.

[0052] See Figure 5 and Figure 6 As shown, when the power device drives the rotating rod 15 to rotate, the first threaded part 14 rotates relative to the first rotating connector 17. The first rotating connector 17 and the second rotating connector 18 move closer or further apart, thereby causing the first part 3 and the second part 4 to move further apart or closer together, thus realizing the telescopic movement of the telescopic mechanism 1.

[0053] Furthermore, the first part 3 is fixedly provided with a first fixing mechanism 01 for detachably connecting with the push-to-push component; the second part 4 is fixedly provided with a second fixing mechanism 02 for detachably connecting with the pull-to-pull component; when the telescopic mechanism 1 pushes the push-to-push component, the first part 3 contacts the push-to-push component.

[0054] See Figure 1 and Figure 7 As shown, the first fixing mechanism 01 is used to fix the first part 3 to the crossbar 28. When pushing, the upper side of the first part 3 contacts the bottom of the hook 27. The second fixing mechanism 02 is used to fix the second part 4 to the handle 30. When pulling, the lower side of the second part 4 contacts the upper side of the handle 30. Thus, the jack can be more stably used with the parts to be pushed and pulled.

[0055] Furthermore, the first part 3 is provided with a first mounting hole 24; the first fixing mechanism 01 includes: a first connecting member 9 and a first threaded member 25; the first connecting member 9 is used for detachable connection with the part to be pushed; one end of the first threaded member 25 is provided with the first connecting member 9; the outer side of the first threaded member 25 is provided with a second threaded portion 13; the other end of the first threaded member 25 is threadedly connected to the first mounting hole 24; when the second threaded portion 13 rotates relative to the first mounting hole 24, the other end of the first threaded member 25 moves away from or closer to the first mounting hole 24 to adjust the relative position of the first part 3 and the part to be pushed.

[0056] To facilitate the installation of the first fixing mechanism 01, the first part 3 is provided with a first mounting hole 24. Optionally, see [reference needed]. Figure 6 As shown, the first part 3 is provided with a connecting rod 23; the upper end of the connecting rod 23 is provided with the first mounting hole 24, and the lower end of the connecting rod 23 is connected to the first part 3.

[0057] See Figure 3 As shown, the first fixing mechanism 01 includes a first connecting member 9 and a first threaded member 25; optionally, the first connecting member 9 is used for detachable connection with the crossbar 28. Further, the first connecting member 9 includes a collar; the collar is connected to the first threaded member 25. Specifically, the collar includes a first semi-circular ring 10 and a second semi-circular ring 11; the second semi-circular ring 11 is threadedly connected to the upper end of the first connecting member 9. The first semi-circular ring 10 and the second semi-circular ring 11 are detachably connected by bolts. In use, the collar is placed on the outside of the crossbar 28 and the first semi-circular ring 10 and the second semi-circular ring 11 are fixed with bolts.

[0058] In order to facilitate gripping and rotating the first threaded component 25, thereby adjusting the height of the first fixing mechanism 01, a gripping part 12 is provided on the outer side of the body of the first threaded component 25.

[0059] Furthermore, the second fixing mechanism 02 includes a second connector 26; the second connector 26 is disposed in the second part 4; the second connector 26 is used for detachable connection with the member to be pulled.

[0060] Optionally, the second connector 26 includes a collar; the collar includes a first semicircular ring 10 and a second semicircular ring 11; the first semicircular ring 10 and the second semicircular ring 11 are detachably connected by bolts, and the collar can be fixed on the handle 30 during use.

[0061] In some other possible embodiments, the second fixing mechanism can also be used to adjust the distance between the second part and the member to be pulled. Specifically, the second part 4 is provided with a second mounting hole; the second fixing mechanism 02 also includes a second threaded member; one end of the second threaded member is provided with a second connecting member 26; the outer side of the second threaded member is provided with a third threaded portion; the other end of the second threaded member is threadedly connected to the second mounting hole; when the third threaded portion rotates relative to the second mounting hole, the other end of the second threaded member moves away from or closer to the second mounting hole to adjust the relative position of the second part 4 and the member to be pulled.

[0062] In some embodiments, the second fixing mechanism 02 and the first fixing mechanism 01 have similar structures.

[0063] In some embodiments, the second fixing mechanism 02 includes a second threaded member and a second connecting member 26. In this embodiment, the second threaded member is structurally similar to the first threaded member 25, the second connecting member 26 is structurally similar to the first connecting member 9, the third threaded portion is structurally similar to the second threaded portion 13, and the second portion 4 is provided with a second mounting hole, which is structurally similar to the first mounting hole 24. Therefore, when the third threaded portion rotates relative to the second mounting hole, the second threaded member adjusts the relative position of the second portion 4 and the member to be pulled by moving away from or closer to the second mounting hole.

[0064] Therefore, the jack in this embodiment can achieve a wide range of height adjustment and lock at any height, adapting to various working conditions such as plane support, hole pulling, and profile clamping; the first part 3 and the second part 4 can output lifting thrust and pulling force, realizing bidirectional work with a single tool.

[0065] The jacks in this application can be applied to pushing and pulling operations on the control handles of long-handled tools in the following scenarios. Specifically, during nuclear fuel handling, the control handles of long-handled tools need to be manually operated to control the opening and closing of the grippers by pressing down and pulling up.

[0066] Operational challenges: 1. Operating the control handle requires the operator to lean out of the crane, making it difficult to exert force, and the handle itself also has significant resistance; 2. All components are made of stainless steel, and after hundreds or thousands of friction cycles, the stainless steel develops scratches, making the control handle even more difficult to operate. This places a heavy burden on the crane operator. After a major overhaul, unloading, pouring, and loading materials puts severe strain on the operator's shoulders and arms. During operation, because one hand needs to control the control handle while the other hand needs to insert the pin, repeated attempts to insert it fail often occur, leading to reduced efficiency.

[0067] The jack using this application is well-suited for operating the control handle of the control device in this scenario.

[0068] The jack in this application can perform functions such as pushing, pulling, height adjustment, pushing and fixing, and pulling and fixing. It can replace many kinds of tools and reduce costs. It is steplessly adjustable throughout the stroke and can be quickly locked at any position to meet the height requirements of different working conditions. The first part 3 and the second part 4 at the upper and lower ends of the jack are rigidly fixed to prevent slippage and tipping, which significantly improves the safety of heavy loads. It has a compact structure, small size and light weight, making it easy to carry and use on site. The adjustment, fixing and pushing and pulling are integrated, reducing tooling changes and improving work efficiency.

[0069] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A jack, characterized in that, include: Telescopic mechanism; One end of the telescopic mechanism is provided with a first part for connecting with the component to be pushed. The other end of the telescopic mechanism is provided with a second part for connecting to the component to be pulled; one end of the telescopic mechanism is opposite to the other end of the telescopic mechanism. The drive mechanism is located on the telescopic mechanism and is used to drive the telescopic mechanism to perform telescopic movements. When the telescopic mechanism performs telescopic movements, one end of the telescopic mechanism can telescopically move relative to the other end of the telescopic mechanism to push the push member and / or pull the pull member.

2. The jack according to claim 1, characterized in that, The telescopic mechanism includes: a first component, a second component, a third component, and a fourth component; the first component, the second component, the third component, and the fourth component are sequentially connected end to end by a rotating connector to form a quadrilateral structure; The first part and the second part are respectively rotatably located at two corners of a pair of corners of the quadrilateral structure, and the driving mechanism is located at the other corner of the quadrilateral structure; when the driving mechanism drives the two corners of the other corner to move away from or closer to each other, the two corners of the pair of corners move away from or closer to each other, so as to realize the telescopic movement of the telescopic mechanism.

3. The jack according to claim 2, characterized in that, The rotating connector includes a first rotating connector and a second rotating connector; the first rotating connector and the second rotating connector are respectively disposed at two corners of the other diagonal portion; the driving mechanism includes: A rotating rod; the outer side of the rotating rod is provided with a first threaded portion along its length; the rotating rod passes through the first rotating connector and the second rotating connector; the first threaded portion is threadedly connected to the first rotating connector; the rotating rod is movably connected to the second rotating connector; And a power device for connecting to the rotating rod to drive the first threaded portion to move relative to the first rotating connector, so that the two corners of the other diagonal portion move away from or closer to each other.

4. The jack according to claim 2, characterized in that, The first part is fixedly provided with a first fixing mechanism for detachably connecting with the component to be pushed; the second part is fixedly provided with a second fixing mechanism for detachably connecting with the component to be pulled; when the telescopic mechanism pushes the component to be pushed, the first part contacts the pushing component.

5. The jack according to claim 2, characterized in that, The first part is provided with a first mounting hole; the first fixing mechanism includes: The first connector is used for detachable connection with the component to be pushed. The first threaded component is provided with the first connecting component at one end; the second threaded portion is provided on the outer side of the first threaded component; the other end of the first threaded component is threadedly connected to the first mounting hole; when the second threaded portion rotates relative to the first mounting hole, the other end of the first threaded component moves away from or closer to the first mounting hole to adjust the relative position of the first portion and the component to be pushed.

6. The jack according to claim 5, characterized in that, The second fixing mechanism includes a second connector; the second connector is disposed in the second part; the second connector is used for detachable connection with the member to be pulled.

7. The jack according to claim 6, characterized in that, The second part is provided with a second mounting hole; the second fixing mechanism also includes a second threaded component; one end of the second threaded component is provided with a second connecting component; the outer side of the second threaded component is provided with a third threaded portion; the other end of the second threaded component is threadedly connected to the second mounting hole; when the third threaded portion rotates relative to the second mounting hole, the other end of the second threaded component moves away from or closer to the second mounting hole to adjust the relative position of the second part and the component to be pulled.

8. The jack according to claim 5, characterized in that, The first part is a frame structure; the side of the frame structure is rotatably connected to one of the corners of a pair of corners of the quadrilateral structure; the first part is provided with a connecting rod; the free end of the connecting rod is provided with the first mounting hole.

9. The jack according to claim 5, characterized in that, The first threaded part has a gripping part on its outer side.

10. The jack according to claim 3, characterized in that, One end of the rotating rod is provided with a connecting hole, which is used to connect to the power output end of the power device.

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