Jack assembly

Abstract

The utility model belongs to the technical field of jacks, and particularly relates to a jack assembly which comprises a jack body, a first disc is arranged over the jack body, a sliding groove is formed in the first disc, the upper end of the jack body penetrates through the first disc and extends into the sliding groove, and the jack body is matched with the first disc and the sliding groove in an inserted mode. The fixing assembly is located in the sliding groove and used for fixing the first disc to the jack body. The fixing plate is fixedly installed at the bottom of the jack body, a power cavity is formed in the fixing plate, a plurality of cylinders are installed in the power cavity in a sliding mode, and fixing blocks are fixedly installed at the ends, close to each other, of the cylinders. Meanwhile, the contact area between the whole device and the ground is increased, the pressure intensity is reduced, and therefore the whole device cannot enter the ground with soft soil texture in the using process.

Description

Technical Field

[0001] The utility model belongs to the technical field of jacks, and in particular relates to a jack assembly. Background Art

[0002] A jack is a small and light lifting equipment that uses a rigid lifting piece as a working device and can lift heavy objects within a small stroke of a top support or a bottom support claw. Jacks are mainly used in factories, mines, transportation and other departments for vehicle repair and other lifting and supporting work. Their structure is light, strong, flexible and reliable, and can be carried and operated by one person.

[0003] For example, a Chinese patent with publication number CN213651708U discloses a hydraulic jack, including a hydraulic jack body, a base connected to the bottom of the hydraulic jack body, a handle mechanism installed on the outside of the hydraulic jack body, an operating rod connected to the outside of the hydraulic jack body, an anti-skid mechanism arranged on the outside of the handle mechanism, and the anti-skid mechanism includes a first anti-skid sleeve; the utility model can conveniently complete the installation and fixation of the handle body through the setting of the handle mechanism, and the assembly process is simple and convenient, which achieves the effect of facilitating the user to take and carry the hydraulic jack body; the utility model can conveniently complete the installation and fixation of the handle body through the setting of the handle mechanism, and the assembly process is simple and convenient, which achieves the effect of facilitating the user to take and carry the hydraulic jack body; the utility model can only press the outside of the first anti-skid sleeve and the second anti-skid sleeve through the setting of the anti-skid mechanism, and make the locking block stuck in the first anti-skid sleeve, and then insert the locking rod, which can improve the friction of the contact part when the user holds the handle body.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when in use, such as: the device may damage the lifted items due to the small contact area on the top when in use, and personnel need to place a pad or gasket of appropriate size on the top of the jack to increase the contact area, but the position of the pad or gasket may shift when in use, and when the device is used on a soft ground, the device body may easily enter the soft ground, making it impossible to remove the entire device. In view of this, we propose a jack assembly. Utility Model Content

[0006] The purpose of the utility model is to provide a jack assembly to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides a jack assembly, comprising:

[0008] A jack body, wherein a disc 1 is arranged directly above the jack body, a sliding groove is provided in the disc 1, the upper end of the jack body passes through the disc 1 and extends into the sliding groove, and the jack body is plugged and matched with the disc 1 and the sliding groove;

[0009] A fixing assembly, the fixing assembly is located in the sliding groove and is used to fix the disc 1 on the jack body;

[0010] A fixing plate, the fixing plate is fixedly installed at the bottom of the jack body, a power cavity is opened in the fixing plate, a plurality of cylinders are slidably installed in the power cavity, a fixing block is fixedly installed at one end of the plurality of cylinders close to each other, the fixing block is slidably connected with the power cavity, a spring 2 is sleeved on the cylinder, the two ends of the spring 2 are respectively fixed to one side of the corresponding fixing block and the inner wall of the power cavity, a plurality of cylinders at one end away from each other penetrate the power cavity and extend to the outside and are fixedly installed with a support block, the support block is plug-fitted with the fixing plate;

[0011] A power assembly is located in the power cavity and is used to drive a plurality of cylinders to slide.

[0012] In the technical solution, the jack body is then inserted into the disc one through the provided fixing assembly, and then the jack body is inserted into the sliding groove. When the jack body is inserted to a suitable position, the position of the disc one can be fixed through the provided fixing assembly, and the disc one can increase the force bearing area of ​​the object being lifted, so that the object being lifted will not be damaged. When the disc one is not needed, the disc one can be removed through the above operation;

[0013] When the jack body is used on a ground with relatively soft soil, the fixed assembly provided can drive the disc three to rotate in the positive direction, and the disc three drives the plurality of arc blocks to rotate in the positive direction, and the plurality of arc blocks respectively squeeze the plurality of fixed blocks to slide in the direction away from the disc three, and the plurality of fixed blocks respectively drive the plurality of cylinders to slide in the direction away from the disc three, and at the same time, the plurality of springs two are squeezed and contracted, and the plurality of cylinders respectively drive the plurality of support blocks to slide in the direction away from the disc three, and when the plurality of support blocks slide to a suitable position, the whole device is placed on the ground, and under the action of the plurality of support blocks and the fixed plate, the contact area between the whole device and the ground is increased, and the pressure is reduced, so that the jack body will not easily enter the ground with relatively soft soil when in use;

[0014] When the jack body is used up, the fixed assembly can be used to drive the disc three to rotate in the opposite direction, and the disc three drives the arc blocks to rotate in the opposite direction. At this time, the arc blocks no longer squeeze the fixed blocks, and under the action of the rebound force of the springs two, the fixed blocks slide toward the direction close to the disc three, and the fixed blocks respectively drive the cylinders to slide toward the direction close to the disc three, and the cylinders respectively drive the support blocks to slide toward the direction close to the disc three. Finally, the support blocks are all inserted into the fixed plate, which is convenient for people to carry the whole device.

[0015] In the above technical solution, further, the fixing assembly includes:

[0016] Two sliding bars, both of which are slidably installed in the sliding groove and are located on both sides of the jack body, the sides of the two sliding bars close to each other are plugged and matched with the jack body, and the sides of the two sliding bars away from each other are fixedly installed with a plurality of springs fixed to the inner wall of the sliding groove;

[0017] The second disk is rotatably mounted in the sliding groove and is located between the two sliding bars. The circumferential side wall of the second disk contacts the two sliding bars. The lower end of the second disk passes through the sliding groove and extends to the outside.

[0018] In the present technical solution, when it is necessary to fix disc one to the top of the jack body, first rotate disc two in the forward direction, disc two squeezes the two sliding bars to slide and move away from each other, and at the same time, a number of springs are squeezed and contracted. When the two sliding bars slide to the appropriate position, the jack body is inserted into disc one, and then the jack body is inserted into the sliding groove. When the jack body is inserted to the appropriate position, rotate disc two in the reverse direction, and then disc two no longer squeezes the two sliding bars. Under the action of the rebound force of the number of springs, the two sliding bars will slide and move closer to each other, and finally, the sides of the two sliding bars that are close to each other are inserted into the jack body, so that the position of disc one can be fixed. Disc one can increase the force area of ​​the lifted object. At the same time, the anti-slip rubber sheet is set to prevent the lifted object from being damaged. When disc one is not needed, it can be removed by the above operation.

[0019] In the above technical solution, further, the power assembly includes:

[0020] Disc three, the disc three is rotatably mounted in the power chamber, a plurality of arc blocks are fixedly mounted on the circumferential side wall of the disc three, the arc blocks are rotatably connected to the power chamber, the plurality of arc blocks are respectively located on one side of the plurality of fixed blocks, and the plurality of arc blocks are respectively in contact with one side of the plurality of fixed blocks;

[0021] A worm wheel is rotatably installed in the power cavity and located above the disc three. The worm wheel is coaxially connected to the disc three. A worm is rotatably installed in the power cavity and located on one side of the worm wheel. The worm is meshed with the worm wheel, and one end of the worm passes through the power cavity and extends to the outside.

[0022] In the technical scheme, when the jack body is used on a ground with relatively soft soil, the personnel first rotate the worm forward, the worm drives the worm wheel meshing with it to rotate forward, the worm wheel drives the disc three to rotate forward, the disc three drives a number of arc blocks to rotate forward, the several arc blocks squeeze a number of fixed blocks to slide in a direction away from the disc three, the several fixed blocks drive a number of cylinders to slide in a direction away from the disc three, and at the same time, a number of springs two are squeezed and contracted, and a number of cylinders drive a number of support blocks to slide in a direction away from the disc three. When the support blocks slide to a suitable position, the whole device is placed on the ground. Under the action of the support blocks and the fixed plates, the contact area between the whole device and the ground is increased, and the pressure is reduced, so that the jack body will not easily enter the soft ground when in use.

[0023] When the jack body is used, the personnel first rotates the worm in the opposite direction, and the worm drives the worm wheel meshing with it to rotate in the opposite direction, and the worm wheel drives the disc three to rotate in the opposite direction, and the disc three drives the several arc blocks to rotate in the opposite direction. At this time, the several arc blocks no longer squeeze the several fixed blocks. Under the action of the rebound force of the several springs two, the several fixed blocks slide in the direction close to the disc three, and the several fixed blocks respectively drive the several cylinders to slide in the direction close to the disc three, and the several cylinders respectively drive the several support blocks to slide in the direction close to the disc three. Finally, the several support blocks are inserted into the fixed plate, which is convenient for personnel to carry the whole device.

[0024] In the above technical solution, further, an operating disk is fixedly mounted on one end of the worm, and an operating rod is fixedly mounted on the lower end of the second disk.

[0025] In the technical solution, the operating disk is provided to facilitate personnel to rotate the worm, and the operating lever is provided to facilitate personnel to rotate the disc 2.

[0026] In the above technical solution, further, a non-slip rubber sheet is fixedly installed on the top of the first disk, and the second disk is oval.

[0027] In the technical solution, the anti-skid rubber sheet is provided to prevent the lifted object from being damaged, and ensure that the rotation of the second disc can squeeze the two sliding bars to slide and move away from each other.

[0028] In the above technical solution, further, the disk three and the plurality of arc-shaped blocks are an integrally formed structure.

[0029] In this technical solution, the stability of the disc three and the plurality of arc-shaped blocks during use is ensured.

[0030] The beneficial effects of the utility model are:

[0031] 1. The jack assembly is configured with a fixing assembly, and then the jack body is inserted into the disc one, and then the jack body is inserted into the sliding groove. When the jack body is inserted to a suitable position, the position of the disc one can be fixed by the fixing assembly. The disc one can increase the force-bearing area of ​​the lifted object so that the lifted object will not be damaged. When the disc one is not needed, the disc one can be removed by the above operation.

[0032] 2. When the jack body is used on a ground with relatively soft soil, the fixed assembly provided can drive the disc three to rotate in the forward direction, and the disc three drives the plurality of arc blocks to rotate in the forward direction, and the plurality of arc blocks respectively squeeze the plurality of fixed blocks to slide in the direction away from the disc three, and the plurality of fixed blocks respectively drive the plurality of cylinders to slide in the direction away from the disc three, and at the same time, the plurality of springs two are squeezed and contracted, and the plurality of cylinders respectively drive the plurality of support blocks to slide in the direction away from the disc three, and when the plurality of support blocks slide to suitable positions, the entire device is placed on the ground, and under the action of the plurality of support blocks and the fixed plates, the contact area between the entire device and the ground is increased, and the pressure is reduced, so that the jack body will not easily enter the ground with relatively soft soil when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 It is a schematic diagram of a cross-sectional structure of a disc of the utility model;

[0035] Figure 3 It is a schematic diagram of the partial explosion structure of the utility model;

[0036] Figure 4 It is a schematic diagram of the worm gear area structure of the utility model;

[0037] Figure 5 It is a schematic diagram of the fixed plate area structure of the utility model;

[0038] Figure 6 It is a schematic diagram of the three-zone structure of the disc of the utility model.

[0039] The symbols in the figure are:

[0040] 1. Jack body; 2. Disc 1; 3. Sliding groove; 4. Sliding bar; 5. Spring 1; 6. Fixed plate; 7. Power chamber; 8. Cylinder; 9. Fixed block; 10. Spring 2; 11. Support block; 12. Disc 2; 13. Operating lever; 14. Disc 3; 15. Arc block; 16. Worm gear; 17. Worm; 18. Operating disk; 19. Anti-slip rubber sheet. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0042] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words 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, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0045] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0046] See also Figure 1 - Figure 6 As shown, this embodiment provides a jack assembly, including:

[0047] A jack body 1, a disc 1 2 is arranged directly above the jack body 1, a sliding groove 3 is opened in the disc 1 2, the upper end of the jack body 1 passes through the disc 1 2 and extends into the sliding groove 3, and the jack body 1 is plugged and matched with the disc 1 2 and the sliding groove 3;

[0048] A fixing assembly, which is located in the sliding groove 3 and is used to fix the disc 1 2 on the jack body 1;

[0049] A fixing plate 6, which is fixedly installed at the bottom of the jack body 1, and a power cavity 7 is opened in the fixing plate 6. A plurality of cylinders 8 are slidably installed in the power cavity 7. A fixing block 9 is fixedly installed at one end of the plurality of cylinders 8 close to each other. The fixing block 9 is slidably connected with the power cavity 7. A spring 2 10 is sleeved on the cylinder 8. The two ends of the spring 2 10 are respectively fixed to one side of the corresponding fixing block 9 and the inner wall of the power cavity 7. The ends of the plurality of cylinders 8 far away from each other all penetrate the power cavity 7 and extend to the outside and are fixedly installed with a support block 11. The support block 11 is plugged and matched with the fixing plate 6;

[0050] A power assembly is located in the power cavity 7 and is used to drive a plurality of cylinders 8 to slide.

[0051] Among them, through the provided fixing assembly, the jack body 1 is then inserted into the disc 1 2, and then the jack body 1 is inserted into the sliding groove 3. When the jack body 1 is inserted to a suitable position, the position of the disc 1 2 can be fixed through the provided fixing assembly. The disc 1 2 can increase the force bearing area of ​​the object being lifted, so that the object being lifted will not be damaged. When the disc 1 2 is not needed, the disc 1 2 can be removed through the above operation;

[0052] When the jack body 1 is used on a ground with relatively soft soil, the fixed assembly provided can drive the disc three 14 to rotate forward, and the disc three 14 drives the plurality of arc blocks 15 to rotate forward, and the plurality of arc blocks 15 respectively squeeze the plurality of fixed blocks 9 to slide in a direction away from the disc three 14, and the plurality of fixed blocks 9 respectively drive the plurality of cylinders 8 to slide in a direction away from the disc three 14, and at the same time, the plurality of springs two 10 are squeezed and contracted, and the plurality of cylinders 8 respectively drive the plurality of support blocks 11 to slide in a direction away from the disc three 14, and when the plurality of support blocks 11 slide to a suitable position, the whole device is placed on the ground, and under the action of the plurality of support blocks 11 and the fixed plate 6, the contact area between the whole device and the ground is increased, and the pressure is reduced, so that the jack body 1 will not easily enter the ground with relatively soft soil when in use;

[0053] When the jack body 1 is used up, the fixed assembly can drive the disc three 14 to rotate in the opposite direction, and the disc three 14 drives the arc blocks 15 to rotate in the opposite direction. At this time, the arc blocks 15 no longer squeeze the fixed blocks 9. Under the action of the rebound force of the springs two 10, the fixed blocks 9 slide toward the direction close to the disc three 14, and the fixed blocks 9 respectively drive the cylinders 8 to slide toward the direction close to the disc three 14, and the cylinders 8 respectively drive the support blocks 11 to slide toward the direction close to the disc three 14. Finally, the support blocks 11 are all inserted into the fixed plate 6, which is convenient for people to carry the whole device.

[0054] In this embodiment, the fixing component includes:

[0055] Two sliding bars 4, both sliding bars 4 are slidably installed in the sliding groove 3 and are located on both sides of the jack body 1, the sides of the two sliding bars 4 close to each other are plugged and matched with the jack body 1, and the sides of the two sliding bars 4 away from each other are fixedly installed with a plurality of springs 5 ​​fixed to the inner wall of the sliding groove 3;

[0056] The second disk 12 is rotatably mounted in the sliding groove 3 and is located between the two sliding bars 4. The circumferential side wall of the second disk 12 contacts the two sliding bars 4. The lower end of the second disk 12 penetrates the sliding groove 3 and extends to the outside.

[0057] Among them, when it is necessary to fix the disc 2 to the top of the jack body 1, first rotate the disc 2 12 forward, and the disc 2 12 squeezes the two sliding bars 4 to slide and move away from each other, and at the same time, the springs 5 ​​are squeezed and contracted. When the two sliding bars 4 slide to the appropriate position, the jack body 1 is inserted into the disc 2, and then the jack body 1 is inserted into the sliding groove 3. When the jack body 1 is inserted to the appropriate position, rotate the disc 2 12 in the opposite direction, and then the disc 2 12 no longer squeezes the two sliding bars 4. Under the action of the rebound force of the springs 5, the two sliding bars 4 will slide and move closer to each other, and finally, the sides of the two sliding bars 4 that are close to each other are inserted into the jack body 1, so that the position of the disc 2 can be fixed. The disc 2 can increase the force-bearing area of ​​the object to be lifted. At the same time, the anti-slip rubber sheet 19 is set to prevent the lifted object from being damaged. When the disc 2 is not needed, the disc 2 can be removed by the above operation.

[0058] In this embodiment, the power assembly includes:

[0059] The disc three 14 is rotatably mounted in the power chamber 7. A plurality of arc blocks 15 are fixedly mounted on the circumferential side wall of the disc three 14. The arc blocks 15 are rotatably connected to the power chamber 7. The arc blocks 15 are respectively located on one side of the plurality of fixed blocks 9, and the plurality of arc blocks 15 are respectively in contact with one side of the plurality of fixed blocks 9.

[0060] A worm wheel 16 is rotatably mounted in the power chamber 7 and is located above the disc three 14. The worm wheel 16 is coaxially connected to the disc three 14. A worm 17 is rotatably mounted in the power chamber 7 and located on one side of the worm wheel 16. The worm 17 meshes with the worm wheel 16, and one end of the worm 17 penetrates the power chamber 7 and extends to the outside.

[0061] Among them, when the jack body 1 is used on a ground with relatively soft soil, the personnel first rotate the worm 17 forward, and the worm 17 drives the worm wheel 16 meshing therewith to rotate forward, and the worm wheel 16 drives the disk three 14 to rotate forward, and the disk three 14 drives the plurality of arc blocks 15 to rotate forward, and the plurality of arc blocks 15 respectively squeeze the plurality of fixed blocks 9 to slide in the direction away from the disk three 14, and the plurality of fixed blocks 9 respectively drive the plurality of cylinders 8 to slide in the direction away from the disk three 14, and at the same time, the plurality of springs 2 10 are squeezed and contracted, and the plurality of cylinders 8 respectively drive the plurality of support blocks 11 to slide in the direction away from the disk three 14, and when the plurality of support blocks 11 slide to a suitable position, the whole device is placed on the ground, and under the action of the plurality of support blocks 11 and the fixed plate 6, the contact area between the whole device and the ground is increased, and the pressure is reduced, so that the jack body 1 will not easily enter the ground with relatively soft soil when in use;

[0062] When the jack body 1 is used, the personnel first rotates the worm 17 in the opposite direction, and the worm 17 drives the worm wheel 16 meshing with it to rotate in the opposite direction, and the worm wheel 16 drives the disk three 14 to rotate in the opposite direction, and the disk three 14 drives the plurality of arc blocks 15 to rotate in the opposite direction. At this time, the plurality of arc blocks 15 no longer squeeze the plurality of fixed blocks 9. Under the action of the rebound force of the plurality of springs two 10, the plurality of fixed blocks 9 slide in the direction close to the disk three 14, and the plurality of fixed blocks 9 respectively drive the plurality of cylinders 8 to slide in the direction close to the disk three 14, and the plurality of cylinders 8 respectively drive the plurality of support blocks 11 to slide in the direction close to the disk three 14. Finally, the plurality of support blocks 11 are all inserted into the fixed plate 6, so that the personnel can carry the whole device conveniently.

[0063] This embodiment provides a jack assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0064] In this embodiment, an operating disk 18 is fixedly mounted on one end of the worm 17 , and an operating rod 13 is fixedly mounted on the lower end of the disk 12 .

[0065] Among them, the operating disk 18 is provided to facilitate personnel to rotate the worm 17, and the operating rod 13 is provided to facilitate personnel to rotate the disk 2 12.

[0066] This embodiment provides a jack assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0067] In this embodiment, a non-slip rubber sheet 19 is fixedly mounted on the top of the disk 1 2 , and the disk 2 12 is oval in shape.

[0068] The anti-skid rubber sheet 19 is provided to prevent the lifted object from being damaged, and ensure that the rotation of the second disc 12 can squeeze the two sliding bars 4 to slide and move away from each other.

[0069] This embodiment provides a jack assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0070] In this embodiment, the disk 3 14 and the plurality of arc-shaped blocks 15 are an integrally formed structure.

[0071] The stability of the disk 3 14 and the plurality of arc-shaped blocks 15 during use is ensured.

[0072] Working principle: when it is necessary to fix the disc 12 to the top of the jack body 1, first rotate the operating rod 13 forward and drive the disc 2 12 to rotate forward, the disc 2 12 squeezes the two sliding bars 4 to slide and move away from each other, and at the same time, the springs 15 are squeezed and contracted. When the two sliding bars 4 slide to the appropriate position, the jack body 1 is inserted into the disc 12, and then the jack body 1 is inserted into the sliding groove 3. When the jack body 1 is inserted to the appropriate position, the operating rod 13 is rotated in the opposite direction and drives the disc 2 12 to rotate in the opposite direction. Then the disc 2 12 no longer squeezes the two sliding bars 4. Under the action of the rebound force of the springs 15, the two sliding bars 4 will slide and move closer to each other. Finally, the sides of the two sliding bars 4 that are close to each other are inserted into the jack body 1, so that the position of the disc 12 can be fixed. The disc 12 can increase the force-bearing area of ​​the object to be lifted. At the same time, the anti-slip rubber sheet 19 is set to prevent the lifted object from being damaged. When the disc 12 is not needed, the disc 12 can be removed by the above operation.

[0073] When the jack body 1 is used on a ground with relatively soft soil, the operator first rotates the operating disc 18 in the forward direction and drives the worm 17 to rotate forward, the worm 17 drives the worm wheel 16 meshing therewith to rotate forward, the worm wheel 16 drives the disc three 14 to rotate forward, the disc three 14 drives the plurality of arc blocks 15 to rotate forward, the plurality of arc blocks 15 respectively squeeze the plurality of fixed blocks 9 to slide in the direction away from the disc three 14, the plurality of fixed blocks 9 respectively drive the plurality of cylinders 8 to slide in the direction away from the disc three 14, and at the same time, the plurality of springs 2 10 are squeezed and contracted, the plurality of cylinders 8 respectively drive the plurality of support blocks 11 to slide in the direction away from the disc three 14, when the plurality of support blocks 11 slide to a suitable position, the whole device is placed on the ground, under the action of the plurality of support blocks 11 and the fixed plate 6, the contact area between the whole device and the ground is increased, and the pressure is reduced, so that the jack body 1 will not easily enter the ground with relatively soft soil when in use;

[0074] When the jack body 1 is used, the operator first rotates the operating disk 18 in the opposite direction and drives the worm 17 to rotate in the opposite direction. The worm 17 drives the worm wheel 16 meshing with it to rotate in the opposite direction. The worm wheel 16 drives the disk three 14 to rotate in the opposite direction. The disk three 14 drives the plurality of arc blocks 15 to rotate in the opposite direction. At this time, the plurality of arc blocks 15 no longer squeeze the plurality of fixed blocks 9. Under the action of the rebound force of the plurality of springs two 10, the plurality of fixed blocks 9 slide in the direction close to the disk three 14. The plurality of fixed blocks 9 respectively drive the plurality of cylinders 8 to slide in the direction close to the disk three 14. The plurality of cylinders 8 respectively drive the plurality of support blocks 11 to slide in the direction close to the disk three 14. Finally, the plurality of support blocks 11 are all inserted into the fixed plate 6, which is convenient for the operator to carry the entire device.

[0075] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A jack assembly, characterized in that: include: A jack body (1), wherein a disc one (2) is arranged directly above the jack body (1), a sliding groove (3) is provided in the disc one (2), the upper end of the jack body (1) passes through the disc one (2) and extends into the sliding groove (3), and the jack body (1) is plugged and matched with the disc one (2) and the sliding groove (3); A fixing assembly, the fixing assembly being located in the sliding groove (3) and being used to fix the disc 1 (2) on the jack body (1); A fixing plate (6), wherein the fixing plate (6) is fixedly mounted on the bottom of the jack body (1), a power cavity (7) is provided in the fixing plate (6), a plurality of cylinders (8) are slidably mounted in the power cavity (7), a fixing block (9) is fixedly mounted on the ends of the plurality of cylinders (8) close to each other, the fixing block (9) is slidably connected to the power cavity (7), a spring (10) is sleeved on the cylinder (8), the two ends of the spring (10) are respectively fixed to one side of the corresponding fixing block (9) and the inner wall of the power cavity (7), the ends of the plurality of cylinders (8) away from each other penetrate the power cavity (7) and extend to the outside and are fixedly mounted with a support block (11), the support block (11) is plug-fitted to the fixing plate (6); A power assembly is located in the power cavity (7) and is used to drive the plurality of cylinders (8) to slide.

2. A jack assembly according to claim 1, characterized in that: The fixing assembly comprises: Two sliding bars (4), both of which are slidably mounted in the sliding groove (3) and are located on both sides of the jack body (1), the sides of the two sliding bars (4) close to each other are plugged into the jack body (1), and the sides of the two sliding bars (4) away from each other are fixedly mounted with a plurality of springs (5) fixed to the inner wall of the sliding groove (3); The second disk (12) is rotatably mounted in the sliding groove (3) and is located between the two sliding bars (4). The circumferential side wall of the second disk (12) is in contact with the two sliding bars (4). The lower end of the second disk (12) passes through the sliding groove (3) and extends to the outside.

3. A jack assembly according to claim 2, characterized in that: The power assembly comprises: A disc three (14), the disc three (14) being rotatably mounted in the power chamber (7), a plurality of arc blocks (15) being fixedly mounted on the circumferential side wall of the disc three (14), the arc blocks (15) being rotatably connected to the power chamber (7), the plurality of arc blocks (15) being respectively located on one side of the plurality of fixed blocks (9), and the plurality of arc blocks (15) being respectively in contact with one side of the plurality of fixed blocks (9); A worm wheel (16), the worm wheel (16) is rotatably mounted in the power chamber (7) and is located above the disc three (14), the worm wheel (16) is coaxially connected to the disc three (14), a worm (17) is rotatably mounted in the power chamber (7) and located on one side of the worm wheel (16), the worm (17) is meshed with the worm wheel (16), and one end of the worm (17) passes through the power chamber (7) and extends to the outside.

4. A jack assembly according to claim 3, characterized in that: An operating disc (18) is fixedly mounted on one end of the worm (17), and an operating rod (13) is fixedly mounted on the lower end of the second disc (12).

5. A jack assembly according to claim 1, characterized in that: An anti-slip rubber sheet (19) is fixedly mounted on the top of the disc 1 (2).

6. A jack assembly according to claim 2, characterized in that: The second disc (12) is oval in shape.

7. A jack assembly according to claim 3, characterized in that: The disc three (14) and the plurality of arc-shaped blocks (15) are an integrally formed structure.

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