CN114261917A - Mechanical jack - Google Patents
Mechanical jack Download PDFInfo
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- CN114261917A CN114261917A CN202111455457.8A CN202111455457A CN114261917A CN 114261917 A CN114261917 A CN 114261917A CN 202111455457 A CN202111455457 A CN 202111455457A CN 114261917 A CN114261917 A CN 114261917A
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- top plate
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- bottom plate
- fixing sleeves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention provides a mechanical jack, and relates to the technical field of jacks. Comprises a top plate and a bottom plate which are oppositely arranged; a main supporting component is movably connected between the bottom plate and the top plate; the main supporting component comprises a lifting shaft and two main fixing sleeves; the two main fixing sleeves are respectively connected with the two opposite ends of the top plate and the bottom plate through main supporting arms, and the two ends of the main supporting arms are respectively connected with the main fixing sleeves and the top plate or the bottom plate in a rotating manner; an auxiliary supporting component is movably connected between the top plate and the bottom plate; through the setting of above-mentioned device, make the integrated device have dual supporting effect, and then reach the effect that improves the support ability of device for the integrated device has higher stable line when using, just also avoids the condition of meeting accident, and when promoting the supporting role, it uses more convenient, just also makes the potential safety hazard greatly reduced in the use, makes the practicality of integrated device obtain very big promotion from this.
Description
Technical Field
The invention relates to the technical field of jacks, in particular to a mechanical jack.
Background
The scissor jack is also called a bracket jack, is light and fast, is a vehicle-mounted product in various domestic automobile factories, has different principles, and consists of an upper support rod and a lower support rod which are made of metal plates; the cross section of the upper supporting rod and the cross section of the lower supporting rod at the tooth part and the part near the tooth part are rectangles with one side opened, and metal plates at two sides of the opening are bent inwards; the teeth on the upper support rod and the lower support rod are made of metal plates with bent openings at two sides, and the tooth width is larger than the thickness of the metal plates.
Most of existing scissor jacks are only supported through two symmetrical supports, and in the process of rising, the scissor jacks are not stable enough when being used, so that accidents are easy to happen, people cannot use the scissor jacks conveniently, meanwhile, great potential safety hazards exist, and therefore the practicability of the whole scissor jack device is poor.
In order to solve the problems, how to design a mechanical jack makes people urgently need to solve the problems.
Disclosure of Invention
The present invention is directed to a mechanical jack, which solves the above problems in the prior art.
The embodiment of the invention is realized by the following steps:
the embodiment of the application provides a mechanical jack, which comprises a top plate and a bottom plate which are oppositely arranged; a main supporting component is movably connected between the bottom plate and the top plate;
the main support assembly comprises a lifting shaft and two main fixing sleeves, the lifting shaft penetrates through the two main fixing sleeves, and the lifting shaft is in threaded fit with one main fixing sleeve and is in rotary connection with the other main fixing sleeve; the two main fixing sleeves are respectively connected with the two opposite ends of the top plate and the bottom plate through main supporting arms, and the two ends of the main supporting arms are respectively connected with the main fixing sleeves and the top plate or the bottom plate in a rotating manner;
an auxiliary supporting component is movably connected between the top plate and the bottom plate; and the auxiliary supporting component is movably connected with the main supporting component and can support the main supporting component.
In some embodiments of the present invention, the auxiliary supporting assembly includes a driven rotating shaft and two auxiliary fixing sleeves; the driven rotating shaft penetrates through the two auxiliary fixing sleeves, is in threaded fit with one auxiliary fixing sleeve and is in rotating connection with the other auxiliary fixing sleeve; the two auxiliary fixing sleeves are respectively connected with the two opposite ends of the top plate and the bottom plate through auxiliary supporting arms, and the two ends of the plurality of auxiliary supporting arms are respectively rotatably connected with the auxiliary fixing sleeves and the top plate or the bottom plate;
the driven rotating shaft is connected with the lifting shaft through a connecting assembly.
In some embodiments of the invention, the connecting assembly comprises a worm wheel and a worm screw which are adapted to each other;
the worm is sleeved with the driven rotating shaft and can drive the driven rotating shaft to rotate and move along the axis direction of the driven rotating shaft; the worm wheel is sleeved with the lifting shaft and meshed with the worm.
In some embodiments of the invention, the worm gear and worm are engaged at all times as the primary and secondary support assemblies telescope between the top and bottom plates as described above.
In some embodiments of the present invention, the two main fixing sleeves are both in threaded engagement with the lifting shaft, and when the lifting shaft rotates, the two main fixing sleeves move in opposite directions.
In some embodiments of the present invention, the two auxiliary fixing sleeves are both in threaded engagement with the driven rotating shaft, and when the driven rotating shaft rotates, the two auxiliary fixing sleeves move in opposite directions.
In some embodiments of the present invention, the main supporting arm or the auxiliary supporting arm is rotatably connected with the top plate, the bottom plate and the main fixing sleeve or the auxiliary fixing sleeve through a pin lug and a pin shaft.
In some embodiments of the invention, the plurality of primary and secondary support arms are located on opposite sides of the primary and secondary hubs, respectively.
In some embodiments of the present invention, a rotating shaft handle is disposed at an end of the lifting shaft extending out of one of the main fixing sleeves.
In some embodiments of the present invention, the ends of the top plate and the bottom plate away from the lifting shaft are respectively provided with an elastic contact layer and an anti-slip layer.
Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects: the distance between the top plate and the bottom plate is reduced to the minimum or can be reduced to the distance between the supporting point of the weight and the ground, the bottom plate is abutted against the ground, the top plate can be abutted against the supporting point of the weight before use, and the height of the top plate can also be smaller than the supporting point of the weight; in the using process, namely, the lifting shaft is rotated, so that one main fixing sleeve moves back and forth along the outer wall of the lifting shaft, the angle between the main supporting arm and the top plate or the bottom plate is changed, and the effect of changing the distance between the top plate and the bottom plate is finally achieved, so that a heavy object is supported, the distance between the heavy object and the ground is larger than the initial state, and the subsequent operation is facilitated; when the main supporting component supports the heavy object, the auxiliary supporting component can also play a supporting role, so that a double supporting effect is achieved, and an effect of improving the supporting capacity of the device is achieved, so that the whole device has higher stability in use, accidents are avoided, the use is more convenient and faster while the supporting effect is improved, the potential safety hazard in the use process is greatly reduced, and the practicability of the whole device is greatly improved;
through connection and transmission of turbine and worm, make the lift axle when taking place to rotate, make it drive the driven spindle and rotate to make supplementary supporting component accomplish the effect the same with main supporting component, also change the angle of assisting the support arm promptly, reach the purpose of supporting the roof, finally reach the purpose of supporting the roof with main supporting component jointly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic illustration of the connection between one of the primary and secondary support assemblies and the top and bottom plates in an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of one of the end faces of the top plate or the bottom plate in the embodiment of the present invention;
FIG. 3 is a schematic diagram of the connection between the lifting shaft and the driven rotating shaft according to the embodiment of the present invention;
FIG. 4 is a schematic view of the connection of one of the main support assembly and the auxiliary support assembly according to the embodiment of the present invention.
Icon: 1. a top plate; 2. a base plate; 3. a main fixing sleeve; 4. a main support arm; 5. a lifting shaft; 6. auxiliary fixing sleeves; 7. a driven rotating shaft; 8. an auxiliary support arm; 9. a turbine; 10. a worm; 11. a pin lug; 12. a pin shaft; 13. a spindle handle; 14. a contact layer; 15. and an anti-slip layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of description and simplification of the description, and do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" represents at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
Referring to fig. 1 to 4, fig. 1 is a schematic view illustrating a connection between a main support assembly and an auxiliary support assembly and a top plate 1 and a bottom plate 2 according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of one end surface of the top plate 1 or the bottom plate 2 according to the embodiment of the present invention;
fig. 3 is a schematic view illustrating the connection between the lifting shaft 5 and the driven rotating shaft 7 according to the embodiment of the present invention;
FIG. 4 is a schematic view of the connection of one of the main support assembly and the auxiliary support assembly according to the embodiment of the present invention.
The embodiment of the application provides a mechanical jack, which comprises a top plate 1 and a bottom plate 2 which are oppositely arranged; a main supporting component is movably connected between the bottom plate 2 and the top plate 1; as shown in fig. 1, the top plate 1 and the bottom plate 2 are sheet-like structures, and their main functions are to support the object to be supported and the ground, and therefore, the areas of the two should be set as appropriate according to the actual situation, so that the device can have enough contact area with the ground or the object when in use, thereby achieving a good manufacturing function.
It should be noted that the top plate 1 and the bottom plate 2 are oppositely disposed, and as a preferred embodiment, two end faces of the top plate 1 and the bottom plate 2 should be parallel to each other, and the top plate 1 and the bottom plate 2 should also be parallel to each other. When the material is selected, the material has enough structural strength, so that the purpose of supporting heavy objects can be achieved, the situation that the heavy objects are broken or damaged when the heavy objects are used is also avoided, and the use safety of the heavy objects and the heavy objects is improved.
The main supporting assembly is used for pulling the distance between the top plate 1 and the bottom plate 2, that is, when the main supporting assembly is used, the top plate 1 is supported by the main supporting assembly, the bottom plate 2 is in contact with the ground, the top plate 1 is abutted against a heavy object to be supported, and the main supporting assembly and the top plate 1 are manufactured, and the distance between the top plate 1 and the bottom plate 2 is changed, so that the purpose of supporting the heavy object is achieved.
The main supporting assembly includes a lifting shaft 5 and two main fixing sleeves 3, as shown in fig. 1 and 4, the lifting shaft 5 penetrates through the two main fixing sleeves 3, that is, the two main fixing sleeves 3 are in a sleeved relationship, and one of the main fixing sleeves 3 can move back and forth along the axis direction of the lifting shaft 5, and the main fixing sleeve 3 and the lifting shaft 5 can be connected by a screw thread or other structures, in this embodiment, a screw thread connection is adopted, that is, the lifting shaft 5 is in screw thread fit with one of the main fixing sleeves 3 and is rotatably connected with the other main fixing sleeve 3, and the main fixing sleeve 3 rotatably connected with the main fixing sleeve 3 can rotate along the circumferential direction of the lifting shaft 5, but cannot move back and forth on the lifting shaft 5, and the connection structure can be implemented by the following structures: that is, at the joint of the two, the outer wall of the lifting shaft 5 or the inner wall of the main fixing sleeve 3 is provided with an annular limiting ring, the other is provided with an annular limiting groove, and the limiting ring is rotatably connected with the limiting groove, while the limiting ring is arranged to extend along the circumferential direction of the lifting shaft 5 or the main fixing sleeve 3, so that the rotary connection of the two can be realized, and the main fixing sleeve 3 cannot move along the axial direction of the lifting shaft 5.
The two main fixing sleeves 3 are respectively connected with the two opposite ends of the top plate 1 and the bottom plate 2 through main supporting arms 4, and the two ends of the main supporting arms 4 are respectively connected with the main fixing sleeves 3 and the top plate 1 or the bottom plate 2 in a rotating manner; as shown in fig. 1, since two main fixing sleeves 3 are needed in the present embodiment, both the two main fixing sleeves 3 and the top plate 1 and the bottom plate 2 need to be connected through the main supporting arm 4, therefore, 4 main supporting arms 4 are used in the present embodiment, that is, any one of the main fixing sleeves 3 is connected with the top plate 1 and the bottom plate 2 through one main supporting arm 4, and the connection manner is as shown in fig. 1 and 4, and it is enough to rotate.
As shown in fig. 1, one of the main fixing sleeves 3 screwed with the lifting shaft 5 can move back and forth along the axial direction of the lifting shaft 5 by the rotation of the lifting shaft 5, and in the process of moving back and forth of the main fixing sleeves 3, the angles between the 4 main supporting arms 4 and the top plate 1 or the bottom plate 2 are changed, so that the 4 main supporting arms 4 are changed between the horizontal state and the vertical state, the purpose of changing the distance between the top plate 1 and the bottom plate 2 can be achieved, and the purpose of lifting the heavy object is finally achieved.
And an auxiliary supporting component is movably connected between the top plate 1 and the bottom plate 2, is movably connected with the main supporting component and can support the main supporting component. This supplementary supporting component's effect is when the main tributary supporting component makes the heavy object promptly, can reach bigger support requirement, also can support heavier article promptly, thereby make on original basis, the device's support can promote by a wide margin, to the device itself, when supporting a certain heavy object, it has stronger support ability, and then when using, higher stable going has, avoid the accident situation, and make things convenient for people's use, make the potential safety hazard greatly reduced in the use, make the practicality of whole device obtain very big promotion from this.
When the device is used, namely the distance between the top plate 1 and the bottom plate 2 is reduced to the minimum or between the supporting point of a heavy object and the ground, the bottom plate 2 is abutted against the ground, the top plate 1 can be abutted against the supporting point of the heavy object before use, or the height of the top plate 1 is smaller than the supporting point of the heavy object; in the using process, namely, the lifting shaft 5 is rotated, so that one main fixing sleeve 3 moves back and forth along the outer wall of the lifting shaft 5, the angle between the main supporting arm 4 and the top plate 1 or the bottom plate 2 is changed, and the effect of changing the distance between the top plate 1 and the bottom plate 2 is finally achieved, so that a heavy object is supported, the distance between the heavy object and the ground is larger than the initial state, and the subsequent operation is facilitated; when the main supporting component supports the heavy object, the auxiliary supporting component also plays a role in supporting, so that a dual supporting effect is achieved, the effect of improving the supporting capacity of the device is achieved, the integral device has higher stability when in use, the accident situation is avoided, the supporting effect is improved, the integral device is more convenient to use, the potential safety hazard in the using process is greatly reduced, and the practicability of the integral device is greatly improved.
Example 2
In this embodiment, the auxiliary support assembly comprises a driven shaft 7 and two auxiliary fixing sleeves 6; the driven rotating shaft 7 penetrates through the two auxiliary fixing sleeves 6, and the driven rotating shaft 7 is in threaded fit with one auxiliary fixing sleeve 6 and is in rotating connection with the other auxiliary fixing sleeve 6; the two auxiliary fixing sleeves 6 are respectively connected with the two opposite ends of the top plate 1 and the bottom plate 2 through auxiliary supporting arms 8, and the two ends of the plurality of auxiliary supporting arms 8 are respectively rotatably connected with the auxiliary fixing sleeves 6 and the top plate 1 or the bottom plate 2;
the driven rotating shaft 7 is connected with the lifting shaft 5 through a connecting assembly. As shown in fig. 1, in the present embodiment, the structure of the auxiliary support assembly is the same as that of the main support assembly, and of course, other support structures may be adopted.
As a preferred embodiment, the planes of the main support assembly and the auxiliary support assembly are perpendicular to each other, that is, when the main support assembly and the auxiliary support are present, one end surface of the top plate 1 or the bottom plate 2 needs to be connected with 2 main support arms 4 and 2 auxiliary support arms 8, the top plate 1 and the bottom plate 2 are rotatably connected with the main support assembly and the auxiliary support arms 8 and 2 main support arms 4 are uniformly distributed along the circumferential direction of the top plate 1 or the top plate 1, and the angle between a single main support arm 4 and an adjacent auxiliary support arm 8 is 90 degrees; thereby be favorable to the supporting effect to roof 1, make main support arm 4 and auxiliary support arm 8 atress even to reach and have better supporting effect to the heavy object.
And coupling assembling's effect, be when the angle between main support arm 4 and bottom plate 2 or roof 1 changes, make lift shaft 5 drive driven spindle 7 all the time and rotate to make the angle between auxiliary support arm 8 and roof 1 and the bottom plate 2 change, thereby make auxiliary support assembly reach the effect of supporting and playing roof 1.
Example 3
In the present embodiment, the above-mentioned connecting assembly includes a worm wheel 9 and a worm 10 which are adapted to each other; as shown in fig. 1 and 3.
The worm 10 is sleeved with the driven rotating shaft 7, and the worm 10 can drive the driven rotating shaft 7 to rotate and can move along the axial direction of the driven rotating shaft 7; the worm wheel 9 is sleeved with the lifting shaft 5, and the worm wheel 9 is meshed with the worm 10. Referring to fig. 1 and 3, when the lifting shaft 5 rotates, the lifting shaft drives the driven rotating shaft 7 to rotate through the connection and transmission of the worm wheel 9 and the worm 10, so that the auxiliary supporting assembly performs the same function as the main supporting assembly, that is, the angle of the auxiliary supporting arm 8 is changed, the purpose of supporting the top plate 1 is achieved, and finally the purpose of supporting the top plate 1 together with the main supporting assembly is achieved.
Example 4
In the present embodiment, the worm wheel 9 and the worm 10 are always engaged as the main support assembly and the auxiliary support assembly are extended and retracted between the top plate 1 and the bottom plate 2.
This is achieved by calculating the transmission ratio between the worm wheel 9 and the worm 10, the transmission ratio between the lifting shaft 5 and the main fixing sleeve 3, and the transmission ratio between the driven rotating shaft 7 and the auxiliary fixing sleeve 6, so that the worm wheel 9 and the worm 10 are always engaged during the process of the common ascending or descending of the driven rotating shaft 7 and the lifting shaft 5, and the lifting shaft 5 can always drive the driven rotating shaft 7 to rotate.
It should be noted that, when the auxiliary supporting component supports the top plate 1, according to the stress analysis of the main supporting component or the auxiliary supporting component, the gravity of the weight is mainly applied to the main supporting arm 4 and the auxiliary supporting arm 8 and the joints of the main supporting arm 4 and the auxiliary supporting arm 8 with the main fixing sleeve 3 and the auxiliary fixing sleeve 6, so that the gravity is not applied between the lifting shaft 5 and the driven rotating shaft 7, and thus the worm wheel 9 and the worm 10 can be in good contact, that is, can be better engaged.
Example 5
In the present embodiment, the two main fixing sleeves 3 are both screw-engaged with the lifting shaft 5, and when the lifting shaft 5 rotates, the two main fixing sleeves 3 move in opposite directions.
In the present embodiment, the two auxiliary fixing sleeves 6 are both screw-engaged with the driven rotating shaft 7, and when the driven rotating shaft 7 rotates, the directions of movement of the two auxiliary fixing sleeves 6 are opposite.
As shown in fig. 4, that is to say, two main fixing sleeves 3 and two auxiliary fixing sleeves 6 are both in threaded fit with the lifting shaft 5 and the driven shaft 7, when the lifting shaft 5 and the driven shaft 7 rotate, the two main fixing sleeves 3 and the two auxiliary fixing sleeves 6 move in opposite directions and away from each other, so that the ascending or descending efficiency of the top plate 1 is improved when the top plate is used, and the use efficiency is improved.
Example 6
In the present embodiment, the main support arm 4 or the auxiliary support arm 8 is rotatably connected with the top plate 1, the bottom plate 2 and the main fixing sleeve 3 or the auxiliary fixing sleeve 6 through a pin ear 11 and a pin shaft 12.
Example 7
In the present embodiment, the above-mentioned multiple main support arms 4 and multiple auxiliary support arms 8 are located on opposite sides of the main pouch 3 and the auxiliary pouch 6, respectively.
Preferably, the connection means shown in fig. 4 is adopted, so that the connection between the main support arm 4 and the main fixing sleeve 3 and the connection between the auxiliary support arm 8 and the auxiliary fixing sleeve 6 are more stable and can bear higher gravity.
Example 8
In this embodiment, a shaft handle 13 is provided at one end of the lifting shaft 5 extending out of one of the main fixing sleeves 3.
The rotation of the lifting shaft 5 can be facilitated by the shaft handle 13, i.e. when in use, and of course, other power can be used for auxiliary rotation, such as a motor and the like.
Example 9
In this embodiment, the top plate 1 and the bottom plate 2 are respectively provided with an elastic contact layer 14 and an anti-slip layer 15 at ends thereof away from the lifting shaft 5.
The working principle of the mechanical jack is as follows: when the device is used, namely the distance between the top plate 1 and the bottom plate 2 is reduced to the minimum or between the supporting point of a heavy object and the ground, the bottom plate 2 is abutted against the ground, the top plate 1 can be abutted against the supporting point of the heavy object before use, or the height of the top plate 1 is smaller than the supporting point of the heavy object; in the using process, namely, the lifting shaft 5 is rotated, so that one main fixing sleeve 3 moves back and forth along the outer wall of the lifting shaft 5, the angle between the main supporting arm 4 and the top plate 1 or the bottom plate 2 is changed, and the effect of changing the distance between the top plate 1 and the bottom plate 2 is finally achieved, so that a heavy object is supported, the distance between the heavy object and the ground is larger than the initial state, and the subsequent operation is facilitated; when the main supporting component supports the heavy object, the auxiliary supporting component can also play a supporting role, so that the double supporting effect is achieved, and the effect of improving the supporting capability of the device is further achieved.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A mechanical jack is characterized by comprising a top plate and a bottom plate which are oppositely arranged; a main supporting component is movably connected between the bottom plate and the top plate;
the main support assembly comprises a lifting shaft and two main fixing sleeves, the lifting shaft penetrates through the two main fixing sleeves, and the lifting shaft is in threaded fit with one of the main fixing sleeves and is in rotary connection with the other main fixing sleeve; the two main fixing sleeves are respectively connected with two opposite ends of the top plate and the bottom plate through main supporting arms, and two ends of the main supporting arms are respectively rotatably connected with the main fixing sleeves and the top plate or the bottom plate;
an auxiliary supporting component is movably connected between the top plate and the bottom plate; and the auxiliary supporting component is movably connected with the main supporting component and can support the main supporting component.
2. The mechanical jack of claim 1, wherein the auxiliary support assembly includes a driven shaft and two auxiliary securing sleeves; the driven rotating shaft penetrates through the two auxiliary fixing sleeves, is in threaded fit with one auxiliary fixing sleeve and is in rotating connection with the other auxiliary fixing sleeve; the two auxiliary fixing sleeves are respectively connected with two opposite ends of the top plate and the bottom plate through auxiliary supporting arms, and two ends of the plurality of auxiliary supporting arms are respectively rotatably connected with the auxiliary fixing sleeves and the top plate or the bottom plate;
the driven rotating shaft and the lifting shaft are connected through a connecting assembly.
3. A jack as claimed in claim 2 wherein said connecting assembly includes a mating worm gear and worm;
the worm is sleeved with the driven rotating shaft and can drive the driven rotating shaft to rotate and move along the axis direction of the driven rotating shaft; the worm wheel is sleeved with the lifting shaft and meshed with the worm.
4. A jack as claimed in claim 3 wherein said worm gear and said worm are in constant mesh as said main and auxiliary support assemblies telescope between said top and bottom plates.
5. The mechanical jack of claim 1, wherein both of said primary retention sockets are threadably engaged with said lift shaft and move in opposite directions when said lift shaft is rotated.
6. A jack as claimed in claim 2 or 3, wherein both of said secondary sleeves are threadedly engaged with said driven shaft and move in opposite directions when said driven shaft is rotated.
7. The mechanical jack of claim 2, wherein the main or auxiliary support arm is pivotally connected to the top plate, the bottom plate and the main or auxiliary housing by a pin and a pin.
8. A jack as claimed in claim 2 wherein said primary support arms and said secondary support arms are located on opposite sides of said primary and secondary harnesses, respectively.
9. The mechanical jack of claim 1, wherein a pivot handle is provided at an end of the lifting shaft extending beyond one of the primary securing pockets.
10. The mechanical jack of claim 1, wherein the ends of the top plate and the bottom plate away from the lifting shaft are respectively provided with an elastic contact layer and an anti-slip layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111455457.8A CN114261917B (en) | 2021-12-01 | 2021-12-01 | Mechanical jack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111455457.8A CN114261917B (en) | 2021-12-01 | 2021-12-01 | Mechanical jack |
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| Publication Number | Publication Date |
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| CN114261917A true CN114261917A (en) | 2022-04-01 |
| CN114261917B CN114261917B (en) | 2023-08-22 |
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| US20090200527A1 (en) * | 2005-11-28 | 2009-08-13 | Colin Christie | Scissor jack |
| CN102076597A (en) * | 2008-07-15 | 2011-05-25 | 奥迪股份公司 | Telescopically collapsible scissor car jack |
| EP2330045A2 (en) * | 2009-12-07 | 2011-06-08 | Frank Hessemer | Container with height-adjustable base |
| CN106198224A (en) * | 2016-08-31 | 2016-12-07 | 姜会增 | Load load maintainer |
| CN108408630A (en) * | 2018-06-09 | 2018-08-17 | 黄河科技学院 | Automobile specified assembles jack |
| CN109987537A (en) * | 2019-03-24 | 2019-07-09 | 宁波天胜传动件有限公司 | A kind of scissor-like jack and its application method of safety and firmness |
| CN110356993A (en) * | 2019-08-17 | 2019-10-22 | 常熟白莲光电科技有限公司 | A kind of jack that vulnerable part uses |
| CN212334473U (en) * | 2020-06-01 | 2021-01-12 | 湖南定园汽车配件制造有限公司 | Jack device for automobile |
| CN112249954A (en) * | 2020-10-16 | 2021-01-22 | 南京静燕家居有限公司 | High and new energy automobile that facilitates use of stability is with cutting formula jack |
| CN214114748U (en) * | 2021-01-08 | 2021-09-03 | 无锡商业职业技术学院 | Auto repair lifting device |
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| CN114261917B (en) | 2023-08-22 |
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