CN212954080U

CN212954080U - Combined scissor jack

Info

Publication number: CN212954080U
Application number: CN202021475665.5U
Authority: CN
Inventors: 张良; 李欣国; 张岩; 张成林; 郭楠
Original assignee: Chengde Xiangyi Machinery Co ltd
Current assignee: Chengde Xiangyi Machinery Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-04-13
Anticipated expiration: 2030-07-23

Abstract

The utility model provides a modular formula jack of cutting belongs to jack technical field, the on-line screen storage device comprises a base, the top, the upper arm, the underarm, adjust pole and sleeve, the top is located different or same plumb line with the base, the one end of two upper arms articulates on the top, the other end is the free end, two upper arm length vary or equal, the one end of two underarms articulates respectively on the base, the other end is articulated with the free end of two upper arms respectively, the length of two underarms varies or equals, but two upper arms and two underarms intercombination use, it passes the articulated department of an upper arm and underarm to adjust the pole, the sleeve passes the articulated department of another upper arm and underarm, adjust pole and sleeve spiro union, the height of top is adjusted with the help of adjusting. The utility model provides a pair of modular formula jack of cutting has the power ability even transmission that acts on the jack, and whole atress is even, and is not fragile, and convenient operation's technological effect is fallen in the jack jacking.

Description

Combined scissor jack

Technical Field

The utility model belongs to the technical field of the jack, more specifically say, relate to a modular formula jack of cutting.

Background

The scissor jack is a kind of jack, and is called a scissor jack because the scissor jack is similar to a scissor in structure. The scissor jack is a hoisting device, is mainly used for hoisting, supporting and other operations of a small automobile, and is very popular among drivers of automobiles due to the characteristics of lightness and quickness. Generally, a scissor jack generally comprises a top head, a base, two upper brackets and two lower brackets, wherein one ends of the two upper brackets are mounted on the top head, one ends of the two lower brackets are mounted on the base, the other ends of the two upper brackets and the other ends of the two lower brackets are hinged to form a frame structure, a lead screw is arranged at the joint of the upper brackets and the lower brackets, and the lifting action of the top head can be achieved by screwing the lead screw, so that a vehicle can be pushed to lift. In the jack in the prior art, the top and the base are positioned on the same plumb line, the joint of the lower bracket and the base bears higher pressure in the bearing process, and the phenomenon of uneven stress is easy to exist, so that the lower bracket is damaged and hidden danger is generated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modular formula jack of cutting aims at solving and cuts the technical problem that there is the atress inhomogeneous in the use of formula jack.

In order to achieve the above object, the utility model adopts the following technical scheme: the combined scissor jack comprises a base, a top head, an upper arm, a lower arm, an adjusting rod and a sleeve, wherein the top head is positioned above the base, and the top head and the base are positioned on different or the same plumb lines; the two upper arms are respectively hinged to the top, one ends of the two upper arms are hinged to the top, the other ends of the two upper arms are free ends, and the lengths of the two upper arms are different or equal; the two lower arms are respectively hinged to the base at one end and hinged to free ends of the two upper arms at the other end, the two lower arms are different in length or equal in length, the two upper arms and the two lower arms form a parallelogram or an equilateral quadrilateral in a surrounding mode, and the two upper arms and the two lower arms can be mutually combined for use; the adjusting rod penetrates through the hinged position of one upper arm and the lower arm, the sleeve penetrates through the hinged position of the other upper arm and the lower arm, the adjusting rod is in threaded connection with the sleeve, the height of the top head is adjusted by means of the adjusting rod, pressure acting on the top head is evenly transmitted to the base through the two upper arms and the two lower arms.

As another embodiment of this application, two articulated shafts are worn to be equipped with respectively in the articulated department of upper arm and two lower arm, it slides and passes one to adjust the pole the articulated shaft, the sleeve is fixed to pass another the articulated shaft the tip of adjusting the pole sets firmly and is used for spacingly articulated axial adjust the gliding spacing ring in pole outside.

As another embodiment of this application, it has the stop collar to slide on the regulation pole, the stop collar is located the upper arm with the inboard of the articulated department of underarm, the stop collar be used for with sleeve contact realizes the biggest opening angle between spacing adjacent upper arm and the underarm.

As another embodiment of the application, the adjusting rod is further sleeved with a bearing, and the bearing is located between the hinge shaft and the limiting ring.

As another embodiment of the application, the ends of the two upper arms hinged with the jacking head are respectively provided with first everting teeth, and the first everting teeth of the two upper arms are meshed with each other and used for distributing pressure acting on the upper arms.

As another embodiment of the present application, two of the lower arms are respectively provided with a second outwardly turned tooth at one end hinged to the base, and the second outwardly turned teeth of the two lower arms are engaged with each other, and the second outwardly turned teeth are used for distributing the pressure acting on the lower arms.

As another embodiment of the present application, the hinge shafts are rotatable at the hinge points of the upper arm and the lower arm, and the two hinge shafts are opposite in penetrating direction.

As another embodiment of this application, two the upper arm with the articulated department of top is equipped with first round pin axle, two the lower arm with the articulated department of base is equipped with the second round pin axle, it is located to adjust the pole the spacing ring outside is equipped with twists the ring.

As another embodiment of the present application, when the lengths of the two upper arms or the two lower arms are not equal, a parallelogram is enclosed, the length of one upper arm and one lower arm that are oppositely and non-adjacently arranged is equal, and the plug and the base are located on different plumb lines;

the length of the two upper arms and the length of the two lower arms are equal, the two upper arms and the two lower arms are encircled to form an equilateral quadrangle, and the jacking head and the base are located on the same plumb line.

As another embodiment of this application, be equipped with in the top and be used for connecting two the first reinforcement frame of first round pin axle, the base is inside to be equipped with and to be used for connecting two the second reinforcement frame of second round pin axle.

The utility model provides a pair of modular formula jack of cutting's beneficial effect lies in: compared with the prior art, the utility model relates to a modular scissor jack, constitute parallelogram or equilateral quadrilateral structure jointly by two upper arms and two underarms, the top is located different or the same plumb line with the base, act on the pressure on the top, through parallelogram or equilateral quadrilateral structure, transmit to the base once more, make pressure distribution even, adjust the pole through revolving soon, make and take place relative movement between regulation pole and the sleeve, then can push away the overhead rising and descend, the technical problem that scissor jack has the inhomogeneous technical problem of atress in using has been solved, have and evenly transmit the effect to acting on jack, the whole atress of jack is even, it is not fragile, jack falls convenient operation's technological effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a combined scissor jack according to an embodiment of the present invention;

fig. 2 is a three-dimensional structure diagram of a combined scissor jack according to an embodiment of the present invention;

fig. 3 is an exploded perspective view of a combined scissor jack according to an embodiment of the present invention;

fig. 4 is an exploded view of an elevation structure of a combined scissor jack according to an embodiment of the present invention;

fig. 5 is an exploded view of another perspective and three-dimensional structure of a combined scissor jack according to an embodiment of the present invention;

fig. 6 is a schematic diagram of an alternative combined scissor jack according to an embodiment of the present invention, in which upper arms and lower arms (four long arms) are combined with each other;

fig. 7 is a schematic diagram of an alternative combined scissor jack according to an embodiment of the present invention, in which upper arms and lower arms (four short arms) are combined with each other.

In the figure: 1. a base; 2. ejecting the head; 3. an upper arm; 4. a lower arm; 5. adjusting a rod; 6. a sleeve; 7. hinging a shaft; 8. a limiting ring; 9. a limiting sleeve; 10. a bearing; 11. a first outwardly turned tooth; 12. a second outer turnover tooth; 13. a first pin shaft; 14. a second pin shaft; 15. screwing a ring; 16. lightening holes; 17. a first reinforcing frame; 18. a second reinforcing frame.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 7, a combined scissor jack according to the present invention will be described. The combined scissor jack comprises a base 1, a top head 2, an upper arm 3, a lower arm 4, an adjusting rod 5 and a sleeve 6, wherein the top head 2 is positioned above the base 1, and the top head 2 and the base 1 are positioned on different or the same plumb lines; two upper arms 3 are provided, one ends of the two upper arms 3 are respectively hinged on the top 2, the other ends are free ends, and the lengths of the two upper arms 3 are different or equal; the two lower arms 4 are respectively hinged to the base 1 at one end, the other ends of the two lower arms 4 are respectively hinged to free ends of the two upper arms 3, the two lower arms 4 are different in length or equal in length, the two upper arms 3 and the two lower arms 4 enclose a parallelogram or an equilateral quadrilateral, and the two upper arms 3 and the two lower arms 4 can be mutually combined for use; the adjusting rod 5 penetrates through the hinged position of one upper arm 3 and the lower arm 4, the sleeve 6 penetrates through the hinged position of the other upper arm 3 and the lower arm 4, the adjusting rod 5 is in threaded connection with the sleeve 6, the height of the top head 2 is adjusted by means of the adjusting rod 5, pressure acting on the top head 2 is evenly transmitted to the base 1 through the two upper arms 3 and the two lower arms 4.

The utility model provides a pair of modular scissor jack, compared with the prior art, the utility model relates to a modular scissor jack, constitute parallelogram or equilateral quadrilateral structure jointly by two upper arms 3 and two underarms 4, top 2 is located different or the same plumb line with base 1, act on the pressure on top 2, through parallelogram or equilateral quadrilateral structure, transmit again to base 1 on, make pressure distribution even, adjust pole 5 through revolving soon, make and adjust the pole 5 and take place relative movement between pole 5 and the sleeve 6, then can push up top 2 and rise and descend, the technical problem that scissor jack exists the inhomogeneous technical problem of atress in the use has, have the even transmission of effect ability to acting on the jack, the whole atress of jack is even, it is not fragile, jack falls convenient operation's technological effect.

The automobile jack is a mechanical tool which is used for replacing a spare tire and is convenient for replacing an automobile tire when the automobile is driven out. Is usually placed in the tool box of the automobile. There are several categories of automobile jacks. The hydraulic jack is used for repairing the vehicle, and the hydraulic jack and the mechanical jack are used for repairing the vehicle.

In this embodiment, the adjusting rod 5 is screwed and connected with the sleeve 6 in a screwing manner, so that the adjusting rod and the sleeve move relatively in the adjusting process, the upper arm 3 and the lower arm 4 can be pulled to rotate around a hinge point, and the height of the plug 2 can be adjusted.

As shown in fig. 6 and 7, the two upper arms 3 and the two lower arms 4 are combined with each other for use, the two upper arms are both located at the upper part of the hinge point, and the two lower arms 4 are both located at the lower part of the hinge point, so that the combined structure can be used; as shown in fig. 1, the two upper arms 3 and the two lower arms 4 are combined with each other to form a parallelogram structure when they are different in length and used in practice. The two upper arms 3 in fig. 1, one of which is longer and the other shorter, may be referred to as long and short arms; fig. 6 shows the combined use state of all the long arms, and fig. 7 shows the combined use state of all the short arms.

In conclusion, the two upper arms 3 and the two lower arms 4 can be mutually combined or assembled with the jacking head 2 and the base 1, the two long arms and the two short arms can be mutually combined for use to form a parallelogram structure, or the four long arms can be mutually combined for use, or the four short arms can be mutually combined for use, the functions of an automobile jack can be achieved, and the technical problem that the scissor jack is not uniformly stressed in use can be solved.

As a specific implementation manner of the combined scissor jack, please refer to fig. 1 to 5, hinge shaft 7 is respectively worn to be equipped with in the articulated department of two upper arms 3 and two lower arms 4, adjust pole 5 and slide and pass a hinge shaft 7, sleeve 6 is fixed and passes another hinge shaft 7, the tip of adjusting pole 5 has set firmly be used for spacing hinge shaft 7 to adjust the gliding spacing ring 8 in the pole 5 outside.

In this embodiment, during the adjustment of the adjustment lever 5, the limiting ring 8 can pull the hinge shaft 7 to slide axially along the adjustment lever 5, so that the upper arm 3 and the lower arm 4 can rotate around the hinge shaft 7, and the plug 2 can be lifted in the vertical direction.

As a specific implementation manner of the combined scissor jack, please refer to fig. 1 to 5, the adjusting rod 5 is slidably connected with a limiting sleeve 9, the limiting sleeve 9 is located at the inner side of the hinge of the upper arm 3 and the lower arm 4, and the limiting sleeve 9 is used for contacting the sleeve 6 to realize the maximum opening angle between the adjacent upper arm 3 and the lower arm 4. The limiting sleeve 9 limits the maximum opening angle between the two upper arms 3 or between the upper arm 3 and the lower arm 4, so that the whole jack can be kept stable and does not incline or fall down and the like in the process of operating the jack.

As a specific embodiment of the combined scissor jack, please refer to fig. 1 to 5, the adjusting rod 5 is further sleeved with a bearing 10, the bearing 10 is located at the outer side of the hinge joint of the upper arm 3 and the lower arm 4, or on the adjusting rod 5 between the hinge shaft 7 and the limiting ring 8, the bearing 10 is used for supporting the rotation of the adjusting rod 5. When the adjusting rod 5 rotates, the adjusting rod also rotates in the bearing 10, and the adjusting rod 5 can be supported to rotate.

As a specific embodiment of the combined scissor jack, please refer to fig. 1 to 5, the first outward-turning teeth 11 are respectively disposed on the two upper arms 3 and at one end hinged to the top 2, and the first outward-turning teeth 11 of the two upper arms 3 are meshed with each other, when the two upper arms 3 are hinged to the top 2, the first outward-turning teeth 11 are used for distributing the pressure acting on the upper arms 3. When two first outer tooth 11 intermeshing transmission in-process, act on the pressure on top 2, or the weight of car acts on the pressure on top 2 in the use, then can be through two first outer tooth 11 transmissions on upper arm 3 and underarm 4, through setting up first outer tooth 11, pressure can evenly transmit, can make up between two upper arms 3 and form a body structure, makes the structure after two upper arms 3 make up more stable, does benefit to the jack and uses.

As a specific embodiment of the combined scissor jack, please refer to fig. 1 to 5, the two lower arms 4 are respectively provided with a second outward-turning tooth 12 at one end hinged to the base 1, and the second outward-turning teeth 12 of the two lower arms 4 are engaged with each other, and the second outward-turning teeth 12 are used for distributing the pressure applied to the lower arms 4. The action principle of the two second outwardly turned teeth 12 is the same as that of the two first outwardly turned teeth 11, as described above, and therefore, the detailed description thereof is omitted.

As a specific embodiment of the combined scissor jack provided by the present invention, please refer to fig. 1 to 5, the hinge shaft 7 is rotatable at the hinge position of the upper arm 3 and the lower arm 4, and the two hinge shafts 7 are opposite in penetrating direction. It will be appreciated that one hinge shaft 7 passes through one side of one upper arm 3 and the other hinge shaft 7 passes through the other side of the other upper arm 3, which enables the pressures acting on both upper arms 3 to be balanced, while also facilitating installation and use.

As a specific embodiment of the combined scissor jack, please refer to fig. 1 to 5, the hinged position of the two upper arms 3 and the top 2 is provided with a first pin 13, the hinged position of the two lower arms 4 and the base 1 is provided with a second pin 14, and the adjusting rod 5 is provided with a twisting ring 15 outside the limiting ring 8. In particular use, a manually usable tool or wand is passed through the screw ring 15 and the screw ring 15 is rotated, so that the adjustment lever 5 can be rotated for the purpose of adjusting the height of the plug 2.

As a specific embodiment of the combined scissor jack provided by the present invention, please refer to fig. 1 to 5, when the lengths of the two upper arms 3 or the two lower arms 4 are different, a parallelogram is formed by the two upper arms 3 or the two lower arms 4, the lengths of the upper arm 3 and the lower arm 4 which are arranged oppositely and non-adjacently are equal, and the top 2 and the base 1 are located on different plumb lines. If the length of two upper arms 3 equals and the length of two lower arms 4 equals, enclose into equilateral quadrilateral, top 2 and base 1 are located same plumb line, act on the pressure on top 2, homoenergetic evenly transmits to base 1 through two upper arms 3 and two lower arms 4 on.

The above-mentioned equal lengths of the upper arm 3 and the lower arm 4 mean equal effective lengths, which are terms of expertise of those skilled in the art, that is, the effective lengths of the upper arm 3 and the lower arm 4 or the lengths capable of supporting, that is, the effective lengths, and are not necessarily the total length of the upper arm 3 or the lower arm 4.

As a specific embodiment of the combined scissor jack provided by the present invention, please refer to fig. 1 to 5, a first reinforcing frame 17 for connecting two first pin shafts 13 is disposed inside the top 2, and a second reinforcing frame 18 for connecting two second pin shafts 14 is disposed inside the base 1. The first reinforcing frame 17 and the second reinforcing frame 18 have the same structure and are both U-shaped structures, and a plurality of through holes are formed in the U-shaped structures, so that the upper arm 3 and the lower arm 4 can conveniently penetrate through the through holes.

The first reinforcing frame 17 and the second reinforcing frame 18 can reinforce the structural strength of connection between two first pin shafts 13 and the structural strength of connection between two second pin shafts 14, so that pressure acting on the top head 2 can be uniformly transmitted to two upper arms 3 through the first reinforcing frame 17, then transmitted to the second reinforcing frame 18 through two lower arms 4, and finally transmitted to the base 1, and the first reinforcing frame 17 and the second reinforcing frame 18 also play a role in pressure distribution.

As a specific implementation of a modular scissor jack, please refer to fig. 1 to 5, two upper arms 3 and two lower arms 4 are three-side surrounding structure, and all are equipped with a plurality of lightening holes 16, and two upper arms 3 and two lower arms 4 are integrative stamping forming and make, and lightening holes 16 can reduce the self weight of upper arm 3 and lower arm 4.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A modular scissor jack, comprising:

a base;

the top is positioned above the base, and the top and the base are positioned on different or the same plumb lines;

two upper arms, wherein one ends of the two upper arms are respectively hinged on the top head, the other ends of the two upper arms are free ends, and the lengths of the two upper arms are different or equal;

the two lower arms are respectively hinged to the base at one end and hinged to free ends of the two upper arms at the other end, the two lower arms are different in length or equal in length, the two upper arms and the two lower arms enclose a parallelogram or an equilateral quadrilateral, and the two upper arms and the two lower arms can be mutually combined for use;

the adjusting rod penetrates through the hinged part of the upper arm and the lower arm; and

the sleeve penetrates through the hinged position of the other upper arm and the lower arm, the adjusting rod is in threaded connection with the sleeve, the height of the top head is adjusted by means of the adjusting rod, pressure acting on the top head is evenly transmitted to the base through the two upper arms and the two lower arms.

2. The combination scissor jack of claim 1, wherein the hinged joints of the two upper arms and the two lower arms are respectively provided with a hinge shaft, the adjusting lever slides through one hinge shaft, the sleeve is fixed through the other hinge shaft, and a limiting ring for limiting the sliding of the hinge shaft to the outside of the adjusting lever is fixed at the end of the adjusting lever.

3. The combination scissor jack of claim 2, wherein the adjustment lever has a stop collar slidably attached thereto, the stop collar being located inboard of the articulation of the upper arm with the lower arm, the stop collar being configured to contact the sleeve to limit the maximum opening angle between adjacent upper and lower arms.

4. The combination scissor jack of claim 3, wherein the adjustment lever further includes a bearing disposed thereon, the bearing being disposed between the pivot shaft and the stop ring.

5. The combination scissor jack of claim 1, wherein the upper arms each have a first outwardly turned tooth at the end hinged to the head, and the first outwardly turned teeth of the upper arms engage each other to distribute the pressure applied to the upper arms.

6. The combination scissor jack of claim 5, wherein the lower arms are provided with respective second outwardly turned teeth at the ends thereof that are hinged to the base, and the second outwardly turned teeth of the lower arms are engaged with each other, the second outwardly turned teeth being adapted to distribute the pressure applied to the lower arms.

7. The combination scissor jack of claim 2, wherein the pivot axis is pivotable at the pivot of the upper arm and the lower arm, the pivot axes being opposite in direction of penetration.

8. The combination scissor jack of claim 2, wherein a first pin is provided at the joint of the upper arms and the top, a second pin is provided at the joint of the lower arms and the base, and a screw ring is provided on the adjusting lever outside the stop ring.

9. The combination scissor jack of claim 1, wherein the two upper arms or the two lower arms are of unequal lengths and enclose a parallelogram, one upper arm and one lower arm that are oppositely and non-adjacently disposed are of equal length, and the head and the base are on different plumbs;

10. The combination scissor jack of claim 8, wherein the head has a first reinforcement frame disposed therein for connecting the first two pins, and the base has a second reinforcement frame disposed therein for connecting the second two pins.