CN115321407A

CN115321407A - Portable spiral claw type jack

Info

Publication number: CN115321407A
Application number: CN202211044352.8A
Authority: CN
Inventors: 王列
Original assignee: Shaoxing Haoxang Machinery Equipment Co ltd
Current assignee: Shaoxing Haoxang Machinery Equipment Co ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-11-11

Abstract

The utility model provides a portability spiral claw formula jack, belong to jack technical field, which comprises an outer shell, the inside of shell body is well accuse stake, the inside below threaded connection of shell body has the chassis, the upper end on chassis is rotated and is connected with the long post, the thread groove has been seted up to the outside top of long post, the holding ring has been cup jointed to the outside of long post, the outside screw thread of thread groove has cup jointed the sleeve, telescopic upper end fixedly connected with roof, the operation is changeed and is rotated and drive the axis and make the centre shaft follow the axis and rotate in step, the axis drives little bevel gear and makes big bevel gear rotate in step, big bevel gear pivoted drives the long post simultaneously and makes the thread groove rotate in telescopic inside, the sleeve receives that screw drive rises and drives the roof and rise in the inside of shell body and push away article in step, will change the setting and connect into the integral type with the axis outside the shell body simultaneously, the effectual portability that improves this device, through setting up the board of lifting, the limited problem of operation space has been solved by the lifting object bottom.

Description

Portable spiral claw type jack

Technical Field

The invention belongs to the technical field of jack equipment, and particularly relates to a portable spiral claw type jack.

Background

The jacks are divided into a mechanical jack, a hydraulic jack and the like, and the principles are different. In principle, the most basic principle on which a hydraulic drive is based is pascal's law, i.e. the pressure is uniform throughout the liquid. Thus, in a balanced system, a relatively small piston exerts a relatively small pressure on it, while a large piston exerts a relatively large pressure on it, which keeps the liquid still. The screw jack adopts an external handle to toggle the pulling claw, the pulling claw pushes the ratchet wheel to rotate in a clearance way, and the bevel pinion drives the bevel pinion to rotate the lifting screw rod, so that the lifting sleeve can be lifted or descended to achieve the function of lifting tension.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art and provides a portable screw claw type jack.

The technical problem of the invention is mainly solved by the following technical scheme: the utility model provides a portable spiral claw formula jack, which comprises an outer shell, the inside of shell body is well accuse stake, the inside below threaded connection of shell body has the chassis, the upper end on chassis is the opening form, the upper end on chassis is rotated and is connected with the long column, the thread groove has been seted up to the outside top of long column, the holding ring has been cup jointed to the outside of long column, the outside screw thread of thread groove has cup jointed the sleeve, sleeve swing joint is in the inside of shell body, and telescopic upper end activity runs through the inside of shell body and extends to the outside top of shell body, telescopic upper end fixedly connected with roof, the surface of placing the shell body upper end is laminated to the roof, the outside fixed cover of long column has connect big bevel gear, big bevel gear meshing is connected with little bevel gear, little bevel gear is vertical setting, the inside fixed cover of little bevel gear has connect the axis, the outside fixed connection of shell body has the drum end, the one end that little bevel gear was kept away from to the axis passes the inside of drum end and extends to the outside of shell body, the one end fixed cover that the axis kept away from little bevel gear has connect the circle tooth, the outside fixed cover that the axis has connect to have the handle, the pole is located the inside of changeing.

Preferably, a ring plate is fixedly embedded in the outer portion of the rotating handle, the inner portion of the ring plate is communicated with the inner portion of the rotating handle, an inserting pile is movably connected to the inner portion of the ring plate, and one end, located inside the ring plate, of the inserting pile is in a convex plate shape.

Preferably, an outer slot is formed in one side, away from the rotating handle, of the ring plate, a positioning rod is fixedly connected to one end, away from the inside of the ring plate, of the inserted pile, and the positioning rod and the outer slot are located on the same movement line.

Preferably, the lower part of shell body is provided with the bottom plate, and the upper surface of bottom plate has seted up the notch, and the inner ring groove has been seted up to the inner wall of going up the notch, and the inner ring groove is the annular form, and three perpendicular groove has been seted up to the upper surface of bottom plate, and the inside in perpendicular groove is linked together with the inside in inner ring groove.

Preferably, the clamping plate is fixedly sleeved below the outer part of the outer shell and comprises three protruding parts, and the length of the three protruding parts is matched with that of the vertical groove.

Preferably, an outer notch is formed in the outer portion of the outer shell, the inner portion of the outer notch is communicated with the inner portion of the outer shell, a sealing plate is connected to the inner portion of the outer notch in a clamped mode, and the sealing plate is matched with the outer notch in shape and size.

Preferably, the equal fixedly connected with sleeve stake in the outside both sides of shell body, the inside of every sleeve stake all rotates and is connected with the pivot, and the both ends of pivot are located the outside both sides of sleeve stake respectively, and the equal fixedly connected with handle in the outside of every pivot, and the handle rotates the outside of connecting at the shell body through the pivot.

Preferably, an auxiliary lifting assembly for jacking lower articles is arranged outside the shell, the auxiliary lifting assembly comprises a hanging plate which is fixedly connected outside the shell and located on one side, far away from the rotating handle, of the outer portion of the shell, the hanging plate is sleeved with an L-shaped hanging plate, hollow piles are arranged inside the hanging plate, the hanging plate is connected outside the shell in a sliding mode, a short plate is fixedly connected to the upper portion inside the hanging plate, an opening which is the same as the top plate in shape is arranged below the short plate, the short plate is movably placed on the top of the top plate, a lifting plate is fixedly connected to one side, far away from the shell, of the hanging plate and located below the outer portion of the hanging plate, and the upper surface of the lifting plate is provided with notches.

As preferred, outside fixedly connected with auxiliary stay mechanism, auxiliary stay mechanism is including the planking, planking fixed connection is in the outside, and the planking is located the outside one side of keeping away from, the movable groove has been seted up to the inside of planking, the inside swing joint of movable groove has the backup pad, the inside groove has been seted up to the inside of backup pad, the tooth's socket has been seted up to the inner wall of inside groove, the inside meshing of tooth's socket is connected with the cover tooth, the stock has been cup jointed in the inside activity of cover tooth, the stock is kept away from the one end activity of cover tooth and is run through the inner wall of movable groove and extend to the outside of planking, and the stock is kept away from to the outside one end fixedly connected with carousel of planking.

As preferred, the dead slot has been seted up to the inside of planking, the inside swing joint of dead slot has the baffle, the fixed cover of baffle connects in the outside of stock, the one end fixedly connected with spring of cover tooth is kept away from to the baffle, the one end fixed connection of baffle is kept away from to the spring is at the inner wall of dead slot, and the spring activity cup joints the outside at the stock, round notch has been seted up to the inside one side of keeping away from the dead slot of planking, the inside and the inside of dead slot of round notch are linked together, the tooth's socket has been seted up to the inner wall of round notch, the one end fixedly connected with pinion rack of carousel is kept away from to the stock, the shape size of pinion rack and the shape size looks adaptation of tooth's socket, and pinion rack activity block is in the inside of tooth's socket.

The invention has the following beneficial effects:

1. this screw claw formula jack, through placing article in the top of roof, hold afterwards and change the handle, and drive and change the handle and rotate, change and rotate the drive axis and make the round tooth follow the axis and rotate in step, the axis drives little bevel gear and makes big bevel gear rotate in step, big bevel gear drives the long post and makes the thread groove rotate in telescopic inside simultaneously, the sleeve receives the spiral transmission and rises and drive the roof in step and rise in the inside of shell body and crowd article and push, will change simultaneously and set up outside the shell body and connect into an integrated type with the axis, the effectual portability that has improved this device.

2. This screw claw formula jack, through setting up bottom plate cooperation cardboard, drive the position that the three vertical slot was aimed at to the cardboard with the shell body, put down the cardboard perpendicularly, the cardboard gets into the inside back of erecting the groove, drive the cardboard with the shell body and rotate in the inside of erecting the groove, the inside of annular including the inside and the block that make the cardboard get into the inside of erecting the groove, with this can be with the stable inside of placing at the bottom plate of shell body, the back is connected with the bottom plate to the shell body simultaneously, bottom plate and desktop or ground contact, stability when having increased the whole lifting article of shell body.

3. This screw claw formula jack sets up outer notch through the outside at the shell body, takes out the shrouding from the inside of outer notch, makes the inside situation of observation shell body that the user can be clear, reaches to do benefit to and observes the effect of maintenance to the inside spare part of shell body.

4. This screw claw formula jack through when needing to take up the shell body and carry, can hold both sides handle and make the handle use the pivot to rotate outside the shell body as the axle center, makes the handle form the angle that the user of being convenient for took and carry outside the shell body, has improved the convenience that the user used the shell body of taking.

5. This screw claw formula jack drives axis and bevel pinion and makes the roof drive article through will changeing the handle and carry out the jacking after, removes the stake of inserting in the inside of crown plate to the inside of changeing the handle to during protruding end card income circular tooth outside crack of stake of inserting, fix circular tooth and axis with this, thereby when the roof supports the jack to article, improved the stable effect to article.

6. This screw claw formula jack, through the outside of placing the link plate, the link plate is located the outside of shell body this moment, the short slab block is in the outside of roof, will lift the board and insert in the bottom of lower article, rotate afterwards to change and drive the roof in the top rebound of shell body, the roof drives the short slab and makes the link plate drive and lift the board and go on ascending in step with article, the link plate rises along the outside when ascending simultaneously, when reaching and can carrying out the lifting to the article of lower position, the stability that the link plate drive article and rise has been improved, the realization has been solved and has been lifted the object bottom because the limited problem of operating space.

7. This screw claw formula jack through will placing when using, when placing position ground at ordinary times, rotates the carousel and drives the stock and make the set tooth rotate in step, drives the backup pad and makes the backup pad move about in the inside of activity groove when the set tooth pivoted, and the lower extreme of backup pad downwardly extending and anomalous ground contact increase the contact fulcrum with ground in the outer panel simultaneously to effectual stability ability when placing and using the jack that has improved this device.

8. This screw claw formula jack, when rotating through with the carousel, outwards twitch the carousel in the inside of planking, carousel pulling stock makes the gear shaping board break away from the inside of tooth's socket, can rotate the carousel this moment to the elasticity that produces via the spring after loosening the carousel drives the stock and closes the inside that gets into the tooth's socket with the gear shaping board and fix the stock, reaches the effect of quick location backup pad position, has improved the convenience that the user used.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic exploded view of the outer housing of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2A;

FIG. 4 is a schematic view of the hanging plate of the present invention;

FIG. 5 is a schematic structural view of an outer panel of the present invention;

FIG. 6 is a cross-sectional structural view of the outer panel of FIG. 5 according to the present invention.

In the figure: 1. an outer housing; 11. a handle; 12. pile sleeving; 13. a rotating shaft; 14. an outer notch; 15. closing the plate; 17. a base plate; 18. an upper notch; 19. an inner ring groove; 21. a vertical slot; 22. clamping a plate; 23. turning a handle; 24. a top plate; 25. a ring plate; 26. pile inserting; 27. a cylindrical end; 28. a middle shaft; 29. a sleeve; 31. a thread groove; 32. a positioning ring; 33. a long column; 34. a large bevel gear; 35. a chassis; 36. a bevel pinion gear; 37. round teeth; 38. an external groove is formed; 39. positioning a rod; 41. hanging the plate; 42. a short plate; 43. lifting the plate; 44. a guide plate; 51. an outer plate; 52. a turntable; 53. a support plate; 54. a movable groove; 55. a tooth socket; 56. an inner tank; 57. an empty groove; 58. a spring; 59. a baffle plate; 61. a long rod; 62. sleeving teeth; 63. a toothed plate; 64. a tooth socket; 65. a circular notch.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example one

Referring to fig. 1-3, the present invention provides a technical solution: a portable screw claw jack comprises an outer shell 1, a central control pile is arranged inside the outer shell 1, a chassis 35 is in threaded connection with the lower portion inside the outer shell 1, the upper end of the chassis 35 is in an open shape, a long column 33 is rotatably connected to the upper end of the chassis 35, a threaded groove 31 is formed in the upper portion outside the long column 33, a positioning ring 32 is sleeved outside the long column 33, a sleeve 29 is sleeved on the external thread of the threaded groove 31, the sleeve 29 is movably connected inside the outer shell 1, the upper end of the sleeve 29 movably penetrates through the inside of the outer shell 1 and extends to the upper portion outside the outer shell 1, a top plate 24 is fixedly connected to the upper end of the sleeve 29, the top plate 24 is attached to the surface of the upper end of the outer shell 1, a large bevel gear 34 is fixedly sleeved outside the long column 33, the large bevel gear 34 is connected with a small bevel gear 36 in a meshed mode, the small bevel gear 36 is vertically arranged, a central shaft 28 is fixedly sleeved inside of the small bevel gear 36, a cylindrical end 27 is fixedly connected to the outside of the outer shell 1, one end of the central shaft 28, and one end of the central shaft 23 is rotatably connected with a fixing sleeve 37, and one end of the umbrella gear 23.

The outer fixed ring board 25 of inlaying of commentaries on classics handle 23, the inside of ring board 25 is linked together with the inside of commentaries on classics handle 23, and the inside swing joint of ring board 25 has the stake 26 of inserting, and the one end that the stake 26 is located the ring board 25 inside is established to the convex plate form, and the outer fluting 38 has been seted up to one side that the ring board 25 keeps away from the commentaries on classics handle 23, and the stake 26 is kept away from the inside one end fixedly connected with locating lever 39 of ring board 25, and locating lever 39 and outer fluting 38 are located same motion line.

The below of shell body 1 is provided with bottom plate 17, notch 18 has been seted up to the upper surface of bottom plate 17, go up inner ring groove 19 has been seted up to the inner wall of notch 18, inner ring groove 19 is the annular form, three perpendicular groove 21 has been seted up to the upper surface of bottom plate 17, the inside of perpendicular groove 21 is linked together with inner ring groove 19's inside, the fixed cardboard 22 that has cup jointed in outside below of shell body 1, cardboard 22 is including three bellying, and the length of three bellying and the length looks adaptation of perpendicular groove 21, through setting up bottom plate 17 cooperation cardboard 22, drive shell body 1 and aim at the position of three perpendicular groove 21 cardboard 22 at the cardboard 22, put down cardboard 22 perpendicularly, cardboard 22 gets into the inside back in perpendicular groove 21, drive cardboard 22 with shell body 1 and rotate in the inside of perpendicular groove 21, make cardboard 22 get into the inside of perpendicular groove 21 and block in inner ring groove 19, with this can be with the inside of placing at bottom plate 17 that shell body 1 is stable, shell body 1 is connected the back with bottom plate 17 simultaneously, bottom plate 17 contacts with desktop or ground, stability when having increased 1 whole lifting article.

Outer notch 14 has been seted up to shell body 1's outside, outer notch 14's inside is linked together with shell body 1's inside, outer notch 14's inside block is connected with shrouding 15, shrouding 15 and outer notch 14's shape size looks adaptation, through set up outer notch 14 in shell body 1's outside, take out shrouding 15 from outer notch 14's inside, the inside situation of observation shell body 1 that makes the user can be clear, reach and do benefit to the effect of observing the maintenance to the spare part of shell body 1 inside, the equal fixedly connected with sleeve stake 12 in both sides of shell body 1 outside, the inside of every sleeve stake 12 is all rotated and is connected with pivot 13, the both ends of pivot 13 are located the outside both sides of sleeve stake 12 respectively, and the equal fixedly connected with handle 11 in outside of every pivot 13, handle 11 rotates the outside of connecting at shell body 1 through pivot 13, simultaneously when shell body 1 carries in needs, can hold both sides handle 11 and make handle 11 rotate outside shell body 1 with pivot 13 as the axle center, make handle 11 form the angle that the user of being convenient for the user takes, user takes and has improved the convenience of taking.

The working principle of the invention is that,

firstly, an article is placed above the top plate 24, then the rotating handle 23 is held and is driven to rotate, the rotating handle 23 rotates to drive the middle shaft 28 and enable the circular teeth 37 to synchronously rotate along with the middle shaft 28, the middle shaft 28 drives the small bevel gear 36 and enables the large bevel gear 34 to synchronously rotate, the large bevel gear 34 drives the long column 33 and enables the thread groove 31 to rotate inside the sleeve 29 while rotating, the sleeve 29 ascends in the outer shell 1 through spiral transmission and drives the top plate 24 to synchronously ascend to extrude the article, meanwhile, the rotating handle 23 is arranged outside the outer shell 1 and is connected with the middle shaft 28 into a whole, and therefore the portability of the device is effectively improved.

Secondly, after the rotating handle 23 rotates to drive the central shaft 28 and the small bevel gear 36 and the top plate 24 drives the object to be jacked, the inserting pile 26 moves towards the inside of the rotating handle 23 in the annular plate 25, and the protruding end of the inserting pile 26 is clamped into the tooth gap outside the circular tooth 37, so that the circular tooth 37 and the central shaft 28 are fixed, and the object stabilizing effect is improved when the top plate 24 supports and jacks the object.

Example two

On the basis of the first embodiment, please refer to fig. 4, an auxiliary lifting assembly for jacking up lower articles is arranged outside the outer shell 1, the auxiliary lifting assembly includes a guide plate 44, the guide plate 44 is fixedly connected to the outside of the outer shell 1, the guide plate 44 is located on one side of the outside of the outer shell 1, which is far away from the rotating handle 23, a hanging plate 41 is movably sleeved outside the guide plate 44, the hanging plate 41 is L-shaped, the inside of the hanging plate 41 is a hollow pile, the hanging plate 41 is slidably connected to the outside of the outer shell 1 through the guide plate 44, a short plate 42 is fixedly connected above the inside of the hanging plate 41, an opening having the same shape as the top plate 24 is arranged below the short plate 42, the short plate 42 is movably arranged above the top plate 24, a lifting plate 43 is fixedly connected to one side of the hanging plate 41, which is far away from the outer shell 1, the lifting plate 43 is located below the outside of the hanging plate 41, and an engraved groove is arranged on the upper surface of the lifting plate 43.

The hanging plate 41 is placed outside the guide plate 44, at the moment, the hanging plate 41 is located outside the outer shell body 1, the short plate 42 is clamped outside the top plate 24, the lifting plate 43 is inserted into the bottom of a lower article, then the rotating handle 23 is rotated to drive the top plate 24 to move upwards above the outer shell body 1, the top plate 24 drives the short plate 42 and enables the hanging plate 41 to drive the lifting plate 43 to lift the article synchronously, meanwhile, the hanging plate 41 lifts along the outside of the guide plate 44 when lifting is carried out on the article at a lower position, and meanwhile, the stability that the hanging plate 41 drives the article to lift is improved.

EXAMPLE III

On the basis of the first embodiment, referring to fig. 5-6, an auxiliary supporting mechanism is fixedly connected to the outer side of 10, the auxiliary supporting mechanism includes an outer plate 51, the outer plate 51 is fixedly connected to the outer side of 10, and the outer plate 51 is located on the side of the outside of 10 away from 23, a movable groove 54 is formed in the outer plate 51, a supporting plate 53 is movably connected to the inside of the movable groove 54, an inner groove 56 is formed in the supporting plate 53, a tooth groove 55 is formed in the inner wall of the inner groove 56, a sleeve tooth 62 is engaged and connected to the inside of the tooth groove 55, a long rod 61 is movably sleeved on the inside of the sleeve tooth 62, one end of the long rod 61, which is far away from the sleeve tooth 62, movably penetrates through the inner wall of the movable groove 54 and extends to the outside of the outer plate 51, a rotating plate 52 is fixedly connected to one end of the long rod 61, when the outer plate 17 is placed for use, when the ground is not flat, the ground at the placement position 17, the rotating plate 52 drives the supporting plate 61 to drive the supporting plate 53 to move downward to contact with the ground, thereby increasing the contact with the ground, and improving the effective stability of the top of the long rod 17 when the long rod is placed for use.

Empty slot 57 has been seted up to planking 51's inside, empty slot 57's inside swing joint has baffle 59, baffle 59 fixes the cover and connects in the outside of stock 61, the one end fixedly connected with spring 58 that cover tooth 62 was kept away from to baffle 59, the one end fixed connection that baffle 59 was kept away from to spring 58 is at the inner wall of empty slot 57, and spring 58 activity cup joints in the outside of stock 61, round notch 65 has been seted up to the inside one side of keeping away from empty slot 57 of planking 51, the inside of round notch 65 is linked together with the inside of activity groove 54, tooth's socket 64 has been seted up to the inner wall of round notch 65, stock 61 keeps away from the one end fixedly connected with pinion plate 63 of carousel 52, the shape size of pinion plate 63 and the shape size looks adaptation of tooth's socket 64, and pinion plate 63 activity block is in the inside of tooth's socket 64, when rotating carousel 52 through loosening carousel, outwards twitch carousel 52 in the inside of planking 51, carousel 52 stimulates 61 and makes pinion plate 63 break away from the inside of tooth's socket 64, can rotate carousel 52 this moment, and the stock 52 drives the elasticity block 61 that produces through spring 58 and gets into the stock 63 gets into the inside location that the stock 53 that the convenience that has improved the convenient use, the convenient and fast effect of the user has been carried out.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.

Claims

1. The utility model provides a portable spiral claw jack, including shell body (1), its characterized in that the inside of shell body (1) is well accuse stake, the inside below threaded connection of shell body (1) has chassis (35), the upper end of chassis (35) is the opening form, the upper end of chassis (35) is rotated and is connected with long post (33), thread groove (31) have been seted up to the outside top of long post (33), locating ring (32) have been cup jointed to the outside of long post (33), the outside screw thread of thread groove (31) has cup jointed sleeve (29), sleeve (29) swing joint is in the inside of shell body (1), and the upper end activity of sleeve (29) runs through the inside of shell body (1) and extends to the outside top of shell body (1), the upper end fixedly connected with roof (24) of sleeve (29), the surface of placing outer shell body (1) upper end is laminated to roof (24), the outside fixed cup joint of long post (33) has big bevel gear (34), big bevel gear (34) meshing is connected with pinion (36), pinion (36) is vertical setting, the inside fixed hub gear (36) that has been connected with the axis gear (28), the outside of umbrella (27) has been connected with the fixed hub (27) that the axis gear (27) has been kept away from the outside of shell body (27), one end of the middle shaft (28) far away from the small bevel gear (36) is fixedly sleeved with a circular tooth (37), the outer part of one end of the middle shaft (28) far away from the small bevel gear (36) is fixedly sleeved with a rotating handle (23), and the circular tooth (37) is positioned inside the rotating handle (23).

2. The portable screw jaw jack according to claim 1, wherein the outer portion of the rotating handle (23) is fixedly embedded with a ring plate (25), the inner portion of the ring plate (25) is communicated with the inner portion of the rotating handle (23), the inner portion of the ring plate (25) is movably connected with the inserting pile (26), and one end of the inserting pile (26) positioned in the ring plate (25) is formed into a convex plate shape.

3. The portable screw claw jack according to claim 2, wherein an outer slot (38) is formed in one side of the ring plate (25) away from the rotating handle (23), a positioning rod (39) is fixedly connected to one end of the inserting pile (26) away from the inner portion of the ring plate (25), and the positioning rod (39) and the outer slot (38) are located on the same movement line.

4. The portable screw claw jack according to claim 1, wherein a bottom plate (17) is disposed below the outer shell (1), an upper notch (18) is formed in an upper surface of the bottom plate (17), an inner ring groove (19) is formed in an inner wall of the upper notch (18), the inner ring groove (19) is ring-shaped, three vertical grooves (21) are formed in an upper surface of the bottom plate (17), and an inside of each vertical groove (21) is communicated with an inside of the inner ring groove (19).

5. A portable screw jaw jack according to claim 4 in which a catch plate (22) is fixedly secured to the underside of the exterior of the outer housing (1), the catch plate (22) comprising three lugs of a length to match the length of the vertical slot (21).

6. The portable screw claw jack according to claim 1, wherein the outer casing (1) is provided with an outer notch (14) at the outside, the inner portion of the outer notch (14) is communicated with the inner portion of the outer casing (1), the inner portion of the outer notch (14) is connected with a sealing plate (15) in a clamping manner, and the sealing plate (15) is matched with the outer notch (14) in shape and size.

7. The portable screw claw jack according to claim 1, wherein the two sides of the outer part of the outer shell (1) are fixedly connected with the sleeve piles (12), the inner part of each sleeve pile (12) is rotatably connected with the rotating shaft (13), the two ends of the rotating shaft (13) are respectively positioned on the two sides of the outer part of each sleeve pile (12), the outer part of each rotating shaft (13) is fixedly connected with the handle (11), and the handle (11) is rotatably connected with the outer part of the outer shell (1) through the rotating shaft (13).

8. The portable screw claw jack according to claim 1, wherein an auxiliary lifting assembly for lifting up lower objects is arranged outside the outer shell (1), the auxiliary lifting assembly comprises a guide plate (44), the guide plate (44) is fixedly connected to the outside of the outer shell (1), the guide plate (44) is positioned on one side, away from the rotating handle (23), of the outside of the outer shell (1), a hanging plate (41) is movably sleeved outside the guide plate (44), the hanging plate (41) is L-shaped, the inside of the hanging plate (41) is a hollow pile, the hanging plate (41) is slidably connected to the outside of the outer shell (1) through the guide plate (44), a short plate (42) is fixedly connected to the upper side inside of the hanging plate (41), an opening which is the same as the top plate (24) in shape is arranged below the short plate (42), the short plate (42) is movably arranged above the top plate (24), a lifting plate (43) is fixedly connected to one side, away from the outer shell (1), the lifting plate (43) is positioned below the outside of the hanging plate (41), and a notch groove is formed in the upper surface of the lifting plate (43).

9. The portable screw claw jack according to claim 1, wherein the outer side of the outer plate (10) is fixedly connected with an auxiliary support mechanism, the auxiliary support mechanism comprises an outer plate (51), the outer plate (51) is fixedly connected to the outer side of the outer plate (10), the outer plate (51) is located on one side of the outer plate (10) far away from the outer side (23), a movable groove (54) is formed in the outer plate (51), a support plate (53) is movably connected to the inner portion of the movable groove (54), an inner groove (56) is formed in the support plate (53), a tooth groove (55) is formed in the inner wall of the inner groove (56), a sleeve tooth (62) is connected to the inner portion of the tooth groove (55) in a meshed manner, a long rod (61) is sleeved on the inner portion of the sleeve tooth (62), one end of the long rod (61) far away from the sleeve tooth (62) movably penetrates through the inner wall of the movable groove (54) and extends to the outer side of the outer plate (51), and one end of the long rod (61) far away from the outer side of the outer plate (51) is fixedly connected with a rotary table (52).

10. The portable screw claw jack according to claim 9, wherein the outer plate (51) is provided with a hollow groove (57) inside, the hollow groove (57) is movably connected with a baffle (59), the baffle (59) is fixedly sleeved outside the long rod (61), one end of the baffle (59) far away from the sleeve teeth (62) is fixedly connected with a spring (58), one end of the spring (58) far away from the baffle (59) is fixedly connected with the inner wall of the hollow groove (57), the spring (58) is movably sleeved outside the long rod (61), one side of the outer plate (51) far away from the hollow groove (57) is provided with a round notch (65), the inside of the round notch (65) is communicated with the inside of the movable groove (54), the inner wall of the round notch (65) is provided with a toothed inserting plate (63), the end of the long rod (61) far away from the rotary disc (52) is fixedly connected with a toothed inserting plate (63), the size of the toothed plate (63) is matched with the shape of the toothed groove (64), and the toothed inserting plate (63) is movably clamped inside the toothed groove (64).