CN114148936B

CN114148936B - Jack device

Info

Publication number: CN114148936B
Application number: CN202111425265.2A
Authority: CN
Inventors: 陆关贤
Original assignee: Hangzhou Rhino Machinery Co ltd
Current assignee: Hangzhou Rhino Machinery Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2023-10-20
Anticipated expiration: 2041-11-26
Also published as: CN114148936A

Abstract

The invention discloses a jack device, which has the technical scheme that: including the urceolus, still include: an inner cylinder vertically slidably connected to the outer cylinder; the screw rod is rotationally connected in the outer cylinder through a bearing, and the screw rod is in threaded connection with the inner cylinder; the power structure is used for driving the screw rod to rotate; the connecting disc is fixed at the bottom end of the inner cylinder; the pressing structure is arranged on the outer cylinder and used for pressing the outer cylinder to prevent the outer cylinder from sliding; and a lubrication structure that lubricates the screw as the power structure moves. When the jack device is used, the screw is driven to rotate by virtue of the power structure, the outer cylinder is driven to slide outside the inner cylinder, and the lifting function is realized; in addition, rely on the self-locking ability that compresses tightly the structure and can improve this jack, rely on the lubricating structure who sets up can realize carrying out intermittent lubrication to the screw rod when power structure drives the screw rod rotation.

Description

Jack device

Technical Field

The invention relates to the field of jacks, in particular to a jack device.

Background

The jack has two kinds of mechanical and hydraulic. The jack is mainly used for departments such as factories and mines, transportation, logistics and the like to repair vehicles and work such as other lifting and supporting. The structure is light, firm, flexible and reliable, and can be carried and operated by one person. The jack is divided into a mechanical jack, a hydraulic jack and an inflatable jack, and the principles are different. In principle, the mechanical jack adopts a mechanical principle, a handle is usually pulled in a reciprocating manner, a pulling claw pushes a ratchet wheel to rotate in a clearance manner, and a small bevel gear drives a large bevel gear to rotate a lifting screw rod, so that a lifting sleeve is lifted or lowered, and the lifting tension function is achieved. But not as simple as hydraulic jacks. The principle on which the hydraulic jack is based is the pascal principle. The hydraulic jack is divided into a vertical jack and a horizontal jack.

The prior Chinese patent with publication number of CN104176688B discloses a jack safety device, a jack with the safety device, a horizontal jack, a vertical jack and a use method of the jack. The safety device includes: the lifting jack comprises a rack, a supporting rod and a releasing device, wherein a plurality of teeth are arranged on the rack, the rack is used for being fixed on a lifting jack base, one end of the supporting rod is a pointed end so as to be clamped with the teeth on the rack, a hole which is connected with a supporting rod in a pivot mode is formed in the other end of the supporting rod, and the releasing device is used for releasing the clamping of the supporting rod and the rack.

The above patent adopts a gear rack to achieve the lifting purpose, has low bearing capacity, does not have a locking structure, and cannot realize the function of mechanically controlling the linkage lubrication in the lifting process.

Disclosure of Invention

In view of the problems mentioned in the background art, an object of the present invention is to provide a jack device to solve the problems mentioned in the background art.

The technical aim of the invention is realized by the following technical scheme:

a jack apparatus comprising an outer barrel, further comprising:

an inner cylinder vertically slidably connected to the outer cylinder;

the screw rod is rotationally connected in the outer cylinder through a bearing, and the screw rod is in threaded connection with the inner cylinder;

the power structure is used for driving the screw rod to rotate;

the connecting disc is fixed at the bottom end of the inner cylinder;

the pressing structure is arranged on the outer cylinder and used for pressing the outer cylinder to prevent the outer cylinder from sliding;

and a lubrication structure that lubricates the screw as the power structure moves.

By adopting the technical scheme, the jack device drives the screw to rotate by virtue of the power structure when in use, and drives the outer cylinder to slide outside the inner cylinder, so as to realize the lifting function; in addition, rely on the self-locking ability that compresses tightly the structure and can improve this jack, rely on the lubricating structure who sets up can realize carrying out intermittent lubrication to the screw rod when power structure drives the screw rod rotation.

Preferably, the power structure comprises a supporting shaft, a first conical gear, a second conical gear, a handle and a handle, wherein the supporting shaft is rotationally connected in the outer cylinder through a bearing, the first conical gear is fixed at the top end of the screw rod, the second conical gear is fixed outside the supporting shaft, the first conical gear and the second conical gear are meshed with each other, the handle is fixed at the end part of the supporting shaft through a pin, and the handle is fixed on the handle.

Through adopting above-mentioned technical scheme, when the operator rotates the handle on the handle pole, it can drive first bevel gear and rotate, can drive the screw rod through the meshing of first bevel gear and second bevel gear and go up and down to realize going up and down and heightening the purpose.

Preferably, the compacting structure comprises a supporting disc, a supporting column, a sliding groove, a first spring, a sliding column, an end seat and a pressing handle, wherein the supporting disc is fixed on the outer cylinder through a bolt, the supporting column is fixed on the supporting disc, the sliding groove is formed in the supporting column, the sliding column is connected in the sliding groove in a sliding manner, the first spring is connected between the sliding column and the groove wall of the sliding groove, the end seat is fixed with the end of the sliding column, the pressing handle is connected with the end seat in a rotating manner, and a rotating shaft on the pressing handle is eccentrically arranged.

Through adopting above-mentioned technical scheme, after adjusting urceolus to suitable height, can rotate and press the handle for press the handle and compress tightly urceolus and inner tube, the first spring in the spout can pull the traveller, makes traveller and end seat keep certain tensioning, improves the locking effect.

Preferably, the lubricating structure comprises a sealing cover, a storage box, a storage cavity, a groove, a plug, a second spring, a first runner, a second runner, a jack post and a notch groove, wherein the sealing cover is clamped at the top end of the outer cylinder, the storage box is fixed at one side, close to the inner cylinder, of the sealing cover, the storage cavity is formed in the storage box, the groove is formed in the storage box and is communicated with the storage cavity, the plug is slidingly connected in the groove, the second spring is connected between the end part of the plug and the cavity wall of the storage cavity, the first runner is formed in the plug, two ends of the first runner penetrate through the plug, one end of the first runner is arranged at the central axis of the plug, the other end of the first runner is arranged at the annular wall of the plug, the second runner is formed in the storage box, one end of the second runner is communicated with the groove, the other end of the second runner is arranged at the end part of the storage box, the jack post is fixed on the support shaft, and the jack post is inserted into the notch.

Through adopting above-mentioned technical scheme, when the back shaft rotates, it can drive the jack-prop swing to the opening inslot, with the vertical promotion of the cock stem in the recess to compress the second spring and warp, make first runner and second runner realize once the intercommunication, make the lubricating oil in the storage chamber in the storage box flow through first runner and second runner, rely on the action of a dynamic structure to realize once some hourglass lubrication.

Preferably, the storage box is fixedly connected with a first pipeline, the first pipeline is connected with a second pipeline through a connecting sleeve in a threaded manner, and one end of the second pipeline is connected with a sealing plug in a threaded manner.

Through adopting above-mentioned technical scheme, can conveniently pour into lubricating oil into the storage box through first pipeline and second pipeline through utilizing first pipeline and second pipeline.

Preferably, the outer cylinder comprises a middle part and two end parts, the two end parts are respectively fixed with the middle part through bolts, and the middle outer ring is provided with a polytetrafluoroethylene ring.

By adopting the technical scheme, the polytetrafluoroethylene ring on the middle part can reduce the friction force of the inner cylinder and the outer cylinder sliding with each other.

Preferably, the screw is rotationally connected to the outside of the bearing seat, a sliding plate is fixed on the bearing seat, and a channel for vertically sliding one end side of the sliding plate is formed in the outer cylinder.

Through adopting above-mentioned technical scheme, the cooperation that utilizes slide and channel can improve the guide effect when the screw rod urceolus goes up and down, improves urceolus gliding stability.

Preferably, the top of connection pad is fixed with the spliced pole, the spliced pole joint is in the inner tube bottom, the spliced pole through a plurality of bolt with the inner tube is connected fixedly, the bottom of inner tube is provided with the protective sheath.

Through adopting above-mentioned technical scheme, utilize the spliced pole can make things convenient for the connection of connection pad and inner tube fixed, the protective sheath can shelter from the tip.

Preferably, the outer cylinder is fixedly provided with a connecting plate through bolts, the connecting plate is fixedly provided with an overhanging ring or a mounting plate, the overhanging ring is provided with a plurality of penetrating pin holes, and the mounting plate is provided with a plurality of flange holes.

By adopting the technical scheme, the overhanging ring is fixed on the connecting plate and can be clamped into an external rod piece for fixation, so that the stability of the outer barrel when fixed outside the rod piece can be improved; when the mounting plate is adopted, the stability of the outer cylinder when fixed on the plate can be improved.

In summary, the invention has the following advantages:

when the jack device is used, the screw is driven to rotate by virtue of the power structure, the outer cylinder is driven to slide outside the inner cylinder, and the lifting function is realized; in addition, rely on the self-locking ability that compresses tightly the structure and can improve this jack, rely on the lubricating structure who sets up can realize carrying out intermittent lubrication to the screw rod when power structure drives the screw rod rotation.

Drawings

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

FIG. 2 is one of the structural cross-sectional views of the present invention;

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

FIG. 4 is a second cross-sectional view of the structure of the present invention;

FIG. 5 is a third cross-sectional view of the structure of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at B;

FIG. 7 is one of the structural schematic diagrams of an embodiment provided by the present invention;

FIG. 8 is a second schematic diagram of an embodiment of the present invention.

Reference numerals: 1. an outer cylinder; 11. an inner cylinder; 12. a screw; 2. a power structure; 13. a connecting disc; 3. a compacting structure; 4. a lubrication structure; 21. a support shaft; 22. a first bevel gear; 23. a second bevel gear; 24. a handle; 25. a handle; 31. a support plate; 32. a support column; 33. a chute; 34. a first spring; 35. a spool; 36. an end seat; 37. pressing a handle; 41. a cover; 42. a storage box; 43. a storage chamber; 44. a groove; 45. a plug; 46. a second spring; 471. a first flow passage; 472. a second flow passage; 48. a top column; 49. a notch groove; 421. a first pipeline; 422. a second pipeline; 423. connecting sleeves; 111. an intermediate portion; 112. an end portion; 121. a slide plate; 122. a channel; 131. a connecting column; 132. a protective sleeve; 51. a connecting plate; 52. an overhanging ring; 53. a mounting plate; 521. penetrating the pin holes; 531. and (5) a flange hole.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 3, a jack device comprises an outer cylinder 1, and further comprises the following parts: an inner cylinder 11 vertically slidably connected to the outer cylinder 1; the screw rod 12 is rotatably connected in the outer cylinder 1 through a bearing, and the screw rod 12 is in threaded connection with the inner cylinder 11; a power structure 2 for driving the screw 12 to rotate; a connecting disc 13 fixed at the bottom end of the inner cylinder 11; a pressing structure 3 provided on the outer cylinder 1 for pressing the outer cylinder 1 to prevent sliding thereof; and a lubrication structure 4 for lubricating the screw 12 by the action of the follow-up mechanism 2.

Referring to fig. 1-3, when the jack device is in use, the screw rod 12 is driven to rotate by the power structure 2, the outer cylinder 1 is driven to slide outside the inner cylinder 11, and the lifting function is realized; in addition, the self-locking capacity of the jack can be improved by means of the compression structure 3, and intermittent lubrication of the screw 12 can be achieved by means of the arranged lubrication structure 4 when the screw 12 is driven to rotate by the power structure 2.

Referring to fig. 2 and 3, the power structure 2 includes a support shaft 21, a first bevel gear 22, a second bevel gear 23, a handle 24 and a handle 25, the support shaft 21 is rotatably connected in the outer cylinder 1 through a bearing, the first bevel gear 22 is fixed at the top end of the screw 12, the second bevel gear 23 is fixed outside the support shaft 21, the first bevel gear 22 and the second bevel gear 23 are meshed with each other, the handle 24 is fixed at the end 112 of the support shaft 21 through a pin, the handle 25 is fixed on the handle 24, when an operator rotates the handle 25 on the handle 24, the operator can drive the first bevel gear 22 to rotate, and the screw 12 can be driven to lift through the meshing of the first bevel gear 22 and the second bevel gear 23, so that the lifting and height adjusting purpose is achieved.

Referring to fig. 1 and 4, the compressing structure 3 includes a supporting disc 31, a supporting column 32, a sliding groove 33, a first spring 34, a sliding column 35, an end seat 36 and a compressing handle 37, the supporting disc 31 is fixed on the outer cylinder 1 through a bolt, the supporting column 32 is fixed on the supporting disc 31, the sliding groove 33 is arranged in the supporting column 32, the sliding column 35 is slidingly connected in the sliding groove 33, the first spring 34 is connected between the sliding column 35 and the groove wall of the sliding groove 33, the end seat 36 is fixed with the end 112 of the sliding column 35, the compressing handle 37 is rotationally connected with the end seat 36, a rotating shaft on the compressing handle 37 is eccentrically arranged, after the outer cylinder 1 is adjusted to a proper height, the compressing handle 37 can be rotated, the outer cylinder 1 and the inner cylinder 11 can be compressed, the sliding column 35 can be pulled by the first spring 34 in the sliding groove 33, the sliding column 35 and the end seat 36 can keep a certain tension, and the locking effect is improved.

Referring to fig. 3, 5 and 6, the lubrication structure 4 includes a cover 41, a storage box 42, a storage cavity 43, a groove 44, a plug 45, a second spring 46, a first flow path 471, a second flow path 472, a top column 48 and a notch 49, the cover 41 is clamped at the top end of the outer cylinder 1, the storage box 42 is fixed at one side of the cover 41 near the inner cylinder 11, the storage cavity 43 is arranged in the storage box 42, the groove 44 is arranged in the storage box 42 and is communicated with the storage cavity 43, the plug 45 is slidingly connected in the groove 44, the second spring 46 is connected between the end 112 of the plug 45 and the cavity wall of the storage cavity 43, the first flow path 471 is arranged in the plug 45, two ends of the first flow path 471 penetrate the plug 45, one end of the first flow path 471 is arranged at the central axis of the plug 45, the other end of the first flow channel 471 is arranged on the annular wall of the plug 45, the second flow channel 472 is arranged in the storage box 42, one end of the second flow channel 472 is communicated with the groove 44, the other end of the second flow channel 472 is arranged at the end 112 of the storage box 42, the top column 48 is fixed on the supporting shaft 21, the notch groove 49 is arranged in the storage box 42 for the top column 48 to swing and insert, when the supporting shaft 21 rotates, the supporting shaft can drive the top column 48 to swing into the notch groove 49, the plug 45 in the groove 44 is vertically pushed, the second spring 46 is compressed and deformed, the first flow channel 471 and the second flow channel 472 are communicated once, lubricating oil in the storage cavity 43 in the storage box 42 flows out through the first flow channel 471 and the second flow channel 472, and one-time point leakage lubrication is realized by means of the action of the primary power structure 2.

Referring to fig. 3, 5 and 6, a first pipe 421 is fixedly connected to the storage box 42, the first pipe 421 is connected to a second pipe 422 through a connecting sleeve 423 in a threaded manner, one end of the second pipe 422 is connected to a stopper in a threaded manner, and lubricating oil can be conveniently injected into the storage box 42 through the first pipe 421 and the second pipe 422 by using the first pipe 421 and the second pipe 422.

Referring to fig. 1 and 2, the outer cylinder 1 includes a middle portion 111 and two end portions 112, the two end portions 112 are fixed to the middle portion 111 by bolts, respectively, a polytetrafluoroethylene ring is provided on an outer ring of the middle portion, and the polytetrafluoroethylene ring on the middle portion 111 can reduce friction force of the inner cylinder 11 and the outer cylinder 1 sliding each other.

Referring to fig. 5 and 6, the screw 12 is rotatably connected to the outside of the bearing seat, the bearing seat is fixed with a sliding plate 121, a channel 122 for vertically sliding one end side of the sliding plate 121 is provided in the outer cylinder 1, and the guiding effect of the screw 12 when the outer cylinder 1 is lifted can be improved by using the cooperation of the sliding plate 121 and the channel 122, so that the sliding stability of the outer cylinder 1 is improved.

Referring to fig. 1 and 2, a connection post 131 is fixed at the top of the connection disc 13, the connection post 131 is clamped at the bottom end of the inner cylinder 11, the connection post 131 is fixedly connected with the inner cylinder 11 through a plurality of bolts, a protection sleeve 132 is arranged at the bottom end of the inner cylinder 11, connection fixation of the connection disc 13 and the inner cylinder 11 can be facilitated by using the connection post 131, and the protection sleeve 132 can shield the end 112.

Referring to fig. 7 and 8, a connecting plate 51 is fixed on the outer cylinder 11 through bolts, an overhanging ring 52 or a mounting plate 53 is fixed on the connecting plate, a plurality of through pin holes 521 are formed on the overhanging ring 52, and a plurality of flange holes 531 are formed on the mounting plate 53; by fixing the overhanging ring 52 on the connecting plate 51, the overhanging ring 52 can be clamped into an external rod for fixing, so that the stability of the outer cylinder 11 when being fixed outside the rod can be improved; when the mounting plate 53 is used, stability of the outer cylinder 11 when it is fixed to the plate member can be improved.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Jack device, comprising an outer cylinder (1), characterized in that it further comprises:

an inner cylinder (11) vertically slidingly connected with the outer cylinder (1);

a screw rod (12) connected in the outer cylinder (1) through a bearing in a rotating way, and the screw rod (12) is in threaded connection with the inner cylinder (11);

a power structure (2) for driving the screw (12) to rotate;

a connecting disc (13) fixed at the bottom end of the inner cylinder (11);

a pressing structure (3) arranged on the outer cylinder (1) and used for pressing the outer cylinder (1) to prevent the outer cylinder from sliding;

and a lubrication structure (4) which lubricates the screw (12) with the action of the power structure (2);

the power structure (2) comprises a supporting shaft (21), a first conical gear (22), a second conical gear (23), a handle rod (24) and a handle (25), wherein the supporting shaft (21) is rotationally connected in the outer cylinder (1) through a bearing, the first conical gear (22) is fixed at the top end of the screw rod (12), the second conical gear (23) is fixed outside the supporting shaft (21), the first conical gear (22) and the second conical gear (23) are meshed with each other, the handle rod (24) is fixed at the end part (112) of the supporting shaft (21) through a pin, and the handle (25) is fixed on the handle rod (24);

the lubricating structure (4) comprises a sealing cover (41), a storage box (42), a storage cavity (43), a groove (44), a plug column (45), a second spring (46), a first flow passage (471), a second flow passage (472), a top column (48) and a notch groove (49), wherein the sealing cover (41) is clamped at the top end of the outer cylinder (1), the storage box (42) is fixed at one side of the sealing cover (41) close to the inner cylinder (11), the storage cavity (43) is arranged in the storage box (42), the groove (44) is arranged in the storage box (42) and is communicated with the storage cavity (43), the plug column (45) is connected in the groove (44) in a sliding manner, the second spring (46) is connected between the end part (112) of the plug column (45) and the cavity wall of the storage cavity (43), the first flow passage (471) is arranged in the plug column (45), two ends of the first flow passage (471) penetrate through one side of the inner cylinder (11), the first flow passage (471) is arranged at the other end of the first flow passage (45) and the second flow passage (45) is arranged at the other end of the first flow passage (45), one end of the second flow channel (472) is communicated with the groove (44), the other end of the second flow channel (472) is arranged at the end part (112) of the storage box (42), the top column (48) is fixed on the support shaft (21), and the notch groove (49) is formed in the storage box (42) and is used for enabling the top column (48) to swing and insert.

2. A jack arrangement according to claim 1, wherein: the compression structure (3) comprises a supporting disc (31), a supporting column (32), a sliding groove (33), a first spring (34), a sliding column (35), an end seat (36) and a compression handle (37), wherein the supporting disc (31) is fixed on the outer cylinder (1) through bolts, the supporting column (32) is fixed on the supporting disc (31), the sliding groove (33) is formed in the supporting column (32), the sliding column (35) is slidingly connected in the sliding groove (33), the first spring (34) is connected between the sliding column (35) and the sliding groove (33), the end seat (36) is fixed with the end portion (112) of the sliding column (35), the compression handle (37) is rotationally connected with the end seat (36), and a rotating shaft on the compression handle (37) is eccentrically arranged.

3. A jack arrangement according to claim 1, wherein: the storage box (42) is fixedly connected with a first pipeline (421), the first pipeline (421) is connected with a second pipeline (422) through a connecting sleeve (423) in a threaded mode, and one end of the second pipeline (422) is connected with a sealing plug in a threaded mode.

4. A jack arrangement according to claim 1, wherein: the outer cylinder (1) comprises a middle part (111) and two end parts (112), wherein the two end parts (112) are respectively fixed with the middle part (111) through bolts, and a polytetrafluoroethylene ring is arranged on the outer ring of the middle part.

5. A jack arrangement according to claim 1, wherein: the screw rod (12) is rotationally connected to the outside of the bearing seat, a sliding plate (121) is fixed on the bearing seat, and a channel (122) for vertically sliding one end side of the sliding plate (121) is formed in the outer cylinder (1).

6. A jack arrangement according to claim 1, wherein: the top of connection pad (13) is fixed with spliced pole (131), spliced pole (131) joint is in inner tube (11) bottom, spliced pole (131) through a plurality of bolt with inner tube (11) are connected fixedly, the bottom of inner tube (11) is provided with protective sheath (132).

7. A jack arrangement according to claim 1, wherein: the outer cylinder (1) is fixedly provided with a connecting plate (51) through bolts, the connecting plate (51) is fixedly provided with an overhanging ring (52) or a mounting plate (53), the overhanging ring (52) is provided with a plurality of penetrating pin holes (521), and the mounting plate (53) is provided with a plurality of flange holes (531).