CN214243608U

CN214243608U - Suspension type screw jack

Info

Publication number: CN214243608U
Application number: CN202022772864.9U
Authority: CN
Inventors: 潘永德
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-09-21
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a suspension type screw jack, including base and shell, the upper end outside rigid coupling of base has the shell, the right-hand member of shell is provided with drive assembly, drive assembly includes branch, handle, spring, pawl, lagging, changes handle, ratchet, first base, third bearing and second base, the ratchet is located the right-hand member below of shell, the internal thread of second base links to each other there is branch, the third bearing is all installed to the inner wall left and right sides of lagging. This suspension type screw jack, structure scientific and reasonable, convenience safe in utilization, through the cooperation between pawl, ratchet, branch, first pivot, screw rod, a vertical section of thick bamboo, handle and the spring, pull the handle upwards earlier to with handle and pawl reversal 180, loosen the handle again, when carrying out the continuous reciprocating swing of branch once more, avoided needing to realize at other positions or through gravity drive that the push pedal withdrawal leads to unable through a repetitive motion realization flexible problem.

Description

Suspension type screw jack

Technical Field

The utility model relates to a jack technical field specifically is a suspension type screw jack.

Background

The screw jack is also called a mechanical jack, manual transmission is carried out through a screw pair, a screw rod or a nut sleeve is used as a jacking piece, a common screw jack supports a heavy object by means of screw thread self-locking action, the structure is simple, but the transmission efficiency is low, the return stroke is slow, the screw jack can support the heavy object for a long time, the maximum lifting capacity reaches 100 tons, the application is wide, although the screw jack can be used for supporting in the prior art, the problem that the retraction of a push plate cannot be realized through one driving action and one position due to the fact that the push plate is retracted in other positions or through gravity driving exists in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a suspension type screw jack to the needs that provide in solving above-mentioned background art realize the push pedal withdrawal at other positions or through gravity drive and lead to unable flexible problem of realization through a drive action and position.

In order to achieve the above object, the utility model provides a following technical scheme: a suspended screw jack comprises a base and a shell, wherein the shell is fixedly connected to the outer side of the upper end of the base, and a driving assembly is arranged at the right end of the shell;

the driving assembly comprises a support rod, a handle, a spring, a pawl, a sleeve plate, a rotating handle, a ratchet wheel, a first base, a third bearing and a second base;

the ratchet is located the right-hand member below of shell, the outer wall outside of ratchet is provided with the lagging, the right-hand member below rigid coupling of lagging has first base, the internal thread of first base links to each other has changeed the handle, the inside clearance fit in top of lagging has the pawl, the upper end rigid coupling of pawl has the handle, the outer wall of handle is provided with the spring, the both sides of spring closely laminate with lagging and pawl respectively, the upper end center rigid coupling of lagging has the second base, the internal thread of second base links to each other there is branch, the third bearing is all installed to the inner wall left and right sides of lagging.

Preferably, a one-way clamping structure is formed between the pawl and the ratchet wheel.

Preferably, a transmission assembly is arranged below the inner wall of the shell;

the transmission assembly comprises a first rotating shaft, a first bearing, a first bevel gear, a second bearing, a second bevel gear and a second rotating shaft;

the utility model discloses a bearing, including shell, first bevel gear, first bearing and lagging, first bevel gear is located the inner wall right side below of shell, first bevel gear's right-hand member rigid coupling has first pivot, the outer wall left side of first pivot is rotated with the shell through first bearing and is linked to each other, the outer wall right side of first pivot is rotated with the lagging through the third bearing and is linked to each other, the meshing of first bevel gear's left end below links to each other there is the second bevel gear, the lower extreme rigid coupling of second bevel gear has the second pivot, the outer wall of second pivot is rotated with the base through the second bearing and is linked to each other.

Preferably, the horizontal axis of the first bevel gear is consistent with the horizontal axis position of the ratchet wheel.

Preferably, a lifting assembly is arranged inside the inner wall of the shell;

the lifting assembly comprises a sliding block, a sliding chute, a screw rod and a vertical cylinder;

the screw rod rigid coupling is in the upper end center of second bevel gear, the outer wall top screw thread of screw rod links to each other has a vertical cylinder, the outer wall processing of vertical cylinder has a plurality of spouts, the inside top of spout all slides and links to each other has the slider, and is a plurality of the outer wall outside and the shell of slider are fixed continuous.

Preferably, a push plate is arranged above the shell, and the lower end of the push plate is fixedly connected with the upper end of the vertical cylinder.

Compared with the prior art, the beneficial effects of the utility model are that: this suspension type screw jack, structure scientific and reasonable, convenience safe in utilization:

through the pawl, the ratchet, branch, first pivot, the screw rod, the chimney, cooperation between handle and the spring, because one-way block ability between pawl and the ratchet, the reciprocal swing of branch can drive the ratchet and carry out one-way transmission, make the screw rod can drive the push pedal rebound, will correspond the article jack-up and play the supporting role, and when needs are gone back the journey process, upwards stimulate the handle earlier, and with handle and pawl reversal 180, loosen the handle again, when carrying out the continuous reciprocal swing of branch once more, can control screw rod antiport, make the push pedal move down, avoided needing to realize at other positions or through gravity drive that the push pedal withdrawal leads to can't realize flexible problem through a repetitive motion.

Drawings

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

FIG. 2 is a schematic structural view of the base, the first rotating shaft and the ratchet wheel in FIG. 1;

FIG. 3 is a schematic right-side view of the race plate, strut, and first pivot shaft of FIG. 1;

fig. 4 is a schematic view of the structure of fig. 3 at the strut, second base and pawl.

In the figure: 1. the lifting mechanism comprises a base, 2, a driving assembly, 201, a support rod, 202, a handle, 203, a spring, 204, a pawl, 205, a sleeve plate, 206, a rotating handle, 207, a ratchet wheel, 208, a first base, 209, a third bearing, 210, a second base, 3, a transmission assembly, 301, a first rotating shaft, 302, a first bearing, 303, a first bevel gear, 304, a second bearing, 305, a second bevel gear, 306, a second rotating shaft, 4, a lifting assembly, 401, a sliding block, 402, a sliding groove, 403, a screw rod, 404, a vertical cylinder, 5, a pushing plate, 6 and a shell.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a suspended screw jack comprises a base 1 and a shell 6, the shell 6 is fixedly connected with the outer side of the upper end of the base 1, a driving component 2 is arranged at the right end of the shell 6, the driving component 2 comprises a support rod 201, a handle 202, a spring 203, a pawl 204, a sleeve plate 205, a rotating handle 206, a ratchet wheel 207, a first base 208, a third bearing 209 and a second base 210, the ratchet wheel 207 is positioned below the right end of the shell 6, the sleeve plate 205 is arranged on the outer side of the outer wall of the ratchet wheel 207, the first base 208 is fixedly connected with the right end of the sleeve plate 205, the rotating handle 206 is connected with the inner thread of the first base 208, the rotating handle 206 can be rotatably installed or detached on the first base 208, the pawl 204 is in clearance fit with the upper part of the sleeve plate 205, the pawl 204 can move in the upper part of the sleeve plate 205, the handle 202 is fixedly connected with the upper end of the pawl 204, the outer wall of the handle 202 is provided with the spring 203, and the elastic coefficient K of the spring 203 is 500N/m, the two sides of the spring 203 are respectively tightly attached to the sleeve plate 205 and the pawl 204, the pawl 204 moves upwards to extrude the spring 203, the center of the upper end of the sleeve plate 205 is fixedly connected with a second base 210, the inner threads of the second base 210 are connected with a support rod 201, the left side and the right side of the inner wall of the sleeve plate 205 are provided with third bearings 209, and a one-way clamping structure is formed between the pawl 204 and the ratchet wheel 207.

The transmission component 3 is arranged below the inner wall of the housing 6, the transmission component 3 comprises a first rotating shaft 301, a first bearing 302, a first bevel gear 303, a second bearing 304, a second bevel gear 305 and a second rotating shaft 306, the first bevel gear 303 is arranged below the right side of the inner wall of the housing 6, the right end of the first bevel gear 303 is fixedly connected with the first rotating shaft 301, the left side of the outer wall of the first rotating shaft 301 is rotatably connected with the housing 6 through the first bearing 302, the first rotating shaft 301 can drive the first bevel gear 303 to rotate, the ratchet wheel 207 is fixedly connected with the first rotating shaft 301, the right side of the outer wall of the first rotating shaft 301 is rotatably connected with the sleeve plate 205 through the third bearing 209, the lower side of the left end of the first bevel gear 303 is engaged with the second bevel gear 305, the lower end of the second bevel gear 305 is fixedly connected with the second rotating shaft 306, the first bevel gear 303 can drive the second bevel gear 305 to rotate, the outer wall of the second rotating shaft 306 is rotatably connected with the base 1 through the second bearing 304, the horizontal axis of the first bevel gear 303 coincides with the horizontal axis position of the ratchet gear 207.

Inside lifting unit 4 that is provided with of shell 6's inner wall, lifting unit 4 includes slider 401, spout 402, screw rod 403 and vertical cylinder 404, the screw rod 403 rigid coupling is at the upper end center of second bevel gear 305, second bevel gear 305 can drive screw rod 403 and rotate, the outer wall top screw thread of screw rod 403 links up with vertical cylinder 404, vertical cylinder 404's outer wall processing has a plurality of spouts 402, the inside top of spout 402 all slides and links up with slider 401, the outer wall outside and the shell 6 of a plurality of sliders 401 are fixed continuous, the restriction that vertical cylinder 404 can be realized in the cooperation of slider 401 and spout 402 is rotated, shell 6's top is provided with push pedal 5, the lower extreme of push pedal 5 links to each other with vertical cylinder 404's upper end stationary phase.

When the suspended screw jack is needed, firstly, a user can place the jack to be used at a corresponding position, then the user can rotate the support rod 201 to be installed in the second base 210, the support rod 201 drives the sleeve plate 205 to swing back and forth manually, in the swinging process, due to the one-way clamping capacity between the pawl 204 and the ratchet wheel 207, the back and forth swinging of the support rod 201 can drive the ratchet wheel 207 to perform one-way transmission, in the embodiment, the pawl 204 can be continuously jacked up by the ratchet wheel 207 during counterclockwise rotation, then the pawl 204 can be clamped with the ratchet wheel 207 to drive the ratchet wheel 207 to rotate during clockwise rotation, at the moment, the first rotating shaft 301 can drive the screw rod to rotate through the first bevel gear 303 and the second bevel gear 305, so that the screw rod 403 can drive the vertical cylinder 404 and the push plate 5 to move upwards, and jack up a corresponding object to play a supporting role, when the return stroke process needs to be carried out, a user can firstly pull the handle 203 upwards to release the clamping between the pawl 204 and the ratchet wheel 207, and rotate the handle 203 and the pawl 204 reversely by 180 degrees, then loosen the handle, so that the directions of the inclined plane and the clamping groove of the pawl 204 can be changed, when the support rod 201 continuously swings back and forth again, the screw 403 can be controlled to rotate reversely, so that the push plate 5 moves downwards, the problem that the extension process cannot be realized through a repeated action due to the fact that the push plate needs to be driven at other positions to realize the return stroke process of the push plate is solved, when the support state is not reached due to long-length driving, for example, the push plate 5 of the jack does not reach the extension process of the support state and the retraction process after the support state is removed, at the moment, the push plate 5 of the jack usually needs to carry out a long-distance moving stroke and the driving is not laborious, and the user can firstly install the support rod 201 or firstly dismantle the support rod 201, the handle 206 is mounted within the first base 208 such that the user can manually rotate the handle 206 for a long distance.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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. The utility model provides a suspension type screw jack, includes base (1) and shell (6), the upper end outside rigid coupling of base (1) has shell (6), its characterized in that: the right end of the shell (6) is provided with a driving component (2);

the driving assembly (2) comprises a support rod (201), a handle (202), a spring (203), a pawl (204), a sleeve plate (205), a rotating handle (206), a ratchet wheel (207), a first base (208), a third bearing (209) and a second base (210);

ratchet (207) are located the right-hand member below of shell (6), the outer wall outside of ratchet (207) is provided with lagging (205), the right-hand member below rigid coupling of lagging (205) has first base (208), the internal thread of first base (208) links to each other and changes handle (206), the inside clearance fit in top of lagging (205) has pawl (204), the upper end rigid coupling of pawl (204) has handle (202), the outer wall of handle (202) is provided with spring (203), the both sides of spring (203) closely laminate with lagging (205) and pawl (204) respectively, the upper end center rigid coupling of lagging (205) has second base (210), the internal thread of second base (210) links to each other and has branch (201), third bearing (209) are all installed to the inner wall left and right sides of lagging (205).

2. A suspended jack screw as set forth in claim 1, wherein: a one-way clamping structure is formed between the pawl (204) and the ratchet wheel (207).

3. A suspended jack screw as set forth in claim 1, wherein: a transmission assembly (3) is arranged below the inner wall of the shell (6);

the transmission assembly (3) comprises a first rotating shaft (301), a first bearing (302), a first bevel gear (303), a second bearing (304), a second bevel gear (305) and a second rotating shaft (306);

first bevel gear (303) are located the inner wall right side below of shell (6), the right-hand member rigid coupling of first bevel gear (303) has first pivot (301), the outer wall left side of first pivot (301) is rotated through first bearing (302) and is linked to each other with shell (6), the outer wall right side of first pivot (301) is rotated through third bearing (209) and is linked to each other with lagging (205), the left end below meshing of first bevel gear (303) links to each other second bevel gear (305), the lower extreme rigid coupling of second bevel gear (305) has second pivot (306), the outer wall of second pivot (306) is rotated through second bearing (304) and base (1) and is linked to each other.

4. A suspended jack screw as set forth in claim 3 wherein: the horizontal axis of the first bevel gear (303) is consistent with the horizontal axis position of the ratchet wheel (207).

5. A suspended jack screw as set forth in claim 1, wherein: a lifting component (4) is arranged inside the inner wall of the shell (6);

the lifting assembly (4) comprises a sliding block (401), a sliding groove (402), a screw rod (403) and a vertical cylinder (404);

the screw rod (403) is fixedly connected to the center of the upper end of the second bevel gear (305), a vertical cylinder (404) is connected to the upper portion of the outer wall of the screw rod (403) in a threaded mode, a plurality of sliding grooves (402) are machined in the outer wall of the vertical cylinder (404), sliding blocks (401) are connected to the upper portion of the inner portion of each sliding groove (402) in a sliding mode, and the outer side of the outer wall of each sliding block (401) is fixedly connected with the shell (6).

6. A suspended jack screw as set forth in claim 1, wherein: the upper side of shell (6) is provided with push pedal (5), the lower extreme of push pedal (5) is fixed continuous with the upper end of vertical cylinder (404).