CN219991022U - Spacing jack - Google Patents

Abstract

The utility model discloses a limiting jack, which comprises a jack body, wherein the jack body comprises two wallboards, a lifting arm and a hydraulic oil pump, wherein the lifting arm and the hydraulic oil pump are arranged between the two wallboards, and a limiting surface is arranged at the bottom of a pressing hand; the rear parts of the two wallboards are provided with cover boards, a limiting device is arranged between the cover boards and the press handle, the limiting device comprises a limiting rod and a press handle limiting block arranged on the limiting rod, the press handle limiting block is arranged on the limiting rod, and the end parts of the limiting rod are pivoted between the two wallboards, so that the press handle limiting block rotates between a first position and a second position; the pressing hand limiting block is provided with a long limiting end and a short limiting end which are opposite; the long limiting end part is clamped with the rear part of the cover plate at the first position, and the short limiting end part is separated from the press hand; the short limiting end part is connected with the cover plate in a clamping way at the second position, and the long limiting end part is in abutting connection with the limiting surface of the press hand. The beneficial effects of the utility model are as follows: the lifting jack can realize the limit locking of the pressing hand, so that the overall height of the lifting jack is reduced, the occupied space is small, and the transportation is convenient.

Description

Spacing jack

Technical Field

The utility model relates to a limiting jack, and belongs to the field of maintenance.

Background

The jack is a small and light lifting device for lifting a weight in a stroke through a top tray, and is widely used in mechanical maintenance work. In the existing jack, the bottom of a press handle is provided with a roller, the roller is in rolling connection with the top end face of a pump core of the hydraulic oil pump, and the press handle is driven to swing through the swinging of a handle to drive the pump core to move up and down, so that the jack is driven; however, when not in use, the press is tilted upwards, so that the overall height of the jack is increased, and the transport space of the jack is increased.

Disclosure of Invention

In order to solve the problems, the utility model provides a limiting jack capable of realizing locking limiting of a press handle and small in occupied space.

The technical scheme adopted by the utility model is as follows:

the limit jack comprises a jack body, wherein the jack body comprises two parallel wallboards which are oppositely arranged, a lifting arm and a hydraulic oil pump which are arranged between the two wallboards, a front wheel and a rear wheel are respectively arranged at the front end and the rear end of the wallboards, the rear end of the lifting arm is pivoted at the rear part of the wallboards through a lifting arm shaft, and a tray is arranged at the front end of the lifting arm; the hydraulic oil pump is arranged at the rear parts of the two wallboards, and the power end part of the hydraulic oil pump is hinged with the lifting arm; the rear parts of the two wallboards are pivoted with a press handle, the upper part of the press handle is provided with a handle, the bottom of the press handle is provided with a roller, and the roller is in rolling connection with the top end face of the pump core of the hydraulic oil pump, and the hydraulic oil pump is characterized in that: the bottom of the press handle is provided with a limiting surface; the rear parts of the two wallboards are provided with cover boards, a limiting device is arranged between the cover boards and the press handle, the limiting device comprises a limiting rod and a press handle limiting block arranged on the limiting rod, the press handle limiting block is arranged on the limiting rod, and the end part of the limiting rod is pivoted between the two wallboards through a pull rod screw assembly, so that the press handle limiting block rotates between a first position and a second position; the pressing hand limiting block is provided with a long limiting end and a short limiting end which are opposite to each other; the long limiting end part of the press handle limiting block at the first position is clamped with the rear part of the cover plate, and the short limiting end part of the press handle limiting block is separated from the press handle; the short limiting end part of the press handle limiting block at the second position is connected with the cover plate in a clamping mode, and the long limiting end part of the press handle limiting block is in abutting connection with the limiting surface of the press handle.

Further, the rear part of the cover plate is provided with a limit groove.

Further, the long limiting end part is provided with a plurality of grooves.

Further, the pull rod screw assembly comprises a pull rod screw and a protection ring, and the protection ring is sleeved at the end part of the limit rod; the limiting rod is pivoted on the wallboard through a pull rod screw.

The pressing hand limiting block is hinged between the two wallboards through the limiting rod, so that the pressing hand limiting block is rotatable, convenient to use and store and capable of preventing loss. The stopper is by the rotation of the spacing groove restriction stopper on the apron to when the snapper stopper is in the first position, snapper stopper upset, long spacing tip leans on in the spacing groove of apron, and the snapper stopper is in steady state, and short spacing tip is not contacted with the snapper this moment, and the jack is in the state of use, and snapper stopper can not hinder the normal use of snapper promptly. When the jack needs to be folded, the pressing hand limiting block is required to be switched from the first position to the second position, the pressing hand is pressed by the hand, the pressing hand is enabled to rotate clockwise to the bottom, the pressing hand limiting block is stirred again to rotate clockwise until the pressing hand limiting block rotates to the second position, at the moment, the short limiting end part of the pressing hand limiting block is clamped in the limiting groove of the cover plate, and the long limiting end part of the pressing hand limiting block is propped against the limiting surface at the bottom of the pressing hand, so that the pressing hand limiting block is limited to rotate anticlockwise. At this time, the height of the whole jack becomes lowest, the jack is convenient to store, and the occupied area is minimum. When the press handle limiting block is required to be converted from the second position to the first position, the press handle is required to be pressed by hands, and the press handle limiting block is rotated anticlockwise to the maximum limiting position of the cover plate limiting groove. Then the press hand is released to make the jack in the use state, and the jack can be normally used at the moment.

The beneficial effects of the utility model are as follows: the lifting jack can realize the limit locking of the pressing hand, so that the overall height of the lifting jack is reduced, the occupied space is small, and the transportation is convenient.

Drawings

Fig. 1 is a structural view of the jack of the present utility model in a use state (the knock stopper is in the second position).

Fig. 2 is a partial enlarged view of fig. 1.

Fig. 3 is a top view of the jack of the present utility model in use (the thumb rest in the second position).

Fig. 4 is a structural view of the jack of the present utility model in a stored state (the knock stopper is in the first position).

Fig. 5 is a plan view of the jack of the present utility model in a stored state (the knock stopper is in the first position).

Detailed Description

The following describes the detailed implementation of the embodiments of the present utility model with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The utility model will be described in detail below with reference to the drawings in connection with exemplary embodiments.

The utility model relates to a limit jack, which comprises a jack body 1, wherein the jack body 1 comprises two parallel opposite wallboards 11, a lifting arm 13 and a hydraulic oil pump 12, wherein the lifting arm 13 and the hydraulic oil pump 12 are arranged between the two wallboards 11, the front end and the rear end of the wallboards 11 are respectively provided with a front wheel 18 and a rear wheel 19, the rear end of the lifting arm 13 is pivoted at the rear part of the wallboards 11 through a lifting arm shaft, and the front end of the lifting arm 13 is provided with a tray 14; the hydraulic oil pump 12 is arranged at the rear parts of the two wallboards 11, and the power end part of the hydraulic oil pump 12 is hinged with the lifting arm 13; the rear parts of the two wallboards 11 are pivoted with a press handle 16, the upper part of the press handle 16 is provided with a handle, the bottom of the press handle 16 is provided with a roller 162, the roller 162 is in rolling connection with the top end surface of the pump core of the hydraulic oil pump 12, and the bottom of the press handle 16 is provided with a limit surface 161; the rear parts of the two wallboards 11 are provided with cover plates 17, a limiting device 2 is arranged between the cover plates 17 and the press handle 16, the limiting device 2 comprises a limiting rod 21 and a press handle limiting block 23 arranged on the limiting rod 21, the press handle limiting block 23 is arranged on the limiting rod 21, and the end part of the limiting rod 21 is pivoted between the two wallboards 11 through a pull rod screw assembly 22 so that the press handle limiting block 23 rotates between a first position and a second position; the pressing hand limiting block 23 is provided with a long limiting end 231 and a short limiting end 232 which are opposite to each other; the long limit end 231 of the press handle limit block 23 is clamped with the rear part of the cover plate 17, and the short limit end 232 is separated from the press handle 16; the short limit end 232 of the press handle limit block 23 is clamped with the cover plate 17 at the second position, and the long limit end 231 of the press handle limit block 23 is in abutting connection with the limit surface 161 of the press handle 16.

In some embodiments of the present utility model, the rear portion of the cover 17 is provided with a limit groove 171.

In some embodiments of the present utility model, the long limiting end 231 is provided with a plurality of grooves 233.

In some embodiments of the present utility model, the handle 16 includes a mounting portion 163 and a handle connecting portion 164 connected to each other, the mounting portion 163 is pivotally connected to the rear portion of the wall board by a handle screw 165, one end of the mounting portion 163 away from the handle connecting portion 164 is provided with a groove, a roller 162 is mounted in the groove, the groove bottom of the groove is provided with a limiting surface 161 for matching with the handle limiting block 23, a cylindrical cavity extending from one end away from the mounting portion 163 to the middle is provided in the handle connecting portion 164, one end of the cylindrical cavity away from the mounting portion is open, an inner wall of the cylindrical cavity is provided with an inner thread, the handle is inserted into the cylindrical cavity, and an outer thread on a side wall of the handle is in threaded connection with the inner thread of the cylindrical cavity (not shown in the handle drawing).

In some embodiments of the present utility model, the pull rod screw assembly 22 includes a pull rod screw 221 and a protection ring 222, where the protection ring 222 is sleeved on the end of the limit rod 21; the limiting rod 21 is pivoted to the wall plate 11 by a pull rod screw 221.

The press handle limiting block 23 is hinged between the two wallboards 11 through the limiting rod 21, so that the press handle limiting block is rotatable, convenient to use and store and capable of preventing loss. The rotation of the snap stopper 23 is limited by the limit groove 171 on the cover plate 17 by the snap stopper 23, and when the snap stopper 23 is at the first position, the snap stopper 23 is turned over, the long limit end 231 leans against the limit groove 171 of the cover plate 17, the snap stopper 23 is in a stable state, the short limit end 232 is not contacted with the snap 16 at this time, and the jack is in a use state, i.e. the snap stopper 23 does not interfere with the normal use of the snap 16. When the jack needs to be retracted, the press handle 16 is pressed by hand when the press handle stopper 23 is required to be converted from the first position to the second position, the press handle 16 is rotated to the bottom clockwise, the press handle stopper 23 is then stirred to rotate clockwise until the press handle stopper 23 is rotated to the second position, at this time, the short limit end 232 of the press handle stopper 23 is clamped in the limit groove 171 of the cover plate 17, and the long limit end 231 of the press handle stopper 23 abuts against the limit surface 161 at the bottom of the press handle 16, so that the press handle stopper 23 limits the press handle 16 to rotate anticlockwise. At this time, the height of the whole jack becomes lowest, the jack is convenient to store, and the occupied area is minimum. When the thumb press stopper 23 is required to be shifted from the second position to the first position, the thumb press 16 is manually pressed to rotate the thumb press stopper 23 counterclockwise to the maximum limit position of the limit groove 171 of the cover 17. The press handle 16 is released to make the jack in a use state, so that the jack can be normally used.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (4)

1. The utility model provides a limit jack, includes jack body (1), jack body (1) include two parallel relative arrangement's wallboard (11) and set up lifting arm (13) between two wallboards (11), hydraulic oil pump (12), front and back end of wallboard (11) are equipped with front wheel (18) and rear wheel (19) respectively, the rear end of lifting arm (13) is through lifting arm axle pin joint in the rear portion of wallboard (11), the front end of lifting arm (13) is equipped with tray (14); the hydraulic oil pump (12) is arranged at the rear parts of the two wallboards (11), and the power end part of the hydraulic oil pump (12) is hinged with the lifting arm (13); the rear parts of the two wallboards (11) are pivoted with a press handle (16), the upper part of the press handle (16) is provided with a handle, the bottom of the press handle (16) is provided with a roller (162), and the roller (162) is in rolling connection with the top end face of a pump core of the hydraulic oil pump (12), and is characterized in that: the bottom of the press handle (16) is provided with a limit surface (161); the rear parts of the two wallboards (11) are provided with cover plates (17), a limiting device (2) is arranged between the cover plates (17) and the press handles (16), the limiting device (2) comprises a limiting rod (21) and press handle limiting blocks (23) arranged on the limiting rod (21), the press handle limiting blocks (23) are arranged on the limiting rod (21), and the end parts of the limiting rod (21) are pivoted between the two wallboards (11) through pull rod screw assemblies (22) so that the press handle limiting blocks (23) rotate between a first position and a second position; the press handle limiting block (23) is provided with a long limiting end (231) and a short limiting end (232) which are opposite to each other; the long limit end (231) of the press handle limit block (23) at the first position is clamped with the rear part of the cover plate (17), and the short limit end (232) is separated from the press handle (16); a short limit end (232) of the press handle limit block (23) at the second position is clamped with the cover plate (17), and a long limit end (231) of the press handle limit block (23) is in abutting connection with a limit surface (161) of the press handle (16).

2. A jack as claimed in claim 1 wherein: the rear part of the cover plate (17) is provided with a limit groove (171).

3. A jack as claimed in claim 2 wherein: the long limiting end part (231) is provided with a plurality of grooves (233).

4. A jack as claimed in claim 3 wherein: the pull rod screw assembly (22) comprises a pull rod screw (221) and a protection ring (222), and the protection ring (222) is sleeved at the end part of the limit rod (21); the limiting rod (21) is pivoted on the wallboard (11) through a pull rod screw (221).