Overturn-preventing hydraulic jack

Abstract

The utility model discloses an anti-overturning hydraulic jack which comprises a jack body, a plurality of sliding grooves are formed in the outer wall of a hydraulic cylinder of the jack body, the sliding grooves are formed in the axial direction of the hydraulic cylinder, and the sliding grooves are formed in the circumferential direction of the hydraulic cylinder at intervals. Lock holes are formed in the groove walls of the two opposite sides of the lower end of the sliding groove; the supporting assembly comprises an upper hinge plate and a lower hinge plate, a sliding block is hinged to the upper end of the upper hinge plate, the sliding block is arranged in the sliding groove in a sliding mode, locking blocks are elastically installed on the two opposite sides of the sliding block and abut against the groove wall of the sliding groove, the upper end of the lower hinge plate is hinged to the lower end of the upper hinge plate, and the lower end of the lower hinge plate is hinged to the lower end of the lower hinge plate. The lower end of the lower hinge plate is hinged to the bottom of the hydraulic cylinder; and the elastic clamping piece is mounted on the outer wall of the hydraulic cylinder and detachably clamped on the upper hinge plate. The hydraulic jack solves the problems that an existing hydraulic jack is small in chassis, unstable in gravity center and prone to toppling over.

Description

Technical Field

[0001] This utility model relates to the field of jack technology, specifically to an anti-tipping hydraulic jack. Background Technology

[0002] Hydraulic jacks are jacks that use plungers or hydraulic cylinders as rigid lifting components. They are characterized by their compact structure, stable operation, large lifting force, and self-locking capability. Hydraulic jacks have a strong lifting capacity; heavy-duty hydraulic jacks can lift more than 100 tons.

[0003] When a hydraulic jack is supporting a heavy object, its small base and high cylinder may cause the piston rod to become unstable, leading to the jack tipping over and potentially injuring the operator or the object being supported. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, an anti-tipping hydraulic jack is provided to solve the problem that existing hydraulic jacks have small chassis, unstable center of gravity, and are prone to tipping over.

[0005] To achieve the above objectives, an anti-tipping hydraulic jack is provided, comprising:

[0006] The jack body has multiple sliding grooves formed on the outer wall of the hydraulic cylinder of the jack body. The sliding grooves are arranged along the axial direction of the hydraulic cylinder and the multiple sliding grooves are spaced apart along the circumferential direction of the hydraulic cylinder. Locking holes are opened on the groove walls on opposite sides at the lower end of the sliding grooves.

[0007] The support assembly includes an upper hinge plate and a lower hinge plate. The upper end of the upper hinge plate is hinged to a slider, which slides in the slide groove. Locking blocks are elastically installed on opposite sides of the slider, and the locking blocks abut against the groove wall of the slide groove. The upper end of the lower hinge plate is hinged to the lower end of the upper hinge plate, and the lower end of the lower hinge plate is hinged to the bottom of the hydraulic cylinder.

[0008] An elastic clamping member is installed on the outer wall of the hydraulic cylinder and detachably clamps the upper hinge plate. After the upper hinge plate is removed from the elastic clamping member, the slider slides down to the lower end of the slide groove under the weight of the support assembly so that one end of the locking block is inserted into the locking hole. The upper hinge plate, the lower hinge plate, and the hydraulic cylinder form a right-angled triangular support structure.

[0009] Furthermore, the number of the grooves is four.

[0010] Furthermore, the four grooves are equally spaced along the circumferential direction of the hydraulic cylinder.

[0011] Furthermore, the slider has through holes extending through opposite sides of the slider, and locking blocks are movably disposed within both ends of the through holes, with a support spring connecting the two locking blocks.

[0012] Furthermore, a strip-shaped hole communicating with the through hole is provided on the side of the slider away from the bottom of the groove. The strip-shaped hole is arranged along the length direction of the through hole. The other end of the locking block is connected to a toggle rod, which slides in the strip-shaped hole.

[0013] Furthermore, the elastic clamping member includes two elastic clamping plates arranged opposite each other. The elastic clamping plates have a head end close to the hydraulic cylinder and a tail end away from the hydraulic cylinder. The distance between the two elastic clamping plates gradually increases from the middle of the elastic clamping plates toward the head and tail ends of the elastic clamping plates.

[0014] The beneficial effects of this utility model are that the anti-tipping hydraulic jack of this utility model, through the right-angled triangular support structure formed by the support component after it is opened, on the one hand, increases the contact area between the bottom of the hydraulic cylinder and the ground, so as to prevent the hydraulic jack from tipping over during use; on the other hand, when the hydraulic jack is not in use, the support component is folded up and fits against the outer wall of the hydraulic cylinder of the jack, which does not occupy a large space, making the hydraulic jack easy to store and carry. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the anti-tipping hydraulic jack according to an embodiment of the present invention.

[0017] Figure 2 for Figure 1 The sectional view at point AA.

[0018] Figure 3 This is a top view of the anti-tipping hydraulic jack according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the support component in the extended state according to an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the slider structure according to an embodiment of the present invention.

[0021] Figure 6 This is a cross-sectional view of the slider in an embodiment of the present invention.

[0022] Figure label:

[0023] Hydraulic cylinder 1, slide groove 10, lock hole 100;

[0024] Support assembly 2, upper hinge plate 21, lower hinge plate 22, slider 23, locking block 24, actuating rod 241, top support spring 25;

[0025] 3. Elastic clamping element. Detailed Implementation

[0026] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Reference Figures 1 to 6 As shown, this utility model provides an anti-tipping hydraulic jack, including: a jack body, a support assembly 2, and an elastic clamping component 3.

[0029] In this embodiment, the jack body is a hydraulic jack. Hydraulic jacks are existing technology, and their specific structure will not be described in detail here. It should be noted that the outer wall of the hydraulic cylinder 1 of the jack body has multiple sliding grooves 10. The sliding grooves 10 are arranged along the axial direction of the hydraulic cylinder 1. The multiple sliding grooves 10 are spaced apart along the circumferential direction of the hydraulic cylinder 1. Locking holes 100 are provided on the groove walls on opposite sides at the lower end of the sliding grooves 10.

[0030] In a preferred embodiment, the number of grooves 10 is four.

[0031] In this embodiment, four slide grooves 10 are equally spaced along the circumferential direction of the hydraulic cylinder 1. The number of support assemblies is adapted to the number of slide grooves. Each slide groove is equipped with one support assembly.

[0032] Specifically, the support assembly 2 includes an upper hinge plate 21 and a lower hinge plate 22. A slider 23 is hinged to the upper end of the upper hinge plate 21. In this embodiment, the upper hinge plate is hinged to the slider via a hinge shaft. The hinge shaft is arranged horizontally, allowing the upper hinge plate to rotate up and down around the hinge shaft.

[0033] The slider 23 is slidably disposed in the slide groove 10. The width of the slider is adapted to the width of the slide groove. The slider can slide along the length of the slide groove. Locking blocks 24 are elastically installed on opposite sides of the slider 23. The locking blocks 24 abut against the wall of the slide groove 10.

[0034] The upper end of the lower hinge plate 22 is hinged to the lower end of the upper hinge plate 21. The lower end of the lower hinge plate 22 is hinged to the bottom of the hydraulic cylinder 1. In this embodiment, the upper and lower ends of the lower hinge plate are respectively hinged to the upper hinge plate and the hydraulic cylinder via hinge shafts. The hinge shafts on the upper and lower hinge plates are arranged in the same direction.

[0035] The elastic clamping member 3 is installed on the outer wall of the hydraulic cylinder 1. The elastic clamping member 3 is detachably clamped to the upper hinge plate 21 so that the upper hinge plate fits against the outer wall of the hydraulic cylinder.

[0036] Combination Figure 2 and Figure 4 As shown, after the upper hinge plate 21 is removed from the elastic clamping member 3, the slider 23 slides downward to the lower end of the slide groove 10 under the weight of the support assembly 2, so that one end of the locking block 24 is inserted into the locking hole 100. The upper hinge plate 21, the lower hinge plate 22, and the hydraulic cylinder 1 form a right-angled triangular support structure. The right-angled triangular support structure formed after the support assembly is opened increases the contact area between the bottom of the hydraulic cylinder and the ground to prevent the hydraulic jack from tipping over during use. On the other hand, when the hydraulic jack is not in use, the support assembly is folded up and fits against the outer wall of the hydraulic cylinder of the jack, without occupying a large space, making the hydraulic jack easy to store and carry.

[0037] Combination Figure 5 and Figure 6 As shown, the slider 23 has through holes extending through opposite sides of the slider 23. Locking blocks 24 are movably disposed within both ends of the through holes. A support spring 25 connects the two locking blocks 24.

[0038] In a preferred embodiment, the slider 23 has a strip-shaped hole communicating with the through hole on the side away from the bottom of the groove 10. The strip-shaped hole is arranged along the length of the through hole. The other end of the locking block 24 is connected to a toggle lever 241. The toggle lever slides in the strip-shaped hole.

[0039] When the hydraulic jack needs to be retracted after use, press the two levers together to bring them closer together, causing the locking block to retract into the through hole of the slider. Then push the slider upward to make the upper hinge plate embedded in the elastic clamping plate.

[0040] In this embodiment, the elastic clamping member 3 includes two elastic clamping plates disposed opposite each other. The elastic clamping plates have a head end close to the hydraulic cylinder 1 and a tail end away from the hydraulic cylinder 1. The distance between the two elastic clamping plates gradually increases from the middle of the elastic clamping plates towards the head and tail ends of the elastic clamping plates.

[0041] Preferably, the elastic clamp is made of nylon. The nylon clamp is S-shaped.

[0042] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An anti-overturning hydraulic jack, characterized by, The jack body is provided with a plurality of sliding grooves formed on the outer wall of the hydraulic cylinder, the sliding grooves are arranged along the axial direction of the hydraulic cylinder, and the plurality of sliding grooves are arranged at intervals along the circumferential direction of the hydraulic cylinder. The supporting assembly comprises an upper hinged plate and a lower hinged plate, the upper end of the upper hinged plate is hingedly connected with a sliding block, the sliding block is slidably arranged in the sliding groove, elastic locking blocks are arranged on the opposite sides of the sliding block, the locking blocks abut against the groove walls of the sliding groove, the upper end of the lower hinged plate is hingedly connected with the lower end of the upper hinged plate, and the lower end of the lower hinged plate is hingedly connected with the bottom of the hydraulic cylinder. The elastic clamping piece is arranged on the outer wall of the hydraulic cylinder and detachably clamps the upper hinged plate, after the upper hinged plate is detached from the elastic clamping piece, the sliding block slides downward to the lower end of the sliding groove under the gravity of the supporting assembly to allow one end of the locking block to be inserted into the lock hole, and the upper hinged plate, the lower hinged plate and the hydraulic cylinder form a right-angled triangle support structure. The number of the sliding grooves is four.

2. The anti-roll hydraulic jack of claim 1, wherein, The four sliding grooves are arranged at equal intervals along the circumferential direction of the hydraulic cylinder.

3. The anti-roll hydraulic jack of claim 2, wherein, The sliding block is provided with a through hole penetrating through the opposite sides of the sliding block, the locking blocks are movably arranged in the through hole at both ends of the through hole, and a supporting spring is connected between the two locking blocks.

4. The anti-roll hydraulic jack of claim 1, wherein, The side of the sliding block away from the groove bottom of the sliding groove is provided with a strip-shaped hole communicated with the through hole, the strip-shaped hole is arranged along the length direction of the through hole, the other end of the locking block is connected with a push rod, and the push rod is slidably arranged in the strip-shaped hole.

5. The anti-roll hydraulic jack of claim 4, wherein, The elastic clamping piece comprises two oppositely arranged elastic clamping plates, the elastic clamping plates have head ends close to the hydraulic cylinder and tail ends away from the hydraulic cylinder, and the distance between the two elastic clamping plates gradually increases from the middle part of the elastic clamping plates to the head and tail ends of the elastic clamping plates.

6. The anti-roll hydraulic jack of claim 1, wherein, ​

Images