High-stability hydraulic jack with safety valve

Abstract

The utility model discloses a high-stability hydraulic jack with a safety valve, and relates to the technical field of hydraulic jacks. The top end of the base is provided with a jack, the surface of the jack is sleeved with a fixing ring, the bottom end of the fixing ring is connected with a fixing rod, the fixing rod is connected with the surface of the base, the sliding groove is formed in the base, the side wall of the sliding groove is provided with a limiting hole, the connecting block is inserted into the sliding groove, and the side wall of the connecting block is connected with an expansion block. The expansion blocks are connected with screws, and the bottom ends of the screws are connected with fixing pieces. The jack can be effectively prevented from shaking or inclining in the working process through the fixing ring and the fixing rod, the overall stability is enhanced, when the jack works on the uneven ground through the screw rod and the fixing piece, the device can stably make contact with the ground by adjusting the height of the fixing piece, and therefore the working stability of the jack is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydraulic jack technical field, concretely relates to a high stability hydraulic jack with safety valve. BACKGROUND

[0002] The jack refers to the rigid lifting piece as the working device, through the small stroke of the top support or the bottom support claw, the light and small hoisting equipment of the heavy object, mainly used in factory and transportation fields, the structure is light and solid, flexible and reliable, one person can carry and operate, the existing hydraulic jack is difficult to use stably and cannot lift the heavy object smoothly when the ground strength is insufficient.

[0003] The Chinese patent with the publication number CN218025194U discloses a hydraulic jack with a safety valve, which first moves the hydraulic device to the side of the heavy object, holds the cross bar with the hand, pulls out the plate frame from the bottom of the base, takes out four extension plates from the plate frame, and inserts the four extension plates into the insertion slot through the insertion block, so as to increase the stress area between the base and the ground, then takes down four telescopic rods from the base, rotates the screw sleeve on the telescopic rod, and tightly inserts the two ends of the telescopic rod into the outer side wall of the fixed ring and the insertion hole at the top of the extension plate, at this time, the hydraulic device is moved to the bottom of the heavy object, the top of the jack is aligned with the stress point at the bottom of the heavy object, the piston rod in the jack is moved up by pressing the handle until the piston rod contacts the bottom of the heavy object, and then the heavy object is lifted, but the extension plate needs to be taken out and installed every time, and the extension plate needs to be disassembled after use, which is troublesome, and the device can only be used on flat ground and cannot ensure the stability of the device on uneven ground.

[0004] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0005] The utility model solves the problems in the background art.

[0006] To solve the above technical problems, the basic idea of the technical scheme of the utility model is:

[0007] The utility model provides a hydraulic jack with safety valve with high stability, including base, the top of base is equipped with jack, the surface of jack is sleeved with fixed ring, the bottom of fixed ring is connected with fixed link, fixed link is connected with the surface of base, sliding slot, which is opened in the base, the side wall of sliding slot is provided with a limiting hole, a connecting block is inserted into the sliding slot, the side wall of connecting block is connected with an expansion block, the expansion block is connected with a screw rod, the bottom of screw rod is connected with a fixed sheet, the inner chamber is opened in the connecting block, a fixed shaft is fixedly installed in the inner chamber, the surface of fixed shaft is connected with an elastic element, the bottom side wall of elastic element is connected with a limiting column.

[0008] Optionally, the sliding slot is provided with four, which are located in the front, rear, left and right side walls of the base, and the connecting block is inserted into the sliding slot.

[0009] Optionally, the front and rear inner side walls of the sliding slot are provided with limiting holes, and the inner wall of the limiting hole is arc-shaped.

[0010] Optionally, the screw rod penetrates the expansion block and is threadedly connected with the expansion block, and the bottom of the screw rod is fixedly connected with the fixed sheet.

[0011] Optionally, the front and rear side walls of the connecting block are provided with through holes, and the limiting column penetrates the through hole.

[0012] Optionally, the elastic element is V-shaped, and the bottom of the two side walls is connected with the limiting column, and the two side walls of the elastic element are elastic.

[0013] Optionally, the fixed shaft is installed at the right end of the inner chamber, the top of the elastic element is sleeved on the surface of the fixed shaft, and the top is fixedly connected with the fixed shaft.

[0014] After the above technical scheme is adopted, the utility model has the following advantages compared with the prior art, of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below:

[0015] 1. By setting the fixed ring and the fixed link, the fixed ring is sleeved on the jack, and then the fixed link is connected with the base, forming a stable triangular structure, effectively preventing the jack from shaking or tilting during work, greatly enhancing the overall stability.

[0016] 2. By setting the elastic element, the limiting column and the limiting hole, when the expansion block needs to be moved, the expansion block is pulled, the expansion block drives the connecting block to move, at this time, the limiting column in the connecting block moves along the inner wall of the sliding slot and is limited by the inner wall of the sliding slot to compress the elastic element, when the limiting column moves to the limiting hole, the limiting column loses the limitation of the inner wall of the sliding slot, at this time, the limiting column is inserted into the limiting hole under the action of the elastic element, thereby playing a fixing and limiting role, facilitating the adjustment of the expansion block by the staff.

[0017] 3、By setting the screw and fixed sheet, clockwise or counterclockwise rotation of the screw, the screw can be realized in the expansion block or down, so as to realize the adjustment of the fixed sheet height, when uneven ground work, by adjusting the fixed sheet height can also make the device and ground stable contact, so as to ensure the stability of the jack work.

[0018] The specific embodiments of the utility model will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] The following description of the drawings is only some embodiments, for those skilled in the art, without the premise of creative labor, can also obtain other drawings according to these drawings. In the drawings

[0020] In the drawings:

[0021] Figure 1 It is the whole structure schematic view;

[0022] Figure 2 It is the structure schematic view after pulling the connecting block;

[0023] Figure 3 It is the base internal structure schematic view;

[0024] Figure 4 It is the connecting block internal structure schematic view;

[0025] Figure 5 It is the elastic piece structure schematic view.

[0026] In the drawings, the component list represented by each sign is as follows:

[0027] 1, base; 2, jack; 3, expansion block; 4, screw; 5, fixed sheet; 6, fixed ring; 7, fixed rod; 8, connecting block; 9, sliding slot; 10, limit hole; 11, limit column; 12, fixed shaft; 13, elastic piece; 14, inner cavity.

[0028] It should be noted that these drawings and textual description are not intended to limit the concept range of the utility model in any way, but by referring to specific embodiments for the person skilled in the art to illustrate the concept of the utility model. DETAILED DESCRIPTION

[0029] The utility model will be further described in detail below with reference to the drawings.

[0030] Please refer to Figures 1-5As shown, in this embodiment provides a high stability with safety valve hydraulic jack, including: base 1, the top of base 1 is provided with jack 2, the surface of jack 2 is provided with fixing ring 6, the bottom of fixing ring 6 is connected with fixing rod 7, fixing rod 7 is connected with the surface of base 1, the stability of jack 2 can be improved by fixing ring 6 and fixing rod 7, sliding groove 9, the limit hole 10 is opened in the side wall of sliding groove 9, the connecting block 8 is inserted and installed in the sliding groove 9, the expansion block 3 is connected with the side wall of connecting block 8, the sliding groove 9 can make the connecting block 8 slide, so as to extend the expansion block 3, the expansion block 3 is connected with screw rod 4, the bottom of screw rod 4 is connected with fixed sheet 5, the height of fixed sheet 5 can be adjusted by screw rod 4, the contact area between the device and the ground can be increased by fixed sheet 5, the stability is improved, the inner cavity 14 is opened in the connecting block 8, the fixed shaft 12 is fixedly installed in the inner cavity 14, the elastic element 13 is connected with the surface of fixed shaft 12, the limit column 11 is connected with the bottom side wall of elastic element 13, the limit column 11 corresponds to the limit hole 10.

[0031] In this embodiment, the sliding groove 9 is provided with four, which are located in the front, rear, left and right four side walls of the base 1, and the connecting block 8 is inserted and installed in the inside, when the jack 2 works on uneven ground, if one side is subjected to greater pressure, the other three connecting blocks 8 can provide effective support to prevent the base 1 from tilting or deviating.

[0032] In this embodiment, the limit hole 10 is opened in the front and rear inner side wall of the sliding groove 9, the inner wall of the limit hole 10 is arc-shaped, the number of limit holes 10 can be opened according to the demand, the more the number of limit holes 10, the more accurate the distance of connecting block 8 adjustment, for example, when the number of limit holes 10 increases, the interval is very small, there is a limit hole 10, then the connecting block 8 can find the appropriate fixed position in a smaller distance range, the arc-shaped inner wall of the limit hole 10 can reduce the wear of the limit column 11 matched therewith, and the cooperation is more smooth, when the connecting block 8 moves, the limit column 11 is limited by the inner wall of the sliding groove 9 and is compressed, when the limit column 11 moves to the limit hole 10, the limit column 11 loses the limitation of the inner wall of the sliding groove 9, at this time, the limit column 11 is inserted into the limit hole 10 under the action of the elastic element 13, thereby playing a fixing and limiting role.

[0033] In this embodiment, the screw rod 4 penetrates the bottom end of the expansion block 3 and is threadedly connected with the expansion block 3, the bottom end of the screw rod 4 is fixedly connected with the fixed sheet 5, so that the screw rod 4 can move up and down relative to the expansion block 3 when rotating, by rotating the screw rod 4 clockwise or counterclockwise, the screw rod 4 can be raised or lowered in the expansion block 3, thereby adjusting the height of the fixed sheet 5, when working on uneven ground, the height of the fixed sheet 5 can also be adjusted to make the device stably contact with the ground, thereby ensuring the stability of the jack 2 when working.

[0034] In the embodiment, the through holes are arranged in the front and rear sidewalls of the connecting block 8, and the limiting column 11 penetrates through the through holes, so that the limiting column 11 can be in telescopic movement and can ensure the stability and directionality of the limiting column 11 during the telescopic movement, thereby avoiding deviation or shaking of the limiting column 11. For example, when the connecting block 8 moves in the sliding groove 9, the limiting column 11 can be accurately matched with the limiting hole 10 in the inner sidewall of the sliding groove 9 under the action of the elastic member 13, thereby realizing the positioning and fixing of the connecting block 8.

[0035] In the embodiment, the elastic member 13 is in a "V" shape, and the bottom ends of the two sidewalls are connected with the limiting column 11. The two sidewalls of the elastic member 13 have elasticity, and the "V" shape enables the elastic member 13 to be elastically deformed when subjected to pressure, thereby realizing the elastic function. When the connecting block 8 moves to a specific position in the sliding groove 9, the elasticity of the two sidewalls of the elastic member 13 can enable the limiting column 11 to be clamped into the limiting hole 10 under appropriate pressure, thereby fixing the position of the connecting block 8.

[0036] In the embodiment, the fixed shaft 12 is installed at the right end of the inner cavity 14, and the top end of the elastic member 13 is sleeved on the surface of the fixed shaft 12 and is fixedly connected with the fixed shaft 12. When external force causes the elastic member 13 to be compressed or stretched, the fixed connection between the top end and the fixed shaft 12 can effectively control the deformation direction and range of the elastic member 13.

[0037] In work, first, the jack 2 is placed at a required position, and when the jack 2 starts to lift a heavy object, the extension block 3 can be pulled by a worker, the extension block 3 drives the connecting block 8 to move, at this time, the limiting column 11 in the connecting block 8 moves along the inner wall of the sliding groove 9 and compresses the elastic member 13 under the limitation of the inner wall of the sliding groove 9. When the limiting column 11 moves to the limiting hole 10, the limiting column 11 is inserted into the limiting hole 10 under the reaction force of the elastic member 13, thereby playing a fixing and limiting role. The worker can pull the extension block 3 to a suitable distance according to specific requirements, finally, the fixed sheet 5 is in contact with the ground to increase the contact area between the device and the ground, thereby ensuring the stability of the jack 2 during work. If the ground is uneven, the height of the fixed sheet 5 at the bottom end of the screw rod 4 can be adjusted by rotating the screw rod 4, thereby adapting to the ground in various conditions.

[0038] The utility model is not limited to the above-mentioned embodiment, any person should know the structural change made under the inspiration of the utility model, any technical scheme with the same or similar utility model falls into the protection scope of the utility model. The utility model does not describe the technology, shape, structure part in detail and is the known technology.

Claims

1. A hydraulic jack (2) with a safety valve having high stability, characterized in that, Include: Base (1), the base (1) top end is equipped with a jack (2), the surface of the jack (2) is equipped with a fixed ring (6), the fixed ring (6) bottom end is connected with a fixed rod (7), and the fixed rod (7) is connected with the surface of the base (1); The chute (9) is opened in the base (1), and the side wall of the chute (9) is provided with a limiting hole (10); The connecting block (8) is inserted and installed in the chute (9), the side wall of the connecting block (8) is connected with the expansion block (3), the expansion block (3) is connected with the screw rod (4), the bottom end of the screw rod (4) is connected with the fixed sheet (5), and the inner cavity (14) is opened in the connecting block (8); The fixed shaft (12) is fixedly installed in the inner cavity (14), the surface of the fixed shaft (12) is connected with the elastic element (13), and the bottom end side wall of the elastic element (13) is connected with the limiting column (11).

2. A hydraulic jack (2) with a safety valve having high stability according to claim 1, characterized in that: The chute (9) is provided with four, which are respectively located in the front and rear left and right side walls of the base (1), and the connecting block (8) is inserted and installed in the inside.

3. A hydraulic jack (2) with a safety valve according to claim 1, characterized in that: The limiting hole (10) is opened in the front and rear inner side walls of the chute (9), and the inner wall of the limiting hole (10) is arc-shaped.

4. A hydraulic jack (2) with a safety valve according to claim 1, characterized in that: The screw rod (4) penetrates the expansion block (3) at the bottom end, and is in threaded connection with the expansion block (3), and the bottom end of the screw rod (4) is fixedly connected with the fixed sheet (5).

5. A hydraulic jack (2) with a safety valve according to claim 1, characterized in that: The connecting block (8) is provided with a through hole on the front and rear side walls, and the limiting column (11) penetrates the through hole.

6. A hydraulic jack (2) with a safety valve according to claim 1, characterized in that: The elastic element (13) is "V"-shaped, and the bottom ends of the two side walls are connected with the limiting column (11), and the two side walls of the elastic element (13) are elastic.

7. A hydraulic jack (2) with a safety valve according to claim 1, characterized in that: The fixed shaft (12) is installed at the right end of the inner cavity (14), the elastic element (13) is sleeved on the surface of the fixed shaft (12) at the top end, and the top end is fixedly connected with the fixed shaft (12).

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