Manual hydraulic jack for equipment emergency maintenance

Abstract

The utility model provides a manual hydraulic jack for emergency maintenance of equipment. The manual hydraulic jack comprises a main body mechanism and a pressing mechanism, the main body mechanism comprises a base and a hydraulic cylinder, the hydraulic cylinder is installed on one side of the base, a piston rod is installed on one side in the hydraulic cylinder, an oil pressing handle is installed on one side of the base, and a connecting piece is hinged to one side of the base; the downward pressing mechanism comprises a pressing rod and a driving arm, the driving arm is hinged to one side of the oil pressing handle, one side of the driving arm is hinged to the connecting piece, the pressing rod is hinged to one side of the driving arm, and one side of the driving arm is sleeved with a limiting piece; the pressing rod is arranged to be matched with the driving arm to drive the oil pressing handle, the pressing rod can be folded and stored in the groove of the driving arm when not in use, meanwhile, the holding rod is arranged to be convenient for a user to hold, the use length of the holding rod can be conveniently adjusted according to requirements, so that a force application point is changed, and the holding rod can be stored in the driving arm along with the pressing rod. The occupied space is reduced.

Description

Technical Field

[0001] The utility model relates to a jack, in particular to a manual hydraulic jack for emergency repair of equipment, belonging to the technical field of jacks. Background Art

[0002] A jack is a light and small lifting device that uses a rigid lifting piece as a working device to lift heavy objects through a small stroke of the top support or the bottom claw. Jacks are mainly used in factories, mines, transportation and other departments for vehicle repair and other lifting and supporting work. Its structure is light, strong, flexible and reliable, and can be carried and operated by one person. Jacks are divided into mechanical jacks and hydraulic jacks, etc., and their principles are different. In principle, the most basic principle based on hydraulic transmission is Pascal's law, that is, the pressure of the liquid is consistent everywhere, so in a balanced system, a relatively small The pressure applied on the piston is relatively small, while the pressure applied on the large piston is also relatively large, which can keep the liquid still. Therefore, through the transmission of the liquid, different pressures can be obtained on different ends, and the purpose of transformation can be achieved. The hydraulic jack that people often see uses this principle to achieve force transmission. The screw jack reciprocates the handle, and the claw pushes the ratchet gap to rotate. The small bevel gear drives the large bevel gear to rotate the lifting screw, so that the lifting sleeve can be lifted or lowered, and the lifting pulling force function is achieved, but it is not as simple as the hydraulic jack;

[0003] China's public patent (CN202321473951.1) discloses a portable manual hydraulic jack, which can facilitate the movement of the hydraulic jack through a support box, a handle, a cylinder, a connecting plate, a wheel and a limit rod, saving the labor of workers. The limit rods inserted in four places can ensure the stability of the wheels to the movement of the hydraulic jack; through the first protective pad, the second anti-slip pad, the base, the gasket and the convex strip, the stability of the hydraulic jack during operation can be ensured, and the jacking effect of the jack on the objects can be ensured. However, when this type of jack is in use, the length of its pressure rod is fixed. When lifting different weights, the pressure rod force point is fixed, which is not convenient for adjustment according to the use requirements, and the pressure rod is long, which occupies extra space and is not convenient for storage;

[0004] In order to solve the above technical problems, a manual hydraulic jack for emergency maintenance of equipment is proposed. Utility Model Content

[0005] In view of this, the utility model provides a manual hydraulic jack for emergency maintenance of equipment to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the utility model is implemented as follows: a manual hydraulic jack for emergency maintenance of equipment, comprising a main body mechanism and a pressing mechanism;

[0007] The main body mechanism comprises a base and a hydraulic cylinder, wherein the hydraulic cylinder is installed on one side of the base, a piston rod is installed on one side of the inner side of the hydraulic cylinder, an oil pressure handle is installed on one side of the base, and a connecting piece is hinged on one side of the base;

[0008] The pressing mechanism includes a pressing rod and a driving arm, wherein the driving arm is hinged to one side of the oil pressure handle, one side of the driving arm is hinged to a connecting piece, the pressing rod is hinged to one side of the driving arm, one side of the driving arm is covered with a limiting piece, one end of the pressing rod is threadedly connected to a holding rod, and one side of the holding rod is covered with a protective cover.

[0009] Further preferably, four support blocks are fixedly connected to the bottom of the base, an anti-slip pad is fixedly connected to one side of the support block, a circular hole is opened on one side of the support block, and fixing nails are fixedly connected at equal intervals inside the circular hole.

[0010] Further preferably, an anti-slip seat is installed at one end of the piston rod.

[0011] Further preferably, rollers are symmetrically slidably mounted on both sides of the base, one side of the roller is fixedly connected to a connecting plate, one side of the base is symmetrically rotatably connected to a screw, and one side of the screw is threadedly connected to the connecting plate.

[0012] Further preferably, strip-shaped sliders are fixedly connected to both sides of the driving arm, and the limiting member is slidably connected to the driving arm via the strip-shaped sliders.

[0013] Further preferably, both sides of the limiting member are threadedly connected with fixing bolts.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. The utility model drives the oil pressure handle by arranging a pressure rod to cooperate with the driving arm. The pressure rod can be folded and stored in the groove of the driving arm when idle. At the same time, a holding rod is arranged to facilitate the user to hold it, and the use length of the holding rod can be adjusted according to needs, so as to change the force application point. The holding rod can be stored in the driving arm together with the pressure rod, thereby reducing the occupied space;

[0016] Second, the utility model drives the roller to move up and down by setting a screw rod and a connecting plate, so that the use state of the roller can be adjusted according to needs, and the utility model can be moved when needed.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a rear view structural diagram of the utility model;

[0021] Figure 3 This is a structural diagram of the support block in the utility model;

[0022] Figure 4 It is a structural diagram of the driving arm and the pressure rod in the utility model.

[0023] Figure numerals: 10, main body; 12, base; 13, hydraulic cylinder; 14, oil pressure handle; 15, piston rod; 16, anti-slip seat; 17, support block; 18, roller; 19, connecting plate; 20, pressing mechanism; 21, pressure rod; 22, driving arm; 23, limiter; 24, holding rod; 25, protective cover; 26, strip slider; 27, fixing bolt; 31, screw; 32, connecting piece; 33, anti-slip pad; 34, round hole; 35, fixing nail. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown, an embodiment of the utility model provides a manual hydraulic jack for emergency repair of equipment, which is composed of a main body mechanism 10 and a pressing mechanism 20.

[0027] The main body mechanism 10 includes a base 12, a hydraulic cylinder 13 and an oil pressure handle 14. The hydraulic cylinder 13 is installed on one side of the base 12. A piston rod 15 is installed on one side of the inside of the hydraulic cylinder 13. An anti-slip seat 16 is installed at one end of the piston rod 15. Block particles are integrally formed on the surface of the anti-slip seat 16 to increase the friction of the contact surface and prevent the contact surface from slipping. The oil pressure handle 14 is installed on one side of the base 12. A connecting piece 32 is hinged on one side of the base 12.

[0028] In one embodiment, in order to enhance the stability of the base 12 and prevent the base 12 from sliding, four support blocks 17 are fixedly connected to the bottom of the base 12, an anti-slip pad 33 is fixedly connected to one side of the support block 17, a circular hole 34 is opened on one side of the support block 17, and fixing nails 35 are evenly distributed and fixedly connected inside the circular hole 34.

[0029] In one embodiment, in order to facilitate the movement of the jack, rollers 18 are symmetrically slidably installed on both sides of the base 12, one side of the roller 18 is fixedly connected to a connecting plate 19, one side of the base 12 is symmetrically rotatably connected to a screw 31, one side of the screw 31 is threadedly connected to the connecting plate 19, and the screw 31 drives the roller 18 to move up and down through the connecting plate 19, so that the use status of the roller 18 can be adjusted according to needs.

[0030] The pressing mechanism 20 includes a pressing rod 21, a driving arm 22 and a limiting member 23. The driving arm 22 is hinged to one side of the oil pressure handle 14. One side of the driving arm 22 is hinged to the connecting member 32. The pressing rod 21 is hinged to one side of the driving arm 22. Both sides of the driving arm 22 are fixedly connected with a strip slider 26. The limiting member 23 is slidably connected to the driving arm 22 through the strip slider 26, which is convenient for adjusting the position of the limiting member 23 and preventing the limiting member 23 from falling off the driving arm 22. One end of the pressing rod 21 is threadedly connected to a holding rod 24, and one side of the holding rod 24 is covered with a protective cover 25.

[0031] In one embodiment, fixing bolts 27 are threadedly connected to both sides of the limit member 23. By rotating the fixing bolts 27, one end of the fixing bolts 27 contacts the strip slider 26, thereby fixing the position of the limit member 23 to prevent the limit member 23 from sliding randomly when the jack is used.

[0032] When the utility model is working: when moving the utility model, the screw rod 31 is rotated to cooperate with the connecting plate 19 to drive the roller 18 to move downward and contact the ground, and the base 12 is lifted up so that the support block 17 at the bottom thereof does not contact the ground, and the utility model can be pushed to move through the roller 18. After moving to the specified position, the screw rod 31 is rotated to make the roller 18 rise so that the roller 18 no longer contacts the ground, the anti-skid pad 33 at the bottom of the support block 17 contacts the ground, the anti-skid seat 16 at one end of the piston rod 15 contacts the object to be lifted, and the sliding limiter 23 is moved to the drive On one side of the movable arm 22, the limit piece 23 does not affect the removal of the pressure rod 21. The pressure rod 21 is pulled out from the driving arm 22, and the holding rod 24 is rotated to adjust the use length. The limit piece 23 is moved so that the protruding part of the limit piece 23 is located on one side of the pressure rod 21 to limit the pressure rod 21 to prevent the pressure rod 21 from being unable to drive the driving arm 22 to move during use. The fixing bolt 27 is rotated so that one end of it squeezes the strip slider 26 to fix the position of the limit piece 23. The pressure rod 21 and the driving arm 22 can be driven by the holding rod 24 to move for lifting.

[0033] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A manual hydraulic jack for emergency maintenance of equipment, characterized by: It comprises a main body mechanism (10) and a pressing mechanism (20); The main body mechanism (10) comprises a base (12) and a hydraulic cylinder (13); the hydraulic cylinder (13) is mounted on one side of the base (12); a piston rod (15) is mounted on one side of the inner portion of the hydraulic cylinder (13); an oil pressure handle (14) is mounted on one side of the base (12); and a connecting piece (32) is hingedly connected to one side of the base (12); The pressing mechanism (20) comprises a pressing rod (21) and a driving arm (22), wherein the driving arm (22) is hinged to one side of the oil pressure handle (14), one side of the driving arm (22) is hinged to a connecting piece (32), the pressing rod (21) is hinged to one side of the driving arm (22), one side of the driving arm (22) is sleeved with a limiting piece (23), one end of the pressing rod (21) is threadedly connected to a holding rod (24), and one side of the holding rod (24) is sleeved with a protective cover (25).

2. The manual hydraulic jack for emergency repair of equipment according to claim 1, characterized in that: Four support blocks (17) are fixedly connected to the bottom of the base (12); a non-slip pad (33) is fixedly connected to one side of the support block (17); a circular hole (34) is opened on one side of the support block (17); fixing nails (35) are fixedly connected to the inside of the circular hole (34) at equal intervals.

3. The manual hydraulic jack for emergency repair of equipment according to claim 1, characterized in that: An anti-slip seat (16) is installed at one end of the piston rod (15).

4. The manual hydraulic jack for emergency repair of equipment according to claim 1, characterized in that: Rollers (18) are symmetrically slidably mounted on both sides of the base (12), one side of the roller (18) is fixedly connected to a connecting plate (19), one side of the base (12) is symmetrically rotatably connected to a screw rod (31), and one side of the screw rod (31) is threadedly connected to the connecting plate (19).

5. The manual hydraulic jack for emergency repair of equipment according to claim 1, characterized in that: Both sides of the driving arm (22) are fixedly connected with a strip-shaped slider (26), and the limiting member (23) is slidably connected to the driving arm (22) via the strip-shaped slider (26).

6. The manual hydraulic jack for emergency repair of equipment according to claim 1, characterized in that: Both sides of the limiting member (23) are threadedly connected with fixing bolts (27).

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