Vertical and horizontal dual-purpose jack

Abstract

The utility model discloses a vertical and horizontal dual-purpose jack relates to jack field, it includes pump body, press hand, jack body and base, jack body includes jacket and the hydro-cylinder that has the piston, and jacket and hydro-cylinder between oil storage chamber, piston and hydro-cylinder between oil storage chamber, the pump body is equipped with the working pump chamber, and the working pump chamber is equipped with the oil storage chamber between the piston and the hydro-cylinder. The jack body has a vertical placing state and a horizontal placing state, when the jack body is in the horizontal placing state, an oil suction hole is formed in the position, corresponding to the oil storage cavity, of the base, and a pump body oil suction hole is formed in the position, corresponding to the working pump cavity, of the base. The base is provided with an oil suction path which is communicated with the oil suction hole and the oil suction hole of the pump body; a sealing ring with an n-shaped cross section is arranged between the piston and the oil cylinder, a mounting groove for mounting the sealing ring is formed in the circumferential surface of the piston, the inner wall surface of the mounting groove is matched with the sealing ring to form a containing cavity, and a plurality of channels communicated with the containing cavity are formed in the piston. The utility model has the advantages of good sealing performance and good working stability.

Description

Technical Field

[0001] The utility model relates to the field of jacks, in particular to a vertical and horizontal dual-purpose jack. Background Art

[0002] Existing vertical and horizontal dual-purpose jacks, such as the vertical and horizontal dual-purpose jack disclosed on April 25, 2023 with publication number CN 218909719 U, have an oil suction hole on the opposite side of the lifting handle, or on the left or right side, and then an oil suction path connecting the oil suction hole of the corresponding oil storage cavity and the oil suction hole of the pump body is processed; however, when the jack is laid down for use, the oil will pour to the lower side, and there is no oil on the upper side. The pressure on the sealing ring on the lower side becomes greater, the sealing performance is greatly reduced, and the working stability is affected. Utility Model Content

[0003] In order to overcome the shortcomings of the background technology, the utility model provides a vertical and horizontal dual-purpose jack with good sealing performance and good working stability.

[0004] The technical solution adopted by the utility model is as follows: a vertical and horizontal dual-purpose jack, which includes a pump body, a lever, a jack body and a base, the jack body includes an outer sleeve and an oil cylinder with a piston, and an oil storage chamber is between the outer sleeve and the oil cylinder, and a sealed oil chamber is between the piston and the oil cylinder. A working pump chamber is arranged in the pump body, and the jack body has two placement states: vertical and horizontal. When in the horizontal placement state, an oil suction hole is provided at the low position of the base corresponding to the oil storage chamber, and a pump body oil suction hole is provided at the position of the base corresponding to the working pump chamber; an oil suction path connecting the oil suction hole and the pump body oil suction hole is provided on the base; a sealing ring with an n-shaped cross section is provided between the piston and the oil cylinder, a mounting groove for mounting the sealing ring is provided on the circumferential surface of the piston, an inner wall surface of the mounting groove cooperates with the sealing ring to form an accommodating chamber, and a plurality of channels connecting the accommodating chambers are provided in the piston.

[0005] The outer circumferential surface and upper and lower side surfaces of the sealing ring are provided with a plurality of circular protrusions.

[0006] The surface of the outer sleeve is provided with supporting protrusions.

[0007] The outer coat is provided with a handle.

[0008] The inlet of the channel is located on the lower surface of the piston, and the outlet thereof is located on the inner wall surface of the mounting groove.

[0009] The beneficial effect of the utility model is as follows: the technical solution processes a plurality of channels on the piston so that the oil enters the accommodating cavity formed by the inner wall of the mounting groove and the sealing ring through the channels. When the jack is working, the oil pressure increases, and the oil exerts a force on the sealing ring, so that the outer circumferential surface of the sealing ring is tightly attached to the inner wall of the oil cylinder and the upper and lower outer wall surfaces of the sealing ring are tightly attached to the upper and lower inner wall surfaces of the mounting groove. The greater the pressure, the better the sealing effect, and the utility model has the advantage of good working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a vertical and horizontal dual-purpose jack according to an embodiment of the utility model.

[0011] Figure 2 It is a schematic diagram of the structure of the vertical and horizontal dual-purpose jack when it is lying down.

[0012] Figure 3 A top view of the base.

[0013] Figure 4 It is a cross-sectional view of a vertical and horizontal jack.

[0014] Figure 5 It is a schematic diagram of the structure of the sealing ring. DETAILED DESCRIPTION

[0015] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0016] As shown in the figure, a vertical and horizontal dual-purpose jack includes a pump body 1, a handle 2, a jack body and a base 3. The jack body includes a jacket 4 and a cylinder 6 with a piston 5, and an oil storage chamber 7 is provided between the jacket 4 and the cylinder 6, and a sealed oil chamber 8 is provided between the piston 5 and the cylinder 6. A working pump chamber is provided in the pump body 1. The jack body has two placement states, vertical and horizontal. When in the horizontal placement state, an oil suction hole 9 is provided at the low position of the base 3 corresponding to the oil storage chamber 7, and a pump body oil suction hole 10 is provided at the position of the base 3 corresponding to the working pump chamber; an oil suction path 11 connecting the oil suction hole 9 and the pump body oil suction hole 10 is provided on the base 3; a sealing ring 12 with an n-shaped cross section is provided between the piston 5 and the cylinder 6, and the piston 5 A mounting groove 13 for mounting a sealing ring 12 is provided on the circumferential surface, and the inner wall surface of the mounting groove 13 cooperates with the sealing ring 12 to form a receiving chamber, and a plurality of channels 14 connected to the receiving chamber are provided in the piston 5; the inlet of the channel 14 is located on the lower surface of the piston 5, and the outlet thereof is located on the inner wall surface of the mounting groove 13; the technical solution processes a plurality of channels on the piston so that the oil enters the receiving chamber formed by the cooperation of the inner wall surface of the mounting groove and the sealing ring through the channels. When the jack is working, the oil pressure increases, and the oil exerts a force on the sealing ring, so that the outer circumferential surface of the sealing ring is tightly attached to the inner wall surface of the oil cylinder and the upper and lower outer wall surfaces of the sealing ring are tightly attached to the upper and lower inner wall surfaces of the mounting groove. The greater the pressure, the better the sealing effect, and the jack has the advantage of good working stability.

[0017] The outer circumferential surface and the upper and lower side surfaces of the sealing ring 12 are provided with a plurality of circular protrusions 15, which play a role of line sealing and have better sealing performance.

[0018] The surface of the outer sleeve 4 is provided with a supporting protrusion 16, which cooperates with the base to support the weight of the jack.

[0019] The outer coat 4 is provided with a handle 17, which is practical and convenient to carry.

[0020] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0022] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the utility model concept is not limited to this utility model. Any modification using the utility model concept will be included in the scope of protection of this patent.

Claims

1. A vertical and horizontal dual-purpose jack, comprising a pump body (1), a handle (2), a jack body and a base (3), wherein the jack body comprises a jacket (4) and a cylinder (6) with a piston (5), an oil storage chamber (7) is provided between the jacket (4) and the cylinder (6), and a sealed oil chamber (8) is provided between the piston (5) and the cylinder (6), wherein a working pump chamber is provided in the pump body (1), and wherein: The jack body has two placement states: vertical and horizontal. When in the horizontal placement state, an oil suction hole (9) is provided at a lower position of the base (3) corresponding to the oil storage cavity (7), and a pump body oil suction hole (10) is provided at a position of the base (3) corresponding to the working pump cavity; an oil suction path (11) connecting the oil suction hole (9) and the pump body oil suction hole (10) is provided on the base (3); a sealing ring (12) with an n-shaped cross section is provided between the piston (5) and the oil cylinder (6); a mounting groove (13) for mounting the sealing ring (12) is provided on the circumferential surface of the piston (5); an inner wall surface of the mounting groove (13) cooperates with the sealing ring (12) to form an accommodating cavity; and a plurality of channels (14) connecting the accommodating cavities are provided in the piston (5).

2. The vertical and horizontal dual-purpose jack according to claim 1, characterized in that: The outer circumferential surface and upper and lower side surfaces of the sealing ring (12) are provided with a plurality of circular protrusions (15).

3. The vertical and horizontal dual-purpose jack according to claim 1, characterized in that: A supporting protrusion (16) is provided on the surface of the outer sleeve (4).

4. The vertical and horizontal dual-purpose jack according to claim 1, characterized in that: The outer jacket (4) is provided with a handle (17).

5. The vertical and horizontal dual-purpose jack according to claim 1, characterized in that: The inlet of the channel (14) is located on the lower surface of the piston (5), and the outlet thereof is located on the inner wall surface of the mounting groove (13).

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