Multi-section pneumatic jack

Abstract

The utility model discloses a multi-section type pneumatic jack which comprises an oil cylinder component, a base installed at the bottom of the oil cylinder component, a handle installed on the base and used for pulling the base to move, front wheels installed on the two sides of the base and a pneumatic switch installed on the handle. The hydraulic system is characterized in that the oil cylinder part comprises a multi-section type air cylinder, an oil cylinder installed outside the multi-section type air cylinder and a piston rod installed in the multi-section type air cylinder, and the piston rod is provided with an ejector head; the multi-section type air cylinder is adopted, the jacking height is increased and can be adjusted according to requirements, meanwhile, the multi-section type air cylinder is arranged on the same axis, the multi-section type air cylinder jacks upwards in the axial direction during jacking, the displacement phenomenon is avoided, the jack is prevented from swinging to the maximum extent, and the jacking efficiency is improved. And the stability and the safety of the heavy object during ascending are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of jack, concretely is a multi -section type pneumatic jack. BACKGROUND

[0002] Horizontal jack is an important hydraulic element widely used in supporting equipment deadweight, adjusting equipment level on heavy vehicle or mobile equipment, it is mainly used in factory and mine, transportation department as vehicle repair and other hoisting, supporting work, the existing horizontal jack generally is tray type, through the lifting arm drives the tray in contact with the weight to complete the lifting work, the shortcoming is that the lifting height is low, the lifting arm is in the movement track of lifting process, and the weight or jack is easily displaced, leading to the stability of the weight on the tray is not enough, the lifting arm is easy to swing, therefore, a multi -section type pneumatic jack is provided. SUMMARY

[0003] The utility model mainly aims at providing can effectively solve the problem in the background art.

[0004] In order to achieve the above object, the utility model takes the technical scheme as follows: a multi -section type pneumatic jack, including oil cylinder component, the base of installing in the bottom of oil cylinder component, the handle of installing in the base both sides and being used for pulling the base movement, the front wheel of installing in the base both sides and the pneumatic switch of installing on the handle, its characterized in that: the oil cylinder component includes multi -section type pneumatic cylinder, the oil cylinder of installing in the multi -section type pneumatic cylinder outside and the piston rod of installing in the multi -section type pneumatic cylinder inside, the top head of being equipped with on the piston rod.

[0005] Preferably, the multi-section pneumatic cylinder comprises an outer cylinder, a middle cylinder and an inner cylinder arranged on the same axis.

[0006] Preferably, the piston rod is provided with a screw and a steel ball connected with the screw.

[0007] Preferably, the oil cylinder component is further provided with an oil tank connected with the oil cylinder.

[0008] Preferably, the oil cylinder component further comprises a cover plate arranged on the top of the oil cylinder component and an outer sleeve component arranged on the outer side of the oil cylinder component.

[0009] Preferably, the handle is provided with a connector connected with the air pump.

[0010] Preferably, the base is provided with a gas pipe connector A for oil cylinder pressure relief and a gas pipe connector B for oil cylinder pressure increase.

[0011] Preferably, the oil cylinder component is provided with a gas pipe connector C connected with the gas pipe connector A and a gas pipe connector D connected with the gas pipe connector B.

[0012] Preferably, the oil cylinder and the multi-section cylinder are provided with dustproof rings, steel wire retaining rings, and the multi-section cylinder is further provided with a plurality of gasket rings.

[0013] The utility model has the advantages that: the multi-section cylinder is adopted to increase the height of the jacking, and the height can be adjusted according to requirements; the multi-section cylinder is arranged on the same axis, so that the multi-section cylinder is jacked upward along the axial direction when jacking, and displacement does not occur, the swinging movement of the jack is prevented to the maximum extent, and the stability and safety of the heavy object during lifting are ensured.

[0014] The dustproof rings prevent dust from entering the oil cylinder and the multi-section cylinder during operation, so that impurities are not mixed in the hydraulic oil, the multi-section cylinder is affected during lifting, and the oil cylinder and the multi-section cylinder are not worn; the steel wire retaining rings prevent the gap of the multi-section cylinder from being bitten under high pressure, and the stability of the multi-section cylinder under high pressure is enhanced; the gasket rings prevent the internal hydraulic oil of the multi-section cylinder from leaking during lifting, and play a sealing role. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is the overall structure front view of the utility model;

[0016] Fig. 2 is the overall cross-sectional plan view of the utility model;

[0017] Fig. 3 is the partial cross-sectional view of the utility model.

[0018] Legend: 1, oil cylinder part; 11, cylinder; 111, outer cylinder; 112, middle cylinder; 113, inner cylinder; 12, oil cylinder; 13, piston rod; 131, screw; 132, steel ball; 14, top head; 15, oil tank; 16, dustproof ring; 17, steel wire retaining ring; 18, gasket ring; 2, base; 21, gas pipe joint A; 22, gas pipe joint B; 23, gas pipe joint C; 24, gas pipe joint D; 3, handle; 4, front wheel; 5, pneumatic switch; 6, cover plate; 7, sleeve part; 8, joint. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0020] For example, Figs. 1-3As shown, a multi-section pneumatic jack, comprising a cylinder component 1, a base 2 installed at the bottom of the cylinder component 1, a handle 3 installed on the base 2 and used to pull the base 2 to move, front wheels 4 installed on both sides of the base 2, and a pneumatic switch 5 installed on the handle, characterized in that: the cylinder component 1 comprises a multi-section cylinder 11, a cylinder 12 installed outside the multi-section cylinder 11, and a piston rod 13 installed inside the multi-section cylinder 11, and a top head 14 is arranged on the piston rod 13; by adopting the multi-section cylinder 11, the lifting height is increased, and the height can also be adjusted according to the needs, and the multi-section cylinder 11 is arranged on the same axis, so that the multi-section cylinder 11 is lifted upward along the axial direction when lifting, and displacement phenomenon does not occur, which maximally prevents the rocking movement of the jack and guarantees the stability and safety of the heavy object when rising.

[0021] In one embodiment, the multi-section cylinder 11 comprises an outer cylinder 111, a middle cylinder 112, and an inner cylinder 113 from outside to inside, and the outer cylinder 111, the middle cylinder 112, and the inner cylinder 113 are arranged on the same axis; the piston rod 13 is provided with a screw 131 and a steel ball 132 connected with the screw 131; the cylinder component 1 is further provided with an oil tank 15 connected with the cylinder 12; the cylinder component 1 further comprises a cover plate 6 arranged at the top of the cylinder component 1 and a sleeve component 7 arranged outside the cylinder component 1; the handle 3 is provided with a joint 8 connected with a gas pump; the base 2 is provided with a gas pipe joint A21 for pressure relief of the cylinder 12 and a gas pipe joint B22 for pressure increase of the cylinder 12; the cylinder component 1 is provided with a gas pipe joint C23 connected with the gas pipe joint A21 and a gas pipe joint D24 connected with the gas pipe joint B22.

[0022] In one embodiment, the cylinder 12 and the multi-section cylinder 11 are provided with a plurality of dustproof rings 16 and steel wire retaining rings 17, and the multi-section cylinder 11 is further provided with a plurality of Gley rings 18; by arranging the dustproof rings 16, dust is prevented from entering the cylinder 12 and the multi-section cylinder 12 during operation, so that impurities are not mixed in the hydraulic oil, the multi-section cylinder 11 is affected to rise and fall, and the cylinder 12 and the multi-section cylinder 11 are not worn; by arranging the steel wire retaining rings 17, the gap of the multi-section cylinder 11 is prevented from being bitten under high pressure, and the stability of the multi-section cylinder 11 working under high pressure is enhanced; by arranging the Gley rings 18, the internal hydraulic oil of the multi-section cylinder 11 is prevented from leaking during the lifting and falling process, and a sealing effect is achieved.

[0023] The utility model discloses, first through pulling handle 3, make the jack reach the appointed place, and the head 14 is aimed at the weight, and then the air pump is connected through the air pipe and is accessed the air inlet joint 8 of handle 3 setting, and the air switch 5 is dialled, makes it open air inlet, and air enters the air pipe joint B22 along the air pipe, and then passes through the air pipe and air pipe joint C23 connection and enters the oil tank 15, and the hydraulic oil in the oil tank 15 is under pressure, and drive cylinder 12, make the steel ball 132 in piston rod 13 push screw 131 upwards, and the head 14 is pushed upwards, and the head 14 drives multi -section air cylinder 11 from outside to inside in proper order and lifts up outer cylinder 111, middle cylinder 112, inner cylinder 113, and completes the lifting action, when using is completed, the air switch 5 is dialled, and the multi -section air cylinder 11 is in proper order from inside to outside and falls, and the hydraulic oil returns to the oil tank 15.

[0024] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled person in the art should understand that the utility model is not limited by the above examples, and the above examples and the description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-section pneumatic jack, comprising a cylinder part (1), a base (2) mounted at the bottom of the cylinder part (1), a handle (3) mounted on the base (2) and used to pull the base (2) to move, front wheels (4) mounted on both sides of the base (2), and a pneumatic switch (5) mounted on the handle, characterized in that: The oil cylinder part (1) comprises a multi-section cylinder (11), an oil cylinder (12) installed outside the multi-section cylinder (11), and a piston rod (13) installed inside the multi-section cylinder (11), wherein the piston rod (13) is provided with a top head (14).

2. A multi-section pneumatic jack as claimed in claim 1, wherein: The multi-section cylinder (11) comprises an outer cylinder (111), a middle cylinder (112), and an inner cylinder (113) arranged on the same axis.

3. A multi-section pneumatic jack as claimed in claim 1, wherein: The piston rod (13) is provided with a screw (131) and a steel ball (132) connected with the screw (131).

4. The multi-section pneumatic jack of claim 1, wherein: The oil cylinder part (1) is further provided with an oil tank (15) connected with the oil cylinder (12).

5. A multi-section pneumatic jack as claimed in claim 4, wherein: The oil cylinder part (1) further comprises a cover plate (6) arranged on the top of the oil cylinder part (1) and an outer sleeve part (7) arranged on the outer side of the oil cylinder part (1).

6. A multi-section pneumatic jack as claimed in claim 1, wherein: The handle (3) is provided with a joint (8) connected with the air pump.

7. The multi-section pneumatic jack of claim 1, wherein: The base (2) is provided with an air pipe joint A (21) for pressure relief of the oil cylinder (12) and an air pipe joint B (22) for pressure increase of the oil cylinder (12).

8. A multi-section pneumatic jack as claimed in claim 7, characterised in that: The oil cylinder part (1) is provided with an air pipe joint C (23) connected with the air pipe joint A (21) and an air pipe joint D (24) connected with the air pipe joint B (22).

9. The multi-section pneumatic jack of claim 1, wherein: The oil cylinder (12) and the multi-section cylinder (11) are provided with a plurality of dustproof rings (16) and steel wire retaining rings (17), and the multi-section cylinder (11) is further provided with a plurality of Glay rings (18).

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