Novel jacking oil cylinder

Abstract

The utility model discloses a novel jacking oil cylinder which comprises a cylinder body, a base, a piston rod, a guide sleeve and a disc spring set. A large-diameter cylinder body is arranged on the outer side of the upper portion of the cylinder body, the bottom of the cylinder body is welded to the base, and a disc spring set is arranged in an inner cavity defined by the cylinder body and the base. A base hydraulic oil channel is arranged in the base; the piston rod is composed of an abutting column, a fixing column and a jacking column, the diameter of the abutting column is consistent with the inner diameter of the disc spring set, the abutting column is arranged in the inner diameter of the disc spring set, a piston is arranged on the fixing column, and the outer wall of the piston abuts against the inner wall of the cylinder body. A guide sleeve is arranged at the top opening of the cylinder body, multiple sets of sealing rings are arranged on the inner wall of the guide sleeve to make contact with the jacking column, an arc-shaped groove is formed in the top plane of the jacking column, and a downward-concave rectangular groove is formed in the middle of the arc-shaped groove. The structure is compact, bolt connection is not needed, and assembling is convenient and fast; meanwhile, monitoring and buffering functions are achieved, and the working life and the working efficiency of the oil cylinder are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oil cylinder manufacturing, especially a novel jacking oil cylinder. BACKGROUND

[0002] In the industrial and mechanical manufacturing field, the jacking oil cylinder, as an indispensable key equipment, plays a crucial role and is widely used in various lifting, supporting and precise positioning operations. However, the traditional jacking oil cylinder has many limitations in design and function, which greatly limits its performance and application range.

[0003] The traditional oil cylinder generally lacks effective buffering mechanism, resulting in a large impact force and vibration during jacking or resetting, further aggravating the wear and damage risk of the oil cylinder; at the same time, the oil cylinder is prone to hydraulic oil leakage during use, causing environmental pollution and safety hazards; and the current oil cylinder lacks monitoring function, so the leakage problem cannot be found in time, and therefore the working efficiency of the oil cylinder cannot be guaranteed. SUMMARY

[0004] The utility model aims at providing a novel jacking oil cylinder integrating monitoring function, buffering performance and easy maintenance characteristics.

[0005] The utility model relates to the field of oil cylinder manufacturing, especially a novel jacking oil cylinder.

[0006] The cylinder body upper part outside is equipped with a large-diameter cylinder body, the cylinder body bottom is welded with the base, and the inner cavity surrounded by the cylinder body and the base is equipped with a disc spring group; the base is equipped with a base hydraulic oil channel; the piston rod is composed of a resisting column, a fixed column and a jacking column, the diameter of the resisting column is consistent with the inner diameter of the disc spring group, the resisting column is placed in the inner diameter of the disc spring group, the fixed column is equipped with a piston, and the outer wall of the piston is in contact with the inner wall of the cylinder body; the cylinder body top opening is equipped with a guide sleeve, the inner wall of the guide sleeve is equipped with a plurality of sealing ring jacking columns, the top plane of the jacking column is equipped with an arc-shaped groove, and the middle part of the arc-shaped groove is equipped with a concave rectangular groove.

[0007] Preferably, the size of the base is larger than the diameter of the cylinder body, one end of the base hydraulic oil channel is an outlet on the side wall of the base, and the other end is an outlet on the upper plane of the base close to one side of the cylinder body.

[0008] Preferably, the bottom of the piston is fixed through a pressing plate, and the bottom of the pressing plate, the bottom of the resisting column and the top of the jacking column are all equipped with a rubber layer.

[0009] Preferably, the top of the guide sleeve is provided with a guide protrusion, the outer periphery of the guide protrusion is equipped with external threads, the guide protrusion is connected with a dustproof sleeve through threads, and the inner diameter of the dustproof sleeve is equipped with a dustproof ring.

[0010] Preferably, the cylinder opening is provided with a cylinder fixing step, the guide sleeve is provided with a guide sleeve step, and the cylinder fixing step and the guide sleeve step are connected through threads.

[0011] Preferably, a wedge-shaped sealing ring is arranged between the cylinder fixing step and the guide sleeve step, and the wedge-shaped sealing ring is an inner wedge-shaped sealing ring and an outer wedge-shaped sealing ring.

[0012] Preferably, an oil overflow channel is arranged on the cylinder at the bottom of the guide sleeve, one end of the oil overflow channel is opened at the joint of the bottom of the guide sleeve and the cylinder, and the other end of the oil overflow channel is opened at the bottom of the large-diameter cylinder and is connected with an oil can.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The cylinder bottom and the base are firmly connected through welding, and a disc spring group is arranged in the closed inner cavity surrounded by the cylinder bottom and the base, so that the disc spring group can be used in cooperation with hydraulic oil to provide jacking force or can provide buffering force when the piston rod falls;

[0015] 2. The top of the jacking column is designed as an arc-shaped groove, and a concave rectangular groove is arranged in the middle, so that the jacking column can be adapted to various objects to be jacked, such as a cylindrical base and a plane.

[0016] 3. The dustproof sleeve is connected with the guide sleeve through threads, a dustproof ring is arranged in the dustproof sleeve, dust is effectively prevented from entering the oil cylinder, the dustproof sleeve can be disassembled at any time, and maintenance is more convenient and fast in the later period; inner and outer wedge-shaped sealing rings are additionally arranged between the cylinder fixing step and the guide sleeve step, so that the oil is prevented from leaking.

[0017] 4. An oil overflow channel is arranged on the cylinder at the bottom of the guide sleeve, so that the piston leakage can be observed through the oil can, and the piston can be quickly judged and repaired or replaced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model discloses a structure schematic view.

[0019] 1. The cylinder, 101 large-diameter cylinder, 102 cylinder fixing step, 103 oil overflow channel, 2 base, 201 base hydraulic oil channel, 3 disc spring group, 4 piston rod, 401 contact column, 402 fixed column, 403 jacking column, 4031 arc-shaped groove, 4032 concave rectangular groove, 5 guide sleeve, 501 guide protrusion, 502 guide sleeve step, 6 piston, 7 sealing ring, 8 pressing plate, 9 dustproof sleeve, 10 dustproof ring, 11 wedge-shaped sealing ring, 1101 inner wedge-shaped sealing ring, 1102 outer wedge-shaped sealing ring. DETAILED DESCRIPTION

[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0021] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1 As shown, a novel lifting cylinder includes a cylinder body 1, a base 2, a disc spring assembly 3, a piston rod 4, and a guide sleeve 5.

[0024] A large-diameter cylinder 101 is provided on the upper outer side of the cylinder body 1. The bottom of the cylinder body 1 is welded to the base 2. A disc spring assembly 3 is provided in the inner cavity formed by the cylinder body 1 and the base 2. A base hydraulic oil passage 201 is provided in the base 2. The piston rod 4 is composed of a contact post 401, a fixing post 402, and a lifting post 403. The diameter of the contact post 401 is consistent with the inner diameter of the disc spring assembly 3. The contact post 401 is placed in the inner diameter of the disc spring assembly 3. A piston 6 is provided on the fixing post 402. The outer wall of the piston 6 abuts against the inner wall of the cylinder body 1. A guide sleeve 5 is provided at the top opening of the cylinder body 1. Multiple sets of sealing rings 7 are provided on the inner wall of the guide sleeve 5 to contact the lifting post 403. An arc groove 4031 is provided on the top plane of the lifting post 403. A concave rectangular groove 4032 is provided in the middle of the arc groove 4031.

[0025] like Figure 1As shown in the drawings, the base 2 is larger than the diameter of the cylinder 1, the base provides a larger support area, enhances the stability of the oil cylinder, the base hydraulic oil channel 201 one end outlet is located in the side wall of the base 2, the other end outlet is located in the upper plane of the base 2 and close to one side of the cylinder 1, ensure that the base hydraulic oil channel outlet will not contact with the disc spring group, improve the oil efficiency.

[0026] As shown in the drawings, the piston 6 bottom is fixed through the pressing plate 8, the bottom of the pressing plate 8 and the bottom of the abutting column 401 and the top of the jacking column are all provided with rubber layers, which increases the buffering effect between the abutting column and the cylinder, the disc spring group and the pressing plate, and the jacking column and the object to be jacked, thereby prolonging the service life of the oil cylinder. Figure 1

[0027] As shown in the drawings, the guide sleeve 5 top guide protrusion 501, the guide protrusion 501 is provided with external threads on the periphery, the guide protrusion 501 is connected with the dustproof sleeve 9 through threads, the dustproof sleeve 9 is provided with a dustproof ring 10 in the inner diameter, since the jacking oil cylinder is used more outdoors, and the outdoor working environment is various, therefore, the dustproof sleeve can be disassembled at any time to replace the dustproof ring, and the later maintenance is more convenient and fast. Figure 1

[0028] As shown in the drawings, the cylinder 1 opening is provided with a cylinder fixing step 102, the guide sleeve 5 is provided with a guide sleeve step 502 on the periphery, the cylinder fixing step 102 and the guide sleeve step 502 are connected through threads, avoiding the use of bolts, and being more convenient during installation. Figure 1

[0029] As shown in the drawings, the cylinder fixing step 102 and the guide sleeve step 502 are connected through a wedge-shaped sealing ring 11, the wedge-shaped sealing ring 11 is an inner wedge-shaped sealing ring 1101 and an outer wedge-shaped sealing ring 1102, which improves the sealing between the guide sleeve and the cylinder, prevents the leakage of hydraulic oil, and improves the reliability of the oil cylinder. Figure 1

[0030] As shown in the drawings, the cylinder 1 on the bottom of the guide sleeve 5 is provided with an oil overflow channel 103, one end of the oil overflow channel 103 is opened at the junction of the bottom of the guide sleeve 5 and the cylinder 1, and the other end is opened at the bottom of the large-diameter cylinder 101 and connected with an oil can; when the piston leaks, the oil can be observed through the oil can, and the judgment can be made quickly for maintenance and replacement. Figure 1 The working principle of the utility model is described as follows: when the oil cylinder works, the hydraulic oil enters the inside of the cylinder through the base hydraulic oil channel, pushes the piston and the piston rod to move upward; when the oil cylinder needs to reset, the base hydraulic oil channel returns, the piston and the piston rod move downward to realize the reset action; the disc spring group plays a certain jacking effect and buffering effect when rising and resetting.

[0031]

[0032] ​​​​​The above-described embodiments are merely preferred embodiments of the present application, and are not intended to limit the design concept and scope of the present application. Without departing from the design concept of the present application, various modifications and improvements to the technical solutions of the present application made by those of ordinary skill in the art shall fall within the protection scope of the present application, and the technical content of the present application claimed for protection has been entirely recorded in the claims.

Claims

1. A new type of jacking ram, characterized in that, Including cylinder, base, piston rod, guide sleeve, disc spring group; The large-diameter cylinder is arranged on the outer side of the upper part of the cylinder, the bottom of the cylinder is welded with the base, the disc spring group is arranged in the inner cavity surrounded by the cylinder and the base, the base is internally provided with a base hydraulic oil channel, the piston rod is composed of a resisting column, a fixing column and a jacking column, the diameter of the resisting column is consistent with the inner diameter of the disc spring group, the resisting column is arranged in the inner diameter of the disc spring group, the piston is arranged on the fixing column, and the outer wall of the piston is in abutment with the inner wall of the cylinder, the guide sleeve is arranged at the opening of the top of the cylinder, a plurality of sealing rings are arranged on the inner wall of the guide sleeve and in abutment with the jacking column, the top plane of the jacking column is provided with an arc-shaped groove, and the middle part of the arc-shaped groove is provided with a concave rectangular groove.

2. A new type of jacking ram as claimed in claim 1, characterized in that, The size of the base is greater than the diameter of the cylinder, the outlet of one end of the base hydraulic oil channel is located on the side wall of the base, and the outlet of the other end is located on the upper plane of the base and close to one side of the cylinder.

3. A novel jacking ram as claimed in claim 1, wherein, The bottom of the piston is fixed by a pressing plate, and the bottom of the resisting column and the top of the jacking column are provided with rubber layers.

4. A new type of jacking ram as claimed in claim 1, characterized in that, The top of the guide sleeve is provided with a guide protrusion, the outer periphery of the guide protrusion is provided with external threads, the guide protrusion is connected with a dustproof sleeve through threads, and the inner diameter of the dustproof sleeve is provided with a dustproof ring.

5. A novel jacking ram as claimed in claim 1, wherein, The opening of the cylinder is provided with a cylinder fixing step, the outer periphery of the guide sleeve is provided with a guide sleeve step, and the cylinder fixing step and the guide sleeve step are connected through threads.

6. A novel jacking ram as claimed in claim 5, wherein, The wedge-shaped sealing rings between the cylinder fixing step and the guide sleeve step are inner wedge-shaped sealing rings and outer wedge-shaped sealing rings.

7. A new type of jacking ram as claimed in claim 1, characterized in that, The cylinder is provided with an oil overflow channel at the bottom of the guide sleeve, one end of the oil overflow channel is open at the junction of the bottom of the guide sleeve and the cylinder, and the other end of the oil overflow channel is open at the bottom of the large-diameter cylinder and connected with an oil can.

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