Double-pressurization pneumatic supporting cylinder

Abstract

The utility model relates to the technical field of starting, in particular to a double-supercharging pneumatic supporting cylinder, which comprises a cylinder body, a cylinder cover, a connecting cover, a cylinder barrel and a rear cover, and the cylinder body is formed by assembling a front cover, a connecting cover, a cylinder barrel and a rear cover. The supporting rod is assembled in the cylinder body; through air pressure control, the supporting cylinder can rapidly lock and release the supporting rod, stable and adjustable supporting force is provided, the conical clamping sleeve and the locking sleeve are matched in the supporting cylinder, the elasticity of the spring is adopted in the supporting cylinder, stable locking and smooth releasing are guaranteed, meanwhile, the sealing ring effectively prevents gas leakage, the sealing performance and durability are guaranteed, and the service life of the supporting cylinder is prolonged. The thread design at the joint of the jacket and the supporting rod provides additional locking or adjusting possibility, practicability is enhanced, the whole supporting cylinder is compact in structure and easy to operate, fixing and loosening of the supporting rod can be rapidly completed, working efficiency and safety are improved, and the supporting cylinder has wide application prospects in the fields of industrial production lines, automation equipment and the like. The double-pressurization pneumatic supporting cylinder shows excellent performance and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of starting, and more specifically to a double-pressurized pneumatic support cylinder. Background Art

[0002] In industrial automation and mechanical equipment, pneumatic support cylinders are one of the indispensable key components. Traditional pneumatic support cylinders usually adopt a single piston structure to achieve the extension and retraction of the support rod through the change of air pressure. However, as the requirements of industrial production for equipment accuracy, stability and safety continue to increase, traditional pneumatic support cylinders have gradually become difficult to meet these requirements.

[0003] Traditional pneumatic support cylinders often have problems such as loose support rods and seal failure when they are under heavy loads or working frequently, which not only affects the normal operation of the equipment but also may cause safety hazards. In addition, pneumatic support cylinders with a single piston structure often have a slow speed when the support rod is extended and cannot meet the needs of rapid support; therefore, there is an urgent need to develop a dual-pressurized pneumatic support cylinder that can achieve rapid support and locking of the support rod and improve the stability and safety of the equipment. Utility Model Content

[0004] The purpose of the utility model is: in order to solve the above technical problems, the utility model provides a double-pressurized pneumatic support cylinder that can achieve rapid support and locking of the support rod and improve the stability and safety of the equipment.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] The utility model proposes a double-pressurized pneumatic support cylinder.

[0007] Included are:

[0008] The cylinder body is composed of a front cover, a connecting cover, a cylinder barrel and a rear cover;

[0009] A support rod is assembled in the cylinder body, and one end of the support rod passes through the front cover, and the other end of the support rod is connected to the rear cover through a first spring;

[0010] The jacket is clearance-matched with the outer surface of the support rod;

[0011] The locking sleeve is slidably connected to the outer surface of the jacket through the steel ball;

[0012] The locking piston is fitted with the outer surface of the locking sleeve, and the top end thereof is slidably connected with the inner wall of the cylinder;

[0013] The jacket and the locking piston are connected to the rear cover via a second spring;

[0014] The front piston is matched with the outer surface of the support rod in clearance and is in contact with the front end of the locking piston;

[0015] The cylinder barrel and the connecting cover are both provided with mutually connected air inlet and outlet ports, and the air inlet and outlet ports are located in front of the upper ends of the front piston and the locking piston;

[0016] The jacket has a conical outer wall, the locking sleeve has a conical inner wall, the outer wall width of the jacket close to the front cover is smaller than the outer wall width of the jacket close to the rear cover, and the inner wall width of the locking sleeve close to the front cover is larger than the inner wall width of the locking sleeve close to the rear cover.

[0017] As a preferred technical solution of the utility model, a steel wire retaining ring for the shaft is provided on the outer surface of the front end of the support rod close to the front cover.

[0018] As a preferred technical solution of the utility model, the inner wall of the connecting cover is a raised block for isolating the front piston from the locking piston; a sealing ring is provided between the raised block and the locking piston.

[0019] As a preferred technical solution of the utility model, a sealing ring is provided between the top of the front piston and the connecting cover, and the sealing ring is slidably connected to the inner wall of the connecting cover.

[0020] As a preferred technical solution of the utility model, a sealing ring is provided between the top end of the locking piston and the inner wall of the cylinder.

[0021] As a preferred technical solution of the utility model, a sealing ring is provided between the front piston and the support rod.

[0022] As a preferred technical solution of the utility model, at the connection between the jacket and the support rod, the inner wall of the jacket is designed with threads or the outer wall of the support rod is designed with threads.

[0023] As a preferred technical solution of the utility model, a sealing ring is provided between the connecting cover and the front cover.

[0024] The beneficial effects of the utility model are as follows:

[0025] The utility model uses air pressure control to enable the support cylinder to quickly lock and release the support rod, thereby providing a stable and adjustable supporting force in various applications. The internal design is excellent, and the cooperation of the conical sleeve and the locking sleeve as well as the elasticity of the spring are utilized to ensure the stability of locking and the smoothness of releasing. At the same time, the sealing ring between the components effectively prevents gas leakage, thereby ensuring the sealing and durability of the support cylinder. In addition, the threaded design at the connection between the sleeve and the support rod provides additional locking or adjustment possibilities, further enhancing the practicality and adaptability of the support cylinder. The entire support cylinder has a compact structure and simple operation, and can complete the fixing and loosening of the support rod in a short time, thereby greatly improving work efficiency and safety. Whether in industrial production lines, automation equipment or other occasions requiring stable support, the double-boosted pneumatic support cylinder can exert its excellent performance and reliability, and provide strong support for work. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the cutaway structure of the utility model.

[0027] Figure numerals: 1-cylinder body, 11-front cover, 12-connecting cover, 13-cylinder barrel, 14-rear cover, 2-support rod, 3-first spring, 4-jacket, 5-steel ball, 6-locking sleeve, 7-locking piston, 8-second spring, 9-front piston, 10-inlet and outlet, 1001-wire retaining ring for shaft. DETAILED DESCRIPTION Example 1

[0028] like Figure 1 As shown, the utility model proposes a double-pressurized pneumatic support cylinder.

[0029] Included are:

[0030] The cylinder body is composed of a front cover, a connecting cover, a cylinder barrel and a rear cover;

[0031] A support rod is assembled in the cylinder body, and one end of the support rod passes through the front cover, and the other end of the support rod is connected to the rear cover through a first spring;

[0032] The jacket is clearance-matched with the outer surface of the support rod;

[0033] The locking sleeve is slidably connected to the outer surface of the jacket through the steel ball;

[0034] The locking piston is fitted with the outer surface of the locking sleeve, and the top end thereof is slidably connected with the inner wall of the cylinder;

[0035] The jacket and the locking piston are connected to the rear cover via a second spring;

[0036] The front piston is matched with the outer surface of the support rod in clearance and is in contact with the front end of the locking piston;

[0037] The cylinder barrel and the connecting cover are both provided with mutually connected air inlet and outlet ports, and the air inlet and outlet ports are located in front of the upper ends of the front piston and the locking piston;

[0038] The jacket has a conical outer wall, the locking sleeve has a conical inner wall, the outer wall width of the jacket close to the front cover is smaller than the outer wall width of the jacket close to the rear cover, and the inner wall width of the locking sleeve close to the front cover is larger than the inner wall width of the locking sleeve close to the rear cover.

[0039] Wherein, a steel wire retaining ring for the shaft is arranged on the outer surface of the front end of the support rod close to the front cover.

[0040] Among them, the inner wall of the connecting cover is a raised block, which is used to isolate the front piston from the locking piston; a sealing ring is provided between the raised block and the locking piston.

[0041] Wherein, a sealing ring is provided between the top of the front piston and the connecting cover, and the sealing ring is slidably connected to the inner wall of the connecting cover.

[0042] Wherein, a sealing ring is arranged between the top end of the locking piston and the inner wall of the cylinder.

[0043] Wherein, a sealing ring is arranged between the front piston and the support rod.

[0044] Wherein, at the connection between the jacket and the support rod, the inner wall of the jacket is designed with threads or the outer wall of the support rod is designed with threads.

[0045] Wherein, a sealing ring is arranged between the connecting cover and the front cover.

[0046] Working principle:

[0047] The double-boost pneumatic support cylinder is mainly composed of a cylinder body (including a front cover, a connecting cover, a cylinder barrel and a rear cover), a support rod, a jacket, a locking sleeve, a locking piston and a front piston. A closed space is formed inside the cylinder body. The support rod passes through the front cover and is connected to the rear cover through a first spring, which plays a supporting and resetting role. The jacket and the outer surface of the support rod are in clearance, and the locking sleeve is slidably connected to the outer surface of the jacket through a steel ball, forming an adjustable locking mechanism.

[0048] When gas is introduced into the gas inlet and outlet, the gas first pushes the front piston upward. Since the front piston is in contact with the front end of the locking piston, the upward movement of the front piston will push the locking piston upward as well. As the locking piston rises, the locking sleeve is subjected to an upward pulling force, so that the gap between the tapered outer wall of the jacket and the tapered inner wall of the locking sleeve gradually decreases. When the gap is small enough, the inner wall of the locking sleeve tightly hugs the outer wall of the jacket, thereby realizing the locking function of the support rod. At this time, since the support rod is fixed, the entire support cylinder can provide a stable supporting force.

[0049] When the support rod needs to be released, it is only necessary to stop ventilating or releasing gas to the air inlet and outlet. The front piston starts to move downward under the action of the reduction or disappearance of the gas pressure above and the tension of the first spring. The downward movement of the front piston drives the locking piston to move downward as well. The tension on the locking sleeve is reduced, and the gap between the jacket and the locking sleeve is increased. The locking sleeve no longer tightly holds the jacket, and the support rod is thus released.

[0050] During the entire working process, the sealing rings between the components ensure the gas tightness and prevent gas leakage. The raised block on the inner wall of the connecting cover not only isolates the front piston and the locking piston, but also plays a role in strengthening support and positioning. The threaded design at the connection between the jacket and the support rod provides additional locking or adjustment possibilities. In addition, the steel wire retaining ring for the shaft ensures that the support rod will not completely fall out of the front cover, increasing the safety and reliability of the device.

[0051] In summary, the double-boost pneumatic support cylinder drives the movement of the front piston and the locking piston through the change of air pressure, thereby controlling the locking and releasing between the locking sleeve and the clamping sleeve, thereby realizing the fixing and loosening functions of the support rod.

[0052] The utility model uses air pressure control to enable the support cylinder to quickly lock and release the support rod, thereby providing a stable and adjustable supporting force in various applications. The internal design is excellent, and the cooperation of the conical sleeve and the locking sleeve as well as the elasticity of the spring are utilized to ensure the stability of locking and the smoothness of releasing. At the same time, the sealing ring between the components effectively prevents gas leakage, thereby ensuring the sealing and durability of the support cylinder. In addition, the threaded design at the connection between the sleeve and the support rod provides additional locking or adjustment possibilities, further enhancing the practicality and adaptability of the support cylinder. The entire support cylinder has a compact structure and simple operation, and can complete the fixing and loosening of the support rod in a short time, thereby greatly improving work efficiency and safety. Whether in industrial production lines, automation equipment or other occasions requiring stable support, the double-boosted pneumatic support cylinder can exert its excellent performance and reliability, and provide strong support for work.

[0053] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should be aware that the technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-boosted pneumatic support cylinder, characterized in that: Included are: A cylinder body (1) is composed of a front cover (11), a connecting cover (12), a cylinder barrel (13) and a rear cover (14); A support rod (2) is assembled in the cylinder body (1), and one end of the support rod (2) passes through the front cover (11), and the other end of the support rod (2) is connected to the rear cover (14) via a first spring (3); The jacket (4) is clearance-matched with the outer surface of the support rod (2); The locking sleeve (6) is slidably connected to the outer surface of the jacket (4) via the steel ball (5); A locking piston (7) is fitted onto the outer surface of the locking sleeve (6), and a top end thereof is slidably connected to the inner wall of the cylinder (13); The jacket (4) and the locking piston (7) are connected to the rear cover (14) via a second spring (8); The front piston (9) is clearance-matched with the outer surface of the support rod (2) and is in contact and connection with the front end of the locking piston (7); The cylinder barrel (13) and the connecting cover (12) are both provided with mutually communicating air inlet and outlet ports (10), and the air inlet and outlet ports (10) are located in front of the upper ends of the front piston (9) and the locking piston (7); The jacket (4) has a conical outer wall, and the locking sleeve (6) has a conical inner wall. The width of the outer wall of the jacket (4) close to the front cover (11) is smaller than the width of the outer wall of the jacket (4) close to the rear cover (14), and the width of the inner wall of the locking sleeve (6) close to the front cover (11) is larger than the width of the inner wall of the locking sleeve (6) close to the rear cover (14).

2. A double-boost pneumatic support cylinder according to claim 1, characterized in that: A shaft wire retaining ring (1001) is provided on the outer surface of the front end of the support rod (2) close to the front cover (11).

3. A double-boost pneumatic support cylinder according to claim 1, characterized in that: The inner wall of the connecting cover (12) is a raised block used to isolate the front piston (9) from the locking piston (7); a sealing ring is provided between the raised block and the locking piston (7).

4. A double-boost pneumatic support cylinder according to claim 1, characterized in that: A sealing ring is provided between the top of the front piston (9) and the connecting cover (12), and the front piston (9) is slidably connected to the inner wall of the connecting cover (12).

5. A double-boost pneumatic support cylinder according to claim 1, characterized in that: A sealing ring is provided between the top end of the locking piston (7) and the inner wall of the cylinder (13).

6. A double-boost pneumatic support cylinder according to claim 1, characterized in that: A sealing ring is provided between the front piston (9) and the support rod (2).

7. A double-boost pneumatic support cylinder according to claim 1, characterized in that: At the connection between the jacket (4) and the support rod (2), the inner wall of the jacket (4) is designed with a thread or the outer wall of the support rod (2) is designed with a thread.

8. The double-boost pneumatic support cylinder according to claim 1, characterized in that: A sealing ring is provided between the connecting cover (12) and the front cover (11).

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