Air spring end cover quick mounting assembly easy to operate

Abstract

The utility model discloses a gas spring end cover quick installation assembly easy to operate, and belongs to the technical field of gas spring end covers. Comprising a cylinder barrel and a piston rod, the piston rod is in sealed connection with the inner wall of the cylinder barrel through a piston, a top end cover is installed at one end of the cylinder barrel, a bottom end cover is installed at the other end of the cylinder barrel, and a pressing piece is arranged in the top end cover and comprises a rotary knob and an extrusion ring which are integrally connected through an inner pipe; a second sealing ring is arranged on the outer wall of the inner pipe and located between the outer pipe and the extrusion ring, and when the rotary knob rotates upwards, the second sealing ring is extruded by the extrusion ring to be in a deformation state. According to the air spring end cover rapid installation assembly easy to operate, through the rapid installation mode of the top end cover and the bottom end cover, an operator can easily and rapidly complete installation and maintenance of an air spring, and time and labor cost are greatly saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air spring end cover technical field, specifically be easy to operate's air spring end cover quick installation assembly. BACKGROUND

[0002] Air spring is usually filled with gas, and the function of spring is realized through the pressure of gas, so that its sealing performance directly affects the working effect, service life and stability of air spring.

[0003] However, in practical application, the end cover mounting mode and sealing structure of the existing air spring often have certain defects. The traditional air spring end cover connection mode is complex, the installation process is tedious, especially the sealing adjustment and replacement and maintenance are more difficult, and often need professional tools and personnel to operate.

[0004] Therefore, developing an air spring end cover assembly that is easy to operate and can be quickly installed has become a problem to be solved in air spring design. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an air spring end cover quick installation assembly that is easy to operate to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an air spring end cover quick installation assembly that is easy to operate, comprising a cylinder and a piston rod, the piston rod is sealingly connected with the inner wall of the cylinder through a piston, one end of the cylinder is provided with a top end cover, the other end of the cylinder is provided with a bottom end cover, the inside of the top end cover is provided with a pressing piece, the pressing piece comprises a knob and a pressing ring, the pressing ring and the knob are integrally connected through an inner tube, a sealing ring two is arranged on the outer wall of the inner tube and located between the outer tube and the pressing ring, when the knob is turned upward, the sealing ring two is in a deformed state under the extrusion of the pressing ring.

[0007] Preferably, the bottom end of the top end cover is integrally connected with an outer tube, and the outer tube is sealingly arranged in the cylinder through a sealing ring one.

[0008] Preferably, the inner tube and the outer tube are screw-connected.

[0009] Preferably, the top end of the cylinder is fixedly connected with a mounting plate, and the top end cover is fixedly connected with the mounting plate through a screw.

[0010] Preferably, the bottom end of the cylinder is provided with a threaded end portion, and the bottom end cover is screw-connected with the cylinder through the threaded end portion.

[0011] Preferably, the inner wall of the bottom end cover is fixedly provided with a limiting ring, and the limiting ring and the threaded end portion are sealingly connected through a sealing washer.

[0012] Preferably, one side of the bottom end cover is provided with a through hole, and the inside of the through hole is sealingly provided with a sealing plug.

[0013] Preferably, the bottom of the bottom end cover is provided with an air inlet channel.

[0014] Compared with the prior art, the utility model has the beneficial effects as follows:

[0015] The utility model discloses an easy-to-operate gas spring end cover quick mounting assembly, through the quick mounting mode of top end cover and bottom end cover, the operator can easily, quickly complete the installation and maintenance of gas spring, and the time and manpower cost are greatly saved. The quick dismounting of top end cover is facilitated through the screw connection and sealing ring one cooperation, and the knob adjustment of compression piece realizes the compression and loosening of sealing ring two, so that the state of sealing ring can be effectively controlled during installation, the sealing effect of gas spring during operation is stronger, and the long-term stable operation of gas spring is ensured. The bottom end cover can be conveniently dismounted through the thread connection and sealing washer cooperation, and the through hole of bottom end cover is designed with a sealing plug, which can discharge residual gas when needed, prevents the bottom end cover from falling off or breaking due to the expansion force of gas, and further guarantees the safety of gas spring during work. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 For the easy-to-operate gas spring end cover quick mounting assembly structure of the utility model Figure One ;

[0017] Figure 2 For the easy-to-operate gas spring end cover quick mounting assembly structure of the utility model Figure Two ;

[0018] Figure 3 For the easy-to-operate gas spring end cover quick mounting assembly structure of the utility model Figure Three ;

[0019] Figure 4 For the easy-to-operate gas spring end cover quick mounting assembly structure of the utility model Figure Four .

[0020] In the drawing: 1, cylinder; 2, piston rod; 3, mounting plate; 4, top end cover; 5, sealing ring one; 6, sealing ring two; 7, knob; 8, bottom end cover; 9, outer tube; 10, inner tube; 11, extrusion ring; 12, via hole; 13, threaded end; 14, limiting ring; 15, sealing washer; 16, air inlet channel; 17, through hole; 18, sealing plug. DETAILED DESCRIPTION

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0022] Please refer to Figures 1-4 The embodiment provides the following technical solutions:

[0023] The air spring end cover quick mounting assembly easy to operate, including cylinder 1 and piston rod 2, piston rod 2 is sealedly connected with the inner wall of cylinder 1 through a piston, one end of cylinder 1 is provided with a top end cover 4, the other end of cylinder 1 is provided with a bottom end cover 8, the inside of top end cover 4 is provided with a pressing part, the pressing part includes a knob 7 and an extrusion ring 11, the extrusion ring 11 and the knob 7 are integrally connected through an inner tube 10, the inside of the pressing part is provided with a through hole 12 for the piston rod 2, the outer wall of inner tube 10 is provided with a sealing ring 2 6, and the sealing ring 2 6 is located between the outer tube 9 and the extrusion ring 11, the inner tube 10 is threadedly connected with the outer tube 9, when the knob 7 is rotated upward, the sealing ring 2 6 is extruded by the extrusion ring 11 and is in a deformed state.

[0024] Specifically, the pressing part has a dustproof effect, the pressing part is embedded in the inside of the top end cover 4 and cannot be detached, the knob 7 is located at the upper end of the top end cover 4, the knob 7 is moved upward by rotating the knob 7, the sealing ring 2 6 is deformed and expands horizontally by being extruded by the extrusion ring 11, so that the sealing ring 2 6 can be tightly attached to the cylinder 1, and the sealing effect is improved, when the knob 7 is rotated downward, the sealing ring 2 6 is released from the pressure and returns to its original state, and if the sealing property of the sealing ring 2 6 cannot be guaranteed during long-term use, the sealing ring 2 6 can be replaced, and the operation is simple and convenient.

[0025] The outer tube 9 is integrally connected with the lower end of the top end cover 4, the outer tube 9 is sealingly arranged in the cylinder 1 through the sealing ring 1 5 on the outer wall, the top end of the cylinder 1 is fixedly connected with a mounting plate 3, and the top end cover 4 is fixedly connected with the mounting plate 3 through screws.

[0026] Specifically, the outer tube 9 is sealingly connected with the inner wall of the cylinder 1 through the sealing ring 1 5 on the outer wall, effectively preventing gas leakage, further ensuring the sealing property and stability of the air spring during operation, and the top end cover 4 is fixedly connected with the mounting plate 3 through screws, so that the connection between the top end cover 4 and the cylinder 1 is more firm, and can withstand the upward rotating force of the pressing part, and the mounting mode of the top end cover 4 is simple and easy to operate.

[0027] The bottom end of the cylinder 1 is provided with a threaded end 13, and the bottom end cover 8 is threadedly connected with the cylinder 1 through the threaded end 13. The inner wall of the bottom end cover 8 is fixedly provided with a limiting ring 14, and the limiting ring 14 and the threaded end 13 are sealed by a sealing washer 15.

[0028] Specifically, the upper end of the limiting ring 14 is formed with a groove for accommodating the threaded end 13, and the threaded end 13 is limited in connection. The bottom end cover 8 is installed in a threaded connection manner, which is simple, fast, easy to operate. The threaded end 13 of the cylinder 1 and the bottom end cover 8 are sealed by the sealing washer 15, which effectively prevents gas leakage and ensures the sealing performance of the gas spring during operation.

[0029] A through hole 17 is formed in one side of the bottom end cover 8, and a sealing plug 18 is sealingly arranged in the through hole 17. An air inlet channel 16 is formed in the bottom of the bottom end cover 8. Correspondingly, the cylinder 1 is provided with an exhaust port in communication therewith. The air inlet channel 16 facilitates the compressed gas to enter the inner cavity of the cylinder 1, and the piston rod 2 extends under the thrust of the compressed gas.

[0030] Specifically, in the case of long-term use or improper maintenance of the gas spring, residual gas may be generated in the gas spring. Under certain conditions, these residual gases may cause abnormal increase of the internal pressure of the gas spring, thereby causing safety hazards and affecting the normal operation of the gas spring. The sealing plug 18 is removed, and the through hole 17 facilitates the discharge of the residual gas in the cylinder 1, preventing the bottom end cover 8 from being separated from the cylinder 1 or being broken under the action of the expansion force of the residual gas, thereby ensuring the normal operation of the gas spring and prolonging the service life of the gas spring.

[0031] Working principle: Before the gas spring is operated, the top end cover 4 and the bottom end cover 8 are installed in sequence. The top end cover 4 is sealingly connected with the cylinder 1 through the sealing ring one 5 on the outer tube 9, and then the top end cover 4 is fixed by screws. The knob 7 is located at the upper end of the top end cover 4 and can be adjusted by rotating to adjust the compression member. When the knob 7 is rotated, the knob 7 moves upward, driving the extrusion ring 11 to extrude the sealing ring two 6, so that the sealing ring two 6 is deformed and expands horizontally, forming a stronger sealing effect. If the sealing performance of the sealing ring two 6 cannot be guaranteed after long-term use, the knob 7 can be rotated downward to loosen and release the compression force, and the sealing ring two 6 returns to its original state. If the sealing performance decreases, the sealing ring two 6 can be simply replaced, which is convenient to operate. The bottom end cover 8 is threadedly connected with the cylinder 1 through the threaded end 13, and the limiting ring 14 and the threaded end 13 are sealingly connected through the sealing washer 15. The sealing plug 18 is arranged in the through hole 17 of the bottom end cover 8 and can be removed when needed to discharge the residual gas in the gas spring, preventing the bottom end cover 8 from being separated or broken due to the expansion of the residual gas.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas spring end cap quick mounting assembly easy to operate, comprising a cylinder (1) and a piston rod (2), the piston rod (2) is sealedly connected with the inner wall of the cylinder (1) through a piston, characterized in that: The cylinder (1) is provided with a top end cover (4) at one end, the bottom end of the top end cover (4) is integrally connected with an outer tube (9), the other end of the cylinder (1) is provided with a bottom end cover (8), the inside of the top end cover (4) is provided with a pressing part, the pressing part comprises a knob (7) and a pressing ring (11), the pressing ring (11) and the knob (7) are integrally connected through an inner tube (10), the outer wall of the inner tube (10) is provided with a sealing ring (6), the sealing ring (6) is located between the outer tube (9) and the pressing ring (11), when the knob (7) is rotated upwards, the sealing ring (6) is extruded by the pressing ring (11) and is in a deformed state.

2. An easy-to-operate gas spring end cap quick mounting assembly as claimed in claim 1, wherein: The outer tube (9) is sealingly arranged in the cylinder (1) through a sealing ring (5).

3. An easy-to-operate gas spring end cap quick mounting assembly as claimed in claim 2, wherein: The inner tube (10) is threadedly connected with the outer tube (9).

4. An easy-to-operate gas spring end cap quick mounting assembly as claimed in claim 1, wherein: The top end of the cylinder (1) is fixedly connected with a mounting plate (3), and the top end cover (4) is fixedly connected with the mounting plate (3) through screws.

5. An easy-to-operate gas spring end cap quick mounting assembly as claimed in claim 1, wherein: The bottom end of the cylinder (1) is provided with a threaded end (13), and the bottom end cover (8) is threadedly connected with the cylinder (1) through the threaded end (13).

6. An easy-to-operate gas spring end cap quick mounting assembly as defined in claim 1, wherein: The inner wall of the bottom end cover (8) is fixedly provided with a limiting ring (14), and the limiting ring (14) and the threaded end (13) are sealed through a sealing washer (15).

7. An easy-to-operate gas spring end cap quick mounting assembly as claimed in claim 1, wherein: One side of the bottom end cover (8) is provided with a through hole (17), and the inside of the through hole (17) is sealingly provided with a sealing plug (18).

8. An easy-to-operate gas spring end cap quick mounting assembly as defined in claim 1, wherein: The bottom of the bottom end cover (8) is provided with an air inlet channel (16).

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