Automobile door opening and closing blocking air cylinder

Abstract

The utility model relates to an automobile door opening and closing blocking air cylinder which comprises an installation base, a driving air cylinder, a triangular plate, a driving plate, a driving shaft and a baffle arranged on the installation base in a rotating mode, a through hole matched with the driving shaft is formed in the baffle, the driving shaft is inserted in the through hole in a penetrating mode, and linkage matching of the baffle and the driving shaft is formed. The driving air cylinder comprises a cylinder barrel, a front end cover arranged at one end of the cylinder barrel, a rear end cover arranged at the other end of the cylinder barrel and a piston assembly arranged in the cylinder barrel, and the piston assembly comprises a piston arranged in the cylinder barrel in a sliding mode and a piston rod arranged on the piston in a linkage mode and used for driving the triangular plate to act. And a buffer gasket matched with the piston is arranged in the front end cover. The utility model has the advantages of simple structure, stable and reliable performance, convenience in installation and long service life.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic components, in particular to a blocking cylinder for an automobile door opening and closing. Background Art

[0002] The automobile door blocking cylinder is a special type of cylinder, which is mainly used for positioning and stopping during the opening and closing process of automobile doors. It is also called a stop cylinder, an energy-blocking cylinder or a fixed-rod cylinder. The blocking cylinder realizes its function through the reciprocating motion of the internal piston. When the piston moves forward, it compresses the air in the cylinder and generates a certain pressure. When the set working stroke is reached, the piston will stop moving, and the door will be blocked at the set position to ensure that the opening and closing process of the door can be accurately controlled, thereby ensuring the normal use of the automobile door and the safety of the passengers. The piston of the existing automobile door blocking cylinder hits the front cover, resulting in a short product life, and the structural design of the automobile door blocking cylinder is complex, and the installation is not convenient. The working reliability of the automobile door blocking cylinder is not high, and the smooth opening and closing of the automobile door cannot be ensured. Summary of the invention

[0003] The utility model aims to overcome the defects of the prior art and provide a car door opening and closing blocking cylinder which has a simple structure, stable and reliable performance, convenient installation and long service life.

[0004] To achieve the above-mentioned purpose, the utility model adopts a car door opening and closing blocking cylinder, including a mounting seat, a driving cylinder arranged on the mounting seat, a triangular plate rotatably arranged on the mounting seat and linked with the driving cylinder, a driving plate linked with the triangular plate, a driving shaft linked with one end of the driving plate, and a baffle rotatably arranged on the mounting seat, the baffle is provided with a through hole matched with the driving shaft, the driving shaft is inserted in the through hole, and constitutes a linkage between the baffle and the driving shaft, the driving cylinder includes a cylinder barrel, a front end cover arranged on one end of the cylinder barrel, a rear end cover arranged on the other end of the cylinder barrel, and a piston assembly arranged in the cylinder barrel, the piston assembly includes a piston slidably arranged in the cylinder barrel, a piston rod linked with the piston and used to drive the triangular plate to move, and a buffer gasket matched with the piston is arranged in the front end cover.

[0005] The beneficial effects of the above structure are as follows: The driving cylinder drives the baffle to act through the triangular plate, the driving plate, and the driving shaft. This structure is simple in design, has high working reliability, and can ensure sufficient strength and rigidity. It can enable the baffle to reliably perform the opening or closing action, thereby ensuring the smooth opening and closing of the car door. A buffer gasket that cooperates with the piston is provided inside the front end cover of the driving cylinder. The buffer gasket can play a buffering role, avoid damaging the piston, and has a longer service life. Therefore, the car door opening and closing blocking cylinder has the advantages of simple structure, stable and reliable performance, convenient installation, and long service life.

[0006] Particularly, Y-shaped rings, magnetic rings, and wear-resistant bands that cooperate with the cylinder barrel are respectively arranged on the outer peripheral wall of the piston. The Y-shaped rings can enhance the sealing performance between the piston and the cylinder barrel, and the wear-resistant bands can enhance the wear resistance of the piston, thereby being beneficial to extending the service life of the car door opening and closing blocking cylinder.

[0007] Particularly, a positioning groove that cooperates with the baffle is provided at one end of the mounting seat. The positioning groove plays a positioning role for the baffle, can ensure that the baffle can act reliably, and is beneficial to improving the working reliability of the car door opening and closing blocking cylinder.

[0008] Particularly, a positioning groove that cooperates with the piston rod is provided on the piston. One end of the piston rod is inserted into the positioning groove. A sealing ring is provided between the piston rod and the piston, and bolts that are connected to the piston rod are provided on the piston. The piston rod is inserted into the positioning groove of the piston, and the piston and the piston rod are connected by bolts, thereby facilitating the assembly of the piston and the piston rod, and the assembly is more convenient.

[0009] Particularly, two support arms are symmetrically provided at the other end of the mounting seat. Fasteners that are connected to the front end cover are provided on the two support arms. The mounting seat is connected to the front end cover through the two support arms, thereby ensuring that the connection between the mounting seat and the driving cylinder is more compact and firm. Description of the Drawings

[0010] Figure 1 It is a three-dimensional view of an embodiment of the present utility model.

[0011] Figure 2 It is a cross-sectional view of an embodiment of the present utility model.

[0012] Figure 3 It is an exploded view of an embodiment of the present utility model. Detailed Embodiment

[0013] Such as Figures 1 to 3As shown, the embodiment of the utility model is a car door blocking cylinder, comprising a mounting seat 10, a driving cylinder 20 arranged on the mounting seat 10, a triangular plate 11 rotatably arranged on the mounting seat 10 and linked with the driving cylinder 20, a driving plate 12 linked with the triangular plate 11, a driving shaft 13 linked with one end of the driving plate 12, and a baffle 14 rotatably arranged on the mounting seat 10, wherein the baffle 14 is provided with a through hole 141 matched with the driving shaft 13, and the driving shaft 13 is inserted into the through hole 141. The driving cylinder 20 comprises a cylinder 21, a front end cover 22 arranged on one end of the cylinder 21, a rear end cover 23 arranged on the other end of the cylinder 21, and a piston assembly 24 arranged in the cylinder 21. The piston assembly 24 comprises a piston 241 slidably arranged in the cylinder 21, a piston rod 242 arranged on the piston 241 and used to drive the triangular plate 12 to move, and a buffer washer 25 matched with the piston 241 is arranged in the front end cover 22. The outer peripheral wall of the piston 241 is respectively provided with a Y-shaped ring 2411, a magnetic ring 2412, and a wear-resistant belt 2413 matched with the cylinder 21. The Y-shaped ring can enhance the sealing performance between the piston and the cylinder, and the wear-resistant belt can enhance the wear resistance of the piston, thereby helping to extend the service life of the automobile opening and closing door blocking cylinder.

[0014] like Figure 2 and 3 As shown, a positioning groove 101 matched with the baffle 14 is provided on one end of the mounting seat 10. The positioning groove plays a positioning role on the baffle, which can ensure that the baffle can move reliably, which is conducive to improving the working reliability of the automobile door opening and closing blocking cylinder. The piston 241 is provided with a positioning groove 2414 matched with the piston rod 242, one end of the piston rod 242 is inserted in the positioning groove 2414, a sealing ring 26 is provided between the piston rod 242 and the piston 241, and a bolt 27 connected with the piston rod 242 is provided on the piston 241. The piston rod is inserted in the positioning groove of the piston, and the piston and the piston rod are connected by bolts, so as to facilitate the assembly of the piston and the piston rod, and the assembly is more convenient. Two support arms 102 are symmetrically provided on the other end of the mounting seat 10, and the two support arms 102 are provided with fasteners 15 connected with the front end cover 22. The mounting seat is connected to the front end cover through the two support arms, so as to ensure that the connection between the mounting seat and the driving cylinder is more compact and firm.

[0015] The driving cylinder drives the baffle to act through the triangular plate, the driving plate and the driving shaft. This structural design is simple, with high working reliability, and can ensure sufficient strength and rigidity. It can enable the baffle to reliably perform the opening or closing action, thus ensuring the smooth opening and closing of the car door. A buffer washer matched with the piston is arranged inside the front end cover of the driving cylinder. The buffer washer can play a buffering role, avoid damaging the piston, and has a longer service life. Therefore, the car door opening and closing blocking cylinder has the advantages of simple structure, stable and reliable performance, convenient installation and long service life.

Claims

1. An automobile door opening and closing blocking cylinder, characterized in that: It includes a mounting base, a driving cylinder arranged on the mounting base, a triangular plate rotatably arranged on the mounting base and in linkage cooperation with the driving cylinder, a driving plate in linkage cooperation with the triangular plate, a driving shaft linked and arranged at one end of the driving plate, and a baffle plate rotatably arranged on the mounting base. A through hole matching with the driving shaft is arranged on the baffle plate. The driving shaft penetrates through the through hole and forms a linkage cooperation between the baffle plate and the driving shaft. The driving cylinder includes a cylinder barrel, a front end cover arranged at one end of the cylinder barrel, a rear end cover arranged at the other end of the cylinder barrel, and a piston assembly arranged in the cylinder barrel. The piston assembly includes a piston slidably arranged in the cylinder barrel and a piston rod linked and arranged on the piston and used for driving the triangular plate to act. A buffer washer matching with the piston is arranged in the front end cover.

2. The automotive door opening / closing blocking cylinder according to claim 1, wherein: Y-shaped rings, magnetic rings and wear-resistant bands matching with the cylinder barrel are respectively arranged on the outer peripheral wall of the piston.

3. The automotive door opening / closing blocking cylinder according to claim 1 or 2, characterized in that: A positioning groove matching with the baffle plate is arranged at one end of the mounting base.

4. The automotive door opening and closing blocking cylinder according to claim 1 or 2, characterized in that: A positioning groove matching with the piston rod is arranged on the piston. One end of the piston rod penetrates through the positioning groove. A sealing ring is arranged between the piston rod and the piston, and a bolt connecting the piston rod is arranged on the piston.

5. The automotive door opening / closing blocking cylinder according to claim 1 or 2, characterized in that: Two support arms are symmetrically arranged at the other end of the mounting base, and fasteners connecting with the front end cover are arranged on the two support arms.

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