Fixed air cylinder for vehicle

Abstract

The utility model discloses a fixed air cylinder for a vehicle. The fixed air cylinder comprises a cylinder barrel, an end cover, a piston, a piston rod and a sealing piece, the cylinder barrel comprises a rotating part, a positioning part and a compression part which are integrally connected; a compression cavity for the piston rod to push and slide is formed in the compression part, the compression cavity comprises a first compression cavity and a second compression cavity, and a first air inlet hole and a second air inlet hole are formed in the cylinder barrel; the first air inlet hole is communicated with the first compression cavity, and the second air inlet hole is communicated with the second compression cavity; the cylinder barrel is further provided with an anti-explosion hole and a monitoring hole, the cavity of the second air inlet hole is communicated with the anti-explosion hole and the monitoring hole at the same time, the other side of the anti-explosion hole is connected with an anti-explosion valve, and the other end of the monitoring hole is connected with an air pressure monitoring assembly. According to the utility model, the double-acting cylinder is adopted, and the multi-hole design is adopted, so that the safety performance of the cylinder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinders, in particular to a fixed cylinder for a vehicle. Background Art

[0002] Cylinders are a commonly used pneumatic component in the machinery industry and are well known and common. Existing cylinders usually include a cylinder barrel, an end cover, a piston, a piston rod, and a seal. Among them, the cylinder is a cylindrical metal part that guides the piston to perform linear reciprocating motion in the cylinder.

[0003] At present, a double-acting cylinder has a piston that uses a spring or other similar elastic member to assist in resetting between the two extreme positions in the chamber. However, the air pressure on both sides of the piston will cause wear in the chamber of the cylinder due to the power error of the intake valve, shortening the service life of the cylinder and even increasing the risk of cylinder explosion. In order to be able to control the air pressure on one side of the cylinder at all times, it is necessary to provide a fixed cylinder for vehicles to solve the above problem. Utility Model Content

[0004] The present application provides a vehicle-use fixed cylinder, which is in the form of a double-acting cylinder and has a multi-hole design to improve the safety performance of the cylinder.

[0005] A vehicle fixed cylinder provided by the present application comprises a cylinder barrel, an end cover, a piston, a piston rod and a sealing member; the cylinder barrel comprises a rotating portion, a positioning portion and a compression portion which are integrally connected; a compression chamber for the piston rod to push and slide is formed in the compression portion, and the compression chamber comprises a first compression chamber located on one side of the piston and a second compression chamber located on the other side of the piston, and the second compression chamber is close to the bottom of the cylinder barrel; a first air inlet hole and a second air inlet hole are provided at the cylinder barrel, and the second air inlet hole is close to the bottom of the cylinder barrel; the first air inlet hole is connected to the first compression chamber, and the second air inlet hole is connected to the second compression chamber; the cylinder barrel is also provided with an explosion-proof hole and a monitoring hole, and the chamber of the second air inlet hole is simultaneously connected to the explosion-proof hole and the monitoring hole, the other side of the explosion-proof hole is connected to an explosion-proof valve, and the other end of the monitoring hole is connected to an air pressure monitoring component.

[0006] Optionally, the cylinder barrel is provided with an intake passage connected to the second intake hole, and the intake passage includes a first channel connected to the explosion-proof hole, a second channel connected to the monitoring hole, and a third channel connected to both the first channel and the second channel; the cylinder barrel is also provided with a compression hole connected to the second compression chamber, and the intake passage also includes a fourth channel interconnected with the compression hole and the third channel.

[0007] Optionally, a positioning strip extends from the positioning portion, and the first air inlet hole, the second air inlet hole and the air inlet channel are all opened in the positioning strip.

[0008] Optionally, the explosion-proof hole is located on the positioning strip, the explosion-proof hole is opened on the same side of the first air inlet hole and the second air inlet hole, and the monitoring hole is opened on the side wall relative to the length direction of the positioning strip.

[0009] Optionally, a positioning hole fixed to the air intake valve is provided on the positioning strip.

[0010] Optionally, the first air inlet hole and the second air inlet hole are countersunk holes located on the positioning bar.

[0011] Optionally, a rotating hole is provided on the rotating part.

[0012] Optionally, a sealing groove for a sealing ring to be clamped is provided on a side of the cylinder barrel facing away from the bottom of the cylinder barrel.

[0013] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0014] 1. The air pressure detection component in the present application is used to monitor the pressure in the second compression chamber, and at the same time control the opening and closing of the explosion-proof valve according to the pressure threshold, thereby increasing the safety of the cylinder.

[0015] 2. The present application adopts four channels of the air intake passage to realize the interconnection between the second air intake hole and each pipeline in the second compression chamber, thereby reducing the wear of the cylinder chamber, increasing the service life of the cylinder, and reducing the risk of cylinder explosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of a vehicle-used fixed cylinder in an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the overall structure of the cylinder barrel of the embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the cylinder barrel of the embodiment of the present application;

[0020] Figure 4It is a schematic diagram of the overall structure of the cylinder barrel of the embodiment of the present application.

[0021] Explanation of the accompanying drawings: 1. Cylinder; 11. Rotating part; 111. Rotating hole; 112. Sealing groove; 113. Compression hole; 12. Positioning part; 121. Positioning strip; 122. Positioning hole; 13. Compression part; 131. First compression chamber; 132. Second compression chamber; 14. First air inlet hole; 15. Second air inlet hole; 16. Explosion-proof hole; 17. Monitoring hole; 181. First channel; 182. Second channel; 183. Third channel; 184. Fourth channel; 2. Piston rod. DETAILED DESCRIPTION

[0022] The present application provides a vehicle-use fixed cylinder, which is in the form of a double-acting cylinder and has a multi-hole design to improve the safety performance of the cylinder.

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products, or devices.

[0025] Reference Figure 1 A vehicle fixed cylinder of this embodiment includes a cylinder barrel 1, an end cover, a piston, a piston rod 2 and a sealing member.

[0026] Reference Figure 2 and Figure 3The cylinder 1 includes a rotating part 11, a positioning part 12 and a compression part 13 which are integrally connected. A rotating hole 111 is provided on the rotating part 11, which is then hinged with automobile parts to achieve the effect of a cylinder; the positioning part 12 is fixed to the intake valve, so that the compressed air in the intake valve enters the compression part 13. A compression chamber for the piston rod 2 to push and slide is formed in the compression part 13, and the compression chamber includes a first compression chamber 131 located on one side of the piston and a second compression chamber 132 located on the other side of the piston, and the second compression chamber 132 is close to the bottom of the cylinder 1. The dotted line in the figure represents the position of the piston, wherein the chamber sizes of the first compression chamber 131 and the second compression chamber 132 change with the change of the piston position.

[0027] The cylinder 1 is provided with a first air inlet hole 14 and a second air inlet hole 15, and the second air inlet hole 15 is close to the bottom of the cylinder 1. The first air inlet hole 14 is connected to the first compression chamber 131, and the second air inlet hole 15 is connected to the second compression chamber 132.

[0028] Specifically, the cylinder barrel 1 is also provided with an explosion-proof hole 16 and a monitoring hole 17. At the same time, the cylinder barrel 1 is also provided with a compression hole 113 connected to the second compression chamber 132. The chamber of the second air inlet hole 15 is simultaneously connected to the explosion-proof hole 16 and the monitoring hole 17. The other side of the explosion-proof hole 16 is connected to the explosion-proof valve, and the other end of the monitoring hole 17 is connected to the air pressure monitoring component. In the present application, the air pressure detection component is used to monitor the pressure in the second compression chamber 132, and at the same time, according to the pressure threshold, to control the opening and closing of the explosion-proof valve, thereby increasing the safety of the cylinder.

[0029] Furthermore, the cylinder barrel 1 is provided with an air intake channel connected to the second air intake hole 15, and the air intake channel includes a first channel 181, a second channel 182, a third channel 183 and a fourth channel 184. Among them, the first channel 181 is connected to the explosion-proof hole 16, the second channel 182 is connected to the monitoring hole 17, the fourth channel 184 is connected to the compression hole 113, and the third channel 183 is connected to the first channel 181, the second channel 182 and the fourth channel 184 at the same time, thereby dynamically controlling the pressure of the second compression chamber 132, thereby increasing the safety performance of the cylinder.

[0030] Reference Figure 4, a positioning strip 121 extends from the positioning portion 12, and the first air inlet hole 14, the second air inlet hole 15 and the air inlet passage are all opened in the positioning strip 121. In the embodiment of the present application, the positioning strip 121 is closely connected to the air inlet valve. Therefore, the explosion-proof hole 16 is located on the positioning strip 121, and the explosion-proof valve is connected to the air inlet valve (not clearly shown in the figure of the embodiment of the present application). In addition, the explosion-proof hole 16 is opened on the same side of the first air inlet hole 14 and the second air inlet hole 15, and the monitoring hole 17 is opened on the side wall relative to the length direction of the positioning strip 121, thereby increasing the optimization rate of air. In addition, the first air inlet hole 14 and the second air inlet hole 15 are located on the countersunk holes adopted on the positioning strip 121, thereby improving the sealing between the air inlet valve and the first air inlet hole 14 and the second air inlet hole 15, thereby improving the efficiency of the cylinder.

[0031] In addition, a positioning hole 122 fixed to the intake valve is provided on the positioning strip 121. The positioning hole 122 can be fixedly connected to the intake valve through a screw hole, thereby increasing the connection stability between the cylinder barrel 1 and the intake valve.

[0032] Reference Figure 3 A sealing groove 112 for a sealing ring to engage is provided on one side of the cylinder barrel 1 facing away from the bottom of the cylinder barrel 1, thereby ensuring sealing of the reciprocating motion of the piston rod 2 in the compression chamber and improving the efficiency of the cylinder operation.

[0033] It should be noted that the above-mentioned sequence of the embodiments of the present application is only for description and does not represent the advantages and disadvantages of the embodiments. And the above-mentioned specific embodiments of this specification are described. Other embodiments are within the scope of the attached claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0034] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

[0035] This specification and drawings are merely exemplary illustrations of the present application and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, a person skilled in the art may make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalents, the present application intends to include these modifications and variations.

Claims

1. A vehicle-use fixed cylinder, comprising a cylinder barrel (1), an end cover, a piston, a piston rod (2) and a sealing member; characterized in that: The cylinder barrel (1) comprises a rotating portion (11), a positioning portion (12) and a compression portion (13) which are integrally connected; a compression chamber for the piston rod (2) to push and slide is formed in the compression portion (13), and the compression chamber comprises a first compression chamber (131) located on one side of the piston and a second compression chamber (132) located on the other side of the piston, and the second compression chamber (132) is close to the bottom of the cylinder barrel (1); a first air inlet hole (14) and a second air inlet hole (15) are provided in the cylinder barrel (1), and the second air inlet hole (15) is close to the bottom of the cylinder barrel (1); the first air inlet hole (14) is connected to the first compression chamber (131), and the second air inlet hole (15) is connected to the second compression chamber (132); The cylinder (1) is also provided with an explosion-proof hole (16) and a monitoring hole (17); the chamber of the second air inlet hole (15) is simultaneously connected to the explosion-proof hole (16) and the monitoring hole (17); the other side of the explosion-proof hole (16) is connected to an explosion-proof valve; and the other end of the monitoring hole (17) is connected to an air pressure monitoring component.

2. The vehicle-use fixed cylinder according to claim 1, characterized in that: The cylinder barrel (1) is provided with an air intake passage connected to the second air intake hole (15), and the air intake passage comprises a first passage (181) connected to the explosion-proof hole (16), a second passage (182) connected to the monitoring hole (17), and a third passage (183) connected to both the first passage (181) and the second passage (182); the cylinder barrel (1) is also provided with a compression hole (113) connected to the second compression chamber (132), and the air intake passage further comprises a fourth passage (184) interconnected with the compression hole (113) and the third passage (183).

3. The vehicle-use fixed cylinder according to claim 2, characterized in that: A positioning strip (121) extends from the positioning portion (12), and the first air inlet hole (14), the second air inlet hole (15) and the air inlet channel are all arranged in the positioning strip (121).

4. The vehicle-use fixed cylinder according to claim 3, characterized in that: The explosion-proof hole (16) is located on the positioning strip (121), the explosion-proof hole (16) is opened on the same side of the first air inlet hole (14) and the second air inlet hole (15), and the monitoring hole (17) is opened on the side wall relative to the length direction of the positioning strip (121).

5. The vehicle-use fixed cylinder according to claim 4, characterized in that: The positioning strip (121) is provided with a positioning hole (122) for fixing the air intake valve.

6. The vehicle-use fixed cylinder according to claim 4, characterized in that: The first air inlet hole (14) and the second air inlet hole (15) are countersunk holes located on the positioning strip (121).

7. The vehicle-use fixed cylinder according to claim 1, characterized in that: The rotating part (11) is provided with a rotating hole (111).

8. The vehicle-use fixed cylinder according to claim 1, characterized in that: A sealing groove (112) for a sealing ring to be clamped is provided on a side of the cylinder barrel (1) facing away from the bottom of the cylinder barrel (1).

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