Aluminum alloy circular mini air cylinder

Abstract

The utility model relates to an aluminum alloy round mini air cylinder which comprises a rear end cover, the front end of the rear end cover is connected with a connecting ring, the front end of the connecting ring is connected with a cylinder barrel, the front end of the cylinder barrel is connected with a first front end cover, the front end of the first front end cover is connected with a second front end cover, and a piston rod is arranged in the center of the front end of the second front end cover. Air inlets are formed in the surfaces of the connecting rings; a piston assembly is arranged in the rear end of the cylinder barrel; the whole mini air cylinder is provided with the rear end cover, the cylinder barrel, the first front end cover and the second front end cover, the internal sealing and connecting effect is good, the mini air cylinder is small in diameter, good in sealing effect, good in sealing effect, good in sealing effect and good in sealing effect, the service life of the mini air cylinder is prolonged, and the service life of the mini air cylinder is prolonged. Moreover, the limiting block is arranged on the second piston rod, so that the extension stability of the whole piston rod is better.

Description

Technical Field

[0001] This utility model relates to the field of mini cylinder transmission technology, and in particular to an aluminum alloy circular mini cylinder. Background Technology

[0002] In pneumatic transmission, pneumatic actuators convert the pressure energy of compressed gas into mechanical energy. Cylinders come in two types: those that perform reciprocating linear motion and those that perform reciprocating oscillating motion. Cylinders that perform reciprocating linear motion can be further divided into four types: single-acting cylinders, double-acting cylinders, diaphragm cylinders, and impact cylinders.

[0003] ① Single-acting cylinder: There is a piston rod at only one end. Air is supplied from one side of the piston to generate air pressure. The air pressure pushes the piston to extend and is pushed back by spring or its own weight.

[0004] ② Double-acting cylinder: It alternately supplies air from both sides of the piston and outputs force in one or two directions;

[0005] ③ Diaphragm cylinder: A diaphragm replaces the piston, outputting force in only one direction and returning to its original position with a spring. It has good sealing performance but a short stroke.

[0006] ④ Impact cylinder: This is a new type of component that converts the pressure energy of compressed gas into the kinetic energy of the piston moving at high speed (10-20 m / s) to do work. Existing mini cylinders have poor sealing and dust prevention effects, short cylinder length, and excessively large cylinder diameter.

[0007] Patent No. CN202120601999.0 discloses a mini cylinder, which consists of a cylinder barrel, an upper cylinder head, a lower cylinder head, a piston rod, a movable piston, and a compensation mechanism. The upper and lower cylinder heads are fixedly installed at the upper and lower ends of the cylinder barrel, respectively. A first air inlet / outlet and a second air inlet / outlet are respectively opened through the side walls of the upper and lower cylinder heads. The piston rod is set inside the cylinder barrel, and the movable piston and the compensation mechanism are sleeved on the piston rod. By improving the traditional buffer ring inside the cylinder through the compensation mechanism, the overall size of the device can remain unchanged and the overall device can be kept small, while the performance of the device is better than that of existing mini cylinders. However, this mini cylinder has the following problems: First, it has a large diameter and a short length, resulting in a small range of applications. Second, the long diameter leads to technical problems such as poor connection stability, poor sealing effect, and poor dust prevention effect. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by connecting the cylinder barrel to the rear end cover and then connecting the first and second front end covers, resulting in a smaller diameter, a longer length, and a wider range of applications for the entire mini cylinder. Furthermore, a limiting block is set on the second piston rod, which solves the technical problem of poor piston rod extension stability in existing technologies.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A round mini cylinder made of aluminum alloy includes a rear end cover, a connecting ring connected to the front end of the rear end cover, a cylinder barrel connected to the front end of the connecting ring, a first front end cover connected to the front end of the cylinder barrel, a second front end cover connected to the front end of the first front end cover, and a piston rod provided at the center of the front end of the second front end cover.

[0011] A connecting ring, wherein an air inlet is provided on the surface of the connecting ring;

[0012] A cylinder barrel, wherein a piston assembly is provided inside the rear end of the cylinder barrel;

[0013] The second front end cover has a second piston rod inside. The rear end surface of the second piston rod has symmetrically arranged limiting blocks, and the front end of the second piston rod has a copper plug. The front end of the copper plug has two identical nuts, and the front end of the nuts is fixedly connected to the piston rod.

[0014] As a preferred embodiment, the piston assembly includes a first O-ring, a shaped ring at the front end of the first O-ring, a piston connected to the inner side of the shaped ring, a piston sealing ring at the front end of the shaped ring, an anti-collision pad at the front end of the piston sealing ring, and a first piston rod fixedly connected to the center position of the front end of the piston.

[0015] As a preferred embodiment, the first front cover has a second O-ring at its rear end and a third O-ring at its front end. The first front cover has the same mounting holes at both the front and rear ends on one side, and an air outlet is provided on the upper right side of the mounting holes.

[0016] As a preferred embodiment, a dustproof ring is provided on the inner side of the rear end of the second front cover, and a third O-ring is provided at the rear end of the dustproof ring.

[0017] As a preferred embodiment, the front end surface of the piston rod is provided with a threaded connection groove.

[0018] As another preferred embodiment, the front end of the rear end cover is provided with a threaded connecting ring, the rear end of the threaded connecting ring is fixedly connected to a connecting ring, and the front end of the threaded connecting ring is threadedly connected to the cylinder. A No. 1 O-ring is provided at the connection position between the threaded connecting ring and the cylinder.

[0019] The beneficial effects of this utility model are:

[0020] (1) In this utility model, a rear end cover is set, and a threaded connecting ring is connected to the front end of the rear end cover. The threaded connecting ring is used to seal the cylinder. Then, an air inlet is set on the connecting ring, and the piston assembly is set at the front end of the air inlet. In this way, the air intake air in the air inlet compresses the piston to move forward, thereby causing the piston rod to extend. The principle is simple and the connection is tight.

[0021] (2) In this utility model, a second piston rod is set inside the second front end cover, and a limiting block is fixedly connected to the second piston rod. The limiting block is a set of symmetrically arranged protruding metal blocks, and the inner wall of the second piston rod is provided with a groove that matches the shape of the limiting block, so as to facilitate the back and forth sliding of the limiting block and make the piston rod extension more stable.

[0022] (3) In this utility model, by setting a first front cover, a set of mounting holes are set on the first front cover to facilitate the fixed installation of the cylinder and the second front cover, thereby lengthening the entire mini cylinder, making the diameter of the entire mini cylinder smaller and the application range wider. Then, an air outlet is installed on the other side of the mounting hole, so that the entire mini cylinder can perform normal forward and backward extension movements. The principle is simple, the sealing is good, and the diameter is smaller and more mini.

[0023] In summary, this mini cylinder has the advantages of smaller diameter, longer length, better extension stability, and better connection sealing, making it particularly suitable for the field of mini cylinder transmission technology. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the position and structure of the piston assembly in this utility model.

[0027] Figure 3 This is a schematic diagram of the dustproof ring in this utility model. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0029] Example 1

[0030] like Figures 1 to 3 As shown, this utility model provides an aluminum alloy circular mini cylinder, including a rear end cover 1, a connecting ring 2 connected to the front end of the rear end cover 1, a cylinder barrel 3 connected to the front end of the connecting ring 2, a first front end cover 4 connected to the front end of the cylinder barrel 3, a second front end cover 5 connected to the front end of the first front end cover 4, and a piston rod 6 provided at the center of the front end of the second front end cover 5.

[0031] Connecting ring 2, the surface of which is provided with an air inlet 21;

[0032] Cylinder 3, with piston assembly 31 provided inside the rear end of cylinder 3;

[0033] The second front end cover 5 has a second piston rod 51 inside. The rear end surface of the second piston rod 51 is symmetrically provided with limiting blocks 52, and the front end of the second piston rod 51 is provided with a copper plug 53. The front end of the copper plug 53 is provided with two identical nuts 54. The front end of the nuts 54 is fixedly connected to the piston rod 6. The copper plug 53 can withstand the friction and lateral force of the piston 313 reciprocating motion, ensuring the stable operation of the piston 313.

[0034] Furthermore, the piston assembly 31 includes a first O-ring 311, with a shaped ring 312 at its front end. The piston 313 is connected to the inner side of the shaped ring 312, and a piston sealing ring 314 is provided at the front end of the shaped ring 312. An anti-collision pad 315 is provided at the front end of the piston sealing ring 314. A first piston rod 316 is fixedly connected to the center position of the front end of the piston 313. The function of the first O-ring 311 is to improve the sealing between the rear end cover 1 and the cylinder 3. The shaped ring 312 is used to connect the piston 313, ensuring that air enters through the air inlet 21. Air can push the piston 313 to slide inside the cylinder 3. The piston sealing ring 314 is set to ensure better sealing throughout the cylinder 3. The anti-collision pad 315 is to reduce the impact between the piston 313 and the first front end cover 4, and extend the service life of the piston 313.

[0035] Furthermore, the rear end of the first front cover 4 is provided with a second O-ring 41, and the front end of the first front cover 4 is provided with a third O-ring 42. The first front cover 4 has the same mounting hole 43 on one side at both the front and rear ends. The upper right side of the mounting hole 43 is provided with an air outlet 44. The second O-ring 41 is provided to ensure good sealing between the cylinder 3 and the first front cover 4. The third O-ring 42 is provided to ensure sealing between the first front cover 4 and the second front cover 5. The function of the mounting hole 43 is to extend the length of the entire mini cylinder, so that the diameter of the mini cylinder is reduced, making it easier to connect the first front cover 4 with the cylinder 3 and the second front cover 5.

[0036] Furthermore, a dustproof ring 55 is provided on the inner side of the rear end of the second front end cover 5, and a third O-ring 42 is provided at the rear end of the dustproof ring 55. The dustproof ring 55 is provided to reduce the impact of excessive dust inside the second piston rod 51 on the limiting block 52's limiting sliding, and to ensure that the piston rod 6 extends more stably.

[0037] Furthermore, the front end surface of the piston rod 6 is provided with a threaded connection groove 61. The function of the threaded connection groove 61 is to facilitate the connection stability between the piston rod 6 and the external component, and to ensure higher stability when the mini cylinder extends to drive the external component to extend and retract.

[0038] Furthermore, the front end of the rear end cover 1 is provided with a threaded connecting ring 11, the rear end of the threaded connecting ring 11 is fixedly connected to the connecting ring 2, and the front end of the threaded connecting ring 11 is threadedly connected to the cylinder 3. A No. 1 O-ring 311 is provided at the connection position between the threaded connecting ring 11 and the cylinder 3. The threaded connecting ring 11 ensures the connection stability between the rear end cover 1 and the cylinder 3, and the entire mini cylinder is connected stably with good sealing effect.

[0039] Working process: First, air is introduced through the air inlet 21. The air acts on the piston assembly 31, and the piston 313 in the piston assembly 31 is pushed. The piston 313 drives the first piston rod 316, the second piston rod 51 and the piston rod 6 to extend out of the entire mini cylinder. Then, the air outlet 44 exhausts the air. When the piston rod 6 retracts, air enters through the air outlet 44 and exits through the air inlet 21. The principle is simple.

[0040] It is worth noting that the entire mini cylinder is equipped with a rear end cover 1, a cylinder barrel 3, a first front end cover 4, and a second front end cover 5. The internal sealing connection is good, which makes the mini cylinder small in diameter, longer in length, and more widely applicable. In addition, a limiting block 52 is set on the second piston rod 51, which makes the extension stability of the entire piston rod 6 better.

[0041] In the description of this utility model, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and 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 the utility model.

[0042] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0043] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. An aluminum alloy round mini cylinder characterized by: Comprising The rear end cover (1) is connected with the connecting ring (2) at the front end, the connecting ring (2) is connected with the cylinder barrel (3) at the front end, the cylinder barrel (3) is connected with the first front end cover (4) at the front end, the first front end cover (4) is connected with the second front end cover (5) at the front end, and the second front end cover (5) is provided with the piston rod (6) at the front end center position; The connecting ring (2) is provided with the air inlet (21) on the surface; The cylinder barrel (3) is provided with the piston assembly (31) inside the rear end; The second front end cover (5) is provided with the second piston rod (51) inside, the second piston rod (51) is provided with the limiting block (52) on the surface at the rear end, and the second piston rod (51) is provided with the copper plug (53) at the front end, the copper plug (53) is provided with two same nuts (54) at the front end, and the nuts (54) are fixedly connected with the piston rod (6) at the front end.

2. The aluminum alloy round mini cylinder of claim 1 wherein, The piston assembly (31) comprises the first O-shaped ring (311), the first O-shaped ring (311) is provided with the special-shaped ring (312) at the front end, the special-shaped ring (312) is connected with the piston (313) inside, the special-shaped ring (312) is provided with the piston sealing ring (314) at the front end, the piston sealing ring (314) is provided with the anti-collision pad (315) at the front end, and the piston (313) is fixedly connected with the first piston rod (316) at the front end center position.

3. The aluminum alloy round mini cylinder of claim 1 wherein, The first front end cover (4) is provided with the second O-shaped ring (41) at the rear end, and the first front end cover (4) is provided with the third O-shaped ring (42) at the front end, the first front end cover (4) is provided with the same mounting hole (43) at the front end and the rear end on one side, and the air outlet (44) is arranged on the right side of the upper end of the mounting hole (43).

4. The aluminum alloy round mini cylinder of claim 1 wherein, The second front end cover (5) is provided with the dustproof ring (55) inside the rear end, and the dustproof ring (55) is provided with the third O-shaped ring (42) at the rear end.

5. The aluminum alloy round mini cylinder of claim 1 wherein, The piston rod (6) is provided with the threaded connection groove (61) on the surface at the front end.

6. The aluminum alloy round mini cylinder of claim 1 wherein, The rear end cover (1) is provided with the threaded connection ring (11) at the front end, the threaded connection ring (11) is fixedly connected with the connecting ring (2) at the rear end, and the threaded connection ring (11) is threadedly connected with the cylinder barrel (3) at the front end, and the threaded connection ring (11) is provided with the first O-shaped ring (311) at the connecting position with the cylinder barrel (3).

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