High-wear-resistance air cylinder body

Abstract

The utility model belongs to the technical field of air cylinders, and particularly relates to a high-abrasion-resistance air cylinder body which comprises a cylinder body, a cavity is formed in the cylinder body, a sliding sleeve is arranged on a matching hole, and a connector is arranged on the cylinder body. And the end cover is provided with a connecting end and a through hole, and the connecting end is arranged on the port of the cavity and is fixed with the cylinder body.

Description

Technical Field

[0001] This utility model belongs to the field of cylinder technology, and in particular relates to a high wear-resistant cylinder body. Background Technology

[0002] A cylinder is a cylindrical metal component that guides a piston in linear reciprocating motion within the cylinder. In an engine cylinder, air expands, converting thermal energy into mechanical energy; in a compressor cylinder, gas is compressed by the piston, increasing its pressure.

[0003] Existing cylinders are prone to wear due to the long-term reciprocating motion of the piston rod during use, which affects the cylinder's performance. Therefore, we have specially designed a high wear-resistant cylinder body. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a highly wear-resistant cylinder body, thereby extending its service life.

[0005] In view of this, the present invention provides a high wear-resistant cylinder body, comprising:

[0006] The cylinder block has a cavity, a sliding sleeve on the mating hole, and a connector on the cylinder block.

[0007] The end cap has a connecting end and a through hole. The connecting end is located on the cavity port and is fixed to the cylinder body.

[0008] In the above technical solution, the sliding sleeve further includes:

[0009] A steel sleeve, with a mating cavity formed on the inner side of the steel sleeve;

[0010] The rubber sleeve is set on the outside of the steel sleeve, and the rubber sleeve forms constricted piston rod mating holes at both ends of the steel sleeve;

[0011] The rubber sleeve has a rubber tube on its end face with the piston rod mating hole, and the rubber tube is connected to the connector.

[0012] Furthermore, the above technical solution also includes:

[0013] The assembly groove is located on the outer wall surface of the rubber sleeve.

[0014] In the above technical solution, the cavity further includes:

[0015] Assembly section;

[0016] The connecting section has threads on its outer side, and a stepped structure is formed between the assembly section and the connecting section.

[0017] Among them, after the end cap is threaded into the connecting section, a buffer cavity is formed between the end cap and the step, and the inner port of the joint extends into the buffer cavity;

[0018] Among them, the rubber sleeve corresponds to the edge of the stepped structure.

[0019] Furthermore, the above technical solution also includes:

[0020] A fixing ring is provided inside the buffer cavity, with its two ends abutting against the connecting end and the edge, respectively.

[0021] The fixing ring has a notch.

[0022] Furthermore, the above technical solution also includes:

[0023] A limiting protrusion is provided on the outer wall of the rubber sleeve and avoids the assembly groove;

[0024] Limit slots are provided on the assembly section.

[0025] Furthermore, the above technical solution also includes:

[0026] A sealing sleeve is installed on the through hole and connected to the piston rod.

[0027] In the above technical solution, the cylinder body is further made of plastic material by injection molding.

[0028] The beneficial effects of this utility model are: the connection between the sliding sleeve and the cylinder body is simple, and the sliding sleeve can prevent the piston rod from directly contacting the cylinder body, thereby improving the wear resistance of the cylinder body and extending its service life. Attached Figure Description

[0029] Figure 1 This is a perspective view of the present invention;

[0030] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the assembly of the sliding sleeve and the cylinder body of this utility model;

[0032] The markings in the diagram represent: 1. Cylinder block; 111. Assembly section; 112. Connecting section; 1121. Threaded section; 1122. Buffer chamber; 12. Connector; 21. Steel sleeve; 22. Rubber sleeve; 221. Piston rod mating hole; 222. Rubber hose; 223. Edge; 224. Assembly groove; 3. End cap; 31. Connecting end; 32. Through hole; 4. Retaining ring; 5. Limiting protrusion; 6. Limiting groove; 7. Sealing sleeve. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0034] Example 1:

[0035] This embodiment provides a high wear-resistant cylinder block, including:

[0036] Cylinder 1, a cavity is provided on cylinder 1, a sliding sleeve is provided on the mating hole, and a connector 12 is provided on cylinder 1;

[0037] End cap 3, with a connecting end 31 and a through hole 32. The connecting end 31 is located on the cavity port and is fixed to the cylinder body 1.

[0038] As can be seen from this embodiment, a high wear-resistant cylinder body includes a cylinder body 1 and an end cap 3;

[0039] The cylinder body 1 has a cavity formed inside, and a connector 12 is formed on the wall of the cylinder body 1. The connector 12 is used to connect to an external air source. The sliding sleeve is installed in the cavity and cooperates with the piston rod during use.

[0040] End caps 3 are connected to both ends of cylinder body 1, and end caps 3 fix the sliding sleeve during the connection process with cylinder body 1.

[0041] The connection between the sliding sleeve and the cylinder 1 is simple, and the sliding sleeve can prevent the piston rod from directly contacting the cylinder 1, thereby improving the wear resistance of the cylinder 1 and extending its service life.

[0042] Example 2:

[0043] This embodiment provides a high wear-resistant cylinder block, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0044] The sliding sleeve includes:

[0045] Steel sleeve 21, with a mating cavity formed on the inner side of steel sleeve 21;

[0046] Rubber sleeve 22 is provided on the outside of steel sleeve 21. Rubber sleeve 22 forms constricted piston rod mating holes 221 at both ends of steel sleeve 21.

[0047] Among them, the end face of the rubber sleeve 22 with the piston rod mating hole 221 is provided with a rubber tube 222, which is connected to the connector 12.

[0048] As can be seen from this embodiment, the sliding sleeve includes a steel sleeve 21 and a rubber sleeve 22;

[0049] The steel sleeve 21 is made of wear-resistant metal material. The steel sleeve 21 has a cylindrical steel ring structure. The rubber sleeve 22 is fitted on the outside of the steel sleeve 21 and covers both ends of the steel sleeve 21. The rubber sleeve 22 has piston rod mating holes 221 formed at both ends of the steel sleeve 21. The piston rod is assembled into the steel sleeve 21 located inside the rubber sleeve 22 through the piston rod mating holes 221. Furthermore, rubber tubes 222 are formed on the outer end faces of the piston rod mating holes 221 at both ends of the rubber sleeve 22. The rubber tubes 222 extend to the outside through the connector 12 and are connected to an external air source.

[0050] The rubber sleeve 22 is installed in the cavity of the steel ring, which serves as a connection and assembly function. The steel sleeve 21 is made of wear-resistant metal and has a smooth inner wall. The steel sleeve 21 replaces the cavity and cooperates with the piston rod, thereby reducing the contact between the piston rod and the cylinder 1 and extending the service life of the cylinder 1.

[0051] Example 3:

[0052] This embodiment provides a high wear-resistant cylinder block, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0053] Assembly groove 224 is provided on the outer wall surface of rubber sleeve 22.

[0054] As can be seen from this embodiment, by providing an assembly groove 224 on the outside of the rubber sleeve 22, it is convenient to assemble the steel sleeve 21 and the rubber sleeve 22 during use.

[0055] Example 4:

[0056] This embodiment provides a high wear-resistant cylinder block, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0057] The cavity includes:

[0058] Assembly section 111;

[0059] The connecting section 112 has threads on its outer side, and a stepped structure is formed between the assembly section 111 and the connecting section 112.

[0060] Wherein, after the end cap 3 is threaded into the connecting section 112, a buffer cavity 1122 is formed between the end cap 3 and the step, and the inner port of the connector 12 extends into the buffer cavity 1122.

[0061] Among them, the rubber sleeve 22 corresponds to the edge 223 of the stepped structure forming.

[0062] As can be seen from this embodiment, the cavity includes an assembly section 111 and a connecting section 112. The connecting section 112 is formed at both ends of the assembly section 111, and the diameter of the assembly section 111 is smaller than the diameter of the connecting section 112, thereby forming a stepped structure between the assembly section 111 and the connecting section 112.

[0063] Furthermore, the two ends of the rubber sleeve 22 are formed with edges 223. After the rubber sleeve 22 is connected to the assembly section 111, the edges 223 are stuck to the outside of the step structure, thereby limiting and fixing the sliding sleeve in the cavity.

[0064] Furthermore, the wall surface of the assembly section 111 is smooth, which allows it to fit better with the rubber sleeve 22 during the assembly process, while preventing the rubber sleeve 22 from being scratched or damaged during assembly and use.

[0065] Furthermore, a threaded section 1121 is formed on the wall of the connecting section 112 near the outer port. The wall of the connecting section 112 between the threaded section 1121 and the stepped structure is smooth. After the end cap 3 is connected to the threaded section 1121, it is assembled onto the connecting section 112. A buffer cavity 1122 is formed between the end cap 3 and the stepped structure. The inner port of the connector 12 extends on the wall of the buffer cavity 1122. Thus, the rubber tube 222 on the rubber sleeve 22 can be connected to an external air source through the connector 12 via the buffer cavity 1122 for convenient use.

[0066] Example 5:

[0067] This embodiment provides a high wear-resistant cylinder block, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0068] The fixing ring 4 is disposed in the buffer cavity 1122, and its two ends abut against the connecting end 31 and the edge 223 respectively.

[0069] The fixing ring 4 has a notch.

[0070] As can be seen from this embodiment, the fixing ring 4 has a notch and is disposed in the buffer cavity 1122;

[0071] After the sliding sleeve is installed on the assembly section 111, the retaining ring 4 is placed on the connecting section 112 and abuts against the outside of the edge 223. At the same time, the rubber tube 222 is connected to the port of the connector 12 on the wall of the buffer cavity 1122 through the notch on the steel sleeve 21. Finally, the connecting end 31 is engaged with the threaded section 1121. During the engagement process, the retaining ring 4 tightly abuts the edge 223 against the stepped structure, thereby strengthening the connection strength of the sliding sleeve in the cylinder body 1 and preventing the sliding sleeve from falling off.

[0072] Example 6:

[0073] This embodiment provides a high wear-resistant cylinder block, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0074] The limiting protrusion 5 is provided on the outer wall of the rubber sleeve 22 and avoids the assembly groove 224;

[0075] Among them, the assembly section 111 is provided with a limit groove 6.

[0076] As can be seen from this embodiment, the limiting protrusion 5 is formed in the middle section of the rubber sleeve 22, and the limiting groove 6 extends through to both ends of the stepped structure. When in use, the rubber sleeve 22 is connected to the assembly section 111, and the limiting protrusion 5 and the limiting groove 6 cooperate during the rotation of the rubber sleeve 22.

[0077] By setting a limiting protrusion 5 on the rubber sleeve 22, the rubber sleeve 22 is limited, which facilitates the connection between the rubber tube 222 and the connector 12 during the assembly process. At the same time, it can prevent the rubber sleeve 22 from deflecting during use, which is beneficial to its use.

[0078] Example 7:

[0079] This embodiment provides a high wear-resistant cylinder block, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0080] The sealing sleeve 7 is disposed on the through hole 32 and connected to the piston rod.

[0081] As can be seen from this embodiment, the mating surface between the piston rod and the through hole 32 is sealed by setting a sealing sleeve 7 on the through hole 32.

[0082] Example 8:

[0083] This embodiment provides a high wear-resistant cylinder block, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0084] Cylinder 1 is injection molded from plastic material.

[0085] As can be seen from this embodiment, the cost of the plastic cylinder 1 is lower. Since the cylinder 1 does not directly contact the piston rod, the wear caused by the piston rod during the reciprocating process can be directly avoided, thereby extending the service life. Furthermore, based on the extended service life, the cost of directly replacing the cylinder 1 during subsequent use is reduced, and injection molding is convenient for manufacturing.

[0086] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A high wear-resistant cylinder block, characterized in that, include: A cylinder body (1) is provided with a cavity, a sliding sleeve is provided on the mating hole, and a connector (12) is provided on the cylinder body (1). End cap (3), the end cap (3) is provided with a connecting end (31) and a through hole (32), the connecting end (31) is provided on the cavity port and fixed to the cylinder body (1).

2. The high wear-resistant cylinder block according to claim 1, characterized in that the sliding sleeve... include: A steel sleeve (21) has a mating cavity formed on its inner side; A rubber sleeve (22) is provided on the outside of a steel sleeve (21). The rubber sleeve (22) forms constricted piston rod mating holes (221) at both ends of the steel sleeve (21). The rubber sleeve (22) has a rubber tube (222) on the end face with the piston rod mating hole (221), and the rubber tube (222) is connected to the connector (12).

3. The high wear-resistant cylinder body according to claim 2, characterized in that, it also... include: Assembly groove (224) is provided on the outer wall surface of the rubber sleeve (22).

4. A high wear-resistant cylinder body according to claim 3, characterized in that the cavity... include: Assembly section (111); The connecting section (112) has a thread on its outer side, and a stepped structure is formed between the assembly section (111) and the connecting section (112); Wherein, after the end cap (3) is threaded into the connecting section (112), a buffer cavity (1122) is formed between the end cap (3) and the step, and the inner port of the connector (12) extends into the buffer cavity (1122). The rubber sleeve (22) corresponds to the edge (223) of the stepped structure forming.

5. A high wear-resistant cylinder body according to claim 4, characterized in that, it further... include: A fixing ring (4) is provided in the buffer cavity (1122), and the two ends of the fixing ring (4) abut against the connecting end (31) and the edge (223) respectively; The fixing ring (4) has a notch.

6. A high wear-resistant cylinder body according to claim 5, characterized in that, it further... include: The limiting protrusion (5) is provided on the outer wall of the rubber sleeve (22) and avoids the assembly groove (224); The assembly section (111) is provided with a limiting groove (6).

7. A high wear-resistant cylinder block according to claim 6, characterized in that, it further... include: A sealing sleeve (7) is provided on the through hole (32) and connected to the piston rod.

8. A high wear-resistant cylinder block according to claim 7, characterized in that, The cylinder body (1) is injection molded from plastic material.

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