Composite protective sleeve for high-pressure oil cylinder

Abstract

The utility model relates to the technical field of oil cylinder protective sleeve, provide composite protective sleeve for high pressure resistant oil cylinder, including the sleeve body and slide fastener, the sleeve body both ends are used for with oil cylinder both ends assembly connection, the sleeve body side edge is detachably arranged through the slide fastener, the sleeve body is assembled and is connected with two side sleeves, two side sleeves side edges are assembled and are connected through the slide fastener respectively, the sleeve body is the folding pipe body structure, the steel ring is arranged in the sleeve body and is spaced apart up and down, the steel ring of adjacent two side sleeves is detachably arranged, the inside of sleeve body is equipped with the reinforcing strip, the both ends of sleeve body are equipped with the end sleeve, the end sleeve is used for with oil cylinder assembly connection through the fastening ring, the utility model discloses left and right split folding pipe structure and built -in steel ring spacing, can provide effective buffer when the oil cylinder bursts suddenly and keep with the steady firm of oil cylinder, will not fall off because of high pressure impact.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder protective sleeve technology, and in particular to a composite protective sleeve for high-pressure hydraulic cylinders. Background Technology

[0002] In hydraulic machinery and lifting equipment, if a high-pressure oil cylinder bursts, it will not only cause oil to splash and seriously pollute the working environment, but also pose a major threat to personnel safety. Therefore, the industry usually installs protective devices on the outside of the oil cylinder to initially intercept and guide the high-pressure oil that leaks at the moment of bursting.

[0003] Currently, most common hydraulic cylinder protective sleeves are made of integrally molded heat-shrinkable material or one-piece hose, which are fixed to both ends of the hydraulic cylinder by rubber rings or steel cables. After use, they need to be slid out or cut to replace and maintain them, and their material strength and tear resistance are limited. Utility Model Content

[0004] The purpose of this invention is to solve the problem of weak compressive strength in the existing technology.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a composite protective sleeve for high-pressure hydraulic cylinders, comprising a sleeve body and a zipper. The two ends of the sleeve body are used for assembly and connection with the two ends of the hydraulic cylinder. The sides of the sleeve body are detachably set by the zipper. The sleeve body is assembled and connected by two side sleeves, and the two side sleeves are respectively assembled and connected by zippers. The sleeve body has a folded tube structure. Steel rings are provided at intervals on the upper and lower parts of the sleeve body. The steel rings on two adjacent side sleeves are detachably fitted. A reinforcing strip is provided on the inner side of the sleeve body. End sleeves are provided at both ends of the sleeve body. The end sleeves are used for assembly and connection with the hydraulic cylinder by fastening rings.

[0006] In a preferred embodiment, the steel ring is disposed inside the sleeve body, and the steel ring is disposed at the outer ring position of the sleeve body of the folded tube structure.

[0007] In a preferred embodiment, one end of the steel ring is provided with a limiting strip, and the other end of the steel ring is provided with a limiting groove that slides and adapts to the limiting strip. The two steel rings are combined to form a circular structure. The steel rings have a certain degree of toughness. When installing the two side sleeves, the limiting strip on one steel ring can be bent to slide into the limiting groove of the other steel ring. Similarly, the other limiting strip is also installed into the corresponding limiting groove. Since the limiting strip is relatively long, when the hydraulic cylinder breaks, the limiting strip will slide in the limiting groove and tend to detach, but it will not completely detach, thus achieving a buffering effect.

[0008] In a preferred embodiment, the inner side of the sleeve is provided with a longitudinal reinforcing strip, and there are multiple sets of the reinforcing strip. The reinforcing strip is made of aramid fiber and has the characteristics of high temperature resistance, tear resistance, high strength and insulation.

[0009] In a preferred embodiment, an anti-slip ring is provided on the inner side of the end sleeve, and an end ring is provided on the end face of the end sleeve. The anti-slip ring can increase the friction between the end sleeve and the hydraulic cylinder, ensuring the firmness after installation. Even if the hydraulic cylinder rubs or cracks, it is difficult to move over a large range. The end ring increases the volume of the end face of the end sleeve and is used to limit the fastening ring fitted on the outside of the end sleeve.

[0010] In a preferred embodiment, the fastening ring is composed of two half-rings, and the two half-rings are fixed together by bolts.

[0011] In a preferred embodiment, the side sleeve comprises, from the inside out, a braided layer, a buffer layer, a carbon fiber layer, and a wear-resistant layer. The buffer layer has a 3D-printed honeycomb structure, the braided layer is made of aramid material and has tear resistance, the carbon fiber layer is resistant to radial expansion cracking, the buffer layer is made of polyetherimide material and has high temperature resistance and good flame retardancy, and the wear-resistant layer is made of thermoplastic polyurethane elastomer.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] When installing the sleeve body and the hydraulic cylinder, the two side sleeves are respectively put on from both sides of the hydraulic cylinder, and then the limiting strips are inserted into the corresponding limiting grooves in sequence. After the two side sleeves are combined, the zippers on both sides are pulled up. The zippers are industrial explosion-proof zippers with good impact resistance. Even if the hydraulic cylinder breaks, they are difficult to be damaged and cause the sleeve body to separate. Finally, the sleeve body is moved to a suitable position on the hydraulic cylinder and the end sleeves are fixed with fastening rings. Because the limiting strip is relatively long, when the hydraulic cylinder breaks, the limiting strip will slide in the limiting groove and tend to separate, but it will not completely separate, thus achieving a buffering effect. Attached Figure Description

[0014] Figure 1 A perspective view of the composite protective sleeve for high-pressure hydraulic cylinders provided by this utility model;

[0015] Figure 2 A schematic diagram of the side sleeve structure of the composite protective sleeve for high-pressure hydraulic cylinders provided by this utility model;

[0016] Figure 3 A schematic diagram of the limiting strip and limiting groove structure of the composite protective sleeve for high-pressure hydraulic cylinders provided by this utility model;

[0017] Figure 4 A schematic diagram of the material distribution structure of the composite protective sleeve for high-pressure hydraulic cylinders provided by this utility model.

[0018] Legend:

[0019] 1. Sleeve body; 2. Zipper; 3. Side sleeve; 4. Steel ring; 5. Reinforcing strip; 6. End sleeve; 7. Fastening ring; 8. Limiting strip; 9. Limiting groove; 10. Anti-slip ring; 11. End ring; 12. Bolt; 13. Braided layer; 14. Buffer layer; 15. Carbon fiber layer; 16. Wear-resistant layer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a composite protective sleeve for high-pressure hydraulic cylinders, including a sleeve body 1 and a zipper 2. The two ends of the sleeve body 1 are used for assembly and connection with the two ends of the hydraulic cylinder. The sides of the sleeve body 1 are detachably set through the zipper 2. The sleeve body 1 is assembled and connected by two side sleeves 3. The sides of the two side sleeves 3 are respectively assembled and connected through the zipper 2. The sleeve body 1 has a folded tube structure. Steel rings 4 are provided at intervals inside the sleeve body 1. The steel rings 4 on two adjacent side sleeves 3 are detachably fitted. A reinforcing strip 5 is provided inside the sleeve body 1. End sleeves 6 are provided at both ends of the sleeve body 1. The end sleeves 6 are used for assembly and connection with the hydraulic cylinder through fastening rings 7.

[0022] like Figure 1-4 As shown, the steel ring 4 is set inside the sleeve 1, and the steel ring 4 is set at the outer ring position of the sleeve 1 of the folded tube structure.

[0023] like Figure 1-4 As shown, one end of the steel ring 4 is provided with a limiting strip 8, and the other end of the steel ring 4 is provided with a limiting groove 9 that slides and adapts to the limiting strip 8. The two steel rings 4 are combined to form a circular structure. The steel ring 4 has a certain toughness. When installing the two side sleeves 3, by bending the limiting strip 8 on one steel ring 4, it can be slid into the limiting groove 9 of the other steel ring 4. Similarly, the other limiting strip 8 is also installed into the corresponding limiting groove 9. Since the limiting strip 8 is relatively long, when the oil cylinder breaks, the limiting strip 8 will slide in the limiting groove 9 and tend to detach, but it will not completely detach, thus achieving a buffering effect.

[0024] like Figure 1-4 As shown, the inner side of the sleeve 1 is provided with a longitudinal reinforcing strip 5. There are multiple sets of reinforcing strips 5. The reinforcing strip 5 is made of aramid fiber, which has the characteristics of high temperature resistance, tear resistance, high strength and insulation.

[0025] like Figure 1-4As shown, an anti-slip ring 10 is provided on the inner side of the end sleeve 6, and an end ring 11 is provided on the end face of the end sleeve 6. The anti-slip ring 10 can increase the friction between the end sleeve 6 and the oil cylinder, ensuring the firmness after installation. Even if the oil cylinder rubs or cracks, it is difficult to move over a large range. The end ring 11 increases the volume of the end face of the end sleeve 6 and is used to limit the fastening ring 7 sleeved on the outside of the end sleeve 6.

[0026] like Figure 1-4 As shown, the fastening ring 7 consists of two half-rings, and the two half-rings are fixed together by bolts 12.

[0027] like Figure 1-4 As shown, the side sleeve 3 includes, from the inside out, a braided layer 13, a buffer layer 14, a carbon fiber layer 15, and a wear-resistant layer 16. The buffer layer 14 has a 3D-printed honeycomb structure. The braided layer 13 is made of aramid and has tear resistance. The carbon fiber layer 15 is resistant to radial expansion cracking. The buffer layer 14 is made of polyetherimide and has high temperature resistance and good flame retardancy. The wear-resistant layer 16 is made of thermoplastic polyurethane elastomer.

[0028] Working principle: When installing the sleeve 1 and the oil cylinder, the two side sleeves 3 are respectively put on from both sides of the oil cylinder, and then the limiting strips 8 are inserted into the corresponding limiting grooves 9 in sequence. After the two side sleeves 3 are combined, the zippers 2 on both sides are pulled up. The zippers 2 are industrial explosion-proof zippers 2, which have good impact resistance and are difficult to damage even if the oil cylinder breaks, causing the sleeve 1 to separate. Finally, the sleeve 1 is moved to the appropriate position of the oil cylinder, and the end sleeve 6 is fixed with the fastening ring 7. Since the limiting strip 8 is relatively long, when the oil cylinder breaks, the limiting strip 8 will slide in the limiting groove 9 and tend to separate, but will not completely separate, thus achieving a buffering effect.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A composite protective sleeve for high-pressure oil cylinder, comprising a sleeve body (1) and a zipper (2), both ends of the sleeve body (1) are used for assembly connection with both ends of the oil cylinder, and the side edge of the sleeve body (1) is detachably provided through the zipper (2), characterized in that, The sleeve (1) is assembled and connected by two side sleeves (3). The two side sleeves (3) are respectively assembled and connected by zippers (2). The sleeve (1) is a folded tube structure. The sleeve (1) is provided with steel rings (4) spaced apart vertically. The steel rings (4) on the two adjacent side sleeves (3) can be detachably fitted. The sleeve (1) is provided with reinforcing strips (5) on the inner side. The sleeve (1) is provided with end sleeves (6) at both ends. The end sleeves (6) are used to be assembled and connected with the oil cylinder by fastening rings (7).

2. The composite protective sleeve for high-pressure hydraulic cylinders according to claim 1, characterized in that: The steel ring (4) is located inside the sleeve (1) and is located at the outer ring position of the sleeve (1) of the folded tube structure.

3. The composite protective sleeve for high-pressure hydraulic cylinders according to claim 2, characterized in that: One end of the steel ring (4) is provided with a limiting strip (8), and the other end of the steel ring (4) is provided with a limiting groove (9) that is slidably adapted to the limiting strip (8). The two steel rings (4) are combined into a circular structure. The steel ring (4) has a certain toughness. When installing the two side sleeves (3), the limiting strip (8) on one steel ring (4) can be bent to slide into the limiting groove (9) of the other steel ring (4). Similarly, the other limiting strip (8) is also installed into the corresponding limiting groove (9). Since the limiting strip (8) is relatively long, when the oil cylinder explodes, the limiting strip (8) will slide in the limiting groove (9) and tend to detach, but will not completely detach, thus achieving a buffering effect.

4. The composite protective sleeve for high-pressure hydraulic cylinders according to claim 1, characterized in that: The inner side of the sleeve (1) is provided with a longitudinal reinforcing strip (5). The reinforcing strip (5) is provided in multiple sets. The reinforcing strip (5) is made of aramid fiber and has the characteristics of high temperature resistance, tear resistance, high strength and insulation.

5. The composite protective sleeve for high-pressure hydraulic cylinders according to claim 1, characterized in that: The end sleeve (6) is provided with an anti-slip ring (10) on the inner side and an end ring (11) on the end face of the end sleeve (6). The anti-slip ring (10) can increase the friction between the end sleeve (6) and the oil cylinder, ensuring the firmness after installation. Even if the oil cylinder rubs or cracks, it is difficult to move over a large range. The end ring (11) increases the volume of the end face of the end sleeve (6) and is used to limit the fastening ring (7) sleeved on the outside of the end sleeve (6).

6. The composite protective sleeve for high-pressure hydraulic cylinders according to claim 1, characterized in that: The fastening ring (7) is composed of two half-rings, and the two half-rings are fixed together by bolts (12).

7. The composite protective sleeve for high-pressure hydraulic cylinders according to claim 1, characterized in that: The side sleeve (3) includes, from the inside out, a braided layer (13), a buffer layer (14), a carbon fiber layer (15), and a wear-resistant layer (16). The buffer layer (14) is a 3D printed honeycomb structure. The braided layer (13) is made of aramid and has tear resistance. The carbon fiber layer (15) is resistant to radial expansion cracking. The buffer layer (14) is made of polyetherimide and has high temperature resistance and good flame retardancy. The wear-resistant layer (16) is made of thermoplastic polyurethane elastomer.

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