A new type of 60-degree cone oil port special plastic cover structure

CN224814085UActive Publication Date: 2026-09-29LONGGONG FUJIAN HYDRAULIC PRESSURE CO LTD
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Patent Information

Application Number
CN202522406345.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-13
Publication Date
2026-09-29
Estimated Expiration
2035-11-13

AI Technical Summary

Technical Problem

[0003]保护盖内部的密封橡胶垫材质较软,若更换为更硬的材料(如PU),则无法有效密封,且更易在气压和油口锐边的双重作用下损坏,活塞杆在重力作用下,会导致缸体内部气压变化,进而将橡胶垫向油口内部牵引,特别是60°锥形油口,相较于其他端面封油口,其端面更为尖锐,与保护盖的接触面积较小

Benefits of technology

[0012]通过采用上述技术方案,能够与油口的内部接触,通过摩擦力保证设备的稳定性。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel 60 degree cone oil port special plastic protective cover structure, including the protective cover subassembly, the protective cover subassembly includes the outer protective sleeve, the center cone, the outer sleeve along, the inner soft cover and the sealing ring, and the middle part of outer protective sleeve is installed with the center cone, the upper end of outer protective sleeve is installed with the outer sleeve along, and the inboard of outer protective sleeve is installed with the inner soft cover, the inboard lower extreme of inner soft cover is provided with the sealing ring, the inside installation of protective cover subassembly has the support frame subassembly, and the middle part of support frame subassembly is installed with the center connection subassembly, the upper end of support frame subassembly is installed with the friction force subassembly, and the inside installation of friction force subassembly has the one -way rotation subassembly, this equipment can avoid the equipment to be in damage, leads to the situation of part to enter to the oil port to take place, also can make equipment and oil port have certain resistance, like this can avoid the pressure change of oil port inside will, leads to equipment to be directly pushed out, influences the work of equipment.
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Description

Technical Field

[0001] This utility model relates to the field of cylinder oil port protection technology, specifically a novel 60° conical oil port special plastic protective cover structure. Background Technology

[0002] After the hydraulic cylinder is pressure tested, protective caps must be installed on each oil port to ensure the cleanliness of the cylinder. During the painting process, these protective caps not only serve a sealing function but also prevent the piston rod from slipping off. This prevents the piston rod from being exposed to the air under gravity and being easily contaminated by paint mist, thus affecting its performance and appearance.

[0003] The sealing rubber gasket inside the protective cover is made of a relatively soft material. If it were replaced with a harder material (such as PU), it would not provide an effective seal and would be more susceptible to damage under the combined effects of air pressure and the sharp edges of the oil port. The piston rod, under the influence of gravity, causes changes in the internal air pressure of the cylinder, which in turn pulls the rubber gasket towards the oil port. This is especially true for the 60° tapered oil port, whose end face is sharper than other end-face sealing ports, resulting in a smaller contact area with the protective cover. After painting, the protective gasket is easily torn and deformed under the combined effects of air pressure and the sharp edges of the oil port end face; some may even be sucked into the oil port and difficult to remove. Utility Model Content

[0004] The purpose of this utility model is to provide a novel 60° conical oil port special plastic protective cover structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a protective cover assembly, the protective cover assembly including an outer protective sleeve, a central cone, an outer outer edge, an inner soft sleeve and a sealing ring, wherein the central cone is installed in the middle of the outer protective sleeve, the outer outer edge is installed at the upper end of the outer protective sleeve, the inner soft sleeve is installed on the inner side of the outer protective sleeve, and a sealing ring is provided at the lower inner end of the inner soft sleeve.

[0006] Preferably, a support frame assembly is installed inside the protective cover assembly, and a central connecting assembly is installed in the middle of the support frame assembly. A friction force assembly is installed at the upper end of the support frame assembly, and a one-way rotation assembly is installed inside the friction force assembly. A spring is connected to the side of the central connecting assembly near the central axis of the protective cover assembly.

[0007] Preferably, the support frame assembly includes a central shaft, a first connecting block, and a rotating rod, with the first connecting block connected to the outer side of the central shaft and the rotating rod connected to both the front and rear ends of the central shaft;

[0008] By adopting the above technical solution, it is possible to facilitate contact between the friction wheel and the inner wall of the oil port, thereby increasing the stability of the equipment during operation.

[0009] Preferably, the central connecting assembly includes a central connecting shaft and a second connecting block, and the central connecting shaft is externally connected to the second connecting block;

[0010] By adopting the above technical solution, the rotation of the support frame assembly can be compensated, enabling the spring to function normally.

[0011] Preferably, the friction assembly includes a friction wheel, a rotating shaft, a bearing, and a connecting sleeve, wherein the front and rear ends of the friction wheel are connected to the rotating shaft, the rotating shaft is externally connected to the bearing, and the bearing is externally connected to the connecting sleeve.

[0012] By adopting the above technical solution, it is possible to make contact with the inside of the oil port and ensure the stability of the equipment through friction.

[0013] Preferably, the unidirectional rotation assembly includes a ratchet wheel and a locking block, and the upper end of the ratchet wheel is provided with a locking block;

[0014] By adopting the above technical solution, the friction wheel can achieve a unidirectional rotation effect.

[0015] Compared with the prior art, the advantages of this application are: the device can prevent damage to the equipment from causing some of the oil to enter the port, and it can also provide a certain resistance between the device and the port, thus preventing pressure changes inside the port from causing the device to be directly pushed out and affecting its operation.

[0016] The conical surface of the oil port fits snugly against the conical surface of the central cone. After the sealing ring is compressed, it provides a good seal. After the paint is hung up, there is no problem of difficulty in removing the rubber gasket. At the same time, the sealing ring is made of high-strength rubber, which can prevent the oil port cone from damaging the outer protective sleeve, thereby preventing the inner soft sleeve from being sucked into the oil port and unable to be removed.

[0017] This invention restricts the rotation of the friction wheel by using a one-way rotating component. This allows the friction wheel to rotate normally when the device is inserted, making it easier to install the device on the oil port. At the same time, the one-way rotation of the friction wheel creates greater resistance when the device is removed, thus preventing the device from being pushed out when the internal pressure of the oil port changes, which would affect the operation of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a novel 60° conical oil port plastic protective cap according to this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of a novel 60° conical oil port plastic protective cap according to this utility model;

[0020] Figure 3This is a partial cross-sectional schematic diagram of the friction component of a novel 60° conical oil port special plastic protective cover structure according to this utility model.

[0021] In the diagram: 1. Protective cover assembly; 101. Outer protective sleeve; 102. Central cone; 103. Outer sleeve edge; 104. Inner soft sleeve; 105. Sealing ring; 2. Support frame assembly; 201. Central shaft; 202. First connecting block; 203. Rotating rod; 3. Central connecting assembly; 301. Central connecting shaft; 302. Second connecting block; 4. Friction assembly; 401. Friction wheel; 402. Rotating shaft; 403. Bearing; 404. Connecting sleeve; 5. One-way rotation assembly; 501. Ratchet; 502. Locking block; 6. Spring. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-3 The present invention provides a technical solution: including a protective cover assembly 1, the protective cover assembly 1 including an outer protective sleeve 101, a central cone 102, an outer sleeve 103, an inner soft sleeve 104 and a sealing ring 105, wherein the central cone 102 is installed in the middle of the outer protective sleeve 101, the outer sleeve 103 is installed at the upper end of the outer protective sleeve 101, and the inner soft sleeve 104 is installed on the inner side of the outer protective sleeve 101, and the sealing ring 105 is provided at the lower inner end of the inner soft sleeve 104;

[0024] The oil port end is wrapped and protected by the combination of the outer protective sleeve 101, the central cone 102 and the outer sleeve 103. When the equipment is disassembled, the outer sleeve 103 can assist in bearing force, making it easier for the staff to apply force to the equipment and remove it from the oil port. The inner soft sleeve 104 can increase the sealing between the outer protective sleeve 101 and the oil port, and increase the sealing effect of the equipment. The sealing ring 105 can also increase the sealing effect between the outer protective sleeve 101 and the oil port, and at the same time, it can also prevent the tip of the oil port from damaging the outer protective sleeve 101.

[0025] The conical surface of the oil port fits into the conical surface of the central cone 102. After the sealing ring 105 is compressed, it provides a good seal. After the paint is hung up, there is no problem of difficulty in removing the rubber pad. At the same time, the sealing ring 105 is made of high-strength rubber, which can prevent the oil port cone from damaging the outer protective sleeve 101, thereby preventing the inner soft sleeve 104 from being sucked into the oil port and unable to be removed.

[0026] The protective cover assembly 1 has a support frame assembly 2 installed inside, and a central connecting assembly 3 is installed in the middle of the support frame assembly 2. The upper end of the support frame assembly 2 has a friction force assembly 4, and a one-way rotation assembly 5 is installed inside the friction force assembly 4. A spring 6 is connected to the side of the central connecting assembly 3 near the central axis of the protective cover assembly 1.

[0027] The spring 6 can push the two central connecting components 3 outward, so that after the equipment is installed, the friction wheel 401 can be in close contact with the inner wall of the oil port, ensuring the stability of the equipment connection.

[0028] The support frame assembly 2 includes a central shaft 201, a first connecting block 202 and a rotating rod 203, and the first connecting block 202 is connected to the outer side of the central shaft 201, and the rotating rod 203 is connected to the front and rear ends of the central shaft 201.

[0029] The rotating rod 203 forms a rotating structure with the central shaft 201 through the first connecting block 202. The rotating structure facilitates the movement of the friction wheel 401, so that the friction wheel 401 contacts the inner wall of the oil port for fixing.

[0030] The central connecting component 3 includes a central connecting shaft 301 and a second connecting block 302, and the central connecting shaft 301 is externally connected to the second connecting block 302;

[0031] The second connecting block 302 and the central connecting shaft 301 form a rotating structure. The rotating structure can compensate for the rotation when the rotating rod 203 changes angle, thereby preventing the changes caused by the rotation of the rotating rod 203 from bending the spring 6 and affecting the operation of the spring 6.

[0032] The friction assembly 4 includes a friction wheel 401, a rotating shaft 402, a bearing 403, and a connecting sleeve 404. The front and rear ends of the friction wheel 401 are connected to the rotating shaft 402, the outside of the rotating shaft 402 is connected to the bearing 403, and the outside of the bearing 403 is connected to the connecting sleeve 404.

[0033] The rotating shaft 402 forms a rotating structure with the connecting sleeve 404 through the bearing 403. The rotating structure enables the friction wheel 401 to rotate, which facilitates the rotation of the friction wheel 401 during equipment installation, reduces the resistance during equipment installation, and enables the equipment to be installed in the designated position.

[0034] The one-way rotation component 5 includes a ratchet 501 and a locking block 502, and the upper end of the ratchet 501 is provided with the locking block 502;

[0035] The locking block 502 has a limiting effect on the ratchet wheel 501, so that the ratchet wheel 501 can only rotate in one direction, thus making the friction wheel 401 also only rotate in one direction.

[0036] By restricting the rotation of the friction wheel 401 by the one-way rotation component 5, the friction wheel 401 can rotate normally when the equipment is inserted, which makes it easier for the equipment to be installed on the oil port. At the same time, the one-way rotation of the friction wheel 401 will create greater resistance to the removal of the equipment, which can prevent the equipment from being pushed out when the internal pressure of the oil port changes, thus affecting the operation of the equipment.

[0037] The implementation principle of this application is as follows: First, align the equipment with the oil port and insert the equipment. During insertion, the elasticity of the spring 6 pushes the central connecting component 3, causing the support frame component 2 to rotate outward. This causes the friction component 4 to contact the inner wall of the oil port. At this time, the one-way rotation component 5 does not restrict the rotation of the friction wheel 401. After the equipment is installed, it can be used. During use, if the pressure inside the oil port changes, such as a decrease in the internal air pressure, the central cone 102 will be pulled inward. The high strength of the sealing ring 105 can prevent the sharp end of the oil port from damaging the outer protective sleeve 101. If the internal air pressure increases, the equipment will be pushed outward. At this time, the one-way rotation component 5 will restrict the rotation of the friction wheel 401, thereby giving the friction wheel 401 a strong frictional force with the inside of the oil port, making the overall installation of the equipment more stable and preventing high air pressure from pushing the equipment off the oil port.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel 60° conical oil port special plastic protective cap structure, comprising a protective cap assembly (1), characterized in that: The protective cover assembly (1) includes an outer protective sleeve (101), a central cone (102), an outer sleeve edge (103), an inner soft sleeve (104), and a sealing ring (105). The central cone (102) is installed in the middle of the outer protective sleeve (101), the outer sleeve edge (103) is installed at the upper end of the outer protective sleeve (101), and the inner soft sleeve (104) is installed on the inner side of the outer protective sleeve (101). The sealing ring (105) is provided at the lower inner end of the inner soft sleeve (104).

2. The novel 60° conical oil port special plastic protective cap structure according to claim 1, characterized in that: The protective cover assembly (1) has a support frame assembly (2) installed inside, and a center connection assembly (3) is installed in the middle of the support frame assembly (2). A friction force assembly (4) is installed at the upper end of the support frame assembly (2), and a one-way rotation assembly (5) is installed inside the friction force assembly (4). A spring (6) is connected to the side of the center connection assembly (3) near the central axis of the protective cover assembly (1).

3. The novel 60° conical oil port special plastic protective cap structure according to claim 2, characterized in that: The support frame assembly (2) includes a central shaft (201), a first connecting block (202) and a rotating rod (203), and the first connecting block (202) is connected to the outside of the central shaft (201), and the rotating rod (203) is connected to the front and rear ends of the central shaft (201).

4. The novel 60° conical oil port special plastic protective cap structure according to claim 2, characterized in that: The central connecting component (3) includes a central connecting shaft (301) and a second connecting block (302), and the central connecting shaft (301) is externally connected to the second connecting block (302).

5. The novel 60° conical oil port special plastic protective cap structure according to claim 2, characterized in that: The friction assembly (4) includes a friction wheel (401), a rotating shaft (402), a bearing (403), and a connecting sleeve (404). The front and rear ends of the friction wheel (401) are connected to the rotating shaft (402). The bearing (403) is connected to the outside of the rotating shaft (402), and the connecting sleeve (404) is connected to the outside of the bearing (403).

6. The novel 60° conical oil port special plastic protective cap structure according to claim 2, characterized in that: The unidirectional rotation component (5) includes a ratchet (501) and a locking block (502), and the upper end of the ratchet (501) is provided with the locking block (502).