Hydraulic cylinder adapter
By designing a hydraulic cylinder adapter and utilizing the interconnected oil passage structure of the sleeve and inner core, the problem of oil pipe breakage caused by cylinder oscillation was solved, achieving a stable connection of the oil pipe and preventing equipment damage.
Patent Information
- Application Number
- CN202520374436.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Traditional hydraulic cylinder joints are prone to being silted up by mud or frozen when the cylinder swings, which can cause the oil pipes to break or tear, resulting in equipment damage.
A hydraulic cylinder adapter was designed, including a sleeve and an inner core. The inner core has an oil passage groove and a connecting oil passage. The oil passage is kept connected by a sealing structure. The sleeve can rotate around the inner core to prevent the oil pipe from being pulled apart.
Even if the hydraulic cylinder swings, the connector can rotate in a circle while the oil pipe remains stationary, thus preventing equipment damage.
Smart Images

Figure CN223924180U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hydraulic cylinder technology, and in particular relates to a hydraulic cylinder adapter. Background Technology
[0002] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:
[0003] In traditional technology, the joints of hydraulic cylinders are fixed structures. When the oil pipes connecting the cylinders are silted up with mud or frozen, if the gate is raised or lowered, the oil pipes will be pulled off or torn as the cylinders swing, causing damage to the equipment.
[0004] CN221628549U - A hydraulic cylinder with angle rotation function discloses a hydraulic cylinder with angle rotation function, including a cylinder head, a cylinder bottom, a cylinder body, and a piston rod. The cylinder head and cylinder bottom are fixedly connected to the cylinder body, and the piston rod is slidably connected to the cylinder body. The piston rod has a connecting groove, and a positioning rod is fixedly connected to the cylinder bottom. The positioning rod is embedded in the connecting groove of the piston rod. A ball bearing is provided at the bottom of the piston rod, and the ball bearing is fixedly connected to the piston rod. The positioning rod passes through the ball bearing and is rotatably connected to the ball bearing. However, this method still cannot solve the aforementioned technical problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a hydraulic cylinder adapter that can rotate even when the cylinder swings, while the oil pipe remains stationary, thus preventing the oil pipe from being broken and the equipment from being damaged.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a hydraulic cylinder adapter, having:
[0007] A sleeve with an installation hole inside;
[0008] The inner core is rotatably installed in the mounting hole of the sleeve;
[0009] Oil passage grooves are provided on the inner core;
[0010] A connecting oil passage is provided inside the inner core, and the connecting oil passage is connected to the oil passage groove;
[0011] An oil outlet is provided inside the inner core. The oil outlet is connected to the connecting oil passage and passes through the inner core to connect with the outside.
[0012] A connector is connected to the sleeve, and the connector is connected to the oil passage groove.
[0013] The sleeve and the inner core are sealed by a sealing structure.
[0014] The sealing structure is a connecting sealing ring; the inner core is provided with a second mounting groove for installing the connecting sealing ring.
[0015] A connector is provided at the first end of the inner core.
[0016] The connector head is provided with a first mounting groove, and a mounting sealing ring is provided on the first mounting groove.
[0017] The inner wall of the mounting hole of the sleeve is provided with an inner hole groove that is adapted to the oil passage groove, and the joint is connected to the inner hole groove.
[0018] The inner core has an end face at its second end, and the end face is sealed to the end of the sleeve by an end face sealing ring.
[0019] The inner core is also equipped with connecting bolts.
[0020] One of the above technical solutions has the following advantages or beneficial effects: even if the oil cylinder swings, the joint can rotate in a circle, the oil pipe does not move, and the oil pipe will not be broken or the equipment damaged. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of the hydraulic cylinder adapter provided in the embodiments of this utility model;
[0022] Figure 2 for Figure 1 A schematic diagram of the structure of a hydraulic cylinder adapter;
[0023] Figure 3 for Figure 1 A schematic diagram of the structure of a hydraulic cylinder adapter;
[0024] Figure 4 for Figure 1 A schematic diagram of the structure of a hydraulic cylinder adapter;
[0025] Figure 5 for Figure 1 A schematic diagram of the structure of a hydraulic cylinder adapter;
[0026] Figure 6 for Figure 1 A schematic diagram of the structure of a hydraulic cylinder adapter;
[0027] Figure 7 for Figure 1 A schematic diagram of the structure of a hydraulic cylinder adapter;
[0028] Figure 8 for Figure 1 A schematic diagram of the structure of a hydraulic cylinder adapter;
[0029] The markings in the above figures are as follows: 1. Sleeve, 11. Mounting hole, 12. Inner hole groove, 2. Inner core, 21. Oil passage groove, 211. Connecting oil passage, 22. Oil outlet hole, 23. Connector, 231. First mounting groove, 24. Second mounting groove, 25. End face, 3. Joint, 4. Connecting bolt, 5. Mounting sealing ring, 6. Connecting sealing ring, 7. End face sealing ring. Detailed Implementation
[0030] 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.
[0031] See Figures 1-8 A hydraulic cylinder adapter includes: a sleeve 1 with an internal mounting hole 11; an inner core 2 rotatably mounted within the mounting hole 11 of the sleeve 1; an oil passage groove 21 on the inner core 2; a connecting oil passage 211 within the inner core 2, connected to the oil passage groove 21; and an oil outlet 22 within the inner core 2, connected to the connecting oil passage 211, passing through the inner core 2 and communicating with the outside. The sleeve 1 can rotate around the inner core 2. Even if the cylinder swings, the adapter 3 can rotate circumferentially without moving the oil pipe, preventing breakage and equipment damage. The adapter 3 on the sleeve 1 is connected to the oil outlet 22 via the oil passage groove 21, the connecting oil passage 211, and the oil passage groove 211, maintaining constant connection even during the rotation of the sleeve 1.
[0032] Connector 3 is connected to sleeve 1 and is connected to oil passage groove 21. Connector 3 on sleeve 1 is connected to oil outlet 22 through oil passage groove 21 and connecting oil passage 211, and can remain connected even when sleeve 1 is rotating.
[0033] The sleeve 1 and the inner core 2 are sealed by a sealing structure. The sealing structure is a connecting sealing ring 6; the inner core 2 is provided with a second mounting groove 24 for mounting the connecting sealing ring 6, which serves as a seal.
[0034] The first end of the inner core 2 is provided with a connector 23, which can be connected to a hydraulic cylinder.
[0035] The connector 23 is provided with a first mounting groove 231, and a sealing ring 5 is provided on the first mounting groove 231 to provide a sealing function.
[0036] The inner wall of the mounting hole 11 of the sleeve 1 is provided with an inner hole groove 12 that is adapted to the oil passage groove 21, and the connector 3 is connected to the inner hole groove 12. The connector 3 on the sleeve 1 is connected to the oil outlet hole 22 through the oil passage groove 21 and the connecting oil passage 211, and can remain connected even when the sleeve 1 is rotating.
[0037] The inner core 2 has an end face on its second end, and the end face is sealed to the end of the sleeve 1 by an end face sealing ring 7, which serves as a seal.
[0038] The inner core 2 is also provided with connecting bolts 4. The inner core 2 is fixedly connected to the hydraulic cylinder through the connecting bolts 4, and the sleeve 1 can rotate around the inner core 2.
[0039] With the above structure, even if the cylinder swings, the joint can rotate in a circle, while the oil pipe remains stationary, preventing it from breaking and damaging the equipment.
[0040] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", 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 element 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 this utility model.
[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0042] 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 hydraulic cylinder adapter, characterized in that, have: A sleeve with an installation hole inside; The inner core is rotatably installed in the mounting hole of the sleeve; Oil passage grooves are provided on the inner core; A connecting oil passage is provided inside the inner core, and the connecting oil passage is connected to the oil passage groove; An oil outlet is provided inside the inner core. The oil outlet is connected to the connecting oil passage and passes through the inner core to connect with the outside. A connector is connected to the sleeve, and the connector is connected to the oil passage groove.
2. The hydraulic cylinder adapter as described in claim 1, characterized in that, The sleeve and the inner core are sealed by a sealing structure.
3. The hydraulic cylinder adapter as described in claim 2, characterized in that, The sealing structure is a connecting sealing ring; the inner core is provided with a second mounting groove for installing the connecting sealing ring.
4. The hydraulic cylinder adapter as described in claim 3, characterized in that, A connector is provided at the first end of the inner core.
5. The hydraulic cylinder adapter as described in claim 4, characterized in that, The connector head is provided with a first mounting groove, and a mounting sealing ring is provided on the first mounting groove.
6. The hydraulic cylinder adapter as described in claim 5, characterized in that, The inner wall of the mounting hole of the sleeve is provided with an inner hole groove that is adapted to the oil passage groove, and the joint is connected to the inner hole groove.
7. The hydraulic cylinder adapter as described in claim 6, characterized in that, The inner core has an end face at its second end, and the end face is sealed to the end of the sleeve by an end face sealing ring.
8. The hydraulic cylinder adapter as described in claim 6, characterized in that, The inner core is also equipped with connecting bolts.