Cylinder cover with leak-proof function

Abstract

The utility model relates to the technical field of oil cylinder cover, especially an oil cylinder cover with anti-leakage function, which comprises a base, an oil cylinder sleeve is arranged above the base, a threaded joint is coaxially arranged on the top of the base, the threaded joint extends into the oil cylinder sleeve and is threadedly connected with the oil cylinder sleeve, a connecting sleeve is also coaxially connected to the top of the base, when the threaded joint extends into the oil cylinder sleeve, the connecting sleeve is sleeved on the outer surface of the oil cylinder sleeve, and the inner surface of the connecting sleeve is in clearance fit with the outer surface of the oil cylinder sleeve, a sealing ring is coaxially arranged on the top of the base, the sealing ring is located between the connecting sleeve and the threaded joint, and when the threaded joint extends into the oil cylinder sleeve. The base and the oil cylinder sleeve can be connected together through the cooperation of the threaded joint and the oil cylinder sleeve, the first flange and the second flange can be connected together through the cooperation of the locking sleeve and the screw rod, the base and the oil cylinder sleeve are fixed for the second time, the fixing is stable, and the installation effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of cylinder head technology, and in particular to a cylinder head with anti-leakage function. Background Technology

[0002] The cylinder head, also known as the end cap or cylinder head, is one of the key structural components of a hydraulic cylinder or pneumatic cylinder. Its core function is to seal the cylinder barrel and form a closed pressure chamber.

[0003] Existing cylinder heads are typically connected to the cylinder barrel via threads or retaining rings. However, during use, the high pressure of the hydraulic oil inside the cylinder barrel causes the cylinder head to loosen easily, resulting in unstable installation and poor performance. Furthermore, the cylinder head is usually connected to the cylinder barrel via a sealing ring, which, due to its elasticity, can deform under excessive hydraulic oil pressure, leading to leakage and poor performance. Therefore, we propose a cylinder head with leak-proof functionality. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a cylinder cover with anti-leakage function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cylinder cover with anti-leakage function is designed, including a base, a cylinder sleeve is provided above the base, and a threaded joint is coaxially installed on the top of the base, the threaded joint extends into the cylinder sleeve and is threadedly connected to the cylinder sleeve.

[0006] The top of the base is also coaxially connected to a connecting sleeve. When the threaded joint is inserted into the cylinder sleeve, the connecting sleeve is fitted on the outer surface of the cylinder sleeve, and the inner surface of the connecting sleeve is clearance-fitted with the outer surface of the cylinder sleeve.

[0007] A sealing ring is coaxially installed on the top of the base. The sealing ring is located between the connecting sleeve and the threaded joint. When the threaded joint is inserted into the cylinder sleeve, the top of the sealing ring abuts against the bottom of the cylinder sleeve, and the two are sealed together.

[0008] The top of the inner surface of the connecting sleeve is provided with a receiving groove, and an elastic connecting piece is provided inside the receiving groove. A sealing gasket is installed on one side of the elastic connecting piece, and the side of the sealing gasket is sealed to the inner wall of the receiving groove and the outer surface of the cylinder liner.

[0009] A first flange is installed on the bottom side of the cylinder liner, and a second flange is installed on the top edge of the connecting sleeve. When the threaded joint is inserted into the cylinder liner, the first flange is stacked on top of the second flange.

[0010] The second flange has several mounting holes on its top, and each mounting hole has a screw inside. The first flange has several slots on its top, and the top of each screw passes through the slot. Each screw is fitted with a locking nut on its top.

[0011] Preferably, the elastic connecting piece is arranged in a "V" shape, and the opening of the elastic connecting piece faces downward.

[0012] Preferably, annular connecting plates are installed at both ends of the bottom of the elastic connecting plate, and the inner wall of the receiving groove and the outer surface of the cylinder liner abut against the side of the annular connecting plate.

[0013] Preferably, the length of the screw is less than the distance between the bottom of the second flange and the top of the base.

[0014] Preferably, the bottom end of the screw is hexagonal, and the bottom of the second flange is provided with a hexagonal groove, which is connected to the corresponding mounting hole, and the bottom end of the screw is located in the corresponding hexagonal groove.

[0015] Preferably, each screw is fitted with an elastic washer at its top. The elastic washer is located between the first flange and the locking sleeve, and when the locking sleeve is tightened, the bottom end of the locking sleeve presses firmly against the top of the elastic washer.

[0016] Preferably, when the first flange is stacked on top of the second flange, the bottom of the first flange abuts against the bent portion of the elastic connecting piece.

[0017] The design scheme proposed in this utility model has the following beneficial effects in application:

[0018] 1. By using the threaded joint and the cylinder liner, the base and the cylinder liner can be connected together. Then, by using the locking nut and the screw, the first flange and the second flange can be connected together, thus fixing the base and the cylinder liner a second time, making the fixation more secure and improving the installation effect.

[0019] 2. The sealing ring provides an initial seal between the cylinder liner and the base, while the sealing gasket on the elastic connecting piece provides a secondary seal between the base and the cylinder liner, preventing oil leakage and improving performance. Attached Figure Description

[0020] Figure 1 This is a structural dispersion diagram of the present invention;

[0021] Figure 2 This is a partial structural side view of the present invention;

[0022] Figure 3 This is a partial side sectional view of the structure of this utility model;

[0023] Figure 4 This is a cross-sectional view of the elastic connecting piece structure of this utility model.

[0024] In the diagram: 1. Base; 2. Receiving groove; 3. Screw; 4. Elastic gasket; 5. Locking nut; 6. Strip groove; 7. Cylinder sleeve; 8. First flange; 9. Threaded joint; 10. Sealing gasket; 11. Mounting hole; 12. Connecting sleeve; 13. Second flange; 14. Hexagonal groove; 15. Sealing ring; 16. Annular connecting piece; 17. Elastic connecting piece. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-4 A cylinder cover with anti-leakage function includes a base 1, a cylinder sleeve 7 is provided above the base 1, and a threaded joint 9 is coaxially installed on the top of the base 1. The threaded joint 9 extends into the cylinder sleeve 7 and is threadedly connected to the cylinder sleeve 7. In actual use, the base 1 can be fixed on the cylinder sleeve 7 by moving the threaded joint 9 into the cylinder sleeve 7, thus completing the installation.

[0027] like Figure 1 and Figure 3 As shown, a connecting sleeve 12 is coaxially connected to the top of the base 1. When the threaded connector 9 is inserted into the cylinder sleeve 7, the connecting sleeve 12 is fitted on the outer surface of the cylinder sleeve 7, and the inner surface of the connecting sleeve 12 is clearance-fitted with the outer surface of the cylinder sleeve 7. Through the cooperation of the connecting sleeve 12 and the cylinder sleeve 7, the cylinder sleeve 7 can be supported, making the installation of the cylinder sleeve 7 and the threaded connector 9 more stable.

[0028] like Figure 1 and Figure 2 As shown, a first flange 8 is installed on the bottom side of the cylinder liner 7, and a second flange 13 is installed on the top edge of the connecting sleeve 12. When the threaded joint 9 extends into the cylinder liner 7, the first flange 8 is stacked on top of the second flange 13.

[0029] like Figure 2 and Figure 3 As shown, the second flange 13 has several mounting holes 11 on its top, and each mounting hole 11 has a screw 3 inside. The first flange 8 has several strip grooves 6 on its top, and the top of each screw 3 passes through the strip groove 6. Each screw 3 has a locking sleeve 5 on its top and an elastic washer 4 on its top. The elastic washer 4 is located between the first flange 8 and the locking sleeve 5. When the locking sleeve 5 is tightened, the bottom end of the locking sleeve 5 presses tightly against the top of the elastic washer 4. In actual use, by tightening the locking sleeve 5, the first flange 8 and the second flange 13 can be fixed together with the screw 3, thus improving installation stability.

[0030] It should be noted that, as Figure 3 As shown, the bottom end of the screw 3 is set as a hexagonal structure, and the bottom of the second flange 13 is provided with a hexagonal groove 14. The hexagonal groove 14 is connected to the corresponding mounting hole 11. The bottom end of the screw 3 is located in the corresponding hexagonal groove 14. The hexagonal groove 14 can limit the screw 3 and prevent the screw 3 from rotating with the locking sleeve 5 when the locking sleeve 5 is rotated.

[0031] like Figure 3 As shown, a sealing ring 15 is coaxially installed on the top of the base 1. The sealing ring 15 is located between the connecting sleeve 12 and the threaded joint 9. When the threaded joint 9 is inserted into the cylinder sleeve 7, the top of the sealing ring 15 abuts against the bottom of the cylinder sleeve 7 and the two are sealed together. In actual use, the sealing ring 15 can seal the base 1 and the cylinder sleeve 7 to prevent hydraulic oil leakage.

[0032] like Figure 1 and Figure 3 As shown, a receiving groove 2 is provided on the top of the inner surface of the connecting sleeve 12. An elastic connecting piece 17 is provided inside the receiving groove 2. A sealing gasket 10 is installed on one side of the elastic connecting piece 17. The sides of the sealing gasket 10 are sealed to the inner wall of the receiving groove 2 and the outer surface of the cylinder sleeve 7. In actual use, the elasticity of the elastic connecting piece 17 can make the sealing gasket 10 tightly abut against the side wall of the receiving groove 2 and the outer surface of the cylinder sleeve 7, thus completing the seal and preventing hydraulic oil leakage during use.

[0033] It should be noted that, as Figure 4 As shown, the elastic connecting piece 17 is arranged in a "V" shape with its opening facing downwards. During use, when hydraulic oil seeps into the receiving groove 2, the hydraulic oil will exert an upward thrust on the elastic connecting piece 17, such as... Figure 4 As shown by the middle arrow, this will cause the two ends of the elastic connecting piece 17 to spread outward, making the connection between the sealing gasket 10 and the side wall of the receiving groove 2 and the outer surface of the cylinder liner 7 more tight, thus preventing oil leakage.

[0034] like Figure 3 As shown, when the first flange 8 is stacked on top of the second flange 13, the bottom of the first flange 8 abuts against the bent part of the elastic connecting piece 17. In this way, the first flange 8 can fix the elastic connecting piece 17 and prevent the elastic connecting piece 17 from coming off when it is impacted by hydraulic oil.

[0035] Specifically, during installation, the operator aligns the threaded connector 9 on the base 1 with the bottom of the cylinder sleeve 7, then screws the threaded connector 9 into the cylinder sleeve 7. Installation is complete when the bottom of the cylinder sleeve 7 abuts against the top of the sealing ring 15. At this point, the bottom of the first flange 8 contacts the top of the second flange 13. The operator then inserts the screw 3 through the mounting hole 11 and the slot 6. Next, the operator places the elastic gasket 4 on the corresponding screw 3, and then places the locking nut 5 on the screw 3 and tightens it, fixing the first flange 8 and the second flange 13 together securely. After fixing, the elastic connecting piece 17 is located in the receiving groove 2. Under the elastic force of the elastic connecting piece 17, the sealing gasket 10 tightly abuts against the inner wall of the receiving groove 2 and the outer surface of the cylinder sleeve 7, sealing the connection sleeve 12 and the cylinder sleeve 7. This prevents oil leakage during use and improves the performance.

[0036] Furthermore, such as Figure 4 As shown, annular connecting pieces 16 are installed at both ends of the bottom of the elastic connecting piece 17. The inner wall of the receiving groove 2 and the outer surface of the cylinder sleeve 7 abut against the side of the annular connecting piece 16. This increases the contact area between the elastic connecting piece 17 and the inner wall of the receiving groove 2 and the outer surface of the cylinder sleeve 7, thereby improving the stability of the elastic connecting piece 17.

[0037] Furthermore, the length of the screw 3 is less than the distance between the bottom of the second flange 13 and the top of the base 1, so that the screw 3 can pass through the mounting hole 11 and the strip groove 6 from the bottom of the second flange 13, making installation convenient.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cylinder cover with anti-leakage function, comprising a base (1), characterized in that: A cylinder sleeve (7) is provided above the base (1), and a threaded joint (9) is coaxially installed on the top of the base (1). The threaded joint (9) extends into the cylinder sleeve (7) and is threadedly connected to the cylinder sleeve (7). The top of the base (1) is also coaxially connected to a connecting sleeve (12). When the threaded joint (9) is inserted into the cylinder sleeve (7), the connecting sleeve (12) is fitted on the outer surface of the cylinder sleeve (7), and the inner surface of the connecting sleeve (12) is in clearance fit with the outer surface of the cylinder sleeve (7). A sealing ring (15) is coaxially installed on the top of the base (1). The sealing ring (15) is located between the connecting sleeve (12) and the threaded joint (9). When the threaded joint (9) is inserted into the cylinder sleeve (7), the top of the sealing ring (15) abuts against the bottom of the cylinder sleeve (7) and the two are sealed together. The top of the inner surface of the connecting sleeve (12) is provided with a receiving groove (2), and an elastic connecting piece (17) is provided inside the receiving groove (2). A sealing gasket (10) is installed on one side of the elastic connecting piece (17), and the side of the sealing gasket (10) is sealed to the inner wall of the receiving groove (2) and the outer surface of the cylinder sleeve (7). A first flange (8) is installed on the bottom side of the cylinder liner (7), and a second flange (13) is installed on the top edge of the connecting sleeve (12). When the threaded joint (9) extends into the cylinder liner (7), the first flange (8) is stacked on top of the second flange (13). The second flange (13) has several mounting holes (11) on its top. Each mounting hole (11) has a screw (3) inside. The first flange (8) has several slots (6) on its top. The top of each screw (3) passes through the slot (6), and each screw (3) has a locking nut (5) on its top.

2. A cylinder cover with anti-leakage function according to claim 1, characterized in that: The elastic connecting piece (17) is set in a "V" shape, and the opening of the elastic connecting piece (17) faces downward.

3. A cylinder cover with anti-leakage function according to claim 2, characterized in that: Both ends of the bottom of the elastic connecting piece (17) are equipped with annular connecting pieces (16), and the inner wall of the receiving groove (2) and the outer surface of the cylinder liner (7) abut against the side of the annular connecting piece (16).

4. A cylinder cover with anti-leakage function according to claim 1, characterized in that: The length of the screw (3) is less than the distance between the bottom of the second flange (13) and the top of the base (1).

5. A cylinder cover with anti-leakage function according to claim 4, characterized in that: The bottom end of the screw (3) is set as a hexagonal structure, and the bottom of the second flange (13) is provided with a hexagonal groove (14). The hexagonal groove (14) is connected to the corresponding mounting hole (11), and the bottom end of the screw (3) is located in the corresponding hexagonal groove (14).

6. A cylinder cover with anti-leakage function according to claim 1, characterized in that: Each screw (3) is fitted with an elastic gasket (4) at its top. The elastic gasket (4) is located between the first flange (8) and the locking sleeve (5). When the locking sleeve (5) is tightened, the bottom end of the locking sleeve (5) presses tightly against the top of the elastic gasket (4).

7. A cylinder cover with anti-leakage function according to claim 2, characterized in that: When the first flange (8) is stacked on top of the second flange (13), the bottom of the first flange (8) abuts against the bent part of the elastic connecting piece (17).

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