Hexagonal sleeve for hydraulic valve body

Abstract

The hexagonal sleeve for the hydraulic valve body comprises a sleeve body, the top of the sleeve body is a hexagonal section, the bottom of the sleeve body is a threaded section, a threaded hole and an annular groove are formed in the center of the hexagonal section, a through hole is formed in the center of the threaded section, the threaded hole, the annular groove and the through hole are sequentially communicated, and the axis of the threaded hole, the axis of the annular groove and the axis of the through hole are consistent. The inner wall of the threaded hole is provided with internal threads, and the outer wall of the threaded section is provided with external threads. The sleeve body is provided with a plurality of chamfers and fillets, the precision is high, the sleeve body can be better matched with corresponding parts, friction is reduced, and the service life is prolonged; and the material is S45C, the hardness is high, the abrasion resistance is good, and the reliability of connection with the valve body is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic system fittings, in particular to a hexagonal socket for a hydraulic valve body. Background Art

[0002] A hydraulic valve is an automatic component operated by pressure oil. It is controlled by the pressure oil of a pilot valve and is usually used in combination with an electromagnetic pilot valve. It can be used to remotely control the on-off of the oil, gas, and water pipeline systems of a hydropower station. It is commonly used in oil circuits such as clamping, control, and lubrication. There are direct-acting and pilot-operated types, and the pilot-operated type is mostly used.

[0003] Patent document CN218000829U discloses a nylon plug for a hydraulic component, which includes a locking nut. A positioning platform is provided at the inner diameter of the locking nut, and a locking inner core is provided inside the locking nut. A positioning protrusion is provided on the locking inner core, and positioning is achieved by matching the positioning protrusion with the positioning platform. The locking inner core is provided with an axially non-through structure; the outer diameter of the locking inner core is provided with a taper structure. When the inner thread of the locking nut is connected to the outer thread of the hydraulic pipe fitting, the hydraulic pipe fitting squeezes the tapered outer diameter on the locking inner core to make its positioning protrusion and the positioning platform squeeze and seal. An elastic sealing device is also provided on the locking inner core to achieve secondary extrusion sealing. The advantages of this nylon plug for a hydraulic component are summarized as follows: 1. Light weight; 2. Cost reduction; 3. High production efficiency; 4. Adopting an expansion structure design, there will be no airtight area during the sealing process, and the screwing strength is guaranteed.

[0004] In the above solution, this nylon plug for a hydraulic component belongs to a fitting for a hydraulic system pipeline and is used for plugging the end of a hydraulic pipeline. However, the strength and wear resistance of the nylon material are poor, and one end is closed, and its size does not match the connecting valve body of the hydraulic system. The smoothness and precision of the locking nut also do not meet the requirements of the corresponding components. Therefore, it is necessary to provide a hexagonal socket for a hydraulic valve body to solve the deficiencies of the prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art and provide a hexagonal socket for a hydraulic valve body.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A hexagonal socket for a hydraulic valve body includes a socket body. The top of the socket body is a hexagonal section, the middle of the socket body is a cylindrical section, and the bottom of the socket body is a threaded section. A threaded hole and a ring groove are provided at the center of the hexagonal section. A through hole is provided at the center of the cylindrical section. The threaded hole, the ring groove, and the through hole are sequentially communicated, and the axes of the threaded hole, the ring groove, and the through hole are the same. The inner wall of the threaded hole is provided with an internal thread, and the outer wall of the threaded section is provided with an external thread.

[0008] The present utility model is further configured such that a first chamfer is provided at the top of the cylindrical section, the middle part of the cylindrical section is smooth, and a first fillet is provided at the bottom of the cylindrical section.

[0009] The present utility model is further configured such that a transition section is provided between the cylindrical section and the threaded section.

[0010] The present utility model is further configured such that a second fillet is provided at the connection between the transition section and the cylindrical section, and a second chamfer is provided at the connection between the transition section and the threaded section.

[0011] The present utility model is further configured such that a third chamfer is provided at the bottom of the through hole.

[0012] The present utility model is further configured such that a third fillet is provided at the connection between the third chamfer and the inner wall of the through hole.

[0013] The present utility model is further configured such that the material of the sleeve body is S45C.

[0014] The present utility model is further configured such that the internal thread is adapted to the corresponding thread plug gauge.

[0015] The present utility model is further configured such that the external thread is adapted to the corresponding thread ring gauge.

[0016] In summary, the present utility model has the following beneficial effects:

[0017] 1. The sleeve body of the present utility model is provided with multiple chamfers and fillets, with high precision, which can better adapt to the corresponding components, reduce friction, and improve the service life.

[0018] 2. In the processing process of the present utility model, multiple cutting tools are used for processing and programmed control, ensuring its accuracy and consistency, with a high degree of automation, reducing errors and defects, and improving its reliability and life.

[0019] 3. The material of the present utility model is S45C, which has high hardness and good wear resistance, and has higher reliability in connection with the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the front view of the present utility model.

[0021] Figure 2 is the top view of the present utility model.

[0022] Figure 3 is the sectional view taken along A-A of the present utility model Figure 2 in the present utility model.

[0023] Figure 4 is the present utility model Figure 3 is the enlarged view of A in the present utility model.

[0024] Figure 5 is the present utility modelFigure 3 Enlarged view of B in the figure.

[0025] In the figure, 1. Sleeve body, 2. Hexagonal section, 3. Cylindrical section, 4. Threaded section, 5. Threaded hole, 6. Ring groove, 7. Through hole, 8. Internal thread, 9. External thread, 10. Chamfer 1, 11. Fillet 1, 12. Transition section, 13. Fillet 2, 14. Chamfer 2, 15. Chamfer 3, 16. Fillet 3. Specific implementation mode

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0027] Embodiment 1:

[0028] In this embodiment, as Figures 1-5 shown, a hexagonal sleeve for a hydraulic valve body proposed by the present utility model includes a sleeve body 1. The top of the sleeve body is a hexagonal section 2, the middle of the sleeve body is a cylindrical section 3, and the bottom of the sleeve body is a threaded section 4. A threaded hole 5 and a ring groove 6 are provided at the center of the hexagonal section. A through hole 7 is provided at the center of the cylindrical section. The threaded hole, the ring groove and the through hole are sequentially penetrated, and the axes of the threaded hole, the ring groove and the through hole are the same. An internal thread 8 is provided on the inner wall of the threaded hole, and an external thread 9 is provided on the outer wall of the threaded section.

[0029] In this example, the hexagonal section, the cylindrical section, the transition section and the threaded end are sequentially connected and integrally formed. The length of the sleeve body is 66 mm, the length of the hexagonal section is 10 mm, the length of the cylindrical section is 45 mm, the diameter parameter of the cylindrical section is φ35 mm, with a lower tolerance of 0.01 mm, the total length of the transition section and the threaded end is 11 mm, the length of the transition section is 3.5 mm, with an upper tolerance of 0.25 mm, the diameter parameter of the transition section is φ26 mm, with a lower tolerance of 0.08 mm, the internal thread parameter is M10*P1.0 mm, the diameter parameter of the ring groove is φ19 mm, the length of the ring groove is 2 mm, the diameter parameter of the through hole is φ18 mm, with an upper tolerance of 0.05 mm, and the external thread parameter is M30*P1.5 mm.

[0030] In this embodiment, it is further set that a first chamfer 10 is provided at the top of the cylindrical section, the middle of the cylindrical section is smooth, and a first fillet 11 is provided at the bottom of the cylindrical section.

[0031] In this example, the dimensional parameter of the first chamfer is C0.5mm, and the dimensional parameter of the first fillet is R0.3mm.

[0032] In this embodiment, it is further set that a transition section 12 is provided between the cylindrical section and the threaded section.

[0033] In this embodiment, it is further set that a second fillet 13 is provided at the connection between the transition section and the cylindrical section, and a second chamfer 14 is provided at the connection between the transition section and the threaded section.

[0034] In this example, the dimensional parameter of the second chamfer is C2mm, and the dimensional parameter of the second fillet is R0.3mm.

[0035] In this embodiment, it is further set that a third chamfer 15 is provided at the bottom of the through hole.

[0036] In this example, the angle of the third chamfer is 30 degrees, and the axial length of the third chamfer is 2mm.

[0037] In this embodiment, it is further set that a third fillet 16 is provided at the connection between the third chamfer and the inner wall of the through hole.

[0038] In this example, the dimensional parameter of the third fillet is R1.5mm.

[0039] In this embodiment, it is further set that the material of the sleeve body is S45C. S45C is a kind of carbon steel, belonging to the medium carbon steel category, and has relatively high hardness and good wear resistance. This material is commonly used for parts that require a certain degree of wear resistance and hardness, such as automotive parts, engine parts, mechanical parts, etc.

[0040] In this example, after the chamfers, fillets and threads are processed by a cutting tool and drill bit multiple times, it is still necessary to manually remove the sharp corners and burrs to avoid affecting the connection and installation of the mating parts.

[0041] Embodiment 2:

[0042] In this embodiment, as Figure 3 shown, the internal thread is adapted to the corresponding thread plug gauge. The thread plug gauge is a tool specifically used to measure the size of the internal thread, and it can help ensure that the accuracy and quality of the internal thread meet the standards.

[0043] In this embodiment, it is further set that the external thread is adapted to the corresponding thread ring gauge. The thread ring gauge, also known as the calibration ring gauge, is a tool specifically used to measure the size of the external thread, and it can help ensure that the accuracy and quality of the external thread meet the standards.

[0044] The thread plug gauge and the thread ring gauge are both existing products and can be purchased from the market, so no further elaboration will be made here. Each sleeve body needs to be inspected to become a qualified product.

[0045] In the description of the present utility model, it should be noted that when terms indicating the orientation or positional relationship such as "upper", "lower", "inner", "outer", "left", "right", etc. appear, they should be understood as based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, when terms such as "first", "second", etc. appear, they are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A hexagonal socket for a hydraulic valve body, comprising a socket body, characterized in that, The top of the sleeve body is a hexagonal section, the middle of the sleeve body is a cylindrical section, and the bottom of the sleeve body is a threaded section. A threaded hole and a ring groove are provided at the center of the hexagonal section, a through hole is provided at the center of the cylindrical section, the threaded hole, the ring groove and the through hole are sequentially penetrated, and the axes of the threaded hole, the ring groove and the through hole are the same. Internal threads are provided on the inner wall of the threaded hole, and external threads are provided on the outer wall of the threaded section.

2. The hexagonal socket for a hydraulic valve body according to claim 1, characterized in that, A first chamfer is provided at the top of the cylindrical section, the middle of the cylindrical section is smooth, and a first fillet is provided at the bottom of the cylindrical section.

3. A hexagonal socket for a hydraulic valve body according to claim 2, characterized in that, A transition section is provided between the cylindrical section and the threaded section.

4. The hexagon socket for a hydraulic valve body according to claim 3, characterized in that, A second fillet is provided at the connection between the transition section and the cylindrical section, and a second chamfer is provided at the connection between the transition section and the threaded section.

5. A hexagonal socket for a hydraulic valve body according to claim 1, characterized in that, A third chamfer is provided at the bottom of the through hole.

6. The hexagonal socket for a hydraulic valve body according to claim 5, characterized in that, A third fillet is provided at the connection between the third chamfer and the inner wall of the through hole.

7. A hexagonal socket for a hydraulic valve body according to claim 1, characterized in that, The material of the sleeve body is S45C.

8. A hexagonal socket for a hydraulic valve body according to claim 1, characterized in that, The internal threads are adapted to the corresponding thread plug gauges.

9. A hexagonal socket for a hydraulic valve body according to claim 1, wherein, The external threads are adapted to the corresponding thread ring gauges.

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