Buffer damping structure of pressure valve

Abstract

The utility model discloses a buffer damping structure of a pressure valve, which comprises a valve body, a valve core, a valve sleeve and a spring seat, the spring seat is positioned in the valve body, the end part of the valve sleeve is connected with the valve body, the valve core is connected in the valve sleeve, the valve core is connected with the valve body through a buffer component, and the end part of the valve core far away from the buffer component is connected with a damping screw. The buffer damping structure of the pressure valve adopts modular design, the damping screw, the valve core and other components can be independently processed and maintained, and the production efficiency is improved. The damping adjusting function is achieved by replacing a damping screw, and the requirements under different working conditions are met; the buffering function effectively reduces pressure fluctuation and overshoot, and the adjusting stability is improved. By arranging the damping cavity, the buffering effect can be improved; the floating connection design allows the valve element to float within a certain range, and blocking is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic transmission, and in particular relates to a buffer damping structure of a pressure valve. Background Art

[0002] There is a pressure valve design on the market today, in which the valve core and the damping structure are tightly integrated into an integrated structure. Although this design simplifies the assembly process to a certain extent, it exposes a series of problems in practical applications.

[0003] First, because the valve core is closely connected to the damping structure, when the valve is opened or closed, the interaction between the two is likely to produce unnecessary vibrations, which in turn leads to the generation of whistling sounds. This whistling sound not only affects the overall working environment of the equipment, but may also pose a potential threat to the hearing health of the operator.

[0004] The integrated design makes the valve core prone to shaking during operation. This shaking not only affects the stability of the valve, but may also cause the valve to fail to close or open normally, thus affecting the normal operation of the entire system.

[0005] Due to the design of the damping structure, the pressure valve is prone to large overshoot during the adjustment process. This means that when adjusting the valve, more time and effort are required to ensure that the valve can reach the expected open or closed position, which undoubtedly increases the complexity and difficulty of the operation.

[0006] From the processing point of view, since the valve core and the damping structure are integrated, the processing accuracy requirements are very high. Any slight processing error may lead to a decrease in valve performance or even malfunction of the valve. This not only increases the manufacturing cost, but also reduces the reliability and stability of the product.

[0007] Since the valve core and the damping structure are integrated, when different customers have different requirements for the size of the damping hole, the manufacturer needs to process valve cores with different damping hole sizes according to the needs of each customer. This not only increases the complexity and difficulty of production, but may also lead to an increase in production costs and a longer delivery cycle. Utility Model Content

[0008] In order to solve the problems raised in the above-mentioned background technology, the utility model provides the following technical solutions: a buffering and damping structure of a pressure valve, comprising a valve body, a valve core, a valve sleeve, and a spring seat, wherein the spring seat is located in the valve body, the end of the valve sleeve is connected to the valve body, the valve core is connected to the valve sleeve, the valve core is connected to the valve body through a buffer assembly, and the end of the valve core away from the buffer assembly is connected to a damping screw.

[0009] Furthermore, the buffer assembly includes a damping valve seat and a piston rod, the damping valve seat is connected to the end of the valve sleeve, the end of the piston rod is connected to the spring seat, and the valve core is connected to an end of the piston rod away from the spring seat.

[0010] Furthermore, the valve core is floatingly connected to the end of the piston rod.

[0011] Furthermore, the valve core is connected to the end of the piston rod through a cylindrical pin.

[0012] Furthermore, the length of the cylindrical pin is smaller than the diameter of the valve core.

[0013] Furthermore, the valve core is provided with a matching screw hole adapted to the damping screw, and the damping screw is located in the matching screw hole.

[0014] Furthermore, a damping chamber is provided between the damping valve seat and the valve core.

[0015] Furthermore, the piston rod is detachably connected to the spring seat.

[0016] Furthermore, the piston rod is connected to the spring seat via a bolt.

[0017] The beneficial effects of the utility model are as follows: the buffer damping structure of the pressure valve adopts a modular design, and components such as the damping screw and the valve core can be processed and maintained separately, thereby improving production efficiency. The damping adjustment function is achieved by replacing the damping screw to meet the needs under different working conditions; the buffering function effectively reduces pressure fluctuations and overshoot, and improves the adjustment stability. By setting a damping chamber, the buffering effect can be increased; the floating connection design allows the valve core to float within a certain range to prevent it from getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is the front view of the utility model;

[0020] Figure 3 for Figure 2 A-A cross-sectional view;

[0021] Figure 4 for Figure 3 Enlarged view of middle part B;

[0022] Figure 5 It is an explosion diagram of the utility model.

[0023] The meaning of the numbers in the figure are: 1-valve body; 2-valve core; 3-damping screw; 4-valve sleeve; 5-spring seat; 6-damping valve seat; 7-piston rod; 8-cylindrical pin; 9-matching screw hole; 10-damping chamber. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides the following technical solutions: a buffer damping structure of a pressure valve, comprising a valve body 1, a valve core 2, a valve sleeve 4, and a spring seat 5, wherein the spring seat 5 is located in the valve body 1, the end of the valve sleeve 4 is connected to the valve body 1, the valve core 2 is connected to the valve sleeve 4, the valve core 2 is connected to the valve body 1 through a buffer assembly, and a damping screw 3 is connected to the end of the valve core 2 away from the buffer assembly.

[0026] In the above structure, a damping hole is provided on the valve sleeve 4; the structural design allows the valve core 2 to be connected to damping screws 3 of different specifications, which is convenient for adjusting the size of the damping hole, achieving the adjustment of different damping effects, and convenient for changing the size of the damping hole according to customer needs to adapt to different working conditions; the split structure can effectively reduce the difficulty of processing, and the valve core 2 and the piston rod 7 can be processed by a coreless grinder, which reduces the difficulty of processing, greatly improves the processing efficiency, and reduces the production cost;

[0027] In this embodiment, the buffer assembly includes a damping valve seat 6 and a piston rod 7. The damping valve seat 6 is connected to the end of the valve sleeve 4, the end of the piston rod 7 is connected to the spring seat 5, and the valve core 2 is connected to the end of the piston rod 7 away from the spring seat 5.

[0028] In the above structure, the damping valve seat 6 is tightly connected to the valve sleeve 4; the piston rod 7 is used as a transmission component; this structure can effectively control the position of the valve core 2 to ensure accurate opening and closing of the valve.

[0029] In this embodiment, the valve core 2 is floatingly connected to the end of the piston rod 7; the valve core 2 is connected to the end of the piston rod 7 through a cylindrical pin 8; the length of the cylindrical pin 8 is smaller than the diameter of the valve core 2.

[0030] In the above structure, the valve core 2 is floatingly connected to the end of the piston rod 7, allowing the valve core 2 to float within a certain range to adapt to pressure fluctuations and prevent jamming; the floating connection is achieved through a cylindrical pin 8, the length of which is smaller than the diameter of the valve core 2, so that the piston rod 7 can float and center.

[0031] In this embodiment, the valve core 2 is provided with a matching screw hole 9 adapted to the damping screw 3 , and the damping screw 3 is located in the matching screw hole 9 .

[0032] By adopting the above structure, the damping screw 3 can be accurately connected to the fitting screw hole 9.

[0033] In this embodiment, a damping chamber 10 is provided between the damping valve seat and the valve core 2 .

[0034] In the above structure, the damping chamber 10 can increase the buffering function, reduce pressure fluctuation and overshoot, and improve the stability of regulation.

[0035] In this embodiment, the piston rod 7 is detachably connected to the spring seat 5 .

[0036] In the above structure, the piston rod 7 and the spring seat 5 are detachably connected, which allows maintenance and replacement of parts without disassembling the entire valve.

[0037] In this embodiment, the piston rod 7 is connected to the spring seat 5 via bolts.

[0038] The above structure is adopted to facilitate quick installation and disassembly.

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

Claims

1. A buffer damping structure of a pressure valve, comprising a valve body, a valve core, a valve sleeve, and a spring seat, wherein the spring seat is located in the valve body, an end of the valve sleeve is connected to the valve body, and the valve core is connected to the valve sleeve, characterized in that: The valve core is connected to the valve body through a buffer assembly, and the end of the valve core away from the buffer assembly is connected to a damping screw.

2. A buffer damping structure for a pressure valve according to claim 1, characterized in that: The buffer assembly comprises a damping valve seat and a piston rod. The damping valve seat is connected to the end of the valve sleeve, the end of the piston rod is connected to the spring seat, and the valve core is connected to an end of the piston rod away from the spring seat.

3. The buffer damping structure of a pressure valve according to claim 2, characterized in that: The valve core is floatingly connected to the end of the piston rod.

4. The buffer damping structure of a pressure valve according to claim 3, characterized in that: The valve core is connected to the end of the piston rod through a cylindrical pin.

5. The buffer damping structure of a pressure valve according to claim 4, characterized in that: The length of the cylindrical pin is smaller than the diameter of the valve core.

6. The buffer damping structure of a pressure valve according to claim 1, characterized in that: The valve core is provided with a matching screw hole matched with the damping screw, and the damping screw is located in the matching screw hole.

7. The buffer damping structure of a pressure valve according to claim 2, characterized in that: A damping chamber is arranged between the damping valve seat and the valve core.

8. The buffer damping structure of a pressure valve according to claim 2, characterized in that: The piston rod is detachably connected to the spring seat.

9. The buffer damping structure of a pressure valve according to claim 8, characterized in that: The piston rod is connected to the spring seat via a bolt.

Images