Direct-acting sequence valve convenient to maintain
By setting a snap device, a rotating shaft and a control plunger in the direct-moving sequential valve, the problem of difficult disassembly and maintenance of the valve body in the prior art is solved, and convenient maintenance and safety protection during the pressure regulation process is achieved.
Patent Information
- Application Number
- CN202421008867.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The existing direct-moving sequence valves are difficult to disassemble due to the complex structure during disassembly, which makes it difficult for workers to clean and maintain.
By setting up a snap device and a rotating shaft, the portable door is easy to open and close, thereby realizing the disassembly and maintenance of the valve body. At the same time, a control plunger is provided to reduce the stiffness of the pressure regulating spring and prevent damage.
It realizes convenient disassembly and maintenance of the direct-acting sequence valve, reduces maintenance difficulty, and protects the pressure regulating spring during the pressure regulating process to avoid safety accidents.
Smart Images
Figure CN222835989U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of direct-acting sequence valves, in particular to a direct-acting sequence valve which is easy to maintain. Background Art
[0002] The direct-acting sequence valve relies on the pressure oil in the system to directly act on the valve core and balance the spring force to control the opening and closing action of the valve core.
[0003] Many mechanical equipments need to use direct-acting sequence valves for pressure regulation and other purposes. At present, direct-acting sequence valves on the market are difficult to disassemble due to their complex structure and time-consuming and labor-consuming nature. This makes it difficult for workers to clean the components in the direct-acting sequence valves and to perform safe maintenance on them. Aiming at the defect of the prior art that it is difficult to disassemble, a direct-acting sequence valve with a simple structure and easy disassembly and maintenance is provided. Utility Model Content
[0004] The utility model provides a direct-acting sequence valve which is easy to maintain. A snap-fit device is provided to facilitate opening and closing of a portable door. At the same time, by opening the portable door, workers can disassemble the direct-acting sequence valve, so as to facilitate maintenance of the direct-acting sequence valve. A rotating shaft is provided to facilitate opening or closing of the portable door by rotating the rotating shaft. A control plunger is provided to facilitate reducing the stiffness of a pressure-regulating spring when regulating pressure, so as to prevent damage to the pressure-regulating spring and cause safety accidents.
[0005] In order to achieve the above-mentioned purpose, a direct-acting sequence valve that is easy to maintain is provided, comprising a valve body, a snap device is provided at the inner surface of the valve body near the left end, a pressure regulating hand wheel is rotatably connected to the inner surface of the left side of the valve body, a pressure regulating spring is movably connected to the right surface of the pressure regulating hand wheel, a valve core is movably connected to the right surface of the pressure regulating spring, a control plunger is movably connected to the right surface of the valve core, a second passage is provided at the right end of the valve body, a control plunger is slidably connected to the other end of the second passage, a control port is provided at the top position of the second passage, a third passage is fixedly connected to the left position of the control port, an oil inlet is fixedly connected to the left position of the third passage, and a fourth passage is fixedly connected to the bottom of the oil inlet. The control port is provided so that when the pressure reaches the set value of the control port, the hydraulic oil can be drawn out from the control port, and the valve core is provided so that the size of the fourth passage can be changed by moving up and down, thereby controlling the flow of the fluid.
[0006] The buckle device comprises a sliding lock block, a lock core spring, a lock core latch, and a lock buckle, wherein the sliding lock block is slidably connected to the annular outer surface of the lock buckle, and the left surface of the lock core spring is fixedly connected to the right surface inside the lock core latch. The sliding lock block is provided to facilitate the lock core latch to open or close the portable door by moving the sliding lock block, and the lock core spring is provided to facilitate the extension and retraction of the lock core latch.
[0007] The right end of the valve body is movably connected with a rotating shaft, the left surface of the rotating shaft is fixedly connected with a portable door, and the upper surface of the portable door is movably connected with a button near the left side. The rotating shaft is provided to facilitate opening or closing the portable door by rotating the rotating shaft, and the button is provided to facilitate opening the portable door by pressing the button, so as to prevent the portable door from being damaged by pressing other positions of the portable door.
[0008] The valve body is provided with a first cavity inside, the bottom of the pressure regulating hand wheel passes through the valve body and communicates with the first cavity, and the right side surface of the first cavity is fixedly connected to the right side surface of the pressure regulating spring. The first cavity is provided to facilitate the expansion and contraction of the pressure regulating spring, and the pressure regulating hand wheel is provided to facilitate the control of the pressure in the direct-acting sequence valve.
[0009] The third cavity is slidably connected to the surrounding surface of the valve core, and the bottom of the fourth passage is fixedly connected to the inner top of the third cavity. The third cavity is provided to facilitate the control of the flow of hydraulic oil by moving the valve core, and the fourth passage is provided to facilitate the hydraulic oil to enter the interior of the direct-acting sequence valve through the fourth passage.
[0010] The inner bottom of the third cavity is fixedly connected with an oil outlet, and the left surface of the oil outlet is fixedly connected with a first passage. The oil outlet is provided to facilitate the direct-acting sequence valve to discharge the internal hydraulic oil.
[0011] The left side surface of the first passage is fixedly connected with an oil drain port, and the oil drain port passes through the front side surface of the valve body and is fixedly connected with the inner bottom of the first cavity. The oil drain port is provided to facilitate the removal of leaked hydraulic oil.
[0012] The second passage is fixedly connected to the second cavity at one end away from the control port, and the left surface of the second cavity is fixedly connected to the fifth passage. The second passage is provided to facilitate the hydraulic oil to be drawn out from the control port when the pressure reaches the set value of the control port.
[0013] The beneficial effects of the utility model are as follows: the buckle device is provided to facilitate the opening and closing of the portable door, and by opening the portable door, workers can disassemble the direct-acting sequence valve to facilitate maintenance of the direct-acting sequence valve; the rotating shaft is provided to facilitate opening or closing the portable door by rotating the rotating shaft; and the control plunger is provided to facilitate reducing the stiffness of the pressure-regulating spring when adjusting the pressure, so as to prevent damage to the pressure-regulating spring and cause safety accidents.
[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0016] Figure 1 This is a schematic diagram of the overall structure of a direct-acting sequence valve that is easy to maintain in the utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the first cavity of a direct-acting sequence valve that is easy to maintain in the utility model;
[0018] Figure 3 It is a cross-sectional view of one side of the third cavity in a direct-acting sequence valve that is easy to maintain according to the utility model;
[0019] Figure 4 It is a cross-sectional view of one side of the second cavity in a direct-acting sequence valve that is easy to maintain according to the utility model;
[0020] Figure 5 This is a schematic diagram of the internal structure of a portable door in a direct-acting sequence valve that is easy to maintain in the utility model;
[0021] Figure 6 The utility model is a schematic diagram of the internal structure of a snap-fit device in a direct-acting sequence valve which is easy to maintain.
[0022] Legend:
[0023] 1. Valve body; 2. Pressure regulating hand wheel; 3. Button; 4. Control port; 5. Oil inlet; 6. Portable door; 7. Oil drain port; 8. Valve core; 9. Pressure regulating spring; 10. First passage; 11. Oil outlet; 12. Control plunger; 13. Second passage; 14. Third passage; 15. Fourth passage; 16. Buckle device; 1601. Sliding lock block; 1602. Lock core spring; 1603. Lock core latch; 1604. Lock; 17. Rotating shaft; 18. Fifth passage; 19. First cavity; 20. Second cavity; 21. Third cavity. DETAILED DESCRIPTION
[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0025] Reference Figures 1 to 6 The utility model embodiment is a direct-acting sequential valve that is easy to maintain, which includes a snap device 16 arranged on the inner surface of the valve body 1 near the left end, the snap device 16 includes a sliding lock block 1601, a lock core spring 1602, a lock core latch 1603, and a lock 1604. The sliding lock block 1601 is slidably connected to the annular outer surface of the lock latch 1604, and the left side surface of the lock core spring 1602 is fixedly connected to the right side surface inside the lock core latch 1603.
[0026] The left inner surface of the valve body 1 is rotatably connected to a pressure regulating hand wheel 2, a first cavity 19 is arranged inside the valve body 1, the bottom of the pressure regulating hand wheel 2 passes through the valve body 1 and is connected to the first cavity 19, the right side surface of the first cavity 19 is fixedly connected to the right side surface of the pressure regulating spring 9, the right side surface of the pressure regulating hand wheel 2 is movably connected to the pressure regulating spring 9, the right side surface of the pressure regulating spring 9 is movably connected to the valve core 8, the right side surface of the valve core 8 is movably connected to the control plunger 12, the surrounding surfaces of the valve core 8 are slidably connected to the third cavity 21, the right end of the interior of the valve body 1 is movably connected to a rotating shaft 17, the left side surface of the rotating shaft 17 is fixedly connected to a portable door 6, and the upper surface of the portable door 6 is movably connected to a button 3 near the left side.
[0027] A second passage 13 is provided at the right end of the valve body 1, and the other end of the second passage 13 is slidably connected to the control plunger 12, and the end of the second passage 13 away from the control port 4 is fixedly connected to the second cavity 20, and the left side surface of the second cavity 20 is fixedly connected to the fifth passage 18, which passes through the valve body 1 and is fixedly connected to the right side surface of the first cavity 19.
[0028] A control port 4 is provided at the top position of the second passage 13, a third passage 14 is fixedly connected to the left position of the control port 4, an oil inlet 5 is fixedly connected to the left position of the third passage 14, a fourth passage 15 is fixedly connected to the bottom of the oil inlet 5, a bottom position of the fourth passage 15 is fixedly connected to the inner top of the third cavity 21, an oil outlet 11 is fixedly connected to the inner bottom position of the third cavity 21, a first passage 10 is fixedly connected to the left side surface of the oil outlet 11, an oil drain port 7 is fixedly connected to the left side surface of the first passage 10, and the oil drain port 7 passes through the front side surface of the valve body 1 and is fixedly connected to the inner bottom of the first cavity 19.
[0029] Working principle: When maintaining the direct-acting sequence valve, press button 3. Under the force of pressing, the lock core latch 1603 inside the buckle device 16 contacts the sliding lock block 1601, and under the force of pressing, the lock core latch 1603 presses the sliding lock block 1601 to the inner bottom of the buckle device 16. At this time, the sliding lock block 1601 remains stationary under the force of the lock core latch 1603, and at the same time, the inclined surface of the lock core latch 1603 continues to contact the sliding lock block 1601 under the force of pressing, and the inclined surface of the lock core latch 1603 begins to slide downward along the outer inclined surface of the sliding lock block 1601. At the same time, the lock core latch 1603 and the lock core spring 1602 inside it begin to compress until the straight surface of the lock core latch 1603 passes through the outer inclined surface of the sliding lock block 1602. At this time, the lock core latch 1603 and the lock core spring 1602 inside it return to their original length under the action of the spring force, and then rotate The portable door 6 rebounds under the action of the rotating shaft 17, and the lock core latch 1603 moves outward and pushes the sliding lock block 1601 until the outer inclined surface of the sliding lock block 1601 merges with the inclined surface of the lock buckle 1604. At the same time, the lock core latch 1603 and the lock core spring 1602 inside it begin to compress, and then the lock core latch 1603 slides outward along the inner inclined surface of the sliding lock block 1601 under the action of the rebound of the portable door 6. Until the straight surface of the lock core pin 1603 leaves the inner inclined surface of the sliding lock block 1601 and the lock core pin 1603 leaves the lock buckle 1604, the lock core pin 1603 and the lock core spring 1602 inside it return to their original length under the action of the spring force, and the portable door 6 is now opened. When closing the portable door 6, the inclined surface of the lock core pin 1603 slides over the lock buckle 1604 until the straight surface of the lock core pin 1603 passes through the lock buckle 1604, and the portable door 6 is now closed. When the hydraulic oil enters the valve body 1 from the oil inlet 5, it flows into the third cavity 21 through the fourth passage 15. While passing through the fourth passage 15, the hydraulic oil also flows into the second passage 13 through the third passage 14, and then contacts the control plunger 12 through the second passage 13. When the hydraulic pressure acting on the control plunger 12 can overcome the spring force on the pressure regulating spring 9 in contact with the valve core 8, the valve core 8 will move forward. At this time, the first passage 10 is opened, so that the hydraulic oil flows out from the oil outlet 11. When the hydraulic oil leaks in the valve body 1, the hydraulic oil will flow into the first cavity 19 through the fifth passage 18, and then flow out from the oil drain port 7. When the pressure in the valve body 1 reaches the set value of the control port 4, the hydraulic oil flows into the control port 4 from the third passage 13 and is led out by the control port 4.
[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A maintenance-friendly direct-acting sequence valve, comprising a valve body (1), characterized in that: A snap-fit device (16) is provided on the inner surface of the valve body (1) near the left end; the left inner surface of the valve body (1) is rotatably connected to a pressure regulating hand wheel (2); the right surface of the pressure regulating hand wheel (2) is movably connected to a pressure regulating spring (9); the right surface of the pressure regulating spring (9) is movably connected to a valve core (8); the right surface of the valve core (8) is movably connected to a control plunger (12); a second passage (13) is provided at the right end of the valve body (1); the other end of the second passage (13) is slidably connected to the control plunger (12); a control port (4) is provided at the top position of the second passage (13); a third passage (14) is fixedly connected to the left position of the control port (4); an oil inlet (5) is fixedly connected to the left position of the third passage (14); and a fourth passage (15) is fixedly connected to the bottom of the oil inlet (5).
2. A maintenance-friendly direct-acting sequence valve according to claim 1, characterized in that: The buckle device (16) comprises a sliding lock block (1601), a lock core spring (1602), a lock core latch (1603), and a lock catch (1604); the sliding lock block (1601) is slidably connected to the annular outer surface of the lock catch (1604); and the left side surface of the lock core spring (1602) is fixedly connected to the right side surface inside the lock core latch (1603).
3. A maintenance-friendly direct-acting sequence valve according to claim 1, characterized in that: The right end inside the valve body (1) is movably connected to a rotating shaft (17), the left side surface of the rotating shaft (17) is fixedly connected to a portable door (6), and the upper side surface of the portable door (6) is movably connected to a button (3) near the left side.
4. A maintenance-friendly direct-acting sequence valve according to claim 1, characterized in that: A first cavity (19) is provided inside the valve body (1); the bottom of the pressure regulating hand wheel (2) passes through the valve body (1) and is connected to the first cavity (19); the right side surface of the first cavity (19) is fixedly connected to the right side surface of the pressure regulating spring (9).
5. The maintenance-friendly direct-acting sequence valve according to claim 1, characterized in that: The surrounding surfaces of the valve core (8) are slidably connected to a third cavity (21), and the bottom position of the fourth passage (15) is fixedly connected to the inner top of the third cavity (21).
6. A maintenance-friendly direct-acting sequence valve according to claim 5, characterized in that: The inner bottom of the third cavity (21) is fixedly connected to an oil outlet (11), and the left side surface of the oil outlet (11) is fixedly connected to a first passage (10).
7. A maintenance-friendly direct-acting sequence valve according to claim 6, characterized in that The left side surface of the first passage (10) is fixedly connected with an oil drain port (7), and the oil drain port (7) passes through the front side surface of the valve body (1) and is fixedly connected to the inner bottom of the first cavity (19).
8. The maintenance-friendly direct-acting sequence valve according to claim 1, characterized in that: An end of the second passage (13) away from the control port (4) is fixedly connected to a second cavity (20), and a left side surface of the second cavity (20) is fixedly connected to a fifth passage (18).