One-way pipe type balance valve

Abstract

The utility model discloses a one-way pipe type balance valve, which relates to the technical field of one-way balance valves, and comprises a valve body, a one-way valve backpressure cavity is arranged in the valve body, a one-way valve spring is arranged in the one-way valve backpressure cavity, a one-way valve core is movably sleeved in the one-way valve spring, and the one-way valve core is arranged in the one-way valve spring. One end of the one-way valve element is fixedly connected with a one-way valve seat, the one-way valve seat is fixedly connected with a one-way valve spring, and one end of the one-way valve seat is movably attached to a balance valve seat. Through the arrangement of the one-way valve element, the one-way valve seat, the balance valve seat, the balance valve element, the balance valve backpressure cavity, the adjusting mechanism and other structures, the one-way valve and the balance valve are both installed in the valve body through the arrangement of the one-way valve backpressure cavity and the balance valve backpressure cavity, and therefore the situation that the balance valve is externally connected with a reversing valve or a shuttle valve is avoided, and the service life of the balance valve is prolonged. Therefore, the balance valve is more compact in structure and more convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of one-way balancing valves, in particular to a one-way tube type balancing valve. Background Art

[0002] A balancing valve is a valve with special functions. There is nothing special about the valve itself, except that its function and location are different. In some industries, due to the large pressure difference or flow difference between the media (various flowable substances) in various parts of the pipeline or container, in order to reduce or balance the difference, a valve is installed between the corresponding pipelines or containers to adjust the relative balance of pressure on both sides, or to achieve flow balance by diversion. This valve is called a balancing valve.

[0003] As an important component in the hydraulic system of construction machinery, the balancing valve is a multifunctional special valve that can be freely opened in the forward direction, hydraulically controlled in the reverse direction and has a pressure limiting function. It is mostly used for hydraulic actuators under load conditions to ensure the safe operation of the actuator under load.

[0004] Most of the existing balancing valves are generally connected to an external brake cylinder when in use, and most of them adopt an external reversing valve or shuttle valve, so that the balancing valve is suitable for use in the hydraulic circuit of the hydraulic motor in the lifting mechanism, which leads to a loose structure of the balancing valve and inconvenience in use. Therefore, a one-way tube balancing valve is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a one-way tube type balancing valve, which solves the problem that the existing one-way tube type balancing valve is generally connected to an external brake cylinder when in use, and most of them adopt an external reversing valve or shuttle valve, so that the balancing valve is suitable for use in the hydraulic circuit of the hydraulic motor in the lifting mechanism, thereby causing the balancing valve to have a loose structure and be inconvenient to use.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a one-way tube balancing valve, comprising a valve body, a one-way valve back-pressure chamber is provided inside the valve body, a one-way valve spring is installed inside the one-way valve back-pressure chamber, a one-way valve core is movably sleeved inside the one-way valve spring, one end of the one-way valve core is fixedly connected to a one-way valve seat, the one-way valve seat is fixedly connected to the one-way valve spring, one end of the one-way valve seat is movably fitted with a balancing valve seat, the surface of the balancing valve seat is movably sleeved with a balancing valve spring, one end of the balancing valve spring is fixedly connected to the balancing valve core, a balancing valve back-pressure chamber is provided inside the valve body near the balancing valve core, the balancing valve core and the balancing valve spring are both slidably connected to the inside of the balancing valve back-pressure chamber, an adjusting mechanism is installed at one end of the one-way valve core, and a first oil port, a second oil port, a third oil port and a fourth oil port are respectively provided at the edge of the valve body surface.

[0008] Further, the first oil port, the second oil port, the third oil port and the fourth oil port are respectively connected to the one-way valve back pressure chamber and the balance valve back pressure chamber, and the one-way valve back pressure chamber is connected to the balance valve back pressure chamber.

[0009] Furthermore, the regulating mechanism comprises a push rod fixedly connected to one side of the one-way valve core, an regulating rod is slidably inserted inside the push rod, and a movable disk slidably connected to the regulating rod is fixedly connected to one side of the push rod.

[0010] Furthermore, both sides of the movable disk surface are fixedly connected with clamping blocks, one side of the valve body is fixedly connected with a valve sleeve, an adjusting cavity is provided inside the valve sleeve, and sliding grooves are provided on the inner top wall and inner bottom wall of the adjusting cavity.

[0011] Furthermore, the two clamping blocks are respectively slidably connected to the inside of the corresponding sliding grooves, the pushing rod and the adjusting rod are both slidably connected to the inside of the adjusting cavity, and the inside of the valve sleeve is fixedly connected with an adjusting motor.

[0012] Furthermore, the output end of the regulating motor is fixedly connected to the regulating rod, the regulating rod is slidably connected to the valve body, the regulating rod is slidably connected to the back pressure chamber of the one-way valve, and the inside of the one-way valve back pressure chamber is fixedly connected with a sealing sleeve corresponding to the one-way valve spring.

[0013] Further, the first oil port corresponds to the third oil port, and the second oil port corresponds to the fourth oil port.

[0014] The utility model has the following beneficial effects:

[0015] By setting the one-way valve core, one-way valve seat, balancing valve seat, balancing valve core, balancing valve back pressure chamber and adjusting mechanism, the one-way valve back pressure chamber and the balancing valve back pressure chamber are set, so that the one-way valve and the balancing valve are both installed inside the valve body, thereby avoiding the balancing valve being externally connected to a reversing valve or a shuttle valve, thereby making the balancing valve structure more compact and making the balancing valve more convenient to use. By setting the adjusting mechanism, the pressure of the one-way valve spring is adjusted, thereby adjusting the oil port flow to meet the actual use of the balancing valve under different loads and different working conditions, solving the problem that the prior art is generally connected to an external brake cylinder and mostly adopts an external reversing valve or a shuttle valve, thereby making the balancing valve suitable for use in the hydraulic circuit of the lifting mechanism to control the hydraulic motor, thereby causing the balancing valve structure to be relatively loose and inconvenient to use.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 It is a partial structural diagram of the regulating mechanism of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Valve body; 2. Check valve back pressure chamber; 3. Check valve spring; 4. Check valve core; 5. Check valve seat; 6. Balance valve seat; 7. Balance valve spring; 8. Balance valve core; 9. Balance valve back pressure chamber; 10. First oil port; 11. Second oil port; 12. Third oil port; 13. Fourth oil port; 14. Push rod; 15. Adjustment rod; 16. Moving disk; 17. Clamping block; 18. Valve sleeve; 19. Adjustment chamber; 20. Sliding groove; 21. Adjustment motor; 22. Sealing sleeve. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0025] 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. 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.

[0026] See also Figure 1-Figure 4 As shown, the utility model is a one-way tube balancing valve, including a valve body 1, a first oil port 10, a second oil port 11, a third oil port 12 and a fourth oil port 13 are respectively opened at the edge of the surface of the valve body 1, the first oil port 10, the second oil port 11, the third oil port 12 and the fourth oil port 13 are respectively connected with the one-way valve back pressure chamber 2 and the balancing valve back pressure chamber 9, the first oil port 10 corresponds to the third oil port 12, the second oil port 11 corresponds to the fourth oil port 13, a one-way valve back pressure chamber 2 is opened inside the valve body 1, a one-way valve spring 3 is installed inside the one-way valve back pressure chamber 2, a sealing sleeve 22 corresponding to the one-way valve spring 3 is fixedly connected inside the one-way valve back pressure chamber 2, a one-way valve spool 4 is movably sleeved inside the one-way valve spring 3, and the one-way valve valve core 4 is movably sleeved inside the one-way valve spring 3. One end of the core 4 is fixedly connected with a one-way valve seat 5, which is fixedly connected with a one-way valve spring 3. The pressure of the one-way valve seat 5 increases through the compression of the one-way valve spring 3, thereby adjusting the flow of the single-phase balancing valve. One end of the one-way valve seat 5 is movably fitted with a balancing valve seat 6, and a balancing valve spring 7 is movably sleeved on the surface of the balancing valve seat 6. One end of the balancing valve spring 7 is fixedly connected with a balancing valve core 8. A balancing valve back pressure chamber 9 is provided inside the valve body 1 near the balancing valve core 8. The arrangement of the one-way valve back pressure chamber 2 and the balancing valve back pressure chamber 9 avoids the balancing valve from being externally connected to a reversing valve or a shuttle valve, thereby making the balancing valve structure more compact and making the balancing valve more convenient to use. The one-way valve back pressure chamber 2 is connected with the balancing valve back pressure chamber 9.

[0027] The balancing valve core 8 and the balancing valve spring 7 are both slidably connected to the inside of the balancing valve back pressure chamber 9. When the balancing valve is in use, the fluid enters the inside of the one-way valve back pressure chamber 2 from the first oil port 10. When the pressure of the fluid is greater than the set pressure, the one-way valve seat 5 pushes the one-way valve core 4 to move inside the one-way valve back pressure chamber 2, so that the one-way valve seat 5 no longer seals the one-way valve back pressure chamber 2, so that the fluid enters the third oil port 12, so that the fluid can be discharged from the third oil port 12, and the one-way valve core An adjusting mechanism is installed at one end of the one-way valve body 4, and the adjusting mechanism includes a push rod 14 fixedly connected to one side of the one-way valve core 4, and an adjusting rod 15 is slidably inserted inside the push rod 14. Through the mutual cooperation of the adjusting rod 15 and the push rod 14, the one-way valve core 4 is more stable when moving. A moving disk 16 slidably connected to the adjusting rod 15 is fixedly connected to one side of the push rod 14, and both sides of the surface of the moving disk 16 are fixedly connected to the clamping blocks 17. A valve sleeve 18 is fixedly connected to one side of the valve body 1. When it is necessary to adjust When the flow inside the one-way balancing valve is adjusted, the fluid pushes the one-way valve seat 5 to move, so that the one-way valve core 4 drives the push rod 14 to move, so that the push rod 14 is engaged with the threaded connection on the surface of the adjusting rod 15, and the valve sleeve 18 is provided with an adjusting chamber 19, and the inner top wall and the inner bottom wall of the adjusting chamber 19 are both provided with sliding grooves 20, and the two clamping blocks 17 are respectively slidably connected to the inside of the corresponding sliding grooves 20, and the push rod 14 and the adjusting rod 15 are both slidably connected to the inside of the adjusting chamber 19, and the valve sleeve 18 An adjusting motor 21 is fixedly connected inside, and an output end of the adjusting motor 21 is fixedly connected to the adjusting rod 15. When the push rod 14 is engaged with the threads on the surface of the adjusting rod 15, the adjusting motor 21 is started, so that its output end drives the adjusting rod 15 to rotate, so that the adjusting rod 15 drives the push rod 14 to move, and synchronously drives the one-way valve core 4 and the one-way valve seat 5 to move synchronously, so that the one-way valve spring 3 is compressed, the adjusting rod 15 is slidably connected to the valve body 1, and the adjusting rod 15 is slidably connected to the back pressure chamber 2 of the one-way valve.

[0028] Specifically, when the one-way tube balancing valve is in use: when the balancing valve is in use, the fluid enters the inside of the one-way valve back pressure chamber 2 from the first oil port 10, and when the pressure of the fluid is greater than the set pressure, the one-way valve seat 5 is pushed to push the one-way valve spool 4 to move inside the one-way valve back pressure chamber 2, so that the one-way valve seat 5 no longer seals the one-way valve back pressure chamber 2, so that the fluid enters the third oil port 12, so that the fluid can be discharged from the third oil port 12, and through the mutual cooperation of the adjusting rod 15 and the pushing rod 14, the one-way valve spool 4 is more stable when moving. When the internal flow of the one-way balancing valve needs to be adjusted, the one-way valve seat 5 is pushed by the fluid to move, so that The one-way valve core 4 drives the push rod 14 to move, so that the push rod 14 is engaged with the thread on the surface of the adjusting rod 15, and then the adjusting motor 21 is started, so that its output end drives the adjusting rod 15 to rotate, so that the adjusting rod 15 drives the push rod 14 to move, and simultaneously drives the one-way valve core 4 and the one-way valve seat 5 to move synchronously, so that the one-way valve spring 3 is compressed, so that the pressure of the one-way valve seat 5 becomes larger through the compression of the one-way valve spring 3, so as to adjust the flow rate of the single-phase balancing valve, and through the setting of the one-way valve back pressure chamber 2 and the balancing valve back pressure chamber 9, the external connection of the balancing valve to the reversing valve or shuttle valve is avoided, so that the balancing valve structure is more compact and the balancing valve is more convenient to use.

[0029] 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.

[0030] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only, and the true scope of the present disclosure is indicated by the following claims.

Claims

1. One-way tube balancing valve, characterized by: The invention comprises a valve body (1), wherein a one-way valve back pressure chamber (2) is provided inside the valve body (1), a one-way valve spring (3) is installed inside the one-way valve back pressure chamber (2), a one-way valve core (4) is movably sleeved inside the one-way valve spring (3), one end of the one-way valve core (4) is fixedly connected to a one-way valve seat (5), the one-way valve seat (5) is fixedly connected to the one-way valve spring (3), one end of the one-way valve seat (5) is movably fitted with a balancing valve seat (6), and the surface of the balancing valve seat (6) is movably sleeved with a balancing valve seat (6). A balancing valve spring (7), one end of the balancing valve spring (7) is fixedly connected to a balancing valve core (8), a balancing valve back pressure chamber (9) is provided inside the valve body (1) near the balancing valve core (8), the balancing valve core (8) and the balancing valve spring (7) are both slidably connected to the inside of the balancing valve back pressure chamber (9), an adjusting mechanism is installed at one end of the one-way valve core (4), and a first oil port (10), a second oil port (11), a third oil port (12) and a fourth oil port (13) are respectively provided at the edge of the surface of the valve body (1).

2. The one-way tube type balancing valve according to claim 1 is characterized in that: The first oil port (10), the second oil port (11), the third oil port (12) and the fourth oil port (13) are respectively connected to the one-way valve back pressure chamber (2) and the balance valve back pressure chamber (9); the one-way valve back pressure chamber (2) is connected to the balance valve back pressure chamber (9).

3. The one-way tube type balancing valve according to claim 1, characterized in that: The regulating mechanism comprises a push rod (14) fixedly connected to one side of the one-way valve core (4), an regulating rod (15) slidably inserted inside the push rod (14), and a movable disk (16) slidably connected to the regulating rod (15) is fixedly connected to one side of the push rod (14).

4. The one-way tube type balancing valve according to claim 3 is characterized in that: Both sides of the surface of the movable disk (16) are fixedly connected with clamping blocks (17), one side of the valve body (1) is fixedly connected with a valve sleeve (18), an adjusting chamber (19) is provided inside the valve sleeve (18), and a sliding groove (20) is provided on the inner top wall and the inner bottom wall of the adjusting chamber (19).

5. The one-way tube type balancing valve according to claim 4 is characterized in that: The two clamping blocks (17) are respectively slidably connected to the inside of the corresponding sliding groove (20), the pushing rod (14) and the adjusting rod (15) are both slidably connected to the inside of the adjusting chamber (19), and the inside of the valve sleeve (18) is fixedly connected with an adjusting motor (21).

6. The one-way tube type balancing valve according to claim 5, characterized in that: The output end of the regulating motor (21) is fixedly connected to the regulating rod (15), the regulating rod (15) is slidably connected to the valve body (1), the regulating rod (15) is slidably connected to the one-way valve back pressure chamber (2), and the interior of the one-way valve back pressure chamber (2) is fixedly connected with a sealing sleeve (22) corresponding to the one-way valve spring (3).

7. The one-way tube type balancing valve according to claim 1, characterized in that: The first oil port (10) corresponds to the third oil port (12), and the second oil port (11) corresponds to the fourth oil port (13).

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