Multi-channel adjustable balance valve device

Abstract

The utility model relates to a multi-channel adjustable balance valve device which comprises a valve body, a plurality of outer flow guide holes and overflow holes are formed in the valve body, a balance valve element is arranged in the valve body, inner flow guide holes corresponding to the outer flow guide holes in position are formed in the balance valve element, and the inner flow guide holes are communicated and connected with the balance valve element. Buffer valve assemblies are arranged at the two ends of the balance valve element, locking gaskets are further arranged at the two ends of the balance valve element, buffer release holes are formed in the positions, corresponding to the buffer valve assemblies, of the balance valve element, pressure application adjusting assemblies are arranged at the tail ends of the buffer valve assemblies, and the buffer release holes are blocked by the buffer valve assemblies in the default state. Therefore, the design of the double buffer valve assemblies is adopted, overflow balancing or flow dividing can be rapidly and effectively achieved when the main pipeline is impacted by high hydraulic pressure, response is rapid, and local continuous high hydraulic pressure caused by single release can be avoided.

Description

Technical Field

[0001] The utility model relates to a balancing valve, in particular to a multi-channel adjustable balancing valve device. Background Art

[0002] The balancing valve is a valve that performs dynamic and static balancing and adjustment under hydraulic conditions. The internal valve body structure of the existing balancing valve can only be activated when there is a large hydraulic pressure difference. For this reason, the actual corresponding rate is poor. At the same time, when there is an instantaneous high hydraulic pressure passing through, it will cause an impact on the related balancing release components, resulting in resonance and abnormal noise. In addition, for some pipeline distributions with special low-pressure balance or high-pressure suppression, it is necessary to adjust the passability before actual use. The existing balancing valve cannot be released and adjusted, and there are certain compatibility defects in use.

[0003] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a multi-channel adjustable balancing valve device to make it more valuable for industrial use. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a multi-channel adjustable balancing valve device.

[0005] The utility model discloses a multi-channel adjustable balancing valve device, comprising a valve body, wherein: the valve body is provided with a plurality of external flow guide holes and overflow holes, the valve body is provided with a balancing valve core, the balancing valve core is provided with an internal flow guide hole corresponding to the position of the external flow guide hole, and the internal flow guide hole is conductively connected with the balancing valve core, both ends of the balancing valve core are provided with a buffer valve assembly, both ends of the balancing valve core are also provided with a locking gasket, the position of the balancing valve core corresponding to the buffer valve assembly is provided with a buffer release hole, the end of the buffer valve assembly is provided with a pressure regulating assembly, and when in a default state, the buffer valve assembly blocks the buffer release hole.

[0006] Furthermore, in the above-mentioned multi-channel adjustable balancing valve device, the buffer valve assembly includes a guide rod in contact with the pressure regulating assembly, the end of the guide rod is provided with a one-way valve core for blocking the buffer release hole, and a buffer spring is passed through the guide rod.

[0007] Furthermore, in the above-mentioned multi-channel adjustable balancing valve device, the pressure adjustment component includes a force rod connected to the buffer valve component, a force spring is sleeved on the force rod, and a screw plug is threadedly connected to the end of the force rod.

[0008] Furthermore, in the above-mentioned multi-channel adjustable balancing valve device, a limiting ring is provided at one end of the force application rod facing the buffer valve assembly, and a contact sealing ring is provided on the limiting ring.

[0009] Furthermore, in the above-mentioned multi-channel adjustable balancing valve device, a receiving groove is provided at one end of the force application rod facing the buffer valve assembly.

[0010] Furthermore, in the above-mentioned multi-channel adjustable balancing valve device, a plurality of anti-slip grooves are distributed outside the screw plug.

[0011] Furthermore, in the above-mentioned multi-channel adjustable balancing valve device, a combined sealing ring is provided on the screw plug.

[0012] Furthermore, in the above-mentioned multi-channel adjustable balancing valve device, the inner guide hole and the buffer release hole are of concave structure.

[0013] By means of the above solution, the utility model has at least the following advantages:

[0014] 1. The design of double buffer valve assembly can realize fast and effective balanced overflow or diversion when the main pipeline is subjected to high hydraulic pressure impact. It responds quickly and can avoid local continuous high hydraulic pressure caused by single release.

[0015] 2. The liquid tightness at the joint of the balance valve core is better and leakage is not likely to occur.

[0016] 3. It is equipped with a pressure adjustment component to meet the release fine-tuning of the balance threshold and meet the passability requirements of some special hydraulic systems.

[0017] 4. It can adapt to various types of balancing valve housings and meet the connection needs of different interface pipelines, and has good versatility.

[0018] 5. The overall structure is simple, easy to manufacture and use.

[0019] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a multi-channel adjustable balancing valve device.

[0021] The meanings of the reference numerals in the drawings are as follows.

[0022] 1 Valve body 2 External flow hole

[0023] 3 Overflow hole 4 Balance valve core

[0024] 5 Inner guide hole 6 Locking gasket

[0025] 7 Buffer release hole 8 Guide rod

[0026] 9 Check valve core 10 Buffer spring

[0027] 11 Force rod 12 Force spring

[0028] 13 Screw plug 14 Limiting ring

[0029] 15 Contact seal 16 Storage groove

[0030] 17 Combined seal ring DETAILED DESCRIPTION

[0031] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] like Figure 1 The multi-channel adjustable balancing valve device includes a valve body 1, which is different in that: the valve body 1 is provided with a plurality of external flow guide holes 2, which are convenient for achieving effective flow flow guidance under normal hydraulic pressure. The valve body 1 is provided with a plurality of overflow holes 3 for high-pressure balance. At the same time, considering the need for effective overflow balance control during the period when the liquid flow is in abnormal high pressure, a balancing valve core 4 is provided in the valve body 1. Specifically, the balancing valve core 4 is provided with an internal flow guide hole 5 corresponding to the position of the external flow guide hole 2, and the internal flow guide hole 5 is connected to the balancing valve core 4. In this way, the flow conduction needs under normal hydraulic pressure can be met. In addition, buffer valve assemblies are provided at both ends of the balancing valve core 4, which can realize diversion and pressure reduction when a large hydraulic shock occurs, and realize hydraulic balance of the liquid flow. Specifically, in order to ensure the combination stability, locking gaskets 6 are also provided at both ends of the balancing valve core 4. Furthermore, considering the need for rapid release of abnormal hydraulic pressure, a buffer release hole 7 is provided at the position of the balancing valve core 4 corresponding to the buffer valve assembly. During practical use, considering that the pressure definition under abnormal hydraulic pressure, especially high pressure state, needs to be adjusted in accordance with the flow of the pipeline, and considering the convenience of actual balanced release control, a pressure regulating component is provided at the end of the buffer valve assembly. In order to avoid abnormal overflow during daily use, the buffer valve assembly blocks the buffer release hole 7 in the default state.

[0033] In combination with a preferred embodiment of the utility model, the buffer valve assembly includes a guide rod 8 in contact with the pressure regulating assembly. At the same time, a one-way valve core 9 for blocking the buffer release hole 7 is provided at the end of the guide rod 8, and a buffer spring 10 is passed through the guide rod 8, and the buffer spring 10 is in contact with the pressure regulating assembly at the same time. When a high-pressure liquid flow passes through and impacts, appropriate buffering can be achieved to prevent the guide rod 8 from directly hitting the force rod 11 belonging to the pressure regulating group. Moreover, after the hydraulic pressure returns to normal, the buffer spring 10 can be reset to achieve the blocking of the buffer release hole 7. In other words, it can withstand small hydraulic changes during the normal liquid flow, and will not cause the normal hydraulic pressure to impact the one-way valve core 9 and cause abnormal overflow.

[0034] Further, in order to allow the valve seat to cooperate with the buffer spring 10 to bear different hydraulic shocks in the default state and adjust the threshold of the actual pressure release overflow, the pressure adjustment component used includes a force rod 11 connected to the valve seat of the buffer valve assembly. At the same time, a force spring 12 is sleeved on the force rod 11, and a screw plug 13 is threadedly connected to the end of the force rod 11. Specifically, in order to improve the liquid tightness of the joints on both sides of the balance valve core 4, a limit ring 14 is provided at one end of the force rod 11 facing the buffer valve assembly, and a contact seal ring 15 is provided on the limit ring 14. After assembly, one end of the force spring 12 abuts against the contact seal ring 15 to ensure tight connection. At the same time, in order to allow the guide rod 8 to have an appropriate buffer stroke, a receiving groove 16 is provided at one end of the force rod 11 facing the buffer valve assembly. One end of the guide rod 8 is inserted into the receiving groove 16, and there is a release gap with the receiving groove 16. When the end of the receiving groove 16 at one end of the guide rod 8 is completely released, the buffer release hole 7 is in a conducting state.

[0035] In view of the actual implementation, the utility model has a number of anti-slip grooves distributed outside the screw plug 13. In this way, it is convenient for the user to rotate and adjust the screw plug 13 by hand or with a tool, so as to meet the different hydraulic release ranges of the buffer valve assembly and avoid adjustment slippage. At the same time, considering the assembly sealing requirements during the use in combination with the external balancing valve, a combined sealing ring 17 can be provided on the screw plug 13. In this way, it is ensured that a single rotation of the screw plug 13 will not affect the liquid tightness.

[0036] Furthermore, in order to reduce the influence of the frame volume between the various holes during assembly, the inner guide hole 5 and the buffer release hole 7 are concave structures.

[0037] The working principle of the utility model is as follows:

[0038] In the default state, the hydraulic pressure is normal, and the one-way valve core 9 blocks the buffer release hole 7. As a result, the overflow hole 3 located outside the valve body 1 is also in a blocked state. At this time, the outer guide hole 2 and the inner guide hole 5 located inside the valve body 1 are connected to each other, which facilitates the flow of liquid.

[0039] When the hydraulic pressure continues to rise, the liquid starts to push the one-way valve core 9. Then, the buffer spring 10 starts to be compressed, and the one-way valve core 9 gives way to the buffer release hole 7. The liquid flows out through the buffer release hole 7 and the overflow hole 3, and will not cause liquid flow impact on the main pipeline. During this period, due to the use of two buffer valve assemblies, rapid synchronous balance can be achieved, effectively coping with the balance release of instantaneous high hydraulic pressure.

[0040] After the hydraulic pressure returns to normal, the buffer spring 10 is reset, allowing the one-way valve core 9 to continue to block the buffer release hole 7.

[0041] During the debugging period, the user can use the screw plug 13 to adjust the state of the force spring 12, so that the buffer valve assembly can be released only when facing higher or lower hydraulic pressure, so as to achieve different hydraulic balance control needs. Of course, this setting can also be adjusted and the screw plug 13 can be locked directly before leaving the factory according to user needs to avoid misadjustment.

[0042] It can be seen from the above text description and the accompanying drawings that the following advantages are achieved after adopting the utility model:

[0043] 1. The design of double buffer valve assembly can realize fast and effective balanced overflow or diversion when the main pipeline is subjected to high hydraulic pressure impact. It responds quickly and can avoid local continuous high hydraulic pressure caused by single release.

[0044] 2. The liquid tightness at the joint of the balance valve core is better and leakage is not likely to occur.

[0045] 3. It is equipped with a pressure adjustment component to meet the release fine-tuning of the balance threshold and meet the passability requirements of some special hydraulic systems.

[0046] 4. It can adapt to various types of balancing valve housings and meet the connection needs of different interface pipelines, and has good versatility.

[0047] 5. The overall structure is simple, easy to manufacture and use.

[0048] In addition, the indicated orientations or positional relationships described in the present invention are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or structure referred to must have a specific orientation or be operated with a specific orientation structure. Therefore, they cannot be understood as a limitation on the present invention.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A multi-channel adjustable balancing valve device, comprising a valve body, characterized in that: The valve body is provided with a plurality of external flow guide holes and overflow holes, the valve body is provided with a balancing valve core, the balancing valve core is provided with an internal flow guide hole corresponding to the position of the external flow guide hole, and the internal flow guide hole is conductively connected with the balancing valve core, both ends of the balancing valve core are provided with buffer valve assemblies, both ends of the balancing valve core are also provided with locking gaskets, the position of the balancing valve core corresponding to the buffer valve assembly is provided with a buffer release hole, the end of the buffer valve assembly is provided with a pressure regulating assembly, and when in a default state, the buffer valve assembly blocks the buffer release hole.

2. The multi-channel adjustable balancing valve device according to claim 1 is characterized in that: The buffer valve assembly includes a guide rod in contact with the pressure regulating assembly, the end of the guide rod is provided with a one-way valve core for blocking the buffer release hole, and a buffer spring is passed through the guide rod.

3. The multi-channel adjustable balancing valve device according to claim 1 is characterized in that: The pressure regulating assembly comprises a force applying rod connected to the buffer valve assembly, a force applying spring is sleeved on the force applying rod, and a screw plug is threadedly connected to the end of the force applying rod.

4. The multi-channel adjustable balancing valve device according to claim 3 is characterized in that: A limiting ring is arranged at one end of the force application rod facing the buffer valve assembly, and a contact sealing ring is arranged on the limiting ring.

5. The multi-channel adjustable balancing valve device according to claim 3 is characterized in that: A receiving groove is arranged at one end of the force application rod facing the buffer valve assembly.

6. The multi-channel adjustable balancing valve device according to claim 3 is characterized in that: A plurality of anti-slip grooves are distributed outside the screw plug.

7. The multi-channel adjustable balancing valve device according to claim 3 is characterized in that: A combined sealing ring is arranged on the screw plug.

8. The multi-channel adjustable balancing valve device according to claim 1 is characterized in that: The inner flow guide hole and the buffer release hole are concave structures.

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