Adjustable overflow valve suitable for large branch
By designing an adjustable relief valve suitable for large branches, the combination of elastic adjusting parts and adjustment knobs solves the problem that existing relief valves are difficult to adjust hydraulic shock and overflow pressure, achieving flexible overflow control and stable liquid flow transmission.
Patent Information
- Application Number
- CN202420780229.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-04-16
AI Technical Summary
It is difficult for existing relief valves to effectively adjust hydraulic shock and overflow pressure in large branches, resulting in unstable overflow, and the implementation cost of configuring multiple independent diverting branches is relatively high.
An adjustable relief valve suitable for large branches is designed, using a combination of elastic adjusting parts and adjustment knobs. The gap between the limit base and the elastic adjusting parts is controlled by the adjustment knobs, and dynamic adjustment of the overflow hole is achieved to adapt to different hydraulic conditions.
It realizes flexible adjustment of hydraulic overflow of large branches, reduces liquid flow impact, improves the response speed and stability of overflow control, and reduces configuration costs.
Smart Images
Figure CN222910396U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an auxiliary control valve applicable to liquid flow transportation, and particularly to an adjustable overflow valve applicable to large branches. Background Art
[0002] For the existing overflow valves, for the shunt or overflow control in the branch, it is mainly the on-off control conducted by a controllable steel ball. It only has a simple cavity cooperating with a spring to limit the steel ball. During use, the spring may be skewed after being compressed, resulting in abnormal reset of the steel ball and abnormal overflow.
[0003] Meanwhile, for some large branches, they will encounter different hydraulic shocks and need to face the requirement of adjustable overflow pressure to meet the needs of different hydraulic passages. Currently, the conventional method is to additionally configure several independent shunt branches on the large branch, and each shunt branch selects different overflow valves to meet the passage and overflow needs of different hydraulics. Such a configuration implementation cost is relatively high. Summary of the Utility Model
[0004] To solve the above technical problems, the purpose of the utility model is to provide an adjustable overflow valve applicable to large branches.
[0005] The adjustable overflow valve applicable to large branches of the utility model includes a valve body, wherein: a diversion end is arranged at the front end of the valve body, an inflow channel is arranged at the front side of the diversion end, several overflow holes are arranged at the front side of the valve body, a valve seat is arranged in the valve body within the diversion end, and when in the standby state, the valve seat blocks the overflow holes, an elastic adjusting member is connected to the valve seat, a regulating knob is threadedly connected to the tail end of the valve body, a limiting base is arranged within the regulating knob, and the tail end of the elastic adjusting member is in movable contact with the limiting base.
[0006] Further, for the above adjustable overflow valve applicable to large branches, the elastic adjusting member includes a valve rod, a spring is sleeved on the valve rod, the front end of the valve rod extends into the valve seat, the rear end of the valve rod extends into the limiting base and has an adjusting gap with the limiting base, the front end of the spring contacts the valve seat, and the rear end of the spring contacts the limiting base.
[0007] Furthermore, for the above adjustable overflow valve applicable to large branches, a receiving groove is arranged at the rear end of the valve rod, a first sealing ring is arranged in the receiving groove, and the first sealing ring contacts the inner wall of the limiting base.
[0008] Furthermore, for the above adjustable overflow valve applicable to large branches, arc chamfers are arranged at both the front and rear ends of the valve rod.
[0009] Furthermore, for the adjustable overflow valve applicable to large branches described above, a positioning post is arranged inside the adjusting knob, a guiding groove is arranged at the corresponding position of the limiting base, and the positioning post is embedded in the guiding groove.
[0010] Furthermore, for the adjustable overflow valve applicable to large branches described above, a limiting boss extends outward from the tail end of the valve body. When the adjusting knob is in the default position, the front end of the adjusting knob abuts against the limiting boss.
[0011] Furthermore, for the adjustable overflow valve applicable to large branches described above, a limiting groove is formed on the limiting boss, a second sealing ring is arranged in the limiting groove, and the second sealing ring contacts the inner side of the front end of the adjusting knob.
[0012] Furthermore, for the adjustable overflow valve applicable to large branches described above, an engagement groove is arranged outside the valve body, and a third sealing ring is arranged in the engagement groove.
[0013] Furthermore, for the adjustable overflow valve applicable to large branches described above, a guiding structure is arranged outside the valve seat, and the guiding structure is a guiding step or a guiding slope.
[0014] Still further, for the adjustable overflow valve applicable to large branches described above, the guiding end is connected to the valve body through a threaded mechanism; or, the guiding end is in interference fit with the valve body.
[0015] By means of the above solution, the utility model has at least the following advantages:
[0016] 1. Through the cooperation of the elastic adjusting member and the adjusting knob, the actual overflow pressure can be adjusted according to different requirements of high hydraulic overflow and low hydraulic overflow of large branches, which is convenient for large branches to cope with the high-flow liquid passing while minimizing the impact of the liquid flow with instantaneous improper pressure as much as possible.
[0017] 2. The elastic adjusting member has a rapid response and can directly reset itself, which can meet the rapid overflow control of large branches during the diversion period.
[0018] 3. An independent limiting base is provided to limit the contact with the rear end of the spring while guiding the position of the rear end of the valve stem, avoiding skew, and ensuring the correct force application and reset of the valve stem and the spring.
[0019] 4. The overall structure is simple, and it can be combined with the docking locking structure reserved for the current conventional large branches. And it can be directly docked with the overflow pipeline on the overflow hole, which is convenient for use.
[0020] The above description is only an overview of the technical solution of the present utility model. In order to understand the technical means of the present utility model more clearly and implement it in accordance with the content of the specification, the following describes in detail with reference to the preferred embodiments of the present utility model and the accompanying drawings. Description of the Drawings
[0021] Figure 1 It is a schematic internal structure diagram of an adjustable overflow valve applicable to large branch roads.
[0022] The meanings of the reference numerals in the drawings are as follows.
[0023] 1 Valve body 2 Flow guiding end
[0024] 3 Inflow channel 4 Overflow hole
[0025] 5 Valve seat 6 Adjusting knob
[0026] 7 Limit base 8 Valve stem
[0027] 9 Spring 10 Adjusting gap
[0028] 11 First sealing ring 12 Positioning post
[0029] 13 Limit boss 14 Second sealing ring
[0030] 15 Third sealing ring 16 Flow guiding structure Detailed Description of the Preferred Embodiment
[0031] The following further describes in detail the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.
[0032] As Figure 1An adjustable overflow valve applicable to large branch roads, including a valve body 1, is characterized in that: a diversion end 2 is arranged at the front end of the valve body 1, and an inflow channel 3 is arranged on the front side of the diversion end 2, which is convenient for sensing normal liquid flow and guiding the liquid flow through during overflow. At the same time, a number of overflow holes 4 are arranged on the front side of the valve body 1, which is convenient for guiding the overflow during overflow. Considering the need for starting control of overflow, a valve seat 5 is arranged in the valve body 1 inside the diversion end 2. When in the standby state, the valve seat 5 blocks the overflow holes 4, which can effectively avoid improper overflow. Considering realizing the control of the overflow node according to the abnormal pressure of the liquid flow corresponding to the current branch road, an elastic adjusting part is connected to the valve seat 5, and an adjusting knob 6 is threadedly connected to the tail end of the valve body 1. Specifically, a limiting base 7 is arranged inside the adjusting knob 6, and the tail end of the elastic adjusting part is in movable contact with the limiting base 7. Thus, by rotating the adjusting knob 6, the free clearance between the limiting base 7 and the tail end of the elastic adjusting part can be controlled, so as to control the corresponding relationship between the valve seat 5 and the overflow holes 4, and then control the actual overflow flow rate. During implementation, a main thread is arranged on the inner wall of the front end of the adjusting knob 6, and a matching secondary thread is arranged at the corresponding position at the rear end of the valve body 1. Furthermore, considering the convenience of assembly combination, the diversion end 2 is connected to the valve body 1 through a threaded mechanism; or, the diversion end 2 is in interference fit with the valve body 1.
[0033] Combined with a preferred embodiment of the present utility model, in order to improve the response speed during overflow control and achieve appropriate elastic control through a mechanical structure, the elastic adjusting part adopted includes a valve rod 8, and a spring 9 is sleeved on the valve rod 8. During implementation, the front end of the valve rod 8 is connected to the valve seat 5, the rear end of the valve rod 8 is connected to the limiting base 7, and there is an adjusting gap 10 between them. At the same time, in order to facilitate adjusting the compressible range of the valve seat 5 through the elastic characteristics of the spring 9, the front end of the spring 9 is in contact with the valve seat 5, and the rear end of the spring 9 is in contact with the limiting base 7.
[0034] Moreover, a receiving groove is arranged at the rear end of the valve rod 8, and a first sealing ring 11 is arranged in the receiving groove, and the first sealing ring 11 is in contact with the inner wall of the limiting base 7. In this way, the rear end of the valve rod 8 can be better in contact with the limiting base 7, and there will be no tremor at the rear end when suddenly impacted by liquid flow, affecting the actual stability. And arc chamfers are arranged at both the front and rear ends of the valve rod 8. Thus, the existence of protrusions or burrs can be avoided, which may affect the forward and backward movement of the valve rod 8.
[0035] Furthermore, a positioning post 12 is provided inside the adjusting knob 6, and a guiding groove is provided at the corresponding position of the limiting base 7, and the positioning post 12 is embedded in the guiding groove. In this way, the adjusting knob 6 can always be combined with the limiting base 7 in the coaxial direction, avoiding skew of the limiting base 7 due to uneven force, and then avoiding improper deformation of the valve stem 8. At the same time, in order to facilitate the user to find the starting position of the default overflow adjustment, a limiting boss 13 extends outward from the tail end of the valve body 1. When the adjusting knob 6 is in the default position, the front end of the adjusting knob 6 abuts against the limiting boss 13. In this way, convenient "zeroing" can be achieved during debugging, that is, when the front end of the adjusting knob 6 abuts, it is the default preset reserved minimum value. And, a limiting groove is provided on the limiting boss 13 of the present utility model, and a second sealing ring 14 is provided in the limiting groove, and the second sealing ring 14 contacts the inner side of the front end of the adjusting knob 6. In this way, external foreign matters can be prevented from adhering to the thread structure.
[0036] In combination with the actual implementation, an engaging groove can also be provided outside the valve body 1, and a third sealing ring 15 is provided in the engaging groove. In this way, during the installation and use of the present utility model, it can be directly docked with the corresponding large-branch overflow pipeline, and after the necessary locking combination is completed, improper external overflow at the combination position can be prevented.
[0037] Furthermore, in order to allow high-pressure liquid to pass through smoothly during overflow and avoid turbulent flow, a guiding structure 16 is provided outside the valve seat 5, and the guiding structure 16 is a guiding step or a guiding slope. In this way, under the guidance of the guiding structure 16, the liquid can flow out through the overflow hole 4 smoothly.
[0038] The working principle of the present utility model is as follows:
[0039] Combine the present utility model with the traditional locking method for the interface reserved in the pipeline of the large branch.
[0040] When in the normal hydraulic state, the valve seat 5 abuts against the overflow hole 4 under the action of the valve stem 8 and the spring 9. At this time, the liquid flow can only return after passing through the inflow channel 3.
[0041] If the hydraulic pressure exceeds the default elastic coefficient of the spring 9 in the elastic adjusting member, the valve seat 5 cooperates with the valve stem 8 to start retracting under the action of the hydraulic pressure, overcoming the elastic coefficient of the spring 9. Thus, the overflow hole 4 is not blocked by the valve seat 5. After that, the liquid flow reaches the overflow hole 4 through the inflow channel 3 under the guidance of the guiding structure 16 and is properly discharged.
[0042] When the hydraulic pressure is in the preset state, the spring 9 overcomes the hydraulic pressure and resets. Subsequently, the valve stem 8 cooperates with the valve seat 5 to reset and block the overflow hole 4.
[0043] During use, several hydraulic pressures are in a low-pressure state, and this low pressure is still within the range that requires overflow. Then, the adjustment knob 6 can be rotated to appropriately retract the limit base 7 and reduce the compression of the spring 9. Thereby, the elastic force acting on the valve seat 5 is reduced, so that the liquid flow at this time can also cause the valve seat 5 to retract moderately to create an overflow hole 4.
[0044] In this way, there is a larger overflow pressure adjustment range, enabling the large branch to meet the requirements of shunting while effectively controlling the overflow conduction according to the hydraulic pressure.
[0045] From the above textual description and in combination with the attached drawings, it can be seen that after adopting the present utility model, the following advantages are possessed:
[0046] 1. Through the cooperation of the elastic adjustment member and the adjustment knob, it is possible to adjust the actual overflow pressure according to the different requirements of high-pressure overflow and low-pressure overflow of the large branch, facilitating the large branch to handle the passage of high-flow liquid while minimizing the impact of instantaneous improper-pressure liquid flow as much as possible.
[0047] 2. The elastic adjustment member responds quickly and can directly reset itself, capable of meeting the rapid overflow control during the shunting of the large branch.
[0048] 3. An independent limit base is provided to limit the contact with the rear end of the spring while guiding the rear end position of the valve stem, preventing skew and ensuring the correct force application and reset of the valve stem and the spring.
[0049] 4. The overall structure is simple and can be combined with the docking locking structure reserved for the current conventional large branch. And it can directly dock the overflow pipeline on the overflow hole, facilitating use.
[0050] In addition, the indicated orientation or positional relationship described in the present utility model is based on the orientation or positional relationship shown in the attached drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or structure referred to must have a specific orientation, or be operated in a specific orientation structure. Therefore, it should not be construed as a limitation to the present utility model.
[0051] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.
Claims
1. An adjustable relief valve suitable for large branches, comprising a valve body, characterized in that: The front end of the valve body is provided with a flow guide end head, the front side of the flow guide end head is provided with an inlet channel, the side edge of the front end of the valve body is provided with a plurality of overflow holes, the valve body is provided with a valve seat inside the flow guide end head, when in a standby state, the valve seat blocks the overflow holes, an elastic adjusting member is connected to the valve seat, the tail end of the valve body is threadedly connected with an adjusting knob, a limit base is provided inside the adjusting knob, and the tail end of the elastic adjusting member is in movably contact with the limit base.
2. The adjustable overflow valve suitable for large branches according to claim 1, characterized in that: The elastic adjustment member includes a valve stem, a spring is sleeved on the valve stem, the front end of the valve stem is connected to the valve seat, the rear end of the valve stem is connected to the limit base, and there is an adjustment gap between the valve stem and the limit base, the front end of the spring is in contact with the valve seat, and the rear end of the spring is in contact with the limit base.
3. The adjustable relief valve suitable for large branches according to claim 2 is characterized in that: A receiving groove is arranged at the rear end of the valve stem, a first sealing ring is arranged in the receiving groove, and the first sealing ring contacts the inner wall of the limiting base.
4. The adjustable relief valve suitable for large branches according to claim 2, characterized in that: The front and rear ends of the valve stem are both provided with arc chamfers.
5. The adjustable overflow valve suitable for large branches according to claim 1, characterized in that: A positioning column is arranged inside the adjusting knob, a guide groove is arranged at a corresponding position of the limiting base, and the positioning column is embedded in the guide groove.
6. The adjustable relief valve suitable for large branches according to claim 1, characterized in that: The tail end of the valve body extends outward to form a limiting boss, and when the adjusting knob is in a default position, the front end of the adjusting knob abuts against the limiting boss.
7. The adjustable relief valve suitable for large branches according to claim 6, characterized in that: The limiting boss is provided with a limiting groove, a second sealing ring is arranged in the limiting groove, and the second sealing ring contacts the inner side of the front end of the adjusting knob.
8. The adjustable relief valve suitable for large branches according to claim 1, characterized in that: A connecting groove is arranged outside the valve body, and a third sealing ring is arranged in the connecting groove.
9. The adjustable relief valve suitable for large branches according to claim 1, characterized in that: A flow guiding structure is arranged outside the valve seat, and the flow guiding structure is a flow guiding step or a flow guiding slope.
10. The adjustable relief valve suitable for large branches according to claim 1, characterized in that: The flow guide end is connected to the valve body through a threaded mechanism; or, the flow guide end is interference fit with the valve body.