Fluid valve

Abstract

The invention discloses a fluid valve, comprising a valve body having an inlet channel and an outlet channel; the valve element is located in the valve body and can move to control the communication state between the inlet channel and the outlet channel; the executing mechanism is used for driving the valve element to be switched between the normally-closed state and the normally-open state. The executing mechanism comprises an executing rod connected with the valve element through a valve rod. The spring applies force to the execution rod to keep the valve element in a normally-closed state; the lock rod automatically locks the execution rod to ensure that the valve core is in a normally open state after the execution rod opens the valve core; and the unlocking rod is used for unlocking the execution rod by the locking rod, so that the execution rod returns to the initial position under the action of the spring. According to the fluid valve, by optimizing the design of an executing mechanism, a simpler and more convenient operation mode, a more stable opening and closing state and more flexible multi-outlet fluid distribution capacity are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid control, and particularly to a fluid valve. Background Art

[0002] A fluid valve is a device specifically designed to control the flow of fluids, which realizes the control of fluid flow rate by opening, closing or adjusting fluid channels. Traditional mechanical fluid valves usually include a main body structure, i.e., a valve body, with inlet and outlet channels built therein, and rely on the movement of a valve core between these channels to achieve the opening and closing operations. However, there are some significant inconveniences in the operation modes of existing mechanical fluid valves.

[0003] Firstly, many traditional fluid valves rely on manually operating complex mechanical structures to complete the opening and closing actions, which not only increases the operation difficulty but also may lead to problems such as incomplete closing or unstable states. Especially under high-pressure or high-flow conditions, manually closing the valve may require applying a large force, thus causing operation difficulties and increasing the risk of errors. Secondly, existing fluid valves perform poorly in maintaining states. Due to the lack of an effective locking mechanism, the state switching of the valve is often neither rapid nor stable enough. For example, in some application scenarios, the valve needs to frequently switch between the normally open and normally closed states, and the existing designs are difficult to respond quickly and maintain the required open and closed states. Finally, existing multi-outlet fluid distribution systems usually need to additionally install branch passages (such as three-way, four-way, etc.) on the pipeline where the fluid valve is located, which undoubtedly increases the complexity and installation cost of the system. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to provide a fluid valve to achieve a more convenient operation mode, a more stable open and closed state, and a more flexible multi-outlet fluid distribution ability.

[0005] To solve the above technical problem, the technical solution of the present invention is:

[0006] The present invention provides a fluid valve, comprising:

[0007] A valve body having an inlet channel and an outlet channel;

[0008] A valve core located in the valve body and capable of moving to control the communication state between the inlet channel and the outlet channel;

[0009] An actuator for driving the valve core to switch between the normally closed state and the normally open state;

[0010] The actuator includes:

[0011] An actuating rod connected to the valve core through a valve stem;

[0012] A spring applying force to the actuating rod to keep the valve core in the normally closed state;

[0013] A locking rod that automatically locks the actuating rod after the actuating rod opens the valve core to ensure that the valve core is in an always-open state;

[0014] An unlocking rod for releasing the locking of the actuating rod by the locking rod, so that the actuating rod returns to its initial position under the action of the spring.

[0015] Preferably, a valve cover is provided at the top of the valve body. The valve rod passes through the valve cover and is connected to the valve core, and the valve core can move along the valve cavity inside the valve body.

[0016] Preferably, both the inlet passage and the outlet passage are provided on the side of the valve body and penetrate the valve cavity, and the inlet passage is higher than the outlet passage.

[0017] Preferably, there are multiple outlet passages. The multiple outlet passages penetrate the bottom of the valve cavity, and the inlet passage is single and penetrates the side of the valve cavity.

[0018] Preferably, a valve housing is provided on the top of the valve cover. One end of the actuating rod is a hinged end and is hinged to the valve housing, and the other end is an actuating end and extends out of the valve housing. The spring is arranged close to the actuating end of the actuating rod.

[0019] Preferably, the locking rod is hinged to the valve housing and a torsion spring is arranged at the hinge, and the unlocking rod is hinged to the locking rod and can move along the valve housing to drive the locking rod to rotate.

[0020] Preferably, the top of the valve housing is formed into a U-shaped handle, and the unlocking rod extends into the U-shaped cavity formed by the U-shaped handle.

[0021] Preferably, a first spring seat is hinged at a position of the actuating rod close to the actuating end, and a second spring seat is correspondingly hinged inside the valve housing. Both ends of the spring are respectively connected to the first spring seat and the second spring seat.

[0022] Preferably, a locking section is arranged at the hinged end of the actuating rod. The locking section is provided with a guiding inclined surface and a locking groove. During the upward movement of the actuating end of the actuating rod, the actuating rod drives the locking section to act on the locking rod, and the locking rod is automatically guided into the locking groove under the action of the guiding inclined surface.

[0023] Preferably, the locking rod has a first end, a second end and a third end. The first end forms a locking end, and the second end and the third end are respectively hinged to the valve housing and the unlocking rod to form hinged ends, and a torsion spring is arranged between the second end and the valve housing.

[0024] Adopting the above technical solutions, the beneficial effects of the present invention are:

[0025] Compared with the prior art, in the present invention, by introducing an actuator formed by an actuating rod and the like, the user can more conveniently control the state of the fluid valve. The spring in the actuator ensures that the valve core can be in a normally closed state, and the locking rod in the actuator can automatically lock after the actuating rod drives the valve core to the open position, ensuring that the valve core is in a stable normally open state. In addition, the fluid valve structure of the present invention allows for directly arranging a plurality of outlet channels without the need to rely on an external branch passage pipe, simplifying the overall structure and improving the uniformity and efficiency of fluid distribution. Therefore, through the optimization of the actuator design, the fluid valve of the present invention achieves a more convenient operation mode, a more stable switching state, and a more flexible multi-outlet fluid distribution ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a perspective structural view of the valve core in the normally open state in an embodiment of the present invention.

[0027] Figure 2 is Figure 1 the top view of.

[0028] Figure 3 and Figure 4 is Figure 1 the sectional view of.

[0029] Figures 5 to 7 is Figure 3 the structural view of the actuator in.

[0030] Figure 8 is Figure 3 the sectional view of the valve body in.

[0031] Figure 9 and Figure 10 are the sectional structural views of the valve core in the normally open state in an embodiment of the present invention.

[0032] In the figure:

[0033] 10 is the valve body, 11 is the inlet channel, 12 is the outlet channel, 13 is the valve cover, and 14 is the valve housing.

[0034] 20 is the valve core, and 21 is the valve rod.

[0035] 30 is the actuator, 31 is the actuating rod, 311 is the locking section, 312 is the guiding inclined surface, 313 is the locking groove, 32 is the spring, 321 is the first spring seat, 322 is the second spring seat, 33 is the locking rod, 331 is the torsion spring, 332 is the first end, 333 is the second end, 334 is the third end, and 34 is the unlocking rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The following will further describe in detail the specific implementation manners of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0037] As Figures 1 to 10 shown, the fluid valve of this embodiment includes a valve body 10, a valve core 20 and an actuator 30. The valve body 10 has a single inlet passage 11 and five outlet passages 12. The single inlet passage 11 and the five outlet passages 12 are both arranged on the side of the valve body 10 and penetrate through the valve cavity of the valve body 10. Among them, the inlet passage 11 penetrates through the side of the valve cavity and is higher than the outlet passages 12. This design enables the fluid valve to achieve the function of one inlet and five outlets without the need to rely on external branch passage pipes, thereby simplifying the overall structure and improving the uniformity and efficiency of fluid distribution.

[0038] The valve core 20 is located in the valve cavity of the valve body 10 and can move up and down along the valve cavity to control the communication state between the inlet passage 11 and the outlet passages 12. Specifically, the valve core 20 is adapted to the cross-sectional area of the valve cavity and is essentially a seal, which can be made of rubber material. When the valve core 20 is in the closed state, it blocks the fluid flow between the inlet passage 11 and the outlet passages 12. When the valve core 20 moves upward, the inlet passage 11 gradually communicates with the multiple outlet passages 12, realizing the opening function of the valve. In this way, not only the efficient distribution of the fluid is ensured, but also the functions of one inlet and multiple outlets or multiple inlets and one outlet or multiple inlets and multiple outlets can be realized.

[0039] The actuator 30 is used to drive the valve core 20 to switch between the normally closed state and the normally open state. The actuator includes an actuator rod 31, a spring 32, a locking rod 33 and an unlocking rod 34. The actuator rod 31 is connected to the valve core 20 through a valve stem 21, and all three are rotatably connected to allow the actuator rod 31 to drive the valve core 20 to move up and down in the valve cavity through the valve stem 21. Specifically, a valve cover 13 is provided at the top of the valve body 10. The valve stem 21 penetrates through the valve cover 13 and is connected to the valve core 20. A valve housing 14 is provided at the top of the valve cover 13. One end of the actuator rod 31 is a hinged end and is hinged to the valve housing 14. The other end of the actuator rod 31 is an actuator end and extends out of the valve housing 14. A relief groove is provided in the valve housing 14 corresponding to the actuator end of the actuator rod 31 to allow the actuator end of the actuator rod 31 to be lifted. The spring 32 is arranged near the actuator end of the actuator rod 31. A first spring seat 321 is hinged at a position near the actuator end of the actuator rod 31, and a second spring seat 322 is correspondingly hinged inside the valve housing 14. The two ends of the spring 32 are respectively connected to the first spring seat 321 and the second spring seat 322. The spring 32 applies a force to the actuator rod 31 to keep the actuator rod 31 in a horizontal state, and thus the valve core 20 is located at the bottom of the valve cavity and remains in the normally closed state.

[0040] In this way, when the actuating end of the actuating rod 31 is lifted upward, the actuating rod 31 drives the valve core 20 to move upward, gradually connecting the inlet passage 11 with the plurality of outlet passages 12 to open the valve core 20. At the same time, the locking rod 33 automatically locks the actuating rod 31 after the actuating rod 31 opens the valve core 20 to ensure that the valve core 20 is in the normally open state, and the unlocking rod 34 is used to release the locking of the locking rod 33 on the actuating rod 31, so that the actuating rod 31 returns to its initial position under the action of the spring 32. It can be seen that through this embodiment, the user can more conveniently control the state of the fluid valve. The spring 32 in the actuating mechanism 30 ensures that the valve core 20 can be in the normally closed state, and the locking rod 33 in the actuating mechanism 30 can automatically lock after the actuating rod 31 drives the valve core 20 to the open position, ensuring that the valve core 20 is in a stable normally open state. Therefore, the fluid valve of this embodiment realizes a more convenient operation mode, a more stable switching state and a more flexible multi-outlet fluid distribution ability through optimizing the design of the actuating mechanism.

[0041] The locking rod 33 is hinged to the valve housing 14 and a torsion spring 331 is arranged at the hinge, and the unlocking rod 34 is hinged to the locking rod 33 and can move along the valve housing 14 to drive the locking rod 33 to rotate. Specifically, the locking rod 33 has a first end 332, a second end 333 and a third end 334. The first end 332 forms a locking end, and the second end 333 and the third end 334 are respectively hinged to the valve housing 14 and the unlocking rod 34 to form hinge ends, and the torsion spring 331 is arranged between the second end 333 and the valve housing 14. The actuating rod 31 is provided with a locking section 311 at the hinge end. The locking section 311 is provided with a guiding inclined surface 312 and a locking groove 313. During the upward movement of the actuating end of the actuating rod 31, the actuating rod 31 drives the locking section 311 to act on the first end 332 of the locking rod 33. The first end 332 is substantially in contact with the guiding inclined surface 312 under the action of the torsion spring 331, so it will be automatically guided into the locking groove 313 under the action of the guiding inclined surface 312, thus realizing the locking of the actuating rod 31. The top of the valve housing 14 is formed into a U-shaped handle, and the unlocking rod 34 extends into the U-shaped cavity formed by the U-shaped handle. This not only facilitates the user to hold the U-shaped handle and at the same time facilitates pulling the unlocking rod 34 upward to realize the unlocking action, but also the U-shaped handle serves as an installation position to install the entire fluid valve on other objects, such as hoisting or fixing to a bracket through a rope.

[0042] Under normal conditions, as shown in Figure 9 and Figure 10 shown, the spring 32 applies a force to the actuating rod 31 to make the actuating rod 31 substantially in a horizontal state. At this time, the valve core 20 is located at the bottom of the valve cavity and remains in the normally closed state. When the valve core 20 needs to be opened, only by lifting the actuating end of the actuating rod 31 upward, the valve core 20 can be driven to move upward in the valve cavity by the valve rod 21 to open. After reaching the position, the locking rod 33 automatically locks the actuating rod 31 so that the valve core 20 remains in the normally open state as shown in Figure 3 andFigure 4 As shown. If it is necessary to close the valve core 20, it is only necessary to hold the U-shaped handle at the top of the valve housing 14 with one hand and lift the unlocking lever 34 upward with one hand at the same time.

[0043] The present invention is not limited to the above specific embodiments. Those skilled in the art can make various changes starting from the above concepts without creative labor, and all of them fall within the protection scope of the present invention.

Claims

1. A fluid valve, comprising: a valve body having an inlet passage and an outlet passage; A valve core is located in the valve body and can move to control the communication state between the inlet channel and the outlet channel; Actuator, used to drive the valve core to switch between normally closed state and normally open state; It is characterized in that the actuator comprises: An actuator rod is connected to the valve core through the valve stem; The spring applies force to the actuator rod to keep the valve core in a normally closed state; Locking rod, which automatically locks the actuator rod after the actuator rod opens the valve core to ensure that the valve core is in a normally open state; The unlocking rod is used to release the locking rod from the actuating rod, so that the actuating rod returns to its initial position under the action of the spring.

2. The fluid valve according to claim 1, characterized in that: A valve cover is provided on the top of the valve body. The valve stem passes through the valve cover and is connected to the valve core. The valve core can move along the valve cavity inside the valve body.

3. The fluid valve according to claim 2, characterized in that: The inlet channel and the outlet channel are both arranged on the side of the valve body and penetrate the valve cavity, and the inlet channel is higher than the outlet channel.

4. The fluid valve according to claim 3, characterized in that: There are multiple outlet channels, which pass through the bottom of the valve cavity, and there is a single inlet channel which passes through the side of the valve cavity.

5. The fluid valve according to claim 2, characterized in that: A valve shell is arranged on the top of the valve cover, one end of the actuator rod is a hinged end and is hinged to the valve shell, and the other end is an actuator end and extends out of the valve shell, and a spring is arranged close to the actuator end of the actuator rod.

6. The fluid valve according to claim 5, characterized in that: The locking rod is hinged to the valve housing and a torsion spring is arranged at the hinge. The unlocking rod is hinged to the locking rod and can move along the valve housing to drive the locking rod to rotate.

7. The fluid valve according to claim 6, characterized in that: The top of the valve housing is formed as a U-shaped handle, and the unlocking rod extends into the U-shaped cavity formed by the U-shaped handle.

8. The fluid valve according to claim 5, characterized in that: A first spring seat is hingedly connected to the actuator rod near the actuator end, and a second spring seat is correspondingly hingedly connected in the valve housing. Two ends of the spring are respectively connected to the first spring seat and the second spring seat.

9. The fluid valve according to claim 5, characterized in that: The actuator rod is provided with a locking section at the hinged end, and the locking section is provided with a guiding inclined surface and a locking groove. During the upward movement of the actuator end of the actuator rod, the actuator rod drives the locking section to act on the locking rod, and the locking rod is automatically guided into the locking groove under the action of the guiding inclined surface.

10. The fluid valve according to claim 9, characterized in that: The locking rod has a first end, a second end and a third end. The first end forms a locking end. The second end and the third end are respectively hinged to the valve housing and the unlocking rod to form hinged ends. A torsion spring is arranged between the second end and the valve housing.

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