Linear valve body with stop valve

Abstract

The utility model discloses a linear valve body with a stop valve, which comprises a valve body, a valve seat and a stop valve core, the valve seat is connected to the bottom of the valve body, and the stop valve core is mounted in the valve body; the valve body comprises an air inlet channel, an air outlet channel, a flow channel, a first cavity and a second cavity, the valve body is square, the first cavity and the second cavity are arranged in parallel, the first cavity is used for installing the stop valve element, the air inlet channel is communicated with the first cavity, the air outlet channel is communicated with the second cavity, and the flow channel is communicated with the flow channel. And the first cavity is communicated with the second cavity through the flow channel. According to the linear valve body with the stop valve, the valve body can be provided with a proportional valve and a pressure maintaining valve, the functions of the stop valve and the proportional valve or the pressure maintaining valve are integrated, the structure of the valve body is simplified, a fluid channel is arranged in the valve body, connection nodes between the valve bodies are reduced, the number of installation plugs is reduced, and the cost is reduced. And the control precision and stability are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical equipment technical field relates to a linear valve body with stop valve. BACKGROUND

[0002] The stop valve is responsible for opening or closing the fluid passage, the proportional valve can continuously, proportionally control the flow and pressure of the fluid, and the pressure stabilizing valve can keep the stability of the outlet pressure and is not affected by the inlet pressure and flow. The stop valve is often used with the proportional valve or the pressure stabilizing valve.

[0003] However, the traditional valve combination mode has some problems, such as complex installation, large space occupation, high maintenance cost, etc. In order to solve these problems, a new type of composite valve body is needed, which integrates the functions of the stop valve and the proportional valve or the pressure stabilizing valve. CONTENT OF THE UTILITY MODEL

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A linear valve body with a stop valve, comprising a valve body, a valve seat and a stop valve spool, the valve seat is connected at the bottom of the valve body, the stop valve spool is installed in the valve body;

[0006] The valve body includes an air inlet channel, an air outlet channel, a flow channel, a first cavity and a second cavity, the valve body is square, the first cavity and the second cavity are arranged in parallel, the first cavity is used for installing the stop valve spool, the air inlet channel is communicated with the first cavity, the air outlet channel is communicated with the second cavity, and the flow channel communicates the first cavity and the second cavity.

[0007] As a further scheme of the utility model, the second cavity is used for installing a pressure stabilizing valve spool or a proportional valve spool.

[0008] As a further scheme of the utility model, the flow channel includes a first through hole and a second through hole, the first through hole and the second through hole are arranged in parallel, and the first through hole and the second through hole communicate the first cavity and the second cavity.

[0009] As a further scheme of the utility model, the first cavity includes a first valve body part and a first gas part, the first valve body part is located on the upper side, the first gas part is located on the lower side, the first gas part extends a boss, the boss is provided with a third through hole, the third through hole communicates the first valve body part and the first gas part, the air inlet channel communicates the first valve body part, and one end of the flow channel communicates the first gas part.

[0010] As a further scheme of the utility model, the second cavity includes a second valve body part and a second gas part, the second valve body part is located at the upper side, the second gas part is located at the lower side, the second valve body part is embedded in the second gas part, the air outlet channel is communicated with the second gas part, and the other end of the flow channel is communicated with the second valve body part.

[0011] As a further scheme of the utility model, the first cavity outside is respectively provided with a circular ring boss.

[0012] As a further scheme of the utility model, a recess is arranged at the position corresponding to the second cavity outside the valve seat.

[0013] As a further scheme of the utility model, a pressure measuring nozzle is arranged between the air outlet channel and the valve body.

[0014] As a further scheme of the utility model, the outer periphery of the air inlet channel and the air outlet channel is provided with an external thread.

[0015] The utility model has the advantages of:

[0016] The linear valve body with a stop valve can be provided with a proportional valve or a pressure stabilizing valve, integrates the functions of the stop valve, the proportional valve or the pressure stabilizing valve, simplifies the valve body structure, embeds the fluid channel in the valve body, reduces the connecting nodes between the valve bodies, reduces the number of installed plugs, improves the control precision and stability, and meets the fluid control requirements of high precision, high stability and high efficiency of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure diagram of a linear valve body with a stop valve Figure 1 ;

[0018] Figure 2 It is a structure diagram of a linear valve body with a stop valve Figure 2 ;

[0019] Figure 3 It is a structure diagram of another linear valve body with a stop valve Figure 1 ;

[0020] Figure 4 It is a structure diagram of another linear valve body with a stop valve Figure 2 ;

[0021] Figure 5 It is a front and rear cross-sectional view of a valve body of a linear valve body with a stop valve

[0022] Figure 6 It is a top and bottom cross-sectional view of a valve body of a linear valve body with a stop valve

[0023] Figure 7 A schematic diagram of the structure of a valve seat for a linear valve body with a shut-off valve. Figure 1 ;

[0024] Figure 8 A schematic diagram of the structure of a valve seat for a linear valve body with a shut-off valve. Figure 2 ;

[0025] As shown in the figure:

[0026] 1-Valve body, 2-Valve seat, 3-Stop valve core, 4-Pressure regulator valve core, 5-Proportional valve core, 6-Pressure test nozzle;

[0027] 11-Inlet channel, 12-Outlet channel, 13-Flow channel, 131-First through hole, 132-Second through hole, 141-First valve body, 142-First gas part, 143-Boss, 144-Third through hole, 145-Annular boss, 151-Second valve body, 152-Second gas part, 16-External thread;

[0028] 21-Groove. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In the embodiments of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] As shown in Figures 1-4 A linear valve body with a stop valve, comprising a valve body 1, a valve seat 2 and a stop valve spool 3, the valve seat 2 is connected at the bottom of the valve body 1, and the stop valve spool 3 is installed in the valve body 1;The valve body 1 includes an inlet passage 11, an outlet passage 12, a flow passage 13, a first cavity and a second cavity, the valve body 1 is square, the first cavity and the second cavity are arranged in parallel, the first cavity is used for mounting the stop valve spool 3, the inlet passage 11 is communicated with the first cavity, the outlet passage 12 is communicated with the second cavity, and the flow passage 13 communicates the first cavity and the second cavity.

[0034] A linear valve body with a stop valve, the valve body 1 can be installed with a proportional valve and a pressure stabilizing valve, the functions of the stop valve and the proportional valve or the pressure stabilizing valve are integrated, the structure of the valve body 1 is simplified, the fluid passage is built-in in the valve body 1, the connecting nodes between the valve bodies 1 are reduced, the number of installed plugs is reduced, the control precision and stability are improved, and the fluid control demand of equipment on high precision, high stability and high efficiency is met.

[0035] Specifically, as shown in Figure 1 And 2 The second cavity is used for mounting the pressure stabilizing valve spool 4, and a composite valve of a stop valve and a pressure stabilizing valve is formed. The stop valve can be used to cut off or regulate the fluid entering the system, and the pressure stabilizing valve can automatically regulate the pressure according to the change of the system pressure, so as to ensure the stability of the system pressure. When the stop valve and the pressure stabilizing valve are connected and used, they can jointly ensure the stable operation of the equipment, greatly improve the reliability and stability of the equipment, and prevent the equipment from being damaged or safety accidents caused by pressure fluctuation.

[0036] Specifically, as shown in Figure 3 And 4 The second cavity is used for mounting the proportional valve spool 5, and a composite valve of a stop valve and a proportional valve is formed. The stop valve can be used to cut off the flow of fluid, so as to ensure that there is no fluid leakage during the regulation process. The proportional valve can accurately adjust the opening of the valve according to the change of the control signal, so as to realize the accurate control of the flow, pressure or temperature. When the stop valve and the proportional valve are connected and used, they can jointly realize the accurate control of the fluid, improve the control precision and stability of the equipment.

[0037] In this embodiment, as Figure 5 and 6 As shown, Figure 5 It is a cross-section along the front and rear center lines of valve body 1, viewed from front to back. Figure 6 The valve body 1 is cut along its upper and lower center lines, viewed from top to bottom. The flow channel 13 includes a first through hole 131 and a second through hole 132, which are arranged parallel to each other, connecting the first cavity and the second cavity. Specifically, the first cavity and the second cavity are connected through the flow channel 13 to form a pilot flame channel. This pilot flame channel is used to maintain stable combustion of the pilot flame, ensuring its continuous combustion. The flow channel 13, with its first through hole 131 and second through hole 132, ensures the wall thickness of the valve body 1 while reducing resistance, ensuring smooth fluid flow.

[0038] In this embodiment, as Figure 5 and 6 As shown, the first cavity includes a first valve body 141 and a first gas section 142. The first valve body 141 is located on the upper side, and the first gas section 142 is located on the lower side. The first gas section 142 extends with a boss 143. The boss 143 is provided with a third through hole 144, which connects the first valve body 141 and the first gas section 142. An air inlet channel 11 connects to the first valve body 141, and one end of a flow channel 13 connects to the first gas section 142. The second cavity includes a second valve body 15 and a second gas section 152. The second valve body 15 is located on the upper side, and the second gas section 152 is located on the lower side. The second valve body 15 is embedded in the second gas section 152. An air outlet channel 12 connects to the second gas section 152, and the other end of the flow channel 13 connects to the second valve body 15. Specifically, in general, the valve body is an external channel. Due to the casting process of the valve body, core pulling is required. The hole left after core pulling needs to be sealed with a plug to ensure the valve body 1 is airtight. Each additional plug increases the probability of leakage. However, the valve body 1 in this embodiment adopts an internal channel, embedding the fluid channel within the valve body 1, thus reducing the probability of leakage. The fluid flow sequence is as follows: inlet channel 11, first valve body part 141, first gas part 142, flow channel 13, second valve body part 15, second gas part 152, and outlet channel 12. The flow channel 13 follows a "Z" shaped path.

[0039] In this embodiment, as Figures 1-4 As shown, the outer side of the first cavity is provided with annular bosses 145. The annular bosses 145 are positioned corresponding to the first valve body 141 and the first gas section 142, respectively, facilitating drilling and positioning to add new external flow channels. For example, adding another shut-off valve can control the gas flow in the small channel; if the fluid is combustion gas, it can enable small-flame combustion or the activation of a permanent flame.

[0040] In this embodiment, asFigure 7 and 8 as shown, Figure 7 is the valve seat 2 viewed from top to bottom, Figure 8 is the valve seat 2 viewed from bottom to top, and a recess 21 is arranged on the outer side of the valve seat 2 corresponding to the second cavity. The recess 21 is concave from the outer side of the valve seat 2 to the valve body 1, and the recess 21 is conical, which is convenient for drilling positioning and adds a new external flow channel.

[0041] In the embodiment, as shown in Figures 1-4 , a pressure measuring nozzle 6 is arranged between the gas outlet channel 12 and the valve body 1. If the fluid is gas, the pressure measuring nozzle 6 is a device installed on the gas pipeline or related equipment, which is used to monitor and control the gas pressure in real time, accurately measure the pressure value in the gas pipeline, and ensure that the gas supply is within a safe pressure range. When the gas pressure exceeds the set value, the pressure measuring nozzle 6 can trigger related safety mechanisms, such as automatically closing the valve, to prevent gas leakage and potential safety risks.

[0042] In the embodiment, as shown in Figures 1-4 , the outer periphery of the gas inlet channel 11 and the gas outlet channel 12 is provided with external threads 16. It is convenient to connect with fluid pipelines or other fluid control components, and improves the convenience and reliability of installation.

[0043] It should also be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements recited, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by an "including a" statement does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0044] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A linear valve body having a shut-off valve, characterized by The valve body, the valve seat and the stop valve core, the valve seat is connected at the bottom of the valve body, the stop valve core is installed in the valve body; The valve body includes an air inlet channel, an air outlet channel, a flow channel, a first cavity and a second cavity, the valve body is square, the first cavity and the second cavity are arranged in parallel, the first cavity is used for installing the stop valve core, the air inlet channel is communicated with the first cavity, the air outlet channel is communicated with the second cavity, and the flow channel communicates the first cavity and the second cavity; the second cavity is used for installing a pressure stabilizing valve core or a proportional valve core.

2. The linear valve body with a stop valve according to claim 1, wherein The flow channel includes a first through hole and a second through hole, the first through hole and the second through hole are arranged in parallel, and the first through hole and the second through hole communicate the first cavity and the second cavity.

3. The linear valve body with a stop valve according to claim 2, wherein The first cavity includes a first valve body part and a first gas part, the first valve body part is located at the upper side, the first gas part is located at the lower side, the first gas part extends a boss, the boss is provided with a third through hole, the third through hole communicates the first valve body part and the first gas part, the air inlet channel communicates the first valve body part, and one end of the flow channel communicates the first gas part.

4. The linear valve body with a stop valve according to claim 3, wherein The second cavity includes a second valve body part and a second gas part, the second valve body part is located at the upper side, the second gas part is located at the lower side, the second valve body part is embedded in the second gas part, the air outlet channel communicates the second gas part, and the other end of the flow channel communicates the second valve body part.

5. The linear valve body with a stop valve according to claim 1, wherein The first cavity is provided with a circular ring boss outside.

6. The linear valve body with a stop valve according to claim 1, wherein A groove is arranged at the position corresponding to the second cavity outside the valve seat.

7. The linear valve body with a stop valve according to claim 1, wherein A pressure measuring nozzle is arranged between the air outlet channel and the valve body.

8. The linear valve body with a stop valve according to claim 1, wherein The air inlet channel and the air outlet channel are provided with external threads.

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