Silicon carbide flashboard type throttling stop valve

Abstract

The utility model discloses a silicon carbide flashboard type throttling stop valve in the technical field of stop valves, which is reasonable in structure, the bottom ends of four groups of limiting columns are mounted on the outer wall of a bottom ring in a rotary connection manner, and limiting rings at the top ends of the limiting columns are provided with screw rods, so that the limiting columns are fixed on the outer wall of the bottom ring after the flow of the flashboard stop valve is controlled to a proper position. The operating rod is reset under the counter-acting force of the spring, so that the limiting column is shifted until the screw rod slides in the positioning groove in the surface of the fixing ring, and the knob on the screw rod is rotated until the knob is tightened, so that the operating rod can be limited, and the operating rod and the valve rod are matched to be in a separated state; on one hand, the situation that the control flow of the silicon carbide flashboard type throttling stop valve is changed due to accidental touch of the control rod is avoided as much as possible, and on the other hand, the situation that the separated control rod is pressed to be easily inserted into the valve rod to be controlled is also avoided as much as possible.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stop valve, concretely is silicon carbide gate stop valve. BACKGROUND

[0002] The silicon carbide gate stop valve is a high-performance valve, which combines the wear-resistant and corrosion-resistant properties of silicon carbide material and the advantages of the gate structure, and is commonly used to control the flow of high-temperature, high-pressure or corrosive medium. The current silicon carbide gate stop valve has mature technology and effects, but there are still some small problems. Since some silicon carbide gate stop valves are manually controlled, and the silicon carbide gate stop valve requires an open state to achieve the desired flow, the lever on the silicon carbide gate stop valve is easily scratched or touched during use, which causes changes in the open state of the silicon carbide gate stop valve, increases the safety risk, and may cause system overload or accidents, thereby reducing the safety of the silicon carbide gate stop valve and affecting the use effect of the silicon carbide gate stop valve.

[0003] Therefore, it is necessary to develop a silicon carbide gate stop valve. INVENTION CONTENTS

[0004] The utility model discloses a silicon carbide gate stop valve to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a silicon carbide gate stop valve, comprising a gate stop valve, a valve seat is installed at the top of the gate stop valve, a lever is slidably connected to the inside top of the valve seat;

[0006] An auxiliary assembly is installed at the top of the valve seat, the auxiliary assembly comprises a bottom ring, and a limiting column is rotatably connected to the outer wall of the bottom ring.

[0007] Preferably, a valve column is installed at the inside center position of the valve seat, and a positioning hole is formed at the top center position of the valve column.

[0008] Preferably, a fixing ring is installed above the outer wall of the lever, and a positioning head is installed at the bottom end of the lever.

[0009] Preferably, a nut is threadedly connected to the lower outer wall of the lever, and the nut is located above the inside of the valve seat.

[0010] Preferably, a spring is provided above the outer wall of the lever, the spring is located between the opposite side of the fixing ring and the nut, and a positioning groove is formed on the surface of the fixing ring.

[0011] The top end of the limiting column is preferably provided with a limiting ring, and a screw rod is arranged at the center of the top end of the limiting ring.

[0012] The outer wall of the screw rod is preferably provided with a knob, and the inside of the knob is threadedly connected with the outer wall of the screw rod.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The bottom end of the four groups of limiting columns is rotatably connected to the outer wall of the bottom ring, and the limiting ring at the top end of the limiting column is provided with a screw rod. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A front view of the utility model is provided.

[0016] Figure 2 A front view of the utility model is provided.

[0017] Figure 3 An enlarged schematic view of a selected part of the structure of the utility model is provided.

[0018] Figure 4 An enlarged view of structure A in the utility model is provided. Figure 3

[0019] Figure 5 A partial structure of the utility model is provided.

[0020] In the figure: 1, gate stop valve; 2, valve seat; 201, valve column; 202, positioning hole; 3, operating rod; 301, fixed ring; 302, positioning head; 303, nut; 304, spring; 305, positioning groove; 4, bottom ring; 401, limiting column; 402, limiting ring; 403, screw rod; 404, knob. DETAILED DESCRIPTION

[0021] ​Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the present utility model.

[0022] The utility model provides following technical scheme: silicon carbide gate board formula throttling stop valve, please refer to Figures 1-4 , including gate stop valve 1, the top of gate stop valve 1 is equipped with valve seat 2, the inside center position of valve seat 2 is equipped with valve post 201, the top center position of valve post 201 is equipped with positioning hole 202, the inside upper of valve seat 2 is slidably connected with operating lever 3, the outer wall upper of operating lever 3 is equipped with fixed ring 301, the bottom of operating lever 3 is equipped with positioning head 302, the outer wall lower of operating lever 3 is threadedly connected with nut 303, and nut 303 is located the inside upper of valve seat 2, the outer wall upper of operating lever 3 is equipped with spring 304, spring 304 is located between the opposite side of fixed ring 301 and nut 303, the surface of fixed ring 301 is equipped with positioning groove 305, operating lever 3 is connected in the inside upper of valve seat 2 in sliding mode, and positioning head 302 on the bottom of operating lever 3 is matched with positioning hole 202 on valve post 201, so that positioning head 302 on operating lever 3 is inserted into positioning hole 202, the rotation of valve post 201 can be controlled, thereby the flow control of valve core in gate stop valve 1 is handled, the outer wall of operating lever 3 is equipped with spring 304 by sleeving, and nut 303 is tightened in the outer wall lower of operating lever 3, according to the effect of spring 304 with elastic reaction force, the limiting and anti-disengagement of operating lever 3 can be handled by installed nut 303, and spring 304 keeps the elastic reset of operating lever 3,

[0023] The top of the valve seat 2 is provided with an auxiliary assembly, which comprises a bottom ring 4, the outer wall of which is rotatably connected with a limiting column 401, the top end of which is provided with a limiting ring 402, the top center of which is provided with a screw rod 403, the outer wall of which is provided above with a knob 404, the inside of which is threadedly connected with the outer wall of the screw rod 403, the bottom end of the four sets of limiting columns 401 is rotatably connected with the outer wall of the bottom ring 4, and the limiting ring 402 on the top end of the limiting column 401 is provided with the screw rod 403, after the flow control of the gate stop valve 1 is controlled to a suitable position, the operating lever 3 is subjected to the restoring force of the spring 304 to generate a reset process, so that it actuates the limiting column 401, and the screw rod 403 slides in the positioning groove 305 on the surface of the fixed ring 301, the knob 404 on the screw rod 403 is rotated until it is tightened, so that the limiting process for the operating lever 3 can be achieved, and the operating lever 3 and the valve column 201 are in a separated state, on the one hand, it can avoid the situation that the operating lever 3 is accidentally touched and changes the flow control of the silicon carbide gate plate throttling stop valve, and on the other hand, it can also avoid the situation that the separated operating lever 3 is pressed and easily inserted into the valve column 201 to generate control.

[0024] Working principle: when using the utility model, the operating lever 3 is butted on the inside of the valve seat 2 in a sliding mode, and the positioning head 302 provided on the bottom end of the operating lever 3 is matched with the positioning hole 202 on the valve post 201, so that the positioning head 302 on the operating lever 3 is inserted into the positioning hole 202, the valve post 201 can be controlled to rotate, thereby the valve core in the gate stop valve 1 is controlled to flow through, the spring 304 is sleeved on the outer wall of the operating lever 3, and the nut 303 is screwed below the outer wall of the operating lever 3, according to the elastic reaction force effect of the spring 304, the installed nut 303 can limit and prevent the operating lever 3 from falling off, and the spring 304 keeps the elastic reset of the operating lever 3, the bottom end of the four sets of limiting columns 401 is rotatably connected to the outer wall of the bottom ring 4, and the limiting ring 402 on the top end of the limiting column 401 is provided with the screw rod 403, according to the flow control of the gate stop valve 1 to the appropriate position, the operating lever 3 is reset by the spring 304 reaction force, so that the limiting column 401 is actuated, and the screw rod 403 is slid in the positioning groove 305 on the surface of the fixed ring 301, the knob 404 on the screw rod 403 is rotated until it is tightened, so that the limiting of the operating lever 3 is achieved, and the operating lever 3 and the valve post 201 are in a separated state, on the one hand, the operating lever 3 is prevented from being accidentally touched to change the flow of the silicon carbide gate plate type throttling stop valve, on the other hand, the separated operating lever 3 is prevented from being pressed and inserted into the valve post 201 to control, thereby reducing the safety risk of accidental control, effectively improving the safety of the silicon carbide gate plate type throttling stop valve, and effectively improving the use effect of the silicon carbide gate plate type throttling stop valve.

[0025] Although the utility model has been described above with reference to the embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the features in the embodiments disclosed by the utility model can be combined in any way, and the combinations are not described in this specification only for the purpose of omitting the length and saving resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A silicon carbide gate throttling stop valve comprising a gate stop valve (1) having a valve seat (2) mounted on the top of the gate stop valve (1), characterized in that: The inside of the valve seat (2) is slidably connected with a control rod (3) above; The top of the valve seat (2) is provided with an auxiliary assembly, which comprises a bottom ring (4), and a limiting column (401) is rotatably connected to the outer wall of the bottom ring (4).

2. The silicon carbide gate throttling globe valve of Claim 1, wherein: The inside of the valve seat (2) is provided with a valve column (201) at the central position, and a positioning hole (202) is formed in the top end of the valve column (201).

3. The silicon carbide gate throttling globe valve of Claim 1, wherein: The outer wall of the control rod (3) is provided with a fixed ring (301) above, and the bottom end of the control rod (3) is provided with a positioning head (302).

4. The silicon carbide gate throttling globe valve of claim 3, wherein: The outer wall of the control rod (3) is provided with a nut (303) below, and the nut (303) is located above the inside of the valve seat (2).

5. The silicon carbide gate throttling globe valve of claim 4, wherein: The outer wall of the control rod (3) is provided with a spring (304) above, and the spring (304) is located between the opposite side of the fixed ring (301) and the nut (303), and the surface of the fixed ring (301) is provided with a positioning groove (305).

6. The silicon carbide gate throttling globe valve of Claim 1, wherein: The top end of the limiting column (401) is provided with a limiting ring (402), and the top end of the limiting ring (402) is provided with a screw rod (403).

7. The silicon carbide gate throttling globe valve of Claim 6, wherein: The outer wall of the screw rod (403) is provided with a knob (404) above, and the inside of the knob (404) is threadedly connected with the outer wall of the screw rod (403).

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