Anti-scouring wear-resistant plunger type stop valve

Abstract

The utility model relates to the technical field of valves, in particular to an anti-scouring abrasion-resistant plunger type stop valve which comprises a valve body, a fluid channel arranged in the valve body, a valve seat arranged in the valve body and a valve cover arranged on the valve body. A valve plate used for being matched with the valve seat is arranged in the sliding channel in an up-down sliding mode, a valve rod is further connected to the valve plate, the valve rod upwards penetrates out of the valve cover, a first rotating thread is formed in the valve rod, and a sleeve is arranged on the valve cover through a quick release device. And a second rotating thread matched with the first rotating thread is formed in the sleeve.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, especially relates to anti-erosion wear -resisting plunger type stop valve. BACKGROUND

[0002] The plunger type stop valve as the commonly used stop valve, the main difference with other stop valves is that the valve plate is cylindrical, and is usually applied to the pipeline system, since the medium enters the valve from the directly below of the valve plate, thus the medium generates an upward thrust to the valve plate, and when the valve stem moves up and down, there is the friction force between the valve stem and the packing, thus it is easy to cause the stress of the screw thread between the valve stem and the valve cover to be too large, after long-term use, the thread between the valve stem and the valve cover is broken, thus damaging the device, and the service life of the device is reduced. SUMMARY

[0003] Therefore, aiming at the above problems, the utility model provides anti-erosion wear -resisting plunger type stop valve.

[0004] To achieve the above object, the utility model technical scheme provides anti-erosion wear -resisting plunger type stop valve, including valve body, the fluid passage of being opened in the valve body, the valve seat of being arranged in the valve body, the valve cover of being arranged on the valve body, the valve body with valve cover is opened with the sliding channel of being linked with the fluid passage, the valve plate for being used for with valve seat cooperation is slidably arranged in the sliding channel, the valve stem is also connected on the valve plate, the valve stem is up and goes out the valve cover, the first rotation screw thread is opened on the valve stem, the sleeve pipe is set with the second rotation screw thread that is matched with the first rotation screw thread through the quick release device on the valve cover.

[0005] Further improvement is that the quick release device includes: the installation groove opened on the valve cover, the limiting table set on the installation groove, the sleeve pipe is inserted on the installation groove, and the encryption positioning device for preventing the sleeve pipe from separating and positioning the sleeve pipe is further arranged between the sleeve pipe and the installation groove.

[0006] Further improvement is that the encryption positioning device includes: the positioning hole opened on the sleeve pipe, the positioning block slidably arranged in the positioning hole, the rotation groove opened on the installation groove and used for clamping the positioning block opposite the positioning hole, and the encryption device is further arranged between the positioning block and the rotation groove.

[0007] Further improvement is that the encryption device includes: the spring set in the positioning hole, one end of the spring is fixedly connected with the bottom of the positioning hole, and the other end is fixedly connected with the positioning block, the positioning block is a magnetic block, at least one clamping groove corresponding to the positioning block is further opened in the rotation groove, the positioning block is located between the rotation groove and the positioning hole when the spring is in a natural state, and the length of the positioning block is longer than the width of the rotation groove.

[0008] Further improvement is that the magnetic block is further provided with a round corner.

[0009] Further improvement is that the valve plate is further provided with a sealing protection layer.

[0010] Further improvement is that the valve seat is provided with a first chamfer, and the valve plate is provided with a second chamfer matched with the first chamfer.

[0011] Further improvement is that the other end of the valve rod is rotatably connected to the valve plate.

[0012] Further improvement is that the valve rod is provided with a first hexagonal block facilitating the user to use a wrench to rotate, and is further provided with a through hole.

[0013] Further improvement is that the valve body is further provided with a connecting flange facilitating connection with a water conveying pipeline.

[0014] The utility model discloses the advantages and beneficial effects are:

[0015] The simple structure is convenient to use, the sleeve is provided with the sleeve through the quick release device, the user is convenient for quick replacement sleeve, realizes the repair of the thread unthreading under the condition of not replacing the valve cover, saves the overall use cost of the valve, improves the service life, and the encryption device is further arranged between the sleeve and the valve cover, can prevent the valve from being mistakenly opened and closed, further improves the use safety and service life of the valve. DETAILED DESCRIPTION

[0016] Fig. 1 It is the front view section view schematic diagram of the utility model anti-erosion wear-resistant plunger type stop valve;

[0017] Fig. 2 It is the enlarged schematic diagram of A part of the utility model anti-erosion wear-resistant plunger type stop valve;

[0018] Fig. 3 It is the top view partial section view schematic diagram of the utility model anti-erosion wear-resistant plunger type stop valve positioning block and engagement slot engagement state;

[0019] In the drawing: 101, valve body;102, fluid passage;103, valve seat;104, valve cover;105, sliding passage;106, valve plate;107, valve rod;108, first rotating thread;109, sleeve;110, second rotating thread;111, installation groove;112, limiting table;113, positioning hole;114, positioning block;115, rotary groove;116, spring;117, engagement slot;118, round corner;119, sealing protection layer;120, first hexagonal block;121, through hole;122, connecting flange;123, packing;124, first chamfer;125, second chamfer;126, second hexagonal block. CONCRETE IMPLEMENTING METHOD

[0020] The specific embodiments of the utility model will be further described in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0021] As Figs. 1-3 shown, the anti-erosion wear-resistant plug type stop valve, including valve body 101, the fluid passage 102 that is opened in valve body 101, the valve seat 103 that is arranged in valve body 101, the valve cover 104 that is arranged on valve body 101, the sliding passage 105 that is opened in valve body 101 with valve cover 104 is communicated with fluid passage 102, the valve plate 106 for being matched with valve seat 103 can be arranged in slidingly in sliding passage 105, the valve rod 107 is also connected on valve plate 106, the valve rod 107 is up and out of valve cover 104, the first rotating thread 108 is opened in valve rod 107, the sleeve pipe 109 is arranged on valve cover 104 by quick release device, the second rotating thread 110 that is matched with first rotating thread 108 is opened in sleeve pipe 109.

[0022] In order to facilitate the installation sleeve pipe 109, the quick release device includes: the installation groove 111 that is opened in valve cover 104, the limiting table 112 that is arranged on installation groove 111, the sleeve pipe 109 is inserted on installation groove 111, the encryption positioning device for preventing sleeve pipe 109 from separating and positioning sleeve pipe 109 is also arranged between sleeve pipe 109 and installation groove 111.

[0023] In order to facilitate the dismounting installation sleeve pipe 109, and the position of sleeve pipe 109 is fixed when using valve, prevents others from being mistaken to open and close when not using, the encryption positioning device includes: the positioning hole 113 that is opened in sleeve pipe 109, the positioning block 114 that can be arranged in slidingly in positioning hole 113, the rotating groove 115 that is opened in installation groove 111 and is used for being engaged with positioning block 114 with positioning hole 113 opposite, the encryption device is also arranged between positioning block 114 and rotating groove 115;The encryption device includes: the spring 116 that is arranged in positioning hole 113, one end of spring 116 is fixedly connected with the bottom of positioning hole 113, and the other end is fixedly connected with positioning block 114, the positioning block 114 is magnetic block, at least one engagement groove 117 corresponding with positioning block 114 is also opened in rotating groove 115, positioning block 114 is located between rotating groove 115 and positioning hole 113 when spring 116 is in natural state, and the length of positioning block 114 is longer than the width of rotating groove 115.

[0024] In order to facilitate the installation sleeve pipe 109, the rounded corner 118 is also opened in magnetic block.

[0025] In order to prevent the valve plate 106 from wearing and to enhance the sealing, a sealing protection layer 119 is arranged on the valve plate 106, which is a rubber layer.

[0026] In order to enhance the sealing, a first chamfer 124 is arranged on the valve seat 103, and a second chamfer 125 is arranged on the valve plate 106, which matches the first chamfer 124.

[0027] In order to reduce the wearing of the valve plate 106 when the valve rod 107 rotates, the other end of the valve rod 107 is rotatably connected to the valve plate 106.

[0028] In order to facilitate the lifting and lowering of the valve plate 106, the lifting and lowering device comprises a threaded hole arranged on the valve cover 104 and communicating with the sliding channel 105, and a lifting thread arranged on the valve rod 107 and matching the threaded hole.

[0029] In order to facilitate the rotation of the valve rod 107 and the disassembly of the sleeve 109, a first hexagonal block 120 is arranged on the valve rod 107, which is convenient for the user to rotate by using a wrench, and a through hole 121 is arranged on the valve rod 107.

[0030] In order to facilitate the installation of the valve, a connecting flange 122 is arranged on the valve body 101, which is convenient for connecting with the water pipeline.

[0031] In order to enhance the sealing, a packing 123 is arranged between the valve body 101 and the valve cover 104, which is in contact with the packing 123 when the valve plate 106 abuts against the valve seat 103 or slides to the sliding channel 105.

[0032] In order to facilitate the installation of the sleeve 109, a second hexagonal block 126 is arranged on the sleeve 109.

[0033] Working principle: when in use, the user first adsorbs the positioning block 114 by the strong magnetic block through magnetic attraction, and at the same time, the valve rod 107 can be rotated by using a wrench or by inserting a rod-shaped object into the through hole 121, at this time, the sleeve 109 is rotated together with the valve rod 107, until the positioning block 114 corresponds to the clamping groove 117, the positioning block 114 is inserted into the clamping groove 117 under the action of the strong magnetic block, and at the same time, it is located between the clamping groove 117, the rotating groove 115 and the positioning hole 113, at this time, the valve plate 106 can be normally lifted and lowered to control the opening and closing of the valve, after the operation is completed, the user removes the strong magnetic block, at this time, the positioning block 114 is reset under the action of the spring 116, and the encryption of the valve is realized again.

[0034] When the second rotating thread 110 on the sleeve 109 is damaged, the user will press the magnetic repulsion strong magnetic block with the positioning block 114 on the valve cover 104, so as to drive the positioning block 114 to push the spring 116 to move into the positioning hole 113, and release the clamping between the positioning block 114 and the rotating groove 115, at this time the user can lift the valve rod 107 and the sleeve 109, then unscrew the damaged sleeve 109, screw a new sleeve 109, then reinsert the sleeve 109 and the valve rod 107, when inserted, the installation groove 111 cooperates with the round corner 118 to top the positioning block 114 into the positioning hole 113, until the positioning block 114 corresponds to the rotating groove 115, the positioning block 114 resets under the action of the spring 116 and inserts into the rotating groove 115, and the fixing of the sleeve 109 is completed.

[0035] The basic principle and main features of the utility model and its advantages are shown and described above, and the skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An erosion-resistant and wear-resistant plunger-type gate valve, comprising a valve body, a fluid passage formed within the valve body, a valve seat disposed within the valve body, and a valve cover disposed on the valve body, wherein the valve body and the valve cover are provided with sliding channels communicating with the fluid passage, and a valve plate for cooperating with the valve seat is slidably disposed within the sliding channels, and a valve stem is further connected to the valve plate, the valve stem extending upward through the valve cover, characterized in that: The valve rod is provided with a first rotating thread, and the valve cover is provided with a sleeve through a quick release device, and the sleeve is provided with a second rotating thread matched with the first rotating thread.

2. The abrasion and washout resistant plug valve of claim 1, wherein: The quick release device comprises a mounting groove provided on the valve cover, and a limiting table provided on the mounting groove, the sleeve is inserted into the mounting groove, and an encryption positioning device is arranged between the sleeve and the mounting groove to prevent the sleeve from being separated and to position the sleeve.

3. The abrasion and washout resistant plug valve of claim 2, wherein: The encryption positioning device comprises a positioning hole provided on the sleeve, a positioning block slidably arranged in the positioning hole, and a rotating groove provided on the mounting groove and opposite to the positioning hole to be engaged with the positioning block, and an encryption device is arranged between the positioning block and the rotating groove.

4. The abrasion and washout resistant plug valve of claim 3, wherein: The encryption device comprises a spring arranged in the positioning hole, one end of the spring is fixedly connected with the bottom of the positioning hole, and the other end is fixedly connected with the positioning block, the positioning block is a magnetic block, at least one engaging groove corresponding to the positioning block is provided in the rotating groove, the positioning block is located between the rotating groove and the positioning hole in the natural state of the spring, and the length of the positioning block is longer than the width of the rotating groove.

5. The abrasion and washout resistant plug valve of claim 4, wherein: A round corner is further provided on the magnetic block.

6. The abrasion and washout resistant plug valve of claim 1, wherein: A sealing protective layer is further provided on the valve plate.

7. The abrasion and washout resistant plug valve of claim 1, wherein: The other end of the valve rod is rotatably connected to the valve plate.

8. The abrasion and washout resistant plug valve of claim 1, wherein: A first chamfer is provided on the valve seat, and a second chamfer matched with the first chamfer is provided on the valve plate.

9. The abrasion and washout resistant plug valve of claim 1, wherein: A first hexagonal block facilitating the user to use a wrench to rotate is provided on the valve rod, and a through hole is further provided on the valve rod.

10. The abrasion and washout resistant plug valve of claim 1, wherein: A connecting flange facilitating the connection with a water conveying pipeline is further provided on the valve body.

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