Novel high-pressure slurry valve

Abstract

The utility model provides a novel high pressure slurry valve which comprises an upper valve body, a lower valve body spliced with the upper valve body and a support arranged at the upper end of the upper valve body, a valve seat is fixedly installed between the upper valve body and the lower valve body in a clamping mode, a valve clack matched with the valve seat is arranged on the upper valve body and corresponds to the valve seat, the valve clack is fixedly connected with a valve rod, and the valve rod is fixedly connected with the lower valve body. The valve rod is installed on the upper valve body in a sliding mode. The valve seat is clamped and fixed between the upper valve body and the lower valve body, the valve rod is slidably installed on the upper valve body in a lifting mode, the lower end of the valve rod is fixedly connected with the valve clack so as to achieve precise matching of the valve clack and the valve seat, the upper end of the valve rod is in threaded connection with the screw, the upper end of the screw is driven by the actuator to rotate, and the upper end of the valve rod is slidably installed in the guide groove through the limiting assembly. Therefore, the screw drives the valve rod to lift and adjust, rotation friction force generated between the valve clack and the valve rod and between the valve clack and the valve seat in a traditional product is avoided, abrasion between the valve clack and the valve seat is reduced, and matching precision is improved. The limiting assembly clamps the valve rod through splicing of the first clamping sleeve and the second clamping sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry valves, in particular to a novel high-pressure slurry valve. Background Art

[0002] Slurry valve is a special type of valve, which is widely used in various industrial processes, mainly used to control the flow of fluid media. Slurry valve generally drives the valve disc to rise and fall by rotating the valve stem, so that the valve disc cooperates with the valve seat to complete the switch operation. The bottom of the existing valve stem is generally connected to the valve disc rotationally to avoid the valve disc and the valve stem rotating synchronously, and to avoid large friction between the valve disc and the valve seat due to rotation. However, when the valve stem is pressed against the valve seat through the valve disc, it will also drive the valve disc and the valve seat to rotate and cause friction damage, and the friction between the valve stem and the valve disc will be large, which will increase the gap between the valve stem and the valve disc, and the valve disc will shake, affecting the precision of the cooperation with the valve seat, thereby causing incomplete sealing. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a new type of high-pressure slurry valve to solve the problems raised in the above background technology.

[0004] The technical problem solved by the utility model is achieved by adopting the following technical scheme: a new type of high-pressure slurry valve, comprising an upper valve body and a lower valve body spliced ​​with the upper valve body, and a bracket arranged at the upper end of the upper valve body, a valve seat is fixedly installed between the upper valve body and the lower valve body, a valve flap is provided on the upper valve body corresponding to the valve seat and matched with it, the valve flap is fixedly connected to the valve stem, the valve stem is slidably installed on the upper valve body, a screw hole is opened on the upper end of the valve stem, a screw is inserted into the screw hole and threadedly connected, the upper end of the screw is rotatably installed on the upper end of the bracket, and is transmission-connected to the actuator at the outer end of the bracket; a limit assembly for limiting the rotation of the valve stem is provided on the bracket.

[0005] As a further solution of the utility model:

[0006] The bracket includes a symmetrically arranged support plate, the inner side of which is vertically provided with a guide groove, the limiting assembly includes a first jacket and a second jacket spliced ​​with the first jacket, the first jacket includes a first arc plate and a first side plate integrally arranged on both sides of the first arc plate, a slider is fixedly installed on the outer end of the first side plate and is slidably installed in the guide groove through the slider, the second jacket includes a second arc plate and a second side plate integrally arranged on both sides of the second arc plate, the first arc plate and the second arc plate are semi-annular structures, and the second side plate is fixedly connected to the first side plate by bolts, so that the first arc plate and the second arc plate clamp fix the valve stem.

[0007] As a further solution of the utility model:

[0008] A first arc groove is provided on the side of the upper end of the valve stem facing the second arc plate, and an arc block is embedded and installed in the first arc groove. The second arc plate is provided with a second arc groove corresponding to the arc block, which is sleeved and fixed on the outer end of the arc block, so that the arc block is clamped between the second arc plate and the valve stem, which prevents the valve stem from rotating and preventing the valve stem from detaching from the second arc plate, thereby improving the stability of the structural connection.

[0009] As a further solution of the utility model:

[0010] An axial hole is provided at the upper end of the upper valve body corresponding to the valve stem, and the axial hole is a stepped hole structure. A bushing is provided at the lower end of the axial hole corresponding to the valve stem. The valve stem is slidably installed in the bushing, and the lower end of the bushing is against the step corresponding to the upper valve body. The upper end of the bushing is filled with sealing filler, and the sealing filler is againsted by a pressing sleeve. The outer end of the pressing sleeve is fixedly connected to the outer end of the upper valve body through a pressing plate to seal and guide the valve stem, thereby improving the accuracy of the valve stem sliding.

[0011] As a further solution of the utility model:

[0012] The connecting plate at the lower end of the valve stem is fixedly connected to the disc seat at the upper end of the valve disc by screws to prevent the valve disc and the valve stem from rotating and causing the gap to increase. The valve seat is clamped and installed between the flange plates of the upper valve body and the lower valve body. The valve seat corresponds to the valve disc and is provided with a sealing groove that cooperates with it to improve the accuracy of the cooperation between the valve disc and the valve seat.

[0013] As a further solution of the utility model:

[0014] The actuator includes a transmission box, a motor arranged on one side of the transmission box, and a handle installed on the other side of the transmission box. A transmission shaft is provided in the transmission box, and the transmission shaft is connected to the upper end of the screw through a coupling. The transmission shaft is connected to the motor and the handle respectively through a gear set to realize manual and automatic control modes.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the valve seat is clamped and fixed between the upper valve body and the lower valve body, the valve stem is lifted and slidably installed on the upper valve body, the lower end of the valve stem is fixedly connected to the valve disc to achieve precise matching between the valve disc and the valve seat, the upper end of the valve stem is threadedly connected to the screw, the upper end of the screw is driven to rotate by the actuator, and the upper end of the valve stem is slidably installed in the guide groove through the limit assembly, so that the screw drives the valve stem to be lifted and adjusted, avoiding the rotational friction between the valve disc, the valve stem and the valve seat in traditional products, reducing the wear between the valve disc and the valve seat, and improving the matching accuracy. The limit assembly clamps the valve stem by splicing the first jacket and the second jacket to prevent the valve stem from rotating, and an arc block is clamped and installed between the second arc plate and the valve stem to prevent the valve stem from rotating, and can prevent the valve stem from being separated from the second arc plate, thereby improving the stability of the structural connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 The partial cross-sectional structure of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 3 The local cross-sectional structure diagram of the limit assembly of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 4 for Figure 2 The enlarged structural diagram at A in the middle;

[0020] Markings in the figure: 1. upper valve body; 2. lower valve body; 3. bracket; 4. actuator; 11. valve seat; 12. valve disc; 13. valve stem; 14. screw; 15. bushing; 16. sealing packing; 17. pressing sleeve; 18. pressing plate; 19. connecting plate; 31. support plate; 32. guide groove; 33. first jacket; 34. second jacket; 35. bolt; 36. arc block; 331. first arc plate; 332. first side plate; 333. slider; 341. second arc plate; 342. second side plate. DETAILED DESCRIPTION

[0021] In order to make the technical means for realizing the utility model, creative features, objectives and effects easy to understand, the utility model is further explained below with reference to specific illustrations.

[0022] like Figures 1 to 4 As shown,

[0023] The present embodiment provides a new type of high-pressure slurry valve, including an upper valve body 1 and a lower valve body 2 spliced ​​with the upper valve body 1, and a bracket 3 arranged at the upper end of the upper valve body 1, a valve seat 11 is fixedly installed between the upper valve body 1 and the lower valve body 2, and a valve flap 12 is provided on the upper valve body 1 corresponding to the valve seat 11, and the valve flap 12 is fixedly connected to the valve stem 13, and the valve stem 13 is slidably installed on the upper valve body 1, and a screw hole is opened at the upper end of the valve stem 13, and a screw rod 14 is inserted into the screw hole and threadedly connected, and the upper end of the screw rod 14 is rotatably installed on the upper end of the bracket 3, and is drivingly connected to the actuator 4 at the outer end of the bracket 3; a limit assembly for limiting the rotation of the valve stem 13 is provided on the bracket 3.

[0024] In this embodiment, the bracket 3 includes a symmetrically arranged support plate 31, and a guide groove 32 is vertically opened on the inner side of the support plate 31. The limiting assembly includes a first jacket 33 and a second jacket 34 spliced ​​with the first jacket 33. The first jacket 33 includes a first arc plate 331 and a first side plate 332 integrally arranged on both sides of the first arc plate 331. A slider 333 is fixedly installed on the outer end of the first side plate 332 and is slidably installed in the guide groove 32 through the slider 333. The second jacket 34 includes a second arc plate 341 and a second side plate 342 integrally arranged on both sides of the second arc plate 341. The first arc plate 331 and the second arc plate 341 are semi-annular structures. The second side plate 342 is fixedly connected to the first side plate 332 by bolts 35, so that the first arc plate 331 and the second arc plate 341 clamp and fix the valve stem 13.

[0025] A first arc groove is provided on the upper end of the valve stem 13 toward the side of the second arc plate 341, and an arc block 36 is embedded in the first arc groove. The second arc plate 341 is provided with a second arc groove corresponding to the arc block 36, so that the arc block 36 is sleeved and fixed on the outer end of the arc block 36, so that the arc block 36 is clamped between the second arc plate 341 and the valve stem 13, thereby preventing the valve stem 13 from rotating and preventing the valve stem 13 from detaching from the second arc plate 341, thereby improving the stability of the structural connection.

[0026] In this embodiment, an axial hole is opened at the upper end of the upper valve body 1 corresponding to the valve stem 13, and the axial hole is a stepped hole structure. A sleeve 15 is provided at the lower end of the axial hole corresponding to the valve stem 13. The valve stem 13 is slidably installed in the sleeve 15, and the lower end of the sleeve 15 is against the step corresponding to the upper valve body 1. The upper end of the sleeve 15 is filled with a sealing packing 16, and the sealing packing 16 is against the sealing packing 16 by a pressing sleeve 17. The outer end of the pressing sleeve 17 is fixedly connected to the outer end of the upper valve body 1 through a pressing plate 18 to seal and guide the valve stem 13, thereby improving the sliding accuracy of the valve stem 13.

[0027] The connecting plate 19 at the lower end of the valve stem 13 is fixedly connected to the disc seat at the upper end of the valve disc 12 by screws to prevent the valve disc 12 and the valve stem 13 from rotating and causing the gap to increase. The valve seat 11 is clamped and installed between the flange plates of the upper valve body 1 and the lower valve body 2. The valve seat 11 is provided with a sealing groove corresponding to the valve disc 12 to improve the accuracy of the cooperation between the valve disc 12 and the valve seat 11.

[0028] In this embodiment, the actuator 4 includes a transmission box and a motor arranged on one side of the transmission box, and a handle installed on the other side of the transmission box. A transmission shaft is arranged in the transmission box, and the transmission shaft is connected to the upper end of the screw 14 through a coupling. The transmission shaft is connected to the motor and the handle through a gear set, respectively, to achieve manual and automatic control. There are many manual and automatic integrated devices for driving the shaft to rotate. The actuator 4 is a conventional device in this field. The above scheme provides a possible structure of an actuator.

[0029] The working principle of the utility model is as follows: the valve seat 11 is clamped and fixed between the upper valve body 1 and the lower valve body 2, the valve stem 13 is lifted and slidably installed on the upper valve body 1, the lower end of the valve stem 13 is fixedly connected to the valve disc 12 to achieve precise matching between the valve disc 12 and the valve seat 11, the upper end of the valve stem 13 is threadedly connected to the screw 14, the upper end of the screw 14 is driven to rotate by the actuator 4, and the upper end of the valve stem 13 is slidably installed in the guide groove 32 through a limit assembly, so that the screw 14 drives the valve stem 13 to rise and fall and adjust, avoiding the rotational friction between the valve disc 12, the valve stem 13 and the valve seat 11 in traditional products, reducing the wear between the valve disc 12 and the valve seat 11, and improving the matching accuracy. The limiting assembly clamps the valve stem 13 by splicing the first jacket 33 and the second jacket 34 to prevent the valve stem 13 from rotating. An arc block 36 is installed between the second arc plate 341 and the valve stem 13 to prevent the valve stem 13 from rotating and to prevent the valve stem 13 from separating from the second arc plate 341, thereby improving the stability of the structural connection.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will also have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. It should be noted that in this article, if there are first and second relationship terms such as only used to distinguish one entity or operation from another entity or operation, it does not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or equipment. Without more constraints, an element defined by the phrase "comprising a..." does not exclude the existence of other identical elements in the process, method, article or apparatus comprising the element.

Claims

1. A new type of high-pressure slurry valve, comprising an upper valve body and a lower valve body spliced ​​with the upper valve body, and a bracket arranged at the upper end of the upper valve body, a valve seat is fixedly installed between the upper valve body and the lower valve body, and a valve disc is arranged on the upper valve body corresponding to the valve seat, and is characterized in that: The valve disc is fixedly connected to the valve stem, and the valve stem is slidably installed on the upper valve body. A screw hole is opened on the upper end of the valve stem, and a screw is inserted into the screw hole for threaded connection. The upper end of the screw is rotatably installed on the upper end of the bracket and is transmission-connected to the actuator at the outer end of the bracket; a limit assembly for limiting the rotation of the valve stem is provided on the bracket.

2. The new high-pressure slurry valve according to claim 1 is characterized in that: The bracket includes a symmetrically arranged support plate, the inner side of which is vertically provided with a guide groove, the limiting assembly includes a first jacket and a second jacket spliced ​​with the first jacket, the first jacket includes a first arc plate and a first side plate integrally arranged on both sides of the first arc plate, a slider is fixedly installed on the outer end of the first side plate and is slidably installed in the guide groove through the slider, the second jacket includes a second arc plate and a second side plate integrally arranged on both sides of the second arc plate, the first arc plate and the second arc plate are semi-annular structures, and the second side plate is fixedly connected to the first side plate by bolts, so that the first arc plate and the second arc plate clamp fix the valve stem.

3. The new high-pressure slurry valve according to claim 2 is characterized in that: A first arc groove is provided on the upper end of the valve stem toward the side of the second arc plate, and an arc block is embedded and installed in the first arc groove. The second arc plate corresponds to the arc block and is provided with a second arc groove, which is sleeved and fixed on the outer end of the arc block so that the arc block is clamped between the second arc plate and the valve stem.

4. The new high-pressure slurry valve according to claim 1 is characterized in that: An axial hole is provided at the upper end of the upper valve body corresponding to the valve stem, and the axial hole is a stepped hole structure. A bushing is provided at the lower end of the axial hole corresponding to the valve stem. The valve stem is slidably installed in the bushing, and the lower end of the bushing is against the step corresponding to the upper valve body. The upper end of the bushing is filled with sealing filler, and the sealing filler is againsted by a pressing sleeve. The outer end of the pressing sleeve is fixedly connected to the outer end of the upper valve body through a pressing plate to seal and guide the valve stem.

5. The new high-pressure slurry valve according to claim 4 is characterized in that: The connecting plate at the lower end of the valve stem is fixedly connected to the disc seat at the upper end of the valve disc by screws to prevent the valve disc and the valve stem from rotating and causing the gap to increase. The valve seat is clamped and installed between the flange plates of the upper valve body and the lower valve body. The valve seat corresponds to the valve disc and is provided with a sealing groove that cooperates with it to improve the accuracy of the cooperation between the valve disc and the valve seat.

6. The new high-pressure slurry valve according to claim 1 is characterized in that: The actuator includes a transmission box, a motor arranged on one side of the transmission box, and a rotary handle installed on the other side of the transmission box. A transmission shaft is arranged in the transmission box, and the transmission shaft is connected to the upper end of the screw through a coupling. The transmission shaft is connected to the motor and the rotary handle through a gear set.

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