Three-way valve for particle materials

Abstract

The three-way valve comprises a valve body, a driving device and a valve plate, the valve body comprises a main material pipe, a material distributing pipe, a side plate and a bent plate, the main material pipe comprises a first pipe body and first pipe opening portions located at the upper end and the lower end of the first pipe body respectively, and the material distributing pipe comprises a second pipe body and a second pipe opening portion located at the lower end of the second pipe body. The first pipe body and the second pipe body are both in a semi-cylinder shape with plane side openings, the first pipe opening portion and the second pipe opening portion are both in a cylinder shape, the bottom face of the first pipe opening portion located on the upper portion is a first inclined face inclining upwards, the top face of the second pipe body is a second inclined face matched with the first inclined face, and the second inclined face of the second pipe body is fixedly connected with the first inclined face of the first pipe opening portion. The opening side of the first pipe body is adjacent to the opening side of the second pipe body; the two bent plates seal the opening sides of the lower portions of the first pipe body and the second pipe body respectively, and the side plates seal openings formed among the first pipe body, the second pipe body and the bent plates. The utility model has the advantages of simple structure and low manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a three-way valve for granular materials. Background Technology

[0002] Three-way diverter valves are devices used in material conveying systems to control the rapid reversal of material flow. They are widely used in industries such as building materials, metallurgy, mining, light industry, and grain for conveying solid particles and powders. A typical three-way diverter valve includes a valve body, a valve plate, and a drive mechanism. Currently, most three-way diverter valves on the market use cast valve bodies, which are formed by first manufacturing a valve body mold and then injecting molten metal into the mold. This manufacturing method suffers from problems such as long production cycles, difficulty in process adjustments, the need for new molds for design changes, rough product surface quality requiring subsequent processing, and relatively complicated manufacturing processes with high costs. Therefore, there is a need for a three-way valve for conveying granular materials that has a simple structure and low manufacturing cost. Utility Model Content

[0003] To address the problems in the background art, this utility model proposes a three-way valve for granular materials, including a valve body, a drive device, and a valve plate. The valve body includes a main material pipe, a distribution pipe, two side plates, and two bending plates. The main material pipe and the distribution pipe have the same diameter. The main material pipe includes a first pipe body and a first pipe opening located at the upper and lower ends of the first pipe body. The distribution pipe includes a second pipe body and a second pipe opening located at the lower end of the second pipe body. Both the first and second pipe bodies are semi-cylindrical with open planar sides. Both the first and second pipe openings are cylindrical. The bottom surface of the upper first pipe opening is an upwardly inclined first slope. The top surface of the second pipe body is a second inclined surface that matches the first inclined surface. The second inclined surface of the second pipe body is fixedly connected to the first inclined surface of the first pipe opening. The open side of the first pipe body and the open side of the second pipe body are adjacent to each other.

[0004] The two bending plates are fixedly connected to the lower side of the first tube and the second tube respectively, and the two bending plates close the opening side of the lower part of the first tube and the second tube respectively. The periphery of the side plate is fixedly connected to the two bending plates and the upper side of the first tube and the second tube respectively, and the side plate closes the opening formed between the first tube, the second tube and the bending plates.

[0005] Preferably, a flange is provided at the end of the first pipe opening away from the main material pipe and at the end of the second pipe opening away from the distribution pipe.

[0006] Preferably, the bending plate includes a first flat plate portion, a bending portion, an intermediate flat plate portion, a bending portion, and a first flat plate portion distributed sequentially from one end of the bending plate to the other end. The first flat plate portion is a right-angled triangle, the intermediate flat plate portion is an isosceles triangle, and the bending portion when not bent is an isosceles triangle with an arc-shaped base. The base angles of two adjacent bending portions are connected.

[0007] After a bending plate is bent, the bottom edges of the two bending portions are fixedly connected to the top edge of the first pipe opening located at the bottom of the main material pipe, and the right-angled edge of the first flat plate portion away from the bending portion is fixedly connected to the side edge of the first pipe opening side.

[0008] After the other bending plate is bent, the bottom edges of the two bending portions are fixedly connected to the top edge of the second pipe opening portion, and the right-angled edge of the first flat plate portion away from the bending portion is fixedly connected to the side edge of the second pipe opening side.

[0009] Preferably, the side plate is quadrilateral, the two sides of the upper part of the side plate are of equal length, and the two sides of the upper part of the side plate are fixed to the side of the opening side of the first tube body and the second tube body, respectively. The two sides of the lower part of the side plate are of equal length, and the two sides of the lower part of the side plate are fixed to the top of the two first flat plates adjacent to the two bent plates, respectively.

[0010] Preferably, PTFE packing is filled between the top ends of the intermediate flat portion of the two bent plates.

[0011] Preferably, a fixing plate is fixed between the two intermediate plate portions. The fixing plate is located below the PTFE packing. Multiple positioning bolts are threaded onto the fixing plate along its length. The head of the positioning bolt is located below the fixing plate, and the other end of the positioning bolt abuts against the PTFE packing.

[0012] Preferably, the valve plate is located inside the valve body. The valve plate is a plate with one end being semi-circular and the other end being square. The square end of the valve plate is connected to a rotating shaft, and the two ends of the rotating shaft are respectively rotatably connected to the side plate.

[0013] Preferably, one end of the rotating shaft extends outside the valve body, the driving device includes a cylinder and a connecting plate, the cylinder is connected to the valve body through a fixed seat, the extension and retraction direction of the cylinder telescopic rod is consistent with the radial direction of the main material pipe, the cylinder telescopic rod is hinged to one end of the connecting plate, and the other end of the connecting plate is connected to the end of the rotating shaft located outside the valve body.

[0014] The beneficial effects of this utility model are as follows:

[0015] The valve body of this utility model is assembled from side plates, bending plates, main material pipes, and distribution pipes, and is manufactured using sheet metal and welding processes. Compared to valve bodies manufactured using casting processes, this utility model eliminates the need for separately designed molds for valve body production, ensures quality, has a simple structure, and low manufacturing costs. Furthermore, the valve body ports of this utility model are cylindrical, resulting in greater compatibility with tubular material conveying pipelines. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the main material pipe and the distribution pipe of this utility model;

[0019] Figure 4 This is a schematic diagram of the side plate structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the bent plate of this utility model when it is not bent;

[0021] Figure 6 This is a schematic diagram of the structure of the bent plate of this utility model after bending.

[0022] Numbered in the diagram: 1. Main pipe; 101. First pipe body; 102. First pipe opening; 2. Distribution pipe; 201. Second pipe body; 202. Second pipe opening; 3. Side plate; 4. Bending plate; 41. First flat plate; 42. Bending section; 43. Intermediate flat plate; 5. Flange; 6. Cylinder; 7. Connecting plate; 8. Fixing seat; 9. Valve plate; 10. Rotating shaft; 11. Fixing plate; 12. Positioning bolt; 13. PTFE packing. Detailed Implementation

[0023] To make this utility model clearer and more understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the given embodiments are only one of the implementation methods and do not represent all embodiments.

[0024] In this article, terms such as "inner," "outer," "upper," and "lower" are established based on the positional relationships shown in the attached drawings. Depending on the attached drawings, the corresponding positional relationships may also change. Therefore, they should not be interpreted as an absolute limitation on the scope of protection.

[0025] Combined with appendix Figure 1 - Appendix Figure 6A three-way valve for granular materials includes a valve body, a drive device, and a valve plate 9. The valve body includes a main material pipe 1, a distribution pipe 2, two side plates 3, and two bending plates 4. The main material pipe 1 and the distribution pipe 2 have the same diameter. The main material pipe 1 includes a first pipe body 101 and a first pipe opening 102 located at the upper and lower ends of the first pipe body 101, respectively. The distribution pipe 2 includes a second pipe body 201 and a second pipe opening 202 located at the lower end of the second pipe body 201. The first pipe body 101 and the second pipe body 201 are both semi-cylindrical with open sides. The first pipe opening 102 and the second pipe opening 202 are both cylindrical. The bottom surface of the upper first pipe opening 102 is an upwardly inclined first slope. The top surface of the second pipe body 201 is a second slope that matches the first slope. The second slope of the second pipe body 201 is fixedly connected to the first slope of the first pipe opening 102. The open side of the first pipe body 101 and the open side of the second pipe body 201 are adjacent to each other.

[0026] The two bending plates 4 are fixedly connected to the lower side of the first tube body 101 and the second tube body 201 respectively. The two bending plates 4 respectively close the opening side of the lower part of the first tube body 101 and the second tube body 201. The periphery of the side plate 3 is fixedly connected to the two bending plates 4 and the upper side of the first tube body 101 and the second tube body 201 respectively. The side plate 3 closes the opening formed between the first tube body 101, the second tube body 201 and the bending plates 4.

[0027] After the main material pipe 1 and the distribution pipe 2 are connected, there is an angle between the axis of the main material pipe 1 and the axis of the distribution pipe 2. The end where the main material pipe 1 and the distribution pipe 2 are connected is the intersection of their axes, and the valve body is "in" shaped. An approximately triangular opening is formed between the side edges of the opening sides of the main material pipe 1 and the distribution pipe 2. The side plate 3 and the bending plate 4 close the opening, and the two bending plates 4 are respectively connected to the lower part of the first pipe body 101 and the second pipe body 201, forming two material inlets of the valve body with the two pipe bodies respectively.

[0028] Specifically, the bending plate 4 includes a first flat plate portion 41, a bending portion 42, an intermediate flat plate portion 43, and a bending portion 42 distributed sequentially from one end of the bending plate 4 to the other end. The first flat plate portion 41 is a right-angled triangle, the intermediate flat plate portion 43 is an isosceles triangle, and the bending portion 42 when not bent is an isosceles triangle with an arc-shaped base. The base angles of two adjacent bending portions 42 are connected.

[0029] After a bending plate 4 is bent, the bottom edges of the two bending portions 42 are fixedly connected to the top edge of the first pipe opening portion 102 located at the bottom of the main material pipe 1, and the right-angled edge of the first flat plate portion 41 away from the bending portion 42 is fixedly connected to the side edge of the opening side of the first pipe body 101.

[0030] After another bending plate 4 is bent, the bottom edges of the two bending portions 42 are fixedly connected to the top edge of the second pipe opening portion 202, and the right-angled edge of the first flat plate portion 41 away from the bending portion 42 is fixedly connected to the side edge of the opening side of the second pipe body 201.

[0031] The side plate 3 is quadrilateral in shape. The two sides of the upper part of the side plate 3 are of equal length and are fixed to the side of the opening side of the first tube body 101 and the second tube body 201, respectively. The two sides of the lower part of the side plate 3 are of equal length and are fixed to the top of the two first flat plate parts 41 adjacent to the two bent plates 4, respectively.

[0032] More specifically, the side plate 3, the bending plate 4, the main material pipe 1, and the distribution pipe 2 are connected by welding, and the welding can be performed from the outside of the valve body. The inner surfaces of the connection between adjacent components are aligned, for example, the inner surfaces of the connection between the side plate 3 and the first pipe body 101 are aligned.

[0033] Specifically, PTFE packing 13 is filled between the top of the middle plate portion 43 of the two bent plates 4, and the PTFE packing 13 is used to fill the gap between the two middle plates to ensure the sealing of the valve body.

[0034] More specifically, a fixing plate 11 is fixed between the two intermediate plate portions 43. The fixing plate 11 is located below the PTFE packing 13. A plurality of positioning bolts 12 are threaded along the length of the fixing plate 11. The head of the positioning bolt 12 is located below the fixing plate 11, and the other end of the positioning bolt 12 abuts against the PTFE packing 13. By tightening the positioning bolts 12, the PTFE packing 13 is tightened to prevent it from falling off.

[0035] Specifically, flanges 5 are provided at the end of the first pipe opening 102 away from the main material pipe 1 and at the end of the second pipe opening 202 away from the distribution pipe 2, so that the valve body can be connected to the conveying pipe through the flanges 5.

[0036] Specifically, the valve plate 9 is located inside the valve body. The valve plate 9 is a plate with one end being semi-circular and the other end being square. The square end of the valve plate 9 is connected to a rotating shaft 10, and the two ends of the rotating shaft 10 are respectively rotatably connected to the side plate 3.

[0037] More specifically, the shaft 10 has a slot, the square end of the valve plate 9 is inserted into the slot, and the shaft 10 and the valve plate 9 have bolt holes with corresponding positions. Bolts are threaded into the bolt holes and the shaft 10 and the valve plate 9 are fixed by the bolts.

[0038] Specifically, one end of the rotating shaft 10 extends outside the valve body. The driving device includes a cylinder 6 and a connecting plate 7. The cylinder 6 is connected to the valve body via a fixed seat 8. The extension and retraction direction of the cylinder 6's telescopic rod is radially aligned with the main material pipe 1. The telescopic rod of the cylinder 6 is hinged to one end of the connecting plate 7, and the other end of the connecting plate 7 is connected to the end of the rotating shaft 10 located outside the valve body. The extension and retraction of the cylinder 6's telescopic rod causes the connecting plate 7 to swing, which in turn causes the rotating shaft 10 to rotate. This, in turn, causes the valve plate 9 to rotate, thus closing the material pipe. More specifically, the cylinder 6 can be an SC32-100-S cylinder.

[0039] Although embodiments of the present invention have been shown and described, those skilled in the art will be able to make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-way valve for granular material, comprising a valve body, a drive device and a valve plate (9), characterized in that: The valve body includes a main material pipe (1), a distribution pipe (2), two side plates (3), and two bending plates (4). The main material pipe (1) and the distribution pipe (2) have the same diameter. The main material pipe (1) includes a first pipe body (101) and a first pipe opening (102) located at the upper and lower ends of the first pipe body (101). The distribution pipe (2) includes a second pipe body (201) and a second pipe opening (202) located at the lower end of the second pipe body (201). The first pipe body (101) and the second pipe body (202) 01) Both are semi-cylindrical with open sides. The first pipe opening (102) and the second pipe opening (202) are both cylindrical. The bottom surface of the first pipe opening (102) located above is an upwardly inclined first slope. The top surface of the second pipe body (201) is a second slope that matches the first slope. The second slope of the second pipe body (201) is fixedly connected to the first slope of the first pipe opening (102). The opening side of the first pipe body (101) and the opening side of the second pipe body (201) are adjacent. The two bending plates (4) are fixedly connected to the lower side of the first tube (101) and the second tube (201) respectively. The two bending plates (4) respectively close the opening side of the lower part of the first tube (101) and the second tube (201). The periphery of the side plate (3) is fixedly connected to the two bending plates (4) and the upper side of the first tube (101) and the second tube (201) respectively. The side plate (3) closes the opening formed between the first tube (101), the second tube (201) and the bending plates (4).

2. A three-way valve for granular materials according to claim 1, characterized in that: Flanges (5) are provided at the end of the first pipe opening (102) away from the main material pipe (1) and at the end of the second pipe opening (202) away from the distribution pipe (2).

3. The three-way valve for granular materials according to claim 1, characterized in that: The bending plate (4) includes a first flat plate (41), a bending plate (42), an intermediate flat plate (43), a bending plate (42), and a first flat plate (41) distributed sequentially from one end of the bending plate (4) to the other end. The first flat plate (41) is a right triangle, the intermediate flat plate (43) is an isosceles triangle, and the bending plate (42) when not bent is an isosceles triangle with an arc-shaped base. The base angles of two adjacent bending plates (42) are connected. After a bending plate (4) is bent, the bottom edges of the two bending portions (42) are fixedly connected to the top edge of the first pipe opening portion (102) located at the bottom of the main material pipe (1), and the right-angled side of the first flat plate portion (41) away from the bending portion (42) is fixedly connected to the side edge of the opening side of the first pipe body (101). After another bending plate (4) is bent, the bottom edges of the two bending portions (42) are fixedly connected to the top edge of the second pipe opening portion (202), and the right-angled edge of the first flat plate portion (41) away from the bending portion (42) is fixedly connected to the side edge of the opening side of the second pipe body (201).

4. A three-way valve for granular materials according to claim 3, characterized in that: The side plate (3) is quadrilateral. The two sides of the upper part of the side plate (3) are of equal length, and the two sides of the upper part of the side plate (3) are fixed to the side of the opening side of the first tube body (101) and the second tube body (201), respectively. The two sides of the lower part of the side plate (3) are of equal length, and the two sides of the lower part of the side plate (3) are fixed to the top of the two first flat plate parts (41) adjacent to the two bent plates (4), respectively.

5. A three-way valve for granular materials according to claim 4, characterized in that: The top of the middle flat plate portion (43) of the two bent plates (4) is filled with PTFE packing (13).

6. A three-way valve for granular materials according to claim 5, characterized in that: A fixing plate (11) is fixed between the two intermediate plate sections (43). The fixing plate (11) is located below the PTFE packing (13). Multiple positioning bolts (12) are threaded along the length direction on the fixing plate (11). The head of the positioning bolt (12) is located below the fixing plate (11), and the other end of the positioning bolt (12) abuts against the PTFE packing (13).

7. The three-way valve for granular materials according to claim 1, characterized in that: The valve plate (9) is located inside the valve body. The valve plate (9) is a plate with one end being semi-circular and the other end being square. The square end of the valve plate (9) is connected to a rotating shaft (10). The two ends of the rotating shaft (10) are rotatably connected to the side plate (3).

8. A three-way valve for granular materials according to claim 7, characterized in that: One end of the rotating shaft (10) extends to the valve body. The driving device includes a cylinder (6) and a connecting plate (7). The cylinder (6) is connected to the valve body through a fixed seat (8). The extension and retraction direction of the cylinder (6) telescopic rod is consistent with the radial direction of the main material pipe (1). The cylinder (6) telescopic rod is hinged to one end of the connecting plate (7), and the other end of the connecting plate (7) is connected to the end of the rotating shaft (10) located outside the valve body.

Images