Impact-resistant and wear-resistant turning plate type three-way material distributing valve

Abstract

The invention relates to the technical field of material distribution valves, and particularly discloses an anti-impact and anti-abrasion turning plate type three-way material distribution valve which comprises a valve body, a material inlet, a first material outlet and a second material outlet. An auxiliary turning plate for providing a buffer stroke when the switching turning plate is impacted by materials is rotationally mounted in the valve body, and a locking unit for locking the auxiliary turning plate is arranged in a cavity of the valve body; the turnover plate can be arranged in a hidden mode, so that when the first discharging port conducts discharging, materials do not impact the turnover plate, the phenomenon that the two sides of a traditional turnover plate are impacted is avoided, and impact resistance and abrasion resistance of the turnover plate are achieved; and the service life of the turning plate is prolonged, and meanwhile, the impact and abrasion of the materials to the turning plate are reduced to a certain extent.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of material distribution valves, and particularly relates to an anti-impact and anti-abrasion flap type three-way material distribution valve. BACKGROUND

[0002] In contemporary industrial manufacturing, three-way material distribution valves are widely used in various material conveying systems, and play a key role in the accurate distribution and efficient conveying of various materials. However, due to the impact and friction of materials, three-way material distribution valves are prone to wear and damage during use, which not only affects production efficiency, but also increases maintenance costs.

[0003] Traditional flap type three-way material distribution valves not only have the problem of flap damage, but also have the problem of material damage caused by collision with the flap during material discharge, which affects the quality of the material. In addition, the existing material distribution valves on the market that use the flap to store material and achieve the "material hitting material" type, although they prolong the service life of the flap inside the valve, but in actual operation, the collision between materials is more likely to damage the surface of the materials, affecting the quality of the materials. In view of this, an anti-impact and anti-abrasion flap type three-way material distribution valve is proposed. SUMMARY

[0004] The purpose of the present application is to provide an anti-impact and anti-abrasion flap type three-way material distribution valve to solve the problem of flap damage caused by impact and the problem of material appearance and quality affected by collision during material discharge in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] An anti-impact and anti-abrasion flap type three-way material distribution valve, comprising a valve body, a material inlet, a first material outlet and a second material outlet, a switching flap for switching the material outlet is rotatably installed on the inner side wall surface of the valve body cavity near the second material outlet, a first limiting block for limiting the switching flap is slidably installed in the cavity of the valve body, a second limiting block for limiting the switching flap is fixedly installed in the cavity of the valve body, an auxiliary flap for providing a buffer stroke when the switching flap is impacted by material is rotatably installed in the valve body, and a locking unit for locking the auxiliary flap is provided in the cavity of the valve body.

[0007] Preferably, the switching flap comprises a rotating base and a switching shaft fixedly installed at one end of the rotating base, the switching shaft is rotatably installed in the cavity of the valve body, a limiting triangular head is fixedly installed at the end of the rotating base away from the switching shaft, the shape of the limiting triangular head is adapted to the shape of the first limiting block and the second limiting block, and the limiting triangular head is used to limit the switching flap in cooperation with the first limiting block or the second limiting block.

[0008] Preferably, a plurality of first buffer springs are fixedly installed above the rotating base, and a slidable receiving plate is elastically provided above the rotating base through the first buffer springs. The receiving plate is used to provide a buffer stroke in conjunction with the first buffer springs when the material falls onto the receiving plate, so as to reduce the impact of the material on the switching flap.

[0009] Preferably, a switching handle is fixedly installed on one side of the switching shaft. The switching handle is rotatably installed on one side of the valve body. When the switching handle is rotated, it drives the switching flap to rotate to complete the switching of the discharge port.

[0010] Preferably, the top of one end of the first limiting block located within the cavity of the valve body is inclined, which is used to limit the first limiting block to move vertically downward when the switching flap rotates to the first limiting block. A rack is fixedly installed at one end of the first limiting block located outside the valve body, and a return spring is fixedly installed at the top of the one end of the first limiting block located outside the valve body. One end of the return spring is fixedly connected to the first limiting block, and the other end of the return spring is fixedly connected to the valve body. The return spring is used to assist the first limiting block in resetting.

[0011] Preferably, the auxiliary flap includes a lower support plate and an upper buffer plate elastically connected to the lower support plate via a second buffer spring. A gear column is fixedly installed at one end of the lower support plate near the first limiting block. The gear column is rotatably mounted on the valve body and meshes with the rack. The gear column is used to rotate when the first limiting block drives the rack to move, thereby driving the auxiliary flap to rotate.

[0012] Preferably, a locking strip is fixedly installed at the end of the lower support plate away from the gear column. The locking strip is used to cooperate with the locking unit to lock the lower support plate in order to maintain the stability of the auxiliary flap.

[0013] Preferably, the locking unit includes a locking rod slidably disposed on the valve body and a corresponding locking groove formed on the valve body. The locking rod is used to clamp the locking bar to the top of the locking groove when it rises so that the auxiliary flap remains stable. An electric telescopic rod is attached to the bottom of the locking rod. The electric telescopic rod is detachably installed on the valve body and is used to control the rising and falling of the locking rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The switching flap provided in this invention can be hidden to the feeding position of the second discharge port when the three-way valve is switched to the first discharge port. At this time, the material does not impact the flap when it falls, avoiding the phenomenon of impact on both sides of the traditional flap and avoiding double-sided wear, thus achieving impact and wear resistance of the flap.

[0016] 2. With the first buffer spring, the flap of the present invention prevents the material from colliding violently with the flap when it falls, thereby reducing the impact of the material on the flap, improving the quality of product conveying, and extending the service life of the device.

[0017] 3. The present invention provides further protection for the rotating base at the bottom of the switching flap by setting an auxiliary flap. The setting of the second buffer spring ensures that when the upper buffer plate and the rotating base are in close contact, the switching flap can be more adequately buffered after the material falls to the receiving plate. At the same time, the stability of the entire auxiliary flap is enhanced by the cooperation of the locking unit and the locking bar. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional view of the three-dimensional structure of the present invention;

[0020] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a cross-sectional view of the auxiliary flap of the present invention;

[0022] Figure 5 This is a cross-sectional view of the switching flap of the present invention;

[0023] Figure 6 This is a cross-sectional view of the first discharge port of the present invention in the discharge state.

[0024] Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle;

[0025] Figure 8 This is a cross-sectional view of the discharge state of the second discharge port of the present invention;

[0026] Figure 9 For the present invention Figure 8 Enlarged view of point C in the middle;

[0027] Figure 10 This is a diagram showing the locking unit of the present invention locking the locking bar.

[0028] Figure 11 For the present invention Figure 10 Enlarged view at point D;

[0029] Figure 12 For the present invention Figure 10 Enlarged view at point E in the middle;

[0030] Figure 13 This is a diagram showing the connection relationship between the rack and gear post of the present invention.

[0031] In the diagram: 1. Valve body, 11. Inlet, 12. First outlet, 13. Second outlet;

[0032] 2. Switch flip plate, 21. Rotate base, 211. Switch rotating shaft, 212. Limiting triangle head, 22. Support plate, 23. First buffer spring, 24. Switch handle, 25. First limiting block, 251. Rack, 252. Reset spring, 26. Second limiting block;

[0033] 3. Auxiliary flap; 31. Upper buffer plate; 32. Lower support plate; 33. Second buffer spring; 34. Gear column; 35. Locking bar;

[0034] 4. Locking unit; 41. Locking rod; 42. Locking groove; 43. Electric telescopic rod. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Reference Figures 1-13 As shown, an impact-resistant and wear-resistant flap-type three-way feed valve includes a valve body 1, an inlet 11, a first outlet 12, and a second outlet 13. The first outlet 12 is aligned with the inlet 11. When it is necessary to discharge from the first outlet 12, the second outlet 13 is closed. A switching flap 2 for switching the outlet is rotatably mounted on the inner wall of the valve body 1 near the second outlet 13. A sliding flap 2 for adjusting the switching flap 2 is slidably mounted within the valve body 1. The valve body 1 has a first limiting block 25 for limiting the switching flap 2, and a second limiting block 26 for limiting the switching flap 2 is fixedly installed in the cavity of the valve body 1. The first limiting block 25 is located on the opposite side of the valve body 1 where the second discharge port 13 is opened, and the second limiting block 26 is located at the top of the inlet of the second discharge port 13. An auxiliary flap 3 is rotatably installed in the valve body 1 to provide a buffer stroke when the switching flap 2 is impacted by material. A locking unit 4 for locking the auxiliary flap 3 is provided in the cavity of the valve body 1.

[0037] In addition, the switching flap 2 includes a rotating base 21 and a switching shaft 211 fixedly installed at one end of the rotating base 21. The switching shaft 211 is rotatably installed in the cavity of the valve body 1. The switching shaft 211 is located at the bifurcation of the first discharge port 12 and the second discharge port 13. A limiting triangular head 212 is fixedly installed at the end of the rotating base 21 away from the switching shaft 211. The shape of the limiting triangular head 212 is adapted to the shape of the first limiting block 25 and the second limiting block 26. The limiting triangular head 212 is used to limit the switching flap 2 in conjunction with the first limiting block 25 or the second limiting block 26. When the limiting triangular head 212 rotates counterclockwise, the side that first contacts the first limiting block 25 is set as an inclined surface to adapt to the inclined surface set by the first limiting block 25.

[0038] Secondly, multiple first buffer springs 23 are fixedly installed above the rotating base 21. A slidable receiving plate 22 is elastically set above the rotating base 21 via the first buffer springs 23. The receiving plate 22 is used to provide buffer stroke in conjunction with the first buffer springs 23 when the material falls onto the receiving plate 22, so as to reduce the impact of the material on the switching flap 2. The width of the receiving plate 22 is the same as the width of the rotating base 21, and its length is slightly shorter than that of the rotating base 21. A switching handle 24 is fixedly installed on one side of the switching shaft 211. The switching handle 24 is set through the valve body 1. When the switching handle 24 is rotated, it drives the switching flap 2 to rotate to complete the switching of the discharge port. That is to say, the switching handle 24 is rotatably installed on the valve body 1 and fixedly connected to the switching shaft 211. When the switching handle 24 is rotated, it will drive the switching shaft 211 to rotate.

[0039] Specifically, the first limiting block 25 penetrates the side wall of the valve body 1, and the top of one end of the first limiting block 25 located in the cavity of the valve body 1 is set at an angle. It is used to limit the triangular head 212 to rotate with the switching flap 2 to the first limiting block 25, thereby driving the first limiting block 25 to move vertically downward. A rack 251 is fixedly installed on one end of the first limiting block 25 located outside the valve body 1, and a return spring 252 is fixedly installed on the top of one end of the first limiting block 25 located outside the valve body 1. One end of the return spring 252 is fixedly connected to the first limiting block 25, and the other end of the return spring 252 is fixedly connected to the valve body 1. The return spring 252 is used to assist the first limiting block 25 in resetting. Multiple return springs 252 should be provided to facilitate the resetting of the first limiting block 25.

[0040] It should be noted that when the material distribution valve switches from discharging from the second discharge port 13 to discharging from the first discharge port 12, the locking unit 4 unlocks first. At this time, the locking strip 35 of the auxiliary flap 3 is no longer locked. When the switching flap 2 rotates clockwise, the first limit block 25 is no longer under pressure. At this time, the first limit block 25 is reset under the action of the return spring 252. The auxiliary flap 3 is also reset under the meshing action of the rack 251 and the gear column 34. Moreover, after the auxiliary flap 3 is unlocked, it is easier for the return spring 252 to be reset under the action of gravity.

[0041] Furthermore, the auxiliary flap 3 includes a lower support plate 32 and an upper buffer plate 31. Multiple second buffer springs 33 are disposed between the lower support plate 32 and the upper buffer plate 31. One end of each second buffer spring 33 is fixedly connected to the upper support plate, and the other end is fixedly connected to the lower support plate 32. A gear post 34 is fixedly installed on the lower support plate 32 near the first limiting block 25. The gear post 34 is rotatably mounted on the side wall of the valve body 1 and meshes with a rack 251. The gear post 34 rotates when the first limiting block 25 moves the rack 251, thereby rotating the auxiliary flap 3. A locking strip 35 is fixedly installed on the lower support plate 32 away from the gear post 34. The locking strip 35 cooperates with the locking unit 4 to lock the lower support plate 32, maintaining the stability of the auxiliary flap 3.

[0042] In addition, the locking unit 4 includes a locking rod 41 slidably disposed on the valve body 1 and a corresponding locking groove 42 opened on the valve body 1. The locking rod 41 is used to clamp the locking bar 35 to the top of the locking groove 42 when it rises so that the auxiliary flap 3 remains stable. An electric telescopic rod 43 is attached to the bottom of the locking rod 41. The electric telescopic rod 43 is detachably installed on the valve body 1 and is used to control the rising and falling of the locking rod 41.

[0043] It is important to note that damping should be provided at the rotational connection between the switching shaft 211 and the valve body 1 to prevent the switching flap 2 from tipping down when it is in a vertical position. Additionally, the switching handle 24 can be manually controlled or connected to an external motor or hydraulic cylinder to further reduce labor costs. Furthermore, the timing of using the electric telescopic rod 43 is crucial. When discharging from the second outlet 13, the electric telescopic rod 43 can only be extended after the switching flap 2 has been flipped, i.e., after the locking bar 35 has rotated with the auxiliary flap 3 to the locking groove 42. If it is necessary to switch to the first outlet 12 at this time, the electric telescopic rod 43 should be retracted first to lower the locking rod 41 and unlock the locking bar 35 before rotating the switching handle 24.

[0044] Working principle: When in use, material is fed into the inlet 11. When it is necessary to discharge from the first outlet 12, the switching flap 2 should be adjusted to a vertical position using the switching handle 24. At this time, the switching flap 2 is limited by the second limiting block 26, preventing material impact when it falls. The material directly enters from the inlet 11 and exits from the first outlet 12. When it is necessary to discharge from the second outlet 13, the switching handle 24 should be rotated counterclockwise to lower the switching flap 2. During this process, the limiting triangle head 212 on the switching flap 2 gradually presses against the first limiting block 25, causing the first limiting block 25 to move downwards vertically. As the first limiting block 25 moves downwards, the rack 251 moves downwards, driving the gear column 34 to rotate counterclockwise. At this time, the auxiliary flap... 3 is flipped out until the top of the upper buffer plate 31 of the auxiliary flip plate 3 is in close contact with the top of the rotating base 21. At this time, the locking bar 35 moves to the top of the locking groove 42 as the auxiliary flip plate 3 rotates. At this time, the electric telescopic rod 43 is extended to move the locking rod 41 upward until the locking bar 35 is locked. When the material is put in from the feed port 11, it is guided to the second discharge port 13 through the receiving plate 22. When the material falls onto the receiving plate 22, the first buffer spring 23 provides a buffer stroke, which reduces the impact of the material on the switching flip plate 2. In addition, the auxiliary flip plate 3 provides an extra elastic stroke, making the switching flip plate 2 more stable. When the device is in use, the material only impacts and rubs one side of the receiving plate 22, which greatly reduces the impact and wear received by the flip plate.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An impact-resistant and wear-resistant flap-type three-way feed valve, comprising a valve body (1), an inlet (11), a first outlet (12), and a second outlet (13), characterized in that: A switching flap (2) for switching the discharge port is rotatably installed on the inner wall of the valve body (1) near the second discharge port (13). A first limiting block (25) for limiting the switching flap (2) is slidably installed in the valve body (1). A second limiting block (26) for limiting the switching flap (2) is fixedly installed in the valve body (1). An auxiliary flap (3) for providing a buffer stroke when the switching flap (2) is impacted by material is rotatably installed in the valve body (1). A locking unit (4) for locking the auxiliary flap (3) is provided in the valve body (1).

2. The impact-resistant and wear-resistant flap-type three-way feed valve according to claim 1, characterized in that: The switching flap (2) includes a rotating base (21) and a switching shaft (211) fixedly installed at one end of the rotating base (21). The switching shaft (211) is rotatably installed in the cavity of the valve body (1). A limiting triangle head (212) is fixedly installed at the end of the rotating base (21) away from the switching shaft (211). The shape of the limiting triangle head (212) is adapted to the shape of the first limiting block (25) and the second limiting block (26). The limiting triangle head (212) is used to cooperate with the first limiting block (25) or the second limiting block (26) to limit the switching flap (2).

3. The impact-resistant and wear-resistant flap-type three-way feed valve according to claim 2, characterized in that: A number of first buffer springs (23) are fixedly installed above the rotating base (21). A sliding support plate (22) is elastically set above the rotating base (21) through the first buffer springs (23). The support plate (22) is used to provide a buffer stroke in conjunction with the first buffer springs (23) when the material falls to the support plate (22) to reduce the impact of the material on the switching flip plate (2).

4. The impact-resistant and wear-resistant flap-type three-way feed valve according to claim 3, characterized in that: A switching handle (24) is fixedly installed on one side of the switching shaft (211). The switching handle (24) is rotatably installed on one side of the valve body (1). The switching handle (24) is used to drive the switching flap (2) to rotate when rotating to complete the switching of the discharge port.

5. The impact-resistant and wear-resistant flap-type three-way feed valve according to claim 1, characterized in that: The first limiting block (25) is located at one end of the cavity of the valve body (1) with its top edge set at an angle. It is used to limit the first limiting block (25) to move vertically downward when the triangular head (212) rotates with the switching flap (2) to the first limiting block (25). A rack (251) is fixedly installed at one end of the first limiting block (25) located outside the valve body (1). A return spring (252) is fixedly installed at the top of one end of the first limiting block (25) located outside the valve body (1). One end of the return spring (252) is fixedly connected to the first limiting block (25), and the other end of the return spring (252) is fixedly connected to the valve body (1). The return spring (252) is used to assist the first limiting block (25) in resetting.

6. The impact-resistant and wear-resistant flap-type three-way feed valve according to claim 1, characterized in that: The auxiliary flap (3) includes a lower support plate (32) and an upper buffer plate (31) elastically connected to the lower support plate (32) via a second buffer spring (33). A gear column (34) is fixedly installed at one end of the lower support plate (32) near the first limiting block (25). The gear column (34) is rotatably mounted on the valve body (1). The gear column (34) is meshed with the rack (251). The gear column (34) is used to rotate when the first limiting block (25) drives the rack (251) to move, thereby driving the auxiliary flap (3) to rotate.

7. The impact-resistant and wear-resistant flap-type three-way feed valve according to claim 6, characterized in that: A locking strip (35) is fixedly installed at one end of the lower support plate (32) away from the gear column (34). The locking strip (35) is used to cooperate with the locking unit (4) to lock the lower support plate (32) in order to maintain the stability of the auxiliary flap (3).

8. The impact-resistant and wear-resistant flap-type three-way feed valve according to claim 7, characterized in that: The locking unit (4) includes a locking rod (41) slidably disposed on the valve body (1) and a corresponding locking groove (42) opened on the valve body (1). The locking rod (41) is used to clamp the locking bar (35) to the top of the locking groove (42) when it rises so that the auxiliary flap (3) remains stable. An electric telescopic rod (43) is attached to the bottom of the locking rod (41). The electric telescopic rod (43) is detachably installed on the valve body (1). The electric telescopic rod (43) is used to control the rising and falling of the locking rod (41).

Images