Double-pull-plate-valve structure of stock bin

Abstract

The utility model belongs to the technical field of stock bin double-pull-plate valves, and provides a stock bin double-pull-plate valve structure which comprises a storage barrel, a pull plate flange is arranged below the storage barrel, a first sliding groove and a second sliding groove are formed in the upper end and the lower end of the pull plate flange respectively, an upper pull plate is connected into the first sliding groove in a sliding mode, and a lower pull plate is connected into the second sliding groove in a sliding mode. Most particle materials can be blocked after the upper pulling plate is closed before the lower pulling plate is closed, then the lower pulling plate is closed, the lower pulling plate can be closed more easily, and even if the material blocking phenomenon occurs and the upper pulling plate cannot be closed thoroughly, the defect that the upper pulling plate cannot be closed thoroughly can be further overcome by closing the lower pulling plate; the phenomenon that particle materials run off from the discharging port due to the fact that the upper pulling plate cannot be closed thoroughly is avoided, the discharging port can be closed thoroughly through the double-pulling-plate valve structure, waste caused by the particle materials is avoided, and the problem that the discharging port cannot be closed tightly due to the fact that an existing double-pulling-plate valve structure of the stock bin is prone to material clamping is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of silo double-pull plate valves and provides a silo double-pull plate valve structure. Background Art

[0002] The granular materials produced by the assembly line need to be stored in silos so that they can be easily transferred to the next step for subsequent processing. The silos mainly use a valve body structure composed of a pull plate to achieve the effect of opening and closing the silo. When necessary, the silo can be opened by pulling out the pull plate to discharge the granular materials. When there is no need to discharge the granular materials, the pull plate can be pushed in to close the silo.

[0003] The single-layer pull-plate valve is affected by the thickness of the pull plate during the closing process. There are cross sections around the pull plate. When the pull plate is pushed and pulled, the granular material will be swept away. The granular material accumulates around the pull plate and causes resistance to the moving pull plate. The granular material will get stuck on the pull plate, causing a material jam. The pull plate cannot be completely pushed back into the chute, resulting in the pull plate being unable to tightly close the discharge port, causing the discharge port to miss granular materials and causing waste of granular materials. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and solve the problem that the existing silo double-pull plate valve structure is easy to get stuck and causes the feed outlet to be unable to be tightly closed.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a silo double pull plate valve structure, including a storage barrel, a pull plate flange is arranged below the storage barrel, and a slide groove 1 and a slide groove 2 are respectively opened at the upper and lower ends of the pull plate flange, an upper pull plate is slidably connected inside the slide groove 1, and a lower pull plate is slidably connected inside the slide groove 2;

[0006] A through hole three is opened on the head side of the pull plate flange, which passes through the slide groove one and the slide groove two respectively. A through hole two is opened on the tail side of the upper pull plate, and a through hole four is opened on the tail side of the lower pull plate. The through holes two, three and four are located on the same vertical line.

[0007] Specifically, a material discharge hole seat is installed at the lower end of the storage barrel and at the upper end of the pull plate flange, the interior of the material discharge hole seat is communicated with the interior of the storage barrel, an upper cover plate slidably connected to the upper end of the upper pull plate is installed between the lower end of the material discharge hole seat and the upper end of the pull plate flange, the lower end of the lower pull plate is slidably connected to a lower cover plate installed at the lower end of the pull plate flange, and a material discharge port is opened at the lower end of the lower cover plate.

[0008] Specifically, the upper cover plate head side is provided with through hole one which is aligned with the feed hole seat and through hole three respectively, and the lower cover plate head side is provided with through hole five which is aligned with through hole three and the feed port respectively, and through hole one and through hole five are located on the same vertical line.

[0009] Specifically, the depth of the first slide groove is the same as the thickness of the upper pull plate, and the depth of the second slide groove is the same as the thickness of the lower pull plate.

[0010] Specifically, the upper pull plate head end and the lower pull plate head end extend out of the front end of the pull plate flange, and the upper pull plate head end and the lower pull plate head end are L-shaped.

[0011] Specifically, the first slide groove and the second slide groove are arranged in a cross shape, and the upper pull plate and the lower pull plate are arranged in a cross shape.

[0012] Specifically, the upper pull-up plate has a convex portion 1 on both the head and tail walls of its outer cross section, the slide groove 1 has a concave portion 1 on both the head and tail walls that matches the adjacent convex portion 1, the lower pull-down plate has a convex portion 2 on both the head and tail walls of its outer cross section, the slide groove 2 has a concave portion 2 on both the head and tail walls that matches the adjacent convex portion 2.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0014] The pull plate flange provides a horizontal reference surface for the upper pull plate and the lower pull plate to be installed. The slide groove one and the slide groove two form a accommodating space for the upper pull plate and the lower pull plate respectively. By arranging a discharge hole seat at the lower end of the storage barrel to facilitate the installation of the upper cover plate, the upper cover plate plays a role of protecting the upper pull plate arranged inside the slide groove one, and the lower cover plate plays a role of protecting the lower pull plate arranged inside the slide groove two, so that the upper cover plate, the upper pull plate, the pull plate flange, the lower pull plate, the lower cover plate and other structures form a complete double-layer pull plate group, and the upper pull plate and the lower pull plate are pulled outward in turn, and the through hole two and the through hole four are aligned with the through hole three in turn and penetrated, so that the discharge hole seat, through hole one, through hole two, through hole three, through hole four and the discharge port are aligned and penetrated on the same vertical line, and the granular material can be taken from the inside of the storage barrel along the discharge hole seat, through hole one, through hole two, through hole three, Through hole four is discharged downward from the discharge port. When it is necessary to stop discharging granular material, the upper pull plate and the lower pull plate are pushed inward in turn, so that the upper pull plate and the lower pull plate respectively stagger and block the through hole three in turn. The through hole three is in a closed state, and the path of the discharge hole seat, through hole one, through hole two, through hole three, through hole four, and the discharge port is closed. Before the lower pull plate is closed, closing the upper pull plate can also block most of the granular material, and then closing the lower pull plate, the lower pull plate can be closed more easily. Even if the material is stuck and the upper pull plate cannot be completely closed, the defect that the upper pull plate cannot be completely closed can be further compensated by closing the lower pull plate, thereby avoiding the phenomenon that the granular material is lost from the discharge port due to the upper pull plate being stuck and unable to be completely closed. This double pull plate valve structure can completely close the discharge port and avoid waste of granular material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is the overall structure assembly effect diagram of the utility model;

[0016] Figure 2 This is a disassembly effect diagram of the overall structure of the utility model;

[0017] Figure 3 This is a disassembled effect diagram of the external structure of the pull plate flange of the utility model;

[0018] Figure 4 This is a top view of the assembly effect of the upper pull-up plate of the utility model;

[0019] Figure 5 For this utility model Figure 4 A magnified view of the local structure A;

[0020] Figure 6 This is a bottom view of the assembly effect of the pull-down plate of the utility model;

[0021] Figure 7 For this utility model Figure 6 Enlarged view of local structure B.

[0022] In the figure: 1, material storage barrel; 2, material discharge hole seat; 3, upper cover plate; 4, upper pull plate; 5, pull plate flange; 6, slide slot 1; 7, slide slot 2; 8, lower pull plate; 9, lower cover plate; 10, material discharge port; 11, through hole 1; 12, through hole 2; 13, through hole 3; 14, through hole 4; 15, through hole 5, 16, convex part 1, 17-concave part 1, 18-convex part 2, 19-concave part 2. DETAILED DESCRIPTION

[0023] See also Figure 1-7 The utility model provides a technical solution: a silo double pull plate valve structure, including a storage barrel 1, a pull plate flange 5 is arranged below the storage barrel 1, a slide groove 6 and a slide groove 7 are respectively opened at the upper and lower ends of the pull plate flange 5, an upper pull plate 4 is slidably connected inside the slide groove 1 6, and a lower pull plate 8 is slidably connected inside the slide groove 2 7, and a through hole 3 13 is opened on the head side of the pull plate flange 5, which passes through the slide groove 1 6 and the slide groove 2 7 respectively, a through hole 2 12 is opened on the tail side of the upper pull plate 4, and a through hole 4 14 is opened on the tail side of the lower pull plate 8, and the through hole 2 12. The through hole 3 13 and the through hole 4 14 are located on the same vertical line. The pull plate flange 5 provides a horizontal reference surface for the upper pull plate 4 and the lower pull plate 8 to be installed. The slide groove 1 6 and the slide groove 2 7 are arranged in a cross shape. The slide groove 1 6 and the slide groove 2 7 form a storage space for the upper pull plate 4 and the lower pull plate 8 respectively. The upper pull plate 4 and the lower pull plate 8 are arranged in a cross shape, so that the upper pull plate 4 and the lower pull plate 8 are arranged in a cross shape, so that the head and tail ends of the upper pull plate 4 and the head and tail ends of the lower pull plate 8 are not in the same direction;

[0024] A material discharge hole seat 2 is installed at the lower end of the storage barrel 1 and at the upper end of the pull plate flange 5, the interior of the material discharge hole seat 2 is connected with the interior of the storage barrel 1, an upper cover plate 3 slidably connected to the upper end of the upper pull plate 4 is installed between the lower end of the material discharge hole seat 2 and the upper end of the pull plate flange 5, the lower end of the lower pull plate 8 is slidably connected to the lower cover plate 9 installed at the lower end of the pull plate flange 5, a material discharge port 10 is provided at the lower end of the lower cover plate 9, a through hole 11 is provided on the head side of the upper cover plate 3, which is respectively aligned with the material discharge hole seat 2 and the through hole 3 13, and a through hole 5 15 is provided on the head side of the lower cover plate 9, which is respectively aligned with the through hole 3 13 and the material discharge port 10, and the through hole 11 and the through hole 5 15 are located on the same vertical line, and the upper cover plate 3 takes the material discharge hole seat 2 as a reference plane, and the material discharge hole seat 2 is provided at the lower end of the storage barrel 1 to accommodate the upper cover plate 3. The depth of the chute 1 6 is the same as the thickness of the upper pull plate 4. The lower end of the upper cover plate 3 is slightly in contact with the upper end of the upper pull plate 4. The upper cover plate 3 covers the upper pull plate 4. The upper cover plate 3 applies slight pressure to the upper pull plate 4, so that the bottom of the upper pull plate 4 is slightly in contact with the bottom wall of the chute 1 6. The upper cover plate 3 protects the upper pull plate 4 set inside the chute 1 6. The depth of the chute 2 7 is the same as the thickness of the lower pull plate 8. The upper end of the lower cover plate 9 is slightly in contact with the lower end of the lower pull plate 8. The upper end of the lower cover plate 9 is slightly pressed with the lower end of the lower pull plate 8, so that the top of the lower pull plate 8 is slightly in contact with the top wall of the chute 2 7. The lower cover plate 9 covers the lower pull plate 8. The lower cover plate 9 protects the lower pull plate 8 set inside the chute 2 7. The discharge port 10 is kept below the pull plate flange 5 by using the lower cover plate 9 as the horizontal reference plane.

[0025] The upper cover plate 3, the upper pull plate 4, the pull plate flange 5, the lower pull plate 8, the lower cover plate 9 and other structures form a complete double-layer pull plate group, so as to achieve the effect of installing the upper pull plate 4 and the lower pull plate 8 at the lower end of the storage barrel 1, and the discharge hole seat 2, the upper cover plate 3, the upper pull plate 4, the pull plate flange 5, the lower pull plate 8, the lower cover plate 9 and the discharge port 10 form a complete double pull plate valve structure;

[0026] The head ends of the upper pull plate 4 and the lower pull plate 8 extend out of the front end of the pull plate flange 5, and the head ends of the upper pull plate 4 and the lower pull plate 8 are L-shaped. The upper pull plate 4 and the lower pull plate 8 are L-shaped to increase the contact area for easy grasping operation by hand. Pinch the L-shaped part to pull the upper pull plate 4 and the lower pull plate 8 outward in turn. The upper pull plate 4 slides outward inside the slide groove 6 and gradually extends outward from the pull plate flange 5. The upper end of the upper pull plate 4 slides and rubs with the lower end of the upper cover plate 3. The lower pull plate 8 slides outward inside the slide groove 7 and gradually extends outward from the pull plate flange 5. The plate flange 5, the lower end of the lower pull plate 8 and the upper end of the lower cover plate 9 slide and rub against each other, the upper pull plate 4 gradually brings the through hole 2 12 close to the through hole 3 13, and the lower pull plate 8 gradually brings the through hole 4 14 close to the through hole 3 13, and the through hole 2 12 and the through hole 4 14 are aligned and connected with the through hole 3 13 in sequence, so that the discharge hole seat 2, the through hole 1 11, the through hole 2 12, the through hole 3 13, the through hole 4 14, and the discharge port 10 are aligned and connected on the same vertical line, and the granular material can be discharged from the inside of the storage barrel 1 in sequence under the action of gravity. The hole seat 2, the through hole 11, the through hole 2 12, the through hole 3 13, and the through hole 4 14 are discharged downward from the discharge port 10. The head and tail walls of the cross section of the upper pull plate 4 are provided with a convex portion 16, and the head and tail walls of the chute 6 are provided with a concave portion 17 matching the adjacent convex portion 16. The head and tail walls of the cross section of the lower pull plate 8 are provided with a convex portion 2 18, and the head and tail walls of the chute 2 7 are provided with a concave portion 2 19 matching the adjacent convex portion 2 18. Since the head and tail walls of the upper pull plate 4 and the lower pull plate 8 are respectively provided with convex portions When the through hole 3 13 is aligned with the through hole 2 12 and the through hole 4 14 in a vertical line, the convex part 16 contacts and hooks with the concave part 17, and the convex part 2 18 contacts and hooks with the concave part 2 19. The convex part 16 and the concave part 17 are used together to lock the upper pull plate 4, and the convex part 2 18 and the concave part 2 19 are used together to lock the lower pull plate 8. In this way, the upper pull plate 4 and the lower pull plate 8 are avoided from being lost during the opening and closing of the discharge port 10, and the integrity of the double-layer pull plate valve structure is ensured;

[0027] When it is necessary to stop discharging the granular material, the upper pull plate 4 and the lower pull plate 8 are pushed inwardly into the pull plate flange 5 in turn, the upper pull plate 4 slides in the chute 1 6, the lower pull plate 8 slides in the chute 2 7, the convex part 16 is separated from the concave part 17, the convex part 2 18 is separated from the concave part 2 19, so that the upper pull plate 4 and the lower pull plate 8 sequentially stagger and block the through hole 3 13, and the through hole 3 13 is in a closed state, so that the path of the discharge hole seat 2, the through hole 1 11, the through hole 2 12, the through hole 3 13, the through hole 4 14, and the discharge port 10 is closed, and the lower Closing the upper pull plate 4 before closing the pull plate 8 can also block most of the granular materials. Then closing the lower pull plate 8 can make it easier to close. Even if the material is stuck and the upper pull plate 4 cannot be completely closed, the defect that the upper pull plate 4 cannot be completely closed can be further compensated by closing the lower pull plate 8, thereby avoiding the phenomenon that the granular materials cannot be lost from the discharge port 10 due to the upper pull plate 4 being stuck and unable to be completely closed. This double pull plate valve structure can completely close the discharge port 10 to avoid wasting the granular materials.

[0028] Among them, the working principle is mainly reflected in the following two aspects:

[0029] (I): When it is necessary to take out the granular material from the storage barrel 1, pinch the L-shaped part and pull the upper pull plate 4 and the lower pull plate 8 outward in turn. The upper pull plate 4 slides outward in the chute 1 6 and gradually extends the pull plate flange 5 outward. The upper end of the upper pull plate 4 slides outward in the chute 2 7 and gradually extends the pull plate flange 5 outward. The lower end of the lower pull plate 8 slides outward in the chute 2 7 and gradually extends the pull plate flange 5 outward. The lower end of the lower pull plate 8 slides and the upper end of the lower cover plate 9. The upper pull plate 4 gradually brings the through hole 2 12 closer to the through hole 3 13, and the lower pull plate 8 gradually brings the through hole 4 14 closer to the through hole 3 13. The through hole 2 12 and the through hole 4 14 are aligned with the through hole 3 13 in turn and penetrate, so that the discharge hole seat 2 and the through hole The first through hole 11, the second through hole 12, the third through hole 13, the fourth through hole 14, and the discharge port 10 are aligned and connected on the same vertical line. When the third through hole 13 is aligned with the second through hole 12 and the fourth through hole 14 in a vertical line, the convex part 16 contacts and hooks with the concave part 17, and the convex part 2 18 contacts and hooks with the concave part 2 19. The convex part 16 and the concave part 17 are used together to lock the upper pull plate 4, and the convex part 2 18 and the concave part 2 19 are used together to lock the lower pull plate 8. Under the action of gravity, the granular material can be discharged downward from the inside of the storage barrel 1 along the discharge hole seat 2, the first through hole 11, the second through hole 12, the third through hole 13, and the fourth through hole 14 from the discharge port 10;

[0030] (ii): When it is necessary to stop discharging the granular material, push the upper pull plate 4 and the lower pull plate 8 inwardly toward the inside of the pull plate flange 5 in turn, the upper pull plate 4 slides inside the slide groove 1 6, the lower pull plate 8 slides inside the slide groove 2 7, the convex part 16 disengages from the concave part 17, the convex part 2 18 disengages from the concave part 2 19, so that the upper pull plate 4 and the lower pull plate 8 sequentially stagger and block the through hole 3 13, the through hole 3 13 is in a closed state, and the path of the discharge hole seat 2, the through hole 1 11, the through hole 2 12, the through hole 3 13, the through hole 4 14, and the discharge port 10 is closed. Closing the upper pull plate 4 before closing the lower pull plate 8 can also block most of the granular materials, and then closing the lower pull plate 8, the lower pull plate 8 can be closed more easily.

Claims

1. A silo double pull plate valve structure, comprising a storage barrel (1), characterized in that: A pull plate flange (5) is provided below the storage barrel (1), and a slide groove 1 (6) and a slide groove 2 (7) are respectively provided at the upper and lower ends of the pull plate flange (5), an upper pull plate (4) is slidably connected inside the slide groove 1 (6), and a lower pull plate (8) is slidably connected inside the slide groove 2 (7); The pull plate flange (5) has a head side with a through hole three (13) which passes through the slide groove one (6) and the slide groove two (7) respectively, the upper pull plate (4) has a tail side with a through hole two (12), and the lower pull plate (8) has a tail side with a through hole four (14), and the through hole two (12), the through hole three (13) and the through hole four (14) are located on the same vertical line.

2. A silo double pull plate valve structure as claimed in claim 1, characterized in that: A material discharge hole seat (2) is installed at the lower end of the material storage barrel (1) and located at the upper end of the pull plate flange (5); the interior of the material discharge hole seat (2) is connected to the interior of the material storage barrel (1); an upper cover plate (3) slidably connected to the upper end of the upper pull plate (4) is installed between the lower end of the material discharge hole seat (2) and the upper end of the pull plate flange (5); the lower end of the lower pull plate (8) is slidably connected to a lower cover plate (9) installed at the lower end of the pull plate flange (5); and a material discharge port (10) is opened at the lower end of the lower cover plate (9).

3. A silo double pull plate valve structure as claimed in claim 2, characterized in that: The upper cover plate (3) is provided with a through hole one (11) on the head side thereof, which is aligned one-to-one with the material discharge hole seat (2) and the through hole three (13), respectively; the lower cover plate (9) is provided with a through hole five (15) on the head side thereof, which is aligned one-to-one with the through hole three (13) and the material discharge port (10), respectively; the through hole one (11) and the through hole five (15) are located on the same vertical line.

4. A silo double pull plate valve structure as claimed in claim 1, characterized in that: The depth of the first slide groove (6) is the same as the thickness of the upper pull plate (4), and the depth of the second slide groove (7) is the same as the thickness of the lower pull plate (8).

5. A silo double pull plate valve structure as claimed in claim 1, characterized in that: The head ends of the upper pull plate (4) and the lower pull plate (8) extend out of the front end of the pull plate flange (5), and the head ends of the upper pull plate (4) and the lower pull plate (8) are in an L shape.

6. A silo double pull plate valve structure as claimed in claim 1, characterized in that: The first slide groove (6) and the second slide groove (7) are arranged in a cross shape, and the upper pull plate (4) and the lower pull plate (8) are arranged in a cross shape.

7. A silo double pull plate valve structure as claimed in claim 1, characterized in that: The upper pull plate (4) is provided with a convex portion (16) on both the head and tail walls of the outer cross section, and the inner groove (6) is provided with a concave portion (17) matching the adjacent convex portion (16) on both the head and tail walls of the outer cross section. The lower pull plate (8) is provided with a convex portion (18) on both the head and tail walls of the outer cross section, and the inner groove (7) is provided with a concave portion (19) matching the adjacent convex portion (18) on both the head and tail walls.

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