Gate with multi-layer sealing structure
By adopting a multi-layer sealing structure and a removable cover design on the powder control gate, the problem of insufficient sealing performance of the gate is solved, and efficient sealing effect is achieved in the inflatable state, avoiding powder leakage, and supporting long-term stability use.
Patent Information
- Application Number
- CN202420675284.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-03
AI Technical Summary
Existing powder control gates are prone to leakage at the connection between the gate plate and the frame structure, especially when inflated and pressurized, the sealing performance is insufficient, resulting in serious powder leakage.
A gate with a multi-layer sealing structure is designed, and the first seal and the second seal are used to seal both sides of the opening and the gap ends, and the third seal is wound outside the gate to enhance the sealing performance, combined with a removable cover The plate and stopper further closes the gap to ensure sealing effect.
Effectively seal the internal and external material leakage points of the gate, ensure that powder leakage is avoided under the inflatable state, improve the sealing performance of the gate, and achieve long-term stable use and replacement of consumable parts through the removable cover.
Smart Images
Figure CN222163616U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gates for powder material control, and in particular relates to a gate for powder material control with high sealing performance. Background Art
[0002] The gate is a control device used to close and open the material channel. In the powder control system, the gate can be used to regulate the opening and closing of the powder channel. The gate is commonly found in the mixing process of cement and concrete. It consists of a rectangular frame structure, a gate plate and a gate plate drive device.
[0003] The existing gates for powder control are prone to leakage at the connection between the gate and the frame structure. The specific leakage points are on both sides of the gate and the gap where the gate passes through the frame structure. In addition, during the material preparation process, the material is transported by inflation and pressurization. At this time, the gate is subjected to a large positive pressure. In this case, the material leakage is particularly serious at the gap where the gate passes through the frame structure. The sealing performance of the existing gates for powder control needs to be improved. Utility Model Content
[0004] The purpose of the utility model is to provide a gate with a multi-layer sealing structure in order to solve the above problems.
[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:
[0006] A gate with a multi-layer sealing structure comprises a frame and a gate plate slidably arranged on the inner side of the frame, the frame is provided with a linear drive mechanism for moving the gate plate, and an opening is provided on the side of the frame away from the linear drive mechanism, the middle part of the frame is provided with a gap through which the gate plate can pass and is connected with the opening, first seals are symmetrically arranged on both sides of the opening, a second seal is arranged at one end of the opening close to the gap, a third seal is arranged around the outer side of the gate plate for sealing the connection between the gap and the gate plate, internal leakage points are easily formed on the left and right sides of the opening, and external leakage points are easily formed at the gap, the left and right sides of the opening and the end close to the gap are sealed by the first seal in cooperation with the second seal, and the sealing performance of the external leakage points is enhanced by the third seal between the gate plate and the gap.
[0007] As a further optimization solution of the present invention, two second sealing members are provided, and the two second sealing members are respectively in close contact with two side surfaces in the thickness direction of the gate plate.
[0008] As a further optimization solution of the utility model, the first sealing member and the second sealing member are both felt strips, and the third sealing member is a packing wound around the outer side of the gate plate.
[0009] As a further optimization solution of the utility model, the packing on the outer side of the gate plate is wound with at least four turns.
[0010] As a further optimization solution of the utility model, a stopper fixed to the frame is provided on the outer side of the gate plate, and the stopper is used to fix the third sealing member.
[0011] As a further optimization scheme of the utility model, the frame includes two first channel steels that are symmetrical to each other, two second channel steels fixed between the two first channel steels, and an angle steel located between the two second channel steels, the second channel steel and the first channel steel are perpendicular to each other, the gap is formed between the two angle steels, the stopper is fixedly connected to the two angle steels, and the third seal is located between the two angle steels and the stopper.
[0012] As a further optimization solution of the present utility model, assembly holes are provided around the first channel steel.
[0013] As a further optimization solution of the utility model, a cover plate is detachably connected to a side of the frame away from the opening.
[0014] As a further optimization solution of the utility model, the linear drive mechanism is a cylinder, and the output end of the cylinder is fixedly arranged at the end of the gate plate.
[0015] As a further optimization solution of the utility model, the linear drive mechanism is composed of a screw rod rotatably arranged at the end of the frame and a handle fixedly arranged on the outside of the screw rod, and a nut pair corresponding to the screw rod is fixedly arranged at the end of the gate.
[0016] The beneficial effects of the utility model are:
[0017] 1) The utility model seals both sides of the opening and one end close to the gap through the first and second strip-shaped sealing members, respectively, to block the internal and external leakage points of the gate, and strengthens the sealing of the external leakage points by winding the third sealing member between the gate plate and the gap, ensuring that the gate can still avoid leakage of powder when it is inflated;
[0018] 2) The utility model provides detachable cover plates at both ends of the frame away from the opening side to ensure the sealing of the outside of the gate, further close the gap connected to the opening, reduce the impact of the external environment on the internal opening, and later on, the wearing parts can be replaced by opening the cover plates to achieve long-term stable use. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model;
[0020] Figure 2 It is a side view structural diagram of the framework of the utility model;
[0021] Figure 3 yes Figure 2 The enlarged view of point A in the middle;
[0022] Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model;
[0023] Figure 5 It is a schematic diagram of the main structure of the second embodiment of the utility model.
[0024] In the figure: 1. frame; 2. gate; 3. linear drive mechanism; 4. opening; 5. gap; 6. first seal; 7. second seal; 8. third seal; 9. cover plate; 11. first channel steel; 12. second channel steel; 13. angle steel; 14. stopper; 15. assembly hole; 16. fastener; 17. limit column; 31. cylinder; 32. screw rod; 33. handle. DETAILED DESCRIPTION
[0025] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.
[0026] First embodiment
[0027] like Figure 1-3 As shown, a gate with a multi-layer sealing structure includes a frame 1 and a gate plate 2 slidably arranged on the inner side of the frame 1, a pull rod type cylinder 31 is arranged on the frame 1, and an opening 4 corresponding to a material taking channel is arranged on a side of the frame 1 away from the cylinder 31, a gap 5 is arranged in the middle of the frame 1 for the gate plate 2 to pass through and communicate with the opening 4, strip-shaped first sealing members 6 are symmetrically arranged on both sides of the opening 4, a strip-shaped second sealing member 7 is arranged at one end of the opening 4 close to the gap 5, an enclosing third sealing member 8 is arranged on the outer side of the gate plate 2 to seal the connection between the gap 5 and the gate plate 2, and the third sealing member 8 is arranged on a side of the gap 5 close to the cylinder 31. During the mixing process of cement and concrete, internal leakage points are easily formed on the left and right sides of the opening 4, and external leakage points are easily formed at the gap 5. The left and right sides of the opening 4 and one end close to the gap 5 are sealed by the first sealing member 7 in cooperation with the second sealing member 8. The sealing performance of the external leakage points is enhanced by the third sealing member 8 between the gate plate 2 and the gap 5, ensuring that the gate can still avoid leakage of powder when it is inflated.
[0028] Specifically, Figure 2 and Figure 3As shown, the first seal 6 on the left and right sides of the opening 4 is provided with two layers, and the two layers of the first seal 6 are closely attached to each other. The second seal 7 is provided with two layers, and the two second seals 7 are respectively located on the front and rear sides of the gate 2 and closely attached to the two sides of the gate 2 in the thickness direction. The first seal 6 and the second seal 7 are both felt strips. The left and right sides of the opening 4 are respectively provided with steel plates for pressing the felt strips on the left and right sides. The side of the opening 4 close to the gap 5 is provided with a steel plate for pressing the felt strip close to the gap 5. The steel plate is fixed to the inner wall of the frame 1 by bolts and nuts, so as to tighten the felt strip. The third seal 8 is an oil-immersed packing wound on the outside of the gate 2. The oil-immersed packing on the outside of the gate 2 is wound at least four times. A stopper 14 fixed to the frame 1 is provided on the outside of the gate 2, and the stopper 14 is used to fix the oil-immersed packing. In addition, the first seal 6 and the second seal 7 can also be replaced by strip-shaped sealing structures such as sealing strips, and the third seal 8 can also be replaced by sealing structures such as sealing rubber rings that can surround the gate 2.
[0029] Furthermore, the frame 1 includes two first channel steels 11 symmetrical to each other, two second channel steels 12 fixed between the two first channel steels 11, and an angle steel 13 located between the two second channel steels 12. Figure 2 , Figure 2 The right view after the first channel steel 11 on the right side is removed is shown. The second channel steel 12 is perpendicular to the first channel steel 11, and the gap 5 is formed between the two angle steels 13. The stopper 14 is composed of a rectangular frame surrounding the gate plate 2 and fixed heads fixed on the front and rear sides of the rectangular frame. The fixed heads on the front and rear sides are respectively fixed to the front and rear angle steels 13 by positioning pins. In addition, the fixed head of the stopper 14 can also be directly welded to the inner side of the angle steel 13 to achieve the fixation of the stopper 14. In addition, in some other embodiments, the packing can also be directly bonded to the two angle steels 13, and the setting of the stopper 14 can be cancelled at this time. The third sealing member 8 is located between the two angle steels 13 and the stopper 14. The periphery of the first channel steel 11 is provided with an assembly hole 15. The material taking channel is connected by the assembly hole 15 and the counter flange to facilitate the material taking and provide convenience for the gate installation. The first channel steel 11 is fixed to the angle steel 13 and the second channel steel 12 by threaded fasteners 16.
[0030] Furthermore, the front and rear ends of the frame 1 away from the opening 4 are detachably connected with a cover plate 9, which is also connected to the first channel steel 11 through a threaded fastener 16 to ensure the sealing of the gate exterior and reduce the impact of the external environment on the interior. The cover plate can be opened later to replace the wearing parts, so as to achieve long-term stable use. In addition, a plurality of limit posts 17 are rotatably arranged at the end opposite to the first channel steel 11. The limit posts 17 are located on the rear side of the first sealing member 6. The gate plate 2 is tightly attached to the limit posts 17. During the installation of the gate, the gate plate 2 is rotated to close the limit posts 17. Figure 1In the gate shown in the figure, the front end of the gate plate 2 is arranged upward, the gate plate 2 can withstand the positive pressure of the powder above, and the gate plate 2 is supported by the limit column 17.
[0031] Second embodiment
[0032] like Figure 4 and Figure 5 As shown, the difference between this embodiment and the first embodiment is that the gate 2 is driven manually. Specifically, a screw rod 32 is rotatably provided on the side of the frame 1 away from the opening 4, and a nut pair threadedly connected to the screw rod 32 is provided on the gate 2. A handle 33 is fixedly surrounded by the end of the screw rod 32 away from the gate 2. The screw rod 32 is rotated by the handle 33, and the screw rod 32 cooperates with the nut pair to drive the gate 2 to translate along the length direction of the frame 1, thereby realizing the opening and closing of the powder channel.
[0033] In summary, in the first embodiment, the linear drive mechanism 3 is a cylinder 31, and the output end of the cylinder 31 is fixedly arranged at the end of the gate plate 2. In the second embodiment, the linear drive mechanism 3 is composed of a screw rod 32 rotatably arranged at the end of the frame 1 and a handle 33 fixedly arranged outside the screw rod 32, and a nut pair corresponding to the screw rod 32 is fixedly arranged at the end of the gate plate 2. The gate of the first embodiment is a pneumatic gate, and the gate of the second embodiment is a manual gate. In addition, the linear drive mechanism 3 can also be replaced by a linear conveying device such as an oil cylinder, an electric cylinder, and a screw hoist.
[0034] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. A gate with a multi-layer sealing structure, comprising a frame (1) and a gate plate (2) slidably arranged inside the frame (1), the frame (1) being provided with a linear drive mechanism (3) for moving the gate plate (2), and an opening (4) being provided on a side of the frame (1) away from the linear drive mechanism (3), and a gap (5) being provided in the middle of the frame (1) for the gate plate (2) to pass through and communicating with the opening (4), characterized in that: First sealing members (6) are symmetrically arranged on both sides of the opening (4), a second sealing member (7) is arranged at one end of the opening (4) close to the gap (5), and a third sealing member (8) is arranged on the outer side of the gate plate (2) to seal the connection between the gap (5) and the gate plate (2).
2. The gate according to claim 1, characterized in that: Two second sealing members (7) are provided, and the two second sealing members (7) are respectively in close contact with two side surfaces of the gate plate (2) in the thickness direction.
3. The gate according to claim 1, characterized in that: The first sealing member (6) and the second sealing member (7) are both felt strips, and the third sealing member (8) is a packing wound around the outside of the gate plate (2).
4. The gate according to claim 3, characterized in that: The packing on the outer side of the gate plate (2) is wound with at least four turns.
5. The gate according to claim 1, characterized in that: A stopper (14) fixed to the frame (1) is provided on the outer side of the gate plate (2), and the stopper (14) is used to fix the third sealing member (8).
6. The gate according to claim 5, characterized in that: The frame (1) comprises two mutually symmetrical first channel steels (11), two second channel steels (12) fixedly arranged between the two first channel steels (11), and an angle steel (13) located between the two second channel steels (12), the second channel steel (12) and the first channel steel (11) being perpendicular to each other, the gap (5) being formed between the two angle steels (13), the stopper (14) being fixedly connected to the two angle steels (13), and the third sealing member (8) being located between the two angle steels (13) and the stopper (14).
7. The gate according to claim 6, characterized in that: Assembly holes (15) are provided around the first channel steel (11).
8. The gate according to claim 7, characterized in that: A cover plate (9) is detachably connected to a side of the frame (1) away from the opening (4).
9. The gate according to claim 1, characterized in that: The linear drive mechanism (3) is a cylinder (31), and the output end of the cylinder (31) is fixedly arranged at the end of the gate plate (2).
10. The gate according to claim 1, characterized in that: The linear drive mechanism (3) is composed of a screw rod (32) rotatably arranged at the end of the frame (1) and a handle (33) fixedly arranged outside the screw rod (32), and a nut pair corresponding to the screw rod (32) is fixedly arranged at the end of the gate plate (2).