Fluidized bed upper screen sealing cover with safety pin

Abstract

The utility model provides a fluidized bed upper screen sealing cover with a safety pin, which comprises a cover body and a spring type safety pin, one end of the cover body is rotatably connected to a fluidized bed, an air deflector is arranged at the front end of the cover body, and the spring type safety pin is fixed on the air deflector; a preformed hole is formed in the side wall of the cover body, and the front end of the spring type safety pin penetrates through the preformed hole and is in sliding connection with the wall plate. A positioning groove is formed in the wall plate, and the spring type safety pin automatically bounces into the positioning groove under the action of the spring to achieve the limiting effect. Through the arrangement of the spring type safety pin, the safety protection of the screen sealing cover at the upper part of the fluidized bed is increased, and the potential safety risk is effectively reduced; and when the sealing cover is opened to a certain size, the safety pin can automatically pop up under the action of the spring, so that the operation safety is further ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of cigarette manufacturing equipment, and in particular to a sealing cover for the upper screen of a fluidized bed with a safety pin. Background Technology

[0002] The upper screen sealing cover of the fluidized bed in ZJ112 and ZJ118 can be opened and closed manually. During the operation of the fluidized bed, the screen sealing cover serves to seal the bed and prevent particle leakage. When soot accumulates on the upper screen of the fluidized bed causing blockage, or when maintenance is required, the screen sealing cover can be manually opened and supported and fixed using its built-in support rod. One end of the support rod is connected to the edge of the screen sealing cover with a pin; when the sealing cover is closed, the other end is fixed with a magnet. When opening the sealing cover, rotate the support rod along the pin so that the other end is inserted into the positioning hole on the surface of the equipment.

[0003] Currently, the upper screen sealing cover of a fluidized bed is supported by a single support rod after opening. This rod is prone to impact, and coupled with the large size and weight of the sealing cover itself, there is a risk of mechanical injury when opening it. Furthermore, during the operation of the sealing cover, especially when opening or closing it, there are safety hazards caused by improper operation or mechanical failure. To reduce these hazards, designing a sealing cover with a safety pin is of great significance. Utility Model Content

[0004] The purpose of this utility model is to provide a fluidized bed upper screen sealing cover with a safety pin. By setting a spring-type safety pin, the sealing cover can play a role in limiting and protecting safety when it is opened, reducing potential safety hazards during operation.

[0005] According to the purpose of this utility model, this utility model provides a fluidized bed upper screen sealing cover with a safety pin, including a cover body and a spring-loaded safety pin. One end of the cover body is rotatably connected to the fluidized bed. A guide plate is provided at the front end of the cover body, and a spring-loaded safety pin is fixed on the guide plate. A reserved hole is provided on the side wall of the cover body, and the front end of the spring-loaded safety pin passes through the reserved hole and is slidably connected to the wall plate. A positioning groove is provided on the wall plate, and the spring-loaded safety pin automatically springs into the positioning groove under the action of the spring to play a limiting role.

[0006] Furthermore, the cover includes an arc-shaped cover plate, side plates, and a rear cover plate, the rear cover plate being rotatably connected to the fluidized bed via a rotating shaft.

[0007] Furthermore, the hinge is a hinge.

[0008] Furthermore, the spring-type safety pin includes a base, a pin body, a blocking block, and a spring. The base is fixed to the air guide plate, the pin body passes through a pin hole on the base and is slidably connected to the base, the blocking block is fixed on the pin body, the spring is sleeved on the pin body and is located between the pin hole and the blocking block, and the pin body moves relative to the base under the action of the spring.

[0009] Furthermore, the base is provided with mounting holes, and the base is fixed to the air guide plate through the mounting holes and screws.

[0010] Furthermore, the pin is cylindrical.

[0011] Furthermore, the tail end of the pin is provided with a ball handle, which is connected to the pin via a thread.

[0012] Furthermore, a ball bearing is provided at the front end of the pin body, and the ball bearing is connected to the pin body through a ball bearing sleeve.

[0013] Furthermore, the inside of the ball sleeve is spherical, and the diameter of the ball sleeve is larger than the diameter of the ball.

[0014] Furthermore, the surface of the ball sleeve is provided with an opening, the cross-section of which is smaller than the large circular area of ​​the ball, the ball partially protrudes from the ball sleeve, and the ball is confined inside the ball sleeve.

[0015] This utility model's technical solution enhances the safety protection of the upper screen sealing cover of the fluidized bed by setting a spring-loaded safety pin, effectively reducing potential safety risks. When the sealing cover is opened to a certain size, the safety pin will automatically pop out under the action of the spring, further ensuring operational safety. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the sealing cover according to an embodiment of the present invention;

[0018] Figure 2 This is an exploded structural diagram of the stop pin according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the stop pin in an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the sealing cover in the closed state according to an embodiment of the present invention;

[0021] Figure 5 This is a structural diagram of the sealing cover in the open state according to an embodiment of the present invention.

[0022] In the diagram, 1. Base; 2. Mounting hole; 3. Pin hole; 4. Pin body; 5. Blocking block; 6. Spring; 7. Ball handle; 8. Ball; 9. Ball sleeve; 10. Cover; 101. Arc-shaped cover plate; 102. Side plate; 103. Rear cover plate; 11. Fluidized bed; 12. Air guide plate; 13. Reserved hole; 14. Positioning groove. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1

[0027] like Figures 1-5 As shown:

[0028] Based on the analysis of the structure and characteristics of the two side wall panels of the existing fluidized bed upper screen sealing cover, this utility model designs a fluidized bed upper screen sealing cover with a safety pin.

[0029] The upper screen sealing cover of the fluidized bed with safety pin includes a cover body and a spring-loaded safety pin. One end of the cover body is rotatably connected to the fluidized bed via a pin shaft. The cover body can be opened or closed by rotating relative to the fluidized bed via the pin shaft.

[0030] The cover 10 has an overall arc-shaped structure. Specifically, the cover 10 includes an arc-shaped cover plate 101, side plates 102 disposed on both sides of the arc-shaped cover plate 101, and a rear cover plate 103 fixed to the rear side of the arc-shaped cover plate. The arc-shaped cover plate 101, the two side plates 102, and the rear cover plate 103 are welded to form an integral cover structure. Specifically, a pivot is located at the bottom of the rear cover plate 103, and the rear cover plate 103 is rotatably connected to the fluidized bed 11 via the pivot. The connection can be achieved using a hinge. The connection between the cover and the fluidized bed is achieved through the hinge.

[0031] An air guide plate 12 is provided at the bottom front end of the cover 10. The air guide plate 12 is fixed inside the front end of the arc-shaped cover plate 101. When the cover 10 is fastened onto the fluidized bed 11, the air guide plate 12 is arranged parallel to the fluidized bed 11. A spring-loaded safety pin is fixed on the air guide plate 12, which can be used to safely position the cover.

[0032] like Figure 2 and Figure 3 As shown, the spring-loaded safety pin includes a base 1, a pin body 4, a blocking block 5, and a spring 6, wherein:

[0033] like Figure 4 As shown, the base 1 provides fixed support for the entire safety pin. The base 1 has four mounting holes 2, through which four screws fix the base 1 to the air guide plate 12 of the screen sealing cover. The base 1 has pin holes 3, through which the pin 4 slides on the base 1. The pin holes 3 allow the pin 4 to reciprocate. The inner diameter of the pin holes 3 is slightly larger than the diameter of the pin 4. The inner diameter of the pin holes 3 is smaller than the diameter of the spring 6. The material of the pin holes 3 on the base 1 is hard enough to support the weight of the upper screen sealing cover, and the hardness of the pin 4 must also be sufficient to support the weight of the upper screen sealing cover.

[0034] The pin 4 is cylindrical, and a blocking block 5 is fixed in the middle of the pin 4. The position of the blocking block 5 can determine the size of the pin 4 extending out of the side of the sealing cover. The blocking block 5 also serves as the force point of one end of the spring 6. The spring 6 is sleeved on the pin 4, and the blocking block 5 is used to limit the position of the spring 6. The front and rear ends of the spring 6 are defined by the blocking block 5 and the pin hole 3, which define the movable range.

[0035] The tail end of the pin 4 is provided with a ball handle 7, which allows the pin 4 to be easily pulled manually. The ball handle 7 is connected to the pin 4 by threads. Specifically, the tail end of the pin 4 is machined with external threads, and the ball handle 7 is provided with internal threads that match it. The ball handle 7 is connected to the tail end of the pin 4 by threads.

[0036] The head end of the pin 4 is provided with a ball 8, which is connected to the pin 4 through a ball sleeve 9. The surface of the ball 8 is lubricated during use. Specifically, a hole of appropriate depth and an internal thread are machined at the front end of the pin 4. The external thread on the outside of the ball sleeve 9 is connected to the internal thread at the head of the pin 4. The ball 8 is placed inside the ball sleeve 9. When the ball sleeve 9 is connected to the head end of the pin 4, the ball 8 can roll inside the ball sleeve 9.

[0037] The ball sleeve 9 has a spherical interior with a diameter slightly larger than that of the ball 8. There is an opening on the surface of the ball sleeve 9 in the direction parallel to the thread. The cross-sectional area of ​​the opening is smaller than that of the large circle of the ball 8, so that part of the ball 8 is exposed from the ball sleeve 9, but is still confined inside the ball sleeve 9.

[0038] In this embodiment, a reserved hole 13 is provided on the side wall of the cover 10 (at the side plate 102). Under the elastic force of the spring 6, the front end of the pin 4 will pass through the reserved hole 13 on the cover 10, so that the ball 8 at the front end of the pin 4 is slidably connected to the wall plate. In this embodiment, when the spring 6 is in its natural state, the pin 4 can pass through the reserved hole of the sealing cover side plate and extend for a length greater than 10mm. At this time, since the front end of the pin 4 can slide freely with the wall plate under the action of the ball 8, it will not affect the opening and closing of the cover.

[0039] To ensure that the spring pin can limit and protect the sealing cover when the cover 10 is in the open state, a positioning groove 14 is provided on the wall panel (not shown in the diagram). The positioning groove 14 is a slot formed in the wall panel. Figure 5 As shown, when the sealing cover is lifted upwards to open, when the sealing cover reaches the open position, the pin 4 automatically springs into the positioning groove under the action of the spring 6. At this time, the front end of the pin 4 is engaged in the positioning groove 14, which serves to limit the sealing cover. If it is necessary to close the sealing cover later, simply pull the ball handle 7 backwards to pull the pin 4 out of the positioning groove to close the sealing cover.

[0040] In this embodiment, considering safety factors, a spring 6 with a large stiffness coefficient is selected. Therefore, the head end of the pin 4 will experience significant pressure against the wall panel during the opening and closing of the upper screen sealing cover, potentially damaging the wall panel surface. Thus, to reduce wear on the wall panel from the left end of the pin 4, a rolling structure is designed on the left end of the pin 4, effectively reducing friction with the wall panel.

[0041] This invention features a spring-loaded safety pin on the upper screen sealing cover of the fluidized bed, adding an extra layer of safety when the upper screen sealing cover is opened, effectively reducing potential safety risks. When the upper screen sealing cover is opened to a certain size, the safety pin automatically pops out under the spring force, further reducing safety risks.

[0042] This invention enhances the safety protection of the upper screen sealing cover of the fluidized bed by incorporating a spring-loaded safety pin, effectively reducing potential safety risks. When the sealing cover is opened to a certain extent, the safety pin automatically pops out under the action of the spring, further ensuring operational safety. The rolling structure reduces friction between the pin and the wall plate, extending the service life of the equipment and improving its safety and reliability.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealing cover for the upper screen of a fluidized bed with a safety pin, characterized in that, The device includes a cover and a spring-loaded safety pin. One end of the cover is rotatably connected to a fluidized bed. A guide plate is provided at the front end of the cover, and a spring-loaded safety pin is fixed on the guide plate. A reserved hole is provided on the side wall of the cover, and the front end of the spring-loaded safety pin passes through the reserved hole and is slidably connected to the wall plate. A positioning groove is provided on the wall plate, and the spring-loaded safety pin automatically springs into the positioning groove under the action of the spring to play a limiting role.

2. The fluidized bed upper screen sealing cover with safety pin according to claim 1, characterized in that, The cover includes an arc-shaped cover plate, side plates, and a rear cover plate, with the rear cover plate rotatably connected to the fluidized bed via a rotating shaft.

3. The fluidized bed upper screen sealing cover with safety pin according to claim 2, characterized in that, The hinge is a folding hinge.

4. The fluidized bed upper screen sealing cover with safety pin according to claim 1, characterized in that, The spring-type safety pin includes a base, a pin body, a blocking block, and a spring. The base is fixed to the air guide plate. The pin body passes through a pin hole on the base and is slidably connected to the base. The blocking block is fixed on the pin body. The spring is sleeved on the pin body and is located between the pin hole and the blocking block. The pin body moves relative to the base under the action of the spring.

5. The fluidized bed upper screen sealing cover with safety pin according to claim 4, characterized in that, The base is provided with mounting holes, and the base is fixed to the air guide plate through the mounting holes and screws.

6. The fluidized bed upper screen sealing cover with safety pin according to claim 4, characterized in that, The pin is cylindrical.

7. The fluidized bed upper screen sealing cover with safety pin according to claim 4, characterized in that, The pin body has a ball handle at its tail end, and the ball handle is connected to the pin body by a thread.

8. The fluidized bed upper screen sealing cover with safety pin according to claim 4, characterized in that, The pin body has a ball bearing at its front end, and the ball bearing is connected to the pin body through a ball bearing sleeve.

9. The fluidized bed upper screen sealing cover with safety pin according to claim 8, characterized in that, The ball sleeve has a spherical interior, and the diameter of the ball sleeve is larger than the diameter of the ball.

10. The fluidized bed upper screen sealing cover with safety pin according to claim 9, characterized in that, The surface of the ball sleeve has an opening, the cross-section of which is smaller than the large circular area of ​​the ball, the ball is partially exposed outside the ball sleeve, and the ball is confined inside the ball sleeve.

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