Self-adjusting sealing device
By designing a self-adjustment sealing device, the automatic fine adjustment of the plug is achieved by using telescopic power elements and adjustment parts, solving the airtightness problem caused by incomplete parallelism between the plug and the discharge port, and improving sealing and convenience of use is achieved.
Patent Information
- Application Number
- CN202421520693.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In a screw conveyor with cylinder blocking at the tail, the blocking plate is not completely parallel to the end surface of the discharge port, resulting in the inability to ensure airtightness.
A self-adjustment sealing device is designed, including a plug plate and a telescopic assembly. The telescopic assembly consists of a telescopic power element, a connecting rod, a adjusting member, a limiting member and a fastener. The telescopic power element drives the plug plate close to the discharge end, and automatically fine-tune is achieved through the adjusting part to ensure that the plug plate is fully fitted with the discharge end.
It achieves a complete fit between the plug plate and the discharge port, ensures sealing, is easy to use, and is suitable for screw conveyors that require vacuum pressure preservation.
Smart Images
Figure CN222833506U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing, in particular to a self-adjusting sealing device. Background Art
[0002] The screw conveyor with a cylinder plugging plate at the tail is used for cantilever screw conveyors. The cylinder is directly connected to the plugging plate, and the cylinder pushes the plugging plate to block the discharge port of the screw conveyor to prevent the material from continuing to slide out of the discharge port after metering. However, due to factors such as processing and installation, it is impossible for the plugging plate to be completely parallel to the end face where the discharge port is located, and it is impossible to ensure that the plugging plate and the end face where the discharge port is located are completely fitted, and the air tightness cannot be guaranteed. Utility Model Content
[0003] Based on this, it is necessary to provide a self-adjusting sealing device with good sealing effect to address the above problems.
[0004] A self-adjusting sealing device comprises a blocking plate and a telescopic assembly, wherein the telescopic assembly comprises a telescopic power element, a connecting rod and an adjusting member, wherein the telescopic power element is mounted on a discharge pipe; the connecting rod is mounted on the power output end of the telescopic power element, and the adjusting member is mounted on an end of the connecting rod away from the telescopic power element; the blocking plate is rotatably connected to the adjusting member, and the blocking plate is used to close or open the discharge end of a screw conveyor.
[0005] In one embodiment, the telescopic assembly further includes a limit member, which is slidably disposed on one end of the connecting rod close to the adjusting member; there is a gap between the limit member and the blocking plate, and the limit member is used to abut against one end of the blocking plate connected to the adjusting member.
[0006] In one of the embodiments, the telescopic assembly further includes a fastener, which is mounted on the connecting rod, and one end of the fastener abuts against one end of the limiting member.
[0007] In one embodiment, the adjusting member includes a support portion and a rotating portion, the rotating portion can rotate around one end of the support portion, the support portion is mounted on the connecting rod, and the rotating portion is mounted on the blocking plate.
[0008] In one of the embodiments, the blocking plate includes a panel and a mounting seat connected to one end of the panel, and the rotating part is inserted into the mounting seat.
[0009] In one embodiment, the support portion is threadedly connected to the connecting rod, and the rotating portion is threadedly connected to the mounting seat.
[0010] In one embodiment, the telescopic assembly further includes a first fixing member and a second fixing member, wherein the first fixing member is used to fix the connecting rod and the support portion, and the second fixing member is used to fix the mounting seat and the rotating portion.
[0011] In one of the embodiments, a sealing gasket is further included. The sealing gasket is installed at an end of the panel away from the mounting seat, and the sealing gasket is used to abut against the discharge end of the screw conveyor.
[0012] In one of the embodiments, it further includes a partition and a third fixing member. The partition is installed at one end of the sealing gasket away from the panel, and the third fixing member is used to fix the partition, the sealing gasket and the panel.
[0013] In one embodiment, the telescopic assembly further includes a pad, the pad is mounted on the discharge pipe, and the telescopic power element is mounted on the pad.
[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0015] The self-adjusting sealing device of the utility model drives the blocking plate to approach the discharge end of the screw conveyor through the telescopic power element. When the blocking plate abuts against the discharge end of the screw conveyor, the blocking plate rotates around the adjusting member to achieve automatic fine-tuning, so that the blocking plate completely fits the discharge end of the screw conveyor to ensure sealing. The self-adjusting sealing device is easy to use and has a good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the assembly structure of a self-adjusting sealing device shown in an embodiment of the utility model;
[0017] Figure 2 for Figure 1 Sectional view along line AA;
[0018] Figure 3 for Figure 2 Enlarged view of the middle circle B;
[0019] Figure 4 for Figure 1 A schematic diagram of the structure of the self-adjusting sealing device shown, wherein the discharge pipe and the screw conveyor are not shown;
[0020] Figure 5 for Figure 4 Exploded view of the self-adjusting seal shown.
[0021] The meanings of the numbers in the accompanying drawings are:
[0022] 100. Self-adjusting sealing device;
[0023] 10. Blocking plate; 11. Panel; 12. Mounting seat; 20. Telescopic assembly; 21. Telescopic power element; 22. Connecting rod; 23. Adjusting member; 231. Support part; 232. Rotating part; 24. First fixing member; 25. Second fixing member; 26. Limiting member; 27. Fastener; 28. Pad; 30. Sealing gasket; 40. Partition; 50. Third fixing member; 80. Discharging pipe; 90. Screw conveyor. DETAILED DESCRIPTION
[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0030] Please refer to Figures 1 to 5 , is a self-adjusting sealing device 100 of an embodiment of the utility model, comprising a plugging plate 10 and a telescopic assembly 20, the telescopic assembly 20 comprising a telescopic power element 21, a connecting rod 22 and an adjusting member 23, the telescopic power element 21 is mounted on the discharge pipe 80; the connecting rod 22 is mounted on the power output end of the telescopic power element 21, the adjusting member 23 is mounted on the end of the connecting rod 22 away from the telescopic power element 21, the plugging plate 10 is rotatably connected to the adjusting member 23, and the plugging plate 10 is used to close or open the discharge end of the screw conveyor 90. The self-adjusting sealing device 100 drives the plugging plate 10 to approach the discharge end of the screw conveyor 90 through the telescopic power element 21. When the plugging plate 10 abuts against the discharge end of the screw conveyor 90, the plugging plate 10 rotates around the adjusting member 23 to achieve automatic fine-tuning, so that the plugging plate 10 completely fits the discharge end of the screw conveyor 90 to ensure sealing.
[0031] like Figures 1 to 5 As shown, in this embodiment, the blocking plate 10 is used to close or open the discharge end of the screw conveyor 90. Optionally, the blocking plate 10 includes a panel 11 and a mounting seat 12 connected to one end of the panel 11, and the panel 11 is used to close or open the discharge end of the screw conveyor 90.
[0032] Please check again Figures 1 to 5The telescopic assembly 20 includes a telescopic power element 21, a connecting rod 22 and an adjusting member 23. The telescopic power element 21 is installed on the discharge pipe 80; the connecting rod 22 is installed on the power output end of the telescopic power element 21, and the adjusting member 23 is installed on the end of the connecting rod 22 away from the telescopic power element 21. The plugging plate 10 is rotatably connected to the adjusting member 23; when the plugging plate 10 abuts against the discharge end of the screw conveyor 90, the plugging plate 10 rotates around the adjusting member 23 to achieve automatic fine adjustment, so that the plugging plate 10 completely fits the discharge end of the screw conveyor 90 to ensure sealing. Optionally, the adjusting member 23 includes a support portion 231 and a rotating portion 232, and the rotating portion 232 can rotate around one end of the support portion 231, the support portion 231 is installed on the connecting rod 22, and the rotating portion 232 is installed on the plugging plate 10. Furthermore, one end of the support portion 231 connected to the rotating portion 232 is spherical; the rotating portion 232 is inserted into the mounting seat 12; in one embodiment, the support portion 231 is threadedly connected to the connecting rod 22, and the rotating portion 232 is threadedly connected to the mounting seat 12.
[0033] like Figure 5 As shown, the telescopic assembly 20 further includes a first fixing member 24 and a second fixing member 25. The first fixing member 24 is used to fix the connecting rod 22 and the support portion 231 to further prevent the support portion 231 from loosening; the second fixing member 25 is used to fix the mounting seat 12 and the rotating portion 232 to further prevent the rotating portion 232 from loosening. Figures 3 to 5 As shown, the telescopic assembly 20 also includes a limit member 26, which is slidably disposed on one end of the connecting rod 22 close to the adjusting member 23; there is a gap between the limit member 26 and the blocking plate 10 to facilitate the rotation of the blocking plate 10; the limit member 26 is used to abut against one end of the blocking plate 10 connected to the adjusting member 23 to limit the rotation range of the blocking plate 10; by adjusting the position of the limit member 26, the gap between the limit member 26 and the mounting seat 12 is adjusted, thereby adjusting the rotation range of the blocking plate 10. Optionally, the stopper 26 is threadedly connected to the outer side of the connecting rod 22, which is convenient for adjusting the position of the stopper 26 and reduces the processing requirements for the discharge pipe 80; further, the telescopic assembly 20 also includes a fastener 27, which is installed on the connecting rod 22, and one end of the fastener 27 abuts against one end of the stopper 26, further fixing the position of the stopper 26 to prevent loosening from causing the gap between the stopper 26 and the mounting seat 12 to change; in one embodiment, the fastener 27 is threadedly connected to the connecting rod 22; the fastener 27 is a nut. In one embodiment, the telescopic assembly 20 also includes a pad 28, which is installed on the discharge pipe 80, and the telescopic power element 21 is installed on the pad 28.
[0034] like Figure 4 and Figure 5As shown, the self-adjusting sealing device 100 also includes a sealing gasket 30, which is installed at one end of the panel 11 away from the mounting seat 12, and the sealing gasket 30 is used to abut the discharge end of the screw conveyor 90; optionally, the sealing gasket 30 is a rubber gasket to avoid hard contact with the discharge end of the screw conveyor 90, and can improve air tightness.
[0035] like Figure 4 and Figure 5 As shown, the self-adjusting sealing device 100 also includes a partition 40 and a third fixing member 50. The partition 40 is installed at the end of the sealing gasket 30 away from the panel 11, and the third fixing member 50 is used to fix the partition 40, the sealing gasket 30 and the panel 11; optionally, the partition 40 is a flange, and the third fixing member 50 is a rivet; further, the size of the partition 40 is smaller than the size of the discharge end of the screw conveyor 90.
[0036] When in use, the partition 40, the sealing gasket 30 and the plugging plate 10 are fixed by the third fixing member 50, the connecting rod 22 is threadedly connected to one end of the adjusting member 23, and the plugging plate 10 is threadedly connected to the other end, and then the connecting rod 22 and the support part 231 are fixed by the first fixing member 24, and the mounting seat 12 and the rotating part 232 are fixed by the second fixing member 25 to prevent the support part 231 and the rotating part 232 from loosening, causing the plugging plate 10 to fall off, thereby causing irreversible damage to the downstream equipment, such as a mixer, etc. Then, the spacing between the limiting member 26 and the mounting seat 12 is adjusted by adjusting the position of the limiting member 26, thereby limiting the rotation range of the plugging plate 10; the position of the limiting member 26 is fixed by the fastener 27, and the position of the limiting member 26 is further fixed.
[0037] When the discharge end of the screw conveyor 90 needs to be closed, the telescopic power element 21 drives the blocking plate 10 to approach the discharge end of the screw conveyor 90 through the connecting rod 22 until the sealing gasket 30 abuts against the discharge end of the screw conveyor 90. As the connecting rod 22 moves further, the blocking plate 10 is forced to drive the rotating part 232 to rotate around the support part 231, so that the blocking plate 10 can be automatically fine-tuned, so that the sealing gasket 30 is completely in contact with the discharge end of the screw conveyor 90 to ensure the sealing performance. The self-adjusting sealing device 100 has a good sealing effect and can draw negative pressure, and is suitable for screw conveyors 90 that require vacuum pressure maintenance.
[0038] The self-adjusting sealing device 100 of the present invention drives the blocking plate 10 to approach the discharge end of the screw conveyor 90 through the telescopic power element 21. When the blocking plate 10 abuts against the discharge end of the screw conveyor 90, the blocking plate 10 rotates around the adjusting member 23 to achieve automatic fine-tuning, so that the blocking plate 10 completely fits the discharge end of the screw conveyor 90 to ensure sealing. The self-adjusting sealing device 100 is easy to use and has a good sealing effect.
[0039] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0040] 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 utility model patent. 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. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A self-adjusting sealing device, characterized in that: It includes a blocking plate and a telescopic component, the telescopic component includes a telescopic power element, a connecting rod and an adjusting part, the telescopic power element is installed on the discharge pipe; the connecting rod is installed on the power output end of the telescopic power element, the adjusting part is installed on the end of the connecting rod away from the telescopic power element, the blocking plate is rotatably connected to the adjusting part, and the blocking plate is used to close or open the discharge end of the screw conveyor.
2. The self-adjusting sealing device according to claim 1, characterized in that: The telescopic assembly also includes a limit member, which is slidably disposed on one end of the connecting rod close to the adjusting member; there is a gap between the limit member and the blocking plate, and the limit member is used to abut against one end of the blocking plate connected to the adjusting member.
3. The self-adjusting sealing device according to claim 2, characterized in that: The telescopic assembly further comprises a fastener, which is mounted on the connecting rod, and one end of the fastener abuts against one end of the limiting member.
4. The self-adjusting sealing device according to claim 1, characterized in that: The adjusting member includes a support portion and a rotating portion, wherein the rotating portion can rotate around one end of the support portion, the support portion is mounted on the connecting rod, and the rotating portion is mounted on the blocking plate.
5. The self-adjusting sealing device according to claim 4, characterized in that: The blocking plate comprises a panel and a mounting seat connected to one end of the panel, and the rotating part is inserted into the mounting seat.
6. The self-adjusting sealing device according to claim 5, characterized in that: The support portion is threadedly connected to the connecting rod, and the rotating portion is threadedly connected to the mounting seat.
7. The self-adjusting sealing device according to claim 5, characterized in that: The telescopic assembly further includes a first fixing member and a second fixing member, wherein the first fixing member is used to fix the connecting rod and the supporting column, and the second fixing member is used to fix the mounting seat and the rotating portion.
8. The self-adjusting sealing device according to claim 5, characterized in that: It also includes a sealing gasket, which is installed at one end of the panel away from the mounting seat, and is used to abut against the discharge end of the screw conveyor.
9. The self-adjusting sealing device according to claim 8, characterized in that: It also includes a partition and a third fixing member. The partition is installed at one end of the sealing gasket away from the panel, and the third fixing member is used to fix the partition, the sealing gasket and the panel.
10. The self-adjusting sealing device according to claim 1, characterized in that: The telescopic assembly also includes a pad, which is mounted on the discharge pipe, and the telescopic power element is mounted on the pad.