Negative pressure pipeline self-sealing device

Abstract

The utility model discloses a negative pressure pipeline self-sealing device, which relates to the technical field of cigarette production and comprises a negative pressure pipeline, a fixing frame, a pin shaft, a connecting plate, a sealing cover and a balancing weight. The negative fixing frame is fixedly connected to the lower end of the negative pressure pipeline, the pin shaft is installed on the fixing frame, the connecting plate is fixedly connected with the pin shaft, the sealing cover completely covers a water outlet of the negative pressure pipeline, the left end of the sealing cover is fixedly connected with the connecting plate, and the balancing weight is installed at the left end of the connecting plate. The water supply and drainage pipeline is provided with the self-sealing device, so that the internal pressure of the drainage pipeline is kept consistent, the sealing cover is opened after the weight of water in the drainage pipeline is larger than that of the balancing weight, and the sealing cover is closed after the water is drained out of the pipeline, and the internal pressure of the drainage pipeline is continuously kept; the phenomenon that the drainage pipe cannot drain water due to pressure rise in the drainage pipeline is effectively avoided, and normal operation of equipment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette production, in particular to a device for self-sealing of a negative pressure pipeline. Background Art

[0002] Water curtain dust removal equipment is a commonly used dust removal equipment in workshops. This equipment has the advantages of significant dust removal effect and low use cost. Its working principle is that the equipment uses a high-pressure centrifugal fan to suck out the dust-containing gas, and then sends the dust-containing gas to a water tank filled with water at a certain height. At this time, the gas flows from bottom to top, and the high-pressure nozzle sprays water mist from top to bottom to capture dust particles in the air, thereby achieving a cleaning effect. In actual use, the air will bring out some water after passing through the water tank, and this part of the water will flow into the drainage pipe. However, since the water tank is negative pressure and one end of the drainage pipe is connected to the atmosphere, during the drainage process, the drainage pipe may be unable to drain due to the increased pressure in the drainage pipe, and even water reflux may occur, which is not conducive to the normal operation of the equipment. Utility Model Content

[0003] The utility model provides a negative pressure pipeline self-sealing device in order to avoid the deficiencies in the prior art.

[0004] The utility model adopts the following technical scheme to solve the technical problem: a negative pressure pipe self-sealing device, including a negative pressure pipe, and also including a fixing frame, a pin shaft, a connecting plate, a sealing cover and a counterweight; the negative fixing frame is fixedly connected to the lower end of the negative pressure pipe, the pin shaft is installed on the fixing frame, the connecting plate is fixedly connected to the pin shaft, the sealing cover is in a state of completely covering the water outlet of the negative pressure pipe, and its left end is fixedly connected to the connecting plate, and the counterweight block is installed at the left end of the connecting plate.

[0005] Furthermore, there are two fixing brackets, and the two fixing brackets are located on the same side of the negative pressure pipe.

[0006] Furthermore, it also includes a bolt, which passes through the connecting plate and has a lower end threadedly connected to the counterweight block.

[0007] Furthermore, the weight of the configuration block is lower than the maximum total weight of the water stored in the negative pressure pipeline.

[0008] The utility model provides a negative pressure pipeline self-sealing device, which has the following beneficial effects:

[0009] The utility model installs a self-sealing device in the water supply and drainage pipe to keep the internal pressure of the drainage pipe consistent. When the weight of water in the drainage pipe is greater than the weight of the counterweight, the sealing cover opens. After the water is discharged from the pipe, the sealing cover closes to continue to maintain the internal pressure of the drainage pipe, effectively avoiding the phenomenon that the drainage pipe cannot drain due to the increased pressure in the drainage pipe, which is conducive to the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] In the figure:

[0012] 1. Negative pressure pipe, 2. Fixed frame, 3. Pin shaft, 4. Connecting plate, 5. Sealing cover, 6. Bolt, 7. Counterweight. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] like Figure 1 As shown, its structural relationship is: it includes a negative pressure pipe 1, and also includes a fixing frame 2, a pin shaft 3, a connecting plate 4, a sealing cover 5 and a counterweight 7; the negative fixing frame 2 is fixedly connected to the lower end of the negative pressure pipe 1, the pin shaft 3 is installed on the fixing frame 2, the connecting plate 4 is fixedly connected to the pin shaft 3, the sealing cover 5 is in a state of completely covering the water outlet of the negative pressure pipe 1, and its left end is fixedly connected to the connecting plate 4, and the counterweight 7 is installed at the left end of the connecting plate 4.

[0015] Preferably, there are two fixing frames 2 , and the two fixing frames 2 are located on the same side of the negative pressure pipe 1 .

[0016] Preferably, it also includes a bolt 6 , which passes through the connecting plate 4 and has a lower end threadedly connected to the counterweight 7 .

[0017] Preferably, the weight of the configuration block 7 is lower than the maximum total weight of the water stored in the negative pressure pipeline 1 .

[0018] When used specifically, the following processes are included:

[0019] Water enters the negative pressure pipe 1 from the water tank. After a certain weight of water is stored in the negative pressure pipe 1, the weight is greater than the weight of the counterweight 7. The counterweight 7 rises, driving the connecting plate 4 to open the sealing cover 5, and the water is discharged from the negative pressure pipe 1. Subsequently, the counterweight 7 descends, driving the connecting plate 4 to close the sealing cover 5.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0021] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A negative pressure pipeline self-sealing device, comprising a negative pressure pipeline (1), characterized in that: It also comprises a fixing frame (2), a pin shaft (3), a connecting plate (4), a sealing cover (5) and a counterweight (7); the fixing frame (2) is fixedly connected to the lower end of the negative pressure pipe (1), the pin shaft (3) is mounted on the fixing frame (2), the connecting plate (4) is fixedly connected to the pin shaft (3), the sealing cover (5) is in a state of completely covering the water outlet of the negative pressure pipe (1), and the left end of the sealing cover is fixedly connected to the connecting plate (4), and the counterweight (7) is mounted on the left end of the connecting plate (4).

2. The negative pressure pipeline self-sealing device according to claim 1, characterized in that: The number of the fixing frames (2) is two, and the two fixing frames (2) are located on the same side of the negative pressure pipe (1).

3. The negative pressure pipe self-sealing device according to claim 1, characterized in that: It also includes a bolt (6), wherein the bolt (6) passes through the connecting plate (4) and the lower end of the bolt is threadedly connected to the counterweight block (7).

4. The negative pressure pipeline self-sealing device according to claim 1, characterized in that: The weight of the counterweight block (7) is lower than the maximum value of the total weight of water stored in the negative pressure pipeline (1).

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