Pipeline pressure increasing valve

Abstract

The pipeline pressure increasing valve comprises a pressure increasing valve body internally provided with a pressure increasing cavity, a first connecting part, a second connecting part and a pressure increasing opening formed in the pressure increasing valve body, wherein the first connecting part and the second connecting part are arranged at the two ends of the pressure increasing valve body respectively; the first connecting part is detachably connected with an upstream pipeline, the second connecting part is detachably connected with a downstream pipeline, and a filter stick penetrates through the pressurizing cavity from the upstream pipeline and then enters the downstream pipeline. The inner diameter of the end, close to the second connecting part, of the pressurizing cavity is smaller than that of the end, close to the first connecting part, of the pressurizing cavity, the pressurizing opening is communicated with the pressurizing cavity, and the pressurizing opening conveys gas into the pressurizing cavity so that the conveying speed of the filter sticks in the pressurizing cavity can be increased. According to the invention, the filter sticks are prevented from being blocked in the filter stick conveying pipeline, and the production efficiency of cigarettes is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of booster valves, and in particular relates to a pipeline booster valve. Background Art

[0002] In the tobacco industry, the transmitter applies compressed air to the filter rod conveying pipeline, so that the filter rod is pushed by the airflow through the filter rod conveying pipeline to the receiver for cigarette production by the cigarette rolling machine. In order to make the filter rod transmitting and receiving system stable, the total length of the conveying pipeline is generally required to be within 300 meters. With the development of the tobacco industry, the area of ​​the workshop has gradually increased, and the conveying pipeline often exceeds 300 meters. At this time, due to the loss of transmitting air pressure along the way and leakage loss during the filter rod conveying process, when the total length of the conveying pipeline is greater than 300 meters, the pressure in the conveying pipeline between the transmitter and the receiver is insufficient, causing the filter rod to move slowly or even stop in the conveying pipeline, resulting in the filter rod being blocked in the filter rod conveying pipeline. When the filter rod is blocked, the operator needs to spend a lot of time to clear the blocked filter rod, which leads to reduced cigarette production efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a pipeline booster valve, which avoids filter rods from being blocked in a filter rod conveying pipeline and improves the production efficiency of cigarettes.

[0004] The technical solution adopted by the present invention to solve its technical problem is to propose a pipeline booster valve, including a booster valve body with a booster chamber provided inside, a first connecting part and a second connecting part respectively arranged at two ends of the booster valve body, and a booster port arranged on the booster valve body; the first connecting part is detachably connected to the upstream pipeline, the second connecting part is detachably connected to the downstream pipeline, the filter rod enters the downstream pipeline after passing through the booster chamber from the upstream pipeline, the inner diameter of the end of the booster chamber close to the second connecting part is smaller than the inner diameter of the end of the booster chamber close to the first connecting part, the booster port is connected to the booster chamber, and the booster port transports gas into the booster chamber to speed up the transportation speed of the filter rod in the booster chamber.

[0005] In the embodiment of the present application, the boost port is arranged on a side of the boost valve body close to the first connecting portion.

[0006] In an embodiment of the present application, a first transition pipe is arranged in the boost chamber; the first transition pipe is detachably connected to the boost valve body, one end of the first transition pipe is connected to the upstream pipeline, and a boost gap is provided between the other end and the downstream pipeline.

[0007] In the embodiment of the present application, the length of the pressurization gap is smaller than the length of the filter rod.

[0008] In an embodiment of the present application, one end of the first transition pipe away from the boost gap is integrally connected to the first connecting portion, the boost valve body includes a front valve block, a middle valve block, and a rear valve block, the front valve block is provided with the boost port, the rear valve block is provided with the second connecting portion, the front valve block, the middle valve block, and the rear valve block are provided with cavities with successively decreasing inner diameters, and the front valve block, the middle valve block, and the rear valve block are sequentially connected to enclose the boost chamber.

[0009] In an embodiment of the present application, a first sealing groove is provided on the front valve block, a first sealing edge is provided on the middle valve block, the first sealing edge is embedded in the first sealing groove, a second sealing groove is provided on the middle valve block, and a second sealing edge is provided on the rear valve block, the second sealing edge is embedded in the second sealing groove.

[0010] In an embodiment of the present application, a thread is provided on the first transition pipe, a threaded portion is provided on the front valve block, a thread is provided inside the threaded portion, the first transition pipe is threadedly connected to the front valve block, and one end of the first transition pipe close to the pressurization gap is in the shape of a trumpet with an outer diameter gradually decreasing along the filter rod transportation direction.

[0011] In the embodiment of the present application, the thread length on the first transition pipe is greater than the thread length of the threaded portion, and a gasket is provided between the front valve block and the middle valve block.

[0012] In an embodiment of the present application, the first connecting part and the second connecting part are cylindrical bodies with a transport channel provided inside and threads arranged outside, and the boost valve also includes an upper connecting nut and a lower connecting nut, the upper connecting nut is used to connect the upstream pipeline and the first connecting part, and the lower connecting nut is used to connect the downstream pipeline and the second connecting part.

[0013] In the embodiment of the present application, a sealing ring is provided at one end of the downstream pipe close to the second connecting portion, a first sealing block is provided between the sealing ring and the second connecting portion, and a second sealing block is sleeved on the outer periphery of the downstream pipe.

[0014] The beneficial effects of the present invention are: 1. A pipeline booster valve proposed by the present invention, in the process of the filter rod passing through the booster valve, the booster pipe will transport gas to the booster chamber of the booster valve, because the inner diameter of the booster chamber near the second connection part is smaller than the inner diameter of the booster chamber near the first connection part, the flow-break surface of the gas at the end near the second connection part is smaller than the flow-break surface of the gas at the end near the first connection part, the flow rate of the gas at the end near the second connection part is greater than the flow rate of the gas at the end near the first connection part, the pressure of the gas at the end near the second connection part is less than the pressure of the gas at the end near the first connection part, the gas in the booster chamber will move along the filter rod transportation direction, the filter rod is pushed by the gas with faster flow rate in the booster chamber, so as to realize the boosting and acceleration of the filter rod during the filter rod transportation process, thereby avoiding the filter rod from being blocked in the filter rod transportation pipeline, and improving the production efficiency of cigarettes; 2. A pipeline booster valve proposed by the present invention has a first transition pipe in the booster chamber, a booster gap is provided between the other end of the first transition pipe and the downstream pipeline, the gas transported by the booster pipe to the booster chamber will move along the transport direction of the filter rod, and then enter the downstream pipeline from the booster gap to speed up the transport speed of the filter rod, and in the process of the filter rod passing through the booster valve, the filter rod is transported in the first transition pipe, thereby preventing the filter rod from being blocked in the booster valve; 3. A pipeline booster valve proposed by the present invention has a first sealing groove on the front valve block, a first sealing edge on the middle valve block, the first sealing edge is embedded in the first sealing groove, a second sealing groove on the middle valve block, a second sealing edge on the rear valve block, the second sealing edge is embedded in the second sealing groove, thereby strengthening the connection between the valve blocks and improving the sealing between the valve blocks; 4. The pipeline boosting valve proposed by the present invention sets the end of the first transition pipe close to the boosting gap into a trumpet shape with a gradually decreasing outer diameter, shortening the movement distance of the gas in the annular gap, reducing gas loss, and improving the boosting and acceleration effects of the filter rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the present invention and are used together with the description to explain the principles of the present invention. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. For those of ordinary skill in the art, other drawings can be obtained from these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of a pipeline booster valve according to an embodiment of the present invention; Figure 2 For the embodiment of the present invention Figure 1 A cross-sectional view at point A in FIG. Figure 3A cross-sectional view of a pressure boosting valve body of a pipeline pressure boosting valve according to an embodiment of the present invention; Figure 4 For the embodiment of the present invention Figure 2 The enlarged view of point C in FIG. Figure 5 It is an exploded schematic diagram of a booster valve body of a pipeline booster valve according to an embodiment of the present invention; Figure 6 A schematic diagram of a front valve block of a pipeline booster valve according to an embodiment of the present invention; Figure 7 It is a schematic diagram of a middle valve block of a pipeline booster valve according to an embodiment of the present invention; Figure 8 It is a side view of a middle valve block of a pipeline booster valve according to an embodiment of the present invention; Fig. 9 It is a schematic diagram of a rear valve block of a pipeline booster valve according to an embodiment of the present invention; Fig.10 This is a schematic diagram of the connection between a first transition pipe and a first connecting portion of a pipeline booster valve according to an embodiment of the present invention; Fig.11 This is a schematic diagram of an explosion when the second connecting part of a pipeline booster valve according to an embodiment of the present invention is connected.

[0017] In the figure: 1. boost chamber; 2. boost valve body; 21. front valve block; 22. middle valve block; 23. rear valve block; 24. first sealing groove; 25. first sealing edge; 26. second sealing groove; 27. second sealing edge; 28. threaded portion; 29. ​​gasket; 3. first connecting portion; 31. upper connecting nut; 4. second connecting portion; 41. lower connecting nut; 42. first sealing block; 43. second sealing block; 5. boost port; 6. upstream pipeline; 7. downstream pipeline; 71. sealing ring; 8. first transition pipe; 9. boost gap. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the embodiments of the present invention and the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work. In addition, the design orientation only represents the relative position relationship between the components, not the absolute position relationship.

[0019] The embodiment of the present invention provides a pipeline booster valve, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , mainly includes a boost valve body 2, a first connecting part 3, a second connecting part 4 and a boost port 5.

[0020] In the embodiment of the present application, the pipeline booster valve comprises a booster valve body 2, a first connection part 3, a second connection part 4 and a booster port 5. A booster chamber 1 is arranged inside the booster valve body 2, the first connection part 3 and the second connection part 4 are arranged on different sides of the booster valve body 2, the booster port 5 is arranged on the booster valve body 2, and the booster chamber 1 is close to one end of the second connection part 4 (i.e. Figure 3 The inner diameter of the boost chamber 1 (indicated by E) is smaller than the inner diameter of the boost chamber 1 near the first connecting portion 3 (i.e. Figure 3 The entire boost valve is connected to the filter rod delivery pipeline, the first connection part 3 is detachably connected to the upstream pipeline 6, the second connection part 4 is detachably connected to the downstream pipeline 7, the filter rod passes through the boost valve from the upstream pipeline 6 and is transported to the downstream pipeline 7, the boost port 5 is connected to the boost pipe, the boost pipe is a gas delivery pipeline, when the filter rod passes through the boost valve, the boost pipe will deliver gas to the boost chamber 1 of the boost valve, because the inner diameter of the boost chamber 1 at one end close to the second connection part 4 is smaller than the inner diameter of the boost chamber 1 at one end close to the first connection part 3, the gas is at the cut-off surface (which is Figure 1 The cross section at the direction at point B in the middle is smaller than the cut-off surface of the gas at one end close to the first connection part 3, the flow velocity of the gas at one end close to the second connection part 4 is greater than the flow velocity of the gas at one end close to the first connection part 3, the pressure of the gas at one end close to the second connection part 4 is less than the pressure of the gas at one end close to the first connection part 3, the gas in the boosting chamber 1 will move along the filter rod transportation direction, and the filter rod is pushed by the gas with a faster flow rate in the boosting chamber 1, so as to realize the pressurization and acceleration of the filter rod during the transportation of the filter rod, thereby avoiding the filter rod from being blocked in the filter rod conveying pipeline, thereby improving the production efficiency of cigarettes.

[0021] Specifically, the pressure boosting port 5 is arranged on a side of the pressure boosting valve body 2 close to the first connecting portion 3 .

[0022] In one possible implementation, see Figure 2 , Figure 4 A first transition pipe 8 is arranged in the boosting chamber 1, and the diameter of the first transition pipe 8 is smaller than the inner diameter of the end of the boosting chamber 1 close to the second connecting portion 4. At this time, due to the arrangement of the first transition pipe 8, the end of the boosting chamber 1 close to the second connecting portion 4 becomes an annular gap between the first transition pipe 8 and the boosting valve body 2 (i.e. Figure 4), the first transition pipe 8 is detachably connected to the boost valve body 2, one end of the first transition pipe 8 is connected to the upstream pipeline 6, and a boost gap 9 is provided between the other end and the downstream pipeline 7, and the boost gap 9 is the space between the end of the first transition pipe 8 and the downstream pipeline 7. The gas transported by the boost pipe to the boost chamber 1 will move along the transport direction of the filter rod, and then pass through the annular gap from the boost gap 9 to enter the downstream pipeline 7 to speed up the transport speed of the filter rod. When the filter rod passes through the boost valve, the filter rod is transported in the first transition pipe 8, thereby preventing the filter rod from being blocked in the boost valve.

[0023] Furthermore, the length of the boost gap 9 ( Figure 1 The direction shown by line A in the figure is smaller than the length of the filter rod, thereby ensuring that the filter rod can be stably transported from the first transition pipe 8 to the downstream pipeline 7.

[0024] In one possible implementation manner, the first transition pipe 8 is integrally connected to the first connecting portion 3 on one side away from the boost gap 9, and the boost valve body 2 includes a front valve block 21, a middle valve block 22, and a rear valve block 23. The front valve block 21 is provided with a boost port 5, and the rear valve block 23 is provided with a second connecting portion 4. The front valve block 21, the middle valve block 22, and the rear valve block 23 are provided with cavities with successively decreasing inner diameters. The front valve block 21, the middle valve block 22, and the rear valve block 23 are connected in sequence to form a boost chamber 1.

[0025] Specifically, the overall cross-sectional area of ​​the front valve block 21 ( Figure 1 The cross section at the middle B direction) is equal to the overall cross-sectional area of ​​the middle valve block 22, and the overall cross-sectional area of ​​the rear valve block 23 is smaller than the overall cross-sectional area of ​​the middle valve block 22. A first connecting through hole is provided on the side of the middle valve block 22 close to the rear valve block 23, and a first connecting threaded hole is provided on the front valve block 21. The screw passes through the first connecting through hole and is screwed to the first connecting threaded hole. A second connecting through hole is provided on the side of the rear valve block 23 close to the downstream pipeline 7, and a second connecting threaded hole is provided on the middle valve block 22. The screw passes through the second connecting through hole and is screwed to the second connecting threaded hole. When installing and disassembling, the operator operates on the same side of the booster valve, which is more in line with the operator's operating habits.

[0026] In one embodiment, in order to improve the sealing between the valve blocks, a first sealing groove 24 is provided on the front valve block 21, a first sealing edge 25 is provided on the middle valve block 22, the first sealing edge 25 is embedded in the first sealing groove 24, a second sealing groove 26 is provided on the middle valve block 22, and a second sealing edge 27 is provided on the rear valve block 23, and the second sealing edge 27 is embedded in the second sealing groove 26.

[0027] In one embodiment, the first transition pipe 8 is provided with threads, the front valve block 21 is provided with a threaded portion 28, the threaded portion 28 is arranged inside with threads, the first transition pipe 8 is threadedly connected to the front valve block 21, and the end of the first transition pipe 8 close to the boosting gap 9 is in a trumpet shape with an outer diameter gradually decreasing along the filter rod transportation direction. Figure 2 , Figure 4 As shown, due to the arrangement of the first transition pipe 8, the end of the boost chamber 1 close to the second connecting part 4 becomes an annular gap between the first transition pipe 8 and the boost valve body 2, and the end of the first transition pipe 8 close to the boost gap 9 is set to be a trumpet shape with a gradually decreasing outer diameter, which shortens the movement distance of the gas in the annular gap, reduces the gas loss, and improves the boost and acceleration effects of the filter rod.

[0028] Furthermore, the thread length on the first transition pipe 8 is greater than the thread length of the threaded portion, and a positioning nut is provided on the side of the front valve block 21 away from the middle valve block 22, and the positioning nut is threadedly connected to the first transition pipe 8 and abuts against the front valve block 21. A gasket 29 is provided between the front valve block 21 and the middle valve block 22, and a change in the number of gaskets 29 will change the annular gap between the first transition pipe 8 and the boost valve body 2, and the change in the annular gap will change the cross-sectional area of ​​the gas flowing in the annular gap, and the change in the cross-sectional area of ​​the gas flowing will cause the flow rate of the gas to change. By adjusting the threaded connection position of the first transition pipe 8 and the front valve block 21 and the number of gaskets 29, the annular gap formed by the first transition pipe 8 and the boost valve body 2 is adjusted to adjust the boosting effect of the boost valve.

[0029] In one embodiment, the first connection part 3 and the second connection part 4 are cylindrical bodies with a transport channel inside and threads outside. The first connection part 3 is connected to the upstream pipeline 6 through an upper connection nut 31, and the second connection part 4 is connected to the downstream pipeline 7 through a lower connection nut 41.

[0030] Furthermore, in order to avoid air leakage at the connection between the boost valve and the upstream pipe 6 and the downstream pipe 7 and to improve the sealing performance of the connection, an integrated sealing ring 71 is provided at one end of the downstream pipe 7 close to the second connection part 4, a first sealing block 42 is provided between the sealing ring 71 and the second connection part 4, a second sealing block 43 is sleeved on the outer periphery of the downstream pipe 7, and the second sealing block 43 abuts against the sealing ring 71. When installing the lower connection nut 41, the lower connection nut 41 is continuously screwed so that the lower connection nut 41, the second sealing block 43, the sealing ring 71, the first sealing block 42 and the second connection part 4 abut in sequence. Similarly, the same sealing block structure is provided between the upstream pipe 6 and the first connection part 3 to enhance the sealing performance of the upstream pipe 6 and the boost valve.

[0031] 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 comprising 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 statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0032] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation modes, and it cannot be determined that the specific embodiments of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A pipeline booster valve, characterized in that: The invention comprises a boosting valve body (2) having a boosting chamber (1) therein, a first connecting portion (3) and a second connecting portion (4) respectively arranged at two ends of the boosting valve body (2), and a boosting port (5) arranged on the boosting valve body (2); the first connecting portion (3) is detachably connected to an upstream pipeline (6), the second connecting portion (4) is detachably connected to a downstream pipeline (7), a filter rod passes through the boosting chamber (1) from the upstream pipeline (6) and enters the downstream pipeline (7), the inner diameter of one end of the boosting chamber (1) close to the second connecting portion (4) is smaller than the inner diameter of one end of the boosting chamber (1) close to the first connecting portion (3), the boosting port (5) is connected to the boosting chamber (1), and the boosting port (5) transports gas into the boosting chamber (1) to accelerate the transport speed of the filter rod in the boosting chamber (1).

2. A pipeline booster valve according to claim 1, characterized in that: The boost port (5) is arranged on a side of the boost valve body (2) close to the first connecting portion (3).

3. A pipeline booster valve according to claim 1, characterized in that: A first transition pipe (8) is provided in the boosting chamber (1); the first transition pipe (8) is detachably connected to the boosting valve body (2); one end of the first transition pipe (8) is in communication with the upstream pipeline (6), and a boosting gap (9) is provided between the other end and the downstream pipeline (7).

4. A pipeline booster valve according to claim 3, characterized in that: The length of the pressurizing gap (9) is smaller than the length of the filter rod.

5. A pipeline booster valve according to claim 3, characterized in that: One end of the first transition pipe (8) away from the boost gap (9) is integrally connected to the first connecting portion (3); the boost valve body (2) comprises a front valve block (21), a middle valve block (22), and a rear valve block (23); the front valve block (21) is provided with the boost port (5); the rear valve block (23) is provided with the second connecting portion (4); the front valve block (21), the middle valve block (22), and the rear valve block (23) are provided with cavities with successively decreasing inner diameters; the front valve block (21), the middle valve block (22), and the rear valve block (23) are sequentially connected to form the boost chamber (1).

6. A pipeline booster valve according to claim 5, characterized in that: The front valve block (21) is provided with a first sealing groove (24), the middle valve block (22) is provided with a first sealing edge (25), the first sealing edge (25) is embedded in the first sealing groove (24), the middle valve block (22) is provided with a second sealing groove (26), the rear valve block (23) is provided with a second sealing edge (27), the second sealing edge (27) is embedded in the second sealing groove (26).

7. A pipeline booster valve according to claim 5, characterized in that: The first transition pipe (8) is provided with a thread, the front valve block (21) is provided with a threaded portion (28), the threaded portion (28) is provided with a thread inside, the first transition pipe (8) is threadedly connected to the front valve block (21), and one end of the first transition pipe (8) close to the pressurization gap (9) is in the shape of a trumpet with an outer diameter gradually decreasing along the filter rod transportation direction.

8. A pipeline booster valve according to claim 7, characterized in that: The thread length on the first transition pipe (8) is greater than the thread length of the threaded portion (28), and a gasket (29) is provided between the front valve block (21) and the middle valve block (22).

9. A pipeline booster valve according to claim 7, characterized in that: The first connecting portion (3) and the second connecting portion (4) are cylindrical bodies with a transport channel provided inside and threads arranged outside. The booster valve further comprises an upper connecting nut (31) and a lower connecting nut (41). The upper connecting nut (31) is used to connect the upstream pipeline (6) and the first connecting portion (3), and the lower connecting nut (41) is used to connect the downstream pipeline (7) and the second connecting portion (4).

10. A pipeline booster valve according to claim 9, characterized in that: A sealing ring (71) is provided at one end of the downstream pipe (7) close to the second connecting portion (4), a first sealing block (42) is provided between the sealing ring (71) and the second connecting portion (4), and a second sealing block (43) is sleeved on the outer circumference of the downstream pipe (7).

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