Plate type silencer capable of adjusting flow area

Abstract

The invention relates to the technical field of ventilation silencers, and discloses a plate type silencer capable of adjusting the flow area, which comprises a base, a push rod is fixedly connected to the outer wall of the base, a first shell is fixedly connected to the front end of the base, a discharge pipe is fixedly connected to the top of the first shell, a first sliding groove is formed in the inner wall of the first shell, and a second sliding groove is formed in the outer wall of the first shell. A second sliding groove is formed in the side, close to the base, of the first shell, a locking assembly is fixedly connected to the inner wall of the first sliding groove, and a silencing assembly is movably connected to the inner wall of the second sliding groove. The silencing net is placed in the shell through the movable plate, the silencing net and the auxiliary assembly are adjusted, then a new silencing net is pushed into the equipment, operation is convenient, the replacement process is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation silencers, in particular to a plate-type silencer with adjustable flow area. Background Art

[0002] With the improvement of environmental protection requirements, in order to reduce the impact of high-noise equipment on the surrounding environment, it is generally required to arrange mufflers at the air inlet and outlet of the air inlet and exhaust fans to block the noise from spilling out.

[0003] The patent application with application number CN201310200760.2 discloses a plate-type muffler with adjustable flow area, including several muffler units; the muffler unit includes a fixed muffler, the muffler unit also includes a cavity formed by a back plate, upper and lower cover plates to form a rectangle, and the fixed muffler is fixed in the cavity; the back plate is provided with several guide shafts perpendicular to the back plate and passing through the fixed muffler; it also includes a movable muffler, and a guide sleeve matched with the guide shaft is arranged on the movable muffler, and the movable muffler can slide along the guide shaft by relying on the guide sleeve; it also includes two rotating shafts, two arc-shaped fixed guide plates and two arc-shaped movable guide plates respectively arranged at the front and rear ends of the cover plate and perpendicular to the guide shaft; it also includes a driver that can drive the movable muffler to move along the guide shaft. The muffler with the above structure can adjust its flow area, that is, determine the thickness and spacing of the muffler according to the average temperature of each year, so that a fan with suitable power can be selected.

[0004] When the above-mentioned equipment is in use, the flow area inside the equipment can be adjusted. However, with the long-term use of the plate-type silencer, a large amount of debris will accumulate on the silencer net of the plate-type silencer, which will reduce the silencer effect of the equipment. At this time, the staff is required to replace the silencer net. However, the existing mechanism is too complicated to replace the silencer net, which makes it more troublesome to replace the silencer net. Summary of the invention

[0005] The object of the present invention is to provide a plate-type muffler with adjustable flow area to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a plate-type muffler with adjustable flow area, comprising a base, the outer wall of the base is fixedly connected to a push rod, the front end of the base is fixedly connected to a shell 1, the top of the shell 1 is fixedly connected to a discharge pipe, the inner wall of the shell 1 is provided with a slide groove 1, the side of the shell 1 close to the base is provided with a slide groove 2, the inner wall of the slide groove 1 is fixedly connected to a locking component, the inner wall of the slide groove 2 is movably connected to a muffler component, and further comprising: The movable mechanism includes a second shell, an end of the push rod away from the base is fixedly connected to the second shell, and the position of the second shell is controlled by the push rod to change the flow area of ​​the equipment. When the silencer net needs to be replaced, the second shell only needs to be pulled out by the push rod. The outer wall of the second shell is movably connected to the second slide groove, and the top of the second shell is rotatably connected to a movable plate through a bearing. The front end of the second shell is provided with a movable groove, and the outer wall of the second shell is provided with a notch. The interior of the second shell is provided with a cavity, and the inner wall of the cavity is fixedly connected with an auxiliary component. The inner wall of the second shell is provided with a through hole one, and the inner wall of the second shell is also provided with a through hole two, and the inner wall of the cavity is fixedly connected with a partition.

[0007] According to the above technical solution, the locking assembly includes a knob, the outer wall of the knob is rotatably connected to the second housing via a bearing, and a slide plate 1 is fixedly connected to one side of the knob close to the base.

[0008] According to the above technical solution, the inner wall of the slide groove one is fixedly connected with an elastic component one, the movable end of the elastic component one is fixedly connected with a right-angle plate, the outer wall of the right-angle plate is movably connected to the slide groove one, the side of the right-angle plate away from the elastic component one is fixedly connected with a limiting head, the end of the right-angle plate one away from the limiting head is fixedly connected with a slider one, the outer wall of the slider one is movably connected to the slide groove plate one, after the auxiliary component pushes the silencer net into the equipment, the limiting head will be embedded in the fixed groove to automatically fix the silencer net to ensure the fixing effect of the equipment on the silencer net, and when the silencer net needs to be replaced, only the knob needs to be rotated to drive the limiting head to be pulled out of the fixed groove to release the fixation of the silencer net.

[0009] According to the above technical solution, the silencer assembly includes a silencer net, the outer wall of which is movably connected to the movable groove, a fixing groove is provided on the side of the silencer net away from the base, the fixing groove is used to embed a limiting head and lock the position of the silencer net, and a positioning port is provided at the bottom of the silencer net, the positioning port is used to embed a locking head, and when the silencer net needs to be removed from the device, the locking head is embedded in the positioning port, so that the silencer net and the second shell can move together.

[0010] According to the above technical solution, the auxiliary component includes an annular plate, the outer wall of the annular plate is fixedly connected to the cavity, the inner wall of the annular plate is movably connected with a movable component, the inner wall of the annular plate is fixedly connected with a connecting plate 1, the inner wall of the annular plate is fixedly connected with an elastic component 2, the end of the elastic component 2 away from the annular plate is fixedly connected with a positioning column, the outer wall of the positioning column is movably connected with a connecting plate 1, and the front and rear ends of the annular plate are fixedly connected with connecting blocks.

[0011] According to the above technical solution, the inner wall of the connecting block located at the rear side is fixedly connected with an elastic component three, the end of the elastic component three away from the connecting block is fixedly connected with a connecting plate two, the end of the connecting plate two away from the elastic component three is fixedly connected with a sliding column one, the outer wall of the sliding column one is movably connected with a slider two, the top of the connecting block located at the rear side is fixedly connected with the slider two, the end of the sliding column one away from the connecting plate two is fixedly connected with a connecting head one, the inner wall of the connecting head one is rotatably connected with a connecting plate three via a bearing, and the end of the connecting plate three away from the connecting head one is rotatably connected with the slider three via a bearing. The top of the slider three is fixedly connected with an elastic component four, the top of the elastic component four is fixedly connected with a locking head, the outer wall of the slider three is movably connected with a slide plate two, the bottom of the slide plate two is fixedly connected to the connecting block, and the top of the slide plate two is fixedly connected to the shell two. When the movable component is pushed backward, the locking head will be driven to extend from the through hole two and embedded in the positioning hole of the silencer net. In this way, when the shell two is pulled, the silencer net will also move together driven by the locking head, so that the auxiliary component can pull the silencer net out of the device, avoiding the situation that the device cannot effectively pull out the silencer net.

[0012] The cam is connected with the sliding panel and the sliding panel is connected with the sliding panel to the outer wall of the sliding panel, and the sliding panel is connected with the sliding panel to the outer wall of the sliding panel.

[0013] The movable component comprises a slider five, the outer wall of the slider five is movably connected to the annular plate, and the end of the slider five away from the annular plate is fixedly connected to a connecting column, the outer wall of the slider five is provided with a sliding groove three, and the outer wall of the slider five is also provided with a positioning hole. When the position of the movable component is at the far left or right side, the positioning column will be embedded in the positioning hole to fix the position of the movable component to ensure that the auxiliary component will not fail because the movable component no longer applies pressure. The end of the connecting column close to the slider five is fixedly connected to an elastic component six, and the end of the elastic component six away from the connecting column is fixedly connected to a U-shaped plate. When the movable component needs to be moved, it is necessary to press down the U-shaped plate first to push the positioning column out of the positioning hole through the extrusion column, and then move the movable component. The inner wall of the U-shaped plate is fixedly connected to a connecting rod, and the outer wall of the connecting rod is movably connected to the sliding groove three, and the outer wall of the connecting rod is fixedly connected to the extrusion column, and the extrusion column passes through the sliding groove three and extends into the positioning hole.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The present invention provides a movable mechanism, so when the staff replaces the silencer net, there is no need to disassemble the housing of the equipment. They only need to put the silencer net into the housing through the movable plate and adjust it with the auxiliary components, and then push the new silencer net into the equipment. The operation is convenient, the replacement process is reduced, and the work efficiency is improved.

[0015] 2. The present invention provides an auxiliary component. When the staff needs to replace the silencer net, the movable component is moved forward, so that a forward thrust can be applied to the silencer net, allowing the silencer net to extend a certain distance from the outer shell 2, ensuring that the silencer net can be fixed on the locking component, thereby ensuring the effect of replacing the silencer net.

[0016] 3. The present invention sets an auxiliary component. When the staff needs to take out the silencer net in the equipment, the movable component is moved backward. At this time, the locking head will extend from the through hole 2. When the shell 2 is moved into the interior of the equipment, the locking head will be embedded in the positioning port, so that the auxiliary component can pull the silencer net out of the equipment, avoiding the situation that the equipment cannot effectively pull out the silencer net.

[0017] 4. The present invention is provided with a locking component. After the auxiliary component pushes the silencer net into the device, the locking component will automatically fix the silencer net to ensure the fixing effect of the device on the silencer net. When the silencer net needs to be replaced, it is only necessary to rotate the knob to release the fixation of the silencer net. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a sectional view of the overall structure of the present invention; Figure 3 is a cross-sectional view of the external structure of the present invention; Figure 4 is a schematic diagram of a locking assembly of the present invention; Figure 5 is a schematic diagram of a muffler assembly of the present invention; Figure 6 is a schematic diagram of the mobile mechanism of the present invention; Figure 7 is a cross-sectional view of the mobile mechanism of the present invention; Figure 8 is a schematic diagram of the auxiliary components of the present invention; Fig. 9 is a schematic diagram of the bottom of the auxiliary component of the present invention; Fig.10 is a schematic diagram of the active components of the present invention; Fig.11 is a cross-sectional view of the movable assembly of the present invention; In the figure: 1, base; 101, push rod; 102, shell 1; 103, discharge pipe; 104, slide slot 1; 105, slide slot 2; 11, locking component; 111, knob; 112, slide slot plate 1; 113, elastic component 1; 114, right angle plate; 115, limiting head; 116, slider 1; 12, silencer component; 121, silencer net; 122, positioning port; 123, fixed slot; 2, moving mechanism; 201, shell 2; 202, movable plate; 203, notch; 204, movable slot; 205, through hole 1; 206, through hole 2; 207, cavity; 208, partition; 21, auxiliary component; 211, annular plate; 212, connecting plate 1; 213, connecting block; 214, elastic component 2; 21 5. Positioning column; 216. Elastic component three; 217. Connecting plate two; 218. Sliding column one; 219. Sliding block two; 2110. Connecting head one; 2111. Connecting plate three; 2112. Sliding groove plate two; 2113. Sliding block three; 2114. Elastic component four; 2115. Locking head; 2116. Elastic component five; 2117. Connecting plate four; 2118. Sliding column two; 2119. Sliding block four; 2120. Connecting plate five; 2121. Sliding column three; 2122. Pushing column; 2123. Spring; 22. Movable component; 221. Sliding block five; 222. Connecting column; 223. Sliding groove three; 224. Elastic component six; 225. U-shaped plate; 226. Positioning hole; 227. Connecting rod; 228. Extrusion column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1: See Figure 1-Figure 5 The present invention provides a technical solution: a plate-type muffler with adjustable flow area, comprising a base 1, a push rod 101 fixedly connected to the outer wall of the base 1, a shell 102 fixedly connected to the front end of the base 1, a discharge pipe 103 fixedly connected to the top of the shell 102, a slide groove 104 opened on the inner wall of the shell 102, a slide groove 2 105 opened on the side of the shell 102 close to the base 1, a locking component 11 fixedly connected to the inner wall of the slide groove 104, and a muffler component 12 movably connected to the inner wall of the slide groove 2 105, and further comprising: The locking assembly 11 includes a knob 111, the outer wall of the knob 111 is rotatably connected to the housing 201 through a bearing, a side of the knob 111 close to the base 1 is fixedly connected to a slide plate 112, the inner wall of the slide 104 is fixedly connected to an elastic assembly 113, the movable end of the elastic assembly 113 is fixedly connected to a right-angle plate 114, the outer wall of the right-angle plate 114 is movably connected to the slide 104, and a side of the right-angle plate 114 away from the elastic assembly 113 is fixedly connected to a limiting head 115, and the right-angle plate 11 The end away from the limiting head 115 is fixedly connected with a slider 116, and the outer wall of the slider 116 is movably connected with the slide plate 112. When the device sends a new silencing net 121 into the housing 102, the limiting head 115 will be released from the silencing net 121 and move toward the middle under the pressure of the silencing net 121 until the limiting head 115 reaches the fixing groove 123. The elastic component 113 will push the limiting head 115 into the fixing groove 123 through the right-angle plate 114 to complete the fixing of the silencing net 121.

[0021] The silencer assembly 12 includes a silencer net 121 , the outer wall of which is movably connected to the movable groove 204 , a fixing groove 123 is provided on the side of the silencer net 121 away from the base 1 , and a positioning opening 122 is provided at the bottom of the silencer net 121 .

[0022] The working principle of this embodiment is as follows: when the silencer net 121 needs to be replaced, the mobile mechanism 2 is completely pushed into the shell 102 through the push rod 101, so that the silencer net 121 is completely embedded in the mobile mechanism 2, and then the rotating knob 111 drives the slide plate 112 to rotate, and the rotating slide plate 112 will drive the right-angle plate 114 to move toward the middle through the slider 116, which makes the limiting head 115 withdrawn from the fixing groove 123, canceling the fixation of the silencer net 121, and then the push rod 101 is started again to withdraw the mobile mechanism 2 from the shell 102, completing the disassembly of the silencer net 121.

[0023] Example 2: Based on Example 1, please refer to Figure 6-Figure 11 , the moving mechanism 2 includes a shell 201, the outer wall of the shell 201 is movably connected to the slide groove 105, the end of the push rod 101 away from the base 1 is fixedly connected to the shell 201, the top of the shell 201 is rotatably connected with a movable plate 202 through a bearing, the front end of the shell 201 is provided with a movable groove 204, the outer wall of the shell 201 is provided with a notch 203, the interior of the shell 201 is provided with a cavity 207, the inner wall of the cavity 207 is fixedly connected with an auxiliary component 21, the inner wall of the shell 201 is provided with a through hole 205, the inner wall of the shell 201 is also provided with a through hole 206, and the inner wall of the cavity 207 is fixedly connected with a partition 208.

[0024] The auxiliary component 21 includes an annular plate 211, the outer wall of the annular plate 211 is fixedly connected to the cavity 207, the inner wall of the annular plate 211 is movably connected to the movable component 22, the inner wall of the annular plate 211 is fixedly connected to the connecting plate 1 212, the inner wall of the annular plate 211 is fixedly connected to the elastic component 214, the end of the elastic component 214 away from the annular plate 211 is fixedly connected to the positioning column 215, the outer wall of the positioning column 215 is movably connected to the connecting plate 1 212, when the movable component 22 moves, the slider 5 221 will first squeeze the positioning column 215 to move backward, until the positioning hole 226 at the bottom of the slider 5 221 coincides with the positioning column 215, the positioning column 215 will be embedded into the positioning column 215 under the action of the elastic component 214. The position of the movable component 22 is locked in the positioning hole 226, the front and rear ends of the annular plate 211 are fixedly connected to the connecting block 213, the inner wall of the rear connecting block 213 is fixedly connected to the elastic component three 216, the end of the elastic component three 216 away from the connecting block 213 is fixedly connected to the connecting plate two 217, the end of the connecting plate two 217 away from the elastic component three 216 is fixedly connected to the sliding column one 218, the outer wall of the sliding column one 218 is movably connected to the sliding block two 219, the top of the rear connecting block 213 is fixedly connected to the sliding block two 219, the end of the sliding column one 218 away from the connecting plate two 217 is fixedly connected to the connecting head one 2110, the inner wall of the connecting head one 2110 is rotatably connected to the connecting plate three 2111 through a bearing, and the connecting plate three 2 The end of 111 away from the connecting head 1 2110 is rotatably connected with a slider 3 2113 through a bearing, the top of the slider 3 2113 is fixedly connected with an elastic component 4 2114, the top of the elastic component 4 2114 is fixedly connected with a locking head 2115, the outer wall of the slider 3 2113 is movably connected with a slide plate 2112, the bottom of the slide plate 2112 is fixedly connected to the connecting block 213, the top of the slide plate 2112 is fixedly connected to the shell 201, the inner wall of the front connecting block 213 is fixedly connected with an elastic component 5 2116, the end of the elastic component 5 2116 away from the connecting block 213 is fixedly connected with a connecting plate 4 2117, and the side of the connecting plate 4 2117 away from the elastic component 5 2116 is fixedly connected with a sliding column 211 8. The outer wall of the sliding column 2118 is movably connected with the sliding block 4 2119, and the outer wall of the sliding block 4 2119 is fixedly connected to the connecting block 213. The outer wall of the sliding column 2118 is movably connected to the partition 208. The end of the sliding column 2118 away from the connecting plate 4 2117 is fixedly connected to the connecting plate 5 2120. The end of the connecting plate 5 2120 away from the sliding column 2118 is movably connected with the sliding column 3 2121. The end of the sliding column 3 2121 away from the connecting plate 5 2120 is fixedly connected with the pushing column 2122. The outer wall of the sliding column 3 2121 is sleeved with a spring 2123, and one end of the spring 2123 is fixedly connected to the pushing column 2122. The end of the spring 2123 away from the pushing column 2122 is fixedly connected to the connecting plate 5 2120.

[0025] The movable component 22 includes a slider 5 221, the outer wall of the slider 5 221 is movably connected to the annular plate 211, the end of the slider 5 221 away from the annular plate 211 is fixedly connected to a connecting column 222, the outer wall of the slider 5 221 is provided with a sliding groove 3 223, the outer wall of the slider 5 221 is also provided with a positioning hole 226, the end of the connecting column 222 close to the slider 5 221 is fixedly connected to an elastic component 6 224, the end of the elastic component 6 224 away from the connecting column 222 is fixedly connected to a U-shaped plate 225, and the inner wall of the U-shaped plate 225 is fixedly connected to a connecting rod 227. The outer wall of the connecting rod 227 is movably connected to the slide groove three 223, and the outer wall of the connecting rod 227 is fixedly connected with an extrusion column 228, which passes through the slide groove three 223 and extends to the positioning hole 226. When the position of the movable component 22 needs to be changed, it is necessary to press down the U-shaped plate 225 first. The moving U-shaped plate 225 drives the extrusion column to move toward the positioning hole 226 through the connecting rod 227. The extrusion column immersed in the positioning will push the positioning column 215 out of the positioning hole 226, so that the movable component 22 is no longer restricted by the positioning column 215, and the lock on the movable component 22 is released.

[0026] The working principle of this embodiment is as follows: when the silencer net 121 needs to be replaced, the movable component 22 is first driven to move backward, and as the movable component 22 moves, an external force is applied to the connecting plate 217, driving the sliding column 1 218 to move, and the moving sliding column 1 218 drives the sliding block 3 2113 to move upward along the slide plate 2112 through the connecting head and the connecting plate 3 2111, and the moving slide plate drives the locking head 2115 to extend out of the through hole 206 through the elastic component 4 2114, and then the shell 201 is inserted into the shell 1 102 through the push rod 101. During the movement of the shell 201, the silencer net 121 will be embedded into the shell 201 from the movable groove 204, and when the silencer net 121 moves, it will first squeeze the locking head 2115 to move it downward until the positioning port 122 and the locking head 2115 are at the same position, locking. The head 2115 will be embedded in the positioning port 122 under the push of the elastic component four 2114, that is, the silencing net 121 is fixed in the shell two 201, and then the shell two 201 is pulled out by the push rod 101, and the movable plate 202 is opened to replace the silencing plate. After the replacement is completed, the movable component 22 is pushed to the front end. At this time, the movable component 22 no longer applies pressure to the connecting plate two 217, but applies pressure to the connecting plate four 2117, driving the connecting plate four 2117 to move. The moving connecting plate four 2117 drives the pushing column 2122 to extend from the through hole one 205 through the sliding column two 2118, the connecting plate five 2120, and the sliding column three 2121, so that the silencing net 121 extends a distance from the shell two 201, so that the silencing net 121 can better embed the limiting head 115 into the fixing groove 123 to avoid unhooking.

[0027] 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.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A plate-type silencer with adjustable flow area, comprising a base (1), an outer wall of the base (1) being fixedly connected to a push rod (101), a front end of the base (1) being fixedly connected to a shell 1 (102), a top of the shell 1 (102) being fixedly connected to a discharge pipe (103), an inner wall of the shell 1 (102) being provided with a slide groove 1 (104), a side of the shell 1 (102) close to the base (1) being provided with a slide groove 2 (105), an inner wall of the slide groove 1 (104) being fixedly connected to a locking component (11), and an inner wall of the slide groove 2 (105) being movably connected to a silencer component (12), characterized in that: Also includes: A moving mechanism (2), the moving mechanism (2) comprising a second shell (201), an end of the push rod (101) away from the base (1) being fixedly connected to the second shell (201), an outer wall of the second shell (201) being movably connected to the second slide groove (105), a top of the second shell (201) being rotatably connected to a movable plate (202) via a bearing, a front end of the second shell (201) being provided with a movable groove (204), an outer wall of the second shell (201) being provided with a notch (203), an interior of the second shell (201) being provided with a cavity (207), an inner wall of the cavity (207) being fixedly connected to an auxiliary component (21), an inner wall of the second shell (201) being provided with a through hole (205), an inner wall of the second shell (201) being provided with a through hole (206), and an inner wall of the cavity (207) being fixedly connected to a partition (208).

2. A plate-type muffler with adjustable flow area according to claim 1, characterized in that: The locking assembly (11) comprises a knob (111), the outer wall of which is rotatably connected to the second housing (201) via a bearing, and a first slide plate (112) is fixedly connected to a side of the knob (111) close to the base (1).

3. A plate-type muffler with adjustable flow area according to claim 2, characterized in that: The inner wall of the slide groove 1 (104) is fixedly connected to an elastic component 1 (113), the movable end of the elastic component 1 (113) is fixedly connected to a right-angle plate (114), the outer wall of the right-angle plate (114) is movably connected to the slide groove 1 (104), the side of the right-angle plate (114) away from the elastic component 1 (113) is fixedly connected to a limiting head (115), the end of the right-angle plate (114) away from the limiting head (115) is fixedly connected to a slider 1 (116), and the outer wall of the slider 1 (116) is movably connected to the slide groove plate 1 (112).

4. The plate-type muffler with adjustable flow area according to claim 1, characterized in that: The silencer assembly (12) comprises a silencer net (121), the outer wall of the silencer net (121) being movably connected to the movable groove (204), a fixing groove (123) being provided on a side of the silencer net (121) away from the base (1), and a positioning opening (122) being provided at the bottom of the silencer net (121).

5. The plate-type muffler with adjustable flow area according to claim 1, characterized in that: The auxiliary component (21) comprises an annular plate (211), the outer wall of the annular plate (211) is fixedly connected to the cavity (207), the inner wall of the annular plate (211) is movably connected to a movable component (22), the inner wall of the annular plate (211) is fixedly connected to a connecting plate 1 (212), the inner wall of the annular plate (211) is fixedly connected to an elastic component 2 (214), one end of the elastic component 2 (214) away from the annular plate (211) is fixedly connected to a positioning column (215), the outer wall of the positioning column (215) is movably connected to the connecting plate 1 (212), and the front and rear ends of the annular plate (211) are fixedly connected to connecting blocks (213).

6. A plate-type muffler with adjustable flow area according to claim 5, characterized in that: The inner wall of the connecting block (213) located at the rear side is fixedly connected to an elastic component three (216), one end of the elastic component three (216) away from the connecting block (213) is fixedly connected to a connecting plate two (217), one end of the connecting plate two (217) away from the elastic component three (216) is fixedly connected to a sliding column one (218), the outer wall of the sliding column one (218) is movably connected to a sliding block two (219), the top of the connecting block (213) located at the rear side is fixedly connected to the sliding block two (219), and one end of the sliding column one (218) away from the connecting plate two (217) is fixedly connected to a connecting head one (2110).

7. A plate-type muffler with adjustable flow area according to claim 6, characterized in that: The inner wall of the connector one (2110) is rotatably connected to a connector plate three (2111) via a bearing; the end of the connector plate three (2111) away from the connector one (2110) is rotatably connected to a slider three (2113) via a bearing; the top of the slider three (2113) is fixedly connected to an elastic component four (2114); the top of the elastic component four (2114) is fixedly connected to a locking head (2115); the outer wall of the slider three (2113) is movably connected to a slide plate two (2112); the bottom of the slide plate two (2112) is fixedly connected to the connector block (213); and the top of the slide plate two (2112) is fixedly connected to the housing two (201).

8. The plate-type muffler with adjustable flow area according to claim 7, characterized in that: The inner wall of the connecting block (213) located at the front side is fixedly connected to an elastic component five (2116), one end of the elastic component five (2116) away from the connecting block (213) is fixedly connected to a connecting plate four (2117), the side of the connecting plate four (2117) away from the elastic component five (2116) is fixedly connected to a sliding column two (2118), the outer wall of the sliding column two (2118) is movably connected to a sliding block four (2119), the outer wall of the sliding block four (2119) is fixedly connected to the connecting block (213), the outer wall of the sliding column two (2118) is movably connected to the partition (208), and the sliding column two (2118) is fixedly connected to the connecting block (213), the outer wall of the sliding column two (2118) is movably connected to the partition (208), and the sliding column two (2118) is fixedly connected to the connecting block (213), and the outer wall of the sliding column two (2118) is movably connected to the partition (208). 118) One end away from the connecting plate four (2117) is fixedly connected to the connecting plate five (2120), one end of the connecting plate five (2120) away from the sliding column two (2118) is movably connected to the sliding column three (2121), one end of the sliding column three (2121) away from the connecting plate five (2120) is fixedly connected to the pushing column (2122), the outer wall of the sliding column three (2121) is provided with a spring (2123), one end of the spring (2123) is fixedly connected to the pushing column (2122), and one end of the spring (2123) away from the pushing column (2122) is fixedly connected to the connecting plate five (2120).

9. The plate-type muffler with adjustable flow area according to claim 8, characterized in that: The movable component (22) comprises a slider five (221), the outer wall of the slider five (221) is movably connected to the annular plate (211), the end of the slider five (221) away from the annular plate (211) is fixedly connected to a connecting column (222), the outer wall of the slider five (221) is provided with a sliding groove three (223), the outer wall of the slider five (221) is also provided with a positioning hole (226), the end of the connecting column (222) close to the slider five (221) is fixedly connected to an elastic component six (224), and the end of the elastic component six (224) away from the connecting column (222) is fixedly connected to a U-shaped plate (225).

10. The plate-type muffler with adjustable flow area according to claim 9, characterized in that: The inner wall of the U-shaped plate (225) is fixedly connected to a connecting rod (227), the outer wall of the connecting rod (227) is movably connected to the third slide groove (223), the outer wall of the connecting rod (227) is fixedly connected to an extrusion column (228), and the extrusion column (228) passes through the third slide groove (223) and extends into the positioning hole (226).

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