A dust suction device based on high efficiency

Abstract

The present invention discloses a dust suction device based on high efficiency, which relates to the field of sampling of coal-fired boilers. The dust suction device based on high efficiency includes a flue, a dust dropping pipe, a dust suction assembly, an ash storage tank and an ash storage box. Through the dust suction assembly, the fly ash remaining after sampling in the ash storage box can be sucked into the flue through the negative pressure of the system by the dust suction pipe, thereby effectively solving the problem of the treatment of the remaining fly ash. The dust dropping pipe includes an inlet and outlet located on one side of the dust dropping pipe, and a self-locking member is arranged on the inlet and outlet. The dust dropping pipe is fixedly connected to the flue by bolts, and a gate is arranged on the inlet and outlet. The dust suction assembly includes a dust suction pipe that is cooperatively connected to the inlet and outlet, sealing members arranged on both sides of the dust suction pipe, a ball valve fixedly connected to the dust suction pipe by bolts, and a hose fixedly connected to one end of the ball valve.

Description

Technical Field

[0001] The present invention relates to the technical field of sampling of coal-fired boilers, in particular to an ash suction device based on high efficiency. Background Art

[0002] Currently, during the operation of coal-fired units, the carbon content in fly ash is the main indicator of the combustion effect of coal, which has a great impact on the economic operation of coal-fired units. The impact separation fly ash sampling device is generally installed on the horizontal flue at the tail of the boiler. The sampling device includes a bevel, a falling ash pipe, and an ash storage tank. Each time sampling is carried out, there will be a large amount of remaining fly ash in the ash storage tank that needs to be processed separately. Therefore, an ash suction pipe capable of processing the remaining fly ash needs to be provided. Moreover, when not in use, the size of the ash suction pipe will occupy the surrounding space. At the same time, during operation, the ash suction pipe will be unstable due to the existence of negative pressure. Therefore, it is also necessary to optimize the ash suction pipe so that it can be easily disassembled and assembled and its stability can be enhanced. Summary of the Invention

[0003] In view of the problems existing in the above-mentioned ash suction device based on high efficiency, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is how to solve the problems of occupying space when the ash suction pipe is not in use and safety and stability during use.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: An ash suction device based on high efficiency, which includes a flue, one end of the flue is connected to the tail of the boiler, and the other end is connected to an emission chimney;

[0006] A falling ash pipe, including an inlet and outlet located on one side of the falling ash pipe, a self-locking member is provided on the inlet and outlet, the falling ash pipe is fixedly connected to the flue by bolts, and a gate is provided on the inlet and outlet;

[0007] An ash suction assembly, which includes an ash suction pipe connected to the inlet and outlet in a matching manner, sealing members provided on both sides of the ash suction pipe, a ball valve fixedly connected to the ash suction pipe by bolts, and a hose fixedly connected to one end of the ball valve;

[0008] An ash storage tank, including an ash discharge hole provided at the bottom of the tank, the ash storage tank is fixedly connected to the end of the falling ash pipe by bolts; and

[0009] An ash storage box, which is provided directly below the ash storage tank and the hose.

[0010] As a preferred solution of the ash suction device based on high efficiency according to the present invention, wherein: the self-locking member includes an installation groove, a fixed pile, a self-locking plate fixedly connected to the fixed pile through a first spring, and a movable rod slidably matched with the self-locking plate;

[0011] The installation groove is arranged around the periphery of the inlet and outlet, the fixing pile is fixedly arranged inside the installation groove, one end of the movable rod is movably connected to the inner wall of the installation groove, the self-locking plate slides up and down on the inner wall of the installation groove through the sliding columns on both sides, and a groove is arranged inside the fixing pile.

[0012] As a preferred solution of the dust suction device based on high efficiency of the present invention, wherein: a guiding plate is arranged inside the installation groove, the guiding plate is located below the fixing pile, a part of the guiding plate has an inclined angle, and the other part is vertically parallel to the inner wall of the installation groove, and a movable groove for the sealing member to act is arranged inside the installation groove;

[0013] The guiding plate is fixedly connected to the inner wall of the installation groove, and the movable groove extends from the inner wall of the installation groove to the connection part of the dust suction pipe and the dust falling pipe.

[0014] As a preferred solution of the dust suction device based on high efficiency of the present invention, wherein: the self-locking plate includes a sliding groove for cooperating with the movable rod, a butting pile fixedly connected to the end of the self-locking plate, and a clamping arm rotatably cooperating with the self-locking plate and located on one side of the butting pile, and a butting groove inside the butting pile cooperates with a locking column at the end of the dust suction pipe.

[0015] As a preferred solution of the dust suction device based on high efficiency of the present invention, wherein: a first sliding track and a second sliding track are arranged inside the sliding groove, the height of the second sliding track is higher than that of the first sliding track, and one end of the second sliding track close to the end where the first sliding track ends is in a slope shape, while the other end face is a vertical plane.

[0016] As a preferred solution of the dust suction device based on high efficiency of the present invention, wherein: a coil spring is arranged at the connection part of the clamping arm and the self-locking plate, and the initial state of the clamping arm is unfolded along the track of the guiding plate, a limiting plate is also arranged on the clamping arm, one end face of the limiting plate is wedge-shaped, and there is a clamping area between the limiting plate and the butting pile.

[0017] As a preferred solution of the dust suction device based on high efficiency of the present invention, wherein: a fitting groove matching the size and depth of the fixing pile is arranged on the locking column, the locking column includes a first fitting block, a convex block located inside the fitting groove, and a second fitting block fixedly connected to the first fitting block, the end of the convex block is a wedge angle, and a clamping pile is also arranged at the end of the second fitting block;

[0018] The clamping pile is embedded and fitted with the butting groove inside the butting pile.

[0019] As a preferred embodiment of the dust suction device based on high efficiency of the present invention, the following is provided: The seal includes an expansion diaphragm disposed inside the installation groove, a functional pile in abutting cooperation with the expansion diaphragm, and a gasket in pressing cooperation with the functional pile;

[0020] The expansion diaphragm is fixedly installed on the inner wall of the installation groove, with one side thereof contacting the flow path of the fly ash inside the dust suction pipe. The functional pile is fixedly connected to the inner wall of the installation groove through a compression spring, and the gasket is also fixedly connected to the inner wall of the fixed pile through a second spring.

[0021] As a preferred embodiment of the dust suction device based on high efficiency of the present invention, the following is provided: The initial state of the expansion diaphragm is a concave state, and a first wedge-shaped pile is provided at one end of the expansion diaphragm, which is in abutting cooperation with one end of the functional pile.

[0022] As a preferred embodiment of the dust suction device based on high efficiency of the present invention, the following is provided: The other end of the functional pile is also wedge-shaped. A second wedge-shaped pile in abutting cooperation with the other end of the functional pile is provided at one end of the gasket fixedly connected through a second spring. At the same time, a third wedge-shaped pile in abutting cooperation with the convex block is provided on a surface adjacent to the second wedge-shaped pile.

[0023] The beneficial effect of the present invention is that through the cooperation of each component, the dust suction pipe can be effectively and portably installed on the ash discharge pipe, thereby effectively utilizing the space, and at the same time, the stability of the connection of the dust suction pipe can be ensured during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0025] Figure 1 It is a scene diagram of the dust suction device based on high efficiency.

[0026] Figure 2 It is an exploded view of the dust suction device based on high efficiency.

[0027] Figure 3 It is an enlarged view of the P part of the dust suction device based on high efficiency.

[0028] Figure 4 It is a structural diagram of the connection between the dust suction pipe and the ash discharge pipe of the dust suction device based on high efficiency.

[0029] Figure 5This is an enlarged view of point S based on the highly efficient dust collection device.

[0030] Figure 6 This is a diagram showing the internal structure of the self-locking parts of the dust suction device based on high efficiency.

[0031] Figure 7 This is an enlarged view of point Q of the highly efficient dust collection device.

[0032] Figure 8 This is a diagram of the self-locking plate structure of a dust suction device based on high efficiency.

[0033] Figure 9 Schematic diagram of the seal movement of the dust suction device based on high efficiency. Specific implementation methods

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are explained to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, "one embodiment" or "embodiment" as referred to herein refers to a specific feature, structure or characteristic that can be included in at least one implementation of the present invention. The phrase "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0038] Example 1

[0039] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, and this embodiment provides an ash suction device based on high efficiency. The ash suction device based on high efficiency includes a flue A, an ash dropping pipe B, an ash suction assembly 200, an ash storage tank M and an ash storage box H. The fly ash remaining after sampling in the ash storage box H can be sucked into the flue A through the ash suction pipe 201 through the negative pressure of the system, thereby effectively solving the problem of residual fly ash treatment.

[0040] Specifically, flue A, one end of flue A is connected to the tail of the boiler, and the other end is connected to the exhaust chimney.

[0041] Preferably, the ash falling pipe B includes an inlet and outlet X located on one side of the ash falling pipe B, and a self-locking part 100 is provided on the inlet and outlet X. The ash falling pipe B is fixedly connected to the flue A by bolts, and a gate P is provided on the inlet and outlet X. The gate P is always in a closed state when the remaining fly ash is not needed to be processed, and the gate P is opened before the ball valve 203 is opened, and then the ball valve 203 is opened, and then a negative pressure is generated in the ash suction pipe 201 to absorb the remaining fly ash in the ash storage box H.

[0042] Preferably, the ash suction assembly 200 includes an ash suction pipe 201 connected to the inlet and outlet X, seals 202 arranged on both sides of the ash suction pipe 201, a ball valve 203 fixedly connected to the ash suction pipe 201 by bolts, and a hose 204 fixedly connected to one end of the ball valve 203. The hose 204 is retractable and can be held by the staff to suck from various corners of the ash storage box.

[0043] Preferably, the ash storage tank M includes an ash outlet hole G arranged at the bottom of the tank, and the ash storage tank M is fixedly connected to the end of the ash dropping pipe B by bolts.

[0044] Preferably, the ash storage box H is arranged directly below the ash storage tank M and the hose 204.

[0045] During use, firstly, due to normal operation, a large amount of accumulated ash will fall into the ash storage tank M. When it is necessary to sample the fly ash, the ash outlet G is opened to allow the accumulated ash to fall into the ash storage box M. After the sampling is completed, since there is accumulated ash in the ash storage box M, the gate P and the ball valve 203 are opened. At this time, due to the negative pressure, the accumulated ash will fly from the hose 204 into the flue A for discharge. After the accumulated ash is processed, the ash suction pipe 201 can be removed and stored separately.

[0046] Example 2

[0047] Reference Figures 2 to 8 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0048] Specifically, the self-locking member 100 includes an installation groove 101, a fixing post 102, a self-locking plate 104 fixedly connected to the fixing post 102 through a first spring 103, and a movable rod 105 slidably engaged with the self-locking plate 104. The depth of the installation groove 101 can cooperate with the depth of the locking post 201a when the limit cover is pressed down for the second time. The inclination angle of the guiding plate 101a is the same as the angle of the clamping arm 104c in the initial state. When the dust suction pipe 201 is inserted, the clamping post 201a-4 on the second mating block 201a-3 can just be stuck into the groove F of the abutting post 104b. During the continuous insertion process, the clamping arm 104c will gradually straighten along the trajectory of the guiding plate 101a. While the clamping arm 104c is straightening, not only can the clamping arm 104c and the abutting post 104b just wrap and limit the second mating block 201a-3, but at this time the movable rod 105 also just moves to the junction of the first sliding groove 104a-1 and the second sliding groove 104a-2, where there is a groove. Since the first spring 103 is in a stretched state when pressed down, at this time, due to the groove restricting the movable rod 105, the self-locking member 100 will not reset.

[0049] The installation groove 101 is arranged around the periphery of the inlet and outlet X. The fixing post 102 is fixedly arranged inside the installation groove 101. One end of the movable rod 105 is movably connected to the inner wall of the installation groove 101. The self-locking plate 104 slides up and down on the inner wall of the installation groove 101 through the sliding columns D on both sides. A groove F is arranged inside the fixing post 102.

[0050] Preferably, a guiding plate 101a is arranged inside the installation groove 101. The guiding plate 101a is located below the fixing post 102. A part of the guiding plate 101a has an inclination angle, and the other part is vertically parallel to the inner wall of the installation groove 101. An activity groove 101b for the sealing member 202 to act is arranged inside the installation groove 101.

[0051] The guiding plate 101a is fixedly connected to the inner wall of the installation groove 101. The activity groove 101b extends from the inner wall of the installation groove 101 to the connection part of the dust suction pipe 201 and the dust falling pipe B.

[0052] Preferably, the self-locking plate 104 includes a sliding groove 104a cooperating with the movable rod 105, an abutting post 104b fixedly connected to the end of the self-locking plate 104, and a clamping arm 104c rotatably engaged with the self-locking plate 104 on one side of the abutting post 104b. The abutting groove inside the abutting post 104b cooperates with the locking post 201a at the end of the dust suction pipe 201.

[0053] Preferably, a first slideway 104a-1 and a second slideway 104a-2 are arranged inside the chute 104a. The height of the second slideway 104a-2 is higher than that of the first slideway 104a-1. One end of the second slideway 104a-2 close to the end where the first slideway 104a-1 ends is in a slope shape, while the other end face is a vertical face.

[0054] Preferably, a coil spring 104c-1 is arranged at the connection between the clamping arm 104c and the self-locking plate 104. The initial state of the clamping arm 104c is to unfold along the track of the guiding plate 101a. A limiting plate 104c-2 is also arranged on the clamping arm 104c. One end face of the limiting plate 104c-2 is in a wedge shape. There is a clamping area L between the limiting plate 104c-2 and the abutting pile 104b.

[0055] Preferably, a mating groove that matches the size and depth of the fixed pile 102 is arranged on the locking post 201a. The locking post 201a includes a first mating block 201a-1, a convex block 201a-2 located inside the mating groove, and a second mating block 201a-3 fixedly connected to the first mating block 201a-1. The end of the convex block 201a-2 is a wedge angle. A clamping pile 201a-4 is also arranged at the end of the second mating block 201a-3. When the dust suction pipe 201 is inserted into the installation groove 101, the convex block 201a-2 will first squeeze the third wedge-shaped pile 202c-2, so that the sealing gasket 202c is driven to move towards the inner wall of the inlet and outlet X. It should be noted that after the dust suction pipe 201 is inserted, the sealing gasket 202c can wrap the inner wall between the dust suction pipe 201 and the inlet and outlet X, so as to achieve a sealing effect.

[0056] Preferably, the clamping pile 201a-4 is embedded and matched with the abutting groove inside the abutting pile 104b. The sealing member 202 includes an expansion diaphragm 202a arranged inside the installation groove 101, a functional pile 202b that abuts and cooperates with the expansion diaphragm 202a, and a sealing gasket 202c that is squeezed and cooperated with the functional pile 202b;

[0057] The expansion diaphragm 202a is fixedly installed on the inner wall of the installation groove 101. One side of it contacts the flow path of the fly ash inside the dust suction pipe 201. The functional pile 202b is fixedly connected to the inner wall of the installation groove 101 through a compression spring, and the sealing gasket 202c is also fixedly connected to the inner wall of the fixed pile 102 through a second spring 202d. When negative pressure is generated, the internal expansion diaphragm 202a will change from a concave state to a convex state due to the air pressure difference, and then drive the functional pile 202b to squeeze towards the second wedge-shaped pile 202c-1 of the sealing gasket 202c, so that the sealing gasket 202c is driven to move towards the inner wall of the inlet and outlet X again. And since the sealing gasket 202c is compressible, the sealing performance will become stronger and stronger.

[0058] Preferably, the initial state of the expansion diaphragm 202a is a concave state, and a first wedge-shaped pile 202a-1 is provided at one end of the expansion diaphragm 202a, and the first wedge-shaped pile 202a-1 is in abutting cooperation with one end of the functional pile 202b.

[0059] Preferably, the other end of the functional pile 202b is also wedge-shaped. A second wedge-shaped pile 202c-1 that abuts and cooperates with the other end of the functional pile 202b is provided at one end of the gasket 202c fixedly connected by the second spring 202d. At the same time, a third wedge-shaped pile 202c-2 that abuts and cooperates with the bump 201a-2 is provided on the surface adjacent to the second wedge-shaped pile 202c-1.

[0060] When unlocking is required, the staff presses the dust suction pipe 201 again, so that the clamping pile 201a-4 abuts against the abutting pile 201b-2 again at this time, so that the movable rod 201c enters the second slideway 104a-2 and slides in the second slideway 104a-2 until it slides to the initial position of the movable rod 105, that is, the restricted state is released. During the reset process, since the first spring 103 will be contracted at this time, driving the self-locking plate 104 to rise. At the same time, due to the action of the coil spring 104c-1, the clamping arm 104c will also return to the inclined state and will no longer restrict the clamping pile 201a-4, so that the dust suction pipe 201 can be removed. At the same time, the third wedge-shaped pile 202c-2 will no longer be squeezed by the bump 201a-2, so that the gasket 202c returns to its original position. Then the gate P is closed and the sampling process ends.

[0061] It should be noted that all the internally abutted components are fixedly connected to the inner walls of their adjacent fixed components through compression springs, so that when restoring to the initial state, each component can be linked back to the original position through the compression spring.

[0062] During use, when the dust suction pipe 201 is inserted, the clamping pile 201a-4 on the second fitting block 201a-3 can just be inserted into the groove F of the abutting pile 104b. During the continuous insertion process, the clamping arm 104c will gradually straighten along the track of the guide plate 101a. While the clamping arm 104c is straightening, not only can the clamping arm 104c and the abutting pile 104b just wrap and limit the second fitting block 201a-3, but at this time the movable rod 105 also just moves to the junction of the first slideway 104a-1 and the second slideway 104a-2, where there is a groove. Since the first spring 103 is in a stretched state when pressed down, at this time, due to the groove restricting the movable rod 105, the self-locking member 100 will not reset. At the same time, when inserting, the convex block 201a-2 will first squeeze the third wedge-shaped pile 202c-2, so that the sealing gasket 202c is driven to move towards the inner wall of the inlet and outlet X. It should be noted that after the dust suction pipe 201 is inserted, the sealing gasket 202c can wrap the inner wall between the dust suction pipe 201 and the inlet and outlet X, so as to achieve a sealing effect. When negative pressure is generated, the internal expansion diaphragm 202a will, due to the air pressure difference, change from a sunken state to a convex state, and then drive the functional pile 202b to squeeze towards the second wedge-shaped pile 202c-1 of the sealing gasket 202c, so that the sealing gasket 202c is driven to move towards the inner wall of the inlet and outlet X again. And since the sealing gasket 202c is compressible, the sealing performance will become stronger and stronger.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A dust suction device based on high efficiency, characterized in that: include, A flue (A), one end of which is connected to the tail of the boiler and the other end is connected to the exhaust chimney; An ash falling pipe (B) comprises an inlet and outlet (X) located at one side of the ash falling pipe (B), the inlet and outlet (X) being provided with a self-locking member (100), the ash falling pipe (B) being fixedly connected to the flue (A) by bolts, and the inlet and outlet (X) being provided with a gate (P); An ash suction assembly (200) comprising an ash suction pipe (201) connected to the inlet and outlet (X), sealing members (202) arranged on both sides of the ash suction pipe (201), a ball valve (203) fixedly connected to the ash suction pipe (201) by bolts, and a hose (204) fixedly connected to one end of the ball valve (203); An ash storage tank (M) comprising an ash outlet hole (G) arranged at the bottom of the tank, wherein the ash storage tank (M) is fixedly connected to the end of the ash dropping pipe (B) by bolts; and An ash storage box (H), the ash storage box (H) being arranged directly below the ash storage tank (M) and the hose (204); The self-locking member (100) comprises a mounting groove (101), a fixing pile (102), a self-locking plate (104) fixedly connected to the fixing pile (102) via a first spring (103), and a movable rod (105) slidably matched with the self-locking plate (104); The installation groove (101) is arranged around the periphery of the inlet and outlet (X), the fixing pile (102) is fixedly arranged inside the installation groove (101), one end of the movable rod (105) is movably connected to the inner wall of the installation groove (101), the self-locking plate (104) slides up and down on the inner wall of the installation groove (101) through sliding columns (D) on both sides, and a groove (F) is arranged inside the fixing pile (102); A guide plate (101a) is provided inside the installation groove (101), the guide plate (101a) is located below the fixing pile (102), a part of the guide plate (101a) has an inclined angle, and another part is vertically parallel to the inner wall of the installation groove (101), and a movable groove (101b) for the seal (202) to move is provided inside the installation groove (101); the guide plate (101a) is fixedly connected to the inner wall of the installation groove (101), and the movable groove (101b) extends from the inner wall of the installation groove (101) to the connection between the ash suction pipe (201) and the ash dropping pipe (B); The self-locking plate (104) comprises a sliding groove (104a) cooperating with the movable rod (105), a top connection pile (104b) fixedly connected to the end of the self-locking plate (104), and a clamping arm (104c) located on one side of the top connection pile (104b) and rotatably cooperating with the self-locking plate (104), and an abutment groove inside the top connection pile (104b) cooperating with a locking column (201a) at the end of the ash suction pipe (201).

2. The dust suction device based on high efficiency according to claim 1, characterized in that: Inside the chute (104a), a first slideway (104a-1) and a second slideway (104a-2) are provided. The height of the second slideway (104a-2) is higher than that of the first slideway (104a-1). And one end of the second slideway (104a-2) close to the end where the first slideway (104a-1) ends is in a ramp shape, while the other end face is a vertical face.

3. The dust suction device based on high efficiency according to claim 2, characterized in that: At the connection between the clamping arm (104c) and the self-locking plate (104), a torsion spring (104c-1) is provided. And the initial state of the clamping arm (104c) is to unfold along the track of the guiding plate (101a). A limiting plate (104c-2) is also provided on the clamping arm (104c). One end face of the limiting plate (104c-2) is wedge-shaped. There is a clamping area (L) between the limiting plate (104c-2) and the abutting pile (104b).

4. The dust suction device based on high efficiency according to claim 3, characterized in that: On the locking post (201a), a mating groove that matches the size and depth of the fixed post (102) is provided. The locking post (201a) includes a first mating block (201a-1), a convex block (201a-2) located inside the mating groove, and a second mating block (201a-3) fixedly connected to the first mating block (201a-1). The end of the convex block (201a-2) is a wedge angle. A clamping pile (201a-4) is also provided at the end of the second mating block (201a-3); The clamping pile (201a-4) is in an embedded fit with the abutting groove inside the abutting pile (104b).

5. The dust suction device based on high efficiency according to claim 4, characterized in that: The seal (202) includes an expansion diaphragm (202a) provided inside the installation groove (101), a functional pile (202b) in abutting fit with the expansion diaphragm (202a), and a gasket (202c) in extrusion fit with the functional pile (202b); The expansion diaphragm (202a) is fixedly installed on the inner wall of the installation groove (101). One side of it contacts the flow path of the fly ash inside the ash suction pipe (201). The functional pile (202b) is fixedly connected to the inner wall of the installation groove (101) through a compression spring. And the gasket (202c) is also fixedly connected to the inner wall of the fixed post (102) through a second spring (202d).

6. The dust suction device based on high efficiency according to claim 5, characterized in that: The initial state of the expansion diaphragm (202a) is a concave state. And one end of the expansion diaphragm (202a) is provided with a first wedge pile (202a-1), which is in abutting fit with one end of the functional pile (202b).

7. The dust suction device based on high efficiency according to claim 5 or 6, characterized in that: The other end of the functional pile (202b) is also wedge-shaped. On the end of the gasket (202c) fixedly connected through the second spring (202d), a second wedge pile (202c-1) that is in abutting fit with the other end of the functional pile (202b) is provided. At the same time, on the adjacent side of the second wedge pile (202c-1), a third wedge pile (202c-2) that is in abutting fit with the convex block (201a-2) is provided.

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