Anti-blocking electrostatic precipitator

Abstract

The utility model discloses an anti-blocking electrostatic precipitator, which relates to the technical field of flue gas treatment, comprises a shell and a dust collection electrode, and is characterized in that a vibration component is arranged, a servo motor is controlled to drive an intermittent gear to rotate, and the intermittent gear is intermittently meshed with a rack, so that the dust collection electrode can be driven to periodically shake left and right; the intermittent gear and the rack are meshed and stop rotating, so that the position of the dust collecting electrode can be maintained, the dust collecting electrode is prevented from continuously shaking, the fixing plate is arranged, and the fixing plate can improve the dust collecting effect of the dust collecting electrode when the dust collecting electrode is static; the dust collecting hopper can collect dust shaken off from the dust collecting electrode, a second handle is held by hand, meanwhile, a pressing plate is pressed to drive an inclined plate to completely enter a sliding groove, the second handle can be moved downwards to drive a connecting plate to move downwards till a U-shaped plate is separated from an inserting groove, and the dust collecting hopper completing collection is conveniently disassembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to flue gas treatment technical field especially is related to a prevent blocking electrostatic precipitator. BACKGROUND

[0002] The electrostatic precipitator is the dust-containing gas ionization in high voltage electric field, dust particle or liquid drop is electrified and deposits on the electrode under the electric field force, thereby separating and treating the dust or liquid drop in the gas, when working, high voltage direct current is passed on the two poles of the electrostatic precipitator, and a static electric field sufficient to ionize the gas is maintained between the two poles, when the dust-containing gas enters the electrostatic precipitator and passes through the electric field, a large number of positive and negative ions and electrons are generated and the dust is electrified, and the electrified dust moves to the dust collection pole under the electric field force and deposits on the dust collection pole, thereby achieving the purpose of purification and dust collection, after long-term use of the electrostatic precipitator, the dust accumulated on the dust collection electrode needs to be cleaned to prevent the dust from accumulating too much and causing blockage.

[0003] The utility model discloses a kind of electrostatic precipitators of improved structure as disclosed in authorized announcement No.

[0004] The prior art has the following problems when in use:

[0005] The shell of the device is communicated with a dust collection hopper at the bottom of the dust collection electrode, which can collect dust when the dust collection electrode vibrates. Since the dust collection electrode can sway left and right, flue gas is easily introduced into the dust collection hopper along the gap under the dust collection electrode at the top of the dust collection hopper and then discharged outward along the protective net, thereby reducing the dust collection effect of the dust collection electrode. UTILITY MODEL CONTENTS

[0006] To overcome the deficiencies of the prior art, the utility model provides a prevent blocking electrostatic precipitator to solve the technical problems mentioned in the background.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: a prevent blocking electrostatic precipitator, comprising a shell and a dust collection electrode, the shell is internally mounted with the dust collection electrode;

[0008] The vibration assembly is arranged at the top of the dust collection electrode and can maintain the position of the dust collection electrode when not cleaning dust.

[0009] The fixed plate is slidingly connected to the bottom surface of the dust collection electrode, which can improve the dust collection effect of the dust collection electrode.

[0010] The dust collection assembly is arranged at the bottom of the shell and can collect dust cleaned during dust cleaning.

[0011] As a preferred technical scheme of the utility model, the shell top is provided with a lifting frame, the left and right sides of the shell are provided with an air inlet and an air outlet, the air outlet inner wall is fixedly provided with a protective net, the lifting frame extends into the shell interior and is slidingly connected with the shell, the lifting frame inner side is installed with a filter screen layer and an activated carbon layer, the shell inner wall is fixedly installed with a corona electrode, the corona electrode front and back sides are slidingly connected with the shell inner wall, the shell bottom below the corona electrode is fixedly provided with an inclined chute, and the inclined chute inner side is fixedly connected with a fixed plate.

[0012] As a preferred technical scheme of the utility model, the vibration assembly comprises a servo motor, an intermittent gear, a sliding plate, a first reset spring, a roller and a rack, the shell top surface is fixedly installed with a servo motor, the servo motor output end bottom surface is fixedly provided with an intermittent gear, the intermittent gear outer side is provided with a rack, the rack side surface is fixedly provided with a sliding plate, the sliding plate side surface is fixedly provided with a plurality of first reset springs, and the corona electrode bottom surface four corners are installed with rollers.

[0013] As a preferred technical scheme of the utility model, the servo motor output end penetrates the shell to the shell interior and is rotationally connected with the shell, the intermittent gear outer side is intermittently provided with a sawtooth, the intermittent gear is engaged with the rack through the sawtooth, the sliding plate bottom surface is fixedly connected with the corona electrode, the shell interior top surface is provided with a sliding groove matched with the sliding plate, the sliding plate is slidingly connected with the shell through the sliding groove, the first reset spring one end away from the sliding plate is fixedly connected with the sliding groove inner wall, and the roller is arranged in the inclined chute inner side.

[0014] As a preferred technical scheme of the utility model, the dust collection assembly comprises a connecting plate, an ash collecting hopper, a second handle, a pressing rod, a pressing plate, a lifting plate, a U-shaped plate, an inclined plate, a guide plate and a second reset spring, the shell lower side is provided with an ash collecting hopper, the ash collecting hopper top surface is fixedly provided with a connecting plate, the connecting plate bottom surface is fixedly provided with symmetrical second handles, the connecting plate top surface is fixedly provided with symmetrical U-shaped plates, the U-shaped plate inner side is slidingly connected with a lifting plate, the lifting plate bottom surface is fixedly provided with a pressing rod, the pressing rod bottom surface is fixedly provided with a pressing plate, the shell frame interior is provided with symmetrical second reset springs, one end of the second reset spring is fixedly provided with a guide plate, and the other side of the guide plate is fixedly provided with an inclined plate.

[0015] As a preferred technical scheme of the utility model, the pressing rod penetrates the connecting plate, the second handle and the U-shaped plate and is slidably connected with the connecting plate, the second handle and the U-shaped plate respectively, the housing bottom surface is symmetrically provided with the slot matched with the U-shaped plate, the U-shaped plate is slidably connected with the housing through the slot, the inclined plate bottom surface is an inclined surface, the housing frame body is internally provided with the sliding groove matched with the guide plate, the guide plate is slidably connected with the housing through the sliding groove, and one end of the second reset spring away from the guide plate is fixedly connected with the sliding groove inner wall.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] The utility model discloses a dust collecting electrode is set up vibration subassembly, control servo motor drives intermittent gear rotation and intermittently with rack engagement can drive dust collecting electrode periodicity left and right swing, thereby convenient to shake dust from the dust collecting electrode surface, and the intermittent gear and the rack are engaged and stop rotation can maintain the position of the dust collecting electrode, avoid dust collecting electrode continue to swing, through setting up fixed plate, fixed plate can avoid flue gas along the bottom of dust collecting electrode when the dust collecting electrode is stationary and pass through, thereby improving the dust collecting effect of dust collecting electrode, through setting up dust collecting subassembly, the dust collecting electrode on the dust collecting electrode is collected to the dust collecting electrode on the dust collecting electrode, and the second handle is pressed and the pressing plate is driven to enter the sliding groove completely, and the second handle can be moved downward, and the connecting plate is moved downward, until the U-shaped plate is separated from the slot, convenient to the dust collecting hopper of completing collection is dismantled. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is main structure schematic diagram of the utility model;

[0019] Figure 2 It is main view cross section structure schematic diagram of the utility model;

[0020] Figure 3 It is the utility model Figure 2 It is the utility model

[0021] Figure 4 It is the utility model

[0022] Figure 5 It is the utility model

[0023] Wherein: 1, shell; 2, lifting frame; 3, protective net; 4, servo motor; 5, connecting plate; 6, dust hopper; 7, second handle; 8, compression rod; 9, compression plate; 10, filter screen layer; 11, activated carbon layer; 12, corona electrode; 13, intermittent gear; 14, slide plate; 15, dust collecting electrode; 16, first return spring; 17, roller; 18, chute; 19, fixed plate; 20, lifting plate; 21, U-shaped plate; 22, inclined plate; 23, guide plate; 24, second return spring; 25, rack. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] EMBODIMENT

[0026] Please refer to Figures 1-5 The utility model provides a kind of anti-blocking electrostatic precipitator, including shell 1 and dust collecting electrode 15, shell 1 top is provided with lifting frame 2, lifting frame 2 is inserted into shell 1 inside and is slidably connected with shell 1, shell 1 left and right sides are provided with air inlet and air outlet, air inlet is communicated to the flue gas discharge pipeline of outside, air outlet inner wall is fixedly provided with protective net 3, filter screen layer 10 and activated carbon layer 11 are installed in the inside of lifting frame 2, filter screen layer 10 can filter PM10 etc. Large particles in flue gas, activated carbon layer 11 can adsorb peculiar smell and toxic substances in flue gas, lifting lifting frame 2 drives filter screen layer 10 and activated carbon layer 11 to move outward can be conveniently replaced filter screen layer 10 and activated carbon layer 11, corona electrode 12 is fixedly installed in the inner wall of shell 1, corona electrode 12 is high pressure tungsten wire group, dust collecting electrode 15 is slidably connected between the inner wall of shell 1 between front and back, dust collecting electrode 15 is metal dust collecting pipe frame, controller is installed on the outside of shell 1, corona electrode 12 and dust collecting electrode 15 are electrically connected with the high voltage generator of outside respectively by controller, chute 18 is communicated with the bottom of shell 1 below dust collecting electrode 15, fixed plate 19 is fixedly provided in the inside of chute 18, the top surface of fixed plate 19 is slidably connected with dust collecting electrode 15, fixed plate 19 is tightly attached to the bottom surface of dust collecting electrode 15, so that it can avoid flue gas to pass through along the bottom of dust collecting electrode 15 when dust collecting electrode 15 is stationary, thereby improving the dust collecting effect of dust collecting electrode 15.

[0027] As Figures 1-5As shown, the top of the dust collecting electrode 15 is provided with a vibration assembly, which is composed of a servo motor 4, an intermittent gear 13, a sliding plate 14, a first reset spring 16, a roller 17 and a rack 25. The servo motor 4 is fixedly installed on the top surface of the shell 1 and electrically connected with the controller. The output end of the servo motor 4 penetrates through the shell 1 to the inside of the shell 1 and is rotationally connected with the shell 1. The output end of the servo motor 4 is fixedly provided with the intermittent gear 13. The outer side of the intermittent gear 13 is intermittently provided with sawteeth. The outer side of the intermittent gear 13 is provided with the rack 25. The intermittent gear 13 is engaged with the rack 25 through the sawteeth. The rack 25 is fixedly provided with the sliding plate 14 on the side surface. The bottom surface of the sliding plate 14 is fixedly connected with the dust collecting electrode 15. The top surface of the inside of the shell 1 is provided with a sliding groove matched with the sliding plate 14. The sliding plate 14 is slidingly connected with the shell 1 through the sliding groove. The sliding plate 14 is fixedly provided with a plurality of first reset springs 16 on the side surface. The other end of the first reset spring 16 is fixedly connected with the inner wall of the sliding groove. The roller 17 is installed on the bottom surface of the dust collecting electrode 15. The roller 17 is arranged on the inner side of the inclined groove 18. When the dust collecting electrode 15 moves leftward and rightward, the roller 17 can roll leftward and rightward along the inner side of the inclined groove 18. The servo motor 4 drives the intermittent gear 13 to rotate. When the sawteeth of the intermittent gear 13 are engaged with the rack 25, the rack 25 is driven to move leftward, so as to drive the sliding plate 14 and the dust collecting electrode 15 to move leftward. The first reset spring 16 is elongated. When the sawteeth of the intermittent gear 13 are disengaged from the rack 25, the first reset spring 16 drives the sliding plate 14 to move rightward, so as to drive the rack 25 and the dust collecting electrode 15 to move rightward. After the dust collecting electrode 15 moves back to the original position, the dust collecting electrode 15 continues to move leftward and rightward under the influence of the first reset spring 16 until it is stationary. During the leftward and rightward movement of the dust collecting electrode 15, the sawteeth of the intermittent gear 13 are not in contact with the rack 25. When the dust collecting electrode 15 is stationary, the intermittent gear 13 continues to rotate, so that the sawteeth of the sliding plate 14 are engaged with the rack 25 again. The sawteeth of the intermittent gear 13 are intermittently engaged with the rack 25, so as to drive the dust collecting electrode 15 to periodically move leftward and rightward. The dust on the surface of the dust collecting electrode 15 is shaken off conveniently. The dust is prevented from being blocked on the surface of the dust collecting electrode 15. When the intermittent gear 13 is engaged with the rack 25 and stops rotating, the position of the dust collecting electrode 15 can be maintained, so as to prevent the dust collecting electrode 15 from continuing to move.

[0028] As Figures 1-5As shown, the bottom of the shell 1 is provided with a dust collection assembly, which is composed of a connecting plate 5, an ash collecting hopper 6, a second handle 7, a pressing rod 8, a pressing plate 9, a lifting plate 20, a U-shaped plate 21, an inclined plate 22, a guide plate 23 and a second reset spring 24. The ash collecting hopper 6 is arranged below the shell 1. The top surface of the ash collecting hopper 6 is fixedly provided with the connecting plate 5. The bottom surface of the connecting plate 5 is fixedly provided with symmetric second handles 7. The top surface of the connecting plate 5 is fixedly provided with symmetric U-shaped plates 21. The pressing rod 8 penetrates through the connecting plate 5, the second handle 7 and the U-shaped plate 21 and is in sliding connection with the connecting plate 5, the second handle 7 and the U-shaped plate 21, respectively. The bottom surface of the shell 1 is symmetrically provided with slots matched with the U-shaped plates 21. The U-shaped plates 21 are in sliding connection with the shell 1 through the slots. The inner side of the U-shaped plate 21 is in sliding connection with the lifting plate 20. The bottom surface of the lifting plate 20 is fixedly provided with the pressing rod 8. The bottom surface of the pressing rod 8 is fixedly provided with the pressing plate 9. The shell 1 is internally provided with symmetric second reset springs 24. One end of the second reset spring 24 is fixedly provided with the guide plate 23. The shell 1 is internally provided with a sliding groove matched with the guide plate 23. The guide plate 23 is in sliding connection with the shell 1 through the sliding groove. The end of the second reset spring 24 away from the guide plate 23 is fixedly connected with the inner wall of the sliding groove. The other side of the guide plate 23 is fixedly provided with the inclined plate 22. The bottom surface of the inclined plate 22 is an inclined surface. The ash collecting hopper 6 can collect dust shaken off the dust collecting electrode 15. Holding the second handle 7 and simultaneously pressing the pressing plate 9 can drive the inclined plate 22 to completely enter the sliding groove and move the second handle 7 downward, thereby driving the connecting plate 5 to move downward until the U-shaped plate 21 is separated from the slot, so as to facilitate the disassembly of the ash collecting hopper 6.

[0029] Specifically, when the ash collecting hopper 6 needs to be installed, the U-shaped plate 21 is aligned with and clamped into the slot at the same time. The U-shaped plate 21 moves upward in the slot and contacts the inclined plate 22, thereby driving the inclined plate 22 to move into the sliding groove. The movement of the inclined plate 22 drives the guide plate 23 to move, and the second reset spring 24 is compressed. When the top surface of the U-shaped plate 21 contacts the top surface in the slot, the inclined plate 22 just moves outward and extends into the inner side of the U-shaped plate 21. The top surface of the inclined plate 22 supports the U-shaped plate 21, thereby fixing the position of the ash collecting hopper 6. When the ash collecting hopper 6 needs to be disassembled, the second handle 7 is held and the pressing plate 9 is pressed upward at the same time, thereby driving the pressing plate 9 to move upward. The movement of the pressing plate 9 drives the pressing rod 8 and the lifting plate 20 to move upward. The movement of the lifting plate 20 contacts the inclined plate 22, thereby driving the inclined plate 22 to move into the sliding groove until the inclined plate 22 completely enters the sliding groove. At this time, continuously pressing the pressing plate 9 and moving the second handle 7 downward can drive the U-shaped plate 21 to move downward and separate from the slot, so as to facilitate the disassembly of the ash collecting hopper 6.

[0030] Specific working principle:

[0031] The device is used, the U-shaped plate 21 is aligned with the slot at the same time and is clamped into the slot, the U-shaped plate 21 moves upward in the slot and contacts the inclined plate 22 to drive the inclined plate 22 to move into the sliding groove, the movement of the inclined plate 22 drives the guide plate 23 to move, the second reset spring 24 is compressed, when the top surface of the U-shaped plate 21 contacts the top surface in the slot, the inclined plate 22 just moves outward and extends into the inside of the U-shaped plate 21, the top surface of the inclined plate 22 supports the U-shaped plate 21, thereby fixing the position of the dust collecting hopper 6, when the intermittent gear 13 is engaged with the rack 25 and stops rotating, the position of the dust collecting electrode 15 can be maintained, avoiding the shaking of the dust collecting electrode 15, the fixed plate 19 closely adheres to the bottom surface of the dust collecting electrode 15, which can avoid the flue gas passing through the bottom of the dust collecting electrode 15 when the dust collecting electrode 15 is stationary, thereby improving the dust collecting effect of the dust collecting electrode 15, the gas inlet is connected to the flue gas exhaust pipeline outside the shell 1 to make the flue gas enter the inside of the shell 1, the filter screen layer 10 can filter the PM and other large particles in the flue gas, the activated carbon layer 11 can adsorb odors and toxic substances in the flue gas, the controller starts the corona electrode 12 and the dust collecting electrode 15, the dust collecting electrode 15 can collect dust in the flue gas, and the protective net 3 can prevent foreign matters and flying insects from entering the inside of the shell 1.

[0032] When the dust on the surface of the dust collecting electrode 15 needs to be cleaned, the servo motor 4 drives the intermittent gear 13 to rotate, when the serrations of the intermittent gear 13 are engaged with the rack 25, the rack 25 is driven to move left, thereby driving the sliding plate 14 and the dust collecting electrode 15 to move left, the first reset spring 16 is elongated, when the serrations of the intermittent gear 13 are disengaged from the rack 25, the first reset spring 16 drives the sliding plate 14 to move right, thereby driving the rack 25 and the dust collecting electrode 15 to move right, after the dust collecting electrode 15 moves back to the original position, the dust collecting electrode 15 continues to shake left and right under the influence of the first reset spring 16 until it is stationary, during the shaking of the dust collecting electrode 15 left and right, the serrations of the intermittent gear 13 do not contact the rack 25, when the dust collecting electrode 15 is stationary, the intermittent gear 13 continues to rotate, so that the serrations of the sliding plate 14 are engaged with the rack 25 again, realizing the intermittent engagement of the serrations of the intermittent gear 13 with the rack 25, thereby periodically driving the dust collecting electrode 15 to shake left and right, facilitating the dust on the surface of the dust collecting electrode 15 to shake off, avoiding the dust from being blocked on the surface of the dust collecting electrode 15, the dust collecting hopper 6 can collect the dust shaken off from the dust collecting electrode 15, when the dust collecting hopper 6 needs to be disassembled, the second handle 7 is held and the pressing plate 9 is pressed at the same time to drive the pressing plate 9 to move upward, the movement of the pressing plate 9 drives the pressing rod 8 and the lifting plate 20 to move upward, the movement of the lifting plate 20 contacts the inclined plate 22 to drive the inclined plate 22 to move into the sliding groove, until the inclined plate 22 completely enters the inside of the sliding groove, at this time, the pressing plate 9 is continuously pressed and the second handle 7 is moved downward to drive the U-shaped plate 21 to move downward and disengage from the slot, facilitating the disassembly of the completed dust collecting hopper 6.

[0033] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A kind of anti-blocking electrostatic dust collector, including shell (1) and dust collecting electrode (15), dust collecting electrode (15) is installed inside shell (1), it is characterized in that: Vibration component, vibration component is set on the top of dust collecting electrode (15), vibration component can maintain the position of dust collecting electrode (15) when not carrying out dust cleaning; Fixed plate (19), the fixed plate (19) is slidably connected to the bottom surface of dust collecting electrode (15), and the fixed plate (19) can improve the dust collecting effect of dust collecting electrode (15); Dust collection component, dust collection component is set on the bottom of shell (1), and dust collection component can collect dust cleaned during dust cleaning.

2. A non-clogging electrostatic precipitator according to claim 1, wherein: The top of the shell (1) is provided with a lifting frame (2), and the left and right sides of the shell (1) are provided with an air inlet and an air outlet. The inner wall of the air outlet is fixedly provided with a protective net (3). The lifting frame (2) extends into the shell (1) and is slidably connected with the shell (1). The inner side of the lifting frame (2) is provided with a filter screen layer (10) and an activated carbon layer (11). The inner wall of the shell (1) is fixedly provided with a corona electrode (12). The front and rear sides of the dust collecting electrode (15) are slidably connected with the inner wall of the shell (1). The bottom of the shell (1) is fixedly provided with an inclined chute (18) below the dust collecting electrode (15). The inner side of the inclined chute (18) is fixedly connected with the fixed plate (19).

3. A non-plugging electrostatic precipitator according to claim 2, wherein: The vibration component includes a servo motor (4), an intermittent gear (13), a sliding plate (14), a first return spring (16), a roller (17) and a rack (25). The top surface of the shell (1) is fixedly provided with a servo motor (4). The bottom surface of the output end of the servo motor (4) is fixedly provided with an intermittent gear (13). The outer side of the intermittent gear (13) is provided with a rack (25). The side surface of the rack (25) is fixedly provided with a sliding plate (14). The side surface of the sliding plate (14) is fixedly provided with a plurality of first return springs (16). The bottom surface of the dust collecting electrode (15) is provided with a roller (17).

4. A non-clogging electrostatic precipitator according to claim 3 wherein: The output end of the servo motor (4) extends into the shell (1) and is rotatably connected with the shell (1). The outer side of the intermittent gear (13) is intermittently provided with a sawtooth. The intermittent gear (13) is engaged with the rack (25) through the sawtooth. The bottom surface of the sliding plate (14) is fixedly connected with the dust collecting electrode (15). The inner top surface of the shell (1) is provided with a sliding groove matched with the sliding plate (14). The sliding plate (14) is slidably connected with the shell (1) through the sliding groove. One end of the first return spring (16) away from the sliding plate (14) is fixedly connected with the inner wall of the sliding groove. The roller (17) is arranged in the inner side of the inclined chute (18).

5. The antiplugging electrostatic precipitator of claim 1 wherein: The dust collection assembly comprises a connecting plate (5), an ash collecting hopper (6), a second handle (7), a pressing rod (8), a pressing plate (9), a lifting plate (20), a U-shaped plate (21), an inclined plate (22), a guide plate (23) and a second reset spring (24). The shell (1) is provided below with the ash collecting hopper (6), and the top surface of the ash collecting hopper (6) is fixedly provided with the connecting plate (5). The bottom surface of the connecting plate (5) is fixedly provided with symmetrical second handles (7), and the top surface of the connecting plate (5) is fixedly provided with symmetrical U-shaped plates (21). The inner side of the U-shaped plate (21) is slidably connected with the lifting plate (20), and the bottom surface of the lifting plate (20) is fixedly provided with the pressing rod (8). The bottom surface of the pressing rod (8) is fixedly provided with the pressing plate (9). The shell (1) is provided inside the frame with symmetrical second reset springs (24), one end of the second reset spring (24) is fixedly provided with the guide plate (23), and the other side of the guide plate (23) is fixedly provided with the inclined plate (22).

6. A non-plugging electrostatic precipitator according to claim 5, wherein: The pressing rod (8) penetrates through the connecting plate (5), the second handle (7) and the U-shaped plate (21) and is slidably connected with the connecting plate (5), the second handle (7) and the U-shaped plate (21) respectively. The bottom surface of the shell (1) is symmetrically provided with a slot matched with the U-shaped plate (21), and the U-shaped plate (21) is slidably connected with the shell (1) through the slot. The bottom surface of the inclined plate (22) is an inclined surface. The shell (1) is provided inside the frame with a sliding groove matched with the guide plate (23), and the guide plate (23) is slidably connected with the shell (1) through the sliding groove. One end of the second reset spring (24) away from the guide plate (23) is fixedly connected with the inner wall of the sliding groove.

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