Dual air path alternating lightweight micro particle compact bag dust collector

Abstract

The present invention relates to the technical field of dust removal equipment, specifically a dual-air-path alternating lightweight micro-particle compact bag dust collector, comprising a box body, a top plate fixedly connected to the box body, a partition plate fixedly connected in the box body, two ash hoppers fixedly connected below the box body, two dust removal mechanisms symmetrically arranged on the box body, two air intake pipes symmetrically fixedly connected to the lower side of the box body, a three-way valve 1 connected between the two air intake pipes, a dust gas conveying pipe also connected to the three-way valve 1, a high-pressure gas tank is arranged on the top plate, and two dust cleaning mechanisms are symmetrically arranged in the box body, and the dust cleaning mechanisms are connected to the high-pressure gas tank through a pushing mechanism. In the present invention, the direction of dust-laden gas conveying can be changed by setting the three-way valve 1, and different dust removal mechanisms can be switched to perform filtering work, so that cleaning and replacing the dust filter bag will not affect the normal dust filtration, thereby ensuring the efficiency of dust filtration.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal equipment, in particular to a compact bag dust collector with dual air paths and alternating lightweight micro particles. Background Art

[0002] A bag filter is a dry dust filtration device suitable for capturing fine, dry, non-fibrous dust. Made of textile filter cloth or non-woven felt, the filter bags utilize the filtration properties of the fabric to filter dust-laden air. When dust-laden air enters the bag filter, large, high-density dust particles settle due to gravity and fall into the hopper. Finer dust particles are retained as they pass through the filter material, resulting in purification.

[0003] The bag dust collectors in the prior art mostly use a pulse backwash method to clean the dust filter bags. During the cleaning process, the bag dust collector cannot filter dust, which reduces the dust filtering efficiency. In addition, the cleaning process will cause the dust filter bags to swell and the mesh of the dust filter bags will also expand, reducing the service life of the dust filter bags. Summary of the Invention

[0004] The purpose of the present invention is to provide a compact bag filter with dual alternating air paths for lightweight micro-particles to solve the problems mentioned in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A dual-air-path alternating lightweight micro-particle compact bag dust collector comprises a box body, a top plate is fixedly connected to the box body, a partition plate is fixedly connected in the box body, two ash hoppers are fixedly connected below the box body, two dust removal mechanisms are symmetrically arranged on the box body, two air inlet pipes are symmetrically fixedly connected to the lower side of the box body, a three-way valve 1 is connected between the two air inlet pipes, a dust and gas conveying pipe is also connected to the three-way valve 1, a high-pressure gas tank is arranged on the top plate, and two dust cleaning mechanisms are symmetrically arranged in the box body, the dust cleaning mechanism is connected to the high-pressure gas tank via a pushing mechanism, and the pushing mechanism is connected to the three-way valve 1.

[0006] Preferably, the dust removal mechanism includes telescopic rods symmetrically arranged on both sides of the box body, the telescopic rods are fixedly connected to side panels, the side panels are fixedly connected to mounting plates, nine mounting holes are evenly opened on the mounting plate, the mounting holes are fixedly connected to filter bag frames, the filter bag frames are slidably sleeved with dust filter bags, and the mounting plate is also provided with a clamping assembly for fixing the dust filter bag.

[0007] Preferably, the clamping assembly includes two groups of belt transmission assemblies symmetrically arranged at the lower end of the mounting plate, the belt transmission assembly 1 includes three evenly arranged pulleys 1, and the corresponding two pulleys 1 are located at both ends of the single-row filter bag frame. The mounting plate is also slidably connected with three mounting brackets, and the mounting brackets correspond to the positions of the single-row filter bag frames. Three clamping parts are slidably connected to the mounting brackets, and the clamping parts correspond to the positions of the filter bag frames. Guide rods are provided at both ends of the mounting brackets, and an eccentric annular groove is opened on the pulley 1, and the guide rods are slidably connected in adjacent eccentric annular grooves.

[0008] Preferably, a pulley 2 is provided between the adjacent pulleys 1, and a belt is connected to the pulley 1 and the pulley 2 on the same side. The two corresponding pulleys 2 are fixedly connected to the same rotating shaft, and a rotating handle is rotatably connected to the side panel, and the rotating handle is fixedly connected to the rotating shaft of one of the pulleys 1.

[0009] Preferably, the clamping component includes a clamping block slidably connected to the mounting bracket, two symmetrical clamping blocks are located on both sides of the filter bag frame, a spring 1 is connected between the two symmetrical clamping blocks, two limit rods are symmetrically slidably connected to the clamping block, two baffles are symmetrically fixedly connected to the clamping block, a spring 2 is connected between the limit rod and the baffle, four limit holes are evenly opened around the mounting hole on the mounting plate, and the limit rods are slidably inserted into the limit holes.

[0010] Preferably, the cleaning mechanism includes four guide rods evenly arranged on the inner side surface of the box body, and a lifting bracket is slidably connected to the guide rod on the same side, and three cleaning components are evenly arranged on the lifting bracket, and each cleaning component includes two symmetrically arranged cleaning parts, and the cleaning parts include a sliding bracket, and the sliding bracket is slidably connected to the lifting bracket, and three semicircular brushes corresponding to the position of the filter bag frame are evenly arranged on the sliding bracket, and long plates are provided at both ends of the sliding bracket, and the long plates are fixedly connected to the box body, and parallelogram guide grooves are opened on the long plates, and the ends of the sliding brackets are slidably connected to the parallelogram guide grooves.

[0011] Preferably, three semicircular grooves are evenly provided on the sliding bracket, the semicircular brush is slidably connected to the semicircular groove, the outer side of the semicircular brush is provided with a tooth surface, and three racks are evenly slidably connected to the sliding bracket, the racks are engaged with adjacent tooth surfaces, and the three racks are fixedly connected with a push rod, and two complementary wavy guide plates are fixedly connected to the two symmetrical long plates, and the push rod will abut against the wavy guide plate during the descent process.

[0012] Preferably, the pushing mechanism includes a base support arranged below the lifting bracket, the base support is fixedly connected to the box body, an inflation telescopic tube is connected between the base support and the lifting bracket, the two base support brackets are connected by a pipeline, one of the base supports is connected to the interface of the three-way valve 2 through a pipeline, the high-pressure gas tank is connected to the other interface of the three-way valve 2 through a pipeline, and the last interface of the three-way valve 2 is connected to an exhaust pipe.

[0013] Preferably, the valve cores of the two three-way valves 2 are connected to the valve core of the three-way valve 1 through a belt transmission component 2.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, by setting a three-way valve, the direction of dust-laden gas transportation can be changed, and different dust removal mechanisms can be switched to perform filtering work, so that cleaning and replacing the dust filter bag will not affect the normal dust filtration, thereby ensuring the efficiency of dust filtration.

[0016] 2. In the present invention, the dust cleaning mechanism is set up, and the dust adsorbed on the surface of the dust filter bag can be cleaned by the semicircular brush. During the cleaning process, the semicircular brush can also rotate back and forth, thereby further improving the cleaning effect. The brush cleaning method will not cause the mesh of the dust filter bag to expand, and can effectively ensure the service life of the dust filter bag.

[0017] 3. In the present invention, the clamping mechanism is set up, and the clamping of all dust filter bags can be released at one time by rotating the handle, which saves the time of removing the dust filter bags. At the same time, the new dust filter bag can be fixed by engaging the clamping block, which is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 Schematic diagram of the internal structure of the present invention;

[0020] Figure 3 Schematic diagram of the structure of the dust removal mechanism of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the clamping assembly in the present invention;

[0022] Figure 5 The structure of the dust cleaning mechanism in the present invention is shown as follows Figure 1 ;

[0023] Figure 6 The structure of the dust cleaning mechanism in the present invention is shown as follows Figure 2 ;

[0024] Figure 7The structure of the dust cleaning mechanism in the present invention is shown as follows Figure 3 ;

[0025] Figure 8 It is a structural schematic diagram of the pushing mechanism in the present invention.

[0026] In the figure: 1. Box body; 2. Top plate; 3. Partition plate; 4. Ash hopper; 5. Dust removal mechanism; 501. Telescopic rod; 502. Side plate; 503. Mounting plate; 504. Mounting hole; 505. Filter bag frame; 506. Dust bag; 51. Clamping assembly; 5101. Belt drive assembly 1; 51011. Pulley 1; 51012. Eccentric ring groove; 51013. Pulley 2; 51014. Belt; 5102. Mounting bracket; 5103. Clamping component; 51031. Clamping block; 51032. Spring 1; 51033. Limit rod; 51034. Baffle; 51035. Spring 2; 51036. Limit hole; 5104. Guide rod; 5105 , turning handle; 6. Air inlet pipe; 7. Three-way valve 1; 8. Dust and gas conveying pipe; 9. High-pressure gas tank; 10. Cleaning mechanism; 1001. Guide rod; 1002. Lifting bracket; 101. Cleaning component; 102. Cleaning parts; 10201. Sliding bracket; 10202. Semicircular brush; 10203. Long plate; 10204. Parallelogram guide groove; 10205. Semicircular slide groove; 10206. Tooth surface; 10207. Rack; 10208. Push rod; 10209. Wave-shaped guide plate; 11. Pushing mechanism; 1101. Bottom support; 1102. Inflatable telescopic tube; 1103. Three-way valve 2; 1104. Exhaust pipe; 12. Belt drive component 2. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] See also Figures 1 to 8 , the present invention provides a technical solution:

[0029] A dual-air-path alternating lightweight micro-particle compact bag dust collector comprises a box body 1, a top plate 2 is fixedly connected to the box body 1, a partition plate 3 is fixedly connected in the box body 1, two ash hoppers 4 are fixedly connected below the box body 1, two dust removal mechanisms 5 are symmetrically arranged on the box body 1, two air inlet pipes 6 are symmetrically fixedly connected to the lower side of the box body 1, a three-way valve 7 is connected between the two air inlet pipes 6, a dust gas conveying pipe 8 is also connected to the three-way valve 7, a high-pressure gas tank 9 is provided on the top plate 2, and two dust cleaning mechanisms 10 are symmetrically arranged in the box body 1, the dust cleaning mechanism 10 is connected to the high-pressure gas tank 9 through a pushing mechanism 11, and the pushing mechanism 11 is connected to the three-way valve 7.

[0030] In this embodiment, the dust removal mechanism 5 includes a telescopic rod 501 symmetrically arranged on both sides of the box body 1, and the telescopic rod 501 is fixedly connected to a side panel 502, and the side panel 502 is fixedly connected to a mounting plate 503, and nine mounting holes 504 are evenly opened on the mounting plate 503, and a filter bag frame 505 is fixedly connected in the mounting hole 504, and a dust filter bag 506 is slidably sleeved on the filter bag frame 505, and a clamping assembly 51 for fixing the dust filter bag 506 is also provided on the mounting plate 503.

[0031] In this embodiment, the clamping assembly 51 includes two groups of belt transmission assemblies 5101 symmetrically arranged at the lower end of the mounting plate 503, and the belt transmission assembly 5101 includes three evenly arranged pulleys 51011. The corresponding two pulleys 51011 are located at both ends of the single-row filter bag frame 505. Three mounting brackets 5102 are also slidably connected to the mounting plate 503, and the mounting brackets 5102 correspond to the positions of the single-row filter bag frame 505. Three clamping parts 5103 are slidably connected to the mounting brackets 5102, and the clamping parts 5103 correspond to the positions of the filter bag frame 505. Guide rods 5104 are provided at both ends of the mounting bracket 5102, and an eccentric annular groove 51012 is opened on the pulley 51011. The guide rods 5104 are slidably connected in adjacent eccentric annular grooves 51012.

[0032] In this embodiment, a pulley 2 51013 is provided between the adjacent pulleys 1 51011, and a belt 51014 is connected to the pulley 1 51011 and the pulley 2 51013 on the same side. The corresponding two pulleys 2 51013 are fixedly connected to the same rotating shaft, and a rotating handle 5105 is rotatably connected to the side panel 502, and the rotating handle 5105 is fixedly connected to the rotating shaft of one of the pulleys 1 51011.

[0033] In this embodiment, the clamping component 5103 includes a clamping block 51031 that is slidably connected to the mounting bracket 5102, and the two symmetrical clamping blocks 51031 are located on both sides of the filter bag frame 505. A spring 1 51032 is connected between the two symmetrical clamping blocks 51031. Two limiting rods 51033 are symmetrically slidably connected to the clamping block 51031, and two baffles 51034 are symmetrically fixedly connected to the clamping block 51031. A spring 2 51035 is connected between the limiting rod 51033 and the baffle 51034. Four limiting holes 51036 are evenly opened around the mounting hole 504 on the mounting plate 503, and the limiting rod 51033 is slidably inserted into the limiting hole 51036.

[0034] In this embodiment, the cleaning mechanism 10 includes four guide rods 1001 evenly arranged on the inner side of the box body 1, and a lifting bracket 1002 is slidably connected to the guide rod 1001 on the same side, and three cleaning components 101 are evenly arranged on the lifting bracket 1002. Each cleaning component 101 includes two symmetrically arranged cleaning parts 102, and the cleaning parts 102 include a sliding bracket 10201, and the sliding bracket 10201 is slidably connected to the lifting bracket 1002. Three semicircular brushes 10202 corresponding to the position of the filter bag frame 505 are evenly arranged on the sliding bracket 10201. Long plates 10203 are provided at both ends of the sliding bracket 10201, and the long plates 10203 are fixedly connected to the box body 1. A parallelogram guide groove 10204 is opened on the long plate 10203, and the end of the sliding bracket 10201 is slidably connected to the parallelogram guide groove 10204.

[0035] In this embodiment, three semicircular grooves 10205 are evenly provided on the sliding bracket 10201, the semicircular brush 10202 is slidably connected to the semicircular groove 10205, the outer side of the semicircular brush 10202 is provided with a tooth surface 10206, and three racks 10207 are evenly slidably connected to the sliding bracket 10201. The racks 10207 are engaged with adjacent tooth surfaces 10206, and the three racks 10207 are fixedly connected with a push rod 10208. Two complementary wavy guide plates 10209 are fixedly connected to the two symmetrical long plates 10203, and the push rod 10208 will abut against the wavy guide plate 10209 during the descending process.

[0036] In this embodiment, the pushing mechanism 11 includes a base support 1101 arranged below the lifting bracket 1002, and the base support 1101 is fixedly connected to the box body 1. An inflatable telescopic tube 1102 is connected between the base support 1101 and the lifting bracket 1002. The two base supports 1101 are connected by a pipeline, one of the base supports 1101 is connected to the interface of the three-way valve 1103 through a pipeline, and the high-pressure gas tank 9 is connected to the other interface of the three-way valve 1103 through a pipeline, and the last interface of the three-way valve 1103 is connected to the exhaust pipe 1104.

[0037] In this embodiment, a counterweight block can be installed on the lifting bracket 1002 to ensure that the lifting bracket 1002 and the components thereon can overcome the resistance of the semicircular brush 10202 during cleaning and move downward smoothly. At the same time, the outlet diameter of the exhaust pipe 1104 is small, which can effectively slow down the discharge speed of the air in the inflatable telescopic tube 1102, thereby controlling the descending speed of the lifting bracket 1002 not to be too fast.

[0038] In this embodiment, the valve cores of the two three-way valves 1103 and the valve core of the three-way valve 1 7 are connected via a belt transmission assembly 2 12 .

[0039] In this embodiment, a high-pressure pulse recoil pipe connected to the high-pressure gas tank 9 can be provided on the upper part of the box body 1. After multiple brush cleanings, the dust filter bag 506 can be cleaned more thoroughly by pulse recoil.

[0040] The working process of this dual-air-path alternating lightweight micro-particle compact bag dust collector is as follows:

[0041] S1. Dust-laden gas is transported from the dust conveying pipe 8 into the device. The dust-laden gas enters the box body 1 from the air inlet pipe 6 on one side through the three-way valve 7. The dust in the dust-laden gas is filtered by the dust filter bag 506, and the resulting clean gas is discharged from the opening at the top of the device.

[0042] S2. After a period of filtration, the dust bag 506 is clogged with dust, and the filtration efficiency decreases. At this time, the valve core of the three-way valve 7 is turned to allow the dust-laden gas to enter the box body 1 from the air inlet pipe 6 on the other side, and be filtered by the dust bag 506 in the other dust removal mechanism 5;

[0043] When the valve core of the three-way valve 1 7 rotates, the valve core of the three-way valve 2 1103 is driven to rotate via the belt drive assembly 2 12, so that the inflation telescopic tube 1102 on the dust filter side is connected to the exhaust pipe 1104, and the inflation telescopic tube 1102 on the dust filter side is now connected to the high-pressure gas tank 9.

[0044] When the inflation telescopic tube 1102 is connected to the high-pressure gas tank 9, high-pressure air enters the inflation telescopic tube 1102 through the pipeline, pushing the lifting bracket 1002 and the components thereon to move upward and remain stationary after reaching the top. Due to the guidance of the parallelogram guide groove 10204, the two semicircular brushes 10202 will move closer to each other when they are about to move to the top, and eventually form a ring-shaped brush. The bristles of the brushes will abut the surface of the dust filter bag 506, and the push rod 10208 will also move to a position aligned with the wavy guide plate 10209.

[0045] When the inflatable telescopic tube 1102 is connected to the exhaust pipe 1104, the lifting bracket 1002 and the components connected thereto will move downward under the action of gravity and move to the bottom. When the top rod 10208 abuts against the wavy guide plate 10209, it will drive the rack 10207 to slide back and forth, and the rack 10207 will drive the semicircular brush 10202 to rotate back and forth, thereby enhancing the cleaning effect.

[0046] S3. After filtering for a period of time, when the dust filter bag 506 is clogged with dust again, the valve core of the three-way valve 7 is turned back, and the dust filter bag 506 that has been cleaned is used to filter the dust;

[0047] S4. When the dust filter bag 506 needs to be replaced after being used for a long time, the cleaning mechanism 10 is pushed out of the box body 1 through the telescopic rod 501, and then the rotating handle 5105 is rotated one circle. All the pulleys 51011 will rotate one circle, and under the drive of the eccentric ring groove 51012, the mounting bracket 5102 will move down and then reset. The downward movement of the mounting bracket 5102 will cause the limiting rod 51033 to slide out of the limiting hole 51036, so that all the clamping blocks 51031 are separated under the elastic force of the spring 51032, loosening the clamping of the dust filter bag 506, making it easy to remove the dust filter bag 506. Whenever a new dust filter bag 506 is installed, the clamping blocks 51031 can be pinched to clamp the dust filter bag 506. After all replacements are completed, the cleaning mechanism 10 is sent into the box body 1 to filter dust again.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A compact bag dust collector with alternating dual air paths and lightweight micro particles, comprising a housing (1), characterized in that: The box body (1) is fixedly connected with a top plate (2), the box body (1) is fixedly connected with a partition plate (3), the box body (1) is fixedly connected with two ash hoppers (4) below the box body (1), the box body (1) is symmetrically provided with two dust removal mechanisms (5), the lower side of the box body (1) is symmetrically fixedly connected with two air inlet pipes (6), a three-way valve (7) is connected between the two air inlet pipes (6), the three-way valve (7) is also connected to a dust gas conveying pipe (8), the top plate (2) is provided with a high-pressure gas tank (9), the box body (1) is also symmetrically provided with two dust cleaning mechanisms (10), the dust cleaning mechanisms (10) are connected to the high-pressure gas tank (9) through a pushing mechanism (11), and the pushing mechanism (11) is connected to the three-way valve (7); The dust cleaning mechanism (10) comprises four guide rods (1001) evenly arranged on the inner side of the box body (1), a lifting bracket (1002) is slidably connected to the guide rods (1001) on the same side, and three cleaning components (101) are evenly arranged on the lifting bracket (1002), each of the cleaning components (101) comprises two symmetrically arranged cleaning parts (102), and the cleaning parts (102) comprise a sliding bracket (10201), and the sliding bracket (10201) is slidably connected to the lifting bracket (1002). On the descending bracket (1002), three semicircular brushes (10202) corresponding to the positions of the filter bag frame (505) are evenly arranged on the sliding bracket (10201), and long plates (10203) are provided at both ends of the sliding bracket (10201), and the long plates (10203) are fixedly connected to the box body (1), and parallelogram guide grooves (10204) are opened on the long plates (10203), and the ends of the sliding bracket (10201) are slidably connected in the parallelogram guide grooves (10204); The sliding bracket (10201) is evenly provided with three semicircular grooves (10205), the semicircular brush (10202) is slidably connected to the semicircular grooves (10205), the outer side surface of the semicircular brush (10202) is provided with a tooth surface (10206), the sliding bracket (10201) is evenly slidably connected with three racks (10207), the racks (10207) are engaged with adjacent tooth surfaces (10206), the three racks (10207) are fixedly connected with a push rod (10208), the two symmetrical long plates (10203) are fixedly connected with two complementary wavy guide plates (10209), and the push rod (10208) will abut against the wavy guide plate (10209) during the descending process; The pushing mechanism (11) includes a base (1101) arranged below the lifting bracket (1002), the base (1101) is fixedly connected to the box body (1), an inflatable telescopic tube (1102) is connected between the base (1101) and the lifting bracket (1002), and two bases (1101) are connected through a pipeline, one of the bases (1101) is connected to the interface of the three-way valve 2 (1103) through a pipeline, the high-pressure gas tank (9) is connected to the other interface of the three-way valve 2 (1103) through a pipeline, and the last interface of the three-way valve 2 (1103) is connected to an exhaust pipe (1104); The valve cores of the two three-way valves (1103) are connected to the valve core of the three-way valve (7) via the belt transmission component (12); The dust removal mechanism (5) comprises telescopic rods (501) symmetrically arranged on both sides of the box body (1); the telescopic rods (501) are fixedly connected to side panels (502); the side panels (502) are fixedly connected to mounting plates (503); the mounting plates (503) are evenly provided with nine mounting holes (504); filter bag frames (505) are fixedly connected to the mounting holes (504); a dust bag (506) is slidably sleeved on the filter bag frame (505); and a clamping assembly (51) for fixing the dust bag (506) is further provided on the mounting plate (503); The clamping assembly (51) includes two groups of belt transmission assemblies (5101) symmetrically arranged at the lower end of the mounting plate (503), and the belt transmission assembly (5101) includes three evenly arranged pulleys (51011). The corresponding two pulleys (51011) are located at both ends of the single-row filter bag frame (505). The mounting plate (503) is also slidably connected to three mounting brackets (5102), and the positions of the mounting brackets (5102) and the single-row filter bag frame (505) correspond to each other. The mounting brackets (5102) are slidably connected to three clamping components (5103), and the positions of the clamping components (5103) and the filter bag frame (505) correspond to each other. Guide rods (5104) are provided at both ends of the mounting bracket (5102), and an eccentric annular groove (51012) is provided on the pulley (51011). The guide rods (5104) are slidably connected to adjacent eccentric annular grooves (51012). A pulley 2 (51013) is provided between adjacent pulleys 1 (51011), and a belt (51014) is connected to the pulley 1 (51011) and the pulley 2 (51013) on the same side. The two corresponding pulleys 2 (51013) are fixedly connected to the same rotating shaft, and a rotating handle (5105) is rotatably connected to the side plate (502), and the rotating handle (5105) is fixedly connected to the rotating shaft of one of the pulleys 1 (51011).

2. The double-air-path alternating lightweight micro-particle compact bag dust collector according to claim 1 is characterized by: The clamping component (5103) includes a clamping block (51031) slidably connected to the mounting bracket (5102), two symmetrical clamping blocks (51031) are located on both sides of the filter bag frame (505), a spring 1 (51032) is connected between the two symmetrical clamping blocks (51031), two limiting rods (51033) are symmetrically slidably connected to the clamping block (51031), two baffles (51034) are symmetrically fixedly connected to the clamping block (51031), a spring 2 (51035) is connected between the limiting rod (51033) and the baffle (51034), four limiting holes (51036) are evenly opened around the mounting hole (504) on the mounting plate (503), and the limiting rods (51033) are slidably inserted into the limiting holes (51036).

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