Waste gas purification equipment for resin synthesis

Abstract

The invention relates to the technical field of gas purification equipment, and particularly discloses waste gas purification equipment for resin synthesis, which comprises a support frame, and further comprises a purification mechanism fixedly mounted at the top of the support frame; and the linkage mechanism is fixedly mounted in the purification mechanism. According to the waste gas purification equipment for resin synthesis, the whole filtering structure is of a quick-release and quick-assembly structure, the difficulty of later maintenance is greatly reduced, and meanwhile, the cover plate and the bottom plate can be detached, so that the difficulty of later cleaning of the equipment is greatly reduced, and meanwhile, the service life of the equipment is prolonged; and meanwhile, sealing of the equipment is automatically completed after installation of the combined ring is completed, the automation degree of the equipment is greatly improved, overall sealing of the combined ring is completed through downward movement of the outer cover, the working stability of the equipment is improved, and meanwhile the problem that the combined ring shifts when vibration is generated during working of the equipment is solved.

Description

Technical Field

[0001] This invention relates to the field of gas purification equipment technology, specifically to a waste gas purification device for resin synthesis. Background Technology

[0002] The resin synthesis process often generates industrial waste gas containing volatile organic compounds, dust, and odorous components. Direct emission of this gas can cause serious harm to the environment and human health. Therefore, equipping the resin synthesis industry with efficient and reliable waste gas purification equipment is of great significance for green production and environmental compliance. It is a key link in ensuring that the production process meets emission standards and achieves sustainable development.

[0003] Existing resin synthesis waste gas purification equipment commonly suffers from problems such as inconvenient disassembly and maintenance of the filter structure, leading to incomplete internal cleaning and affecting its service life and purification efficiency. Simultaneously, the equipment has poor sealing performance, making it prone to gas leakage during operation, and the filter membrane is easily clogged over prolonged use, gradually reducing purification efficiency. Furthermore, existing equipment often lacks automated cleaning and linkage mechanisms, resulting in limited secondary treatment effects and insufficient overall structural stability, making it difficult to achieve efficient and continuous waste gas purification operations. Summary of the Invention

[0004] This invention provides a waste gas purification device for resin synthesis, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a waste gas purification device for resin synthesis, comprising a support frame and further comprising: a purification mechanism fixedly installed on the top of the support frame; and a linkage mechanism fixedly installed inside the purification mechanism; wherein the purification mechanism comprises a primary treatment pipe, the outer surface of which is fixedly connected to the inner surface of the top of the support frame, a connecting ring fixedly connected to the upper surface of the primary treatment pipe, the connecting ring being semi-circular, a secondary treatment pipe fixedly connected to the upper surface of the connecting ring, a base plate fixedly fastened to the bottom of the primary treatment pipe, an air inlet pipe penetrating through the bottom side surface of the primary treatment pipe, and a cover plate fixedly fastened to the top of the secondary treatment pipe, an air outlet pipe penetrating through the upper surface of the cover plate.

[0006] According to one embodiment of the present invention, a combined ring is slidably inserted into the top of the primary processing tube, a breathable plate is fixedly connected to the inner surface of the combined ring, a connecting tube is fixedly connected through the middle of the breathable plate, a filter membrane is fixedly connected to the bottom inner surface of the combined ring, and the inner side of the filter membrane is fixedly connected to the bottom outer surface of the connecting tube, wherein the filter membrane is disposed below the breathable plate.

[0007] According to one embodiment of the present invention, the combined ring includes an outer ring, which is snapped into a connecting ring. A fixing ring is fixedly connected to the inner surface of the middle part of the outer ring. A through hole is reserved on the fixing ring. An inner ring is fixedly connected to the inner surface of the fixing ring. The outer side of the vent plate is fixedly connected to the inner surface of the inner ring.

[0008] According to one embodiment of the present invention, sealing rings are symmetrically fixedly connected to the upper and lower outer surfaces of the inner ring, and the side of the sealing ring away from the inner ring is fixedly connected to the upper and lower inner surfaces of the outer ring, wherein two sealing rings are respectively disposed on the upper and lower sides of the fixed ring.

[0009] According to one embodiment of the present invention, a filling groove is provided on the upper surface of the outer ring, and an extrusion strip is elastically slidably connected in the filling groove, wherein the extrusion strip is configured to be arc-shaped, and the top of the extrusion strip initially protrudes from the outer ring.

[0010] According to one embodiment of the present invention, the outer surfaces of the bottom two sides of the secondary processing tube are provided with sliding grooves, and a sliding rod is fixedly connected in the sliding groove. An outer cover is slidably connected in the sliding groove through the sliding rod, and the top of the outer cover is slidably embedded in the outer surface wall of the secondary processing tube.

[0011] According to one embodiment of the present invention, the linkage mechanism includes a motor, which is fixedly connected to the lower surface of the middle part of the base plate. The output end of the motor is rotatably connected to a first telescopic rod, and a scraper is fixedly sleeved on the outer surface of the output end of the first telescopic rod. The upper surface of the scraper is attached to the lower surface of the filter membrane.

[0012] According to one embodiment of the present invention, a rotating ring is rotatably connected to the inner surface of the middle part of the secondary processing tube, an installation rod is fixedly connected to the inner surface of the rotating ring, a mesh cover is obliquely fixedly connected to the installation rod, a second telescopic rod is fixedly connected to the inner end of the installation rod, and the top of the second telescopic rod is rotatably connected to the lower surface of the middle part of the cover plate.

[0013] According to one embodiment of the present invention, a connecting seat is rotatably connected to the inner surface of the connecting pipe, wherein the connecting seat is magnetic, and slots are formed on the upper and lower outer surfaces of the connecting seat. The output ends of the first telescopic rod and the second telescopic rod are fixedly connected to the locking blocks, and the first telescopic rod and the second telescopic rod are configured as elastic rods. The upper and lower sides of the connecting pipe are symmetrically provided with openings, wherein the openings are positioned directly opposite the connecting ring.

[0014] During operation, when exhaust gas needs purification, it can be introduced into the No. 1 treatment pipe through the inlet pipe. After entering the No. 1 treatment pipe, the exhaust gas is filtered by the filter membrane and then enters the No. 2 treatment pipe through the vent plate. Finally, it is discharged through the outlet pipe on the cover plate. When the filter membrane needs to be repaired or replaced, the outer cover can be pushed upward to move it up along the slide groove on the No. 2 treatment pipe. After the outer cover is moved up, the outer ring is exposed, and the combined ring can be pulled out as a whole for maintenance.

[0015] This invention provides a waste gas purification device for resin synthesis. It has the following beneficial effects: (i) The exhaust gas purification equipment for resin synthesis has a quick-release and quick-installation filter structure, which greatly reduces the difficulty of later maintenance. At the same time, the cover plate and the bottom plate can also be disassembled, which greatly reduces the difficulty of later cleaning of the equipment and extends the working life of the equipment. It also achieves automatic sealing of the equipment after the combined ring is installed, which greatly improves the automation level of the equipment. Furthermore, the overall sealing of the combined ring is completed by moving the outer cover downward, which improves the working stability of the equipment and avoids the problem of displacement of the combined ring when the equipment vibrates during operation.

[0016] (II) The exhaust gas purification equipment used for resin synthesis has elastic telescopic rods No. 1 and No. 2. Initially, both telescopic rods are in a retracted state. After the combined ring is inserted, the connecting seat in the connecting pipe is magnetic. This magnetic attraction causes the output ends of both telescopic rods to approach the connecting seat, thus bringing the scraper closer to the filter membrane. Then, when the exhaust gas begins to be introduced, the motor starts synchronously. Driven by the motor, the first telescopic rod begins to rotate, and finally, the locking block at the end of the first telescopic rod gradually... The first telescopic rod and the connecting seat are gradually engaged with the slot, forming a single unit. As the connecting seat rotates, the second telescopic rod gradually engages with it via the locking block. Finally, the first and second telescopic rods become a single unit through the connection of the connecting seat. At this point, the scraper adheres to the bottom surface of the filter membrane. When the motor starts, it synchronously drives the first and second telescopic rods to rotate. As the first telescopic rod rotates, the scraper rotates to synchronously scrape and clean the bottom surface of the filter membrane, preventing the filter membrane from becoming clogged after prolonged use and causing low purification efficiency.

[0017] (III) The exhaust gas purification equipment used for resin synthesis, when the No. 2 telescopic rod starts to rotate, will drive the mounting rod and the screen to rotate as well. Finally, the gas entering the No. 2 treatment pipe will be agitated, adsorbed and filtered again by the inclined screen, which further improves the purification efficiency of the equipment. When the equipment stops, the opening of the connecting pipe is always facing the connecting ring, and the slot of the connecting seat is also facing the opening. That is, when it is necessary to remove the combined ring, the connecting seat can be gradually separated from the No. 1 telescopic rod and the No. 2 telescopic rod through the opening and the inclined slot. After the connecting seat is separated, the No. 1 telescopic rod and the No. 2 telescopic rod lose the magnetic attraction and begin to retract and reset, which facilitates the overall disassembly and assembly of the combined ring. That is, the No. 1 telescopic rod and the No. 2 telescopic rod are automatically connected when the motor is working, and there is no obstruction when disassembling and assembling the combined ring, which greatly improves the overall structural stability of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the secondary processing tube of the present invention; Figure 3 This is a schematic diagram of the structure of the outer cover of the present invention; Figure 4 This is a schematic diagram of the connecting ring of the present invention; Figure 5 This is a schematic diagram of the card block and its connection structure of the present invention; Figure 6 This is a schematic diagram of the sealing ring structure of the present invention; Figure 7 This is a schematic diagram of the positional structure of the filter membrane of the present invention; Figure 8 This is a schematic diagram of the connector of the present invention.

[0019] In the diagram: 1. Support frame; 2. Purification mechanism; 21. Primary treatment pipe; 22. Connecting ring; 23. Secondary treatment pipe; 24. Base plate; 25. Inlet pipe; 26. Cover plate; 27. Outlet pipe; 28. Combination ring; 29. ​​Ventilation plate; 210. Connecting pipe; 211. Filter membrane; 212. Outer ring; 213. Fixing ring; 214. Inner ring; 215. Sealing ring; 216. Filling groove; 217. Extrusion strip; 218. Slide groove; 219. Slide rod; 220. Outer cover; 3. Linkage mechanism; 31. Motor; 32. Telescopic rod No. 1; 33. Scraper; 34. Rotating ring; 35. Mounting rod; 36. Mesh cover; 37. Telescopic rod No. 2; 38. Connecting seat; 39. Slot; 310. Locking block; 311. Opening. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] First embodiment: as follows Figures 1 to 8 As shown, the present invention provides a technical solution: a waste gas purification device for resin synthesis, including a support frame 1, and further comprising: Purification mechanism 2 is fixedly installed on the top of support frame 1; Linkage mechanism 3 is fixedly installed inside the purification unit 2; The purification mechanism 2 includes a primary treatment pipe 21. The outer surface of the primary treatment pipe 21 is fixedly connected to the top inner surface of the support frame 1. A connecting ring 22 is fixedly connected to the upper surface of the primary treatment pipe 21. The connecting ring 22 is set as a semi-circular ring. A secondary treatment pipe 23 is fixedly connected to the upper surface of the connecting ring 22. A base plate 24 is fixedly fastened to the bottom of the primary treatment pipe 21. An air inlet pipe 25 is passed through the bottom side surface of the primary treatment pipe 21. A cover plate 26 is fixedly fastened to the top of the secondary treatment pipe 23. An air outlet pipe 27 is passed through the upper surface of the cover plate 26.

[0022] A combination ring 28 is slidably inserted into the top of the primary treatment tube 21. A vent plate 29 is fixedly connected to the inner surface of the combination ring 28. A connecting tube 210 is fixedly connected through the middle of the vent plate 29. A filter membrane 211 is fixedly connected to the bottom inner surface of the combination ring 28. The inner side of the filter membrane 211 is fixedly connected to the bottom outer surface of the connecting tube 210. The filter membrane 211 is located below the vent plate 29.

[0023] The combined ring 28 includes an outer ring 212, which is snapped into the connecting ring 22. A fixing ring 213 is fixedly connected to the inner surface of the middle part of the outer ring 212. A through hole is reserved on the fixing ring 213. An inner ring 214 is fixedly connected to the inner surface of the fixing ring 213. The outer side of the vent plate 29 is fixedly connected to the inner surface of the inner ring 214.

[0024] Sealing rings 215 are symmetrically fixedly connected to the upper and lower outer surfaces of the inner ring 214. The side of the sealing ring 215 away from the inner ring 214 is fixedly connected to the upper and lower inner surfaces of the outer ring 212. Two sealing rings 215 are respectively set on the upper and lower sides of the fixed ring 213.

[0025] A filling groove 216 is provided on the upper surface of the outer ring 212. An extrusion strip 217 is elastically slidably connected in the filling groove 216. The extrusion strip 217 is set in an arc shape, and the top of the extrusion strip 217 initially protrudes from the outer ring 212.

[0026] The bottom two sides of the secondary processing tube 23 are provided with sliding grooves 218. A sliding rod 219 is fixedly connected in the sliding groove 218. An outer cover 220 is slidably connected in the sliding groove 218 through the sliding rod 219. The top of the outer cover 220 is slidably embedded in the outer surface wall of the secondary processing tube 23.

[0027] Second embodiment: as follows Figures 1 to 8 As shown, the linkage mechanism 3 includes a motor 31, which is fixedly connected to the lower surface of the middle part of the base plate 24. The output end of the motor 31 is rotatably connected to a telescopic rod 32. A scraper 33 is fixedly sleeved on the outer surface of the output end of the telescopic rod 32. The upper surface of the scraper 33 is attached to the lower surface of the filter membrane 211.

[0028] A rotating ring 34 is rotatably connected to the inner surface of the middle part of the secondary treatment tube 23. An installation rod 35 is fixedly connected to the inner surface of the rotating ring 34. A mesh cover 36 is obliquely fixedly connected to the installation rod 35. A second telescopic rod 37 is fixedly connected to the inner end of the installation rod 35. The top of the second telescopic rod 37 is rotatably connected to the lower surface of the middle part of the cover plate 26.

[0029] A connecting seat 38 is rotatably connected to the inner surface of the connecting pipe 210. The connecting seat 38 is magnetic. The upper and lower outer surfaces of the connecting seat 38 are provided with slots 39. The output ends of the first telescopic rod 32 and the second telescopic rod 37 are fixedly connected with the locking block 310. The first telescopic rod 32 and the second telescopic rod 37 are set as elastic rods. The upper and lower sides of the connecting pipe 210 are symmetrically provided with openings 311, which are positioned directly opposite the connecting ring 22.

[0030] During operation, when exhaust gas needs purification, it can be introduced into the first treatment pipe through the inlet pipe 25. After entering the first treatment pipe, the exhaust gas is filtered by the filter membrane 211 and then enters the second treatment pipe through the vent plate 29. Finally, it is discharged through the outlet pipe 27 on the cover plate 26. When the filter membrane 211 needs maintenance or replacement, the outer cover 220 can be pushed upwards, moving it along the sliding groove 218 on the second treatment pipe. After the outer cover 220 is moved upwards, the outer ring 212 is exposed, and the combined ring 28 can be pulled out as a whole for maintenance. The overall filtration structure of this equipment is a quick-release and quick-install structure, which greatly reduces the difficulty of later maintenance. At the same time, the cover plate 26 and the base plate 24 can also be disassembled, thereby greatly reducing the difficulty of later cleaning of this equipment. This also extends the service life of the equipment. After the combined ring 28 is inserted between the No. 1 and No. 2 processing pipes, as the outer cover 220 moves downward, the top of the outer cover 220 gradually compresses the extrusion strip 217 on the outer ring 212, causing the extrusion strip 217 to move into the filling groove 216 on the outer ring 212. The downward movement of the extrusion strip 217 compresses the filling groove 216, gradually increasing the internal air pressure. The internal cavity of the filling groove 216 is connected to the cavity between the outer ring 212 and the inner ring 214, ultimately delivering air pressure to the cavity between the outer ring 212 and the inner ring 214. This increases the cavity pressure between the outer ring 212 and the inner ring 214, causing the sealing rings 215 on both sides to expand and eventually adhere tightly to the No. 1 processing pipe. The surfaces of the tube and the second processing tube are close to each other, completing the overall seal after the combined ring 28 is installed. This achieves automatic sealing of the equipment after the combined ring 28 is installed, greatly improving the automation level of the equipment. At the same time, the outer cover 220 lowers to complete the overall sealing of the combined ring 28, improving the working stability of the equipment and preventing the combined ring 28 from shifting when the equipment vibrates during operation. The first telescopic rod 32 and the second telescopic rod 37 are elastic. That is, the first telescopic rod 32 and the second telescopic rod 37 are initially in a retracted state. After the combined ring 28 is inserted, the connecting seat 38 in the connecting tube 210 is magnetic. That is, after the combined ring 28 is installed, the first telescopic rod 32 and the second telescopic rod 37 are attracted by magnetic attraction. As the output end of rod 37 approaches the connecting seat 38, the scraper 33 begins to approach the filter membrane 211. Then, as exhaust gas begins to be introduced, motor 31 starts synchronously. Driven by motor 31, the first telescopic rod 32 begins to rotate. Finally, the locking block 310 at the end of the first telescopic rod 32 gradually engages with the locking slot 39 as it rotates, connecting the first telescopic rod 32 and the connecting seat 38 into a single unit. As the connecting seat 38 rotates, the second telescopic rod 37 gradually engages with it via the locking block 310. Ultimately, the first telescopic rod 32 and the second telescopic rod 37 become a single unit through the connection of the connecting seat 38. At this point, the scraper 33 adheres to the bottom surface of the filter membrane 211. Therefore, the start of motor 31 synchronously drives the first telescopic rod 32 and the second telescopic rod 37 to rotate.When the first telescopic rod 32 rotates, the scraper 33 simultaneously scrapes and cleans the bottom surface of the filter membrane 211, preventing clogging of the filter membrane 211 after prolonged use and thus reducing purification efficiency. When the second telescopic rod 37 starts to rotate, it drives the mounting rod 35 and the mesh cover 36 to rotate as well. Finally, the inclined mesh cover 36 further agitates and adsorbs the gas entering the second treatment pipe, further improving the purification efficiency of the equipment. When the equipment stops, the opening 311 of the connecting pipe 210 always faces the connecting ring 22, and the slot 3 of the connecting seat 38... 9 is also directly opposite the opening 311. When the combined ring 28 needs to be removed, the connecting seat 38 can gradually disengage from the first telescopic rod 32 and the second telescopic rod 37 through the inclined slot 39 via the opening 311. After the connecting seat 38 disengages, the first telescopic rod 32 and the second telescopic rod 37 lose their magnetic attraction and begin to retract and reset, facilitating the overall assembly and disassembly of the combined ring 28. This achieves automatic connection of the first telescopic rod 32 and the second telescopic rod 37 when the motor 31 is operating, and also avoids obstruction during the assembly and disassembly of the combined ring 28, significantly improving the overall structural stability of the equipment.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas purification apparatus for resin synthesis comprising a support frame (1), characterized by: Also includes: Purification mechanism (2), the purification mechanism (2) is fixedly installed on the top of the support frame (1); Wherein the purification mechanism (2) includes a primary processing pipe (21), the outer surface of the primary processing pipe (21) is fixedly connected to the inner surface of the top of the support frame (1), the upper surface of the primary processing pipe (21) is fixedly connected with a connecting ring (22), the connecting ring (22) is arranged as a semicircular ring, the upper surface of the connecting ring (22) is fixedly connected with a secondary processing pipe (23), the bottom of the primary processing pipe (21) is fixedly buckled with a bottom plate (24), wherein the bottom side surface of the primary processing pipe (21) is throughly communicated with an air inlet pipe (25), the top of the secondary processing pipe (23) is fixedly buckled with a cover plate (26), the upper surface of the cover plate (26) is throughly fixedly communicated with an air outlet pipe (27).

2. An exhaust gas purification apparatus for a resin synthesis according to claim 1, characterized by: The top of the primary processing pipe (21) is slidingly inserted with a combination ring (28), the inner surface of the combination ring (28) is fixedly connected with a breathable plate (29), the middle part of the breathable plate (29) is fixedly connected with a connecting pipe (210), the bottom inner surface of the combination ring (28) is fixedly connected with a filter membrane (211), the inner side of the filter membrane (211) is fixedly connected to the bottom outer surface of the connecting pipe (210), wherein the filter membrane (211) is arranged below the breathable plate (29).

3. The exhaust gas purification apparatus for resin synthesis according to claim 2, characterized by: The combination ring (28) includes an outer ring (212), the outer ring (212) is interlocked with the connecting ring (22), the middle inner surface of the outer ring (212) is fixedly connected with a fixed ring (213), the fixed ring (213) is reserved with a through hole, the inner surface of the fixed ring (213) is fixedly connected with an inner ring (214), the outer side of the breathable plate (29) is fixedly connected to the inner surface of the inner ring (214).

4. The exhaust gas purification apparatus for resin synthesis according to claim 3, characterized by: The upper and lower outer surfaces of the inner ring (214) are symmetrically fixedly connected with sealing rings (215), one side of the sealing ring (215) away from the inner ring (214) is fixedly connected to the upper and lower inner surfaces of the outer ring (212), wherein the two sealing rings (215) are respectively arranged on the upper and lower sides of the fixed ring (213).

5. The exhaust gas purification apparatus for resin synthesis according to claim 4, characterized by: The upper surface of the outer ring (212) is provided with a filling groove (216), the filling groove (216) is elastically slidingly connected with an extrusion strip (217) upward and downward, wherein the extrusion strip (217) is arranged as an arc shape, and the top of the extrusion strip (217) initially protrudes out of the outer ring (212).

6. The exhaust gas purification apparatus for resin synthesis according to claim 5, characterized by: The bottom two side outer surfaces of the secondary processing pipe (23) are provided with sliding grooves (218), the sliding grooves (218) are fixedly connected with sliding rods (219), wherein the sliding grooves (218) are slidingly connected with an outer cover (220) upward and downward through the sliding rods (219), the top of the outer cover (220) is slidingly embedded in the outer surface wall of the secondary processing pipe (23).

7. The exhaust gas purification apparatus for resin synthesis according to claim 6, characterized by: Also includes: Linkage mechanism (3), the linkage mechanism (3) is fixedly installed in the interior of the purification mechanism (2); Said linkage (3) includes motor (31), motor (31) fixedly connected in the middle of the lower surface of the bottom plate (24), the output end of the motor (31) is rotatably connected with a first telescopic rod (32), the output end of the first telescopic rod (32) is fixedly sleeved with a scraper (33), the upper surface of the scraper (33) is attached to the lower surface of the filter membrane (211).

8. The exhaust gas purification apparatus for resin synthesis according to claim 7, characterized by: The inner surface of the middle of the secondary treatment pipe (23) is rotatably connected with a rotating ring (34), the inner surface of the rotating ring (34) is fixedly connected with a mounting rod (35), the mounting rod (35) is fixedly connected with a mesh cover (36) on the inclined surface, the inner end of the mounting rod (35) is fixedly connected with a second telescopic rod (37), the top of the second telescopic rod (37) is rotatably connected with the middle of the lower surface of the cover plate (26).

9. The exhaust gas purification apparatus for resin synthesis according to claim 8, characterized by: The inner surface of the connecting pipe (210) is rotatably connected with a connecting seat (38), wherein the connecting seat (38) is provided with magnetic, the upper and lower two sides of the outer surface of the connecting seat (38) is provided with a clamping groove (39), the output end of the first telescopic rod (32) and the second telescopic rod (37) is fixedly connected with a clamping block (310), and the first telescopic rod (32) and the second telescopic rod (37) are provided as elastic rods, the upper and lower two sides of the connecting pipe (210) is symmetrically provided with an opening (311), wherein the opening (311) is opposite to the connecting ring (22).

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