Protective fence with dust removal function for constructional engineering

Abstract

The invention discloses a protective fence with a dust removal function for constructional engineering, and relates to the technical field of protective fences, the protective fence comprises a protective fence mechanism, the protective fence mechanism comprises a fence frame, a hollow seat post is mounted at the right end of the fence frame, the protective fence mechanism further comprises railings, and the seven railings are transversely and slidably mounted on the inner side of the fence frame at equal intervals; the seven handrails are connected through a handrail equidistant control assembly, and the device further comprises a protective fence dust filtering mechanism, a dust filtering net follow-up cleaning mechanism and a supporting and anchoring mechanism; the protective fence with the dust removal function for constructional engineering is convenient to install and arrange, dust can be filtered out through the dust filtering net, once the part, corresponding to the fence frame, of the dust filtering net blocks too much dust, and net holes of the dust filtering net are blocked, the dust filtering net covered with the dust can be wound through the outer winding shaft, the clean dust filtering net wound on the inner winding shaft is released, and the dust removal effect is achieved. The dust filtering net blocking the fence frame can be rapidly replaced, the flow guide dust falling mechanism is arranged, water mist can make contact with dust crossing the fence frame, and the purpose of water mist dust falling is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of guardrails, in particular to a guardrail with a dust removal function for construction projects. Background Art

[0002] Construction engineering guardrails are generally used in urban construction sites. During construction, construction guardrails are needed to separate the construction area to avoid accidental injury to unrelated personnel. The patent with authorization announcement number CN212867121U in the prior art discloses a protective device for construction production, comprising a base plate and a fixing frame, wherein the four corners of the bottom plate are fixedly mounted with universal wheels with brakes, and the four corners of the base plate are provided with threaded holes, threaded rods adapted to the threaded holes are inserted into the threaded holes through threads, and the lower ends of the threaded rods are fixedly mounted with a limit plate, a fixing frame is fixedly mounted above the base plate, a dustproof net is embedded in the middle of the fixing frame, and a first hook is hingedly mounted on an outer wall of one side of the fixing frame, a second hook is hingedly mounted on an outer wall of the other side of the fixing frame, and a diversion pipe is fixedly mounted on the outer wall of the upper portion of the fixing frame, a plurality of water outlet pipes are plugged into the upper end of the plurality of water outlet pipes, and an atomizing nozzle is fixedly mounted on one end of the plurality of water outlet pipes, a fixing block is fixedly mounted on the upper and lower ends of both sides of the fixing frame, and a protective rod is fixedly mounted on one side of the fixing block; Although it has achieved the function of separation protection, its protective rods are all fixed structures, and it is difficult for workers to enter and exit the protective device. In addition, the mesh of the dustproof net will be blocked after long-term use. Although its atomizing nozzle can spray water mist to reduce dust, the dust will still diffuse upward after encountering the dustproof net with blocked mesh. The water mist sprayed by the atomizing nozzle cannot fully contact the diffused dust, resulting in insufficient water mist dust reduction effect. There is still a lot of diffused dust that passes over the top of the protective device and affects the external environment. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a guardrail with dust removal function for construction projects. The railing can move inside the guardrail frame, so that a channel can be opened inside the guardrail frame, which makes it more convenient for workers to enter and exit the guardrail through the channel. When the mesh of the dust filter is blocked, the clean dust filter wrapped on the inner scroll can be released. The arc guide plate guides and gathers the dust diffused toward the upper side, so that the diffused dust is gathered and then meets the water mist, achieving a sufficient dust reduction effect, and can reduce the dust that passes over the top of the guardrail, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a guardrail with a dust removal function for use in construction projects, comprising a guardrail mechanism, the guardrail mechanism comprising a guardrail frame and a hollow seat rod, a vertical hollow seat rod being mounted on the right end of the guardrail frame, the guardrail mechanism further comprising a railing, a railing equidistant control assembly, and a railing deployment locking assembly, seven railings being slidably mounted laterally and equidistantly on the inner side of the guardrail frame, the seven railings being connected by the railing equidistant control assembly, the rightmost railing being fixedly connected to the inner right end of the guardrail frame, and the leftmost railing being connected to the left end front side of the guardrail frame by the railing deployment locking assembly; Also includes: The guardrail dust filter mechanism is installed in the hollow seat rod and on the front side of the guardrail frame, and the left end of the guardrail dust filter mechanism is connected to the leftmost guardrail; The dust filter follow-up cleaning mechanism is installed on the front side of the hollow seat post, and the dust filter follow-up cleaning mechanism is connected to the guardrail dust filter mechanism; The support anchoring mechanism is installed on both sides of the bottom of the fence.

[0005] Furthermore, the railing expansion locking assembly includes a push-pull frame, a bent plate is provided on the front side of the leftmost railing, and the left end of the bent plate is fixedly connected to the push-pull frame. The upper and lower ends of the push-pull frame are respectively provided with two longitudinal grooves, and two longitudinal sliders are respectively slidably connected in the two longitudinal grooves. The front end of each longitudinal slider is connected to the corresponding front end of the longitudinal groove through a compression spring, and the left ends of the two longitudinal sliders are respectively fixedly connected to the upper and lower ends of the locking control frame, and a locking block is provided on the rear side of the locking control frame, and a locking groove corresponding to the locking block is provided on the front side of the left end of the railing.

[0006] Furthermore, the guardrail dust filtering mechanism includes a dust filter net, the bottom center of the hollow seat rod is rotatably connected to the bottom end of the inner scroll, the top of the inner scroll passes through the opening at the top of the hollow seat rod and is connected to the inner scroll turntable, the dust filter net is wound on the inner scroll, and a vertical outer scroll frame is detachably installed on the front side of the leftmost railing through a butterfly bolt, the outer scroll frame is rotatably connected to the vertical outer scroll, and the top of the outer scroll is installed with an outer scroll turntable, the left end of the dust filter net passes through the narrow slot on the left side of the hollow seat rod and is connected to the outer scroll, and the top of the inner scroll is connected to the top of the hollow seat rod through a rotating shaft rotation damping assembly.

[0007] Furthermore, the shaft rotation damping assembly includes a damping outer sleeve, a damping inner sleeve is fixedly sleeved on the top of the inner scroll, a plurality of hemispherical grooves are provided in an annular array on the outer circumference of the damping inner sleeve, and a damping outer sleeve is installed on the top of the hollow seat rod through a clamping seat. The damping outer sleeve is rotatably sleeved on the outer side of the damping inner sleeve, a plurality of blind grooves are provided in an annular array on the inner circumference of the damping outer sleeve, and the number of blind grooves is the same as the number of hemispherical grooves. A locking ball is connected in the blind groove through a second compression spring, and the second compression spring pushes the locking ball to engage with the corresponding hemispherical groove.

[0008] Furthermore, the dust filter follower cleaning mechanism includes a cleaning frame and a long cleaning brush. The front left end of the hollow seat rod is connected to the right side of the cleaning frame through a left and right reciprocating control component. The cleaning frame is equipped with a long cleaning brush, and the bristles on the rear side of the cleaning brush are in contact with the front side of the dust filter.

[0009] Furthermore, the left and right reciprocating control assembly includes a telescopic rod, the right side of the cleaning frame is fixedly connected to the left ends of the two telescopic rods, and the right ends of the two telescopic rods are fixedly connected to the front side of the hollow seat rod through supports. A tension spring is respectively sleeved on each telescopic rod, and the two ends of the tension spring are respectively connected to the support and the cleaning frame. The bottom front side of the hollow seat rod is rotatably connected to a transmission shaft, and the rear end of the transmission shaft is connected to the bottom end of the inner scroll through a right-angle transmission assembly. A cam is installed at the front end of the transmission shaft, and a wear-resistant roller is rotatably installed on the bottom right end of the cleaning frame through a roller frame, and the right end of the wear-resistant roller is rollingly connected to the left end of the cam.

[0010] Furthermore, the fence frame includes a locking sleeve, an unfolding locking rod and two half frames. The rear sides of the two half frames close to each other are movably connected, and the front sides of the two half frames close to each other are fixedly connected to two locking sleeves, and the unfolding locking rod passes through the two locking sleeves.

[0011] Furthermore, the support anchoring mechanism includes an anchoring main rod, a bottom groove is provided at the bottom of each half frame, a mounting bolt is threadedly connected to the middle of the bottom groove, and the mounting bolt is rotatably connected to the middle of the anchoring main rod, two end grooves are provided at both ends of the anchoring main rod, and the middle of each end groove is movably connected to the middle of the anchoring secondary rod through a pin shaft, anchoring holes are provided at both ends of the anchoring secondary rod, and anchoring holes are also provided at the positions corresponding to the two ends of the end groove on the anchoring main rod.

[0012] Furthermore, it also includes a diversion and dust reduction mechanism, which includes an arc guide plate, a seat plate is installed on the top rear side of the fence, the top of the seat plate is fixedly connected to the front end of the support plate, and the rear end of the support plate is fixedly connected to the bottom end of the arc bracket, the arc guide plate is installed on the arc bracket, and the arc bracket is installed with an atomization dust reduction component.

[0013] Furthermore, the atomizing dust reduction assembly includes a dust reduction atomizing head, an arc branch pipe is provided in the middle of the arc bracket, a water outlet pipe is installed on the top of the arc bracket, and a dust reduction atomizing head is provided at an equal distance on the side of the water outlet pipe away from the arc bracket, the top of the arc branch pipe is connected to the middle of the water outlet pipe, and a water supply main pipe is placed on the support plate, and the water supply main pipe is connected to the bottom end of the arc branch pipe through a joint.

[0014] Compared with the existing technology, the beneficial effects of the guardrail with dust removal function for construction projects are: 1. When using the guardrail with dust removal function for construction projects, stand up the fence frame, rotate the anchoring main rod 90 degrees relative to the fence frame through the installation bolts, and then rotate the anchoring secondary rod 90 degrees relative to the anchoring main rod through the pin shaft, and then insert the anchor rods into each anchor hole, and fix the support anchoring mechanism to the ground through the anchor rods, thereby fixing the fence frame. Since the anchoring main rod is perpendicular to the fence frame at this time, the fence frame is not easy to fall forward or backward, and the supporting and fixing effect of the fence frame is good; 2. The construction project uses a guardrail with a dust removal function. The railing equidistant control component is used to keep the seven railings equidistantly distributed on the inside of the guardrail frame. You only need to push and pull the leftmost railing to make the seven railings move left and right on the inside of the guardrail frame. The railing equidistant control component can also enhance the strength of the guardrail body composed of the seven railings and the guardrail frame. When the leftmost railing is pushed to the right, the seven railings are gradually moved to the right end of the guardrail frame with the help of the railing equidistant control component. A passage for staff to pass through can be formed at the left end of the guardrail frame. When the leftmost railing is pulled to the left, the seven railings can be evenly distributed in all the spaces inside the guardrail frame with the help of the railing equidistant control component, completely blocking the inner passage of the entire guardrail frame. The railing expansion locking component locks the leftmost railing to the left front end of the guardrail frame, allowing the guardrail to serve as a protective enclosure. As a result, the enclosure state of the guardrail is easily released, allowing staff to pass through and enter and exit conveniently.

[0015] 3. The construction project uses a guardrail with a dust removal function, and a dust filter can be used to filter the dust. Once the dust filter corresponding to the frame blocks too much dust and causes its mesh to be blocked, the dust filter can be wound around the outer reel to release the clean dust filter wound on the inner reel, so that the dust filter blocking the frame can be quickly replaced.

[0016] 4. The construction project uses a guardrail with a dust removal function. When the inner scroll rotates, the cleaning frame is driven to move back and forth through the left and right reciprocating control component, thereby driving the long cleaning brush to brush back and forth on the front side of the dust filter. When the inner scroll wraps the dust filter and stores it in the hollow seat rod, the dust attached to the front side of the dust filter can be cleaned to prevent the dust from entering the hollow seat rod in large quantities along with the dust filter. It is also convenient for the dust filter to be put into use directly next time. When it is put into use next time, the dust filter on the inner scroll is released, and the left and right reciprocating control component can still use the long cleaning brush to brush the front side of the dust filter left and right to clean the dust remaining on the front side of the dust filter again.

[0017] 5. The construction project uses a guardrail with a dust removal function. When used in the space in front of the fence, dust is raised. The dust will encounter the dust filter and be filtered by the dust filter. When the mesh on the dust filter is blocked, the dust filtering effect of the dust filter decreases. The dust will be lifted up after encountering the obstruction of the dust filter. The lifted dust passes over the top of the dust filter and encounters the arc guide plate on the arc bracket. The arc guide plate guides the airflow mixed with dust, allowing the airflow mixed with dust to flip upward and return, meeting the water mist sprayed by the atomizing dust reduction component, to achieve dust reduction treatment. Since the effective dust reduction range of the water mist generated by the atomizing dust reduction component is effective, the arc guide plate is set to guide the airflow mixed with dust, so that the airflow encounters the water mist more concentratedly, making full use of the effective dust reduction range of the water mist, improving the dust reduction effect, and achieving the purpose of dust removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a guardrail with a dust removal function for construction engineering of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the partially enlarged structure at center A; Figure 3 For the present invention Figure 1 A schematic diagram of the partially enlarged structure at point B in the middle; Figure 4 For the present invention Figure 1 A schematic diagram of the partially enlarged structure at point C in the middle; Figure 5 This is a schematic diagram of the rear structure of the guardrail with dust removal function for construction engineering of the present invention; Figure 6 For the present invention Figure 5 The schematic diagram of the local enlarged structure at D in the middle; Figure 7 This is a schematic diagram of the rear side upward structure of the protection fence with dust removal function for construction engineering of the present invention; Figure 8 This is a schematic structural diagram of the dust filtering mechanism of the present invention without the partial protection fence; Figure 9 For the present invention Figure 8 The schematic diagram of the local enlarged structure at E in the middle; Figure 10 For the present invention Figure 8 The schematic diagram of the partially enlarged structure at F in the middle; Figure 11 This is a schematic diagram of the rear structure of the dust filter mechanism of the guardrail in the present invention; Figure 12 Schematic diagram of the longitudinal cross-section structure of the hollow seat post of the present invention; Figure 13 For the present invention Figure 12 Schematic diagram of the local enlarged structure at G in the middle; Figure 14 For the present invention Figure 12 Schematic diagram of the partially enlarged structure at H in the middle; Figure 15 This is a schematic diagram of the guardrail dust filtering mechanism and the diversion dust reduction mechanism of the present invention when they are in action; In the figure: 1. guardrail mechanism; 11. fence frame; 1101. half frame; 1102. folding ear seat; 1103. folding axis; 1104. locking sleeve; 1105. unfolding locking rod; 12. hollow seat rod; 13. assembly card block; 14. assembly card slot; 15. guide slot; 16. guide block; 17. guardrail; 18. movable axis 1; 19. short control rod; 110. long guide slot; 111. sliding column; 112. movable axis 2; 113. long control rod; 114. bent plate; 115. push-pull box; 116. locking control box; 117. locking slot; 118. locking block; 119. longitudinal slot; 120. longitudinal slider; 121. compression spring 1; 2. Support anchor mechanism; 21. Bottom groove; 22. Mounting bolt; 23. Anchor main rod; 24. End groove; 25. Pin; 26. Anchor secondary rod; 3. Guardrail dust filter mechanism; 31. Inner reel; 32. Dust filter; 33. Tray; 34. Inner reel turntable; 35. Outer reel frame; 36. Outer reel; 37. Outer reel turntable; 38. Butterfly bolt; 39. Bearing; 310. Damping sleeve; 311. Clamping seat; 312. Compression spring (II); 313. Clamping ball; 314. Damping inner sleeve; 4. Dust filter follow-up cleaning mechanism; 41. Cleaning rack; 42. Cleaning brush; 43. Support; 44. Telescopic rod; 45. Tension spring; 46. Driving bevel gear; 47. Driven bevel gear; 48. Transmission shaft; 49. Cam; 410. Roller rack; 411. Wear-resistant roller; 5. Diversion and dust suppression mechanism; 51. Disassembly bolts; 52. Base plate; 53. Support plate; 54. Arc bracket; 55. Arc guide plate; 56. Water pipe baffle; 57. Reinforcement support rod; 58. Water supply main pipe; 59. Connector; 510. Arc branch pipe; 511. Water outlet pipe; 512. Dust suppression atomizing head. DETAILED DESCRIPTION

[0019] 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] For example 1, please refer to Figures 1 to 14The present embodiment provides a technical solution: a guardrail with a dust removal function for construction projects, including a guardrail mechanism 1, the guardrail mechanism 1 includes a fence frame 11 and a hollow seat rod 12, a vertical hollow seat rod 12 is installed at the right end of the fence frame 11, and a circular chamber is arranged inside the hollow seat rod 12, the guardrail mechanism 1 also includes a railing 17, a railing equidistant control component and a railing expansion locking component, seven railings 17 are installed on the inner side of the fence frame 11 with equal distances in the horizontal direction, and the seven railings 17 are connected by the railing equidistant control component, the rightmost railing 17 is fixedly connected to the right end of the fence frame 11, and the leftmost railing 17 is connected to the left end front side of the fence frame 11 through the railing expansion locking component.

[0021] The guardrail mechanism 1 also includes a guide groove 15 and a guide block 16. Two guide grooves 15 are respectively provided on the upper and lower sides of the fence frame 11. The upper and lower ends of each railing 17 are respectively fixedly connected to a guide block 16. The guide block 16 is connected to the corresponding guide groove 15 for horizontal sliding. The guide groove 15 and the guide block 16 cooperate to realize the horizontal sliding installation of each railing 17 in the fence frame 11.

[0022] The guardrail mechanism 1 also includes an assembling card block 13 and an assembling card slot 14. The left side of the fence frame 11 is fixedly connected to two assembling card blocks 13. The right side, front side and rear side of the hollow seat rod 12 are respectively provided with two assembling card slots 14. When the two fence frames 11 are arranged side by side, the assembling card block 13 on one fence frame 11 is inserted into the assembling card slot 14 on the right side of the hollow seat rod 12 on the other fence frame 11. When the two fence frames 11 are arranged at right angles, the assembling card block 13 on one fence frame 11 is inserted into the assembling card slot 14 on the right side of the hollow seat rod 12 on the other fence frame The assembling slots 14 on the front or rear side of the hollow seat rod 12 on the frame 11 make it convenient to assemble and connect the two fences 11 with the help of the assembling blocks 13 and the assembling slots 14. Since the front and rear sides of the hollow seat rod 12 are provided with assembling slots 14, the two fences 11 can be assembled in a vertical direction. Multiple fences 11 are arranged together to form a large guardrail. Since the two fences 11 can be assembled in a vertical direction, multiple fences 11 can be assembled into a rectangular fence.

[0023] The railing equidistant control assembly includes a movable axis 18, a short control rod 19, a long guide groove 110, a sliding column 111, a movable axis 2 112 and a long control rod 113. From right to left, the middle of the first railing 17 and the seventh railing 17 are respectively installed with a movable axis 18, and each movable axis 18 is movably connected to two short control rods 19. The second railing 17, the fourth railing 17 and the sixth railing 17 are respectively provided with a vertical long guide groove 110. The middle of the third railing 17 and the fifth railing 17 are respectively installed with a movable axis 2 112, and each movable axis 2 112 is movably connected to the middle of two long control rods 113. A movable axis 2 112 and the two long control rods 113 constitute a group of scissor-type connecting rods. The ends of the two long control rods 113 in a group of scissor-type connecting rods are connected to the ends of the two long control rods 113. The ends of the two long control rods 113 in the other set of scissor-type links are movably connected by two sliding columns 111, and the ends of the two long control rods 113 in each set of scissor-type links are respectively movably connected to the ends of the corresponding two short control rods 19 through two sliding columns 111, and the sliding columns 111 are slidably connected to the corresponding long guide grooves 110. Thus, the railing equidistant control component constitutes a telescopic grille with three diamond structures. The telescopic grille allows the seven railings 17 to be always distributed at equal distances through movable shaft 18, sliding columns 111, and movable shaft 2 112. When the telescopic grille is expanded, the seven railings 17 block the inner side of the fence frame 11. At this time, the distance between the two adjacent railings 17 is the largest. When the telescopic grille contracts, the seven railings 17 are concentrated on the right side of the fence frame 11. At this time, the two adjacent railings 17 are in contact with each other. It should be noted that the telescopic grille here serves to transmit the seven railings 17 to be evenly distributed, and is not used as the main body of the guardrail. The main structure of the guardrail composed of the seven railings 17 and the frame 11 is more stable and is not easily deformed or damaged by collision.

[0024] The railing expansion locking assembly includes a bent plate 114, a push-pull frame 115, a locking control frame 116, a lock slot 117, a locking block 118, a longitudinal slot 119, a longitudinal slider 120 and a compression spring 121. A bent plate 114 is provided on the front side of the leftmost railing 17. The left end of the bent plate 114 is fixedly connected to the push-pull frame 115. Two longitudinal slots 119 are respectively provided at the upper and lower ends of the push-pull frame 115. Two longitudinal sliders 120 are respectively slidably connected in the two longitudinal slots 119. The front end of each longitudinal slider 120 is connected to the front end of the corresponding longitudinal slot 119 through a compression spring 121. The left ends of the two longitudinal sliders 120 are respectively fixedly connected to the upper and lower ends of the locking control frame 116. A locking block 118 is provided on the rear side of the locking control frame 116. A lock slot 117 corresponding to the locking block 118 is provided on the front side of the left end of the railing 11 The staff's limbs except the thumb pass through the inner sides of the push-pull frame 115 and the locking control frame 116, and pull the locking control frame 116 forward. At this time, the locking control frame 116 drives the two longitudinal slides 120 to move forward along the longitudinal slot 119, and the two compression springs 121 are compressed. Then the push-pull frame 115 and the locking control frame 116 are pulled to the left, thereby driving the leftmost railing 17 until the left side of the leftmost railing 17 touches the left side of the railing frame 11. At this time, the locking block 118 is located in front of the locking slot 117, and the push-pull frame 115 and the locking control frame 116 are released. The two compression springs 121 extend and reset, pushing the locking control frame 116 and the two longitudinal slides 120 to move backward along the longitudinal slot 119, and the locking block 118 on the rear side of the locking control frame 116 extends into the locking slot 117, and the leftmost railing is locked with the help of the bent plate 114. The rod 17 is locked in the position of the fence 11. Due to the existence of the fence equidistant control component, the positions of the seven fences 17 in the fence 11 are all locked. When it is necessary to open a passage at the left end of the fence 11 for the staff to pass through, the staff's limbs except the thumb are again allowed to pass through the inner side of the push-pull box 115 and the locking control box 116, and the locking control box 116 is pulled forward. At this time, the locking control box 116 drives the two longitudinal sliders 120 to move forward along the longitudinal groove 119, and the two compression springs 121 are compressed. The locking block 118 on the rear side of the locking control box 116 is disengaged from the locking groove 117. At this time, the leftmost fence 17 can be pushed to the right. With the help of the fence equidistant control component, the seven fences 17 can be moved to the right in the fence 11. Finally, the seven fences 17 approach each other and concentrate at the right end of the fence 11, forming a passage at the left end of the fence 11.

[0025] It also includes a guardrail dust filtering mechanism 3, a dust filter follower cleaning mechanism 4 and a support anchoring mechanism 2.

[0026] The guardrail dust filter mechanism 3 is installed in the hollow seat rod 12 and on the front side of the fence frame 11, and the left end of the guardrail dust filter mechanism 3 is connected to the leftmost railing 17; The guardrail dust filter mechanism 3 includes an inner reel 31, a dust filter 32, an inner reel turntable 34, an outer reel frame 35, an outer reel 36, an outer reel turntable 37, a butterfly bolt 38, a bearing 39 and a shaft rotation damping assembly. The bottom center of the hollow seat rod 12 is rotatably connected to the bottom end of the inner reel 31 through the bearing 39. The top of the inner reel 31 passes through the opening at the top of the hollow seat rod 12 and is connected to the inner reel turntable 34. The inner reel turntable 34 is used to facilitate the rotation of the inner reel 31. The dust filter 32 is wound on the inner reel 31. The front side of the leftmost railing 17 is connected by a butterfly bolt. 38 is detachably mounted with a vertical outer reel frame 35, and a vertical outer reel 36 is rotatably connected inside the outer reel frame 35. An outer reel turntable 37 is mounted on the top of the outer reel 36, and the outer reel 36 can be easily rotated with the help of the outer reel turntable 37. The left end of the dust filter 32 passes through the narrow slot on the left side of the hollow seat rod 12 and is connected to the outer reel 36, and the dust filter 32 is located on the front side of the frame 11. The top of the inner reel 31 is connected to the top of the hollow seat rod 12 through the rotating shaft rotation damping assembly, and the bottom of the outer reel 36 is also connected to the bottom of the outer reel frame 35 through the rotating shaft rotation damping assembly.

[0027] The guardrail dust filtering mechanism 3 also includes a tray 33. The bottom of the inner reel 31 is installed at a position corresponding to the bottom of the narrow groove on the left side of the hollow seat rod 12. The tray 33 is used to support the bottom of the dust filter 32 wound on the inner reel 31.

[0028] The setting of the shaft rotation damping component allows the inner scroll 31 and the outer scroll 36 to have damping when they rotate, preventing the uncontrolled rotation of the inner scroll 31 and the outer scroll 36 from causing the dust filter 32 between the inner scroll 31 and the outer scroll 36 to be unable to be in a taut state. The length of the dust filter 32 is twice the distance between the inner scroll 31 and the outer scroll 36. In the initial state, the dust filter 32 is almost entirely wound around the inner scroll 31 and is located inside the hollow seat rod 12. Only a small amount of the dust filter 32 is outside the hollow seat rod 12, located behind the seven railings 17 concentrated on the right end of the fence 11. When the leftmost railing 17 is pulled to the left so that the seven railings 17 are evenly distributed in the fence 11 to block the inner space of the fence 11, the outer scroll frame 35 and the outer scroll 36 move left with the leftmost railing 17, and the outer scroll 36 pulls the filter outward. The dust screen 32 is released from the inner scroll 31. At this time, the dust filter 32 is on the front side of the frame 11, and half of the dust filter 32 is still wound on the inner scroll 31 and is located inside the hollow seat rod 12. Dust during construction encounters the dust filter 32 and is filtered and attached to the front side of the dust filter 32. When the mesh holes on the dust filter 32 begin to be blocked, the dust filtering effect of the dust filter 32 decreases. With the help of the outer scroll turntable 37, the outer scroll 36 is rotated counterclockwise, and the outer scroll 36 winds the dust filter 32. At this time, the resistance of the shaft rotation damping component received by the inner scroll 31 can be overcome, allowing the clean dust filter 32 on the inner scroll 31 to be released, and the dust filter 32 with blocked mesh holes is wound back onto the outer scroll 36, so that the clean dust filter 32 can replace the dust filter 32 with blocked mesh holes and quickly play the role of dust filtering and dust prevention again.

[0029] The shaft rotation damping assembly includes a damping sleeve 310, a socket 311, a second compression spring 312, a locking ball 313 and a damping inner sleeve 314. The top of the inner reel 31 is fixedly sleeved with the damping inner sleeve 314, and a plurality of hemispherical grooves are provided in a circular array on the outer circumference of the damping inner sleeve 314. The top of the hollow seat rod 12 is equipped with the damping sleeve 310 through the socket 311. The damping sleeve 310 is rotatably sleeved on the outer side of the damping inner sleeve 314, and a plurality of blind grooves are provided in a circular array on the inner circumference of the damping sleeve 310. The number of blind grooves is the same as the number of hemispherical grooves. The locking ball 313 is connected to the blind groove through the second compression spring 312, and the second compression spring 312 pushes the locking ball 313 to engage with the corresponding hemispherical groove. When the inner scroll 31 rotates, the damping inner sleeve 314 and the card ball 313 need to overcome the elastic force of the compression spring 2 312 so that the card ball 313 can be completely retracted into the blind groove. At this time, the inner scroll 31 and the damping inner sleeve 314 can rotate on the inner side of the damping outer sleeve 310, and there is also friction between the card ball 313 and the outer side of the damping inner sleeve 314 during rotation. When the blind groove corresponds to the next hemispherical groove again, the compression spring 2 312 extends and pushes the card ball 313 to engage with the hemispherical groove again, thereby limiting the rotation of the inner scroll 31 and providing damping for the rotation of the inner scroll 31. There is resistance when the inner scroll 31 and the outer scroll 36 rotate, which can keep the dust filter 32 between the inner scroll 31 and the outer scroll 36 in a taut state.

[0030] The structure of the shaft rotation damping assembly at the bottom of the outer reel 36 is the same as the structure of the shaft rotation damping assembly at the top of the inner reel 31 .

[0031] The dust filter follower cleaning mechanism 4 is installed on the front side of the hollow seat rod 12, and the dust filter follower cleaning mechanism 4 is connected to the guardrail dust filter mechanism 3; The supporting anchoring mechanism 2 is installed on both sides of the bottom of the fence frame 11.

[0032] The fence 11 includes a locking sleeve 1104, an unfolding locking rod 1105 and two half frames 1101. The rear sides of the two half frames 1101 close to each other are movably connected, and the front sides of the two half frames 1101 close to each other are fixedly connected to two locking sleeves 1104, and the unfolding locking rod 1105 passes through the two locking sleeves 1104.

[0033] The column frame 11 also includes a folding ear seat 1102 and a folding axis 1103. Two folding ear seats 1102 are respectively provided on the rear side of the ends of the two half frames 1101 that are close to each other. The folding ear seat 1102 on one half frame 1101 is movably connected to the corresponding folding ear seat 1102 on the other half frame 1101 through the folding axis 1103, thereby realizing the movable connection of the two half frames 1101 and facilitating the folding of the two half frames 1101.

[0034] Since the two half frames 1101 are movably connected at the rear sides of one end close to each other, the two half frames 1101 can be folded to reduce the width for easy transportation. After the two half frames 1101 are unfolded, the unfolding locking rod 1105 passes through the two locking sleeves 1104. At this time, the two half frames 1101 are stably unfolded and can be stably put into use. Therefore, the folding and unfolding are convenient and fast, convenient for transportation, and also convenient for quick unfolding and putting into use.

[0035] The supporting anchoring mechanism 2 includes a bottom groove 21, a mounting bolt 22, an anchoring main rod 23, an end groove 24, a pin shaft 25 and an anchoring sub-rod 26. A bottom groove 21 is respectively provided at the bottom of each half frame 1101. The middle part of the bottom groove 21 is threadedly connected with a mounting bolt 22. The mounting bolt 22 is rotatably connected to the middle part of the anchoring main rod 23. Two end grooves 24 are respectively provided at both ends of the anchoring main rod 23. The middle part of each end groove 24 is movably connected to the middle part of the anchoring sub-rod 26 through a pin shaft 25. Anchoring holes are respectively provided at both ends of the anchoring sub-rod 26, and anchoring holes are also respectively provided at the positions corresponding to the two ends of the end grooves 24 on the anchoring main rod 23. When not in use, the anchoring secondary rod 26 is rotated in the end groove 24 through the pin shaft 25, so that the anchoring secondary rod 26 is retracted into the end groove 24, and then the anchoring main rod 23 is rotated to retract the anchoring main rod 23 into the bottom groove 21, which is convenient for transportation. When in use, the fence 11 is erected, and the anchoring main rod 23 is rotated ninety degrees relative to the fence 11 through the installation bolt 22, and then the anchoring secondary rod 26 is rotated ninety degrees relative to the anchoring main rod 23 through the pin shaft 25, and then the anchor rods are inserted into each anchoring hole, and the support anchoring mechanism 2 is fixed to the ground through the anchor rods, thereby fixing the fence 11. Since the anchoring main rod 23 is perpendicular to the fence 11 at this time, the fence 11 is not easy to tilt back and forth, and the support and fixing effect of the fence 11 is good.

[0036] The railing equidistant control component is used to keep the seven railings 17 equidistantly distributed on the inner side of the fence 11. It is only necessary to push and pull the leftmost railing 17 to allow the seven railings 17 to move left and right on the inner side of the fence 11. The railing equidistant control component can also enhance the strength of the guardrail body composed of the seven railings 17 and the fence 11. When the leftmost railing 17 is pushed to the right, the seven railings 17 are gradually moved to the right end of the fence 11 with the help of the railing equidistant control component, and a passage for staff to pass through can be formed at the left end of the fence 11. When the leftmost railing 17 is pulled to the left, the railing equidistant control component can be used to make the seven railings 17 equidistantly distributed in all the spaces inside the fence 11, completely blocking the inner passage of the entire fence 11. The railing expansion locking component locks the leftmost railing 17 to the left front end of the fence 11, so that the guardrail plays the role of a protective enclosure. Thus, the enclosure state of the guardrail is improved. The dust filter mechanism 3 of the guardrail is convenient to be released so that workers can pass through and enter and exit conveniently. The dust filter mechanism 3 of the guardrail can filter and intercept dust during construction, and the left end of the dust filter mechanism 3 of the guardrail is connected to the leftmost railing 17. When the railing equidistant control component allows the seven railings 17 to gradually move to the right end of the fence frame 11, the dust filter mechanism 3 of the guardrail also moves to the right with the leftmost railing 17, and the dust filter mechanism 3 of the guardrail will not block the passage at the left end of the fence frame 11, making it convenient for workers to enter and exit the guardrail. The dust filter mechanism 3 of the guardrail can also drive the dust filter follower cleaning mechanism 4 to move when storing or releasing the dust filter, so that the dust filter follower cleaning mechanism 4 cleans the dust filtered on the dust filter, avoiding the dust filter in the dust filter mechanism 3 of the guardrail being blocked and affecting the dust filtering and dust prevention effect. The support anchor mechanism 2 is used to quickly support and fix the fence frame 11, and the installation and arrangement are convenient. It needs to be used in conjunction with the external anchor rod and can be folded at the bottom of the fence frame 11 when not in use.

[0037] For example 2, please refer to Figures 1 to 14 This embodiment provides a technical solution: a guardrail with dust removal function for construction projects. This embodiment further explains the structure of the first embodiment: The dust filter follower cleaning mechanism 4 includes a cleaning frame 41 and a long cleaning brush 42. The front left end of the hollow seat rod 12 is connected to the right side of the cleaning frame 41 through a left and right reciprocating control component. The long cleaning brush 42 is installed on the cleaning frame 41, and the bristles on the rear side of the long cleaning brush 42 are in contact with the front side of the dust filter 32. When the inner scroll 31 rotates, the cleaning frame 41 is driven to reciprocate left and right through the left and right reciprocating control assembly, thereby driving the long cleaning brush 42 to brush back and forth left and right on the front side of the dust filter 32. When the inner scroll 31 winds the dust filter 32 and stores it in the hollow seat rod 12, the dust attached to the front side of the dust filter 32 can be cleaned to prevent the dust from entering the hollow seat rod 12 in large quantities along with the dust filter 32. It is also convenient for the dust filter 32 to be directly put into use next time. When it is put into use next time, the dust filter 32 on the inner scroll 31 is released, and the left and right reciprocating control assembly can still use the long cleaning brush 42 to brush the front side of the dust filter 32 left and right to clean the dust left on the front side of the dust filter 32 again.

[0038] The left and right reciprocating control components include a support 43, a telescopic rod 44, a tension spring 45, a transmission shaft 48, a cam 49, a roller frame 410 and a wear-resistant roller 411. The right side of the cleaning frame 41 is fixedly connected to the left ends of the two telescopic rods 44, and the right ends of the two telescopic rods 44 are fixedly connected to the front side of the hollow seat rod 12 through the support 43. Each telescopic rod 44 is respectively sleeved with a tension spring 45. The two ends of the tension spring 45 are respectively connected to the support 43 and the cleaning frame 41. The bottom front side of the hollow seat rod 12 is rotatably connected with the transmission shaft 48. The rear end of the transmission shaft 48 is connected to the bottom end of the inner scroll 31 through a right-angle transmission assembly. The front end of the transmission shaft 48 is installed with a cam 49. The cam 49 can be provided with one or two arc protrusions as needed. The bottom right end of the cleaning frame 41 is rotatably installed with a wear-resistant roller 411 through the roller frame 410, and the right end of the wear-resistant roller 411 is rollingly connected to the left end of the cam 49.

[0039] The right-angle transmission assembly includes a driving bevel gear 46 and a driven bevel gear 47. The driving bevel gear 46 is installed at the bottom of the inner reel 31, and the driven bevel gear 47 is installed at one end of the transmission shaft 48 located at the bottom of the hollow seat rod 12. The driven bevel gear 47 is meshed with the driving bevel gear 46.

[0040] The cleaning frame 41 is installed with the help of two horizontal telescopic rods 44, so that the cleaning frame 41 can only move back and forth. When the inner scroll 31 rotates, the transmission shaft 48 drives the transmission shaft 48 to rotate relative to the hollow seat rod 12 through the right-angle transmission assembly, and the transmission shaft 48 drives the cam 49 to rotate. When the arc protrusion on the cam 49 contacts the wear-resistant roller 411, the cleaning frame 41 is pushed to the left through the wear-resistant roller 411 and the roller frame 410. At this time, the tension spring 45 is stretched, and when the arc protrusion on the cam 49 leaves the wear-resistant roller 411, the force pushing the cleaning frame 41 to the left disappears. At this time, the tension spring 45 is reset and shortened, pulling the cleaning frame 41 to move to the right and reset. With the continuous rotation of the transmission shaft 48 and the cam 49, the cleaning frame 41 is driven to reciprocate left and right, and the long cleaning brush 42 is also driven to reciprocate left and right.

[0041] For example three, please refer to Figures 1 to 15 This embodiment provides a technical solution: a guardrail with a dust removal function for construction projects. The structure of this embodiment is roughly the same as that of the second embodiment, except that: It also includes a guide and dust reduction mechanism 5, which includes a disassembly bolt 51, a seat plate 52, a support plate 53, an arc bracket 54, an arc guide plate 55 and an atomizing dust reduction component. The seat plate 52 is installed on the top rear side of the fence 11 by disassembly bolts 51. The top of the seat plate 52 is fixedly connected to the front end of the support plate 53, and the rear end of the support plate 53 is fixedly connected to the bottom end of the arc bracket 54. The arc guide plate 55 is installed on the arc bracket 54, and the tops of the arc bracket 54 and the arc guide plate 55 are bent forward, and the atomizing dust reduction component is installed on the arc bracket 54.

[0042] When the space in front of the fence 11 is used, dust is raised and the dust encounters the dust filter 32. The dust is filtered by the dust filter 32. When the mesh holes on the dust filter 32 are blocked, the dust filtering effect of the dust filter 32 decreases. The dust encounters the obstruction of the dust filter 32 and is raised upward. The raised dust passes over the top of the dust filter 32 and encounters the arc guide plate 55 on the arc bracket 54. The arc guide plate 55 guides the airflow containing dust, allowing the airflow containing dust to flip upward and return, and meet the water mist sprayed by the atomizing dust reduction component to achieve dust reduction treatment. Since the effective dust reduction range of the water mist generated by the atomizing dust reduction component is effective, the arc guide plate 55 is set to guide the airflow containing dust, so that the airflow encounters the water mist more concentratedly, making full use of the effective dust reduction range of the water mist, improving the dust reduction effect on dust, and achieving the purpose of dust removal.

[0043] The atomizing dust reduction component includes a water supply main pipe 58, a joint 59, an arc branch pipe 510, a water outlet pipe 511 and a dust reduction atomizing head 512. The arc branch pipe 510 is arranged in the middle of the arc bracket 54, and the water outlet pipe 511 is installed on the top of the arc bracket 54. The dust reduction atomizing head 512 is arranged at an equal distance on the side of the water outlet pipe 511 away from the arc bracket 54. The top of the arc branch pipe 510 is connected to the middle of the water outlet pipe 511, and the two ends of the water outlet pipe 511 are closed. The water supply main pipe 58 is placed on the support plate 53, and the water supply main pipe 58 is connected to the bottom end of the arc branch pipe 510 through the joint 59.

[0044] The diversion and dust reduction mechanism 5 also includes a water pipe baffle 56 and a reinforcement strut 57. The top of the support plate 53 close to the fence 11 is fixedly connected with a vertical water pipe baffle 56, and the two ends of the support plate 53 close to the fence 11 are respectively fixedly connected to the two ends of the top of the arc bracket 54 through two reinforcement struts 57. The reinforcement strut 57 is used to improve the installation strength of the arc bracket 54. A water pipe placement groove is formed between the support plate 53, the water pipe baffle 56 and the bottom of the arc bracket 54, which is used to limit the water supply main 58 placed on the support plate 53.

[0045] After the first connection of multiple fences 11, the water supply main pipe 58 is passed through the upper side of the support plate 53 of the multiple fences 11, and then the port of the water supply main pipe 58 is connected to multiple joints 59. An external water pump supplies water to the water supply main pipe 58. The water in the water supply main pipe 58 enters each arc branch pipe 510 and the water outlet pipe 511 through each joint 59. The water in the water outlet pipe 511 is atomized into water mist by the dust reduction atomizing head 512 and then sprayed out, thereby achieving dust reduction with the help of water mist.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A guardrail with a dust removal function for use in construction projects, comprising a guardrail mechanism (1), wherein the guardrail mechanism (1) comprises a guardrail frame (11) and a hollow seat rod (12), wherein a vertical hollow seat rod (12) is mounted on the right end of the guardrail frame (11), and wherein: The guardrail mechanism (1) further comprises a railing (17), a railing equidistant control assembly and a railing expansion locking assembly, seven railings (17) are slidably mounted laterally and equidistantly on the inner side of the fence frame (11), the seven railings (17) are connected via the railing equidistant control assembly, the rightmost railing (17) is fixedly connected to the right end of the fence frame (11), and the leftmost railing (17) is connected to the left end front side of the fence frame (11) via the railing expansion locking assembly; Also includes: A guardrail dust filter mechanism (3) is installed in the hollow seat rod (12) and on the front side of the fence frame (11), and the left end of the guardrail dust filter mechanism (3) is connected to the leftmost fence (17); A dust filter follower cleaning mechanism (4) is mounted on the front side of the hollow seat rod (12), and the dust filter follower cleaning mechanism (4) is connected to the guardrail dust filter mechanism (3); The support anchoring mechanism (2) is installed on both sides of the bottom of the fence frame (11).

2. The guardrail with dust removal function for construction engineering according to claim 1, characterized in that: The railing unfolding locking assembly includes a push-pull frame (115), a bent plate (114) is provided on the front side of the leftmost railing (17), and the left end of the bent plate (114) is fixedly connected to the push-pull frame (115), and two longitudinal grooves (119) are respectively provided at the upper and lower ends of the push-pull frame (115), and two longitudinal sliders (120) are respectively slidably connected in the two longitudinal grooves (119), and the front end of each longitudinal slider (120) is connected to the front end of the corresponding longitudinal groove (119) through a compression spring (121), and the left ends of the two longitudinal sliders (120) are respectively fixedly connected to the upper and lower ends of the locking control frame (116), and a locking block (118) is provided on the rear side of the locking control frame (116), and a locking groove (117) corresponding to the locking block (118) is provided on the front side of the left end of the railing (11).

3. The construction engineering guardrail with dust removal function according to claim 1, characterized in that: The guardrail dust filter mechanism (3) includes a dust filter (32), the bottom center of the hollow seat rod (12) is rotatably connected to the bottom end of the inner reel (31), and the dust filter (32) is wound on the inner reel (31). The front side of the leftmost guardrail (17) is detachably mounted with a vertical outer reel frame (35) through a butterfly bolt (38), and the outer reel frame (35) is rotatably connected to a vertical outer reel (36). The left end of the dust filter (32) passes through a narrow slot on the left side of the hollow seat rod (12) and is connected to the outer reel (36). The top of the inner reel (31) is connected to the top of the hollow seat rod (12) through a rotating shaft rotation damping assembly.

4. The guardrail with dust removal function for construction engineering according to claim 3, characterized in that: The shaft rotation damping assembly includes a damping outer sleeve (310), a damping inner sleeve (314) is fixedly sleeved on the top of the inner reel (31), a plurality of hemispherical grooves are provided in an annular array on the outer circumference of the damping inner sleeve (314), a damping outer sleeve (310) is installed on the top of the hollow seat rod (12) through a clamping seat (311), the damping outer sleeve (310) is rotatably sleeved on the outer side of the damping inner sleeve (314), a plurality of blind grooves are provided in an annular array on the inner circumference of the damping outer sleeve (310), the number of the blind grooves being the same as the number of the hemispherical grooves, a clamping ball (313) is connected in the blind groove via a second compression spring (312), and the second compression spring (312) pushes the clamping ball (313) to be clamped with the corresponding hemispherical groove.

5. The guardrail with dust removal function for construction engineering according to claim 3, characterized in that: The dust filter follower cleaning mechanism (4) comprises a cleaning frame (41) and a long cleaning brush (42), the front left end of the hollow seat rod (12) is connected to the right side of the cleaning frame (41) through a left-right reciprocating control assembly, and the cleaning frame (41) is equipped with a long cleaning brush (42), and the bristles on the rear side of the long cleaning brush (42) are in contact with the front side of the dust filter (32).

6. The guardrail with dust removal function for construction engineering according to claim 5, characterized in that: The left and right reciprocating control assembly includes a telescopic rod (44), the right side of the cleaning frame (41) is fixedly connected to the left ends of the two telescopic rods (44), the right ends of the two telescopic rods (44) are fixedly connected to the front side of the hollow seat rod (12) through the support (43), each telescopic rod (44) is respectively sleeved with a tension spring (45), the two ends of the tension spring (45) are respectively connected to the support (43) and the cleaning frame (41), the bottom front side of the hollow seat rod (12) is rotatably connected to a transmission shaft (48), the rear end of the transmission shaft (48) is connected to the bottom end of the inner scroll (31) through a right-angle transmission assembly, and the front end of the transmission shaft (48) is installed with a cam (49), the right end of the bottom right end of the cleaning frame (41) is rotatably installed with a wear-resistant roller (411) through a roller frame (410), and the right end of the wear-resistant roller (411) is rollingly connected to the left end of the cam (49).

7. The construction engineering guardrail with dust removal function according to claim 1, characterized in that: The fence frame (11) comprises a locking sleeve (1104), an unfolding locking rod (1105) and two half frames (1101), wherein the rear sides of the two half frames (1101) close to each other are movably connected, and the front sides of the two half frames (1101) close to each other are respectively fixedly connected to two locking sleeves (1104), and the unfolding locking rod (1105) passes through the two locking sleeves (1104).

8. The guardrail with dust removal function for construction engineering according to claim 7, characterized in that: The support anchoring mechanism (2) includes an anchoring main rod (23), a bottom groove (21) is provided at the bottom of each half frame (1101), a mounting bolt (22) is threadedly connected to the middle of the bottom groove (21), and the mounting bolt (22) is rotatably connected to the middle of the anchoring main rod (23), two end grooves (24) are provided at both ends of the anchoring main rod (23), the middle of each end groove (24) is movably connected to the middle of the anchoring auxiliary rod (26) through a pin shaft (25), and anchoring holes are provided at both ends of the anchoring auxiliary rod (26), and anchoring holes are also provided at positions corresponding to the two ends of the end groove (24) on the anchoring main rod (23).

9. The construction engineering guardrail with dust removal function according to claim 1, characterized in that: The utility model further comprises a guide dust reduction mechanism (5), wherein the guide dust reduction mechanism (5) comprises an arc guide plate (55), a seat plate (52) is installed on the top rear side of the fence (11), the top of the seat plate (52) is fixedly connected to the front end of the support plate (53), the rear end of the support plate (53) is fixedly connected to the bottom end of the arc bracket (54), the arc guide plate (55) is installed on the arc bracket (54), and an atomization dust reduction component is installed on the arc bracket (54).

10. The guardrail with dust removal function for construction engineering according to claim 9, characterized in that: The atomizing dust reduction assembly includes a dust reduction atomizing head (512), a circular arc branch pipe (510) is provided in the middle of the circular arc bracket (54), a water outlet pipe (511) is installed on the top of the circular arc bracket (54), and a dust reduction atomizing head (512) is provided at an equal distance on the side of the water outlet pipe (511) away from the circular arc bracket (54), the top end of the circular arc branch pipe (510) is connected to the middle of the water outlet pipe (511), a water supply main pipe (58) is placed on the support plate (53), and the water supply main pipe (58) is connected to the bottom end of the circular arc branch pipe (510) through a joint (59).

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