Building construction safety fence with dust removal effect

Abstract

This invention provides a construction safety fence with dust removal effect, including a telescopic fence. The telescopic fence includes multiple vertical bars, and a telescopic crossbar is provided between adjacent vertical bars. The telescopic crossbar includes a middle bar and two end bars, with the two ends of the middle bar sliding inside the two end bars. A water spray assembly is provided on the telescopic crossbar, and the water spray assembly includes a water tank, which includes a middle box and two end boxes. The two ends of the middle box are open, and the end of the two end boxes that are close to each other is also open. The two ends of the middle box slide inside the two end boxes. The middle box has multiple first water spray holes, and the two end boxes have multiple second water spray holes. During the extension and retraction of the water tank with the telescopic crossbar, the first water spray holes align with the corresponding second water spray holes. The water tank is rotatably connected to the telescopic crossbar. The technical solution of this application can adjust the size of the water spray range and improve the dust removal effect.

Description

Technical Field

[0001] This invention relates to the technical field of building construction, and in particular to a building construction safety fence with dust removal effect. Background Technology

[0002] A large amount of dust is generated at the construction site. In the existing construction setup, the dust is usually treated by spraying water with nozzles. However, since the position of the nozzles is fixed, when the length of the fence is increased, the spray range cannot be changed or additional nozzles need to be installed. The inability to change the spray range makes the dust removal effect very limited, and adding nozzles increases the workload of the workers. In addition, the dust removal effect of fixed nozzles also needs to be improved. Summary of the Invention

[0003] One objective of this invention is to provide a construction safety fence with dust removal effect, which can adjust the spray range of the nozzles to improve the dust removal effect and reduce the impact on the health of workers.

[0004] The construction safety fence with dust removal effect provided in this application adopts the following technical solution: The construction safety fence with dust removal effect according to the present invention includes a telescopic fence, which includes multiple vertical bars. A connecting rod assembly is provided between two adjacent vertical bars. The connecting rod assembly includes four unit bars forming a rhombus. The four unit bars are rotatably connected in sequence, and the unit bars are also rotatably connected to the adjacent vertical bars. A telescopic crossbar is provided between two adjacent vertical bars. The telescopic crossbar includes a middle bar and two end bars. The two ends of the middle bar slide inside the two end bars. A water spraying assembly is provided on the telescopic crossbar. The water spraying assembly includes a water spraying tank, which includes a middle tank and two end tanks. The two ends of the middle tank are open, and the end of the two end tanks that are close to each other is also open. The two ends of the middle tank slide inside the two end tanks. The middle tank has multiple first water spraying holes, and the two end tanks have multiple second water spraying holes. During the extension and retraction of the water spraying tank with the telescopic crossbar, the first water spraying holes align with the corresponding second water spraying holes. The top surface of the intermediate rod is provided with a first water pipe, and the side of the intermediate rod near the water tank is provided with a first water outlet pipe. The top surface of the two end rods is provided with a second water pipe, and the side of the two end rods near the water tank is provided with a second water outlet pipe. The interior of the intermediate rod is provided with a first water conveying channel, the top end of the first water conveying channel is connected to the first water pipe, and the side end of the first water conveying channel is connected to the first water outlet pipe. The interior of the two end rods is provided with a second water conveying channel, the top end of the second water conveying channel is connected to the second water pipe, and the side end of the second water conveying channel is connected to the second water outlet pipe. The top of the first and second water pipes is connected to a water delivery pipe. One end of the water delivery pipe is sealed, and the other end is connected to a water source. The water source is pumped into the water delivery pipe by a water pump. The water delivery pipe is connected to all the first and second water pipes. A first connecting hole connected to the second water pipe is opened on the top surface of the intermediate rod. Multiple first connecting holes are equidistantly arranged along the length of the intermediate rod. Multiple second connecting holes connected to the second water pipe are opened on the side of the intermediate rod near the water tank. During the extension and retraction of the water tank with the telescopic crossbar, the second water pipe aligns with the corresponding first connecting hole, and the second water outlet pipe aligns with the corresponding second connecting hole. A first water inlet pipe is provided on the side of the intermediate box near the intermediate rod, and a second water inlet pipe is provided on the side of the two end boxes near the two end rods. The first water inlet pipe is connected to and communicates with the first water outlet pipe through a connector, and the second water inlet pipe is connected to and communicates with the second water outlet pipe through a connector. A clearance groove is provided on the side of the intermediate box near the intermediate rod, which communicates with the second water inlet pipe. The clearance groove is located inside the two end boxes. During the extension and retraction of the water spray box with the telescopic crossbar, the clearance groove is always connected to the second water outlet pipe.

[0005] By adopting the above technical solution, the fence can be extended or retracted as needed, and the telescopic crossbars extend and retract accordingly. The water tank extends and retracts, and the water source is pumped into the water supply pipe by the water pump. The water supply pipe enters the middle tank through the first water pipe, the middle rod, the first water outlet pipe, and the first water inlet pipe, and is sprayed out through the first water spray hole. The water supply pipe enters the two end tanks through the second water pipe, the two end rods, the second water outlet pipe, and the second water inlet pipe, and is sprayed out through the second water spray hole. When the fence extends or retracts, the spray range of the nozzles can be changed, the dust removal range can be adjusted, and there is no need to install additional nozzles, saving manpower.

[0006] Preferably, a sealing groove is formed on the inner wall of one end of the relief groove along the length direction, and a sealing plate is slidably disposed in the sealing groove. The two sides of the sealing plate along the width direction are in contact with the inner walls of both sides of the relief groove along the width direction. The end of the sealing plate located outside the sealing groove is fixedly connected to the inner walls of the two end boxes through a connecting plate.

[0007] By adopting the above technical solution, when the water tank extends and retracts, the sealing plate will partially seal the relief groove, preventing the relief groove from sliding outside the two ends of the tank and causing water leakage.

[0008] Preferably, the water tank is rotatably connected to the telescopic crossbar, and a rotating assembly for driving the water tank to rotate is provided on the vertical rod. The rotating assembly includes a swing arm and a rotating motor. One end of the swing arm is rotatably connected to the side walls of the two end tanks, and the other end of the swing arm is rotatably connected to the vertical rod through a rotating rod. The swing arm and the rotating rod are fixedly connected, and the rotating rod is rotatably connected to the vertical rod. The rotating motor is mounted on the vertical rod, and the output shaft of the rotating motor is connected to the rotating rod through a synchronous belt. The synchronous belt is simultaneously sleeved on the output shaft of the rotating motor and the rotating rod and kept taut.

[0009] By adopting the above technical solution, the rotating motor drives the rotating rod to rotate, which in turn causes the water spray box to swing, thereby increasing the water spray range and dust removal range, and thus improving the dust removal effect.

[0010] Preferably, each end of the water spray tank along its length corresponds to a swing arm, and each swing arm corresponds to a rotating rod, a rotating motor, and a synchronous belt.

[0011] By adopting the above technical solution, the stability of the water spray tank's swing has been improved.

[0012] Preferably, an auxiliary shaft is provided between the water tank and the telescopic crossbar. The auxiliary shaft is hollow, and the first water outlet pipe and the second water outlet pipe are fixedly connected to the auxiliary shaft and communicate with the inside of the auxiliary shaft. An auxiliary port is provided on the side of the auxiliary shaft near the water spray assembly. An arc-shaped plate is rotatably installed at the auxiliary port. The arc angle of the arc-shaped plate is greater than that of the auxiliary port. The inner peripheral wall of the arc-shaped plate fits against the outer peripheral wall of the auxiliary shaft. The connecting piece is a transition pipe. The transition pipe is fixedly connected to the outer wall of the arc-shaped plate on the side away from the auxiliary shaft. The transition pipe is fixed to the corresponding first water inlet pipe and second water inlet pipe by screws. The swing arm is a telescopic arm, which extends and retracts as the water tank swings around the central axis of the auxiliary shaft.

[0013] By adopting the above technical solution, when the swing arm swings, it drives the water spray box to swing around the central axis of the auxiliary shaft, so that the arc plate slides on the auxiliary shaft, keeping the water spray box and the auxiliary shaft connected while preventing water leakage.

[0014] Preferably, a limiting block is provided on the inner wall of the arc-shaped plate, and a limiting ring groove for the limiting block to slide is provided on the outer peripheral wall of the auxiliary shaft.

[0015] Preferably, both the limiting block and the limiting ring groove are convex.

[0016] By adopting the above technical solution, the curved plate is prevented from detaching from the auxiliary axis.

[0017] Preferably, the top surface of the water tank is inclined, the bottom end of the top surface of the water tank is the end away from the telescopic crossbar, the side of the water tank away from the telescopic crossbar is also inclined, and the bottom end of the side of the water tank away from the telescopic crossbar is further away from the telescopic crossbar than the top end.

[0018] By adopting the above technical solution, the water spray path is made to first rise and then fall, which improves the water spraying effect and the dust removal effect.

[0019] Preferably, both the first and second water spray holes include five unit holes, with one unit hole located at the center of the other four unit holes.

[0020] By adopting the above technical solution, water is dispersed and sprayed out, which improves the water spraying effect and the dust removal effect.

[0021] Preferably, a locking rod is rotatably mounted on one of the vertical rods, and a locking post is mounted on the other vertical rod. The locking rod has a locking groove for the locking post to pass through. Multiple locking grooves are equidistantly arranged along the length of the locking rod. When the telescopic fence is extended to a suitable position, the locking rod is rotated so that the locking post passes into the corresponding locking groove.

[0022] By adopting the above technical solution, the retractable fence can be locked after it has been extended.

[0023] In summary, this application includes the following beneficial technical effects: The construction safety fence with dust removal effect according to the embodiments of the present invention, by adopting the above technical solution, allows the water tank to extend and retract according to actual needs. When the fence extends and retracts, the size of the spray range of the nozzle can be changed, thus adjusting the dust removal range. Moreover, there is no need to install additional nozzles, saving manpower. Furthermore, the water tank can swing up and down, thereby increasing the spray range, increasing the dust removal range, and improving the dust removal effect.

[0024] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0026] Figure 1 This is a schematic diagram of the overall structure of a construction safety guardrail with dust removal effect in an embodiment of this application.

[0027] Figure 2 This is a schematic diagram illustrating the structure of the locking lever in an embodiment of this application.

[0028] Figure 3 This is a cross-sectional structural diagram used in the embodiments of this application to illustrate the connection relationship between the water tank and the telescopic beam.

[0029] Figure 4 This is a schematic diagram illustrating the structure of the rotating assembly in an embodiment of this application.

[0030] Figure 5 This is a schematic diagram illustrating the structure of the limiting block and the limiting ring groove in the embodiments of this application.

[0031] Figure label: 1. Telescopic fence; 11. Vertical bar; 12. Unit bar; 2. Locking bar; 21. Locking post; 22. Locking groove; 3. Telescopic crossbar; 31. Middle bar; 311. First water pipe; 312. First water outlet pipe; 313. First connecting hole; 314. Second connecting hole; 32. End bars; 321. Second water pipe; 322. Second water outlet pipe; 33. Water supply pipe; 4. Sprinkler tank; 41. Middle box; 411. First water spray hole; 412. First water inlet pipe; 413. Clearance groove; 414. Sealing plate; 415. Connecting plate; 42. End housings; 421. Second water spray hole; 422. Second water inlet pipe; 5. Rotating assembly; 51. Swing rod; 52. Rotating motor; 53. Rotating rod; 54. Synchronous belt; 6. Auxiliary shaft; 61. Auxiliary port; 62. Limiting ring groove; 7. Arc plate; 71. Limiting block; 8. Transition pipe. Detailed Implementation

[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0033] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0034] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0035] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0037] In the specification and claims of this invention, the terms "first" and "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0038] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] The following describes in detail, with reference to the accompanying drawings, a construction safety fence with dust removal effect according to an embodiment of the present invention.

[0041] Reference Figure 1-5 The construction safety protection fence with dust removal effect includes a telescopic fence 1, which includes multiple vertical bars 11. A connecting rod assembly is provided between two adjacent vertical bars 11. The connecting rod assembly includes four unit bars 12 forming a rhombus. The four unit bars 12 are rotatably connected in sequence, and the unit bars 12 are also rotatably connected to the adjacent vertical bars 11.

[0042] One of the vertical rods 11 is rotatably equipped with a locking rod 2, and the other vertical rod 11 is equipped with a locking post 21. The locking rod 2 has a locking groove 22 for the locking post 21 to pass through. Multiple locking grooves 22 are equidistantly arranged along the length of the locking rod 2. When the telescopic fence 1 is stretched to the appropriate position, the locking rod 2 is rotated so that the locking post 21 passes into the corresponding locking groove 22, thereby locking the telescopic fence 1 after it has been stretched.

[0043] A telescopic crossbar 3 is provided between two adjacent vertical bars 11. The telescopic crossbar 3 includes a middle bar 31 and two end bars 32. The two ends of the middle bar 31 slide inside the two end bars 32.

[0044] A water spraying assembly is provided on the telescopic crossbar 3. The water spraying assembly includes a water spraying tank 4, which includes a middle tank 41 and two end tanks 42. The two ends of the middle tank 41 are open, and the end of the two end tanks 42 that is close to each other is open. The two ends of the middle tank 41 slide inside the two end tanks 42. The middle tank 41 is provided with a plurality of first water spraying holes 411, and the two end tanks 42 are provided with a plurality of second water spraying holes 421. During the extension and retraction of the water spraying tank 4 with the telescopic crossbar 3, the first water spraying holes 411 are aligned with the corresponding second water spraying holes 421.

[0045] The top surface of the middle rod 31 is provided with a first water pipe 311, and the side of the middle rod 31 near the water tank 4 is provided with a first water outlet pipe 312. The top surface of the two end rods 32 is provided with a second water pipe 321, and the side of the two end rods 32 near the water tank 4 is provided with a second water outlet pipe 322. The middle rod 31 is provided with a first water conveying channel. The top end of the first water conveying channel is connected to the first water pipe 311, and the side end of the first water conveying channel is connected to the first water outlet pipe 312. The two end rods 32 are provided with a second water conveying channel. The top end of the second water conveying channel is connected to the second water pipe 321, and the side end of the second water conveying channel is connected to the second water outlet pipe 322.

[0046] The top of the first water pipe 311 and the second water pipe 321 are connected to a water supply pipe 33. One end of the water supply pipe 33 is sealed, and the other end of the water supply pipe 33 is connected to a water source. The water source is pumped into the water supply pipe 33 by a water pump. The water supply pipe 33 is connected to all the first water pipes 311 and the second water pipes 321. The top surface of the intermediate rod 31 is provided with a first connecting hole 313 that connects to the second water pipe 321. Multiple first connecting holes 313 are equidistantly arranged along the length of the intermediate rod 31. Multiple second connecting holes 314 that connect to the second water pipe 321 are provided on the side of the intermediate rod 31 near the water tank 4. During the extension and retraction of the water tank 4 with the telescopic crossbar 3, the second water pipe 321 is aligned with the corresponding first connecting hole 313, and the second water outlet pipe 322 is aligned with the corresponding second connecting hole 314.

[0047] A first water inlet pipe 412 is provided on the side of the middle box 41 near the middle rod 31, and a second water inlet pipe 422 is provided on the side of the two end boxes 42 near the two end rods 32. The first water inlet pipe 412 is connected to and communicates with the first water outlet pipe 312 through a connector, and the second water inlet pipe 422 is connected to and communicates with the second water outlet pipe 322 through a connector. A clearance groove 413 communicating with the second water inlet pipe 422 is opened on the side of the middle box 41 near the middle rod 31. The clearance groove 413 is located inside the two end boxes 42. During the extension and retraction of the water spray box 4 with the telescopic crossbar 3, the clearance groove 413 is always connected to the second water outlet pipe 322.

[0048] As needed, the telescopic fence 1 extends and retracts, and the telescopic crossbar 3 extends and retracts accordingly. The water tank 4 extends and retracts, and the water source is pumped by the water pump into the water supply pipe 33. The water supply pipe 33 enters the intermediate box 41 through the first water pipe 311, the middle rod 31, the first water outlet pipe 312, and the first water inlet pipe 412, and sprays out through the first water spray hole 411. The water supply pipe 33 enters the two end boxes 42 through the second water pipe 321, the two end rods 32, the second water outlet pipe 322, and the second water inlet pipe 422, and sprays out through the second water spray hole 421. When the fence extends and retracts, the spray range of the nozzle can be changed, which increases the dust removal range and thus improves the dust removal effect.

[0049] A sealing groove is formed on the inner wall of one end of the relief groove 413 along its length. A sealing plate 414 is slidably disposed in the sealing groove. The two sides of the sealing plate 414 along its width are in contact with the inner walls of the relief groove 413 along its width. The end of the sealing plate 414 located outside the sealing groove is fixedly connected to the inner wall of the two end housings 42 through a connecting plate 415. When the water tank 4 extends or retracts, the sealing plate 414 partially seals the relief groove 413 to prevent the relief groove 413 from sliding outside the two end housings 42 and causing water leakage.

[0050] The water spray tank 4 is rotatably connected to the telescopic crossbar 3. A rotating assembly 5, which drives the water spray tank 4 to rotate, is installed on the vertical rod 11. The rotating assembly 5 includes a swing rod 51 and a rotating motor 52. One end of the swing rod 51 is rotatably connected to the side wall of the two end tanks 42, and the other end of the swing rod 51 is rotatably connected to the vertical rod 11 via a rotating rod 53. The swing rod 51 and the rotating rod 53 are fixedly connected, and the rotating rod 53 is rotatably connected to the vertical rod 11. The rotating motor 52 is installed on the vertical rod 11, and the output shaft of the rotating motor 52 is connected to the rotating rod 53 via a synchronous belt 54. The synchronous belt 54 is simultaneously sleeved on the output shaft of the rotating motor 52 and the rotating rod 53 and kept taut. The rotating motor 52 drives the rotating rod 53 to rotate, causing it to swing, thereby causing the water spray tank 4 to swing, thus increasing the water spray range, increasing the dust removal range, and thus improving the dust removal effect.

[0051] Each end of the water spray tank 4 along its length corresponds to a swing rod 51, and each swing rod 51 corresponds to a rotating rod 53, a rotating motor 52, and a synchronous belt 54, which improves the stability of the water spray tank 4's swing.

[0052] An auxiliary shaft 6 is provided between the water tank 4 and the telescopic crossbar 3. The auxiliary shaft 6 is hollow. The first water outlet pipe 312 and the second water outlet pipe 322 are fixedly connected to the auxiliary shaft 6 and communicate with the inside of the auxiliary shaft 6.

[0053] An auxiliary port 61 is provided on the side of the auxiliary shaft 6 near the water spray assembly. An arc plate 7 is rotatably provided at the auxiliary port 61. The arc of the arc plate 7 is greater than the arc of the auxiliary port 61. The inner peripheral wall of the arc plate 7 fits against the outer peripheral wall of the auxiliary shaft 6. The connecting part is a transition pipe 8. The transition pipe 8 is fixedly connected to the outer wall of the arc plate 7 away from the auxiliary shaft 6. The transition pipe 8 is fixed to the corresponding first water inlet pipe 412 and second water inlet pipe 422 by screws.

[0054] The swing arm 51 is a telescopic rod. As the water spray box 4 swings around the central axis of the auxiliary shaft 6, the swing arm 51 extends and retracts.

[0055] When the swing arm 51 swings, it causes the water spray box 4 to swing around the central axis of the auxiliary shaft 6, so that the arc plate 7 slides on the auxiliary shaft 6, keeping the water spray box 4 connected to the auxiliary shaft 6 while preventing water leakage.

[0056] A limiting block 71 is provided on the inner wall of the arc plate 7, and a limiting ring groove 62 is provided on the outer peripheral wall of the auxiliary shaft 6 for the limiting block 71 to slide. Both the limiting block 71 and the limiting ring groove 62 are convex to prevent the arc plate 7 from detaching from the auxiliary shaft 6.

[0057] The top surface of the water spray box 4 is inclined, and the bottom end of the top surface of the water spray box 4 is the end away from the telescopic crossbar 3. The side of the water spray box 4 away from the telescopic crossbar 3 is also inclined. The bottom end of the side of the water spray box 4 away from the telescopic crossbar 3 is further away from the telescopic crossbar 3 than the top end, so that the water spray path first goes up and then down, which improves the water spraying effect and the dust removal effect.

[0058] The first water spray hole 411 and the second water spray hole 421 each include five unit holes, one of which is located at the center of the other four unit holes, so that the water is dispersed and sprayed out, which improves the water spraying effect and the dust removal effect.

[0059] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A construction safety fence with dust removal effect, characterized in that, The system includes a telescopic fence (1), which includes multiple vertical bars (11). A connecting rod assembly is provided between two adjacent vertical bars (11). The connecting rod assembly includes four unit bars (12) forming a rhombus. The four unit bars (12) are rotatably connected in sequence, and the unit bars (12) are also rotatably connected to the adjacent vertical bars (11). A telescopic crossbar (3) is provided between two adjacent vertical bars (11). The telescopic crossbar (3) includes a middle bar (31) and two end bars (32). The two ends of the middle bar (31) slide inside the two end bars (32). A water spraying assembly is provided on the telescopic crossbar (3). The water spraying assembly includes a water spraying tank (4). The water spraying tank (4) includes a middle tank (41) and two end tanks (42). The two ends of the middle tank (41) are open. The end of the two end tanks (42) that are close to each other is open. The two ends of the middle tank (41) slide inside the two end tanks (42). The middle tank (41) is provided with a plurality of first water spraying holes (411). The two end tanks (42) are provided with a plurality of second water spraying holes (421). During the process of the water spraying tank (4) extending and retracting with the telescopic crossbar (3), the first water spraying holes (411) are aligned with the corresponding second water spraying holes (421). The top surface of the intermediate rod (31) is provided with a first water pipe (311), and the side of the intermediate rod (31) near the water tank (4) is provided with a first water outlet pipe (312). The top surface of the two end rods (32) is provided with a second water pipe (321), and the side of the two end rods (32) near the water tank (4) is provided with a second water outlet pipe (322). The interior of the intermediate rod (31) is provided with a first water conveying channel. The top end of the first water conveying channel is connected to the first water pipe (311), and the side end of the first water conveying channel is connected to the first water outlet pipe (312). The interior of the two end rods (32) is provided with a second water conveying channel. The top end of the second water conveying channel is connected to the second water pipe (321), and the side end of the second water conveying channel is connected to the second water outlet pipe (322). The top of the first water pipe (311) and the second water pipe (321) are connected to a water delivery pipe (33). One end of the water delivery pipe (33) is sealed, and the other end of the water delivery pipe (33) is connected to a water source. The water source is pumped into the water delivery pipe (33) by a water pump. The water delivery pipe (33) is connected to all the first water pipes (311) and the second water pipes (321). The top surface of the intermediate rod (31) is provided with a first connecting hole (313) that communicates with the second water pipe (321). The first connecting hole (313) is provided at multiple equal intervals along the length direction of the intermediate rod (31). The intermediate rod (31) has multiple second connecting holes (314) that communicate with the second water pipe (321) on the side near the water tank (4). During the extension and retraction of the water tank (4) with the telescopic crossbar (3), the second water pipe (321) is aligned with the corresponding first connecting hole (313) and the second water outlet pipe (322) is aligned with the corresponding second connecting hole (314). The middle box (41) is provided with a first water inlet pipe (412) on the side near the middle rod (31), and the two end boxes (42) are provided with a second water inlet pipe (422) on the side near the two end rods (32). The first water inlet pipe (412) is connected to the first water outlet pipe (312) through a connector, and the second water inlet pipe (422) is connected to the second water outlet pipe (322) through a connector. The middle box (41) is provided with a clearance groove (413) that communicates with the second water inlet pipe (422) on the side near the middle rod (31). The clearance groove (413) is located inside the two end boxes (42). During the extension and retraction of the water spray box (4) with the telescopic crossbar (3), the clearance groove (413) is always connected to the second water outlet pipe (322).

2. The construction safety fence with dust removal effect according to claim 1, characterized in that: A sealing groove is provided on the inner wall of one end of the relief groove (413) along the length direction. A sealing plate (414) is slidably disposed in the sealing groove. The two sides of the sealing plate (414) along the width direction are in contact with the inner walls of the relief groove (413) on both sides along the width direction. The end of the sealing plate (414) located outside the sealing groove is fixedly connected to the inner walls of the two end boxes (42) through a connecting plate (415).

3. The construction safety fence with dust removal effect according to claim 1, characterized in that: The water tank (4) is rotatably connected to the telescopic crossbar (3). A rotating assembly (5) for driving the water tank (4) to rotate is provided on the vertical rod (11). The rotating assembly (5) includes a swing rod (51) and a rotating motor (52). One end of the swing rod (51) is rotatably connected to the side wall of the two end tanks (42). The other end of the swing rod (51) is rotatably connected to the vertical rod (11) through a rotating rod (53). The swing rod (51) and the rotating rod (53) are fixedly connected. The rotating rod (53) is rotatably connected to the vertical rod (11). The rotating motor (52) is installed on the vertical rod (11). The output shaft of the rotating motor (52) is connected to the rotating rod (53) through a synchronous belt (54). The synchronous belt (54) is simultaneously sleeved on the output shaft of the rotating motor (52) and the rotating rod (53) and kept taut.

4. The construction safety fence with dust removal effect according to claim 3, characterized in that: Each end of the water spray tank (4) in the length direction corresponds to a swing rod (51), and each swing rod (51) corresponds to a rotating rod (53), a rotating motor (52), and a synchronous belt (54).

5. The construction safety fence with dust removal effect according to claim 4, characterized in that: An auxiliary shaft (6) is provided between the water tank (4) and the telescopic crossbar (3). The auxiliary shaft (6) is hollow. The first water outlet pipe (312) and the second water outlet pipe (322) are fixedly connected to the auxiliary shaft (6) and communicate with the inside of the auxiliary shaft (6). The auxiliary shaft (6) has an auxiliary port (61) on the side near the water spray assembly. An arc plate (7) is rotatably provided at the auxiliary port (61). The arc of the arc plate (7) is greater than the arc of the auxiliary port (61). The inner peripheral wall of the arc plate (7) is in contact with the outer peripheral wall of the auxiliary shaft (6). The connecting piece is a transition pipe (8). The transition pipe (8) is fixedly connected to the outer wall of the arc plate (7) on the side away from the auxiliary shaft (6). The transition pipe (8) is fixed to the corresponding first water inlet pipe (412) and second water inlet pipe (422) by screws. The swing arm (51) is a telescopic rod. As the water tank (4) swings around the central axis of the auxiliary shaft (6), the swing arm (51) extends and retracts.

6. The construction safety fence with dust removal effect according to claim 5, characterized in that: A limiting block (71) is provided on the inner wall of the arc plate (7), and a limiting ring groove (62) for the limiting block (71) to slide is provided on the outer peripheral wall of the auxiliary shaft (6).

7. The construction safety fence with dust removal effect according to claim 6, characterized in that: Both the limiting block (71) and the limiting ring groove (62) are convex.

8. The construction safety fence with dust removal effect according to claim 1, characterized in that: The top surface of the water tank (4) is inclined, and the bottom end of the top surface of the water tank (4) is the end away from the telescopic crossbar (3). The side of the water tank (4) away from the telescopic crossbar (3) is also inclined. The bottom end of the side of the water tank (4) away from the telescopic crossbar (3) is further away from the telescopic crossbar (3) than the top end.

9. The construction safety fence with dust removal effect according to claim 1, characterized in that: The first water spray hole (411) and the second water spray hole (421) each include five unit holes, one of which is located at the center of the other four unit holes.

10. The construction safety fence with dust removal effect according to claim 1, characterized in that: One of the vertical rods (11) is rotatably equipped with a locking rod (2), and the other vertical rod (11) is equipped with a locking post (21). The locking rod (2) has a locking groove (22) for the locking post (21) to pass through. Multiple locking grooves (22) are equidistantly arranged along the length of the locking rod (2). When the telescopic fence (1) is stretched to a suitable position, the locking rod (2) is rotated so that the locking post (21) passes into the corresponding locking groove (22).

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