Spraying device for foundation pit construction
By introducing an insulation shell and antifreeze design into the sprinkler system, the problem of the sprinkler system freezing easily during winter construction is solved, achieving antifreeze protection and easy disassembly of the nozzles, and improving the service life and dust prevention effect of the sprinkler system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-07
AI Technical Summary
Existing sprinkler systems are prone to freezing during winter construction, which affects sprinkler operations and may damage water pipes and nozzles, failing to effectively prevent dust from spreading.
A spray device with an insulation shell and antifreeze was designed. The nozzle can be raised and lowered and is equipped with a cover plate. Combined with a return spring and a connecting mechanism, it achieves antifreeze effect and facilitates pipe disassembly and replacement.
It effectively prevents the nozzles from freezing, extends the service life of the spraying device, reduces the workload of construction workers, and ensures the continuity of spraying operations and dust control.
Smart Images
Figure CN224086359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foundation pit construction technology, and more specifically, to a spraying device for foundation pit construction. Background Technology
[0002] The retaining structures, groundwater control, and environmental protection measures required to ensure the safety and stability of the underground space formed by excavation from the ground during the construction of underground structures are called foundation pit engineering. At present, the simplest and most economical way to construct foundation pits is to excavate with a wide slope, but it is often limited by site conditions and the surrounding environment. Therefore, it is necessary to design a support system to ensure the smooth progress of construction and to better protect the surrounding environment.
[0003] The spray system is a dust suppression system that uses water mist to absorb dust. It mainly consists of a water supply pipe, a pressurized water pump, and atomizing nozzles. Currently, spray systems are usually installed on the top of the construction site fence. Since the fence serves as the boundary of the construction site, dust must pass through this area when it escapes outward. The sprayed water mist can form a dust barrier, intercepting the path of dust diffusion. At the same time, installing it on the fence can also avoid obstructing the operation of construction machinery.
[0004] However, during winter construction, the temperature is low. When spraying operations are required during foundation pit construction, the current spraying equipment is usually installed on top of the enclosure. It will be exposed to the air for a long time at night, which will cause the nozzles and water pipes to freeze, affecting the spraying operation and potentially damaging the water pipes and nozzles. Therefore, it is necessary to improve and optimize it. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a spraying device for foundation pit construction, which has the advantage of good anti-freezing effect.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a spraying device for foundation pit construction, including a fence, a water conveying mechanism provided on the rear side of the fence, the water conveying mechanism including a water pump provided on the left side of the fence, an inlet pipe installed at one end of the water pump, a spraying pipe fixedly connected to the top of the inlet pipe, a fixing clamp fixedly installed on the rear side wall of the fence, the spraying pipe fixedly installed inside the fixing clamp, and a spraying mechanism provided on the top of the spraying pipe;
[0007] The spraying mechanism includes an insulation shell fixedly installed on the top of the spray pipe. The insulation shell and the fixing clamp are interconnected. An atomizing nozzle is movably installed inside the insulation shell. The bottom of the atomizing nozzle seals the bottom of the insulation shell. Water inlet grooves are provided on both the left and right sides of the bottom of the atomizing nozzle. A connecting groove is provided on the inner wall of the insulation shell. A cover plate is fixedly installed on the top of the atomizing nozzle. A sealing gasket is fixedly installed on the upper part of the inside of the insulation shell. The sealing gasket and the outer wall of the atomizing nozzle are in close contact with each other.
[0008] As a preferred technical solution of this utility model, a connecting pipe is provided between the two sets of water inlet pipes, and the water inlet pipe and the connecting pipe are detachably connected by a connecting mechanism.
[0009] As a preferred embodiment of this utility model, guide grooves are provided on both the left and right sides of the inner wall of the heat insulation shell, and protrusions are fixedly installed on both the left and right sides of the atomizing nozzle. The protrusions are slidably installed inside the guide grooves, and the protrusions and the inner wall of the guide grooves are elastically connected by a return spring.
[0010] As a preferred embodiment of this utility model, the inlet pipe, connecting pipe and spray pipe are all provided with an insulation layer inside, and the insulation layer is filled with antifreeze.
[0011] As a preferred technical solution of this utility model, the connecting mechanism includes a second connecting head fixedly installed at the left and right ends of the connecting pipe. The outer wall of the second connecting head is provided with a telescopic groove. An inclined wedge is movably installed inside the telescopic groove. The bottom of the inclined wedge and the telescopic groove are elastically connected by a first spring.
[0012] As a preferred technical solution of this utility model, the connecting mechanism further includes a first connector fixedly installed at one end of the two sets of water inlet pipes. The first connector has an installation groove inside, and the installation groove and the telescopic groove are in corresponding positions. The wedge penetrates into the installation groove.
[0013] As a preferred embodiment of this utility model, a limiting shell is fixedly installed on the top of the first connector, and a button is movably installed inside the limiting shell.
[0014] As a preferred embodiment of this utility model, the bottom of the button extends through the mounting groove and contacts the wedge, and the button and the outer wall of the first connector are elastically connected by a second spring.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. This utility model, through the double-sided design of multiple water pipes, enables the water pipes to not only transport spray water but also protect the pipes through the antifreeze inside the insulation layer. The lifting design of the atomizing nozzles allows the nozzles to automatically rise and spray when the water pump is running. After the water pump stops, the cover seals the top of the insulation shell. This not only prevents dust from clogging the nozzles when they are not operating but also, through the material properties of the insulation shell, avoids the impact of cold air on the atomizing nozzles, effectively improving their service life.
[0017] 2. This utility model, through the design of the wedge, allows workers to simply insert the wedge into the first connector and make adjustments to achieve the connection between the two sets of pipes. When facing construction of large foundation pits, it can effectively reduce the workload of workers. Furthermore, the wedge can be displaced by pressing a button, which can further dismantle the two sets of pipes, facilitating post-construction recovery operations and also making it convenient to replace damaged pipes. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the water conveying mechanism of this utility model;
[0020] Figure 3 This is a schematic diagram of the water inlet pipe structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the spray mechanism of this utility model;
[0022] Figure 5 This is a schematic diagram of the sealing gasket structure of this utility model;
[0023] Figure 6 This is a schematic diagram of the connection mechanism of this utility model;
[0024] Figure 7 This is a schematic diagram of the button structure of this utility model.
[0025] In the diagram: 1. Enclosure; 2. Water supply mechanism; 21. Water pump; 22. Inlet pipe; 23. Connecting pipe; 24. Spray pipe; 25. Fixing clamp; 26. Insulation layer; 3. Spraying mechanism; 31. Guide groove; 32. Atomizing nozzle; 33. Protrusion; 34. Sealing gasket; 35. Connecting groove; 36. Inlet groove; 37. Return spring; 38. Insulation shell; 39. Cover plate; 4. Connecting mechanism; 41. First connector; 42. Second connector; 43. Telescopic groove; 44. Mounting groove; 45. Wedge; 46. Limiting shell; 47. Button; 48. First spring; 49. Second spring. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] like Figures 1 to 7 As shown, this utility model provides a spraying device for foundation pit construction, including a enclosure 1, a water conveying mechanism 2 is provided on the rear side of the enclosure 1, the water conveying mechanism 2 includes a water pump 21 provided on the left side of the enclosure 1, an inlet pipe 22 is installed at one end of the water pump 21, a spraying pipe 24 is fixedly connected to the top of the inlet pipe 22, a fixing clamp 25 is fixedly installed on the rear side wall of the enclosure 1, the spraying pipe 24 is fixedly installed inside the fixing clamp 25, and a spraying mechanism 3 is provided on the top of the spraying pipe 24;
[0028] The spraying mechanism 3 includes an insulation shell 38 fixedly installed on the top of the spray pipe 24. The insulation shell 38 and the fixing clamp 25 are interconnected. An atomizing nozzle 32 is movably installed inside the insulation shell 38. The bottom of the atomizing nozzle 32 seals the bottom of the insulation shell 38. Water inlet grooves 36 are provided on both the left and right sides of the bottom of the atomizing nozzle 32. A connecting groove 35 is provided on the inner wall of the insulation shell 38. A cover plate 39 is fixedly installed on the top of the atomizing nozzle 32. A sealing gasket 34 is fixedly installed on the upper part of the inside of the insulation shell 38. The sealing gasket 34 and the outer wall of the atomizing nozzle 32 are in contact with each other.
[0029] When dust suppression spraying is required, the workers first install the spray pipes 24 on the back of the enclosure 1 using the fixing clamps 25. Then, they connect the water inlet pipes 22 at the bottom of one set of spray pipes 24 to the water pump 21. At this time, the workers can connect multiple sets of water inlet pipes 22 to each other through the connecting pipes 23 using the connecting mechanism 4. Finally, after the workers supply the spraying water source to the water pump 21 and start the water pump 21, the spraying operation can begin. When the water pump 21 is operating, water will enter the interior of the spray pipes 24 through the water inlet pipes 22 and the connecting pipes 23. Furthermore, the spraying water will enter the interior of the insulation shell 38 and push the atomizing nozzles 32 upward. The atomizing nozzles 32 will continuously move upward along the guide groove 31 until the bottom of the atomizing nozzles 32 moves to the connecting groove 35. At this time, the spray nozzles of the atomizing nozzles 32 will move to the outside of the insulation shell 38. Figure 5As shown, the spray water enters the atomizing nozzle 32 through the connecting groove 35 and the water inlet groove 36, and is finally sprayed out to achieve the spraying operation. After the spraying operation is completed, the staff stops the water pump 21. At this time, the atomizing nozzle 32, which has lost the water supply, will be reset by the elastic potential energy of the reset spring 37. The cover plate 39 then covers the heat preservation shell 38 and seals it with the sealing gasket 34.
[0030] By designing multiple water pipes on both sides, the pipes can not only transport spray water, but also be protected by the antifreeze inside the insulation layer 26. The atomizing nozzle 32 is designed to rise automatically when the water pump 21 is running, and when the water pump 21 stops, the cover plate 39 seals the top of the insulation shell 38. This not only prevents dust from clogging the nozzle when it is not running, but also, through the material properties of the insulation shell 38, prevents cold air from affecting the atomizing nozzle 32, effectively improving its service life.
[0031] A connecting pipe 23 is provided between the two sets of water inlet pipes 22, and the water inlet pipes 22 and the connecting pipe 23 are detachably connected by a connecting mechanism 4.
[0032] Multiple sets of water inlet pipes 22 are connected by connecting pipe 23, allowing staff to adjust the spray spacing by controlling the length of connecting pipe 23.
[0033] The inner wall of the heat insulation shell 38 is provided with guide grooves 31 on both the left and right sides, and the atomizing nozzle 32 is fixedly installed with protrusions 33 on both the left and right sides. The protrusions 33 are slidably installed inside the guide grooves 31, and the protrusions 33 and the inner wall of the guide grooves 31 are elastically connected by a return spring 37.
[0034] By utilizing the elastic potential energy of the return spring 37, the water pump 21 is ensured to return the atomizing nozzle 32 to the interior of the insulation shell 38 after it stops operating, thus protecting the atomizing nozzle 32.
[0035] Among them, the inlet pipe 22, the connecting pipe 23 and the spray pipe 24 are all provided with an insulation layer 26, and the insulation layer 26 is filled with antifreeze.
[0036] The internal antifreeze of the insulation layer 26 allows the water pipes to transport spray water normally even in cold weather.
[0037] The connecting mechanism 4 includes a second connector 42 fixedly installed at the left and right ends of the connecting pipe 23. The outer wall of the second connector 42 is provided with a telescopic groove 43. An inclined wedge 45 is movably installed inside the telescopic groove 43. The bottom of the inclined wedge 45 and the telescopic groove 43 are elastically connected by a first spring 48.
[0038] When connecting the inlet pipe 22 and the connecting pipe 23, the worker inserts the second connector 42 into the inside of the first connector 41. At this time, the wedge 45 is squeezed into the inside of the telescopic groove 43 by the inner wall of the first connector 41. When the second connector 42 is fully inserted into the inside of the first connector 41, the telescopic groove 43 and the mounting groove 44 are aligned with each other. The wedge 45 will then enter the inside of the mounting groove 44 through the elastic potential energy of the first spring 48 to complete the fixation. When disassembly is required, the worker presses the button 47, so that the bottom of the button 47 enters the inside of the mounting groove 44 and squeezes the wedge 45. The wedge 45 moves downward into the inside of the telescopic groove 43 under force, and at this time the first connector 41 and the second connector 42 can be removed.
[0039] The design of the wedge 45 allows workers to simply insert the wedge 45 into the first connector 41 and make adjustments to achieve the connection between the two sets of pipes. This effectively reduces the workload of workers when facing large foundation pit construction. Furthermore, the wedge 45 can be displaced by pressing the button 47, allowing for the dismantling of the two sets of pipes and facilitating post-construction recovery operations. It also makes it easier to replace damaged pipes.
[0040] The connecting mechanism 4 also includes a first connector 41 fixedly installed at one end of the two sets of water inlet pipes 22. The first connector 41 has an installation groove 44 inside. The installation groove 44 and the telescopic groove 43 are in corresponding positions. The wedge 45 penetrates into the installation groove 44.
[0041] Among them, a limiting shell 46 is fixedly installed on the top of the first connector 41, and a button 47 is movably installed inside the limiting shell 46.
[0042] The bottom of the button 47 extends into the mounting groove 44 and contacts the wedge 45. The button 47 and the outer wall of the first connector 41 are elastically connected by the second spring 49.
[0043] The design of button 47 allows operators to disconnect the connection between the first connector 41 and the second connector 42 simply by pressing button 47.
[0044] Working principle and usage process of this utility model:
[0045] When dust suppression spraying is required, the workers first install the spray pipes 24 on the back of the enclosure 1 using the fixing clamps 25. Then, they connect the water inlet pipes 22 at the bottom of one set of spray pipes 24 to the water pump 21. At this time, the workers can connect multiple sets of water inlet pipes 22 to each other through the connecting pipes 23 using the connecting mechanism 4. Finally, after the workers supply the spraying water source to the water pump 21 and start the water pump 21, the spraying operation can begin. When the water pump 21 is operating, water will enter the interior of the spray pipes 24 through the water inlet pipes 22 and the connecting pipes 23. Furthermore, the spraying water will enter the interior of the insulation shell 38 and push the atomizing nozzles 32 upward. The atomizing nozzles 32 will continuously move upward along the guide groove 31 until the bottom of the atomizing nozzles 32 moves to the connecting groove 35. At this time, the spray nozzles of the atomizing nozzles 32 will move to the outside of the insulation shell 38. Figure 5 As shown, the spray water enters the atomizing nozzle 32 through the connecting groove 35 and the water inlet groove 36, and is finally sprayed out to achieve the spraying operation. After the spraying operation is completed, the staff stops the water pump 21. At this time, the atomizing nozzle 32, which has lost the water supply, will be reset by the elastic potential energy of the reset spring 37. The cover plate 39 then covers the heat preservation shell 38 and seals it with the sealing gasket 34.
[0046] When connecting the inlet pipe 22 and the connecting pipe 23, the worker inserts the second connector 42 into the inside of the first connector 41. At this time, the wedge 45 is squeezed into the inside of the telescopic groove 43 by the inner wall of the first connector 41. When the second connector 42 is fully inserted into the inside of the first connector 41, the telescopic groove 43 and the mounting groove 44 are aligned with each other. The wedge 45 will then enter the inside of the mounting groove 44 through the elastic potential energy of the first spring 48 to complete the fixation. When disassembly is required, the worker presses the button 47, so that the bottom of the button 47 enters the inside of the mounting groove 44 and squeezes the wedge 45. The wedge 45 moves downward into the inside of the telescopic groove 43 under force, and at this time the first connector 41 and the second connector 42 can be removed.
[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sprinkler system for foundation pit construction, comprising a perimeter fence (1), characterized in that: A water conveying mechanism (2) is provided on the rear side of the enclosure (1). The water conveying mechanism (2) includes a water pump (21) located on the left side of the enclosure (1). One end of the water pump (21) is equipped with a water inlet pipe (22). A spray pipe (24) is fixedly connected to the top of the water inlet pipe (22). A fixing clamp (25) is fixedly installed on the rear side wall of the enclosure (1). The spray pipe (24) is fixedly installed inside the fixing clamp (25). A spraying mechanism (3) is provided on the top of the spray pipe (24). The spraying mechanism (3) includes an insulation shell (38) fixedly installed on the top of the spray pipe (24). The insulation shell (38) and the fixing clamp (25) are interconnected. An atomizing nozzle (32) is movably installed inside the insulation shell (38). The bottom of the atomizing nozzle (32) seals the bottom of the insulation shell (38). Water inlet grooves (36) are provided on both the left and right sides of the bottom of the atomizing nozzle (32). A connecting groove (35) is provided on the inner wall of the insulation shell (38). A cover plate (39) is fixedly installed on the top of the atomizing nozzle (32). A sealing gasket (34) is fixedly installed on the upper part of the inside of the insulation shell (38). The sealing gasket (34) and the outer wall of the atomizing nozzle (32) are in contact with each other.
2. The spraying device for foundation pit construction according to claim 1, characterized in that: A connecting pipe (23) is provided between the two sets of water inlet pipes (22), and the water inlet pipes (22) and the connecting pipe (23) are detachably connected by a connecting mechanism (4).
3. The spraying device for foundation pit construction according to claim 1, characterized in that: The inner wall of the heat insulation shell (38) is provided with guide grooves (31) on both the left and right sides. The atomizing nozzle (32) is fixedly installed with protrusions (33) on both the left and right sides. The protrusions (33) are slidably installed inside the guide grooves (31). The protrusions (33) and the inner wall of the guide grooves (31) are elastically connected by a return spring (37).
4. The spraying device for foundation pit construction according to claim 1, characterized in that: The inlet pipe (22), connecting pipe (23) and spray pipe (24) are all provided with an insulation layer (26), and the insulation layer (26) is filled with antifreeze.
5. A spraying device for foundation pit construction according to claim 2, characterized in that: The connecting mechanism (4) includes a second connector (42) fixedly installed at the left and right ends of the connecting pipe (23). The outer wall of the second connector (42) is provided with a telescopic groove (43). An inclined wedge (45) is movably installed inside the telescopic groove (43). The bottom of the inclined wedge (45) and the telescopic groove (43) are elastically connected by a first spring (48).
6. A spraying device for foundation pit construction according to claim 5, characterized in that: The connecting mechanism (4) also includes a first connector (41) fixedly installed at one end of the two sets of water inlet pipes (22). The first connector (41) has an installation groove (44) inside. The installation groove (44) and the telescopic groove (43) are in corresponding positions. The wedge (45) penetrates into the installation groove (44).
7. A spraying device for foundation pit construction according to claim 6, characterized in that: A limiting shell (46) is fixedly installed on the top of the first connector (41), and a button (47) is movably installed inside the limiting shell (46).
8. A spraying device for foundation pit construction according to claim 7, characterized in that: The bottom of the button (47) extends into the mounting groove (44) and contacts the wedge (45). The button (47) and the outer wall of the first connector (41) are elastically connected by a second spring (49).