Automatic water spraying system for gravel grading construction
By designing an automatic water spraying system and utilizing the combination of sliders and screw conveyors, the problem of uneven water spraying during gravel gradation construction was solved, achieving precise adjustment of gravel moisture content and improved compaction effect.
Patent Information
- Application Number
- CN202520149993.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing gravel gradation construction equipment is difficult to achieve uniform water spraying after paving, resulting in inaccurate adjustment of gravel moisture content, which affects compaction effect and efficiency.
An automatic water spraying system was designed, comprising a discharge hopper, chute, slider, nozzle, and screw conveyor. Through the cooperation of electric push rod and motor, the reciprocating movement of slider and nozzle and the tumbling discharge of screw conveyor are realized, ensuring uniform spraying and mixing of sand and gravel.
It improves the uniformity of sand and gravel spraying and mixing efficiency, and can better regulate the moisture content of sand and gravel, thereby improving compaction effect and construction efficiency.
Smart Images
Figure CN223823969U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road construction technology, and in particular to an automatic water spraying system for gravel gradation construction. Background Technology
[0002] Gravel gradation refers to the composition ratio of particles of different sizes in gravel (a mixture of sand and gravel). Good gradation can enable gravel to achieve optimal properties such as density, stability and permeability during use. For example, in road base courses, appropriate gravel gradation can effectively distribute vehicle loads and provide stable load-bearing capacity.
[0003] Paving: First, the construction site must be cleaned, the base compacted and leveled. When paving graded gravel, a paver is generally used.
[0004] Water spraying: A device that can automatically control water spraying operation. It is mainly used to spray water on the gravel that is being laid or treated. Its purpose is to adjust the moisture content of the gravel in order to achieve the best compaction effect.
[0005] Compaction: After paving is completed, compaction should be carried out in a timely manner. Initial compaction is generally carried out by static compaction with a light roller, and the number of static compaction passes is generally 1-2 passes. The purpose is to initially stabilize the graded gravel.
[0006] Quality Inspection and Control: During construction, the compaction degree must be tested. The compaction degree is one of the key indicators for evaluating the construction quality of graded sand and gravel. It is generally tested using the sand filling method or the nuclear density meter method.
[0007] When using existing equipment, the water spraying method is often to manually irrigate the spread gravel. However, irrigation after spreading is difficult to achieve uniform irrigation of the underlying gravel and it is difficult to accurately adjust the moisture content of the gravel to achieve the best compaction effect, resulting in insufficient efficiency. Utility Model Content
[0008] (a) Technical problems to be solved
[0009] To address the shortcomings of existing technologies, this utility model provides an automatic water spraying system for gravel gradation construction, which solves the technical problem of insufficient processing efficiency of existing devices.
[0010] (II) Technical Solution
[0011] To achieve the above objectives, this utility model provides the following technical solution:
[0012] An automatic water spraying system for gravel gradation construction includes a discharge hopper, the discharge hopper having a chute inside;
[0013] A protective sliding water spray structure is slidably installed inside the chute;
[0014] The protective sliding water spray structure includes a slider, the length of which is greater than the length of the slider. The slider can slide horizontally and vertically inside the slider. A connecting block is fixedly installed at the upper end of the slider, and a nozzle is fixedly installed at the upper end. The nozzle surface has multiple water outlets, and a water pipe is provided at the upper end of the nozzle. Liquid can be sprayed through the water outlets via the water pipe. A storage groove is provided on the side wall of the slider, and an electric push rod is fixedly installed inside the storage groove. The output shaft of the electric push rod is fixedly installed with the slider, and the output shaft of the electric push rod can push the slider to slide inside the slider. Limit switches are symmetrically provided on the side wall of the slider, and both limit switches can control the extension and retraction of the electric push rod. Multiple through slots are provided through the inner wall of the slider.
[0015] Preferably, a controller is fixedly installed on the surface of the discharge hopper, and a processing chamber is provided inside the discharge hopper.
[0016] Preferably, motors are symmetrically fixedly installed on the side wall of the discharge hopper, a transfer block is fixedly installed inside the processing chamber, and a screw conveyor main shaft is fixedly installed between the output shafts of the two motors and the transfer block.
[0017] Preferably, the threads on the two screw conveyor spindles are oriented in opposite directions, and the output shafts of the two motors can drive the screw conveyor spindles to rotate inside the processing chamber. The inner wall of the processing chamber is symmetrically provided with discharge ports, and the two through slots are both located on the side away from the discharge ports.
[0018] Preferably, a bracket is fixedly installed on the side wall of the discharge hopper away from the controller, and a frame is fixedly installed between the upper end of the bracket and the discharge hopper. A conveyor belt assembly is provided inside the frame, and the conveyor belt assembly can send the sand and gravel into the processing chamber.
[0019] (III) Beneficial Effects
[0020] 1. The operator can start the electric push rod through the controller, so that the output shaft of the electric push rod pushes the slider to slide inside the slide groove, and then the slider hits the limit switch inside the slide groove. When the slider hits the limit switch, the limit switch will send a signal to the controller, thereby changing the output mode of the electric push rod, so as to reciprocate the slider, the connecting block on the slider and the nozzle, and thus uniformly spray liquid inside the processing cavity.
[0021] Second, the operator can start the motor through the controller, so that the output shaft of the motor drives the two screw conveyor main shafts to rotate between the transfer blocks, thereby discharging the sand and gravel conveyed by the conveyor belt assembly into the processing chamber to the discharge port. At the same time, the reciprocating movement of the nozzle spraying water, together with the turning and discharging of sand and gravel by the screw conveyor main shaft, can greatly improve the mixing treatment of sand and gravel by the nozzle. Attached Figure Description
[0022] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a three-dimensional exploded view of the structure of this utility model.
[0025] Figure 3 This is a three-dimensional structural diagram of the discharge hopper of this utility model;
[0026] Figure 4 This is an exploded structural diagram of the discharge hopper connection of this utility model;
[0027] Figure 5 This is a cross-sectional view of the discharge hopper of this utility model.
[0028] Legend: 11. Discharge hopper; 12. Slide chute; 13. Slider; 14. Connecting block; 15. Nozzle; 16. Water outlet; 17. Water pipe; 18. Storage trough; 19. Electric push rod; 21. Limit switch; 22. Through slot; 23. Controller; 24. Processing chamber; 25. Motor; 26. Transfer block; 27. Screw conveyor main shaft; 28. Discharge port; 29. Support; 31. Frame; 32. Conveyor belt assembly. Detailed Implementation
[0029] This application provides an automatic water spraying system for gravel gradation construction, effectively solving the technical problem of insufficient processing efficiency in existing devices. The operator can activate the electric push rod via a controller, causing its output shaft to push a slider within a chute. This causes the slider to strike a limit switch inside the chute. When the slider strikes the limit switch, the limit switch sends a signal to the controller, changing the output mode of the electric push rod. This allows the slider, its connecting block, and the nozzle to reciprocate, resulting in uniform liquid spraying inside the processing chamber. The operator can also activate the motor via the controller, causing its output shaft to drive two screw conveyor main shafts to rotate between intermediate blocks. This allows the gravel conveyed by the conveyor assembly to be discharged from the outlet. Simultaneously, the reciprocating water spray from the nozzles, combined with the tumbling and discharging of the gravel by the screw conveyor main shafts, significantly improves the mixing and processing of the gravel by the nozzles.
[0030] Example
[0031] like Figure 1 - Figure 5 As shown, the technical solution in this application embodiment effectively solves the technical problem of insufficient processing efficiency of existing devices. The overall idea is as follows:
[0032] To address the problems existing in the prior art, this utility model provides an automatic water spraying system for gravel gradation construction, including a discharge hopper 11, with a chute 12 inside the discharge hopper 11;
[0033] A protective sliding water spray structure is slidably installed inside the chute 12;
[0034] The protective sliding water spray structure includes a slider 13, the length of the slide groove 12 is greater than the length of the slider 13, the slider 13 can slide horizontally and vertically inside the slide groove 12, a connecting block 14 is fixedly installed at the upper end of the slider 13, a nozzle 15 is fixedly installed at the upper end, the nozzle 15 has multiple water outlets 16 on its surface, and a water pipe 17 is provided at the upper end of the nozzle 15, and the water outlets 16 can spray liquid through the water pipe 17;
[0035] When in use, the staff can first connect the water pipe 17 to the water pump port of the water supply unit, and then the water outlet 16 on the nozzle 15 will spray water into the processing chamber 24.
[0036] A storage slot 18 is provided on the side wall of the slide 12. An electric push rod 19 is fixedly installed inside the storage slot 18. The output shaft of the electric push rod 19 is fixedly installed with the slider 13. The output shaft of the electric push rod 19 can push the slider 13 to slide inside the slide 12. Limit switches 21 are symmetrically provided on the side wall of the slide 12. Both limit switches 21 can control the extension and retraction of the electric push rod 19.
[0037] The operator can activate the electric push rod 19 via the controller 23, causing the output shaft of the electric push rod 19 to push the slider 13 to slide inside the slide groove 12. This causes the slider 13 to strike the limit switch 21 inside the slide groove 12. When the slider 13 strikes the limit switch 21, the limit switch 21 will send a signal to the controller 23, thereby changing the output mode of the electric push rod 19. This allows the slider 13, the connecting block 14 on the slider 13, and the nozzle 15 to move back and forth, thus enabling uniform liquid spraying inside the processing cavity 24.
[0038] Multiple through slots 22 are provided through the inner wall of the chute 12, and a controller 23 is fixedly installed on the surface of the discharge hopper 11.
[0039] By setting the through groove 22 and placing it on the side away from the discharge port 28, the conveyor belt assembly 32 can convey gravel. If gravel accidentally enters the chute 12, the movement of the slider 13 will squeeze and impact the gravel, causing it to fall through the through groove 22 to the outside of the chute 12.
[0040] The discharge hopper 11 has a processing chamber 24 inside. Motors 25 are symmetrically fixedly installed on the side wall of the discharge hopper 11. A transfer block 26 is fixedly installed inside the processing chamber 24. A screw conveyor main shaft 27 is fixedly installed between the output shaft of the two motors 25 and the transfer block 26. The threads on the two screw conveyor main shafts 27 are opposite in orientation. The output shafts of the two motors 25 can drive the screw conveyor main shaft 27 to rotate inside the processing chamber 24. The inner wall of the processing chamber 24 has symmetrically through-hole discharge ports 28. Two through slots 22 are opened on the side away from the discharge ports 28.
[0041] The operator can start the motor 25 through the controller 23, so that the output shaft of the motor 25 drives the two screw conveyor main shafts 27 to rotate between the transfer block 26, thereby discharging the sand and gravel conveyed by the conveyor belt assembly 32 into the processing chamber 24 to the discharge port 28. At the same time, the reciprocating movement of the nozzle 15 spraying water, combined with the turning and discharging of the sand and gravel by the screw conveyor main shaft 27, can greatly improve the mixing and processing of the sand and gravel by the nozzle 15.
[0042] A bracket 29 is fixedly installed on the side wall of the discharge hopper 11 away from the controller 23. A frame 31 is fixedly installed between the upper end of the bracket 29 and the discharge hopper 11. A conveyor belt assembly 32 is provided inside the frame 31. The conveyor belt assembly 32 can send the sand and gravel into the processing chamber 24.
[0043] Workers can first place the gravel on the conveyor belt assembly 32 and turn on the conveyor belt assembly 32, and then transport the gravel into the processing chamber 24 through the conveyor belt assembly 32, which facilitates the delivery of the gravel.
[0044] Working principle:
[0045] The first step is to connect the water pipe 17 to the water pump port of the water supply unit and spray water from the outlet 16 of the nozzle 15 into the processing chamber 24. The electric push rod 19 is started by the controller 23. Its output shaft pushes the slider 13 to slide in the slide groove 12. The slider 13 hits the limit switch 21. The limit switch 21 sends a signal to the controller 23 to change the output mode of the electric push rod 19, which reciprocates to drive the slider 13, the connecting block 14, and the nozzle 15 to move, and spray water evenly inside the processing chamber 24.
[0046] The second step involves the staff placing the gravel onto the conveyor belt assembly 32, which then transports it to the processing chamber 24. The controller 23 then starts the motor 25, which drives the two screw conveyor main shafts 27 to rotate between the transfer blocks 26, discharging the gravel from the processing chamber 24 to the discharge port 28, thus completing the gravel feeding process.
[0047] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. An automatic water spraying system for gravel gradation construction, comprising a discharge hopper (11), characterized in that, The discharge hopper (11) has a sliding groove (12) inside; The sliding groove (12) is equipped with a protective sliding water spray structure. The protective sliding water spray structure includes a slider (13), the length of the groove (12) is greater than the length of the slider (13), the slider (13) can slide horizontally and vertically inside the groove (12), a connecting block (14) is fixedly installed on the upper end of the slider (13), a nozzle (15) is fixedly installed on the upper end, the nozzle (15) has multiple water outlets (16) on its surface, a water pipe (17) is provided on the upper end of the nozzle (15), and the water outlets (16) can spray liquid through the water pipe (17). A storage groove (18) is provided on the side wall. An electric push rod (19) is fixedly installed inside the storage groove (18). The output shaft of the electric push rod (19) is fixedly installed with the slider (13). The output shaft of the electric push rod (19) can push the slider (13) to slide inside the slide groove (12). A limit switch (21) is symmetrically provided on the side wall of the slide groove (12). Both limit switches (21) can control the extension and retraction of the electric push rod (19). Multiple through grooves (22) are provided through the inner wall of the slide groove (12).
2. The automatic water spraying system for gravel gradation construction as described in claim 1, characterized in that, A controller (23) is fixedly installed on the surface of the discharge hopper (11); The discharge hopper (11) is provided with a processing chamber (24).
3. The automatic water spraying system for gravel gradation construction as described in claim 2, characterized in that, Motors (25) are symmetrically fixedly installed on the side wall of the discharge hopper (11); The processing cavity (24) is equipped with a transfer block (26).
4. The automatic water spraying system for gravel gradation construction as described in claim 3, characterized in that, The output shafts of the two motors (25) are fixedly installed between the output shafts and the transfer block (26) of the screw conveyor (27).
5. The automatic water spraying system for gravel gradation construction as described in claim 4, characterized in that, The threads on the two main shafts (27) of the screw conveyor are oriented in opposite directions; The output shafts of both motors (25) can drive the main shaft (27) of the screw conveyor to rotate inside the processing chamber (24).
6. The automatic water spraying system for gravel gradation construction as described in claim 5, characterized in that, The inner wall of the processing cavity (24) is symmetrically provided with discharge ports (28); Both of the aforementioned channels (22) are located on the side away from the discharge port (28).
7. The automatic water spraying system for gravel gradation construction as described in claim 6, characterized in that, A bracket (29) is fixedly installed on the side wall of the discharge hopper (11) away from the controller (23); A frame (31) is fixedly installed between the upper end of the support (29) and the discharge hopper (11).
8. The automatic water spraying system for gravel gradation construction as described in claim 7, characterized in that, The inner side of the frame (31) is provided with a conveyor belt assembly (32); The conveyor belt assembly (32) can deliver gravel into the processing chamber (24).