A spraying device for crab larvae rearing ponds
By using a rotating spraying mechanism and an electric cylinder-driven movable rod structure, the problems of fixed spraying range and inconvenient operation of spraying equipment in crab seedling rearing ponds have been solved. This has enabled automated adjustment of the spraying range and uniformity, improving ease of operation and spraying efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAANSHAN HUINONG AGRI TECH DEV CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-03
AI Technical Summary
The existing spraying equipment for crab larvae rearing ponds has a fixed spraying range, which cannot be flexibly adjusted, resulting in uneven spraying, cumbersome operation, high labor intensity, and easy to cause stress reactions in crab larvae.
The spraying mechanism, which is mounted on a rotating platform and combines an electric cylinder and a movable rod structure, enables automatic adjustment of the spraying range and distance. It can adapt to different pool sizes and shapes by using a rotating turntable and a telescopic movable rod.
It achieves adjustable spraying range and uniformity, reduces manual operation, improves spraying efficiency and ease of operation, and reduces the impact on crab seedlings.
Smart Images

Figure CN224443318U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture equipment technology, and in particular to a spraying device for crab seedling rearing ponds. Background Technology
[0002] Spraying equipment is a specialized tool used in the crab larvae cultivation process to precisely spray drugs, fertilizers, water quality regulators, probiotics, and other substances into the cultivation pond.
[0003] However, existing technologies and traditional spraying equipment have problems such as fixed spraying range and inability to be flexibly adjusted according to the size of the pond. Specifically, its spraying radius and angle are difficult to adapt to different sizes of breeding ponds. For irregularly shaped ponds, it is easy to have blind spots in spraying. Moreover, the adjustment process requires manual handling and multiple relocations of the equipment, which is cumbersome. At the same time, manual operation is not only labor-intensive, but also easy to lead to physical exhaustion due to prolonged work. Uneven hand force can also cause unstable spraying pressure, resulting in large differences in liquid atomization effect. This leads to poor spraying uniformity. Excessive concentration in some areas can easily cause stress reactions or even death of crab larvae, while insufficient concentration cannot achieve the expected fertilization and disinfection effects. Utility Model Content
[0004] The purpose of this invention is to solve the problems of limited spraying range, inconvenient operation, and poor uniformity in the existing technology, and to propose a spraying device for crab seedling cultivation ponds.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a spraying device for crab seedling cultivation ponds, comprising a water tank, a spraying mechanism rotatably connected to the top of the water tank, the spraying mechanism comprising a support platform, a positioning rod, a movable rod, and a turntable, the turntable being fixedly installed at the bottom of the support platform and rotatably installed at the top of the water tank, one end of the positioning rod being fixedly connected to the support platform, the movable rod being slidably connected inside the positioning rod, multiple movable rods being sequentially sleeved, a protective ring being fixedly installed at the end of the movable rod, an extension bracket being fixedly connected to the bottom of the protective ring, a pipe being provided inside the support platform, one end of the pipe being fixedly connected to the extension bracket at the end, and a water pump being fixedly installed on one side of the support platform, the water pump being connected to the pipe.
[0006] Preferably, a positioning block is fixedly installed on the outer wall of the positioning rod, and a first electric cylinder is fixedly installed on the inner side of the positioning block.
[0007] Preferably, a second electric cylinder is fixedly installed on the outer wall of each of the movable rods, and the second electric cylinder is arranged along the length direction of the movable rod.
[0008] Preferably, a connecting block is fixedly connected to one end of the piston rod of the first electric cylinder and one end of the piston rod of the second electric cylinder, and the bottom of the connecting block is fixedly connected to the protective ring.
[0009] Preferably, a limiting ring is fixedly connected to the end of the extension bracket, and one of the limiting rings is sleeved on the outer wall of the pipe.
[0010] Preferably, a transmission block is fixedly connected to the end of the second electric cylinder, and the second electric cylinders are arranged alternately in the upper and lower positions.
[0011] Preferably, a receiving groove is provided on the inner side of one of the connecting blocks, and a transmission block is located on the inner side of the receiving groove.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this utility model, the turntable is rotatably installed on the top of the water tank. The operator can rotate the turntable to drive the entire spraying mechanism to rotate and expand the spraying range. The positioning rod provides sliding support for the movable rod. Multiple movable rods are sequentially sleeved to extend and adjust their length, thereby changing the extension distance of the extension bracket. The protective ring plays a fixing role on the end of the movable rod and the connected extension bracket. One of the limiting rings is sleeved on the outer wall of the pipe, which works with the extension bracket to limit the pipe and prevent it from shaking.
[0014] 2. In this utility model, when the first electric cylinder is started, it drives the protective ring and the connected movable rod to move through the connecting block. At the same time, the second electric cylinder realizes the coordinated extension and retraction of multiple movable rods by means of the cooperation between the transmission block and the receiving groove. This ensures that the movable rods in the positioning rod are sequentially sleeved and adjusted in length. The second electric cylinder, which is arranged vertically and vertically, cooperates with the engagement of the transmission block and the receiving groove to realize the orderly extension and retraction of the movable rods and avoid interference between components. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of a spraying device for a crab larvae rearing pond proposed in this utility model;
[0016] Figure 2 This is a top view of a spraying device for a crab larvae rearing pond proposed in this utility model;
[0017] Figure 3 This is a schematic diagram of the spraying mechanism of a spraying device for a crab larvae rearing pond proposed in this utility model.
[0018] Figure 4 This is a three-dimensional structural diagram of the protective ring of a spraying device for crab larvae rearing ponds proposed in this utility model.
[0019] Legend: 1. Water tank; 2. Spraying mechanism; 21. Support platform; 22. Water pump; 23. Positioning rod; 24. Movable rod; 25. Turntable; 26. First electric cylinder; 27. Second electric cylinder; 28. Positioning block; 29. Connecting block; 210. Protective ring; 211. Extension bracket; 212. Limiting ring; 213. Pipe; 214. Transmission block; 215. Receiving groove. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a spraying device for crab seedling cultivation ponds, including a water tank 1. A spraying mechanism 2 is rotatably connected to the top of the water tank 1. The spraying mechanism 2 includes a support platform 21, a positioning rod 23, a movable rod 24, and a turntable 25. The turntable 25 is fixedly installed at the bottom of the support platform 21 and rotatably installed at the top of the water tank 1. One end of the positioning rod 23 is fixedly connected to the support platform 21. The movable rod 24 is slidably connected inside the positioning rod 23. Multiple movable rods 24 are sequentially sleeved. A protective ring 210 is fixedly installed at the end of the movable rod 24. An extension bracket 211 is fixedly connected to the bottom of the protective ring 210. A pipe 213 is provided inside the support platform 21. One end of the pipe 213 is fixedly connected to the extension bracket 211 at the end. A water pump 22 is fixedly installed on one side of the support platform 21. The water pump 22 is connected to the pipe 213. A limit ring 212 is fixedly connected to the end of the extension bracket 211. One of the limit rings 212 is sleeved on the outer wall of the pipe 213.
[0023] The specific setup and function of this embodiment are described below. Water tank 1 stores the liquid to be sprayed. After water pump 22 starts, it pumps the liquid from water tank 1 into pipe 213 inside support platform 21. The liquid is then discharged through pipe 213 for spraying. The position of the end of pipe 213 is determined by an extension bracket 211. Turntable 25 is rotatably mounted on top of water tank 1. The operator can rotate turntable 25 to rotate the entire spraying mechanism 2 and expand the spraying range. Positioning rod 23 provides sliding support for movable rod 24. Multiple movable rods 24 are sequentially sleeved to extend and adjust their length, thereby changing the extension distance of extension bracket 211. Protective ring 210 fixes the end of movable rod 24 and the connected extension bracket 211. One of the limiting rings 212 is sleeved outside pipe 213. On the wall, the extension bracket 211 limits the pipe 213 to prevent it from shaking, ensuring stable liquid delivery. The water tank 1 provides a stable liquid source. The turntable 25 allows the spraying mechanism 2 to rotate and expand the coverage area. The telescopic structure of the positioning rod 23 and the movable rod 24 can flexibly adjust the spraying distance to adapt to different pool sizes. The protective ring 210 prevents damage to the end of the movable rod 24 and extends its service life. The extension bracket 211 works with the pipe 213 to accurately deliver liquid. The water pump 22 ensures stable liquid delivery power. The limiting ring 212 ensures that the pipe 213 does not deviate when the movable rod 24 extends and the mechanism rotates. The coordinated action of each component makes the spraying more uniform and the range adjustable. It is flexible in operation and can adapt to different sizes of crab seedling breeding ponds, improving spraying efficiency while reducing the impact on crab seedlings.
[0024] Example 2: Figure 3 and Figure 4 As shown, a positioning block 28 is fixedly installed on the outer wall of the positioning rod 23, and a first electric cylinder 26 is fixedly installed on the inner side of the positioning block 28. A second electric cylinder 27 is fixedly installed on the outer wall of each movable rod 24. The second electric cylinder 27 is arranged along the length of the movable rod 24. A connecting block 29 is fixedly connected to one end of the piston rod of the first electric cylinder 26 and one end of the piston rod of the second electric cylinder 27. The bottom of the connecting block 29 is fixedly connected to the protective ring 210. A transmission block 214 is fixedly connected to the end of the second electric cylinder 27. The second electric cylinders 27 are arranged alternately up and down. A receiving groove 215 is opened on the inner side of one of the connecting blocks 29, and one of the transmission blocks 214 is located inside the receiving groove 215.
[0025] The overall effect of this embodiment is that the positioning block 28 is fixed to the outer wall of the positioning rod 23 to provide an installation base for the first electric cylinder 26. The first electric cylinder 26 and the second electric cylinder 27 are connected to the protective ring 210 through the connecting block 29 at the end of the piston rod. The second electric cylinder 27 is arranged along the length of the movable rod 24 and is staggered vertically. The transmission block 214 at its end is located in the receiving groove 215 of another connecting block 29. When the first electric cylinder 26 is started, it drives the protective ring 210 and the connected movable rod 24 to move through the connecting block 29. At the same time, the second electric cylinder 27 achieves the coordinated extension and retraction of multiple movable rods 24 with the cooperation of the transmission block 214 and the receiving groove 215, ensuring that the movable rods 24 in the positioning rod 23 are properly extended. 4. The length is adjusted by sequentially connecting the positioning block 28, which firmly supports the first electric cylinder 26 to ensure stable operation of the power unit. The first electric cylinder 26 and the second electric cylinder 27 provide automated extension and retraction power, replacing manual operation and improving adjustment efficiency. The second electric cylinder 27, which is arranged vertically, cooperates with the transmission block 214 and the receiving groove 215 to realize the orderly extension and retraction of the movable rod 24 and avoid interference between components. The connecting block 29 connects the electric cylinder and the protective ring 210, transmitting power while protecting the connection structure. The cooperation of all components makes the extension and retraction of the movable rod 24 more precise and controllable, expands the spraying range adjustment range, adapts to different specifications of breeding ponds, improves the convenience of operation and the degree of automation, and reduces the impact of manual intervention on crab seedlings.
[0026] The operating method and working principle of this device are as follows: First, inject the liquid to be sprayed into the water tank 1, start the water pump 22, and the water pump 22 pumps the liquid in the water tank 1 into the pipe 213 inside the support platform 21. The liquid is then transported through the pipe 213 to the extension bracket 211 and sprayed out. Depending on the size and shape of the cultivation tank, the operator can rotate the turntable 25 to rotate the entire spraying mechanism 2 to expand the spraying range. At the same time, the spraying distance can be adjusted by controlling the first electric cylinder 26 and the second electric cylinder 27. When the first electric cylinder 26 is started, it drives the protective ring 210 and the connected movable rod 24 to move through the connecting block 29. The second electric cylinder 27 realizes the movement of multiple movable rods 24 with the help of the transmission block 214 and the receiving groove 215. The coordinated extension and retraction of the movable rods 24 inside the positioning rod 23 allows for sequential adjustment of their length, thereby changing the extension distance of the extension bracket 211. During the extension and retraction of the movable rods 24, the limiting ring 212, in conjunction with the extension bracket 211, limits the movement of the pipe 213, preventing it from shaking and ensuring stable liquid delivery. After spraying, the water pump 22 is turned off, and the spraying mechanism 2 is rotated to its initial position. The movable rods 24 can be retracted as needed to reduce space occupation. The protective ring 210 prevents damage to the ends of the movable rods 24, extending their service life. Throughout the process, the components work together to achieve uniform spraying and adjustable range, adapting to the needs of crab seedling rearing ponds of different sizes, improving spraying efficiency while reducing the impact on crab seedlings.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A crab larva rearing pond spraying device comprising a water tank (1), characterized in that: The top of the water tank (1) is rotatably connected to a spraying mechanism (2). The spraying mechanism (2) includes a support platform (21), a positioning rod (23), a movable rod (24), and a turntable (25). The turntable (25) is fixedly installed at the bottom of the support platform (21) and rotatably installed at the top of the water tank (1). One end of the positioning rod (23) is fixedly connected to the support platform (21). The movable rod (24) is slidably connected inside the positioning rod (23). Multiple movable rods (24) are sequentially connected. A protective ring (210) is fixedly installed at the end of the movable rod (24). An extension bracket (211) is fixedly connected to the bottom of the protective ring (210). A pipe (213) is provided inside the support platform (21). One end of the pipe (213) is fixedly connected to the extension bracket (211) at the end. A water pump (22) is fixedly installed on one side of the support platform (21). The water pump (22) is connected to the pipe (213).
2. The apparatus according to claim 1, wherein: A positioning block (28) is fixedly installed on the outer wall of the positioning rod (23), and a first electric cylinder (26) is fixedly installed on the inner side of the positioning block (28).
3. The apparatus according to claim 1, wherein: A second electric cylinder (27) is fixedly installed on the outer wall of each of the movable rods (24), and the second electric cylinder (27) is arranged along the length direction of the movable rod (24).
4. The apparatus according to claim 2, wherein: One end of the piston rod of the first electric cylinder (26) and one end of the piston rod of the second electric cylinder (27) are fixedly connected to a connecting block (29), and the bottom of the connecting block (29) is fixedly connected to the protective ring (210).
5. The apparatus according to claim 1, wherein: The end of the extension bracket (211) is fixedly connected to a limiting ring (212), one of which is sleeved on the outer wall of the pipe (213).
6. The apparatus according to claim 3, wherein: The end of the second electric cylinder (27) is fixedly connected to a transmission block (214), and the second electric cylinder (27) is arranged in an alternating manner.
7. The apparatus according to claim 6, wherein: One of the connecting blocks (29) has a receiving groove (215) on its inner side, and one of the transmission blocks (214) is located inside the receiving groove (215).