A freeze protection device for a drip irrigation pipe

Abstract

The application relates to a kind of anti-freezing devices for drip irrigation pipes, and relates to the technical field of agricultural irrigation equipment, which comprises an inner layer drip irrigation pipe and an upper heat preservation sleeve pipe, an annular groove is formed on the outer surface of the inner layer drip irrigation pipe, an anti-freezing mechanism is fixedly connected inside the groove, a lower heat preservation sleeve pipe is rotatably connected inside the upper heat preservation sleeve pipe, the anti-freezing mechanism comprises an electrothermal film, a battery pack is fixedly connected to the top of the upper heat preservation sleeve pipe, a connecting line is fixedly connected to the outside of the battery pack, and a dovetail clamping plate is rotatably connected inside the lower heat preservation sleeve pipe.In the utility model, the battery pack supplies power to drive the electrothermal film to work, the electrothermal film transfers heat to the inner layer drip irrigation pipe to prevent the liquid in the pipe from freezing, ensuring normal operation in cold weather, and achieving the combination of active heating and heat preservation protection, which can effectively cope with low-temperature environment and avoid the freezing and cracking of the drip irrigation pipe.

Description

Technical Field

[0001] This application relates to the field of agricultural irrigation equipment technology, and in particular to an antifreeze device for drip irrigation pipes. Background Technology

[0002] In cold northern regions, drip irrigation pipes and valves are highly susceptible to damage from frozen internal moisture during winter, rendering the irrigation system unusable. Currently, the industry primarily addresses this issue by draining excess water from the pipes, installing electric heating cables, and using antifreeze. While these methods are effective to some extent, they suffer from drawbacks such as high energy consumption, complex maintenance, and environmental pollution. With the development of precision agriculture, the demand for stable year-round operation of drip irrigation equipment is becoming increasingly urgent, necessitating the development of more efficient and reliable antifreeze technologies.

[0003] A search revealed Chinese publication number CN212868952U, which discloses an antifreeze device for drip irrigation pipes. The device includes a valve seat, a receiving groove on the top outer surface of the valve seat, a sleeve on the top outer surface of the receiving groove, a rotating rod on the inner outer surface of the sleeve, a valve block on the bottom outer surface of the rotating rod, a water inlet pipe on the left outer surface of the valve seat, an installation block inside the top of the water inlet pipe, a heat-conducting ring on the right side of the installation block and on the outer outer surface of the water inlet pipe, a positioning ring on the left side of the installation block and on the outer outer surface of the water inlet pipe, a solar panel on top of the positioning ring, and a water outlet pipe on the right side of the valve seat. This invention provides an antifreeze device for drip irrigation pipes. Rotating the rotating rod moves the valve block, controlling the valve seat quickly and easily. Simultaneously, the solar panel drives the heat-conducting ring, preventing the drip irrigation pipe from freezing inside during winter and becoming unusable.

[0004] The patent description mentions that "solar panels drive heat-conducting rings to prevent the drip irrigation pipes from freezing inside in winter and becoming unusable." However, in practice, the patent can only achieve antifreeze by heating and lacks insulation measures. In response to the above problems, an antifreeze device for drip irrigation pipes is proposed. Utility Model Content

[0005] The purpose of this application is to provide an antifreeze device for drip irrigation pipes, which aims to improve the problem that some devices only heat the water and do not have a heat preservation function.

[0006] The antifreeze device for drip irrigation pipes provided in this application adopts the following technical solution:

[0007] An antifreeze device for drip irrigation pipes includes an inner drip irrigation pipe and an upper insulation sleeve. An annular groove is formed on the outer surface of the inner drip irrigation pipe, and an antifreeze mechanism is fixedly connected inside the groove. A lower insulation sleeve is rotatably connected inside the upper insulation sleeve, and an adjustment mechanism is provided at the top of the upper insulation sleeve.

[0008] The antifreeze mechanism includes an electric heating film, the outer side of which is fixedly connected to the annular groove of the inner drip irrigation tube. A battery pack is fixedly connected to the top of the upper insulation sleeve, and a connecting wire is fixedly connected to the outer side of the battery pack. The connecting wire is fixedly connected to the top of the electric heating film. A dovetail clamp is rotatably connected to the inside of the lower insulation sleeve, and the dovetail clamp is slidably connected to the inside of the upper insulation sleeve. A locking component is fixedly connected to the outside of the upper insulation sleeve.

[0009] The above technical solution effectively prevents freezing and cracking by directly heating the drip irrigation pipe with an electric heating film combined with an insulation sleeve to reduce heat loss. The annular groove design makes the electric heating film installation more stable, the upper and lower insulation sleeves are rotatably connected for easy installation and disassembly, the locking component ensures that the position is fixed during use, and the battery pack provides power to ensure continuous antifreeze protection in low-temperature environments.

[0010] As a further description of the above technical solution:

[0011] The adjustment mechanism includes a disc, the bottom of which is fixedly connected to the top of the battery pack. A slider is rotatably connected to the inner top side of the disc, and a solar film is fixedly connected to the outer top side of the slider. A guide assembly is fixedly connected to the top of the disc.

[0012] Through the above technical solution: the solar thin film in the adjustment mechanism can convert light energy into electrical energy and store it in the battery pack to power the electric heating film and achieve energy saving and continuous operation. The rotational connection between the disc and the slider allows the solar thin film to adjust with the angle of light. The guide component ensures smooth and stable rotation, improves the utilization rate of light energy and enhances the continuous working ability of the antifreeze device.

[0013] As a further description of the above technical solution:

[0014] The locking assembly includes a connecting seat, which is externally fixedly connected to the front side of the upper insulation sleeve. A limiting plate is slidably connected inside the connecting seat, and the limiting plate is externally slidably connected to the outer surface of the dovetail plate.

[0015] The above technical solution provides sliding support for the limiting plate in the locking assembly. The limiting plate is inserted into the dovetail plate to lock the upper and lower insulation sleeves. The structure is simple and easy to operate. It can quickly fix the position of the insulation sleeve to prevent loosening during use, ensure the stability of the insulation structure, and effectively improve the antifreeze performance. When disassembling, it is easy to separate by simply sliding the limiting plate.

[0016] As a further description of the above technical solution:

[0017] The guide assembly includes an annular guide rail, the bottom of which is fixedly connected to the top of the disk, and the bottom inner side of the slider is slidably connected to the outside of the annular guide rail.

[0018] Through the above technical solution: the annular guide rail in the guide component provides an annular sliding trajectory for the slider, so that the slider drives the solar film to rotate smoothly along the guide rail, ensuring that the solar film is always aligned with the direction of light, improving the light energy collection efficiency. At the same time, the support of the annular guide rail enhances the structural stability and ensures that the adjustment process is smooth and does not jam.

[0019] As a further description of the above technical solution:

[0020] The inner wall of the upper insulation sleeve is covered with an elastic buffer layer, and the outer side of the elastic buffer layer is in contact with the inner wall of the lower insulation sleeve.

[0021] Through the above technical solution: the elastic buffer layer on the inner wall of the upper insulation sleeve can reduce friction loss when the upper and lower insulation sleeves rotate. Its elastic deformation capability can adapt to different rotation angles. At the same time, it buffers external impacts to avoid damage to the insulation sleeve. It forms a sealed insulation structure with the inner wall of the lower insulation sleeve, reducing heat loss and enhancing the antifreeze effect.

[0022] As a further description of the above technical solution:

[0023] The outer wall of the upper insulation sleeve is covered with insulation cotton, and the outside of the insulation cotton is in contact with the outer wall of the lower insulation sleeve.

[0024] Through the above technical solution: the insulation cotton on the outer wall of the upper insulation sleeve can enhance the overall insulation performance, reduce heat loss to the outside, and form a double insulation structure in contact with the outer wall of the lower insulation sleeve. In low-temperature environments, it can effectively maintain the temperature of the drip irrigation pipe, and the soft material of the insulation cotton can buffer external impacts, protect the internal structure of the insulation sleeve, and extend the service life of the antifreeze device.

[0025] As a further description of the above technical solution:

[0026] The external part of the connecting wire is slidably connected to the inside of the insulation cotton, and the external part of the connecting wire is slidably connected to the inside of the upper insulation sleeve.

[0027] The above technical solution allows the connecting wires to slide within the insulation cotton and upper insulation sleeve, preventing cable damage caused by the rotation of the insulation sleeve and ensuring stable circuit connection. At the same time, the sliding structure allows the connecting wires to flexibly adjust their position as the insulation sleeve rotates, preventing cable entanglement from affecting the operation of the device. Furthermore, the concealed wiring enhances the overall integrity and safety of the device.

[0028] As a further description of the above technical solution:

[0029] Waterproof aluminum foil tape is pasted on the outside of the insulation cotton, and the outside of the battery pack is in contact with the inside of the insulation cotton.

[0030] Through the above technical solution: the waterproof aluminum foil tape pasted on the outside of the insulation cotton can effectively prevent rainwater from seeping in, protect the internal insulation cotton and connecting wires from moisture, and at the same time enhance the structural strength of the insulation cotton. The battery pack can use the insulation cotton to insulate and keep it warm when in contact with the insulation cotton, avoid battery performance degradation in low-temperature environments, and ensure continuous and stable power supply.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. In this utility model, the electric heating film is powered by a battery pack and transfers heat to the inner drip irrigation tube to prevent the liquid inside the tube from freezing. This ensures normal operation in cold weather, and is energy-saving, environmentally friendly, and easy to install and maintain. It combines active heating with heat preservation and protection, effectively copes with low-temperature environments, and avoids the drip irrigation tube from freezing and cracking.

[0033] 2. In this utility model, by rotating the slider, it slides along the annular guide rail, thereby adjusting the orientation of the solar film. The slider can adjust the angle of the film by sliding along the guide rail, thereby improving the photoelectric conversion efficiency, converting solar energy into electrical energy to replenish the battery pack, enhancing the device's endurance, achieving energy saving and consumption reduction, ensuring a stable power supply for the antifreeze mechanism, and helping the drip irrigation pipe's antifreeze function to operate continuously and effectively. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of an antifreeze device for drip irrigation pipes proposed in this utility model;

[0035] Figure 2 This is a schematic diagram of the structure of the electric heating film of an antifreeze device for drip irrigation pipes proposed in this utility model;

[0036] Figure 3 This is a schematic diagram of the lower insulation sleeve of an antifreeze device for drip irrigation pipes proposed in this utility model;

[0037] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0038] Explanation of reference numerals in the attached diagram: 1. Inner drip irrigation pipe; 2. Upper insulation sleeve; 3. Antifreeze mechanism; 31. Heating film; 32. Battery pack; 33. Connecting wire; 34. Dovetail plate; 35. Locking assembly; 351. Connecting seat; 352. Limiting plate; 4. Lower insulation sleeve; 5. Adjustment mechanism; 51. Disc; 52. Slider; 53. Solar film; 54. Guide assembly; 541. Circular guide rail; 6. Elastic buffer layer; 7. Insulation cotton; 8. Waterproof aluminum foil tape. Detailed Implementation

[0039] The following combination Figures 1-4 This application will be described in further detail below.

[0040] Example: An antifreeze device for drip irrigation pipes, referring to... Figures 1 to 3 It includes an inner drip irrigation pipe 1 and an upper insulation sleeve 2. The inner drip irrigation pipe 1 serves as the basic delivery pipe for drip irrigation and has good corrosion resistance and pressure resistance. The upper insulation sleeve 2 and the lower insulation sleeve 4 are rotatably connected, which facilitates the installation and disassembly of the inner drip irrigation pipe 1 and internal components. At the same time, the splicing position can be adjusted by rotation. An annular groove is opened on the outer surface of the inner drip irrigation pipe 1, and an antifreeze mechanism 3 is fixedly connected inside the groove. The lower insulation sleeve 4 is rotatably connected inside the upper insulation sleeve 2. An adjustment mechanism 5 is provided on the top of the upper insulation sleeve 2.

[0041] The antifreeze mechanism 3 includes an electric heating film 31, which is evenly laid in the annular groove of the inner drip irrigation pipe 1 and can transfer heat to the inner drip irrigation pipe 1. The electric heating film 31 is fixedly connected to the annular groove of the inner drip irrigation pipe 1. A battery pack 32 is fixedly connected to the top of the upper insulation sleeve 2. The battery pack 32 provides stable power to the electric heating film 31. A connecting wire 33 is fixedly connected to the outside of the battery pack 32. The connecting wire 33 is made of a wire with strong weather resistance and good insulation performance to ensure stable power transmission. The connecting wire 33 is fixedly connected to the top of the electric heating film 31. A dovetail clamping plate 34 is rotatably connected inside the lower insulation sleeve 4. The dovetail clamping plate 34 adopts a special dovetail shape design and uses the dovetail structure to lock and position the upper insulation sleeve 2 and the lower insulation sleeve 4. The structure is simple and the connection is stable. The dovetail clamping plate 34 is slidably connected to the inside of the upper insulation sleeve 2. A locking component 35 is fixedly connected to the outside of the upper insulation sleeve 2.

[0042] The locking component 35 includes a connecting seat 351, which provides an installation base for the limiting plate 352. The connecting seat 351 is externally fixedly connected to the front side of the upper insulation sleeve 2. The limiting plate 352 is slidably connected inside the connecting seat 351. The limiting plate 352 is slidably inserted into the corresponding slot of the dovetail plate 34 to restrict the rotation of the dovetail plate 34, thereby locking the upper insulation sleeve 2 and the lower insulation sleeve 4. The operation is convenient and easy to install, disassemble and maintain and adjust later. The limiting plate 352 is externally slidably connected to the outer surface of the dovetail plate 34.

[0043] Specifically, rotate the lower insulation sleeve 4 to adjust its splicing position relative to the upper insulation sleeve 2. Use the dovetail plate 34 to slide and rotate inside the upper insulation sleeve 2 to place the inner drip irrigation pipe 1. Slide the limit plate 352 to insert it into the corresponding slot of the dovetail plate 34 to lock the upper and lower insulation sleeves 4. When freezing, the battery pack 32 supplies power to the heating film 31 through the connecting line 33, and the heating film 31 supplies heat to the inner drip irrigation pipe 1.

[0044] Reference Figure 3 and Figure 4The adjustment mechanism 5 includes a disc 51, which serves as the basic support component of the adjustment mechanism 5. The bottom of the disc 51 is fixedly connected to the top of the battery pack 32. A slider 52 is rotatably connected to the top inside of the disc 51. The slider 52 can rotate flexibly along the annular guide rail 541 to adjust the orientation of the solar film 53. The solar film 53 is fixedly connected to the top outside of the slider 52. The solar film 53 can adjust its angle as the slider 52 rotates to convert solar energy into electrical energy to replenish the battery pack 32. A guide component 54 is fixedly connected to the top of the disc 51.

[0045] The guide assembly 54 includes an annular guide rail 541, which provides a guide track for the slider 52 to slide. The bottom of the annular guide rail 541 is fixedly connected to the top of the disk 51, and the bottom inner side of the slider 52 is slidably connected to the outside of the annular guide rail 541.

[0046] Specifically, when the slider 52 is rotated, the inner bottom side of the slider 52 slides along the annular guide rail 541. Since the solar film 53 is fixedly connected to the top side of the slider 52, the orientation of the solar film 53 is adjusted as the slider 52 rotates. During the adjustment process, the annular guide rail 541 provides guidance for the slider 52 to ensure its sliding trajectory is stable, so that the solar film 53 can be accurately aligned with the sun, thereby realizing the conversion of solar energy into electrical energy and replenishing the battery pack 32.

[0047] Reference Figure 1 and Figure 2 The inner wall of the upper insulation sleeve 2 is covered with an elastic buffer layer 6. The elastic buffer layer 6 has good buffering and shock absorption performance. It absorbs energy through its own elastic deformation, protecting the inner drip irrigation pipe 1 and its internal structure. The outer side of the elastic buffer layer 6 is in contact with the inner wall of the lower insulation sleeve 4. The outer wall of the upper insulation sleeve 2 is covered with insulation cotton 7. The insulation cotton 7 wraps around the upper insulation sleeve 2 and the lower insulation sleeve 4, reducing heat transfer between the inside and outside, enhancing the overall insulation effect, and creating a stable and warm environment for the inner drip irrigation pipe 1. The outer side of the insulation cotton 7 is in contact with the inner wall of the lower insulation sleeve 4. The outer wall of the heat insulation sleeve 4 is in contact with the outer wall of the heat insulation cotton 7. The outer side of the connecting wire 33 is slidably connected to the inner side of the heat insulation cotton 7. The outer side of the connecting wire 33 is slidably connected to the inner side of the upper heat insulation sleeve 2. Waterproof aluminum foil tape 8 is pasted on the outer side of the heat insulation cotton 7. The waterproof aluminum foil tape 8 uses the waterproof, air-proof and heat-reflecting properties of aluminum foil to prevent external moisture from penetrating the heat insulation cotton 7, ensuring that the heat insulation performance and internal structure are not damp. It can reflect heat, reduce heat loss to the outside, and improve the overall effect of antifreeze and heat insulation. The outer side of the battery pack 32 is in contact with the inner side of the heat insulation cotton 7.

[0048] Specifically, the elastic buffer layer 6 undergoes elastic deformation under external compression and vibration, absorbing and dispersing energy. The thermal insulation cotton 7 tightly wraps the upper thermal insulation sleeve 2 and the lower thermal insulation sleeve 4 to form a heat insulation layer, hindering heat conduction. The waterproof aluminum foil tape 8 covers the outside of the thermal insulation cotton 7, isolating external moisture and reflecting heat. The connecting wire 33 passes through the thermal insulation cotton 7 and the upper thermal insulation sleeve 2, realizing power transmission between the battery pack 32 and the heating film 31 without damaging the insulation structure. The battery pack 32 is surrounded by the thermal insulation cotton 7, providing power to the antifreeze mechanism 3 in a stable temperature environment.

[0049] The implementation principle of this application embodiment is as follows: First, by rotating the lower insulation sleeve 4, the lower insulation sleeve 4 and the upper insulation sleeve 2 are rotated relative to each other to adjust the splicing position. The dovetail clamping plate 34 slides and rotates inside the upper insulation sleeve 2 to place the inner drip irrigation pipe 1. Then, the sliding limit plate 352 is used to limit the rotation of the dovetail clamping plate 34 and lock the upper and lower insulation sleeves 4. When performing antifreeze, the battery pack 32 supplies power to the heating film 31 through the connecting line 33. The heating film 31 transfers heat to the inner drip irrigation pipe 1 to prevent the liquid inside the pipe from freezing.

[0050] At the same time, rotate slider 52 so that slider 52 slides along the annular guide rail 541 to adjust the orientation of solar film 53. Solar film 53 converts solar energy into electrical energy to supplement battery pack 32. Elastic buffer layer 6 absorbs external pressure and vibration energy to protect the internal structure. Insulation cotton 7 reduces heat transfer. Waterproof aluminum foil tape 8 blocks moisture and reflects heat, together ensuring the device's antifreeze and heat preservation effects.

[0051] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A freeze protection device for drip irrigation pipes, comprising an inner drip irrigation pipe (1) and an upper insulating sleeve (2), characterized in that: The outer surface of the inner drip irrigation tube (1) has an annular groove, and an antifreeze mechanism (3) is fixedly connected inside the groove. The lower insulation sleeve (4) is rotatably connected inside the upper insulation sleeve (2), and an adjustment mechanism (5) is provided on the top of the upper insulation sleeve (2). The antifreeze mechanism (3) includes an electric heating film (31), the outside of which is fixedly connected to the annular groove of the inner drip irrigation pipe (1), the top of the upper insulation sleeve (2) is fixedly connected to a battery pack (32), the outside of which is fixedly connected to a connecting wire (33), the outside of which is fixedly connected to the top of the electric heating film (31), the inside of the lower insulation sleeve (4) is rotatably connected to a dovetail plate (34), the outside of which is slidably connected to the inside of the upper insulation sleeve (2), and the outside of the upper insulation sleeve (2) is fixedly connected to a locking component (35).

2. The antifreeze device for drip irrigation pipes according to claim 1, characterized in that: The adjustment mechanism (5) includes a disc (51), the bottom of which is fixedly connected to the top of the battery pack (32), a slider (52) is rotatably connected to the inner top side of the disc (51), a solar film (53) is fixedly connected to the outer top side of the slider (52), and a guide assembly (54) is fixedly connected to the top of the disc (51).

3. The antifreeze device for drip irrigation pipes according to claim 1, characterized in that: The locking assembly (35) includes a connecting seat (351), which is externally fixedly connected to the front side of the upper insulation sleeve (2), and a limiting plate (352) is internally slidably connected to the connecting seat (351). The limiting plate (352) is externally slidably connected to the outer surface of the dovetail plate (34).

4. The antifreeze device for drip irrigation pipes according to claim 2, characterized in that: The guide assembly (54) includes an annular guide rail (541), the bottom of which is fixedly connected to the top of the disc (51), and the bottom inner side of the slider (52) is slidably connected to the outside of the annular guide rail (541).

5. The antifreeze device for drip irrigation pipes according to claim 1, characterized in that: The inner wall of the upper insulation sleeve (2) is covered with an elastic buffer layer (6), and the outer side of the elastic buffer layer (6) is in contact with the inner wall of the lower insulation sleeve (4).

6. The antifreeze device for drip irrigation pipes according to claim 1, characterized in that: The outer wall of the upper insulation sleeve (2) is covered with insulation cotton (7), and the outside of the insulation cotton (7) is in contact with the outer wall of the lower insulation sleeve (4).

7. The antifreeze device for drip irrigation pipes according to claim 6, characterized in that: The external part of the connecting line (33) is slidably connected to the inside of the insulation cotton (7), and the external part of the connecting line (33) is slidably connected to the inside of the upper insulation sleeve (2).

8. The antifreeze device for drip irrigation pipes according to claim 6, characterized in that: Waterproof aluminum foil tape (8) is pasted on the outside of the insulation cotton (7), and the outside of the battery pack (32) is in contact with the inside of the insulation cotton (7).

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