Connector for drip irrigation tape test

Abstract

The utility model discloses a drip irrigation tape test joint comprising a first connecting section, a middle connecting section and a second connecting section, the first connecting section is used for connecting a test bench, and the second connecting section is used for connecting a drip irrigation tape to be tested; the middle connecting section is configured to move in the axial direction of the first connecting section, and the middle connecting section is movably connected with the second connecting section and moves along with movement of the middle connecting section. The connector can finely adjust the drip irrigation tape and adjust the drip irrigation tape from a loose state to a horizontal state, so that the test requirement is met, meanwhile, the original state of the drip irrigation tape can be well protected, and the drip irrigation tape is prevented from being twisted or bent and damaged in the adjusting process.

Description

Technical Field

[0001] The utility model relates to the technical field of drip irrigation belt performance testing, in particular to a drip irrigation belt testing joint. Background Art

[0002] Drip irrigation is the most effective way of water-saving irrigation, with a water utilization rate of up to 95%. Drip irrigation has a higher water-saving and yield-increasing effect than sprinkler irrigation. However, due to its narrow energy dissipation flow channel, it is very easy to be attached by solid particles, microorganisms, chemical precipitation, organic matter, nitrogen and phosphorus impurities in the drip irrigation water source, resulting in clogging of the drip irrigation belt, which may affect the uniformity of irrigation and the service life of the drip irrigation system, or even directly lead to the scrapping of the system. Therefore, it is necessary to conduct a comprehensive test on the anti-clogging performance of drip irrigation.

[0003] CN102288396A discloses a comprehensive test device for the anti-clogging performance of a drip irrigation device, which is mainly composed of a frame, a water supply system and a drip irrigation system. According to the national standard GB / T 19812.3-2017 "Plastic Water-Saving Irrigation Equipment Part 3: Inlaid Drip Irrigation Pipe and Drip Irrigation Tape", the test sample is "suspended horizontally on the test bench, with the drip hole facing upward and the end blocked", that is, a joint installed on the drip irrigation tape is set at the end of the test bench, and the end is blocked at the same time. Since the lengths of drip irrigation tapes of different specifications are different when testing, the fixed joint may cause the drip irrigation tape to be in a loose state, which cannot meet the requirement of the drip irrigation tape being in a horizontal state during the test.

[0004] Based on this, a drip irrigation belt test joint is needed to achieve fine-tuning of the drip irrigation belt and adjust it to a horizontal state to meet the test requirements. Utility Model Content

[0005] In view of the above problems, the utility model provides a drip irrigation belt test joint, which can achieve fine adjustment of the drip irrigation belt to make it level and meet the test requirements.

[0006] Specifically, the utility model provides a drip irrigation tape test connector, comprising:

[0007] a first connecting section;

[0008] The second connecting section is used to connect the drip irrigation belt to be tested;

[0009] The middle connecting section is configured to move along the axial direction of the first connecting section. The middle connecting section is movably connected to the second connecting section and moves along with the movement of the middle connecting section.

[0010] Furthermore, the middle connecting section is threadedly connected to the first connecting section.

[0011] Furthermore, the intermediate connecting section comprises:

[0012] A threaded sleeve section, which is threadedly connected to the first connecting section;

[0013] The movable segment is movably connected to the second connecting segment.

[0014] Furthermore, the cross section of the movable section is in the shape of a T-slot, the end of the second connecting section connected to the middle connecting section is in a T-shape, and the second connecting section is movably connected in the movable section.

[0015] Furthermore, a first bayonet is provided on the first connecting section.

[0016] Furthermore, the middle connecting section is provided with a second bayonet, and the second bayonet is used to rotate the middle connecting section.

[0017] Working principle:

[0018] By rotating the middle connecting section with a wrench, the middle connecting section and the second connecting section can be moved toward the first connecting section through the thread connected to the first connecting section, thereby adjusting the drip irrigation tape on the second connecting section from the original loose state to the horizontal state. At the same time, since the middle connecting section is movably connected to the second connecting section, when the middle connecting section rotates, the second connecting section will not move accordingly, thereby avoiding the problem of twisting of the drip irrigation tape.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] (1) The drip irrigation belt test connector provided by the utility model can be used to fine-tune the drip irrigation belt and adjust the drip irrigation belt from a relaxed state to a horizontal state, thereby meeting the test requirements.

[0021] (2) The joint is easy to install and adjust, saving manpower and improving work efficiency during testing.

[0022] (3) The drip irrigation belt is not easily twisted, bent or damaged during the adjustment process, and the joint can well protect the original state of the drip irrigation belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the test device for the anti-sediment clogging performance of the drip irrigation belt in Example 1;

[0024] Figure 2 It is a schematic diagram of the structure of the test bench in Example 1;

[0025] Figure 3 This is a schematic diagram of the structure of the neutron stand in Example 1;

[0026] Figure 4 is a cross-sectional view of the neutron stand of Example 1;

[0027] Figure 5Schematic diagram of the joint between two adjacent sub-frames in Example 1; (a) is a bolt connection, and (b) is a latch connection;

[0028] Figure 6 This is a schematic diagram of the installation of the leakage-proof component in Example 1;

[0029] Figure 7 is a schematic diagram of the mounting frame in Example 1;

[0030] Figure 8 It is an exploded view of the mounting frame and the joint in Example 1;

[0031] Fig. 9 is a half-section view of the joint in Example 1;

[0032] Fig.10 Schematic diagram of the principle of the joint in Example 1.

[0033] Reference numerals:

[0034] 1-water storage tank; 2-mixing system; 3-control console; 31-water supply pipe; 4-test bench; 41-sub-bench; 42-bolt; 43-latch; 44-latch sleeve; 45-leakage-proof part; 451-baffle; 46-slide rail; 47-universal wheel; 5-collection system; 51-collection box; 52-collection pipe; 6-filtration system; 7-mounting frame; 71-mounting screw sleeve; 72-fastening assembly; 721-fastening nut; 722-screw; 723-fastening plate; 8-joint; 81-first connecting section; 82-middle connecting section; 83-second connecting section; 84-first bayonet; 85-second bayonet; 9-drip irrigation belt to be tested. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0036] Example 1

[0037] like Figure 1 As shown, the present embodiment provides a test device for the anti-silt clogging performance of a drip irrigation belt, comprising: a water storage tank 1, a stirring system 2, a control console 3, a test bench 4, a collection system 5 and a filtration system 6. The water storage tank 1 is connected to the stirring system 2 and the filtration system 6 respectively, and the water storage tank 1, the stirring system 2, the control console 3 and the test bench 4 are connected through a water supply pipe 31. The water in the water storage tank 1 is pumped to the stirring system 2 to be prepared into test water, and then transported to the drip irrigation belt 9 to be tested on the test bench 4 for testing. After the water drips from the drip irrigation belt 9 to be tested, it flows into the collection system 5 from the drainage port at the bottom of the test bench 4 for recovery. The recovered test water is then sent to the filtration system 6, and after filtering out impurities such as silt in the test water, it is transported to the water storage tank 1 for storage for use in the next test.

[0038] Specifically, the stirring system 2 consists of two stirring tanks, one for use and one for standby. The two stirring tanks are connected to the same water supply pipe 31, and the water use is controlled by a valve. When the first stirring tank has finished stirring the turbid water for the test, the water supply switch of the second stirring tank is turned on, and the valve of the first stirring tank is closed to prepare the turbid water for the next test. The double stirring tank design can realize the preparation of the mixed water for the test while the test is being carried out. The entire test process is carried out continuously and can be proportioned as needed, which is simple to operate.

[0039] Control system 3 is composed of a computer system, a solenoid valve, and a pressure sensor. The pressure sensor collects pressure data in real time. The computer displays the pressure curve, inputs parameters, and controls actions. The opening of the solenoid valve is adjusted during the test. The pressure can be supplemented during the test to provide stable pressure for the test.

[0040] like Figure 2-5 As shown, the test bench 4 is composed of several sub-racks 41 connected end to end. The sub-racks 41 are made of stainless steel and have universal wheels 47 at the bottom of the legs to facilitate the movement of the sub-racks 41. The cross-section of the sub-racks 41 is funnel-shaped to facilitate the collection of silt and water. The silt and water collected by the sub-racks 41 are collected at the bottom drain port and then enter the collection system 5. Two adjacent sub-racks 41 can be connected by bolts 42 (such as Figure 5 (a)) or latch 43 (such as Figure 5 (b)), wherein when bolts 42 are used for connection, the bolts 42 need to pass through the legs of the two sub-frames 41, and when latches 43 are used for connection, latch sleeves 44 are provided on the outer sides of the legs of the sub-frames 41, and the latches 43 are U-shaped, and the two ends of the latch sleeves 44 are respectively inserted into the two latch sleeves 44 to achieve the connection of the two sub-frames 41. Figure 6 As shown, a leak-proof member 45 is provided at the joint of the upper surfaces of the two sub-frames 41. The leak-proof member 45 is provided in the shape of a cover at the joint of the two adjacent sub-frames 41. After covering the joint, the water dripping from the drip irrigation belt 9 to be tested can be effectively prevented from leaking from the joint during the test. Baffles 451 extending in three directions, left, right and upward, are provided at both ends to block the vertical joint of the two sub-frames 41 to prevent water from leaking from the vertical joint during the test.

[0041] like Figure 7-8As shown, the sub-frame 41 is detachably provided with a mounting frame 7 and a joint 8, and slide rails 46 are provided on both sides of the sub-frame 41. The two ends of the slide rails 46 are open structures. The two ends of the mounting frame 7 are slidably connected in the slide rails 46, and are provided with mounting screw sleeves 71 for installing the joint 8 and fastening components 72 for fixing the mounting frame 7. There are two fastening components 72, which are respectively located at the two ends of the mounting frame 7, and include: a fastening nut 721, a screw rod 722 and a fastening plate 723. The screw rod 722 is fixed on the top of the fastening plate 723. The screw rod 722 passes through the mounting frame 7 and is threadedly connected with the fastening nut 721. By rotating the fastening nut 721, the fastening nut 721 can be pressed against the mounting frame 7. At the same time, the top of the fastening plate 723 presses against the bottom of the slide rail 46 to form a clamping structure, thereby fixing the position of the mounting frame 7. Since the test bench 4 adopts a multi-section assembly method, when testing drip irrigation tapes of different specifications, the length of the test bench 4 will change (that is, the number of assembled sub-benches 41 will change). Therefore, the utility model adopts a detachable mounting frame 7 to install the joint 8, so that the position of the end joint 8 of the drip irrigation tape can be adjusted according to the position of the drip irrigation tape of different specifications, thereby meeting the installation requirements of drip irrigation tapes of different specifications.

[0042] Furthermore, in order to meet the requirements of the national standard GB / T 19812.3-2017 "Plastic Water-saving Irrigation Equipment Part 3: Inlaid Drip Irrigation Pipe and Drip Irrigation Belt" for test samples, "suspend the sample horizontally on the test bench, with the drip hole facing upward and the end blocked", the end joint 8 adopts a length-adjustable structure, and the joint 8 adopts 3D printing technology and is integrally formed, with low manufacturing cost. Figure 8-10As shown, the joint 8 includes: a first connecting section 81, an intermediate connecting section 82 and a second connecting section 83. The two ends of the first connecting section 81 are respectively threadedly connected to the mounting screw sleeve 71 and the intermediate connecting section 82. The intermediate connecting section 82 includes a threaded sleeve section 821 and a movable section 822. The threaded sleeve section 821 is threadedly connected to the first connecting section 81. The cross section of the movable section 822 is a T-shaped groove structure. The second connecting section 83 is movably connected to the first connecting section 81. The second connecting section 83 is provided with a thread for connecting the drip irrigation belt 9 to be tested. The first connecting section 81 is provided with a first bayonet 84, which is clamped by a wrench to facilitate the connection of the first connecting section 81 with the mounting screw sleeve 71. The intermediate connecting section 82 is provided with a second bayonet 85, so that the intermediate connecting section 82 can be rotated by a wrench. Specifically, when installing the drip irrigation belt 9 to be tested, first adjust the position of the mounting frame 7 along the slide rail 46, then connect the first connecting section 81 of the joint 8 to the mounting screw sleeve 71, then connect the drip irrigation belt 9 to be tested to the second connecting section 83, and then use a wrench to rotate the intermediate connecting section 82 to move it toward the first connecting section 81, thereby driving the drip irrigation belt 9 to be tested to be tightened, and fine-tune the test drip irrigation belt 9, adjusting it from the original relaxed state to a horizontal state to meet the test requirements of the drip irrigation belt. At the same time, since the intermediate connecting section 82 is movably connected to the second connecting section 83, the problem of twisting of the drip irrigation belt when fine-tuning the test drip irrigation belt 9 can be avoided.

[0043] The collection system 5 includes: a collection box 51 and a collection pipe 52. The collection box 51 is arranged below the first sub-rack 41. The collection box 51 is connected to the filtration system 6, and the collected water is sent to the filtration system 6 for filtration. The collection pipe 52 is arranged below the sub-rack 41 and is connected to the drainage port at the bottom of the sub-rack 41. The collection pipes 51 at the bottom of two adjacent sub-racks 41 are connected to recycle the test water into the collection box 52. Preferably, the collection pipe 52 can be arranged with the end thereof inclined at a certain angle toward one end of the collection box 51 to facilitate the discharge of silt and water flow and prevent silt from clogging the pipe.

[0044] The filtration system 6 adopts a two-stage filtration method. The first-stage filtration adopts screening and sedimentation, and the second-stage filtration adopts a filtration device. The turbid water used for the test is filtered and stored in the water storage tank 1, so as to keep the test water recycled during the entire test process and achieve the purpose of saving water, energy and environmental protection.

[0045] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A drip irrigation tape test connector, characterized in that: include: A first connecting section (81); A second connecting section (83), used for connecting the drip irrigation belt (9) to be tested; The middle connecting section (82) is configured to move along the axial direction of the first connecting section (81), and the middle connecting section (82) is movably connected to the second connecting section (83) and moves with the movement of the middle connecting section (82).

2. The drip irrigation tape test connector according to claim 1, characterized in that: The middle connecting section (82) is threadedly connected to the first connecting section (81).

3. The drip irrigation tape test connector according to claim 2, characterized in that: The intermediate connecting section (82) comprises: A threaded sleeve section (821) threadedly connected to the first connecting section (81); The movable section (822) is movably connected to the second connecting section (83).

4. The drip irrigation tape test connector according to claim 3, characterized in that: The cross section of the movable section (822) is in the shape of a T-shaped groove, the end of the second connecting section (83) connected to the middle connecting section (82) is in the shape of a T, and the second connecting section (83) is movably connected in the movable section (822).

5. The drip irrigation tape test connector according to claim 1, characterized in that: The first connecting section (81) is provided with a first bayonet (84).

6. The drip irrigation tape test connector according to any one of claims 2 to 4, characterized in that: The middle connecting section (82) is provided with a second bayonet (85), and the second bayonet (85) is used to rotate the middle connecting section (82).

Images