TWM598035U - Drip-seeping type drip irrigation pipe - Google Patents

Abstract

A drip irrigation pipe includes a pipe body and a drainage device. Each drainage device includes: a partition, which is spaced from the inner wall of the tube, and has an inlet plate part, an outlet plate part, and an intermediate plate part; two connecting plates, which together with the partition and the tube body define the inlet speed increasing flow channel and the outlet deceleration The flow channel; and the bumps are arranged in the middle plate of the partition and connected between the connecting plates, and the height of the top surface of the bumps is lower than the height of the top surface of the connecting plate. The connecting plate also defines a constant velocity flow channel together with the bump and the pipe body. Each outlet hole of the pipe body is located above the junction of the corresponding inlet velocity increasing flow channel and the constant velocity flow channel. When the water flows through the inlet speed-increasing flow channel, it will be blocked by the bump and turned, so a part of the water will be guided upward through the corresponding water outlet to provide drip irrigation water.

Description

Drip irrigation pipe

The new model relates to an irrigation pipe, in particular to a drip irrigation pipe.

In areas with low rainfall and precious water resources, the amount of water to be irrigated needs to be considered when watering plants to avoid wasting water resources and achieve the purpose of making good use of the limited amount of water for irrigation, so drip irrigation pipes are used for irrigation. Referring to Figures 1 and 2, the Republic of China Invention Patent No. I486120 discloses an existing agricultural drip irrigation pipe, which includes a pipe body 1 on which a main area 10 and a series of irrigation units 21 are formed. , A main flow channel 11 is formed in the competent area 10. Each watering unit 21 has a partition 29 and a narrow part 24 spaced apart from the main pipe area 10, and an open end is formed at one end adjacent to the outer water outlet 27.

Each watering unit 21 forms a speed increasing section 26 of gradually decreasing size at the water inlet end of the necked part 25, and the necking part 25 forms a decreasing speed section 28 of increasing size at the water outlet end, wherein the outer water outlet 27 is located in the neck The constriction 25, the deceleration section 28 and the speed increase section 26 are at or near the positive pressure and negative pressure transition.

As shown in Figure 1, after the water flowing in the main runner 11 enters the speed increasing section 26 of one of the irrigation units 21, it will then enter the constricted part 25. As the diameter becomes smaller, the water flow speed increases, resulting in negative pressure The Venturi effect. Then, a part of the water after passing through the necked part 25 will flow out through the water outlet 27 outside the main pipe area 10, and the other part of the water will continue to flow to the next irrigation unit 21. Therefore, the main feature of the aforementioned ROC invention patent No. I486120 is that the venturi effect produced when the water passes through the irrigation unit 21 will have a negative pressure effect, so the water output from the water outlet 27 outside the main area 10 can be suppressed, and thus Achieve a small amount of water for irrigation.

Therefore, the purpose of the present invention is to provide a drip irrigation pipe.

Therefore, the drip irrigation pipe of the new type is suitable for filling water in it and allowing the water to pass through the pipe wall to provide drip irrigation water to the outside, and includes: a pipe body with a plurality of pipes along it The water outlet holes arranged at intervals in the length direction; and a plurality of drainage devices are arranged on the inner wall surface of the pipe body and correspond to the water outlet holes of the pipe body respectively. Each drainage device includes: a partition plate spaced from the inner wall surface of the tube body, and has an inlet plate portion, an outlet plate portion, and an intermediate plate portion between the inlet plate portion and the outlet plate portion ; Two connecting plates, which are spaced apart from each other to connect the partition and the pipe body, and together with the partition and the pipe body define a water supply inflow and increase the speed of the water and correspond to the inlet plate portion of the partition The inlet speed-increasing flow channel of the, and an outlet decelerating flow channel of the outlet plate portion of the partition plate corresponding to the outlet decelerating flow path of the water supply liquid flowing out and decelerating the water liquid; and a bump arranged on the middle plate portion of the partition plate , And is connected between the connecting plates, wherein the height of the top surface of the bump is lower than the height of the top surface of the connecting plates, wherein the connecting plates are also defined together with the bump and the tube body A constant velocity flow passage between the inlet speed increasing flow passage and the outlet decelerating flow passage, wherein the depth of the constant velocity flow passage is smaller than the depth of the inlet speed increasing flow passage and the outlet decelerating flow passage. Each outlet hole of the pipe body is located above the junction of the corresponding inlet velocity increasing flow channel and the constant velocity flow channel. When the water flows through the inlet velocity increasing flow channel, it will be blocked by the bump and turn, so a part of The water will be guided upward through the corresponding outlet holes to provide drip irrigation water to the outside.

The effect of the new model is: because the flow channel of the inlet speed increasing flow channel gradually shrinks, the flow velocity of the water at this place is increased, thereby generating a negative pressure venturi effect, which can suppress the water output of the water outlet hole of the pipe body, thus achieving Irrigation effect of a small amount of water; the bump can block the water and make it turn, so a part of the water will be guided upwards through the water outlet to provide drip irrigation water.

Referring to Figures 3 to 5, the embodiment of the drip irrigation pipe of the present invention is suitable for filling water 9 in it and allowing the water 9 to pass through the pipe wall to provide drip irrigation water to the outside. In this embodiment, the drip irrigation pipe includes a pipe body 3 and several drainage devices 4.

As shown in Figures 3 and 4, in this embodiment, the pipe body 3 is provided with a plurality of water outlet holes 30 equally spaced along its length direction X, wherein the shape of each water outlet hole 30 may be, for example, Round etc. The drainage devices 4 are arranged on the inner wall surface of the pipe body 3 and correspond to the water outlet holes 30 of the pipe body 3 respectively, that is, the drainage devices 4 are also along the length direction X, etc. Arranged at intervals from the ground. However, in other embodiments of the drip irrigation pipe of the present invention, the outlet holes 30 may also be arranged at unequal intervals, and the drainage devices 4 are also arranged at unequal intervals.

Referring to FIGS. 4 to 8, in this embodiment, each drainage device 4 includes a partition 40, two connecting plates 41, and a bump 43.

As shown in Figures 4, 5, and 6, the partition 40 is spaced from the inner wall surface of the pipe body 3, and has an inlet plate portion 401, an outlet plate portion 402, and an intervening between the inlet plate portion 401 and the outlet The middle plate portion 403 between the plate portions 402.

The connecting plates 41 connect the partition 40 and the pipe body 3 at intervals, and together with the partition 40 and the pipe body 3 define a water supply 9 to flow in and increase the speed of the water 9 and correspond to the partition. The inlet speed increasing flow passage 421 of the inlet plate portion 401 of the plate 40 and a water supply 9 flowing out and decelerating the water liquid 9 correspond to the outlet decelerating flow passage 422 of the outlet plate portion 402 of the partition 40. In this embodiment, the length L1 of the inlet speed increasing flow passage 421 is much smaller than the length L2 of the outlet decelerating flow passage 422, so the inlet speed increasing flow passage 421 will gradually become smaller due to the flow passage, so that the flow rate of the water 9 Accelerate, thereby generating a negative pressure Venturi effect, and the outlet deceleration flow channel 422 has a length L2 that is much larger than the length L1 of the inlet speed increase flow channel 421, and the outlet deceleration flow channel 422 gradually becomes larger due to the flow channel Therefore, the water 9 will slow down relatively smoothly and flow to the next drainage device 4.

The bump 43 is arranged on the middle plate portion 403 of the partition 40, and is connected between the connecting plates 41, and together with the connecting plates 41 and the pipe body 3, defines an intervening increasing speed The constant velocity flow passage 423 between the flow passage 421 and the exit deceleration flow passage 422. In this embodiment, the shape of the bump 43 can be, for example, a rectangular body.

Since the height of the top surface of the bump 43 is lower than the height of the top surface of the connecting plates 41, the depth of the constant velocity flow passage 423 is smaller than the depth of the inlet speed increasing flow passage 421 and the outlet decelerating flow passage 422. As shown in FIG. 4, in this embodiment, since each water outlet 30 of the pipe body 3 is located above the junction of the corresponding inlet velocity increasing flow channel 421 and the constant velocity flow channel 423, when the water 9 flows through When the inlet speed increasing flow channel 421, the water 9 will be blocked by the bump 43 and turned, so a part of the water 9 will be guided upwards through the corresponding outlet hole 30 to provide drip irrigation water. .

9 and 10, in a variation of the foregoing embodiment, the length L1 of the inlet speed increasing flow passage 421 is approximately equal to the length L2 of the outlet deceleration flow passage 422, and this variation also has the inlet speed increasing flow passage 421 can produce a negative pressure venturi effect, and the outlet deceleration channel 422 can make the water 9 slow down and flow to the next drainage device 4 more gently.

Referring to FIG. 11, in another variation of the foregoing embodiment, the length L1 of the inlet velocity increasing flow passage 421 is much greater than the length L2 of the outlet deceleration flow path 422, and the other variation also has the inlet velocity increasing flow The passage 421 can generate a negative pressure Venturi effect, and the outlet deceleration passage 422 can slow down the water 9 smoothly and flow to the next drainage device 4.

In summary, the new drip irrigation pipe has the following advantages: (1) The speed increasing flow channel 421 at the entrance gradually shrinks, so the flow rate of the water 9 increases faster, thus generating a negative pressure venturi effect. It can suppress the amount of water from the water outlet 30 of the pipe body 3, thus achieving a small amount of water output; (2) the bump 43 will block the water 9 and divert the water 9 so that a part of the water 9 will be guided Go up through the outlet hole 30 to provide drip irrigation water 9 outward; (3) The outlet deceleration channel 422 gradually becomes larger, so that the water 9 will slow down relatively smoothly and flow to the next drainage device 4 ; So it can indeed achieve the purpose of costing the new style.

However, the above are only examples of the present model. When the scope of implementation of the present model cannot be limited by this, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.

3: Tube body 30: water outlet 4: Drainage device 40: partition 401: entrance board 402: Export Board Department 403: Intermediate Plate 41: connecting plate 421: inlet velocity increasing flow channel 422: Outlet deceleration runner 423: Constant velocity flow channel 43: bump 9: Water liquid L1: length L2: length X: length direction

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, among which: Figure 1 is a perspective view illustrating an existing drip irrigation pipe; Figure 2 is a cross-sectional view illustrating the existing drip irrigation pipe; Figure 3 is a perspective view illustrating an embodiment of the new drip irrigation pipe of the present invention; Figure 4 is a cross-sectional view illustrating this embodiment; Figure 5 is a perspective view illustrating the drainage device in this embodiment; Figure 6 is a top view illustrating the drainage device; Figure 7 is a front view illustrating the drainage device; Figure 8 is a front view illustrating the embodiment; Figure 9 is a perspective view illustrating a drainage device in a modification of this embodiment; Figure 10 is a top view illustrating the drainage device in this modification; and Fig. 11 is a plan view illustrating the drainage device in another modification of this embodiment.

3: Tube body

30: water outlet

4: Drainage device

43: bump

X: length direction

Claims (7)

A drip-permeable drip irrigation pipe, which is suitable for filling it with water and allows the water to pass through the pipe wall to provide drip-permeable drip irrigation water, and contains: A pipe body with several water outlet holes arranged at intervals along its length; and Several drainage devices are arranged on the inner wall surface of the pipe body and respectively correspond to the water outlet holes of the pipe body. Each drainage device includes A partition board spaced from the inner wall surface of the tube body, and has an inlet plate portion, an outlet plate portion, and an intermediate plate portion between the inlet plate portion and the outlet plate portion, Two connecting plates connect the partition and the pipe body at intervals, and together with the partition and the pipe body, define a water supply to flow in and increase the speed of the water and correspond to the inlet plate of the partition The inlet speed increasing flow path, and the outlet decelerating flow path of the outlet plate portion of the partition plate corresponding to the outlet decelerating flow path of the outlet plate portion of the partition plate that flows out and decelerates the water liquid, and A bump is arranged on the middle plate portion of the partition board and connected between the connecting plates. The height of the top surface of the bump is lower than the height of the top surface of the connecting plates, wherein the The connecting plate, together with the bump and the tube body, defines a constant velocity flow passage between the inlet increasing speed flow passage and the outlet decelerating flow passage, wherein the depth of the constant velocity flow passage is smaller than the inlet increasing speed The depth of the flow channel and the outlet deceleration flow channel; Among them, each water outlet hole of the pipe body is located above the junction of the corresponding inlet velocity increasing flow channel and the constant velocity flow channel. When the water flows through the inlet velocity increasing flow channel, it will be blocked by the bump and turn around. A part of the water will be guided upwards through the corresponding outlet holes to provide drip irrigation water. The drip irrigation pipe according to claim 1, wherein the shape of each water outlet hole of the pipe body is circular. The drip irrigation pipe of claim 1, wherein the shape of the bump is a rectangular body. The drip irrigation pipe of claim 1, wherein the length of the inlet velocity increasing flow channel is less than the length of the outlet decelerating flow channel. The drip irrigation pipe of claim 1, wherein the water outlet holes of the pipe body are equally spaced apart, and the drainage devices are also equally spaced apart. The drip irrigation pipe of claim 1, wherein the length of the inlet velocity increasing flow channel is greater than the length of the outlet decelerating flow channel. The drip irrigation pipe of claim 1, wherein the length of the inlet velocity increasing flow channel is equal to the length of the outlet decelerating flow channel.

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