CN108925276B - A hydraulic syringe - Google Patents

Abstract

The invention discloses a hydraulic syringe, which includes a casing and a needle arranged outside the casing. The casing is provided with a needle driving device and a medicinal liquid injection device. Compared with the prior art, the injectable medication of the present invention greatly increases the use efficiency of the medicinal solution and saves costs. The injectable medication improves the absorption efficiency of the medicinal solution by cotton and greatly reduces the environmental impact on the air and soil caused by residual pesticides after spraying. pollution, low machinery manufacturing cost, low sales price, low cost, easy to use, light to carry, effectively reducing the actual burden on farmers and improving work efficiency. Hydraulic injectors completely change the traditional way of spraying pesticides. They can be used directly wherever needed, making efficiency, The advantages in many aspects such as pollution and harm to the human body have been significantly improved, and the application prospects are broad.

Description

A hydraulic syringe

Technical field

The present invention relates to the technical field of pesticide application, in particular to a hydraulic injector.

Background technique

Pesticides are key reagents needed for crops. It can effectively prevent pests and diseases and increase yield. However, there are many problems faced in actual pesticide spraying. Spraying large areas is too wasteful and harmful to the human body. Moreover, large-area use requires carrying overweight pots. Pesticides cannot be used on outdoor crops in rainy weather. Large-area use cannot directly act on crops, resulting in a waste of pesticides. Manual spraying will cause unevenness and affect efficiency.

Contents of the invention

The purpose of the present invention is to solve the deficiencies existing in the prior art and provide a hydraulic injector.

In order to achieve the above objects, the present invention is implemented according to the following technical solutions:

A hydraulic syringe includes a housing and a needle arranged outside the housing. The housing is provided with a needle driving device and a medicinal liquid injection device. The needle driving device includes a hydraulic oil tank, a first pressure switch, and two fixed The hydraulic cylinder in the front end of the housing is equipped with a hydraulic piston rod. The end of the hydraulic piston rod is fixedly connected with a connecting plate. The needle is fixed on the connecting plate. The ends of the two hydraulic cylinders are connected. , the end of one of the hydraulic cylinders is connected to the hydraulic oil in the hydraulic oil tank through an oil pipe, and a switch is provided on the oil pipe. The first pressure switch includes a first cylinder fixed in the housing, and one end of the first cylinder is equipped with a switch. There is a first piston rod, the end of the first piston rod extends to the outside of the housing, the other end of the first cylinder is connected to the hydraulic oil in the hydraulic oil tank through an oil pipe, and the oil pipe is connected to a first one-way valve, and another The end of the hydraulic cylinder is connected to the other end of the first cylinder through an oil pipe and a second one-way valve is connected to the oil pipe. An air vapor valve is provided on the upper part of the hydraulic oil tank; the liquid injection device includes a drug storage container, a second Pressure switch, the top of the medicine storage container is provided with a medicine liquid inlet, and the medicine liquid inlet is provided above the housing. The bottom of the medicine storage container is connected to one end of the needle, and the second pressure switch It includes a second cylinder fixed on the housing. One end of the second cylinder is provided with a second piston rod. The end of the second piston rod extends to the outside of the housing. The other end of the second cylinder passes through the first hose. It is connected to the upper side of the medicine storage container. A third one-way valve is connected to the middle part of the first hose. The inlet end of the third one-way valve is connected to the outside of the housing through a second hose. A fourth one-way valve is connected to the second hose. The inlet end of the fourth one-way valve is connected to the air inlet of the second hose.

Further, the end of the first piston rod located outside the housing is provided with a first pressing handle, and a spring is connected between the first pressing handle and the first cylinder wall; the second piston rod located outside the housing A second pressing handle is provided at the end, and a spring is also connected between the second pressing handle and the second cylinder wall.

Further, the housing is provided with a fixing clip for fixing the housing to the plant straw.

Compared with the prior art, the injectable medication of the present invention greatly increases the use efficiency of the medicinal solution and saves costs. The injectable medication improves the absorption efficiency of the medicinal solution by cotton and greatly reduces the environmental impact on the air and soil caused by residual pesticides after spraying. pollution, low machinery manufacturing cost, low sales price, low cost, easy to use, light to carry, effectively reducing the actual burden on farmers and improving work efficiency. Hydraulic injectors completely change the traditional way of spraying pesticides. They can be used directly wherever needed, making efficiency, The advantages in many aspects such as pollution and harm to the human body have been significantly improved, and the application prospects are broad.

Description of the drawings

Figure 1 is a schematic structural diagram of the present invention.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments. The schematic embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

As shown in Figure 1, a hydraulic syringe in this embodiment includes a housing 1 and a needle 4 arranged outside the housing 1. The housing 1 is provided with a needle driving device and a medicinal liquid injection device. The needle The driving device includes a hydraulic oil tank 16, a first pressure switch, and two hydraulic cylinders 7 fixed in the front end of the housing 1. The hydraulic cylinders 7 are equipped with hydraulic piston rods 8, and the ends of the hydraulic piston rods 8 are fixedly connected. There is a connecting plate 5, the needle 4 is fixed on the connecting plate 5, the ends of the two hydraulic cylinders 7 are connected, and the end of one of the hydraulic cylinders is connected to the hydraulic oil in the hydraulic oil tank 16 through the oil pipe 24, and the oil pipe is provided with There is a switch 17. The first pressure switch includes a first cylinder 20 fixed in the housing 1. One end of the first cylinder 20 is provided with a first piston rod 21, and the end of the first piston rod 21 extends to Outside the housing 1, the other end of the first cylinder 21 is connected to the hydraulic oil in the hydraulic oil tank 16 through an oil pipe 24, and the oil pipe is connected to a first one-way valve 18. An air steam valve 26 is installed on the upper part of the hydraulic oil tank 16. The air steam valve 26 (consisting of a pressure valve (steam valve) and a vacuum valve (air valve)) can be directly purchased and installed for use. The function of the air steam valve 26 is to maintain the pressure balance in the hydraulic oil tank 16, specifically: When the internal pressure of the hydraulic oil tank 16 is greater than the outside, the pressure valve (steam valve) opens to discharge the gas in the hydraulic oil tank 16; when the internal pressure of the hydraulic oil tank 16 is smaller than the outside, the vacuum valve (air valve) opens, and the external gas It can enter the hydraulic oil tank 16; the end of the other hydraulic cylinder is connected to the other end of the first cylinder 21 through the oil pipe 24, and the oil pipe is connected with a second one-way valve 19; the medical liquid injection device includes a storage container 2. The second pressure switch. The top of the medicine storage container 2 is provided with a medicine liquid adding port 6. Of course, in order to ensure the sealing performance of the medicine storage container 2, it is best to install a device inside the medicine liquid adding port 6 to prevent the added medicine liquid from flowing out. One-way valve (not shown in the figure), a medicinal liquid inlet 3 is provided above the housing 1 opposite the medicinal liquid inlet 6, the bottom of the medicinal storage container 2 is connected to one end of the needle 4, and the second pressure switch It includes a second cylinder 12 fixed in the housing 1. One end of the second cylinder 12 is provided with a second piston rod 13. The end of the second piston rod 13 extends to the outside of the housing 1. The second cylinder 12 The other end of the first hose 9 is connected to the upper side of the medicine storage container 2. The middle part of the first hose 9 is connected to a third one-way valve 10. The inlet end of the third one-way valve 10 is connected to the upper side of the medicine storage container 2 through a second hose 25. Outside the housing 1 , a fourth one-way valve 11 is connected to the second hose 25 , and the inlet end of the fourth one-way valve 11 is connected to the air inlet of the second hose 25 .

In this embodiment, the end of the first piston rod 21 located outside the housing 1 is provided with a first pressing handle 22, and a spring 15 is connected between the first pressing handle 22 and the wall of the first cylinder 20; The end of the second piston rod 13 located outside the housing 1 is provided with a second pressing handle 14 , and a spring 15 is also connected between the second pressing handle 14 and the wall of the second cylinder 12 . The function of the spring 15 is to enable the first pressing handle 22 and the second pressing handle 14 to rebound quickly after being pressed.

In this embodiment, in order to facilitate clamping the entire device on the plant straw or the main stem, the lower part of the housing 1 is fixed with a fixing clip 23 for fixing the housing 1 on the plant straw.

The following uses the hydraulic syringe in the above embodiment to inject medicine into cotton: first, add the medicine liquid into the medicine storage container 2 from the medicine liquid inlet 6 on the top of the medicine storage container 2 through the medicine liquid injection port 3 on the housing 1, and then Fix the main stem of cotton with the fixing clip 23, first turn off the switch 17, continuously press and release the first pressing handle 22, due to the existence of the first one-way valve 18 and the second one-way valve 19, after releasing the first pressing handle When the handle 22 is turned, the hydraulic oil flows from the hydraulic oil tank 16 through the second one-way valve 19 into the first cylinder 20. At this time, the internal pressure of the hydraulic oil tank 16 is smaller than the external pressure, and the vacuum valve (air valve) of the air steam valve 26 is opened. External air can enter the hydraulic oil tank 16 to balance the pressure in the hydraulic oil tank 16; pressing the first pressing handle 22 again can push the hydraulic oil in the first cylinder 20 into the oil pipe 24 and thereby push the hydraulic piston rod 8 toward the For forward movement, since the advancement distance of each pressing of the first pressing handle 22 is small, it is necessary to press the first pressing handle 22 multiple times to move the connecting plate 5 forward to drive the needle 4 to push into the main cotton stem; press again The second pressing handle 14 injects air into the medicine storage container 2 through the first hose 9 to increase the pressure in the medicine storage container 2, so that the medicine liquid in the medicine storage container 2 is injected into the cotton main stem through the needle 4, and the injection After completion, release the second pressing handle 14, and the air will flow into the second hose 25 from the hole at the bottom through the fourth one-way valve 11 to make up for the pressure difference in the second hose 25. After the button of the second pressing handle 14 is restored, , then release the first pressing handle 22 and open the switch 17 to allow the hydraulic oil in the hydraulic cylinder 8 to flow back into the hydraulic oil tank 16. The internal pressure of the hydraulic oil tank 16 is greater than the external pressure, and the pressure valve of the air steam valve 26 (steam valve) ) is opened to discharge the gas in the hydraulic oil tank 16, thereby balancing the pressure in the hydraulic oil tank 16. When the hydraulic oil in the hydraulic cylinder 8 flows back to the hydraulic oil tank 16, it will drive the needle 4 to withdraw from the cotton main stem. , complete the injection. Since the syringe is directly inserted into the main stem to administer medication, it changes the traditional way of leaf absorption and effectively improves pesticide utilization. Pesticides themselves have certain toxicity. Direct injection reduces the human body's exposure to pesticide smoke and reduces harm to the human body. There is no need to waste pesticides. In the volatilization of land and air, unnecessary pollution to the environment can be reduced.

The technical solution of the present invention is not limited to the above-mentioned specific embodiments. All technical modifications made based on the technical solution of the present invention fall within the protection scope of the present invention.

Claims (1)

1. A hydraulic injector, includes casing and the syringe needle of setting outside the casing, its characterized in that: the needle driving device comprises a hydraulic oil tank, a first pressure switch and two hydraulic cylinders fixed in the front end of the shell, wherein hydraulic piston rods are assembled in the hydraulic cylinders, the end parts of the hydraulic piston rods are fixedly connected with connecting plates, the needle is fixed on the connecting plates, the tail ends of the two hydraulic cylinders are communicated, the tail end of one hydraulic cylinder is communicated with hydraulic oil in the hydraulic oil tank through an oil pipe, a switch is arranged on the oil pipe, the first pressure switch comprises a first cylinder barrel fixed in the shell, a first piston rod is arranged in one end of the first cylinder barrel, the end part of the first piston rod extends to the outside of the shell, the other end of the first cylinder barrel is communicated with the hydraulic oil in the hydraulic oil tank through an oil pipe, a first one-way valve is connected to the other end of the first cylinder barrel through the oil pipe, a second one-way valve is connected to the oil pipe, and an air valve is arranged on the upper part of the hydraulic oil tank; the liquid medicine injection device comprises a liquid medicine storage container and a second pressure switch, wherein a liquid medicine inlet is formed in the top of the liquid medicine storage container, a liquid medicine injection opening is formed in the upper portion of a shell, which is opposite to the liquid medicine inlet, the bottom of the liquid medicine storage container is communicated with one end of a needle head, the second pressure switch comprises a second cylinder barrel fixed on the shell, a second piston rod is arranged in one end of the second cylinder barrel, the end part of the second piston rod extends to the outside of the shell, the other end of the second cylinder barrel is communicated with one side of the upper part of the liquid medicine storage container through a first hose, the middle part of the first hose is connected with a third one-way valve, the inlet end of the third one-way valve is connected to the outside of the shell through a second hose, a fourth one-way valve is connected to the second hose, and the inlet end of the fourth one-way valve is connected with the air inlet of the second hose; the end part of the first piston rod positioned outside the shell is provided with a first pressing handle, and a spring is connected between the first pressing handle and the first cylinder barrel wall; the end part of the second piston rod outside the shell is provided with a second pressing handle, and a spring is also connected between the second pressing handle and the second cylinder wall; the shell is provided with a fixing clamp for fixing the shell on the plant straw.