CN204239351U - A kind of liquid extractor - Google Patents

Abstract

The utility model relates to the technical field of petrochemical industry, in particular to a liquid extractor. The liquid extractor includes a straight cylinder body, a liquid outlet pipe, a piston, a piston rod, an upper end cover, and an exhaust plug. A second one-way valve and a first one-way valve are respectively arranged at the bottom of the straight cylinder body and the center of the piston. The upper end cover of the main body has a vent hole and a vent plug matching the vent hole. The siphon phenomenon can be quickly established by driving the piston up and down through the pull rod, and the liquid in the liquid storage container is sucked into the straight cylinder and discharged from the side of the straight cylinder. The outlet side pipe on the wall is discharged, and the siphon phenomenon can be quickly relieved by opening the exhaust plug. In the above process, it can be realized by pulling the pull rod for many times. The operation is flexible and convenient without limitation. The liquid in the pipe can flow out quickly, and the liquid in the straight body can be discharged through the exhaust hole, and there will be no residual liquid in the straight body, so that no waste of resources will be caused.

Description

a liquid extractor

technical field

The utility model relates to the technical field of petrochemical industry, in particular to a liquid extractor.

Background technique

At present, petrochemical and other industries usually use iron barrels (generally 200L) as circulation containers for liquid commodities (crude oil, diesel oil, liquid chemical raw materials, etc.). In actual production, tools such as electric pumps, hand pumps, and manual extractors are generally used to extract these liquids from iron drums. However, electric pumps have high efficiency but are complex in structure and high in price, and need to work in an environment with electricity, which is inflexible and inconvenient to use; hand pumps are low in efficiency and laborious, and their structure is more complicated; ordinary manual extractors have a simpler structure , but when using it, it is necessary to continuously pull up and down the pull rod of the liquid extractor, which is laborious and low in work efficiency.

The Chinese patent with the publication number CN2690641Y discloses a simple liquid self-priming device, which mainly includes an "n" shaped curved pipe, a liquid introduction bucket, a check valve, and a faucet. The "n" shaped curved pipe includes a semicircular curved pipe and a connecting At the barrel inner tube and barrel outer tube at both ends of the semicircular curved tube, the liquid introduction bucket is arranged at the junction of the semicircular curved tube and the barrel outer tube. Fill the priming liquid in the liquid priming bucket, open the tap, and the water will flow from the barrel inner pipe to the barrel outer pipe. The liquid self-suction device has a simple structure, and the liquid can be taken out without using external force. However, the device needs to inject the suction liquid before use, and the operation is cumbersome and inflexible.

The Chinese patent application whose publication number is CN103133432A discloses a siphon. An opening is provided on the pipe wall of the siphon. The liquid will flow out of the liquid port; the U.S. patent with the publication number US2012000539A1 discloses a siphon, which mainly includes a liquid flow pipe, a plug arranged in the flow pipe and a device for moving the plug, so that the liquid is transported from one storage unit to another A storage unit, but the mechanism for moving the plug is complex and inflexible in operation. Although the devices disclosed in these two patents use the siphon principle to absorb liquid, their use conditions are limited, the operation is inflexible and inconvenient, and the siphon phenomenon cannot be quickly removed when the liquid extraction device is not in use.

Therefore, aiming at the above deficiencies, the utility model provides a liquid extractor.

Utility model content

(1) Technical problems to be solved

The purpose of the utility model is to provide a flexible and convenient liquid extraction device, which can solve the problem that the existing liquid extraction device cannot quickly remove the siphon phenomenon when it is not in use.

(2) Technical solution

In order to solve the above technical problems, the utility model provides a liquid extractor, which includes a straight cylinder body, a liquid outlet pipe, a piston, a piston rod, an upper end cover and an exhaust plug, and the liquid outlet pipe is connected to the side of the straight cylinder body. The upper end cover is set on the top of the straight barrel body, the piston is set in the straight barrel body, the piston rod is connected with the piston through a fixed bracket, the center of the piston is provided with a first one-way valve that opens upward, the upper end of the piston rod passes through the upper end cover, and the upper end The cover is provided with an exhaust hole, the exhaust plug is arranged on the exhaust hole, and the bottom end of the straight cylinder body is provided with a second one-way valve which can be opened upwards.

Wherein, a lower end cover is provided outside the second one-way valve at the bottom end of the straight cylinder body, and a liquid inlet is opened on the bottom surface or/and the side surface of the lower end cover.

Wherein, the part of the piston rod protruding from the upper end cover is provided with a limiter, and the limiter cooperates with the upper end cover to prevent the piston from contacting the second one-way valve.

Wherein, the lower end of the liquid outlet pipe is provided with a third valve.

Wherein, the liquid outlet pipe is a hose.

Wherein, the first one-way valve includes a valve hole opened in the center of the piston and a valve plate arranged on the valve hole.

Wherein, the second one-way valve includes a valve hole arranged at the bottom end of the straight cylinder body and a valve plate arranged above the valve hole.

Wherein, the top end of the straight cylinder body and the upper end cover are connected by threads, clips or bolts.

Wherein, the bottom end of the straight cylinder body and the lower end cover are connected by threads, clips or bolts.

(3) Beneficial effects

The above-mentioned technical solution of the utility model has the following advantages: in the liquid extractor provided by the utility model, a second one-way valve and a first one-way valve are respectively arranged at the bottom end of the straight cylinder body and the center of the piston, and the upper end cover of the straight cylinder body Open a vent hole and set a vent plug that matches the vent hole. The siphon phenomenon can be quickly established by driving the piston up and down through the pull rod, and the liquid in the liquid storage container is sucked into the straight cylinder and discharged from the side wall of the straight cylinder. The liquid side pipe is discharged, and the siphon phenomenon can be quickly released by opening the exhaust plug. In the above process, it can be realized by pulling the pull rod for many times. The operation is flexible and convenient without limitation. It flows out quickly, and the liquid in the straight body can be discharged through the vent hole, and there will be no residual liquid in the straight body, which will not cause waste of resources.

Description of drawings

Fig. 1 is a schematic structural view of a liquid extractor according to an embodiment of the present invention.

In the figure, 1: straight cylinder body; 2: pull rod; 3: piston; 4: upper end cover; 5: lower end cover; 6: first one-way valve; 7: second one-way valve; 8: fixed bracket; 9: row Air plug; 10: liquid outlet side pipe; 11: third valve; 12: liquid inlet; 13: exhaust hole; 14: limit piece.

Detailed ways

The specific implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

In describing the present invention, it should be understood that the terms "central", "longitudinal", "transverse", "upper", "lower", "vertical", "horizontal", "top", "bottom" The orientation or positional relationship indicated by "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must Having a particular orientation, being constructed and operating in a particular orientation, and therefore not to be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

As shown in Figure 1, a liquid extractor provided by the utility model includes a straight cylinder body 1, a liquid outlet pipe 10, a piston 3, a piston 3 rod, an upper end cover 4 and an exhaust plug 9, and the liquid outlet pipe 10 is connected to On the side of the straight cylinder body 1, the upper end cover 4 is arranged on the top of the straight cylinder body 1, the piston 3 is arranged in the straight cylinder body 1, the outer circumference of the piston 3 is slidingly sealed with the inner wall of the straight cylinder body 1, and the piston 3 rod is connected to the piston 3 through a fixed bracket 8 , the center of the piston 3 is provided with a first one-way valve 6 that opens upwards, the liquid can enter the space above the piston 3 from the lower part of the piston 3 through the first one-way valve 6 and the fixed bracket 8, and the upper end of the rod of the piston 3 passes through the upper end The center of the cover 4, and the piston 3 rod is in sliding and sealing contact with the upper end cover 4, the upper end cover 4 is provided with an exhaust hole 13, the exhaust plug 9 is arranged on the exhaust hole 13, and the bottom end of the straight cylinder body 1 is provided with an upward opening The second one-way valve 7 is used to facilitate the flow of liquid from the second one-way valve 7 into the straight barrel body 1 .

Among them, the sliding seal between the piston 3 and the inner wall of the straight cylinder body 1 can be realized by precision machining of materials or by installing elastic oil-resistant materials on the outer periphery of the piston 3; The inner wall of the through hole of the upper end cover 4 passed through is provided with an elastic oil-resistant material to achieve this. Elastic and oil-resistant materials can choose polytetrafluoroethylene or fluororubber.

In the above technical solution, the exhaust plug 9 is opened, the liquid outlet pipe 10 is closed, the straight cylinder body 1 is placed in the liquid storage container and the bottom end of the straight cylinder body 1 is submerged in the pumped liquid, and the piston 3 is driven to move up and down by the pull rod 2 , with the cooperation of the first one-way valve 6 and the second one-way valve 7, the liquid enters the straight cylinder body 1, and enters above the piston 3 through the first one-way valve 6 in the center of the piston 3, because the first one-way valve The valve 6 and the second one-way valve 7 only allow the liquid to flow from the bottom to the top, so the liquid in the straight cylinder body 1 gradually increases and rises. When it is observed through the vent hole 13 that the liquid level is approaching the upper end cover 4, use the vent plug. 9 Plug the exhaust hole 13, open the liquid outlet pipe 10, and the siphon phenomenon is established, and the liquid can automatically flow into the straight cylinder body 1 from the bottom of the straight cylinder body 1, and flow out from the liquid outlet pipe 10; when it is necessary to completely stop the flow of the liquid When transporting, open the vent plug 9, the siphon phenomenon is removed, a part of the liquid is discharged from the liquid outlet side pipe 10, and the remaining liquid in the straight cylinder body 1 can be discharged through the vent hole 13.

Further, the second one-way valve 7 at the bottom of the straight cylinder body 1 is provided with a lower end cover 5, and the bottom surface or side of the lower end cover 5 is provided with a liquid inlet 12, and the liquid passes through the liquid inlet 12 and then passes through the second one-way valve. The valve 7 enters the straight cylinder body 1, and by setting the lower end cover 5, the adverse effect of liquid disturbance on the working stability of the second one-way valve 7 can be avoided when the liquid directly enters the straight cylinder body 1 through the second one-way valve 7. Certainly, the bottom surface and the side surface of the lower end cover 5 can both be provided with the liquid inlet 12 .

Preferably, the part of the rod of the piston 3 protruding from the upper end cover 4 is provided with a limiter 14. When the piston 3 moves to a position close to the second one-way valve 7 at the lower end of the straight cylinder body 1, the limiter 14 and the upper end cover 4 Cooperate to prevent the piston 3 from touching the second one-way valve 7, so that a certain distance can be maintained between the piston 3 and the lower end cover 5 of the straight cylinder body 1, and the second one-way valve 7 above the lower end cover 5 can be opened and closed freely . For ease of operation, a suitable handle can be set at the end where the pull rod 2 stretches out from the upper end cover 4 .

Further, a third valve 11 is provided at the lower end of the liquid outlet pipe 10 . In this way, the opening and closing of the liquid outlet pipe 10 can be conveniently controlled; generally, the liquid outlet pipe 10 is a hose, and of course it can also be a hard pipe made of a hard material.

Specifically, the first one-way valve 6 includes a valve hole opened in the center of the piston 3 and a valve plate arranged on the valve hole; valve plate above the hole. Wherein, the valve plate is a piece, and the shape is preferably circular, and its side edge is connected to the edge of the valve hole by a rotating shaft. A suitable sealing ring is provided at the position where the valve plate contacts the valve. The valve is preferably a circular hole. The diameter is 5%～45% of the diameter of the straight cylinder body 1.

Specifically, the top end of the straight cylinder body 1 is connected with threads, clips or bolts to the upper end cover 4; the bottom end of the straight cylinder body 1 and the lower end cover 5 is connected with threads, clips or bolts.

In the utility model, the straight cylinder body 1 is a hollow cylinder, and its material generally adopts corrosion-resistant metal, and a handle can also be arranged on the side wall for easy operation; 5% to 45% of the diameter of 1, the inner circle of the piston 3 is a valve; the form of the fixed bracket 8 can be set arbitrarily, which can ensure that the first one-way valve 6 can be opened and closed freely, and the plane of the piston 3 is perpendicular to the side of the straight cylinder body 1. , The connection between the fixed bracket 8 and the pull rod 2 is located on the central axis of the straight cylinder body 1, and the connection between the fixed bracket 8 and the piston 3 is located on the concentric circle of the liquid outlet.

The method of use of the liquid extractor of the present utility model is as follows:

(1) Open the exhaust plug 9, close the third valve 11, place the straight cylinder body 1 in the liquid storage container and ensure that the liquid inlet 12 on the lower end cover 5 at the bottom of the straight cylinder body 1 is submerged in the liquid to be pumped;

(2) The piston 3 is driven to move up and down by the pull rod 2. With the cooperation of the first one-way valve 6 and the second one-way valve 7, the liquid enters the straight cylinder body 1 and the liquid outlet pipe 10, and the straight cylinder body 1 and the liquid outlet The air in the side pipe 10 is exhausted from the exhaust hole 13. When it is observed from the exhaust hole 13 that the liquid level is approaching the upper end cover 4, the exhaust plug 9 is inserted into the exhaust hole 13, and the third valve 11 is opened to realize the siphon phenomenon. Establish;

(3) After the siphon phenomenon is established, stop pulling the pull rod 2, and the liquid in the liquid storage container enters the straight cylinder body 1 through the liquid inlet 12, the second one-way valve 7 and the first one-way valve 6, and then flows through the liquid outlet side pipe. 10 Automatic outflow to realize siphon pumping;

(4) When the extracted liquid reaches the required amount or the delivery needs to be suspended, close the third valve 11 of the liquid outlet pipe 10. When it needs to be delivered again, only need to open the third valve 11 of the liquid outlet pipe 10 to start again After conveying, after repeated use, after the siphon phenomenon is released, the siphon phenomenon can be established again by pulling the pull rod 2;

(5) When the conveying needs to be stopped completely, open the exhaust plug 9 to allow air to enter the straight cylinder body 1 to remove the siphon phenomenon and completely stop conveying, and the residual liquid in the straight cylinder body 1 can be poured out through the vent hole 13.

In summary, in the liquid extractor provided by the utility model, the second one-way valve 7 and the first one-way valve 6 are arranged on the lower end of the straight cylinder body 1 and the piston 3 respectively, and the upper end cover 4 of the straight cylinder body 1 is opened. The exhaust hole 13 and the exhaust plug 9 matched with the exhaust hole 13 can quickly establish a siphon phenomenon by driving the piston 3 to move up and down through the pull rod 2, and the liquid in the liquid storage container is sucked into the straight cylinder and discharged from the side of the straight cylinder. The outlet side pipe 10 on the wall is discharged, and the siphon phenomenon can be quickly removed by opening the exhaust plug 9. In the above process, it can be realized by pulling the pull rod 2 several times. The operation is flexible and convenient. After the siphon phenomenon is quickly removed, the outlet side pipe The liquid in 10 can flow out quickly, and the liquid in the straight cylinder body 1 can be discharged through the exhaust hole 13, and there will be no residual liquid in the straight cylinder body 1, so as not to cause waste of resources, and the liquid extractor of the utility model is simple in structure, Save time and effort and high efficiency.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and modifications can also be made. And modification should also be regarded as the protection scope of the present utility model.

Claims (9)

1. a liquid extractor, it is characterized in that: it comprises straight tube body, fluid side pipe, piston, piston rod, upper end cap and venting plug, fluid side pipe is connected to the side of straight tube body, upper end cap is arranged on the top of straight tube body, piston is arranged in straight tube body, piston rod is connected with piston by a fixed support, the center of piston is provided with the first one-way valve upwardly opened, the upper end of piston rod is through upper end cap, upper end cap offers exhaust port, venting plug is arranged on exhaust port, and the bottom of straight tube body is provided with and upwardly opens the second one-way valve.

2. liquid extractor according to claim 1, is characterized in that: the second one-way valve of described straight tube body bottom is outside equipped with lower end cap, and the bottom surface of lower end cap is or/and side opening is provided with liquor inlet.

3. liquid extractor according to claim 1, is characterized in that: the part that described piston rod stretches out upper end cap is provided with bounding means, and this bounding means matches with upper end cap, to prevent piston contact to the second one-way valve.

4. liquid extractor according to claim 1, is characterized in that: the lower end of described fluid side pipe is provided with the 3rd valve.

5. liquid extractor according to claim 4, is characterized in that: described fluid side pipe is flexible pipe.

6. liquid extractor according to claim 1, is characterized in that: described first one-way valve comprises the valve opening being opened in piston centre and the valve block be arranged on above valve opening.

7. liquid extractor according to claim 1, is characterized in that: described second one-way valve comprises the valve opening being arranged on straight tube body bottom and the valve block be arranged on above valve opening.

8. liquid extractor according to claim 1, is characterized in that: described straight tube body top is threaded with between upper end cap, clamping or bolt are connected.

9. liquid extractor according to claim 2, is characterized in that: described straight tube body bottom is threaded with between lower end cap, clamping or bolt are connected.