Liquid feeding device

Abstract

The liquid material taking device of the present invention comprises a material taking cavity, a lifting head arranged in the material taking cavity, a connecting cone sleeve connected to the material taking cavity, and a plug arranged in the connecting cone sleeve; the lifting head can rotatably block the material taking cavity, and the plug can selectively block the connecting cone sleeve, wherein the plug is connected to a first push rod partially extending out of the connecting cone sleeve, and a second push rod arranged toward the lifting head, the first push rod can push the plug to release the blocking of the connecting cone sleeve, and at the same time, the second push rod pushes the lifting head and releases the lifting head from blocking the material taking cavity, so that the connecting cone sleeve is connected to the material taking cavity. The present invention has a simple structure and is easy to operate, and can realize the extraction of liquid medium at a certain height.

Description

Technical Field

[0001] The invention belongs to the technical field related to liquid sampling, and in particular relates to a liquid sampling device. Background Art

[0002] The liquid sampling device is used to extract liquid from a container for use as a sample. However, the existing liquid sampling devices are unable to determine the height of a container containing liquid, or sample a layered mixed liquid, and cannot meet the corresponding liquid sampling needs of enterprises. Summary of the invention

[0003] Based on this, it is necessary to provide a liquid material taking device to address the technical problems existing in the prior art.

[0004] Specifically, a liquid material taking device comprises a material taking cavity, a lifting head arranged in the material taking cavity, a connecting cone sleeve connected to the material taking cavity, and a plug arranged in the connecting cone sleeve; a first through hole, a second through hole and a third through hole which are interconnected are sequentially opened in the material taking cavity, the lifting head can block the third through hole downwardly and the first through hole upwardly, wherein the aperture of the second through hole is larger than the outer diameter of the lifting head, so that the liquid medium in the third through hole can flow to the first through hole via the second through hole; a first push rod is connected to one end of the plug, and a second push rod is connected to the other end, the first push rod partially extends out of the connecting cone sleeve, wherein a flow channel is formed between the part of the first push rod arranged in the connecting cone sleeve and the connecting cone sleeve, the second push rod is arranged toward the lifting head, and the first push rod can push the plug to release the blockage of the connecting cone sleeve, and the lifting head is pushed to the position where the second through hole is located by the second push rod on the plug, so that the connecting cone sleeve is connected to the material taking cavity.

[0005] As a preferred solution of the present invention, a limiting block is fixedly connected to the portion of the first push rod extending out of the connecting cone sleeve, and the limiting block can abut against the connecting cone sleeve to limit the first push rod from pushing the plug upward.

[0006] As a preferred embodiment of the present invention, the connecting cone sleeve is provided with a groove connected to the flow channel at one end portion facing the limit block, the groove and the limit block are staggered, and the liquid medium can enter the connecting cone sleeve through the groove and the flow channel.

[0007] As a preferred solution of the present invention, the first push rod and the plug are connected and fixed by means of threads.

[0008] As a preferred solution of the present invention, the second push rod is fixed to the plug, and the second push rod is coaxially arranged with the first push rod.

[0009] As a preferred solution of the present invention, a pull rope is fixedly connected to the lifting head, and the pull rope can drive the lifting head to move upward in the first through hole.

[0010] As a preferred solution of the present invention, a liquid outlet pipe is connected to and communicated with the material taking cavity, and an interface where the liquid outlet pipe communicates with the material taking cavity is arranged at the position where the first through hole is located.

[0011] As a preferred solution of the present invention, the material taking cavity cooperates with the connecting cone sleeve to form a containing cavity, and the containing cavity is respectively communicated with the flow channel and the third through hole.

[0012] As a preferred solution of the present invention, the material taking cavity and the connecting cone sleeve are fixedly connected by threads.

[0013] As a preferred embodiment of the present invention, a conical surface seal is formed between the plug and the connecting cone sleeve; and / or a conical surface seal is formed between the lifting head and the third through hole of the material taking cavity.

[0014] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0015] The liquid material taking device provided by the present invention utilizes the first push rod to push the plug, so that the plug can release the blockage of the connecting cone sleeve, and then utilizes the second push rod on the plug to push the lifting head to release the lifting head from releasing the blockage of the material taking cavity, so that the connecting cone sleeve is connected to the material taking cavity, and then utilizes the lifting head to discharge the liquid medium introduced into the material taking cavity when it rises, thereby achieving the extraction of the liquid medium at a certain height in the container, thereby meeting the use needs of the enterprise; at the same time, the liquid sampling device has a simple structure and operation direction, which further meets the use needs of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a liquid material taking device provided in one embodiment of the present invention.

[0017] Among them, 10, material taking cavity; 11, first through hole; 12, second through hole; 13, third through hole; 14, liquid outlet pipe; 20, lifting head; 21, pull rope; 30, connecting cone sleeve; 31, groove; 40, plug; 101, first push rod; 102, second push rod; 103, limit block; 200, flow channel; 201, cavity. Specific embodiments

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0020] See also Figure 1 A liquid material taking device provided in one embodiment of the present invention includes a material taking cavity 10, a lifting head 20 arranged in the material taking cavity 10, a connecting cone sleeve 30 connected to the material taking cavity 10, and a plug 40 arranged in the connecting cone sleeve 30.

[0021] Among them, the plug 40 can selectively block the connecting cone sleeve 30, and when the plug 40 blocks the connecting cone sleeve 30, it can prevent the liquid medium outside the connecting cone sleeve 30 from entering the connecting cone sleeve 30; the lifting head 20 can also selectively block the material collection cavity 10, and when the lifting head 20 blocks the material collection cavity 10, it can prevent the liquid medium introduced into the connecting cone sleeve 30 from entering the material collection cavity 10, and at the same time, when the lifting head 20 moves upward in the material collection cavity 10, it can push the liquid medium introduced into the material collection cavity 10 to move upward, and can flow out of the material collection cavity 10, thereby achieving the sampling function of the liquid material collection device.

[0022] In this embodiment, the first through hole 11, the second through hole 12 and the third through hole 13 which are interconnected are sequentially opened in the material taking cavity 10, and the lifting head 20 can block the third through hole 13 downwards and achieve the blocking of the material taking cavity 10. Specifically, the lifting head 20 of this embodiment and the material taking cavity 10 are sealed by a conical surface. That is to say, the hole wall of the third through hole 13 on the material taking cavity 10 of this embodiment is set as a conical surface structure, and the lifting head 20 is provided with a conical surface matching the hole wall of the third through hole 13, and the lifting head 20 is attached to the hole wall of the third through hole 13 and finally achieves the blocking of the third through hole 13.

[0023] Similarly, a conical surface seal is also adopted between the plug 40 and the connecting cone sleeve 30 in this embodiment.

[0024] Among them, the aperture of the second through hole 12 is larger than the outer diameter of the lifting head 20, so that the liquid medium in the third through hole 13 can flow to the first through hole 11 through the second through hole 12, so that when the lifting head 20 is at the position where the second through hole 12 is located in the material picking cavity 10, the first through hole 11, the second through hole 12 and the third through hole 13 of the material picking cavity 10 are connected to each other.

[0025] In addition, it should be noted that the aperture of the first through hole 11 of the present embodiment is equal to the outer diameter of the lifting head 20, so that when the lifting head 20 moves downward in the first through hole 11 of the material collection cavity 10, the lifting head 20 can push the liquid medium in the first through hole 11 to move with the rise of the lifting head 20, and finally achieve the purpose of sampling. It should be noted that the lifting head 20 is placed in the first through hole 11 of the material collection cavity 10, which is not limited to sealing the hole wall of the first through hole 11. For those skilled in the art, a partial gap can be left between the lifting head 20 and the hole wall of the first through hole 11, as long as it satisfies that when the lifting head 20 rises in the first through hole 11, it can partially push the liquid medium in the first through hole 11 out of the material collection cavity 10.

[0026] Specifically, a pull rope 21 is fixedly connected to the lifting head 20 of the present embodiment, and the pull rope 21 can drive the lifting head 20 to move upward in the first through hole 11, that is, the pull rope 21 can pull the lifting head 20 to move upward. It should be noted that part of the pull rope 21 extends out of the material taking cavity 10, and the part of the pull rope 21 disposed in the material taking cavity 10 is assembled and sealed with the material taking cavity 10, and a sealing ring (not shown) can be used. Of course, the driving of the lifting head 20 to move in the first through hole 11 is not limited to that shown in the figure. For those skilled in the art, a screw rod screwed to the material taking cavity 10 can be used to realize the driving of the lifting head 20.

[0027] Moreover, the material collection cavity 10 of the present embodiment is connected and communicated with a liquid outlet pipe 14, and the interface between the liquid outlet pipe 14 and the material collection cavity 10 is arranged at the position where the first through hole 11 is located, so that when the liquid sampling device is working, the liquid medium on the material collection cavity 10 can be discharged by the liquid outlet pipe 14, so as to facilitate the sample collection of the liquid material collection device.

[0028] In this embodiment, one end of the plug 40 is connected to the first push rod 101, and the other end is connected to the second push rod 102, and the first push rod 101 partially extends out of the connecting cone sleeve 30, wherein a flow channel 200 is formed between the part of the first push rod 101 arranged in the connecting cone sleeve 30 and the connecting cone sleeve 30, and the second push rod 102 is arranged toward the lifting head 20, and the first push rod 101 can push the plug 40 to release the blockage of the connecting cone sleeve 30, and use the second push rod 102 on the plug 40 to push the lifting head 20 to the position of the second through hole 12, so that the connecting cone sleeve 30 is connected to the material taking cavity 10. That is to say, when the first push rod 101 pushes the plug 40 to move upward in the connecting cone sleeve 30, the second push rod 102 on the plug 40 follows the movement of the plug 40, and the second push rod 102 is used to push the lifting head 20, so as to achieve conduction between the connecting cone sleeve 30 and the material taking cavity 10. That is, when the first push rod 101 does not push the plug 40, the connecting cone sleeve 30 and the material taking cavity 10 are both in a closed state, so that when the liquid sampling device is used, the part of the connecting cone sleeve 30 for introducing the liquid medium can smoothly enter the liquid medium to be sampled, and when the liquid sampling device is extracted as a whole, that is, the first push rod 101 loses its upward force, the plug 40 and the first push rod 101 can re-seal the connecting cone sleeve 30 under the action of gravity to prevent the external liquid medium from entering the connecting cone sleeve 30 again, thereby ensuring the accuracy of liquid sampling when the liquid sampling device is working.

[0029] It can be understood that when the liquid sampling device of this embodiment is used, the first push rod 101 can be against the bottom of the container to be sampled, and the first push rod 101 can push the plug 40 upward by using the action force and the reaction force. In other words, the liquid sampling device of this embodiment can select first push rods 101 of different lengths according to the needs of use to achieve sampling of liquid media at different heights. In this embodiment, the first push rod 101 is connected and fixed to the plug 40 in a threaded manner to facilitate the replacement of the first push rod 101 on the plug 40.

[0030] In addition, it should be noted that the second push rod 102 is fixed to the plug 40, so that the plug 40 is pushed by the first push rod 101 and can drive the second push rod 102 to move upward and act on the lifting head 20. The second push rod 102 is coaxially arranged with the first push rod 101, and can be specifically arranged at the position where the center of gravity of the plug 40 is located, so as to provide stability for the first push rod 101 to drive the plug 40, and ensure that the second push rod 102 can act on the lifting head 20 when it moves upward.

[0031] In this embodiment, the first push rod 101 is fixedly connected to a limit block 103 on the portion extending out of the connecting cone sleeve 30, and the limit block 103 can abut against the connecting cone sleeve 30 to limit the first push rod 101 from pushing the plug 40 upward. In other words, after the first push rod 101 of this embodiment pushes the plug 40 upward in the connecting cone sleeve 30 for a certain distance, it can be limited by the abutment between the upper limit block 103 of the first push rod 101 and the connecting cone sleeve 30, that is, the limit block 103 of this embodiment can be used to limit the distance of movement of the first push rod 101 in the connecting cone sleeve 30, and combined with the length of the first push rod 101 extending out of the connecting cone sleeve 30, it can achieve sampling of the liquid medium at a certain height.

[0032] Furthermore, the connecting cone sleeve 30 is provided with a groove 31 connected to the flow channel 200 at one end portion facing the stopper 103. The groove 31 and the stopper 103 are staggered, preferably arranged at 90°, and the liquid medium can enter the connecting cone sleeve 30 through the groove 31 and the flow channel 200. In other words, the groove 31 of the present embodiment is used as an inlet for the liquid medium to flow into the connecting cone sleeve 30, so that the liquid medium can enter the connecting cone sleeve 30.

[0033] In addition, it should be noted that the material taking cavity 10 of this embodiment cooperates with the connecting cone sleeve 30 to form a cavity 201, and the cavity 201 is respectively connected with the flow channel 200 and the third through hole 13, so that the liquid medium introduced from the flow channel 200 can flow to the third through hole 13 of the material taking cavity 10 through the cavity 201. In this embodiment, the material taking cavity 10 and the connecting cone sleeve 30 are fixedly connected in a threaded manner.

[0034] In summary, the liquid material taking device provided by the present invention utilizes the first push rod to push the plug, so that the plug can release the blockage of the connecting cone sleeve, and then utilizes the second push rod on the plug to push the lifting head to release the lifting head from releasing the blockage of the material taking cavity, so that the connecting cone sleeve is connected to the material taking cavity, and then utilizes the lifting head to discharge the liquid medium introduced into the material taking cavity when it rises, thereby achieving the extraction of the liquid medium at a certain height in the container, thereby meeting the use needs of the enterprise; at the same time, the liquid sampling device has a simple structure and operation direction, which further meets the use needs of the enterprise.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A liquid material taking device, characterized in that: The invention comprises a material taking cavity, a lifting head arranged in the material taking cavity, a connecting cone sleeve connected to the material taking cavity, and a plug arranged in the connecting cone sleeve; a first through hole, a second through hole and a third through hole which are interconnected are sequentially opened in the material taking cavity, the lifting head can block the third through hole downwardly and the first through hole upwardly, wherein the aperture of the second through hole is larger than the outer diameter of the lifting head, so that the liquid medium in the third through hole can flow to the first through hole via the second through hole; a first push rod is connected to one end of the plug, and a second push rod is connected to the other end, the first push rod partially protrudes out of the connecting cone sleeve, wherein a flow channel is formed between the part of the first push rod arranged in the connecting cone sleeve and the connecting cone sleeve, the second push rod is arranged toward the lifting head, and the first push rod can push the plug to release the blockage of the connecting cone sleeve, and the lifting head is pushed to the position where the second through hole is located by the second push rod on the plug, so that the connecting cone sleeve is connected to the material taking cavity; A limiting block is fixedly connected to the portion of the first push rod extending out of the connecting cone sleeve, and the limiting block can abut against the connecting cone sleeve to limit the first push rod from pushing the plug upward; The connecting cone sleeve is provided with a groove connected to the flow channel at one end portion facing the limit block, the groove and the limit block are staggered, and the liquid medium can enter the connecting cone sleeve through the groove and the flow channel; The first push rod is connected and fixed to the plug in a threaded manner.

2. The liquid material taking device according to claim 1, characterized in that: The second push rod is fixed to the plug, and the second push rod is coaxially arranged with the first push rod.

3. The liquid material taking device according to claim 1, characterized in that: A pull rope is fixedly connected to the lifting head, and the pull rope can drive the lifting head to move upward in the first through hole.

4. The liquid material taking device according to claim 3, characterized in that: The material taking cavity is connected and communicated with a liquid outlet pipe, and an interface where the liquid outlet pipe communicates with the material taking cavity is arranged at the position where the first through hole is located.

5. The liquid material taking device according to claim 1, characterized in that: The material taking cavity cooperates with the connecting cone sleeve to form a containing cavity, and the containing cavity is communicated with the flow channel and the third through hole respectively.

6. The liquid material taking device according to claim 5, characterized in that: The material taking cavity and the connecting cone sleeve are fixedly connected in a threaded manner.

7. The liquid material taking device according to claim 1, characterized in that: The plug and the connecting cone sleeve are sealed by a conical surface; and / or the lifting head and the third through hole of the material taking cavity are sealed by a conical surface.

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