Liquid metering device

Abstract

A liquid metering device relates to the technical field of liquid metering and comprises a supporting rod arranged in a vertical lifting mode, a metering pipe is fixedly connected to the supporting rod in a vertical penetrating mode, a guide column is fixedly connected to the lower end of the metering pipe in a vertical mode, a floating plate is slidably arranged on the guide column in the vertical direction, and a positioning sealing cylinder is slidably connected to the floating plate in the vertical direction. A liquid outlet hole is formed in the periphery of the outer wall, close to the lower end, of the metering pipe, and when the upper end of the positioning sealing cylinder abuts against the supporting rod, the liquid outlet hole is closed. According to the filling device, the problem that the filling device cannot guarantee the metering accuracy of the liquid water-retaining agents with different purposes due to different consistencies of the liquid water-retaining agents with different purposes when the filling device is used for filling the liquid water-retaining agents in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid metering technical field, concretely relates to liquid metering device. BACKGROUND

[0002] Liquid water-retaining agent is a kind of chemical product with special function, has wide application in agriculture, horticulture, construction, medicine and other fields, plays an important role in improving soil moisture condition, improving product performance and the like.

[0003] The prior art discloses a patent with the announcement number CN212651740U, the scheme includes rack, a plurality of weighing modules are arranged on the rack, a plurality of weighing modules are arranged on the weighing module, the metering barrel is communicated with the feed inlet of the mixing barrel through the first pipeline, and the first pipeline is provided with the first discharge valve;Mixing barrel is provided with stirrer, and the rack is further provided with the blowing device for blowing in the mixing barrel.Increased on the basis of original metering and weighing, the stirring function is increased, and the blowing device is used to blow in the mixing barrel during stirring, so that the material mixing in the mixing barrel is more balanced.

[0004] The existing device gradually exposes the deficiencies of the prior art with use, mainly in the following aspects:

[0005] First, the existing filling device fills liquid water-retaining agent, because the consistency of liquid water-retaining agent for different purposes is different, so that the filling device cannot guarantee the metering accuracy of liquid water-retaining agent for different purposes.

[0006] Second, the existing metering device is judged by judging the flow rate of liquid water-retaining agent in unit time to judge the metering value, and the metering consistency of the same batch of liquid water-retaining agent during filling cannot be guaranteed.

[0007] From the above, it is obvious that the prior art has inconvenience and defects in actual use, so it is necessary to improve. Utility model content

[0008] In view of the defects in the prior art, the liquid metering device is provided to solve the problem that the filling device in the prior art cannot guarantee the metering accuracy of liquid water-retaining agent for different purposes because the consistency of liquid water-retaining agent for different purposes is different when filling liquid water-retaining agent.

[0009] To achieve the above object, the utility model provides the following technical scheme:

[0010] The utility model provides a liquid metering device, including the support pole who sets up along vertical elevation, the support pole is vertically through fixed with the metering pipe on the vertical, the lower end of metering pipe is vertically fixed with the guide post, the floating plate is vertically slidably arranged on the guide post, the fixed sealing cylinder is vertically slidably connected on the floating plate, the outer wall of metering pipe is surrounded with the liquid outlet hole near the lower end, the upper end of fixed sealing cylinder is closed when the liquid outlet hole with the support pole.

[0011] As an optimized scheme, the upper end of the fixed sealing cylinder is fixed with a bottom magnetic ring, and the lower surface of the support rod is fixed with a top magnetic ring matched with the bottom magnetic ring.

[0012] As an optimized scheme, the inner wall of the fixed sealing cylinder is fixed with a rubber sealing sleeve, and the inner wall of the rubber sealing sleeve is in frictional contact with the outer wall of the guide post or the metering pipe.

[0013] As an optimized scheme, the upper end of the floating plate is fixed with a guide sleeve sleeved on the guide post, the outer wall of the guide sleeve is provided with external threads, and the inner wall of the fixed sealing cylinder is provided with internal threads matched with the external threads.

[0014] As an optimized scheme, the guide sleeve is further threadedly connected with a locking ring, and the upper end of the locking ring abuts against the lower end of the fixed sealing cylinder.

[0015] As an optimized scheme, the upper end of the support rod is fixed with a pneumatic cylinder, the top magnetic ring is coaxially provided with a relief hole on the support rod to avoid the extension end of the pneumatic cylinder, and the extension end of the pneumatic cylinder abuts against the upper surface of the bottom magnetic ring when the pneumatic cylinder extends.

[0016] As an optimized scheme, the support rod is threadedly connected with a lead screw arranged vertically, one side of the lead screw is provided with a guide post in parallel, and the support rod is provided with a guide hole matched with the guide post.

[0017] As an optimized scheme, the lead screw and the guide post are connected to end seats at two ends respectively, and a connecting frame is fixed between the two end seats.

[0018] As an optimized scheme, the upper end seat is fixed with a driving machine for driving the lead screw to rotate.

[0019] As an optimized scheme, the upper end seat is horizontally fixed with an extension rod, a liquid inlet pipe is fixed on the extension rod, and a corrugated expansion pipe is fixed between the lower end of the liquid inlet pipe and the upper end of the metering pipe.

[0020] As an optimized scheme, the lower end of the guide column is fixedly connected with a limiting plate, and a sliding hole matched with the guide column is formed in the floating plate.

[0021] Compared with the prior art, the utility model has the advantages of:

[0022] The supporting rod is driven to ascend and descend by the lead screw, the guide column and the floating plate are extended into the container, the floating plate is located at the bottom of the guide column under the action of gravity, the position of the liquid storage hole in the measuring pipe is adjusted by driving the lifting rod to ascend and descend by the lead screw, the liquid water-retaining agent is supplied by connecting the liquid inlet pipe with the liquid source, the liquid water-retaining agent enters the measuring pipe along the corrugated expansion pipe and enters the container through the liquid outlet hole, the floating plate is lifted along with the rising of the liquid level in the container, the positioning sealing cylinder is lifted along with the floating plate, the rubber sealing sleeve is used to close the liquid outlet hole when the upper end of the positioning sealing cylinder abuts against the supporting rod, automatic liquid inlet closing is realized, the accurate measurement can be ensured, and the measurement is not affected by the consistency, filling speed and filling time of the liquid water-retaining agent;

[0023] When the same batch of containers are filled in sequence, the measuring tank only needs to be driven to descend to the same height by the lead screw, the floating plate is lifted by the liquid level, accurate measurement of the liquid filling amount is realized, and the measurement consistency of the same batch of liquid water-retaining agent is ensured.

[0024] The height difference between the positioning sealing cylinder and the guide sleeve is adjusted, the filling amount is positioned and adjusted by adjusting the height of the positioning sealing cylinder under the premise that the height of the liquid outlet hole is constant, and the use range of the measurement is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed in the specific embodiment or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally indicated by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0026] Figure 1 It is a structural schematic view of the utility model.

[0027] In the drawings: 1-supporting rod, 2-measuring pipe, 3-guide column, 4-floating plate, 5-positioning sealing cylinder; 6-guide sleeve; 7-locking ring; 8-rubber sealing sleeve; 9-bottom magnetic attraction ring; 10-top magnetic attraction ring; 11-liquid outlet hole; 12-cylinder; 13-avoiding hole; 14-corrugated expansion pipe; 15-extended rod; 16-liquid inlet pipe; 17-lead screw; 18-guide column; 19-end seat; 20-driving machine; 21-connecting frame. DETAILED DESCRIPTION

[0028] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0029] like Figure 1 As shown, the liquid metering device includes a support rod 1 that is vertically raised and lowered. A metering tube 2 is vertically fixed through the support rod 1. A guide column is vertically fixed to the lower end of the metering tube 2. A float plate 4 is slidably mounted on the guide column along the vertical direction. A positioning sealing cylinder 5 is slidably connected to the float plate 4 along the vertical direction. An outlet hole 11 is provided on the outer wall of the metering tube 2 near the lower end. When the upper end of the positioning sealing cylinder 5 abuts against the support rod 1, the outlet hole 11 is sealed.

[0030] A bottom magnetic ring 9 is fixedly connected to the upper end of the positioning sealing cylinder 5, and a top magnetic ring 10 that matches the bottom magnetic ring 9 is fixedly connected to the lower surface of the support rod 1.

[0031] A rubber sealing sleeve 8 is fixedly connected to the inner wall of the positioning sealing cylinder 5, and the inner wall of the rubber sealing sleeve 8 is in frictional contact with the outer wall of the guide column or the metering tube 2.

[0032] The upper end of the floating plate 4 is fixedly connected to a guide sleeve 6 that is slidably fitted onto the guide post. The outer wall of the guide sleeve 6 is provided with external threads, and the inner wall of the positioning sealing cylinder 5 is provided with internal threads that match the external threads.

[0033] The guide sleeve 6 is also threaded with a locking ring 7, the upper end of which abuts against the lower end of the positioning sealing cylinder 5.

[0034] A cylinder 12 is fixed to the upper end of the support rod 1. The top magnetic ring 10 and the support rod 1 are coaxially provided with a clearance hole 13 to avoid the telescopic end of the cylinder 12. When the telescopic end of the cylinder 12 extends, it abuts against the upper surface of the bottom magnetic ring 9.

[0035] The system utilizes the attraction between the top magnetic ring 10 and the bottom magnetic ring 9 to ensure the sealing of the positioning sealing cylinder 5 to the liquid outlet 11. After filling is completed, when filling the next container, the telescopic end of the cylinder 12 abuts against the upper surface of the bottom magnetic ring 9, causing the bottom magnetic ring 9 to descend, thereby separating the top magnetic ring 10 from the bottom magnetic ring 9.

[0036] The support rod 1 is threaded to the vertically arranged lead screw 17. Guide posts are arranged side by side on one side of the lead screw 17, and guide holes matching the guide posts are opened on the support rod 1.

[0037] The two ends of the lead screw 17 and the guide column, which face the same direction, are respectively connected to the end seats 19, and a connecting bracket 21 is fixed between the two end seats 19.

[0038] The driving machine 20 for driving the driving screw 17 to rotate is fixed on the upper end seat 19.

[0039] The extension rod 15 is horizontally fixed on the upper end seat 19, and the liquid inlet pipe 16 is fixed on the extension rod 15.

[0040] The lower end of the guide column is fixed with a limiting plate, and the floating plate 4 is provided with a sliding hole matched with the guide column.

[0041] The working principle of the device is as follows:

[0042] The supporting rod 1 can be lifted by the screw 17 to realize the extension of the guide column and the floating plate 4 into the container.

[0043] When several containers of the same batch are sequentially filled, the measuring tank only needs to be lowered to the same height by the screw 17, and the liquid level is controlled to rise to realize automatic precise measurement of the liquid filling amount and ensure the measurement consistency of the liquid water-retaining agent filling of the same batch.

[0044] By adjusting the height difference between the positioning sealing cylinder 5 and the guide sleeve 6, the filling amount can be positioned and adjusted under the premise that the height of the liquid outlet hole 11 is constant, thereby improving the use range of the measurement.

[0045] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. Liquid metering device, characterized in that: The utility model provides a kind of liquid level meter, including the support pole (1) of vertical lifting arrangement, the metering pipe (2) is vertically fixed on the support pole (1), the lower end of the metering pipe (2) is vertically fixed with guide column, the float plate (4) is slidably arranged on the guide column, the positioning sealing cylinder (5) is slidably connected on the float plate (4), the outer wall of the metering pipe (2) is surrounded with liquid outlet hole (11) near lower end, the upper end of the positioning sealing cylinder (5) is closed when the liquid outlet hole (11) is closed when the upper end of the positioning sealing cylinder (5) is abutted with the support pole (1).

2. The liquid metering device of claim 1, wherein: The bottom magnetic attraction ring (9) is fixedly connected to the upper end of the positioning sealing cylinder (5), and the top magnetic attraction ring (10) matched with the bottom magnetic attraction ring (9) is fixedly connected to the lower surface of the support pole (1).

3. The liquid metering device of claim 2, wherein: The rubber sealing sleeve (8) is fixedly connected to the inner wall of the positioning sealing cylinder (5), and the inner wall of the rubber sealing sleeve (8) is in frictional contact with the outer wall of the guide column or the metering pipe (2).

4. The liquid metering device of claim 3, wherein: The guide sleeve (6) is fixedly connected to the upper end of the float plate (4) and sleeved on the guide column, the outer wall of the guide sleeve (6) is provided with external threads, and the inner wall of the positioning sealing cylinder (5) is provided with internal threads matched with the external threads.

5. The liquid metering device of claim 4, wherein: The locking ring (7) is threadedly connected to the guide sleeve (6), and the upper end of the locking ring (7) is abutted with the lower end of the positioning sealing cylinder (5).

6. The liquid metering device of claim 5, wherein: The air cylinder (12) is fixedly connected to the upper end of the support pole (1), the top magnetic attraction ring (10) is coaxially provided with the avoidance hole (13) avoiding the telescopic end of the air cylinder (12) in the support pole (1), and the telescopic end of the air cylinder (12) is abutted with the upper surface of the bottom magnetic attraction ring (9) when the telescopic end of the air cylinder (12) is extended.

7. The liquid metering device of claim 6, wherein: The support pole (1) is threadedly connected to the vertically arranged lead screw (17), the guide column is arranged on one side of the lead screw (17), and the guide hole matched with the guide column is arranged on the support pole (1).

8. The liquid metering device of claim 7, wherein: The lead screw (17) and the guide column are connected to the end seat (19) at the same two ends, and the connecting frame (21) is fixedly connected between the two end seats (19).

9. The liquid metering device of claim 8, wherein: The driving machine (20) driving the lead screw (17) to rotate is fixedly connected to the upper end seat (19).

10. The liquid metering device of claim 9, wherein: The extension rod (15) is horizontally fixedly connected to the upper end seat (19), the inlet pipe (16) is fixedly connected to the extension rod (15), and the corrugated telescopic pipe (14) is fixedly connected between the lower end of the inlet pipe (16) and the upper end of the metering pipe (2).

Images