Quantitative formaldehyde pouring device

Abstract

The utility model discloses a quantitative formaldehyde pouring device which comprises a liquid storage tank, a tank cover, a rotating mechanism, a liquid outlet valve and a base. The bottom of a liquid storage cavity of the liquid storage tank is provided with a zero point position and a plurality of liquid quantitative channels with different capacities, and the liquid quantitative channels are arranged in a circumferential mode and are different in inner diameter. The rotating mechanism comprises a worm gear, a worm and a knob handle, a sealing washer at the bottom of the worm gear is provided with a notch, the surface of the notch and the inner wall of the liquid storage tank are coated with PVDF coatings, and the surface of the liquid storage tank is provided with digital marks corresponding to the quantitative channels. The liquid outlet valves are in one-to-one correspondence with liquid outlets of the quantitative channels, and liquid dropping grooves are formed in the surface of the base. When in use, the knob handle is rotated, the worm wheel rotates to align the notch with the corresponding quantitative channel to discharge liquid, and the liquid outlet valve is opened to discharge quantitative liquid after returning. The device realizes quantification through a mechanical structure, reduces the cost, and is convenient to operate, accurate in quantification and high in corrosion resistance.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid quantitative distribution devices, specifically a formaldehyde quantitative pouring device. Background Technology

[0002] Formaldehyde is a commonly used reagent in chemical experiments and materials processing, and its quantitative dispensing is frequently performed. Currently, most formaldehyde dispensing devices on the market rely on sensors (such as level sensors and flow sensors) for quantitative control. However, these sensor-dependent dispensing devices have significant shortcomings. On the one hand, the purchase cost of sensors is high, increasing the overall cost of the device; on the other hand, after prolonged contact with chemical reagents such as formaldehyde, sensors are prone to decreased sensitivity and increased measurement errors, leading to reduced quantitative accuracy, and the need for repair and replacement of sensors further increases operating costs. In addition, some devices have complex structures and cumbersome operations, which is not conducive to improving work efficiency. In view of the problems of high cost and susceptibility to accuracy in the existing technology, this utility model proposes a new formaldehyde dispensing device. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] Therefore, the purpose of this utility model is to provide a formaldehyde quantitative pouring device that achieves quantitative pouring of formaldehyde through mechanical structure design, replacing the traditional sensor-dependent quantitative method, thereby reducing costs while ensuring quantitative accuracy and ease of operation.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0006] A formaldehyde metering pouring device, comprising:

[0007] A liquid storage tank having a liquid storage cavity with a top opening, the bottom of which has a zero point and multiple liquid metering channels with different capacities;

[0008] A lid, detachably mounted on top of the storage tank;

[0009] A rotating mechanism is partially installed inside the liquid storage tank and can rotate to put the liquid in the storage cavity into a liquid metering channel of corresponding capacity.

[0010] Each liquid outlet valve is connected to the outlet of each liquid metering channel to release the liquid from the corresponding liquid metering channel.

[0011] As a preferred embodiment of the formaldehyde quantitative pouring device described in this utility model, the liquid quantitative channels are arranged in a circular pattern, and the inner diameter of each quantitative channel is different to quantitatively dispense different volumes of liquid.

[0012] As a preferred embodiment of the formaldehyde quantitative pouring device described in this utility model, the rotating mechanism includes a worm gear that can rotate along its axis within the liquid storage cavity, a knob handle that meshes with the worm gear and extends through the worm of the liquid storage tank, and is perpendicularly connected to the end of the worm.

[0013] The bottom of the worm gear is provided with a sealing gasket covering the surface of the liquid metering channel, and the sealing gasket has a notch.

[0014] In a preferred embodiment of the formaldehyde quantitative pouring device described in this utility model, the surface of the rotating mechanism and the inner wall of the storage tank are both coated with PVDF coating.

[0015] As a preferred embodiment of the formaldehyde quantitative pouring device described in this utility model, the surface of the liquid storage tank is provided with numerical markings at equal intervals along the outer side of the knob handle, corresponding to each liquid quantitative channel.

[0016] As a preferred embodiment of the formaldehyde quantitative pouring device described in this utility model, it further includes a base, there is a space between the base and the liquid outlet valve, and a drip groove is formed on the surface of the base.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. It abandons the traditional sensor-based quantitative method and adopts a purely mechanical structure (such as worm gear, worm, metering channel, etc.) to achieve liquid metering, which greatly reduces the manufacturing cost of the device and reduces the maintenance and replacement costs caused by sensor failure.

[0019] 2. By arranging liquid metering channels of different inner diameters in a circular pattern and combining them with the precise control of the rotating mechanism, accurate metering of formaldehyde solutions of different volumes can be achieved, avoiding the problem of sensor accuracy degradation due to long-term use.

[0020] 3. Operators only need to turn the knob handle to introduce liquid into the corresponding volume metering channel through the rotating mechanism, and then open the liquid outlet valve to release the liquid. The operation process is simple and intuitive, which improves work efficiency.

[0021] 4. The drip tray on the base can collect dripping liquid and keep the working environment clean; the digital markings on the surface of the storage tank correspond one-to-one with the quantitative channels, making it convenient for operators to quickly and accurately select the required quantitative volume. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0023] Figure 1 This is a schematic diagram of the overall structure of a formaldehyde quantitative pouring device according to this utility model from one direction;

[0024] Figure 2 This is a partial structural cross-sectional view of a formaldehyde quantitative pouring device according to the present invention;

[0025] Figure 3 This utility model Figure 2 A schematic diagram of the structure in which the worm gear has been removed.

[0026] Figure 4 This is a schematic diagram of the overall structure of the formaldehyde quantitative pouring device of this utility model from another direction;

[0027] Figure 5 This is a schematic diagram of the rotating mechanism of a formaldehyde quantitative pouring device according to the present invention. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0031] This invention provides a formaldehyde quantitative pouring device that achieves quantitative pouring of formaldehyde through mechanical structure design, replacing the traditional sensor-dependent quantitative method, thereby reducing costs while ensuring quantitative accuracy and ease of operation.

[0032] Figures 1-5 The diagram shown is a structural schematic of one embodiment of the formaldehyde quantitative pouring device of this utility model. Please refer to [link / reference]. Figures 1-5 The formaldehyde quantitative pouring device of this embodiment includes a main body comprising a storage tank 1, a tank cover 2, a rotating mechanism 3, and a liquid outlet valve 4.

[0033] The liquid storage tank 1 has a liquid storage cavity 11 with an open top. The bottom of the liquid storage cavity 11 is provided with a zero point 12 and multiple liquid metering channels 13 with different capacities. The liquid metering channels 13 are arranged in a circular pattern, and the inner diameter of each metering channel 13 is different, so as to meter different volumes of liquid. For example, in this embodiment, there are eight liquid metering channels 13, and the inner diameters of the eight liquid metering channels 13 increase sequentially, corresponding to capacities of 30ml, 60ml, 90ml, 120ml, 150ml, 180ml, 210ml and 240ml respectively. The zero point 12 corresponds to a liquid volume of 0ml. The surface of the liquid storage tank 1 is provided with numerical markings A at equal intervals along the outer edge of the knob handle 33 in a circular pattern, which correspond one-to-one with each liquid metering channel 13, so as to facilitate the operator to identify channels with different capacities.

[0034] The lid 2 is detachably installed on the top of the liquid storage tank 1 to seal the liquid storage tank and prevent liquid evaporation or external impurities from entering.

[0035] The rotating mechanism 3 is located inside the liquid storage tank 1 and can rotate to put the liquid in the liquid storage cavity 11 into the liquid metering channel 13 of the corresponding capacity. Specifically, the rotating mechanism 3 includes a worm gear 31 that can rotate around its axis inside the liquid storage cavity 11, a worm 32 that meshes with the worm gear 31 and passes through the liquid storage tank 1, and a knob handle 33 that is perpendicularly connected to the end of the worm 32. The bottom of the worm gear 31 is provided with a sealing gasket 31a covering the surface of the liquid metering channel 13. The sealing gasket 31a has a notch 31b. In the initial state, the notch 31b corresponds to the zero point 12. In order to enhance corrosion resistance, the surface of the rotating mechanism 3 and the inner wall of the liquid storage tank 1 are coated with PVDF coating.

[0036] The liquid outlet valve 4 is connected to the outlet of each liquid metering channel 13 in a one-to-one correspondence, and is used to release the liquid in the corresponding liquid metering channel 13.

[0037] Combination Figures 1-5 The formaldehyde quantitative pouring device of this embodiment is used as follows:

[0038] First, formaldehyde solution is poured into the storage cavity 11 through the top opening of the storage tank 1. At this time, the sealing gasket 31a of the rotating mechanism 3 covers the surface of the liquid metering channel 13, and the notch 31b is at the zero point 12 position to prevent liquid from flowing into the metering channel.

[0039] When a specific amount of formaldehyde solution needs to be dispensed, the operator turns the knob handle 33, which drives the worm gear 32 to rotate. The worm gear meshes with the worm wheel 31, causing the worm wheel to rotate along its axis within the liquid storage cavity 11. During the rotation, the operator rotates the notch 31b above the corresponding liquid metering channel 13 according to the number mark A on the surface of the liquid storage tank 1. At this time, the liquid in the liquid storage cavity 11 flows into the liquid metering channel 13 through the notch 31b. Since the inner diameter of the metering channel is different, a specific volume of liquid can be metered.

[0040] After the liquid flows into the liquid metering channel 13 (in this embodiment, the storage tank 1 is made of transparent material so that the liquid flow can be observed), the knob handle 33 is turned in the opposite direction to drive the rotating mechanism 3 to rotate, so that the notch 31b returns to the zero position. At this time, the sealing gasket 31a covers the surface of the liquid metering channel 13 again to prevent the liquid from continuing to flow in.

[0041] Finally, open the outlet valve 4 corresponding to the liquid metering channel 13, and the formaldehyde solution in the metering channel is released through the outlet to complete the metering pouring operation.

[0042] Throughout the operation, the PVDF coating effectively protects the rotating mechanism 3 and the inner wall of the storage tank 1 from formaldehyde corrosion, ensuring the long-term stable use of the equipment.

[0043] In addition, other embodiments include a base 5, which has a space between it and the liquid outlet valve 4, and the surface of the base 5 is provided with a drip groove 51 to collect liquid that may drip from the liquid outlet valve, keep the work surface clean and prevent contamination.

[0044] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A formaldehyde metering pouring device, characterized in that, include: The liquid storage tank (1) has a liquid storage cavity (11) with a top opening, the bottom of the liquid storage cavity (11) has a zero point (12) and multiple liquid metering channels (13) with different capacities. The lid (2) is detachably mounted on the top of the liquid storage tank (1); The rotating mechanism (3) is partially installed in the liquid storage tank (1) and can rotate to put the liquid in the liquid storage cavity (11) into the liquid metering channel (13) of the corresponding capacity; The liquid outlet valve (4) is connected to the outlet of each liquid metering channel (13) in a corresponding manner to release the liquid in the corresponding liquid metering channel (13).

2. The formaldehyde quantitative pouring device according to claim 1, characterized in that, The liquid metering channels (13) are arranged in a circular pattern, and each metering channel (13) has a different inner diameter to meter different volumes of liquid.

3. The formaldehyde quantitative pouring device according to claim 1, characterized in that, The rotating mechanism (3) includes a worm gear (31) that can rotate around its axis in the liquid storage cavity (11), a worm gear (32) that meshes with the worm gear (31) and passes through the liquid storage tank (1), and a knob handle (33) that is perpendicularly connected to the end of the worm gear (32); wherein, the bottom of the worm gear (31) is provided with a sealing gasket (31a) covering the surface of the liquid metering channel (13), and the sealing gasket (31a) has a notch (31b).

4. The formaldehyde quantitative pouring device according to claim 3, characterized in that, The surface of the rotating mechanism (3) and the inner wall of the storage tank (1) are both coated with PVDF coating.

5. A formaldehyde quantitative pouring device according to claim 3, characterized in that, The surface of the liquid storage tank (1) is provided with numerical markings (A) that correspond one-to-one with each liquid metering channel (13) along the outer edge of the knob handle (33).

6. A formaldehyde metering pouring device according to claim 1, characterized in that, It also includes a base (5), which has a space between it and the liquid outlet valve (4), and the surface of the base (5) is provided with a drip groove (51).

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