A sealing mechanism of a test tube for chemical fertilizer detection

Abstract

The utility model discloses a kind of sealing mechanisms of chemical fertilizer detection test tube, it is related to chemical fertilizer detection equipment technical field.The utility model includes base and mounting block, the surface of vertical block is fixedly connected with spring, the surface of spring and the surface of test tube positioning placement assembly are all provided with clamping positioning assembly for test tube stable placement, the top surface of base is fixedly connected with vertical support, adjusting hole is penetrated and is established in the surface of vertical support, the surface of mounting block is provided with locking assembly for locking assembly installation position fixed on vertical support, the surface of sealing connection component is fixedly connected with sealing gasket.The utility model in cooperation with vertical support, adjusting hole, locking assembly and guiding connection component, mounting block and sealing connection component height can be flexibly adjusted, ensure that sealing gasket effectively sticks test tube open top surface, improve sealing reliability;Sealing gasket uses polytetrafluoroethylene-rubber composite material, prolongs the service life of mechanism, reduces use cost.

Description

Technical Field

[0001] This utility model relates to the technical field of fertilizer testing equipment, specifically to a sealing mechanism for a test tube used in fertilizer testing. Background Technology

[0002] Fertilizers contain trace elements, and manufacturers typically add elements such as boron, iron, zinc, copper, and molybdenum, with chelated trace elements being the most effective. To improve the efficiency of fertilizer testing, the samples in the test tubes need to be sealed. Chinese Patent Publication No. CN210646470U discloses a sealing mechanism for test tubes used in fertilizer testing, including a fixed support. A first limiting plate is fixedly connected to the inner side of the fixed support, and a test tube is placed inside the first limiting plate. Sliding rods are fixedly connected to the left and right sides of the top of the fixed support. A sealing pressure plate is provided at the top of the fixed support, and sliding sleeves connected to the sliding rods are fixedly connected to the left and right sides of the sealing pressure plate.

[0003] Regarding the disclosed technology, the sealing mechanism of existing fertilizer testing test tubes mostly uses a spring to drive the sealing plate and sealing gasket to move down and seal the top opening of the test tube. However, the spring installation height is difficult to adjust. When dealing with test tubes of different heights, the sealing gasket cannot effectively fit the top surface of the test tube, affecting the sealing performance. In addition, the sealing gasket is easily corroded by the chemical components of fertilizer, shortening its service life and increasing costs.

[0004] Therefore, a sealing mechanism for test tubes used in fertilizer testing is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing mechanism for test tubes used in fertilizer testing in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A sealing mechanism for test tubes used in fertilizer testing includes a base and a mounting block. The top surface of the base is provided with a test tube positioning and placement component for placing the test tubes on the mechanism. A vertical block is fixedly connected to the surface of the test tube positioning and placement component, and a spring is fixedly connected to the surface of the vertical block. Both the surface of the spring and the surface of the test tube positioning and placement component are provided with clamping and positioning components for stable placement of the test tubes. A vertical frame is fixedly connected to the top surface of the base, and an adjustment hole is provided through the surface of the vertical frame. A locking component is provided on the surface of the mounting block for fixing the installation position on the vertical frame. A guide connection component is provided on the surface of the vertical frame for adjusting the installation height of the mounting block. A sealing connection component for sealing the test tubes is provided on the bottom surface of the mounting block, and a sealing gasket is fixedly connected to the surface of the sealing connection component.

[0008] Furthermore, the test tube positioning and placement assembly includes a placement bracket, the top surface of the base is fixedly connected to the placement bracket, and the vertical block is fixedly connected to the placement bracket. The top surface of the base is fixedly connected to a bottom rubber pad, the top surface of the bottom rubber pad has a bottom placement opening, and the top surface of the bottom rubber pad has a through placement hole for placing the test tube.

[0009] Furthermore, the clamping and positioning assembly includes a clamping block, one end of the spring and the top surface of the placement bracket are both fixedly connected to the clamping block, and a sponge block is fixedly connected to the surface of the clamping block.

[0010] Furthermore, the locking assembly includes a locking screw, the locking screw is fixedly connected to the surface of the mounting block, and a butterfly nut is threadedly connected to the surface of the locking screw.

[0011] Furthermore, the guide connection assembly includes a fixed corner bracket, the surface of the vertical frame is fixedly connected to the fixed corner bracket, the surface of the fixed corner bracket is fixedly connected to a guide rail, the surface of the guide rail is slidably connected to a slider, and the mounting block is fixedly connected to the slider.

[0012] Furthermore, the sealing connection assembly includes a vertical rod, the bottom surface of the mounting block is fixedly connected to the vertical rod, the bottom surface of the mounting block is fixedly connected to a compression spring, the surface of the vertical rod is movably sleeved with a pressure plate, and the bottom end of the compression spring is fixedly connected to the pressure plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the design of the test tube positioning and placement component, allows the test tubes to be stably placed on the base. The vertical block and spring, together with the clamping and positioning component, can stably clamp and position test tubes of different sizes, adapting to diverse testing needs. The vertical frame, adjustment hole, locking component, and guide connection component work together to flexibly adjust the height of the mounting block and sealing connection component. For test tubes of different heights, it ensures that the sealing gasket effectively fits the open top surface of the test tube, improving sealing reliability. The sealing gasket is made of polytetrafluoroethylene-rubber composite material, which is resistant to corrosion from chemical components of fertilizers, delays aging and damage, extends the service life of the mechanism, and reduces operating costs.

[0015] 2. In the test tube positioning and placement assembly, the placement bracket provides the installation base, and the bottom rubber pad, bottom placement opening, and placement hole cooperate to limit the bottom of the test tube, ensuring the stability of the test tube placement. The clamping and positioning assembly uses spring force to flexibly clamp the test tube through the clamping block and sponge block, both fixing the test tube and avoiding damage. In the locking assembly, the locking screw and butterfly nut cooperate, which is easy to operate and can quickly lock the installation block at different height positions on the vertical frame to achieve the adjustment of the sealing height. The guide connection assembly uses fixed angle brackets, guide rails, and sliders to provide stable guidance for the up and down movement of the installation block, ensuring a smooth and precise adjustment process. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is an enlarged schematic diagram of the structure at point A of this utility model;

[0018] Figure 3 This is a schematic diagram of the first partial structure of this utility model;

[0019] Figure 4 This is a right-side view of the three-dimensional structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the second partial structure of this utility model.

[0021] Reference numerals: 1. Base; 2. Test tube positioning and placement assembly; 201. Placement bracket; 202. Bottom rubber pad; 203. Bottom placement opening; 204. Placement hole; 3. Vertical block; 4. Spring; 5. Clamping and positioning assembly; 501. Clamping block; 502. Sponge block; 6. Vertical frame; 7. Adjustment hole; 8. Mounting block; 9. Locking assembly; 901. Locking screw; 902. Butterfly nut; 10. Guide connection assembly; 1001. Fixed angle bracket; 1002. Guide rail; 1003. Slider; 11. Sealing connection assembly; 1101. Vertical rod; 1102. Compression spring; 1103. Pressure plate; 12. Sealing gasket. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figure 1-5 As shown, a sealing mechanism for test tubes used in fertilizer testing includes a base 1 and a mounting block 8. The top surface of the base 1 is provided with a test tube positioning component 2 for placing the test tubes on the mechanism. A vertical block 3 is fixedly connected to the surface of the test tube positioning component 2, and a spring 4 is fixedly connected to the surface of the vertical block 3. Clamping and positioning components 5 for stable placement of the test tubes are provided on both the surface of the spring 4 and the surface of the test tube positioning component 2. A vertical frame 6 is fixedly connected to the top surface of the base 1, and an adjustment hole 7 is provided through the surface of the vertical frame 6. A locking component 9 for fixing the installation position on the vertical frame 6 is provided on the surface of the vertical frame 6. A guide connection component 10 for adjusting the installation height of the mounting block 8 is provided on the surface of the vertical frame 6. A sealing connection component 11 for sealing the test tubes is provided on the bottom surface of the mounting block 8, and a sealing gasket 12 is fixedly connected to the surface of the sealing connection component 11. The sealing gasket 12 is made of polytetrafluoroethylene-rubber composite material. Specifically, in this sealing mechanism for test tubes used in fertilizer testing, the test tubes are positioned on the base 1... The component 2 allows the test tube to be installed on the base 1. The vertical block 3, spring 4, and clamping positioning component 5 ensure stable positioning of the test tube on the sealing mechanism. This structure also allows for the positioning of test tubes of different sizes. The locking component 9 on the surface of the mounting block 8 locks the mounting block 8 securely on the vertical frame 6. The adjustment hole 7 on the vertical frame 6 allows for adjustment of the mounting height of the mounting block 8. The guide connection component 10 on the mounting block 8 allows for stable up-and-down movement. When the mounting block 8 is adjusted, the mounting height of the sealing connection component 11 can also be adjusted. This allows the sealing gasket 12 to effectively adhere to the open top surface of the test tube, depending on the type of test tube being installed. The sealing gasket 12 is made of polytetrafluoroethylene-rubber composite material, which resists corrosion from various chemical components in fertilizers, reduces aging and damage to the sealing gasket 12, extends the service life of the sealing mechanism, and lowers operating costs.

[0027] like Figure 1 , Figure 3As shown, the test tube positioning and placement assembly 2 includes a placement bracket 201. The placement bracket 201 is fixedly connected to the top surface of the base 1, and the vertical block 3 is fixedly connected to the placement bracket 201. A bottom rubber pad 202 is fixedly connected to the top surface of the base 1. The bottom rubber pad 202 has a bottom placement opening 203 on its top surface and a placement hole 204 for placing test tubes through its top surface. Specifically, the placement bracket 201 is fixed to the top surface of the base 1 by welding or bolting to provide initial support for placing the test tubes. The bottom rubber pad 202 is fixed to the top surface of the base 1 by bonding or pressing. The bottom placement opening 203 is used to accommodate the bottom of the test tube. The placement hole 204 penetrates the bottom rubber pad 202. At the same time, the opening size of the placement hole 204 allows test tubes of various sizes to pass through, allowing the test tubes to pass through and achieve initial positioning, preventing the test tubes from tipping over.

[0028] like Figure 1 , Figure 3 As shown, the clamping and positioning assembly 5 includes a clamping block 501. One end of the spring 4 and the top surface of the placement bracket 201 are both fixedly connected to the clamping block 501. A sponge block 502 is fixedly connected to the surface of the clamping block 501. Specifically, the clamping block 501 is welded or bolted to one end of the spring 4 and the top surface of the placement bracket 201, respectively. The sponge block 502 is fixed to the surface of the clamping block 501 by adhesive. With the help of the elastic force of the spring 4, the sponge block 502 flexibly fits the outer wall of the test tube to achieve stable clamping of the test tube while avoiding damage to the test tube.

[0029] like Figure 4 , Figure 5 As shown, the locking assembly 9 includes a locking screw 901, which is fixedly connected to the surface of the mounting block 8. A butterfly nut 902 is threadedly connected to the surface of the locking screw 901. Specifically, the locking assembly 9 is configured such that the locking screw 901 is welded or bolted to the surface of the mounting block 8, passes through the adjustment hole 7 of the vertical frame 6, and engages with the butterfly nut 902. By tightening the butterfly nut 902, the mounting block 8 can be locked at a specified height on the vertical frame 6.

[0030] like Figure 4 , Figure 5As shown, the guide connection assembly 10 includes a fixed angle bracket 1001. The fixed angle bracket 1001 is fixedly connected to the surface of the vertical frame 6. The fixed angle bracket 1001 is fixedly connected to the surface of the fixed angle bracket 1001. The guide rail 1003 is slidably connected to the surface of the guide rail 1002. The mounting block 8 is fixedly connected to the slider 1003. Specifically, the guide connection assembly 10 is configured such that the fixed angle bracket 1001 is fixed to the surface of the vertical frame 6 by welding. The guide rail 1002 is welded or bolted to the surface of the fixed angle bracket 1001. The slider 1003 is slidably engaged with the guide rail 1002. The slider 1003 is welded or bolted to the mounting block 8, providing stable guidance for the vertical movement of the mounting block 8 and ensuring a smooth and precise height adjustment process.

[0031] like Figure 1 , Figure 2 As shown, the sealing connection assembly 11 includes a vertical rod 1101. The vertical rod 1101 is fixedly connected to the bottom surface of the mounting block 8, and a compression spring 1102 is fixedly connected to the bottom surface of the mounting block 8. A pressure plate 1103 is movably sleeved on the surface of the vertical rod 1101, and the bottom end of the compression spring 1102 is fixedly connected to the pressure plate 1103. Specifically, in the arrangement of the sealing connection assembly 11, the vertical rod 1101 is fixed to the bottom surface of the mounting block 8, one end of the compression spring 1102 is welded and fixed to the bottom surface of the mounting block 8, and the other end is connected to the pressure plate 1103. The pressure plate 1103 is movably sleeved on the surface of the vertical rod 1101 and can move axially along the vertical rod 1101. Through the pressure of the compression spring 1102, the pressure plate 1103 and the sealing gasket 12 can be moved downward to seal the top surface of the test tube. The sealing gasket 12 is bonded or pressed onto the bottom surface of the pressure plate 1103 and is made of polytetrafluoroethylene-rubber composite material, which has good corrosion resistance and sealing performance.

[0032] In summary: The sealing height adjustment is based on the actual height of the test tube, adjusting the height of the mounting block 8 and the sealing connection assembly 11. Loosen the butterfly nut 902 to release the locking screw 901 from the mounting block 8; push the mounting block 8, and with the sliding cooperation of the slider 1003 and the guide rail 1002 in the guide connection assembly 10, the mounting block 8 moves along the height direction of the vertical frame 6, simultaneously driving the sealing connection assembly 11 to move synchronously; when the distance between the bottom surface of the sealing gasket 12 and the top surface of the open test tube is suitable and can be judged by observation or simple measurement, pass the locking screw 901 through the adjustment hole 7 of the corresponding height of the vertical frame 6, tighten the butterfly nut 902, and use the clamping force between the butterfly nut 902 and the surface of the vertical frame 6 to lock the mounting block 8 at the current height, completing the sealing height adjustment to adapt to the sealing requirements of test tubes of different heights.

[0033] The test tube is placed and positioned by moving the sealing gasket 12 upwards via the sealing connection component 11 and inserting it into the placement hole 204 of the test tube positioning component 2. The bottom of the test tube falls into the bottom placement opening 203 of the bottom rubber pad 202, achieving initial positioning. At this time, the spring 4 is in a naturally extended or pre-compressed state. As the test tube is inserted, the spring 4 pushes the clamping block 501 and the surface sponge block 502 closer to the test tube until the sponge block 502 is tightly attached to the outer wall of the test tube. The elasticity of the spring 4 is used to flexibly clamp the test tube, completing the stable placement of the test tube on the mechanism, which is suitable for clamping test tubes of different diameters.

[0034] After the test tube is placed, the pressure plate 1103 is released. Under the elastic force of the compression spring 1102, the pressure plate 1103 moves on the vertical rod 1101, causing the sealing gasket 12 to press down against the top surface of the open end of the test tube. The continuous elastic force of the compression spring 1102 ensures that the sealing gasket 12 fits tightly against the mouth of the test tube, achieving a reliable seal. At the same time, the polytetrafluoroethylene-rubber composite material used in the sealing gasket 12 can effectively resist the corrosion of chemical components such as acids, alkalis, and salts in fertilizers, delaying the aging and damage of the sealing gasket 12, ensuring long-term stable sealing effect, and reducing detection errors and equipment maintenance costs caused by the failure of the sealing gasket 12.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing mechanism for a test tube used for fertilizer testing, characterized in that, The device includes a base (1) and a mounting block (8). The top surface of the base (1) is provided with a test tube positioning and placement component (2) for placing test tubes on the device. A vertical block (3) is fixedly connected to the surface of the test tube positioning and placement component (2). A spring (4) is fixedly connected to the surface of the vertical block (3). Both the surface of the spring (4) and the surface of the test tube positioning and placement component (2) are provided with clamping and positioning components (5) for stable placement of test tubes. A vertical frame (6) is fixedly connected to the top surface of the base (1). An adjustment hole (7) is opened through the surface of the vertical frame (6). A locking component (9) is provided on the surface of the mounting block (8) for fixing the installation position on the vertical frame (6). A guide connection component (10) is provided on the surface of the vertical frame (6) for adjusting the installation height of the mounting block (8). A sealing connection component (11) for sealing test tubes is provided on the bottom surface of the mounting block (8). A sealing gasket (12) is fixedly connected to the surface of the sealing connection component (11).

2. The sealing mechanism for a fertilizer testing tube according to claim 1, characterized in that, The test tube positioning and placement assembly (2) includes a placement bracket (201). The top surface of the base (1) is fixedly connected to the placement bracket (201), and the vertical block (3) is fixedly connected to the placement bracket (201). The top surface of the base (1) is fixedly connected to a bottom rubber pad (202). The top surface of the bottom rubber pad (202) is provided with a bottom placement opening (203), and the top surface of the bottom rubber pad (202) is provided with a placement hole (204) for placing test tubes.

3. The sealing mechanism for a fertilizer testing tube according to claim 2, characterized in that, The clamping and positioning assembly (5) includes a clamping block (501). One end of the spring (4) and the top surface of the placement bracket (201) are both fixedly connected to the clamping block (501). A sponge block (502) is fixedly connected to the surface of the clamping block (501).

4. The sealing mechanism for a fertilizer testing tube according to claim 1, characterized in that, The locking assembly (9) includes a locking screw (901), the surface of the mounting block (8) is fixedly connected to the locking screw (901), and the surface of the locking screw (901) is threadedly connected to a butterfly nut (902).

5. The sealing mechanism for a fertilizer testing tube according to claim 1, characterized in that, The guide connection assembly (10) includes a fixed corner bracket (1001), the surface of the vertical frame (6) is fixedly connected to the fixed corner bracket (1001), the surface of the fixed corner bracket (1001) is fixedly connected to the guide rail (1002), the surface of the guide rail (1002) is slidably connected to the slider (1003), and the mounting block (8) is fixedly connected to the slider (1003).

6. The sealing mechanism for a fertilizer testing tube according to claim 1, characterized in that, The sealing connection assembly (11) includes a vertical rod (1101), the bottom surface of the mounting block (8) is fixedly connected to the vertical rod (1101), the bottom surface of the mounting block (8) is fixedly connected to a compression spring (1102), the surface of the vertical rod (1101) is movably sleeved with a pressure plate (1103), and the bottom end of the compression spring (1102) is fixedly connected to the pressure plate (1103).

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