Supporting structure for feeding funnel of soil sample preparation instrument

Abstract

The utility model relates to the technical field of soil sample preparation instruments, in particular to a soil sample preparation instrument feeding funnel supporting structure which comprises an instrument main body, and a feeding funnel is mounted at one end of the instrument main body; through the toughness of a first shell, a second shell and an arc-shaped shell, the feeding hopper can be conveniently supported, a mounting plate is mounted on an instrument main body through mounting screws, the feeding hopper can be fixed, through a fixing groove formed in the surface of a fixing block, the fixing block can be pulled to insert a limiting column into the fixing groove, and the feeding hopper can be fixed. A mounting screw is limited under the elastic action of a limiting spring, so that the stability of the mounting plate is improved, a first shell, a second shell and an arc-shaped shell can be uniformly stressed when the feeding funnel is used, the phenomenon that the stress at the bottom of the feeding funnel is excessively concentrated is avoided, and the problem that the joint of the feeding funnel and the instrument main body is frequently broken is solved; and the feeding funnel does not need to be frequently replaced, so that the use cost is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling instrument technology, specifically to a support structure for the feed funnel of a soil sampling instrument. Background Technology

[0002] When testing for heavy metals in soil samples, a grinding instrument is required to grind and crush the soil samples and prepare them. To facilitate feeding the soil samples into the soil sample preparation instrument, a feed funnel is usually installed at the feed end of the soil sample preparation instrument.

[0003] In existing technologies, to prevent new metal contamination during the grinding and crushing of soil samples, instrument components need to be made of metal-free materials. Nylon feed funnels are commonly used; however, due to the brittle nature of nylon and the fact that all stress points are concentrated at the bottom of the funnel, the excessive stress leads to frequent breakage at the connection between the funnel and the instrument, necessitating frequent replacements and significantly increasing operating costs. Therefore, we propose a support structure for the feed funnel of a soil sample preparation instrument. Utility Model Content

[0004] The purpose of this invention is to provide a support structure for the feed funnel of a soil sample preparation instrument to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a soil sample preparation instrument feed funnel support structure, comprising: an instrument body, a feed funnel installed at one end of the instrument body, a first outer shell provided at the end of the feed funnel away from the instrument body, two second outer shells symmetrically installed on both sides of the feed funnel, and an arc-shaped outer shell provided at the bottom of the feed funnel.

[0006] The bottom outer wall of the feed funnel is connected to an installation plate. The surface of the installation plate is equipped with installation screws. A limit post is installed at the end of the installation screws away from the main body of the instrument. A fixing block is connected at the end of the installation plate close to the limit post. A fixing groove is opened on the surface of the fixing block.

[0007] One end of the fixed block is connected to a sliding rod, one end of which passes through the mounting plate and is connected to a limit plate. A limit spring is fixedly connected to the end of the limit plate near the fixed block.

[0008] Preferably, the feeding funnel has a feeding port at the bottom of one end near the main body of the instrument, and a funnel cover is provided at the top of the feeding funnel.

[0009] Preferably, the first outer shell is triangular, and the two second outer shells are trapezoidal. The first outer shell, the two second outer shells, and the arc-shaped outer shell are all fixedly installed on the outer wall of the feed funnel.

[0010] Preferably, the mounting plate is U-shaped and installed at one end of the feed funnel near the main body of the instrument, and the inner wall of the mounting plate is fixedly connected to the outer walls of the arc-shaped outer shell and the two second outer shells.

[0011] Preferably, the mounting plate has mounting holes on the surface near the mounting screws, one end of each mounting screw passes through the mounting hole and is threaded to the instrument body, and the other end of each mounting screw is fixedly connected to the limiting post.

[0012] Preferably, an anti-slip sleeve is fixedly installed on the inner wall of the fixing groove, one end of the limiting post is slidably inserted into the fixing groove, and the outer wall of the limiting post and the inner wall of the fixing groove are tightly connected by the anti-slip sleeve.

[0013] Preferably, a limiting groove is provided at one end of the mounting plate near the limiting plate, the limiting plate is slidably installed in the limiting groove, and one end of the limiting plate is fixedly connected to the slide rod.

[0014] Preferably, one end of the slide rod is fixedly installed on the fixing block, the other end of the slide rod passes through the mounting plate and is inserted into the limiting groove, and the limiting spring is sleeved on the end of the slide rod near the limiting plate, and one end of the limiting spring is fixedly installed on the inner wall of the limiting groove near the fixing block.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes the toughness of the first outer shell, the second outer shell, and the arc-shaped outer shell to facilitate the support of the feeding funnel. The mounting plate is installed on the instrument body using mounting screws, thus securing the feeding funnel. A fixing groove on the surface of the fixing block allows the fixing block to be pulled to insert the limiting post into the groove, and the elasticity of the limiting spring limits the mounting screw, thereby improving the stability of the mounting plate. When using the feeding funnel, the first outer shell, the second outer shell, and the arc-shaped outer shell can distribute the force evenly, preventing excessive force concentration at the bottom of the feeding funnel. This solves the problem of frequent breakage at the connection between the feeding funnel and the instrument body, eliminating the need for frequent feeding funnel replacements and significantly reducing operating costs. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a three-dimensional sectional view of the feed funnel structure of this utility model;

[0019] Figure 3 This is an exploded view of the feed funnel structure of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0021] Figure 5 This is a three-dimensional sectional view of a portion of the structure of this utility model.

[0022] In the diagram: 1. Main body of the instrument; 2. Feed funnel; 3. Funnel cover; 4. Feed inlet; 5. Arc-shaped outer shell; 6. First outer shell; 7. Second outer shell; 8. Mounting screw; 9. Mounting plate; 10. Mounting hole; 11. Limiting post; 12. Fixing block; 13. Fixing groove; 14. Anti-slip sleeve; 15. Slide rod; 16. Limiting plate; 17. Limiting groove; 18. Limiting spring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a soil sample preparation instrument feed funnel support structure, comprising: an instrument body 1, a feed funnel 2 installed at one end of the instrument body 1, a first outer shell 6 provided at the end of the feed funnel 2 away from the instrument body 1, two second outer shells 7 symmetrically installed on both sides of the feed funnel 2, and an arc-shaped outer shell 5 provided at the bottom of the feed funnel 2, wherein the first outer shell 6, the two second outer shells 7 and the arc-shaped outer shell 5 are all made of stainless steel plates with good toughness; a feed inlet 4 is opened at the bottom of the end of the feed funnel 2 near the instrument body 1, and a funnel cover 3 is provided at the top of the feed funnel 2 to facilitate opening the funnel cover 3 and adding soil samples into the feed funnel 2. The first outer shell 6 is triangular, and the two second outer shells 7 are trapezoidal. The first outer shell 6, the two second outer shells 7 and the arc-shaped outer shell 5 are all fixedly installed on the outer wall of the feed funnel 2. The bottom corner of the first outer shell 6 is U-shaped. The adjacent edges of the first outer shell 6, the two second outer shells 7 and the arc-shaped outer shell 5 are all connected by welding, so that the feed funnel 2 can be wrapped inside the first outer shell 6, the two second outer shells 7 and the arc-shaped outer shell 5.

[0025] A mounting plate 9 is connected to the bottom outer wall of the feeding funnel 2. Mounting screws 8 are mounted on the surface of the mounting plate 9. A limiting post 11 is mounted on the end of the mounting screw 8 away from the instrument body 1. A fixing block 12 is connected to the end of the mounting plate 9 near the limiting post 11. A fixing groove 13 is formed on the surface of the fixing block 12. The mounting plate 9 is U-shaped and installed at the end of the feeding funnel 2 near the instrument body 1. The inner wall of the mounting plate 9 is fixedly connected to the outer walls of the arc-shaped outer shell 5 and the two second outer shells 7, facilitating the installation of the mounting plate 9 at one end of the instrument body 1. Mounting holes 10 are formed on the surface of the mounting plate 9 near the mounting screws 8. One end of each mounting screw 8 passes through the mounting hole 10 and is threaded to the instrument body 1. The other end of each mounting screw 8 is fixedly connected to the limiting post 11. Several mounting screws 8 are evenly distributed to facilitate the fixed connection between the mounting plate 9 and the instrument body 1. An anti-slip sleeve 14 is fixedly installed on the inner wall of the fixing groove 13. One end of the limiting post 11 is slidably inserted into the fixing groove 13. The outer wall of the limiting post 11 and the inner wall of the fixing groove 13 are tightly connected by the anti-slip sleeve 14, making it difficult for the limiting post 11 to rotate in the fixing groove 13.

[0026] One end of the fixing block 12 is connected to a sliding rod 15. One end of the sliding rod 15 passes through the mounting plate 9 and is connected to a limiting plate 16. A limiting spring 18 is fixedly connected to the end of the limiting plate 16 near the fixing block 12. A limiting groove 17 is formed at the end of the mounting plate 9 near the limiting plate 16. The limiting plate 16 is slidably installed in the limiting groove 17. One end of the limiting plate 16 is fixedly connected to the sliding rod 15, which facilitates the movement of the fixing block 12 along the limiting groove 17. One end of the sliding rod 15 is fixedly installed on the fixing block 12. The other end of the sliding rod 15 passes through the mounting plate 9 and is inserted into the limiting groove 17. The limiting spring 18 is sleeved on the end of the sliding rod 15 near the limiting plate 16. One end of the limiting spring 18 is fixedly installed on the inner wall of the limiting groove 17 near the fixing block 12, which facilitates the movement of the fixing block 12 and limits the limiting post 11 under the elastic action of the limiting spring 18, thereby improving the stability of the mounting screw 8.

[0027] When this device is in operation, the toughness of the first outer shell 6, the second outer shell 7, and the arc-shaped outer shell 5 facilitates the support of the feeding funnel 2. The mounting plate 9 is installed on the instrument body 1 by the mounting screw 8, which can fix the feeding funnel 2. The fixing block 12 can be pulled to insert the limiting post 11 into the fixing groove 13 through the fixing groove 13 on the surface of the fixing block 12. The anti-slip sleeve 14 makes it difficult for the limiting post 11 to rotate in the fixing groove 13. The elasticity of the limiting spring 18 can limit the mounting screw 8, thereby improving the stability of the mounting plate 9. When using the feeding funnel 2, the first outer shell 6, the second outer shell 7, and the arc-shaped outer shell 5 can be evenly stressed, so as to avoid excessive stress concentration at the bottom of the feeding funnel 2. This solves the problem of frequent breakage at the connection between the feeding funnel 2 and the instrument body 1, and eliminates the need for frequent replacement of the feeding funnel 2, which greatly reduces the cost of use.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support structure for the feed funnel of a soil sample preparation instrument, comprising: The instrument body (1) is characterized in that: a feeding funnel (2) is installed at one end of the instrument body (1), a first outer shell (6) is provided at the end of the feeding funnel (2) away from the instrument body (1), two second outer shells (7) are symmetrically installed on both sides of the feeding funnel (2), and an arc-shaped outer shell (5) is provided at the bottom of the feeding funnel (2). The bottom outer wall of the feed funnel (2) is connected to an installation plate (9), and an installation screw (8) is installed on the surface of the installation plate (9). A limit post (11) is installed at the end of the installation screw (8) away from the instrument body (1), and a fixing block (12) is connected at the end of the installation plate (9) close to the limit post (11). A fixing groove (13) is opened on the surface of the fixing block (12). One end of the fixed block (12) is connected to a slide rod (15), one end of the slide rod (15) passes through the mounting plate (9) and is connected to a limit plate (16), and a limit spring (18) is fixedly connected to the end of the limit plate (16) near the fixed block (12).

2. The soil sample preparation instrument feed funnel support structure according to claim 1, characterized in that: The feed funnel (2) has a feed inlet (4) at the bottom of one end near the instrument body (1), and a funnel cover (3) is provided at the top of the feed funnel (2).

3. The soil sample preparation instrument feed funnel support structure according to claim 1, characterized in that: The first outer shell (6) is triangular, and the two second outer shells (7) are trapezoidal. The first outer shell (6), the two second outer shells (7) and the arc-shaped outer shell (5) are all fixedly installed on the outer wall of the feed funnel (2).

4. The soil sample preparation instrument feed funnel support structure according to claim 1, characterized in that: The mounting plate (9) is U-shaped and installed at one end of the feed funnel (2) near the instrument body (1). The inner wall of the mounting plate (9) is fixedly connected to the outer walls of the arc-shaped outer shell (5) and the two second outer shells (7).

5. The soil sample preparation instrument feed funnel support structure according to claim 1, characterized in that: Mounting holes (10) are opened on the surface of the mounting plate (9) near the mounting screws (8). One end of the mounting screws (8) passes through the mounting holes (10) and is threaded to the instrument body (1). The other end of the mounting screws (8) is fixedly connected to the limiting post (11).

6. The soil sample preparation instrument feed funnel support structure according to claim 1, characterized in that: The inner wall of the fixing groove (13) is fixedly installed with an anti-slip sleeve (14), and one end of the limiting post (11) is slidably inserted into the fixing groove (13). The outer wall of the limiting post (11) and the inner wall of the fixing groove (13) are tightly connected by the anti-slip sleeve (14).

7. The soil sample preparation instrument feed funnel support structure according to claim 1, characterized in that: The mounting plate (9) has a limiting groove (17) at one end near the limiting plate (16). The limiting plate (16) is slidably installed in the limiting groove (17). One end of the limiting plate (16) is fixedly connected to the slide rod (15).

8. The soil sample preparation instrument feed funnel support structure according to claim 1, characterized in that: One end of the slide rod (15) is fixedly installed on the fixing block (12), and the other end of the slide rod (15) passes through the mounting plate (9) and is inserted into the limiting groove (17). The limiting spring (18) is sleeved on the end of the slide rod (15) near the limiting plate (16), and one end of the limiting spring (18) is fixedly installed on the inner wall of the end of the limiting groove (17) near the fixing block (12).

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