Sample injector of agricultural product pesticide residue detection equipment

Abstract

The utility model discloses a sample injector of agricultural product pesticide residue detection equipment, and relates to the technical field of pesticide residue detection sample injectors. Comprising a base block, a sample injection moving assembly is arranged on the back side of the base block, a plurality of fixedly-installed U-shaped plates are fixed to the surface of the base block at equal intervals, one ends of the fixedly-installed U-shaped plates are closed, and a sample frame assembly is installed on the fixedly-installed U-shaped plates and comprises placement battens slidably placed on the fixedly-installed U-shaped plates; a second arch-shaped plate is fixed at the top of the first arch-shaped plate, and a sample stabilizing assembly is arranged on the sample frame assembly. Through the arrangement of the sample stabilizing assembly, a sample bottle is placed on the placing strip plate in a contact manner through the sample placing hole, and the clamping cushion blocks are controlled to be close to the sample bottle until the sample bottle is stably clamped, so that the placing stability of the sample bottle is effectively ensured, and the sample injection needle body is prevented from shaking during operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sample injector of pesticide residue detection, and specifically relates to a sample injector of pesticide residue detection equipment for agricultural products. BACKGROUND

[0002] The sample injector is mainly used for introducing the sample to be analyzed into an analytical instrument for detection. Different types of analytical instruments (such as gas chromatographs, liquid chromatographs, mass spectrometers, etc.) need a sample injector to ensure that the sample can be accurately and stably injected into the analysis system in a suitable manner. In the use process of the pesticide residue detection equipment for agricultural products, a sample injector is needed.

[0003] The existing sample injector and pesticide residue detector (authorized publication number: CN214310440U) have the following defects: the above-mentioned sample injector and pesticide residue detector effectively solve the problems of inconvenient transportation and use of the pesticide residue detector in the prior art. However, the placement hole on the container box for placing and storing the sample container plays a role in preliminarily limiting the sample bottle. During the process of using the sample needle body to pierce the sample bottle, the sample bottle needs to be accurately and stably placed to avoid shaking and affecting the operation of the sample needle body. Therefore, the utility model is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a sample injector of pesticide residue detection equipment for agricultural products to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sample injector of pesticide residue detection equipment for agricultural products, comprising a base block, a sample moving assembly is arranged on the back side of the base block, a plurality of fixed installation U plates are fixed on the surface of the base block at equal intervals, one end of the fixed installation U plate is closed, a sample rack assembly is installed on the fixed installation U plate, the sample rack assembly comprises a placement strip plate slidingly placed on the fixed installation U plate, a first arc plate is fixed on the placement strip plate, a second arc plate is fixed on the top of the first arc plate, a sample stabilizing assembly is arranged on the sample rack assembly, the sample stabilizing assembly comprises a plurality of sample placement holes equally arranged on the horizontal plate of the first arc plate and the second arc plate, clamping pad blocks are symmetrically arranged on both sides above the sample placement holes, clamping connecting rods are fixed on the middle part of the outer side surface of the clamping pad blocks, side connecting arc plates are connected and fixed between the two clamping connecting rods corresponding in vertical position on the horizontal plate of the first arc plate and the second arc plate.

[0006] Preferably, vertical plates are fixed on the front surface of the side connecting arc plates, symmetrical plates are arranged on the outer side of the vertical plates and fixed with the second arc plate, bidirectional lead screws are rotatably arranged between the two symmetrical plates, limit knobs are fixed on the bottom surface of the clamping connecting rods, limit holes matched with the limit knobs are arranged on the first arc plate and the second arc plate.

[0007] Preferably, a fixed rod is arranged below the bidirectional screw rod, the fixed rod is fixed at the two ends of the corresponding symmetrical plates respectively, the vertical plate is sleeved on the fixed rod, one end of the bidirectional screw rod is connected with a micro motor, and the micro motor is installed on the symmetrical plate.

[0008] Preferably, the sample rack assembly further comprises a plurality of rotating insertion rods rotatably inserted on one side of the base block, rotating stop rods are fixed to outer ends of the rotating insertion rods, the rotating stop rods are arranged at one side of the sample rack assembly, handles are fixed to outer sides of the first and second arc-shaped plates.

[0009] Preferably, the sample rack assembly further comprises a plurality of rotating insertion rods rotatably inserted on one side of the base block, rotating stop rods are fixed to outer ends of the rotating insertion rods, the rotating stop rods are arranged at one side of the sample rack assembly, handles are fixed to outer sides of the first and second arc-shaped plates.

[0010] Preferably, one end of the screw rod is connected with a moving motor, the moving motor is installed on the frame plate, limit blocks are fixed to a top surface of the sliding block, limit holes matched with the limit blocks are formed in the frame plate, and supporting legs are fixed to four corners of an overall bottom surface of the base block and the frame plate.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The sample injector of the agricultural product pesticide residue detection equipment is characterized in that the sample stable assembly is arranged, the sample bottle is placed on the placing strip through the sample placing hole, the control clamping pad blocks are close to each other until the sample bottle is clamped stably, and the placing stability of the sample bottle is effectively ensured, and shaking of the sample bottle during operation of the sample needle body is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a first three-dimensional structure schematic view of the utility model;

[0014] Figure 2 It is a second three-dimensional structure schematic view of the utility model;

[0015] Figure 3 It is a first sectional view of the utility model;

[0016] Figure 4 It is a second sectional view of the utility model;

[0017] Figure 5 It is a first sectional view of the utility model; Figure 3 It is an enlarged structure schematic view of part A of the utility model.

[0018] In the figure: 1, base block; 101, fixed installation U plate; 2, frame plate; 201, screw rod; 202, sliding block; 203, connecting horizontal plate; 204, track sliding hole; 205, track block; 206, lifting rod; 207, sample needle body; 3, placement strip plate; 301, first arched plate; 302, second arched plate; 303, rotating plug; 304, rotating stop lever; 305, sample placement hole; 4, clamping pad block; 401, clamping connecting rod; 402, side connecting arched plate; 403, vertical plate; 404, symmetrical plate; 405, bidirectional screw rod; 406, fixed rod; 407, limiting convex rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] In the use process of the pesticide residue detection equipment for agricultural products, a matched sample injector needs to be used. The sample injector provided by the utility model ensures the stability of the placement of the sample bottle on the sample rack assembly. Meanwhile, the sample rack assembly is convenient to disassemble and install, and the use amount of the sample rack assembly is adjusted. In the use process of the sample injector, preparation work such as inspection and installation needs to be performed in advance, so that the normal use of the sample injector is ensured.

[0021] As shown in Figures 1-5 The utility model provides a technical scheme: a kind of sample injector of agricultural product pesticide residue detection equipment, including base block 1, base block 1 back side is provided with sample injection mobile assembly, base block 1 surface equidistant fixed with multiple fixed installation U plate 101, fixed installation U plate 101 one end is closed, fixed installation U plate 101 is installed with sample rack assembly, sample rack assembly includes the placement strip plate 3 of sliding placement on fixed installation U plate 101, placement strip plate 3 is all fixed with first arched plate 301, first arched plate 301 top is fixed with second arched plate 302, sample rack assembly is provided with sample stabilizing assembly, sample stabilizing assembly includes the horizontal plate of first arched plate 301 and second arched plate 302 equidistantly opened multiple sample placement holes 305, sample placement hole 305 upper side position symmetry is provided with clamping pad block 4, clamping pad block 4 is outward lateral surface middle part fixed with clamping connecting rod 401, two clamping connecting rods 401 between the vertical corresponding position of the horizontal plate of first arched plate 301 and second arched plate 302 are connected and fixed with side connecting arched plate 402.

[0022] In the embodiment, the front of the side connecting arch plate 402 is fixed with a vertical plate 403, the outer side of the vertical plate 403 is provided with a symmetrical plate 404 fixed with the second arch plate 302, a bidirectional screw rod 405 is rotatably inserted between the two symmetrical plates 404, a limiting lug 407 is fixed at the bottom surface of the clamping connecting rod 401, and limiting holes are formed in the first arch plate 301 and the second arch plate 302 and matched with the limiting lug 407, wherein the limiting lug 407 and the limiting hole play a role in transverse limiting and stabilizing, the clamping pad 4 is made of rubber block and plays a certain protection role.

[0023] In the embodiment, the lower side of the bidirectional screw rod 405 is provided with a fixed rod 406, the two ends of the fixed rod 406 are respectively fixed on the corresponding symmetrical plates 404, the vertical plate 403 is slidably sleeved on the fixed rod 406, one end of the bidirectional screw rod 405 is connected with a micro motor, and the micro motor is installed on the symmetrical plate 404, through the setting of the sample stabilizing assembly, the sample bottle is placed on the placing strip plate 3 through the sample placing hole 305, the clamping pad 4 is controlled to be close to each other until the sample bottle is stably clamped, the placing stability of the sample bottle is effectively ensured, and shaking of the sample bottle during the operation of the sample needle body 207 is avoided, the sample rack assembly further includes a plurality of rotating insertion rods 303 rotatably inserted on one side of the base block 1, the outer end of the rotating insertion rod 303 is fixed with a rotating stop rod 304, the rotating stop rod 304 is arranged at the position on one side of the sample rack assembly, and the outer side of the first arch plate 301 and the second arch plate 302 is fixed with a handle, wherein the sample bottle is used for storing pesticide residue samples and facilitates subsequent detection operation.

[0024] In the embodiment, the sample moving assembly includes a frame plate 2 fixed on the back side of the base block 1, a screw rod 201 is rotatably inserted on the upper portion of the frame plate 2, a sliding block 202 is matched and sleeved on the screw rod 201, a connecting horizontal plate 203 is fixed on the front surface of the sliding block 202, a track sliding hole 204 is formed in the connecting horizontal plate 203, a track block 205 is drivingly arranged in the track sliding hole 204, a lifting rod 206 is connected to the bottom surface of the track block 205, a sample needle body 207 is connected and arranged at the bottom end of the lifting rod 206, a moving motor is connected to one end of the screw rod 201, the moving motor is installed on the frame plate 2, a limiting block is fixed on the top surface of the sliding block 202, limiting holes are formed in the frame plate 2 and matched with the limiting block, and supporting legs are fixed on the overall bottom surface of the base block 1 and the frame plate 2, wherein the sample needle body 207 is a prior art, a connecting pipe is connected to the sample needle body 207 and connected with an existing detection instrument, and the moving motor and the micro motor are servo motors in the prior art.

[0025] Working principle: when using the sample injector, a plurality of sample rack assemblies are installed and fixed by rotating the rotating stop lever 304, the sample bottle is placed in the sample placing hole 305 on the first arc plate 301 and the second arc plate 302, and the sample bottle is clamped by the clamping pads 4 to approach each other, so that the sample bottle is placed stably, and finally the sample needle body 207 is driven by the sample moving assembly to move horizontally transversely, horizontally vertically and vertically to ensure that it is inserted into the sample bottle to take samples.

[0026] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended embodiments and their equivalents.

Claims

1. A sample injector for agricultural product pesticide residue detection equipment, comprising a base block (1), characterized in that: A sample injection moving component is provided on the back side of the base block (1). Multiple fixed mounting U plates (101) are fixed at equal intervals on the surface of the base block (1). One end of the fixed mounting U plate (101) is closed. A sample rack assembly is installed on the fixed mounting U plate (101). The sample rack assembly includes a placement strip (3) that slides on the fixed mounting U plate (101). A first arched plate (301) is fixed on each placement strip (3). A second arched plate (302) is fixed on the top of the first arched plate (301). Sample racks are provided on the sample rack assembly. The stabilizing component includes multiple sample placement holes (305) equidistantly opened on the horizontal plates of the first arched plate (301) and the second arched plate (302). Clamping pads (4) are symmetrically arranged on both sides above the sample placement holes (305). A clamping connecting rod (401) is fixed to the middle of the outer side of the clamping pad (4). A side connecting arch plate (402) is fixed between two clamping connecting rods (401) at corresponding vertical positions on the horizontal plates of the first arched plate (301) and the second arched plate (302).

2. The sample injector for pesticide residue testing equipment for agricultural products according to claim 1, characterized in that: The side connecting arch plate (402) is fixed with a vertical plate (403) on the front. A symmetrical plate (404) fixed to the second arch plate (302) is provided on the outside of the vertical plate (403). A two-way screw rod (405) is inserted between the two symmetrical plates (404). A limiting protrusion (407) is fixed on the bottom surface of the clamping connecting rod (401). Limiting holes adapted to the limiting protrusion (407) are opened on the first arch plate (301) and the second arch plate (302).

3. The sample injector for pesticide residue testing equipment for agricultural products according to claim 2, characterized in that: A fixed rod (406) is provided below the bidirectional lead screw (405). The two ends of the fixed rod (406) are respectively fixed on the corresponding symmetrical plate (404). The vertical plate (403) is slidably sleeved on the fixed rod (406). One end of the bidirectional lead screw (405) is connected to a micro motor, which is installed on the symmetrical plate (404).

4. The sample injector for agricultural product pesticide residue detection equipment according to claim 1, characterized in that: The sample rack assembly also includes a plurality of rotating rods (303) rotatably inserted into one side of the base block (1). A rotating stop bar (304) is fixed to the outer end of the rotating rod (303). The rotating stop bar (304) is located on one side of the sample rack assembly. A handle is fixed to the outer side of the first arch plate (301) and the second arch plate (302).

5. The sample injector for pesticide residue testing equipment for agricultural products according to claim 1, characterized in that: The sample injection moving assembly includes a frame plate (2) fixed to the back side of the base block (1), a screw (201) is rotatably inserted into the upper part of the frame plate (2), a sliding block (202) is adapted to be provided on the screw (201), a connecting horizontal plate (203) is fixed to the front of the sliding block (202), a track sliding hole (204) is opened on the connecting horizontal plate (203), a track block (205) is adapted to be driven in the track sliding hole (204), a lifting rod (206) is connected to the bottom surface of the track block (205), and a sample injection needle body (207) is connected to the bottom end of the lifting rod (206).

6. The sample injector for pesticide residue testing equipment for agricultural products according to claim 5, characterized in that: One end of the screw (201) is connected to a moving motor, which is mounted on the frame plate (2). A limit block is fixed on the top surface of the sliding block (202). A limit hole adapted to the limit block is opened on the frame plate (2). Support legs are fixed at the four corners of the bottom surface of the base block (1) and the frame plate (2).

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