Electrochemical biosensor applied to pesticide residue detection

Abstract

The invention relates to the technical field of pesticide detection, in particular to an electrochemical biosensor applied to pesticide residue detection.The electrochemical biosensor comprises a supporting frame, a storage block is fixedly connected to the upper portion of the front surface of the supporting frame, a cavity is formed in the storage block, and an inner cavity of the cavity is slidably connected with a connecting plate; the rear side of the connecting plate is fixedly connected with a connecting protruding block, the surface of the connecting protruding block is sleeved with a spring, the two ends of the spring are fixedly connected with the connecting plate and the storage block respectively, the front side of an inner cavity of the cavity is slidably connected with a locking rod, and the rear end of the locking rod penetrates into an inner cavity of the connecting protruding block. In the actual use process, by simplifying the installation steps and structure of the electrochemical biosensor, the electrochemical biosensor can be rapidly installed, the speed is high, the construction period is short, the efficiency is high, cooperation of multiple persons is not needed, the convenience is high, the stability is high, and the installation stability of the device is further maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of pesticide detection, in particular to an electrochemical biosensor used for pesticide residue detection. Background Art

[0002] The development of electrochemical and biosensors is one of the most active areas in analytical research. Electrochemical and biosensors are instruments that are sensitive to biological substances and convert their concentrations into electrical signals for detection, and have the functions of receivers and converters.

[0003] When using an electrochemical biosensor, it needs to be installed on a handheld device, but its general installation method is rather cumbersome, causing the user to spend a lot of time installing it. It is less convenient and difficult to operate, resulting in reduced work efficiency. In order to solve the above problems, an electrochemical biosensor for pesticide residue detection needs to be developed urgently. Summary of the invention

[0004] The purpose of the present invention is to provide an electrochemical biosensor for pesticide residue detection, which has the advantage of being easy to install and solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrochemical biosensor for pesticide residue detection, comprising: a support frame, a storage block is fixedly connected to the upper side of the front surface of the support frame, a cavity is opened inside the storage block, a connecting plate is slidably connected to the inner cavity of the cavity, a connecting protrusion is fixedly connected to the rear side of the connecting plate, a spring is sleeved on the surface of the connecting protrusion, the two ends of the spring are respectively fixedly connected to the connecting plate and the storage block, a locking rod is slidably connected to the front side of the inner cavity of the cavity, and the rear end of the locking rod penetrates into the inner cavity of the connecting protrusion. A cavity, the front sides of the connecting plate and the connecting protrusion are each provided with an active groove 1 for use with a locking rod, the surface of the locking rod is provided with a locking groove, the front and rear sides of the inner cavity of the locking groove are both provided with arc surfaces, locking balls are provided on both sides of the inner cavity of the cavity, active grooves 2 for use with locking balls are provided on both sides of the surface of the storage block, the front end of the locking rod passes through the outer side of the storage block and is fixedly connected to an electrochemical biosensor, a push handle is fixedly connected to the back surface of the support frame, and two symmetrically arranged rollers are rotatably connected to both sides of the bottom of the support frame.

[0006] Furthermore, as a preferred embodiment of the present invention, both sides of the front surface of the connecting plate are provided with sliding grooves, the rear side of the inner cavity of the sliding groove is slidably connected with a slider, and the front side of the slider is fixedly connected to a locking ball.

[0007] Furthermore, as a preferred embodiment of the present invention, the locking rod is truncated cone-shaped, and the shape of the connecting protrusion is adapted to the locking rod.

[0008] Furthermore, as a preferred embodiment of the present invention, a fixing frame is fixedly connected to the front side of the surface of the locking rod, and the front side of the fixing frame is fixedly connected to the electrochemical biosensor.

[0009] Furthermore, as a preferred embodiment of the present invention, the connecting plate, the connecting protrusion and the locking rod are all located on the same axis.

[0010] Beneficial effects. The technical solution of the present application has the following technical effects: the present invention achieves the effect of quickly installing the electrochemical biosensor and further improving work efficiency through the coordinated use of a support frame, a storage block, a cavity, a connecting plate, a connecting protrusion, a spring, a locking rod, a movable groove one, a locking groove, a curved surface, a locking ball, a movable groove two, a push handle and a roller, so as to make the electrochemical biosensor used for pesticide residue detection have the advantage of being easy to install. In actual use, by simplifying the installation steps and structure of the electrochemical biosensor, it can be quickly installed, which is not only fast, but also short in construction period and efficient, and does not require the cooperation of multiple people, is highly convenient, and has strong stability, further maintaining the stability of the device installation.

[0011] It should be appreciated that all combinations of the foregoing concepts, as well as additional concepts described in greater detail below, may be considered part of the inventive subject matter of this disclosure, provided such concepts are not mutually inconsistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional schematic diagram of the storage block of the present invention; Figure 3 It is a schematic diagram of the three-dimensional split state of the local structure of the present invention.

[0013] In the figure, the meanings of the various reference numerals are as follows: 1. support frame; 2. storage block; 3. cavity; 4. connecting plate; 5. connecting protrusion; 6. spring; 7. locking rod; 8. movable groove 1; 9. locking groove; 10. arc surface; 11. locking ball; 12. movable groove 2; 13. electrochemical biosensor; 14. push handle; 15. roller; 16. slide groove; 17. slider; 18. fixed frame. Implementation

[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. In order to better understand the technical content of the present invention, specific embodiments are cited and explained in conjunction with the drawings as follows. Various aspects of the present invention are described in this disclosure with reference to the drawings, in which many illustrative embodiments are shown. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0015] As attached Figure 1 To Attachment Figure 3 As shown: This embodiment provides an electrochemical biosensor for pesticide residue detection, comprising: a support frame 1, a storage block 2 is fixedly connected to the upper side of the front surface of the support frame 1, a cavity 3 is opened inside the storage block 2, a connecting plate 4 is slidably connected to the inner cavity of the cavity 3, a connecting protrusion 5 is fixedly connected to the rear side of the connecting plate 4, a spring 6 is sleeved on the surface of the connecting protrusion 5, and the two ends of the spring 6 are respectively fixedly connected to the connecting plate 4 and the storage block 2, a locking rod 7 is slidably connected to the front side of the inner cavity of the cavity 3, the connecting plate 4, the connecting protrusion 5 and the locking rod 7 are all located on the same axis, and the rear end of the locking rod 7 penetrates to the connecting protrusion 5. The inner cavity of the connecting plate 4 and the connecting protrusion 5 are provided with an active groove 8 for use with the locking rod 7 on the front sides, the locking rod 7 is provided with a locking groove 9 on the surface, and the front and rear sides of the inner cavity of the locking groove 9 are provided with arc surfaces 10, locking balls 11 are provided on both sides of the inner cavity of the cavity 3, and active grooves 12 for use with the locking balls 11 are provided on both sides of the surface of the storage block 2, the front end of the locking rod 7 passes through the outside of the storage block 2 and is fixedly connected to an electrochemical biosensor 13, a push handle 14 is fixedly connected to the back surface of the support frame 1, and two symmetrically arranged rollers 15 are rotatably connected to both sides of the bottom of the support frame 1.

[0016] Specifically, both sides of the front surface of the connecting plate 4 are provided with sliding grooves 16 , the rear side of the inner cavity of the sliding groove 16 is slidably connected with a slider 17 , and the front side of the slider 17 is fixedly connected to the locking ball 11 .

[0017] In this embodiment, by using the slide groove 16 and the slider 17 in cooperation, the locking ball 11 is firstly fixed to prevent it from missing connection and floating away in the inner cavity of the cavity 3, and secondly, its movement trajectory is guided.

[0018] Specifically, the locking rod 7 is truncated cone-shaped, and the shape of the connecting protrusion 5 is adapted to the locking rod 7 .

[0019] In this embodiment, the shape of the locking rod 7 is set so that when the locking rod 7 transmits the connecting protrusion 5, the design of the larger upper part and the smaller lower part facilitates the generation of a relative contraction force between the two, thereby completing the compression effect on the spring 6.

[0020] Specifically, a fixing frame 18 is fixedly connected to the front side of the surface of the locking rod 7 , and the front side of the fixing frame 18 is fixedly connected to the electrochemical biosensor 13 .

[0021] In this embodiment, the setting of the fixing frame 18 increases the connection area between the electrochemical biosensor 13 and the locking rod 7 , thereby further enhancing the stability of the electrochemical biosensor 13 .

[0022] The working principle and use process of the present invention are as follows: the user pushes the electrochemical biosensor 13, the fixing frame 18 and the locking rod 7 into the inner cavity of the cavity 3 at the same time. During the inward movement of the locking rod 7, the locking groove 9 continuously contacts the locking balls 11 on both sides and pushes them to both sides. At the same time, through the connection of the slider 17, the connecting plate 4 is also pushed toward the rear side of the inner cavity of the cavity 3. After the locking rod 7 moves to the inner cavity of the movable groove 8, as it contacts the connecting protrusion 5, it drives the connecting plate 4 and the connecting protrusion 5 to move toward the rear side of the inner cavity of the cavity 3, thereby squeezing the spring 6 and making it contracted, waiting to be locked. After the stop rod 7 moves to the innermost side of the movable groove 8, the locking groove 9 moves to one side of the locking ball 11. At this time, the locking rod 7 is released again. Since the spring 6 lacks locking, it rebounds to its original position, thereby pushing the connecting protrusion 5 and the connecting plate 4 back to their original positions, so that the locking ball 11 is reset and slides into the inner cavity of the locking groove 9 with the cooperation of the inclined surface 10, completing the installation between the electrochemical biosensor 13 and the placement block 2. Then, the user can use the push handle 14 and the roller 15 to move the electrochemical biosensor 13 to the agricultural testing base to detect pesticide residues in plants.

[0023] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0024] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. An electrochemical biosensor for pesticide residue detection, comprising: A support frame (1), characterized in that: a storage block (2) is fixedly connected to the upper side of the front surface of the support frame (1), a cavity (3) is provided inside the storage block (2), a connecting plate (4) is slidably connected to the inner cavity of the cavity (3), a connecting protrusion (5) is fixedly connected to the rear side of the connecting plate (4), a spring (6) is sleeved on the surface of the connecting protrusion (5), the two ends of the spring (6) are respectively fixedly connected to the connecting plate (4) and the storage block (2), a locking rod (7) is slidably connected to the front side of the inner cavity of the cavity (3), the rear end of the locking rod (7) passes through the inner cavity of the connecting protrusion (5), and the front sides of the connecting plate (4) and the connecting protrusion (5) are both provided with A movable groove (8) for use with a locking rod (7); a locking groove (9) is provided on the surface of the locking rod (7); the front and rear sides of the inner cavity of the locking groove (9) are provided with arc surfaces (10); locking balls (11) are provided on both sides of the inner cavity of the cavity (3); movable grooves (12) for use with the locking balls (11) are provided on both sides of the surface of the storage block (2); the front end of the locking rod (7) penetrates to the outside of the storage block (2) and is fixedly connected to an electrochemical biosensor (13); a push handle (14) is fixedly connected to the back surface of the support frame (1); and two symmetrically arranged rollers (15) are rotatably connected to both sides of the bottom of the support frame (1).

2. The electrochemical biosensor for pesticide residue detection according to claim 1, characterized in that: Slide grooves (16) are provided on both sides of the front surface of the connecting plate (4), a slider (17) is slidably connected to the rear side of the inner cavity of the slide groove (16), and the front side of the slider (17) is fixedly connected to the locking ball (11).

3. The electrochemical biosensor for pesticide residue detection according to claim 1, characterized in that: The locking rod (7) is in the shape of a truncated cone, and the shape of the connecting protrusion (5) is compatible with the locking rod (7).

4. The electrochemical biosensor for pesticide residue detection according to claim 1, characterized in that: A fixing frame (18) is fixedly connected to the front side of the surface of the locking rod (7), and the front side of the fixing frame (18) is fixedly connected to the electrochemical biosensor (13).

5. The electrochemical biosensor for pesticide residue detection according to claim 1, characterized in that: The connecting plate (4), the connecting protrusion (5) and the locking rod (7) are all located on the same axis.

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