Device for testing cold resistance of plant branches

Abstract

The utility model discloses a plant branch cold resistance testing device, which relates to the technical field of plant cold resistance testing and comprises a placing frame, a plurality of placing main bodies for testing are arranged in the placing frame at equal intervals in a sliding manner, and a support frame plate and an upper cover plate which are fixedly connected are arranged in each placing main body. Limiting grooves are formed in the upper surface of the supporting frame frame plate at equal intervals, protruding semiconductor chilling plates are installed in the limiting grooves in a limiting mode, placing grooves communicating with one another are formed in the surface of the upper cover plate in a penetrating mode, and a temperature sensor is fixedly installed on the upper surface of the center of the upper cover plate. The side surface of one side of the upper cover plate is fixedly provided with a wiring terminal used for being electrically connected with the semiconductor chilling plate and the temperature sensor, fastening sliding pieces used for fastening the head and tail ends of the plant branches are symmetrically arranged between the notches in a sliding mode, springs are correspondingly welded between the fastening sliding pieces and the side walls of the notches, and cold-proof cotton is connected to the inner surfaces of the fastening sliding pieces in an attached mode. The device has the effects of ensuring convenient placement and fastening for testing.

Description

Technical Field

[0001] The utility model relates to the technical field of plant cold resistance performance testing, in particular to a plant branch cold resistance performance testing device. Background Art

[0002] Plant cold resistance research is an important part of plant stress resistance research. Studying plant morphological structure and physiological and biochemical characteristics, correctly identifying and testing plant cold resistance can provide basic data and reference for further metabolomics, hybrid breeding and transgenic breeding of new cold-resistant varieties, which is of great significance for species protection and breeding of improved varieties. The main principle of detecting the cold resistance of plant branches is to detect the heat release of plant branches before they die due to low temperature, causing a temperature difference on both sides of the semiconductor refrigeration chip, and then generating a voltage difference at the two output ends of the semiconductor refrigeration chip according to the Peltier effect.

[0003] At present, the method for testing the cold resistance of plant branches is often to place the plant branches on the semiconductor cooling plate of the test device and then stabilize them with tape. It is worth noting that this stabilization method is not only inconvenient, but also produces a large number of disposable consumables, increasing the cost of the test. Utility Model Content

[0004] The purpose of the utility model is to provide a device for testing the cold resistance of plant branches, which solves the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plant branch cold resistance performance test device, comprising a placement rack, in which a plurality of placement bodies for testing are equidistantly slidably placed, the placement bodies comprising a support frame plate and an upper cover plate fixedly connected, the upper surface of the support frame plate is provided with limit grooves equidistantly, and a raised semiconductor refrigeration plate is limitedly installed in the limit grooves, the upper cover plate is fixedly arranged on the upper surface of the support frame plate, the surface of the upper cover plate is provided with placement grooves interconnected with each other, and the placement grooves are correspondingly clamped around the raised area of ​​the semiconductor refrigeration plate, a temperature sensor is fixedly installed on the central upper surface of the upper cover plate, and a wiring terminal for electrically connecting the semiconductor refrigeration plate and the temperature sensor is fixedly installed on one side surface of the upper cover plate;

[0006] Slots are provided on the upper surfaces of both ends of the upper cover plate and connected to the placement grooves, and fastening slides for fastening the head and tail ends of plant branches are symmetrically slidably provided in front of the slots, and a third slide groove for sliding connection of the fastening slide is symmetrically provided on the upper slot surface of the slot, and springs are correspondingly welded between the fastening slide and the side walls of the slot, and the inner surface of the fastening slide is fitted with cold-proof cotton.

[0007] Optionally, the symmetrical surface of the placement rack is equidistantly provided with first sliding grooves for the placement body to slide, a sliding plug plate is slidably connected in the first sliding groove, and the sliding plug plate is fixedly connected to the two side surfaces of the placement body.

[0008] Optionally, a side surface of the placement rack is provided with second sliding grooves at equal intervals, and the second sliding grooves are used for sliding of the wiring terminals.

[0009] Optionally, a handle for easy sliding is fixedly connected to one side surface of the support frame plate.

[0010] Optionally, a replaceable porous ventilation plate is slidably connected in the lower end opening of the support frame plate.

[0011] Optionally, ventilation holes for ventilation are equidistantly provided on multiple surfaces of the support frame plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model uses the fastening slide that is slidably connected to the grooves at both ends of the upper cover plate, so that the tester can flexibly pass the sliding fastening slide at the head and tail ends of the plant branch to complete the fastening and placement of plant branches of different circumference sizes, and the fastening slide that fastens the head and tail ends of the plant branch will be tightly resisted by the cold-proof cotton, avoiding the phenomenon that the plant branch is damaged and broken due to the conflict between the cold air of the cold resistance performance test and the fastening resistance of the fastening slide. The head and tail ends of the plant branch have the purpose of cold resistance and fastening and buffering, and the operation method is simple and the use is longer, thereby ensuring the convenient placement and fastening effect of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the structure of the utility model;

[0015] Figure 2 It is a front cross-sectional view of the structure of the utility model;

[0016] Figure 3 It is an enlarged schematic diagram of the placement rack in the structure of the utility model;

[0017] Figure 4 It is an enlarged schematic diagram of the structure of placing the main body in the utility model;

[0018] Figure 5 The utility model structure Figure 4 A magnified schematic diagram of center A.

[0019] In the figure: 1-placing rack, 2-first slide slot, 3-second slide slot, 4-placing body, 5-support frame plate, 6-slide plate, 7-limiting slot, 8-semiconductor refrigeration plate, 9-handle, 10-porous ventilation plate, 11-upper cover, 12-placing slot, 13-connecting terminal, 14-ventilation hole, 15-temperature sensor, 16-notch, 17-third slide slot, 18-fastening slide, 19-spring, 20-cold-proof cotton. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] For examples, see Figures 1 to 5 The utility model provides a technical solution: a plant branch cold resistance performance test device, comprising a placing frame 1, in which a plurality of placing bodies 4 for testing are equidistantly slidably placed, the placing body 4 comprises a fixedly connected support frame plate 5 and an upper cover plate 11, the upper surface of the support frame plate 5 is provided with limit grooves 7 equidistantly, and a raised semiconductor cooling plate 8 is limitedly installed in the limit groove 7, the upper cover plate 11 is fixedly covered on the upper surface of the support frame plate 5, the surface of the upper cover plate 11 is provided with mutually connected placing grooves 12, and the placing grooves 12 are correspondingly clamped on the raised circle of the semiconductor cooling plate 8, the central upper surface of the upper cover plate 11 is fixedly installed with a temperature sensor 15, and one side surface of the upper cover plate 11 is fixedly installed with a wiring terminal 13 for electrically connecting the semiconductor cooling plate 8 and the temperature sensor 15;

[0022] Slots 16 are provided on the upper surfaces of both ends of the upper cover plate 11 and connected to the placement groove 12. Fastening slides 18 for fastening the head and tail ends of plant branches are symmetrically slidably provided between the slots 16, and a third slide groove 17 for sliding connection of the fastening slide 18 is symmetrically provided on the upper slot surface of the slot 16. Springs 19 are correspondingly welded between the fastening slide 18 and the side walls of the slot 16, and the inner surface of the fastening slide 18 is fitted with cold-proof cotton 20.

[0023] A replaceable porous ventilation plate 10 is slidably connected in the lower end opening of the support frame plate 5, and ventilation holes 14 for ventilation are equidistantly provided on multiple surfaces of the support frame plate 5.

[0024] In this embodiment, the tester can flexibly pass the head and tail ends of the plant branches through the sliding fastening slide 18 to complete the fastening and placement of plant branches of different circumferences. Specifically, when the head and tail ends of the plant branches are fastened, the fastening slide 18 in the notch 16 will be driven to slide a corresponding length in the third slide groove 17 until the fastening slide 18 fastens the head and tail ends of the plant branches, and the spring 19 will be compressed according to the sliding of the fastening slide 18 and provide a certain fastening pressure for the fastening. Subsequently, the corresponding plant branch is placed on the upper cover plate 1 1, they will all be fitted and interfered with the semiconductor cooling sheet 8 in the limiting groove 7. Then, the tester can slide the placement body 4 into the placement rack 1 one by one, start the semiconductor cooling sheet 8 and the temperature sensor 15, and test the cold resistance of the plant branches. The terminal 13 will directly transmit the test results of the semiconductor cooling sheet 8 and the temperature sensor 15 to the background computer. When the semiconductor cooling sheet 8 is tested for cold resistance, the porous ventilation plate 10 and the ventilation holes 14 can ensure the ventilation of the test.

[0025] The fastening slide 18 that fastens the head and tail ends of the plant branches will be tightly contacted by the cold-proof cotton 20, avoiding the damage and breakage of the plant branches due to the conflict between the cold air of the cold resistance performance test and the fastening contact of the fastening slide 18. It has the purpose of cold resistance and fastening and buffering for the head and tail ends of the plant branches, and the operation is simple and the use is longer, thereby ensuring the convenient placement and fastening effect of the test.

[0026] In addition, the semiconductor cooling sheet 8 and the temperature sensor 15 are both existing mature technologies and are used in the test of the cold resistance of plant branches.

[0027] Furthermore, the symmetrical surface of the placement rack 1 is equidistantly provided with first slide grooves 2 for the placement body 4 to slide, and a sliding plug plate 6 is slidably connected in the first slide groove 2, and the sliding plug plate 6 is fixedly connected to the two side surfaces of the placement body 4, and a second slide groove 3 is equidistantly provided on one side surface of the placement rack 1, and the second slide groove 3 is used for the sliding of the terminal block 13, and a handle 9 for convenient sliding is fixedly connected to one side surface of the support frame plate 5.

[0028] It is worth noting that the tester can slide the placement body 4 flexibly into or out of the placement rack 1 through the handle 9 , and the placement body 4 drives the sliding plate 6 to slide in the first slide groove 2 , while the second slide groove 3 is for facilitating the barrier-free sliding movement of the terminal block 13 .

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plant branch cold resistance testing device, comprising a placing frame (1), characterized in that: A plurality of placement bodies (4) for testing are equidistantly slidably placed in the placement rack (1), the placement body (4) comprising a support frame plate (5) and an upper cover plate (11) which are fixedly connected, the upper surface of the support frame plate (5) being provided with limit grooves (7) at equal intervals, a raised semiconductor cooling plate (8) being limitedly installed in the limit grooves (7), the upper cover plate (11) being fixedly covered on the upper surface of the support frame plate (5), the surface of the upper cover plate (11) being provided with placement grooves (12) which are interconnected, and the placement grooves (12) being correspondingly clamped around the raised area of ​​the semiconductor cooling plate (8), the central upper surface of the upper cover plate (11) being fixedly installed with a temperature sensor (15), and a connection terminal (13) for electrically connecting the semiconductor cooling plate (8) and the temperature sensor (15) being fixedly installed on one side surface of the upper cover plate (11); Notches (16) are provided on the upper surfaces of both ends of the upper cover plate (11) and are connected to the placement groove (12); fastening slides (18) for fastening the head and tail ends of plant branches are symmetrically slidably provided between the notches (16); and a third slide groove (17) for sliding connection of the fastening slide (18) is symmetrically provided on the upper groove surface of the notch (16); springs (19) are correspondingly welded between the fastening slide (18) and the side wall of the notch (16); and cold-proof cotton (20) is fitted and connected to the inner surface of the fastening slide (18).

2. A plant branch cold resistance testing device according to claim 1, characterized in that: The symmetrical surface of the placement rack (1) is provided with first sliding grooves (2) for the placement body (4) to slide at equal intervals, a sliding plate (6) is slidably connected in the first sliding groove (2), and the sliding plate (6) is fixedly connected to the two side surfaces of the placement body (4).

3. A plant branch cold resistance testing device according to claim 2, characterized in that: Second sliding grooves (3) are equidistantly provided on one side surface of the placement rack (1), and the second sliding grooves (3) are used for the sliding of the connection terminals (13).

4. A plant branch cold resistance testing device according to claim 3, characterized in that: A handle (9) that facilitates sliding is fixedly connected to one side surface of the support frame plate (5).

5. A plant branch cold resistance testing device according to claim 1, characterized in that: A replaceable porous ventilation plate (10) is slidably connected in the lower end opening of the support frame plate (5).

6. A plant branch cold resistance testing device according to claim 5, characterized in that: Ventilation holes (14) for ventilation are equidistantly provided on multiple surfaces of the support frame plate (5).

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