Handheld sample information machine

Abstract

The invention relates to the technical field of information acquisition devices, in particular to a handheld sample information machine which comprises an ink-jet printer body, a display screen and an ink-jet nozzle are mounted on the outer side of the ink-jet printer body, and a positioning assembly used for positioning the ink-jet position of a packaging carton is mounted on the outer side of the ink-jet printer body; the positioning assembly comprises a transverse frame with one end movably penetrating through the ink-jet printer body, the top of the transverse frame is provided with a ventilation groove penetrating through the transverse frame, one side of the transverse frame is open, one end of the transverse frame is provided with a sealing plug movably penetrating into the transverse frame, and one side of the ink-jet printer body is provided with a separation assembly used for separating the internal space of the transverse frame. The end, away from the sealing plug, of the transverse frame is fixedly connected with a spring, the partition assembly comprises a partition plate slidably connected with the inner wall of the transverse frame, and a sliding block is arranged on one side of the partition plate. The problems that the packaging carton in the moving process is difficult to position, and the dislocation degree of sample information code spraying is reduced are solved.

Description

Technical Field

[0001] The invention relates to the technical field of information collection devices, in particular to a handheld sample information machine. Background Art

[0002] In daily testing and sampling, samplers will encounter various types of samples and need to fill out sample information forms or indicate sample information on the samples.

[0003] After searching, the patent with application number CN201720979625.6 discloses a handheld terminal for collecting sample information. The central processor standardizes the sample information to form an electronic label corresponding to the sample, which can be printed out to avoid damage or invalidation of the collected information.

[0004] However, the above-mentioned device needs to collect information of a large number of samples, and then spray the information labels onto the packaging cartons moving on the conveyor belt. The handheld sample collection device is difficult to keep synchronized with the packaging cartons on the conveyor belt, and it is not convenient to position the cartons, resulting in inconsistent positions of the codes on the cartons. It is easy to have a large degree of misalignment of the coding positions. When it is necessary to read the information on a large number of packaging cartons, it is also necessary to find the position of the coding, which increases the difficulty of reading the information. Therefore, a device is needed that can position the packaging cartons in motion and reduce the degree of misalignment of the sample information coding. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a handheld sample information machine, which solves the problem of difficulty in positioning the packaging carton during movement and reduces the degree of misalignment of the sample information coding.

[0006] To achieve the above object, the present invention provides the following technical solution: a handheld sample information machine, comprising a printer body, a display screen and a printer port are installed on the outside of the printer body, and a positioning component for locating the printer position of a packaging carton is installed on the outside of the printer body;

[0007] The positioning component includes a transverse frame with one end movably penetrating the main body of the inkjet printer, a ventilation groove penetrating the transverse frame is provided on the top of the transverse frame, one side of the transverse frame is open, and a sealing plug movably penetrating into the interior of the transverse frame is provided at one end of the transverse frame, a partition component for partitioning the internal space of the transverse frame is provided on one side of the inkjet printer main body, and a spring is fixedly connected to the end of the transverse frame away from the sealing plug.

[0008] Preferably, the partition assembly includes a partition plate slidably connected to the inner wall of the transverse frame, a slider with one end movably extending to the outside of the transverse frame is provided on one side of the partition plate, an end of the slider away from the partition plate is fixedly connected to a mounting plate, and one side of the mounting plate is connected to a first bolt for fixing it to the inkjet printer body.

[0009] Preferably, a bracket is fixedly connected to one side of the partition plate close to the sealing plug, and a rotating rod with both ends movably extending to the outside of the bracket is provided between the two sides of the bracket, a rubber wheel that is tightly pressed against the inner wall of the transverse frame is fixedly connected to the middle of the rotating rod, and cleaning wheels for cleaning dust at the bottom of the inner side of the transverse frame are fixedly connected to both ends of the rotating rod.

[0010] Preferably, a material holding box with one end movably extending into the interior of the transverse frame is disposed at the bottom of the transverse frame, and arc-shaped plates are fixedly connected to both sides of the material holding box.

[0011] Preferably, a winding box with an opening on one side is fixedly connected to one side of the inkjet printer body, a winding rod is rotatably connected between the two sides of the inner wall of the winding box, a torsion spring is fixedly connected between the bottom of the winding rod and the winding box, a plastic film for covering the opening at one end of the transverse frame is fixedly connected to the outer side of the winding rod, and a circular plate fixed to the winding rod is installed between the plastic film and the torsion spring.

[0012] Preferably, a clamping plate for fixing the plastic film on the transverse frame is provided at one end of the transverse frame away from the sealing plug, and a second bolt with one end movably extending into the interior of the transverse frame is provided at both ends of the clamping plate, and a through hole matching the second bolt is provided on the clamping plate, and a guide rod for guiding the moving direction of the plastic film is fixedly connected to one side of the inkjet printer body.

[0013] Preferably, a dehumidification component for reducing the water content in the air inside the printer is installed on the top of the printer body, and the dehumidification component includes a sealing cover with one end extending into the interior of the printer body and connected to the air-permeable groove of the transverse frame, and cross bars are fixedly connected to both sides of the inner wall of the sealing cover, a water storage box is fixedly connected between the two cross bars, a metal rod is fixedly connected between the water storage box and the sealing cover, and a plurality of inclined fins are fixedly connected to one end of the top of the metal rod.

[0014] Preferably, the bottom of the water storage box is connected with a hose, one end of which movably extends to the outside of the sealing cover, and one end of the transverse frame close to the sealing plug is connected with a docking tube adapted to the hose.

[0015] Compared with the prior art, the present invention provides a handheld sample information machine, which has the following beneficial effects:

[0016] 1. Through the positioning component, the packaging carton can be positioned during movement, reducing the misalignment of the sample information coding and making it easier to view the sample information on the packaging carton.

[0017] 2. By setting up the partition components and locating the coding position, the dust content in the surrounding air is reduced, and the air quality of the working environment is optimized.

[0018] 3. The dehumidification component can reduce the heat during the working process of the printer body, keep the printer body working stably, reduce the water content of the air inside the printer body, and reduce the possibility of rusting of the internal parts of the printer body in a humid environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the positioning assembly of the present invention;

[0022] Figure 3 A partial cross-sectional view of a positioning assembly of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the separation component of the present invention;

[0024] Figure 5 A partial cross-sectional view of the dehumidification assembly of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the winding box and the clamping plate of the present invention;

[0026] Figure 7 It is a partial cross-sectional view of the winding box and the clamping plate of the present invention.

[0027] In the figure: 1. Inkjet printer body; 2. Positioning assembly; 21. Horizontal frame; 22. Sealing plug; 23. Partition assembly; 231. Partition plate; 232. Slider; 233. Mounting plate; 234. First bolt; 24. Spring; 3. Bracket; 4. Rotating rod; 5. Rubber wheel; 6. Cleaning wheel; 7. Material box; 8. Arc plate; 9. Winding box; 10. Winding rod; 11. Torsion spring; 12. Plastic film; 13. Round plate; 14. Clamp; 15. Second bolt; 16. Guide rod; 17. Dehumidification assembly; 171. Sealing cover; 172. Cross bar; 173. Water storage box; 174. Metal rod; 175. Inclined fin; 18. Hose; 19. Butt pipe. DETAILED DESCRIPTION

[0028] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0029] Embodiment 1

[0030] Figure 1-Figure 4 As one embodiment of the present invention, a handheld sample information machine includes a printer body 1, a display screen and a printer port are installed on the outside of the printer body 1, a positioning component 2 for locating the printer position of a packaging carton is installed on the outside of the printer body 1, and the cartons of packaging samples are transported by a belt conveyor. The printer body 1 pre-sets the format of information entry, and the staff enters the sample information from the display screen on one side of the printer body 1, and then moves the printer body 1 to the front of the packaging carton, puts the sample into the packaging carton, and locates the printer position of the packaging carton moving on the belt conveyor through the positioning component 2. The printer port sprays product information on the packaging carton and generates a QR code, which can be scanned by a dedicated QR code query software for a mobile phone to display the complete sample information, which is convenient and fast for batch labeling of sample information with a low error rate.

[0031] The positioning component 2 includes a transverse frame 21 with one end movably passing through the printer body 1, a ventilation groove passing through the transverse frame 21 is provided on the top of the transverse frame 21, and one side of the transverse frame 21 is open. A sealing plug 22 movably passing through the inside thereof is provided at one end of the transverse frame 21, and a partition component 23 for partitioning the internal space of the transverse frame 21 is provided on one side of the printer body 1. A spring 24 is fixedly connected to the end of the transverse frame 21 away from the sealing plug 22, and the sealing plug 22 is pressed toward the inside of the transverse frame 21 to improve the firmness of the connection between the sealing plug 22 and the transverse frame 21. After the information of the sample is entered into the printer body 1 from the display screen, the staff holds the bottom of the printer body 1 and moves the printer body 1 close to the packaging carton on the belt conveyor, and puts the sample into the packaging carton. The packaging carton pushes the sealing plug 22 to move during the transportation by the belt conveyor, thereby driving the transverse frame 21 to move. In the process of the transverse frame moving toward the sealing plug 22, the spring 24 is pushed The spring 24 squeezes the partition component 23, and the spring 24 is squeezed and contracted. As the packaging carton pushes the transverse frame 21 to squeeze the spring 24, the degree of contraction increases, and finally the elastic force of the spring 24 exceeds the friction between the packaging carton and the belt conveyor. The packaging carton is blocked by the sealing plug 22 and the speed of the belt conveyor begins to decrease, resulting in relative movement between the packaging carton and the belt conveyor. At this time, the staff controls the inkjet printer body 1 to spray code on the packaging carton from the coding port. After the coding is completed, the inkjet printer body 1 is moved away from the packaging carton. The packaging carton is no longer blocked by the sealing plug 22 and continues to move with the belt conveyor. The spring 24 pushes the transverse frame 21 to the starting point in the direction away from the sealing plug 22, and repeats this process to complete the coding process on the surface of the packaging carton transported on the belt conveyor. The packaging carton in the movement process can be positioned, the degree of misalignment of the sample information coding is reduced, and the sample information on the packaging carton is convenient to view.

[0032] When the sealing plug 22 blocks the packaging carton on the belt conveyor, the packaging carton pushes the sealing plug 22 and the transverse frame 21 to squeeze the spring 24. When the degree of squeezing of the spring 24 increases, the force pushing the transverse frame 21 and the sealing plug 22 to block the packaging carton also gradually increases. When positioning the coding position of the packaging carton, the force of blocking the packaging carton can be controlled to increase gradually from small to large, thereby reducing the collision force between the packaging carton and the moving packaging carton when positioning the packaging carton, thereby reducing damage to the packaging carton.

[0033] The partition assembly 23 includes a partition plate 231 slidably connected to the inner wall of the transverse frame 21, a slider 232 with one end movably extending to the outside of the transverse frame 21 is provided on one side of the partition plate 231, and a mounting plate 233 is fixedly connected to one end of the slider 232 away from the partition plate 231, and a first bolt 234 for fixing the mounting plate 233 to the printer body 1 is connected to one side of the mounting plate 233. When the partition assembly 23 is installed inside the transverse frame 21, the sealing plug 22 is first taken out from the inside of the transverse frame 21, and then the sealing plug 22 is removed from the transverse frame 21. Insert the partition plate 231 into the interior of the transverse frame 21 through the opening of the transverse frame 21, push the partition plate 231 to slide along the inner wall of the transverse frame 21 until the mounting plate 233 is pressed against the printer body 1, turn the first bolt 234, the first bolt 234 moves toward the printer body 1, until the first bolt 234 enters the interior of the printer body 1, fix the mounting plate 233 on the printer body 1, and then insert the sealing plug 22 into the interior of the transverse frame 21. When the packaging carton moving on the belt conveyor pushes the transverse frame 21 to move, the interior of the transverse frame 21 is located The space between the partition plate 231 and the sealing plug 22 gradually increases, resulting in a decrease in the air pressure in this area. The air outside the transverse frame 21 enters the area inside the transverse frame 21 between the partition plate 231 and the sealing plug 22 due to the air pressure difference. Since cartons are prone to produce debris, it is easy to cause a high dust content in the air in the working area. When the air enters the transverse frame 21, part of the dust enters the transverse frame 21 with the air until the printer body 1 is moved away from the packaging carton after the inkjet printer is finished. After there is no packaging carton to push the sealing plug 22 and the transverse frame 21, the spring 24 pushes the transverse frame 21 to move to the starting point. At this time, the space inside the transverse frame 21 between the partition plate 231 and the sealing plug 22 is reduced, and the air inside the transverse frame 21 between the partition plate 231 and the sealing plug 22 is pushed to the outside of the transverse frame 21. As the air enters the transverse frame 21, part of the dust moves to the outside of the transverse frame 21 with the air, and part of it settles at the bottom of the transverse frame 21. The process of positioning the inkjet printer position reduces the dust content in the surrounding air, and optimizes the air quality of the working environment.

[0034] A bracket 3 is fixedly connected to one side of the partition plate 231 close to the sealing plug 22, and a rotating rod 4 with both ends movably extending to the outside of the bracket 3 is provided between the two sides of the bracket 3. A rubber wheel 5 that is tightly pressed against the inner wall of the transverse frame 21 is fixedly connected to the middle of the rotating rod 4, and cleaning wheels 6 for cleaning dust at the bottom of the inner side of the transverse frame 21 are fixedly connected to both ends of the rotating rod 4. A material box 7 with one end movably extending to the inside of the transverse frame 21 is provided at the bottom of the transverse frame 21, and arc plates 8 are fixedly connected to both sides of the material box 7. In the process of the packaging carton on the belt conveyor pushing the sealing plug 22 and the transverse frame 21 to move, the transverse frame 21 moves in the direction of the sealing plug 22, and the partition plate 231 moves relative to the transverse frame 21, driving the rubber wheel 5 to move along the transverse frame 21. It rolls toward the inner bottom of the frame 21, thereby driving the cleaning wheel 6 to move along the bottom of the transverse frame 21, and the dust in the air enters the area between the partition plate 231 and the sealing plug 22 from the opening of the transverse frame 21. When the printer body 1 is moved away from the packaging carton after the inkjet printer is finished, the spring 24 pushes the transverse frame 21 to move toward the initial point, and the cleaning wheel 6 pushes the dust inside the transverse frame 21 to move toward the sealing plug 22. Finally, the dust between the partition plate 231 and the sealing plug 22 falls into the material box 7. The probability that the dust entering the material box 7 is carried to the outside of the transverse frame 21 by the air flowing inside the transverse frame 21 is reduced, so that a larger amount of dust in the air can be collected, thereby improving the ability to remove dust from the surrounding environment.

[0035] When there is a large amount of dust inside the material box 7, the arc plate 8 is pressed from the bottom to drive the material box 7 to move downward to the bottom of the transverse frame 21 until the material box 7 is completely moved to the outside of the transverse frame 21, and the dust inside the material box 7 is poured out. Then, the material box 7 is pushed back into the transverse frame 21. The arc plate 8 facilitates the removal of the material box 7 from the inside of the transverse frame 21, and facilitates the collection of dust in the surrounding environment for centralized treatment.

[0036] Embodiment 2

[0037] Reference Figure 1-Figure 7On the basis of the first embodiment, a winding box 9 with an opening on one side is fixedly connected to one side of the inkjet printer body 1, and a winding rod 10 is rotatably connected between the two sides of the inner wall of the winding box 9, and a torsion spring 11 is fixedly connected between the bottom of the winding rod 10 and the winding box 9. A plastic film 12 for covering the opening at one end of the transverse frame 21 is fixedly connected to the outer side of the winding rod 10, and a circular plate 13 fixed to the winding rod 10 is installed between the plastic film 12 and the torsion spring 11. After the plastic film 12 is pulled out of the winding box 9, it is fixed to the end of the transverse frame 21 away from the sealing plug 22. After the opening at the end of the transverse frame 21 away from the sealing plug 22 is covered by the plastic film 12, dust cannot enter, which can prevent dust in the surrounding environment from entering the end of the transverse frame 21 away from the sealing plug 22, To prevent dust from adhering to the spring 24 and the inner wall of the transverse frame 21 and becoming difficult to clean, when the packaging carton on the belt conveyor pushes the transverse frame 21 to move toward the sealing plug 22, the distance between the end of the transverse frame 21 away from the sealing plug 22 and the winding box 9 is shortened, and the torsion spring 11 drives the winding rod 10 to rotate and winds the plastic film 12 on the winding rod 10. When the spring 24 pushes the transverse frame 21 to move toward the starting point, the distance between the end of the transverse frame 21 away from the sealing plug 22 and the winding box 9 increases, and the plastic film 12 pulls the winding rod 10 to rotate and drives the torsion spring 11 to twist, and the plastic film 12 on the winding rod 10 is pulled to move in the direction away from the inkjet printer body 1, keeping the plastic film 12 always covering the opening of the end of the transverse frame 21 away from the sealing plug 22.

[0038] A clamping plate 14 for fixing the plastic film 12 on the transverse frame 21 is provided at one end of the transverse frame 21 away from the sealing plug 22, and second bolts 15 are provided at both ends of the clamping plate 14, one end of which is movably extended to the inside of the transverse frame 21, and a through hole compatible with the second bolt 15 is opened on the clamping plate 14. A guide rod 16 for guiding the moving direction of the plastic film 12 is fixedly connected to one side of the inkjet printer body 1. The second bolt 15 is rotated away from the transverse frame 21 to drive the clamping plate 14 away from the transverse frame 21, and the end of the plastic film 12 away from the winding box 9 is extended into the gap between the clamping plate 14 and the transverse frame 21. Then, the second bolt 15 is rotated to enter the inside of the transverse frame 21, driving the clamping plate 14 to squeeze the plastic film 12, and fixing the plastic film 12 on the transverse frame 21, so as to facilitate the fixing of the plastic film 12.

[0039] A dehumidification component 17 for reducing the water content in the air inside the printer is installed on the top of the printer body 1. The dehumidification component 17 includes a sealing cover 171 with one end extending into the interior of the printer body 1 and connected to the ventilation groove of the transverse frame 21. Both sides of the inner wall of the sealing cover 171 are fixedly connected with cross bars 172, and a water storage box 173 is fixedly connected between the two cross bars 172. A metal rod 174 is fixedly connected between the water storage box 173 and the sealing cover 171. A plurality of inclined fins 175 are fixedly connected to one end of the top of the metal rod 174. The ventilation groove of the transverse frame 21 is always located inside the printer body 1 during the movement of the transverse frame 21. The heat generated during the operation of the printer body 1 increases the air temperature inside the printer body. After the temperature increases, the air enters the sealing cover 171 and comes into contact with the metal with a lower temperature. The rod 174 is in contact with the inclined fin 175. The air is cooled while the moisture inside it condenses on the surface of the metal rod 174 and the inclined fin 175. The condensed water droplets slide along the inclined fin 175 and the metal rod 174 into the water storage box 173. The metal rod 174 and the inclined fin 175 have a fast heat dissipation speed and are far away from the printer body 1. The surface temperature is lower than the temperature inside the printer body 1. The heat generated during the operation of the printer body 1 can be cooled as the air moves around the metal rod 174 and the inclined fin 175, which can reduce the heat of the printer body 1 during operation and keep the printer body 1 working stably. At the same time, the water content of the air inside the printer body 1 is reduced, reducing the possibility of rusting of internal parts of the printer body 1 in a humid environment.

[0040] The bottom of the water storage box 173 is connected with a hose 18, one end of the hose 18 is movably extended to the outside of the sealing cover 171, and the end of the transverse frame 21 near the sealing plug 22 is connected with a butt joint 19 that matches the hose 18. Usually, a rubber plug is used to block the hose 18 and the butt joint 19. The rubber plugs inside the hose 18 and the butt joint 19 are taken out at intervals, and then the hose 18 is put on the outside of the butt joint 19. The water condensed inside the water storage box 173 flows along the hose 18 and the butt joint 19 into the transverse frame 21 to flush the dust inside the transverse frame 21, while increasing the humidity inside the transverse frame 21 and reducing the possibility of dust inside the transverse frame 21 being driven by the air. The air flowing inside the transverse frame 21 passes through The butt joint 19 and the hose 18 flow into the interior of the sealing cover 171, increasing the flow rate of the air around the sealing cover 171, the metal rod 174 and the inclined fins 175, and accelerating the volatilization rate of the moisture on the surface of the sealing cover 171, the metal rod 174 and the inclined fins 175, so that the air with a high air content is brought out from the hose 18 to the outside of the printer body 1, and then the hose 18 is unplugged from the butt joint 19, and the rubber plug is used again to plug the hose 18 and the butt joint 19, which can drain the water generated by condensation inside the printer body 1 and accelerate the volatilization of the condensed water. The air with a high water content caused by the volatilization of the condensed water is discharged, and the condensed water inside the printer body 1 is prevented from falling onto the internal parts, thereby improving the dehumidification effect of the printer body 1.

[0041] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] 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 handheld sample information machine, comprising a printer body (1), a display screen and a printer port being installed on the outer side of the printer body (1), characterized in that: A positioning component (2) for positioning the coding position of the packaging carton is installed on the outer side of the inkjet printer body (1); The positioning assembly (2) comprises a transverse frame (21) with one end movably penetrating the printer body (1); a ventilation groove penetrating the transverse frame (21) is provided at the top of the transverse frame (21); one side of the transverse frame (21) is open; a sealing plug (22) movably penetrating the interior of the transverse frame (21) is provided at one end of the transverse frame (21); a partition assembly (23) for partitioning the internal space of the transverse frame (21) is provided at one side of the printer body (1); and a spring (24) is fixedly connected to one end of the transverse frame (21) away from the sealing plug (22).

2. A handheld sample information machine according to claim 1, characterized in that: The partition assembly (23) comprises a partition plate (231) slidably connected to the inner wall of the transverse frame (21); a slider (232) having one end movably extending to the outside of the transverse frame (21) is provided on one side of the partition plate (231); an end of the slider (232) away from the partition plate (231) is fixedly connected to a mounting plate (233); and a first bolt (234) for fixing the mounting plate (233) to the inkjet printer body (1) is connected to one side of the mounting plate (233).

3. A handheld sample information machine according to claim 2, characterized in that: A bracket (3) is fixedly connected to one side of the partition plate (231) close to the sealing plug (22); a rotating rod (4) is provided between the two sides of the bracket (3) and both ends of the rotating rod (4) are movably extended to the outside of the bracket (3); a rubber wheel (5) pressed against the inner wall of the transverse frame (21) is fixedly connected to the middle of the rotating rod (4); and cleaning wheels (6) for cleaning dust at the bottom of the inner side of the transverse frame (21) are fixedly connected to both ends of the rotating rod (4).

4. A handheld sample information machine according to claim 1, characterized in that: A material holding box (7) having one end movably extending into the interior of the transverse frame (21) is disposed at the bottom of the transverse frame (21), and arc-shaped plates (8) are fixedly connected to both sides of the material holding box (7).

5. A handheld sample information machine according to claim 1, characterized in that: A winding box (9) with an opening on one side is fixedly connected to one side of the inkjet printer body (1); a winding rod (10) is rotatably connected between the two sides of the inner wall of the winding box (9); a torsion spring (11) is fixedly connected between the bottom of the winding rod (10) and the winding box (9); a plastic film (12) for covering the opening at one end of the transverse frame (21) is fixedly connected to the outer side of the winding rod (10); and a circular plate (13) fixed to the winding rod (10) is installed between the plastic film (12) and the torsion spring (11).

6. A handheld sample information machine according to claim 5, characterized in that: A clamping plate (14) for fixing the plastic film (12) on the transverse frame (21) is arranged at one end of the transverse frame (21) away from the sealing plug (22), and second bolts (15) are arranged at both ends of the clamping plate (14) and one end of the bolts (15) is movably extended into the interior of the transverse frame (21). A guide rod (16) for guiding the moving direction of the plastic film (12) is fixedly connected to one side of the inkjet printer body (1).

7. A handheld sample information machine according to claim 1, characterized in that: A dehumidification component (17) for reducing the water content in the air inside the inkjet printer body (1) is installed on the top of the inkjet printer body (1). The dehumidification component (17) comprises a sealing cover (171) with one end extending into the interior of the inkjet printer body (1) and communicating with the air permeable groove of the transverse frame (21). Both sides of the inner wall of the sealing cover (171) are fixedly connected with cross bars (172). A water storage box (173) is fixedly connected between the two cross bars (172). A metal rod (174) is fixedly connected between the water storage box (173) and the sealing cover (171). A plurality of inclined fins (175) are fixedly connected to one end of the top of the metal rod (174).

8. A handheld sample information machine according to claim 7, characterized in that: The bottom of the water storage box (173) is connected to a hose (18), one end of the hose (18) movably extends to the outside of the sealing cover (171), and one end of the transverse frame (21) close to the sealing plug (22) is connected to a butt joint (19) adapted to the hose (18).

Images