A blood sample observation device before whole blood analysis

Abstract

The present invention discloses a blood sample observation device before whole blood analysis, which relates to the field of blood sample observation and disinfection technology in the medical industry, and includes: a housing, on which an observation area is provided; a roll of absorbent paper, which is rotatably arranged at the front of the housing; a disinfection box, which is arranged at the rear of the housing; a conveying assembly, which is fixed directly below the observation area; and a vacuum adsorption assembly, which cooperates with the conveying assembly and is used to make the roll of absorbent paper automatically pass through the observation area at intervals and naturally droop into the disinfection box. The present invention realizes the automatic supply of absorbent paper, and realizes the timely disinfection of the absorbent paper and blood samples after observation. Compared with the prior art, the process of blood sample observation is simplified, the tediousness of the work of the detection personnel is reduced, and the pollution and safety hazards are reduced, thereby solving the technical problems of the existing conventional operation mode, such as the complicated process, the tedious detection work, the blood sample is easy to contaminate the surroundings, and the biological risk is high.

Description

Technical Field

[0001] The present invention relates to the technical field of blood sample observation and disinfection in the medical industry, and in particular to a blood sample observation device before whole blood analysis, which is suitable for disinfecting the observed blood sample. Background Art

[0002] At present, when hospitals conduct certain whole blood analyses (such as blood gas analysis), the conventional operation method is: first manually find absorbent paper (such as toilet paper, etc.) and spread it flat on the work surface, then put the first part of the collected arterial blood sample on the absorbent paper, and finally test it on the machine. One purpose is to exclude the blood sample that has been exposed to oxygen in the first part, and the second purpose is to observe whether there is blood clot in the blood sample, so as to improve the accuracy of whole blood analysis.

[0003] However, it is found through practical application that the above conventional operation mode still has the following technical problems: 1. Each time a blood sample is observed, it is necessary to manually take the absorbent paper and spread it flat on the work surface. This is not only complicated to operate, but also increases the tediousness of the work of the tester.

[0004] 2. After observation, the blood sample still remains on the absorbent paper and is exposed to the outside, which poses a high biosafety risk and is easy to contaminate, and does not meet laboratory safety requirements.

[0005] 3. After the observation, the blood sample needs to be manually collected into the medical waste bin. During the movement, it is not only easy to touch the blood sample, but also easy to contaminate the surrounding objects due to the drop of absorbent paper and blood sample on the paper. It is inconvenient to clean, easy to contaminate the surroundings and affect the safety of the testers. In addition, the absorbent paper and blood sample collected in the medical waste bin will still stay in the bin for a long time, which also affects environmental safety.

[0006] In addition, after searching and analyzing, it is found that there is no document in the prior art that discloses a technology that is convenient for blood sample observation and can disinfect the absorbent paper and blood sample in time after observation. Therefore, it is necessary to provide a new technology to solve the above technical problems. Summary of the invention

[0007] The present invention aims to address the deficiencies and defects of the above-mentioned prior art and proposes a blood sample observation device before whole blood analysis. The present invention designs a structure in which absorbent paper can be automatically supplied and the absorbent paper can automatically enter a disinfection box after observation. In actual use, the automatic supply of absorbent paper is realized, and the absorbent paper and blood samples after observation are disinfected in time. Compared with the prior art, the present invention simplifies the process of blood sample observation, reduces the tediousness of the work of the detection personnel, and reduces pollution and safety hazards, thereby solving the technical problems of the existing conventional operation mode, such as the complicated process, tedious detection work, easy contamination of the surrounding by blood samples and high biological risks.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A blood sample observation device before whole blood analysis, comprising: A shell, wherein an observation area is provided in the middle of the upper surface of the shell; A roll of absorbent paper, wherein the roll of absorbent paper is rotatably arranged at the front portion of the housing; A disinfection box, the disinfection box being arranged at the rear portion of the housing; A conveying assembly, wherein the conveying assembly is fixed in the middle of the shell and is located directly below the observation area; A vacuum adsorption component is fixed in the middle of the shell, and cooperates with the conveying component to allow the roll of absorbent paper to automatically pass through the bottom of the observation area and naturally droop into the disinfection box.

[0009] The conveying assembly includes a driving motor, a conveyor belt, an active roller, a driven roller and a tensioning roller. The driven roller is horizontally fixed on both sides of the upper part of the shell through bearing seats, and the active roller and the tensioning roller are horizontally fixed on both sides of the middle part of the shell through bearing seats, and the spacing between the active roller and the tensioning roller is smaller than the spacing between the driven rollers; the conveyor belt is simultaneously sleeved on the active roller, the driven roller and the tensioning roller, and two groups of symmetrical adsorption holes are opened on the conveyor belt, and the spacing between the two groups of adsorption holes is 3 / 4-7 / 8 of the width of the roll of absorbent paper; the driving motor, the active shaft and the driven shaft are respectively connected by belts; the vacuum adsorption assembly generates negative pressure through the adsorption holes to adsorb the roll of absorbent paper on the conveyor belt, and the conveying assembly uses the adsorption force of the vacuum adsorption assembly to drive the roll of absorbent paper to move toward the disinfection box.

[0010] The conveyor belt between the tension roller and the driven roller at the rear side has an inclination of 30-60 degrees with respect to the vertical direction.

[0011] Paper guides are respectively arranged above the adsorption holes on both sides of the conveyor belt, and a guide channel for the roll absorbent paper to pass through is arranged between the paper guides and the conveyor belt.

[0012] The vacuum adsorption assembly comprises a vacuum pump and a vacuum chamber. The vacuum chamber abuts against the lower surface of the conveyor belt between the driven rollers. The vacuum pump is located below the vacuum chamber. The vacuum chamber is respectively connected to the vacuum pump and the adsorption holes on the conveyor belt.

[0013] A flexible buffer ring is arranged around the vacuum chamber and between the conveyor belt.

[0014] The upper end of the disinfection box is located between the tensioning roller and the driven roller and is close to the driven roller.

[0015] A scraper for preventing the roll of absorbent paper from adhering to the conveyor belt is fixed on the upper end of the disinfection box near the tensioning roller.

[0016] The shell is a trapezoidal structure, and a switch for controlling the conveying component and the vacuum adsorption component is provided on the upper front side of the shell.

[0017] An openable and closable front cover is arranged on the front side of the shell body corresponding to the roll absorbent paper, and an openable and closable right cover is arranged on the right side of the shell body corresponding to the disinfection box.

[0018] The advantages of adopting the present invention are: 1. The present invention arranges a roll of absorbent paper, a conveying assembly, a vacuum adsorption assembly and a disinfection box in a housing, and an observation area is provided above the conveying assembly. In actual use, the conveying assembly and the vacuum adsorption assembly cooperate to enable the roll of absorbent paper to automatically pass through the observation area at intervals and naturally droop into the disinfection box. Since the roll of absorbent paper can automatically pass through the observation area at intervals, a blood sample can be placed on the absorbent paper for observation when the roll of absorbent paper stays. After the observation, the absorbent paper with the blood sample will continue to move backwards under the cooperation of the conveying assembly and the vacuum adsorption assembly. When the absorbent paper exceeds the rear end of the conveying assembly, the absorbent paper will naturally droop under the action of gravity and enter the disinfection box for disinfection.

[0019] In summary, in this scheme, the absorbent paper is automatically fed and automatically enters the disinfection box during the entire observation process, which not only effectively simplifies the process of blood sample observation and reduces the tediousness of the work of the testers, but also effectively avoids the contact of blood samples with external personnel and objects, and can promptly disinfect the absorbent paper and blood samples after observation, effectively reducing blood sample contamination and biosafety risks.

[0020] 2. The present invention provides two sets of symmetrical adsorption holes on the conveyor belt, which is conducive to cooperating with the vacuum adsorption assembly to generate an adsorption force on the roll of absorbent paper, thereby facilitating the absorbent paper to move along the conveyor belt toward the disinfection box. By setting the spacing between the active roller and the tensioning roller to be smaller than the spacing between the driven rollers, the conveyor belt is roughly in an inverted isosceles trapezoidal structure, which is convenient for the absorbent paper to naturally sag under the action of gravity and enter the disinfection box when it moves to the rear end of the conveyor assembly. By setting the spacing between the two sets of adsorption holes to 3 / 4-7 / 8 of the width of the roll of absorbent paper, the adsorption force generated by the vacuum adsorption assembly only acts on both sides of the roll of absorbent paper, which is conducive to preventing the blood sample on the absorbent paper from penetrating the absorbent paper and entering the vacuum chamber under the action of the adsorption force, thereby preventing new contamination.

[0021] 3. The present invention sets the conveyor belt between the tensioning roller and the driven roller at the rear side to have an inclination of 30-60 degrees, which can effectively achieve the natural drooping of the absorbent paper while ensuring the smooth operation of the conveyor belt.

[0022] 4. The present invention forms a guide channel for the roll absorbent paper to pass through between the conveyor belts through the paper guide, which is helpful to prevent the absorbent paper from wrinkling, thereby making the automatic paper feeding of the absorbent paper more accurate and reliable.

[0023] 5. The present invention makes the vacuum chamber abut against the lower surface of the conveyor belt between the driven rollers, and makes the vacuum chamber communicate with the adsorption hole, which is conducive to achieving vacuum adsorption force on the roll absorbent paper without affecting the stable operation of the conveyor belt.

[0024] 6. The present invention can reduce the friction between the conveyor belt and the vacuum chamber and play a sealing role through the flexible buffer ring, which has the advantages of increasing the service life of the conveyor belt and ensuring the vacuum adsorption effect.

[0025] 7. The present invention sets the upper end of the disinfection box between the tension roller and the driven roller and close to the driven roller, which is not only conducive to allowing the observed absorbent paper to enter the disinfection box as promptly and quickly as possible, but also conducive to avoiding waste of absorbent paper. More importantly, since the observed absorbent paper can enter the disinfection box in time, the entire device does not need to add an absorbent paper cutting structure, etc., and thus has the advantage of simplifying the device structure.

[0026] 8. The scraper of the present invention is helpful to prevent the absorbent paper from sticking to the conveyor belt.

[0027] 9. The present invention sets the shell to a trapezoidal structure, which has the advantages of simple structure, high stability and good reliability.

[0028] 10. The present invention is provided with an openable and closable front cover and an openable and closable right cover. The front cover facilitates the rapid replacement of the roll of absorbent paper, and the right cover facilitates the timely replacement and treatment of the disinfection box, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the main plane structure of the present invention; Figure 2 It is a schematic diagram of the top plan structure of the present invention.

[0030] Markings in the figure are: 1. Shell, 2. Observation area, 3. Roll of absorbent paper, 4. Disinfection box, 5. Driving motor, 6. Conveyor belt, 7. Active roller, 8. Driven roller, 9. Tensioning roller, 10. Adsorption hole, 11. Vacuum pump, 12. Vacuum chamber, 13. Flexible buffer ring, 14. Scraper, 15. Paper guide, 16. Switch, 17. Front cover, 18. Right cover. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention, but are not used to limit the present invention.

[0032] like Figure 1-2 As shown, the present invention provides a blood sample observation device before whole blood analysis, comprising: The shell 1 is a trapezoidal structure, and an observation area 2 is provided in the middle of the upper surface along the length direction. The parameters of the trapezoidal shell can be: bottom length 40 cm, height 20 cm, top length 25 cm, shell thickness 15 cm, and the parameters of the observation area 2 can be: length 13 cm, width 11 cm.

[0033] The roll absorbent paper 3 is rotatably arranged at the front part of the housing 1. Specifically, a rotatable shaft is arranged in the housing 1, and the roll absorbent paper 3 is sleeved on the shaft. Under the traction of external force, the roll absorbent paper 3 rotates and releases paper.

[0034] The disinfection box 4 is arranged at the rear of the housing 1 and is provided with a sodium chlorate disinfectant for disinfecting the blood sample.

[0035] The conveying assembly is fixed in the middle of the housing 1 and is located directly below the observation area 2. The conveying assembly is located between the roll of absorbent paper 3 and the disinfection box 4, and is used to automatically and spacedly allow the roll of absorbent paper 3 to enter the disinfection box 4. It should be noted that the aforementioned automatic spacing means that when the roll of absorbent paper 3 carrying the blood sample moves to the bottom of the observation area 2, it needs to stay for a period of time so that the blood sample can be deposited on the roll of absorbent paper 3 for observation.

[0036] A vacuum adsorption component is fixed in the middle of the shell 1, and cooperates with the conveying component to generate an adsorption force on the roll of absorbent paper 3 on the conveying component, so that the roll of absorbent paper 3 can automatically pass through the bottom of the observation area 2 and naturally droop into the disinfection box 4.

[0037] It should be noted that the adsorption force generated by the vacuum adsorption component in this solution is relatively small, so that the roll absorbent paper 3 can be effectively adsorbed on the conveying component without damaging the roll absorbent paper 3. In addition, the roll absorbent paper 3 can be a conventional thickened roll toilet paper or a customized four-layer absorbent paper with a thickness of 0.5-0.8 mm. Since the amount of blood sample observed each time is small and the absorbent paper is thick, it can effectively prevent the blood sample from soaking and contaminating the conveying component.

[0038] In a specific embodiment, Figure 1 As shown, the above-mentioned conveying assembly includes a driving roller 7, a driven roller 8 and a tensioning roller 9. There are two driven rollers 8, and the two driven rollers 8 are horizontally fixed on both sides of the upper part of the shell 1 through bearing seats. There is one driving roller 7 and one tensioning roller 9, and both the driving roller 7 and the tensioning roller 9 are located below the driven roller 8. The driving roller 7 and the tensioning roller 9 are horizontally fixed on both sides of the middle part of the shell 1 through bearing seats, and the driving shaft and the driven shaft, as well as the driven shafts are connected by belts.

[0039] The above-mentioned conveying component also includes a conveyor belt 6, which is simultaneously mounted on a driving roller 7, a driven roller 8 and a tensioning roller 9. Two groups of symmetrical adsorption holes 10 are also provided on the conveyor belt 6. The vacuum adsorption component can generate negative pressure through the adsorption holes 10 to adsorb the roll of absorbent paper 3 on the conveyor belt 6, so that the conveying component can use the adsorption force of the vacuum adsorption component to drive the roll of absorbent paper 3 to move toward the disinfection box 4.

[0040] The above-mentioned conveying assembly also includes a driving motor 5, and the driving motor 5 is connected to the driving shaft through a belt. The driving motor 5 can drive the conveyor belt 6 to rotate through the driving shaft, the belt and the driven shaft.

[0041] In this embodiment, the active roller 7, the driven roller 8 and the tension roller 9 are all detachable structures, and the conveyor belt 6 is a replaceable structure. Once the conveyor belt 6 is contaminated due to misoperation, it can be removed for disinfection or replaced with a new conveyor belt 6. In addition, after each roll of absorbent paper 3 is used up, the conveyor belt 6 can be disinfected by spraying disinfectant through the observation area 2, or a disinfectant spraying device facing the conveyor belt 6 is set below the conveyor belt 6, thereby effectively preventing the conveyor belt 6 from being contaminated.

[0042] In this embodiment, the spacing between the active roller 7 and the tensioning roller 9 is preferably smaller than the spacing between the driven rollers 8, so that the conveyor belt 6 is roughly in an inverted isosceles trapezoidal structure after being put on the rollers. After observation, when the absorbent paper with the blood sample moves to the rear end of the conveying assembly, it can naturally droop under the action of gravity and enter the disinfection box 4.

[0043] In this embodiment, the spacing between the two groups of adsorption holes 10 is preferably 3 / 4-7 / 8 of the width of the roll of absorbent paper 3, so that the adsorption force generated by the vacuum adsorption assembly only acts on the two sides of the roll of absorbent paper 3, which is helpful to prevent the blood sample on the absorbent paper from penetrating the absorbent paper under the action of the adsorption force and entering the vacuum chamber 12 to cause new contamination.

[0044] In this embodiment, it is preferred that the conveyor belt 6 between the tensioning roller 9 and the driven roller 8 located on the rear side has an inclination of 30-60 degrees with the vertical direction, for example, it can be 45 degrees. This makes the conveyor belt 6 between the tensioning roller 9 and the driven roller 8 located on the rear side have an inclination of 30-60 degrees with the vertical direction, so that the height of the disinfection box 4 can be designed to be higher, so that the absorbent paper with the blood sample can be promptly drooped into the disinfection box 4 without being cut.

[0045] In a specific embodiment, Figure 1 As shown, two paper guides 15 are respectively provided above the adsorption holes 10 on both sides of the conveyor belt 6, and a guide channel for the roll absorbent paper 3 to pass through is provided between the two paper guides 15 and both sides of the conveyor belt 6. When the roll absorbent paper 3 passes through the guide channel, the paper guides 15 can guide and comb the roll absorbent paper 3 to prevent the roll absorbent paper 3 from being jammed due to curling.

[0046] In a specific embodiment, Figure 1 As shown, the vacuum adsorption assembly includes a vacuum pump 11 and a vacuum chamber 12. The vacuum chamber 12 is a square structure without a cover plate on the upper end. The upper end of the vacuum chamber 12 abuts against the lower surface of the conveyor belt 6 between the driven rollers 8. The vacuum pump 11 is located below the vacuum chamber 12. The vacuum chamber 12 is respectively connected to the vacuum pump 11 and the adsorption holes 10 on the conveyor belt 6.

[0047] In this embodiment, if Figure 1 As shown, a flexible buffer ring 13 is fixed around the upper end of the vacuum chamber 12 . The flexible buffer ring 13 is located between the vacuum chamber 12 and the conveyor belt 6 , and plays the role of reducing the wear of the conveyor belt 6 and sealing the vacuum chamber 12 .

[0048] In a specific embodiment, Figure 1 As shown, the upper end of the disinfection box 4 is located between the tension roller 9 and the driven roller 8 and close to the driven roller 8, so that the absorbent paper with the blood sample can be promptly drooped into the disinfection box 4 without being cut.

[0049] In this embodiment, a scraper 14 is fixed to the upper end of the disinfection box 4 near the tensioning roller 9 to prevent the roll of absorbent paper 3 from adhering to the conveyor belt 6. When the roll of absorbent paper 3 with a blood sample adheres to the conveyor belt 6 and cannot droop automatically, the scraper 14 can scrape the adhered roll of absorbent paper 3 from the conveyor belt 6 into the disinfection box 4.

[0050] In a specific embodiment, Figure 1 As shown, a switch 16 for controlling the conveying component and the vacuum adsorption component is provided on the front upper side of the shell 1. The number of the switches 16 can be either one main switch 16 or two sub-switches 16, which can be set accordingly according to actual needs.

[0051] In a specific embodiment, Figure 2 As shown, a front cover plate 17 that can be opened and closed is provided on the front side of the housing 1 corresponding to the roll of absorbent paper 3, and a right cover plate 18 that can be opened and closed is provided on the right side of the housing 1 corresponding to the disinfection box 4. By opening the front cover plate 17 and the right cover plate 18, the roll of absorbent paper 3 and the disinfection box 4 can be easily replaced. The rear cover of the housing 1 can also be designed to be an openable and closable structure.

[0052] The implementation principle of the present invention is: First, manually pull the end of the roll absorbent paper 3 through the conveyor belt 6 to the driven roller 8 at the rear side. When observation is required, first apply the blood sample to the roll absorbent paper 3 above the conveyor belt 6 from the observation area 2. After the observation is completed, start the vacuum pump 11 through the switch 16. The vacuum pump 11 generates an adsorption force on the roll absorbent paper 3 on the conveyor belt 6 through the vacuum chamber 12 and the adsorption hole 10. At the same time, start the drive motor 5 through the switch 16. The drive motor 5 drives the conveyor belt 6 to rotate through the active roller 7 and the driven roller 8, thereby moving the absorbent paper with the blood sample backward. When the absorbent paper with the blood sample moves to the rear side of the driven roller 8, the absorbent paper with the blood sample will naturally droop under the action of gravity and enter the disinfection box 4 for disinfection. When the absorbent paper with the blood sample completely enters the disinfection box 4, turn off the vacuum pump 11 and the drive motor 5 at the same time, and wait for the next observation.

[0053] In summary, the absorbent paper in the entire observation process of the present invention is automatically fed and automatically enters the disinfection box 4, which not only effectively simplifies the process of blood sample observation and reduces the tediousness of the work of the detection personnel, but also can effectively avoid the contact of blood samples with external personnel and objects, and can timely disinfect the absorbent paper and blood samples after observation, thereby achieving the purpose of effectively reducing blood sample contamination and biosafety risks.

[0054] The above description is only a specific implementation mode of the present invention. Any feature disclosed in this specification, unless otherwise stated, can be replaced by other alternative features that are equivalent or have similar purposes; all the disclosed features, or all the steps in the methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.

Claims

1. A blood sample observation device before whole blood analysis, characterized in that include: A shell (1), wherein an observation area (2) is provided in the middle of an upper surface of the shell (1); A roll of absorbent paper (3), the roll of absorbent paper (3) being rotatably arranged at the front portion of the housing (1); A disinfection box (4), the disinfection box (4) being arranged at the rear portion of the housing (1); A conveying assembly, the conveying assembly being fixed in the middle of the housing (1) and located directly below the observation area (2); A vacuum adsorption component is fixed in the middle of the housing (1), and cooperates with the conveying component to allow the roll of absorbent paper (3) to automatically pass through the bottom of the observation area (2) and droop naturally into the disinfection box (4).

2. The blood sample observation device before whole blood analysis according to claim 1, characterized in that: The conveying assembly comprises a driving motor (5), a conveying belt (6), a driving roller (7), a driven roller (8) and a tensioning roller (9), wherein the driven roller (8) is horizontally fixed to both sides of the upper part of the housing (1) through bearing seats, and the driving roller (7) and the tensioning roller (9) are horizontally fixed to both sides of the middle part of the housing (1) through bearing seats, and the spacing between the driving roller (7) and the tensioning roller (9) is smaller than the spacing between the driven rollers (8); the conveying belt (6) is simultaneously sleeved on the driving roller (7), the driven roller (8) and the tensioning roller (9). Two groups of symmetrical adsorption holes (10) are provided on the roller (9) and the conveyor belt (6), and the spacing between the two groups of adsorption holes (10) is 3 / 4-7 / 8 of the width of the roll of absorbent paper (3); the driving motor (5), the driving shaft and the driven shaft are respectively connected by belts; the vacuum adsorption component generates negative pressure through the adsorption holes (10) to adsorb the roll of absorbent paper (3) on the conveyor belt (6), and the conveyor component drives the roll of absorbent paper (3) to move toward the disinfection box (4) using the adsorption force of the vacuum adsorption component.

3. The blood sample observation device before whole blood analysis according to claim 2, characterized in that: The conveyor belt (6) between the tensioning roller (9) and the driven roller (8) located at the rear side has an inclination of 30-60 degrees with respect to the vertical direction.

4. The blood sample observation device before whole blood analysis according to claim 2, characterized in that: Paper guides (15) are respectively provided above the adsorption holes (10) on both sides of the conveyor belt (6), and a guide channel for the roll absorbent paper (3) to pass through is provided between the paper guides (15) and the conveyor belt (6).

5. The blood sample observation device before whole blood analysis according to claim 2, characterized in that: The vacuum adsorption assembly comprises a vacuum pump (11) and a vacuum chamber (12); the vacuum chamber (12) abuts against the lower surface of the conveyor belt (6) between the driven rollers (8); the vacuum pump (11) is located below the vacuum chamber (12); and the vacuum chamber (12) is respectively connected to the vacuum pump (11) and the adsorption holes (10) on the conveyor belt (6).

6. The device for observing blood samples before whole blood analysis according to claim 5, characterized in that: A flexible buffer ring (13) is provided around the vacuum chamber (12) and between the conveyor belt (6).

7. The device for observing blood samples before whole blood analysis according to claim 2, characterized in that: The upper end of the disinfection box (4) is located between the tensioning roller (9) and the driven roller (8) and is close to the driven roller (8).

8. The blood sample observation device before whole blood analysis according to claim 7, characterized in that: A scraper (14) is fixed to the upper end of the disinfection box (4) on the side close to the tensioning roller (9) for preventing the roll of absorbent paper (3) from adhering to the conveyor belt (6).

9. The blood sample observation device before whole blood analysis according to claim 1, characterized in that: The housing (1) is of a trapezoidal structure, and a switch (16) for controlling a conveying component and a vacuum adsorption component is provided on the front upper side of the housing (1).

10. The blood sample observation device before whole blood analysis according to claim 1, characterized in that: An openable and closable front cover plate (17) is provided on the front side of the housing (1) corresponding to the roll of absorbent paper (3), and an openable and closable right cover plate (18) is provided on the right side of the housing (1) corresponding to the disinfection box (4).

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