Disinfectant residue antibacterial performance testing device

Abstract

The utility model provides a device for testing the antibacterial performance of disinfectant residues. The device comprises a base, a bearing frame, a lifting mechanism, an air cylinder, a fixed shaft and a friction head, the base is suitable for fixing a disinfectant slide; the bearing frame is fixed on the base and is positioned on one side of the disinfectant slide glass; the lifting mechanism is located on the bearing frame and suitable for moving up and down along the bearing frame. The air cylinder is installed on the lifting mechanism, and an output shaft of the air cylinder extends in the horizontal direction. The fixed shaft is connected with the end part of the output shaft, is vertical to the output shaft and is positioned above the disinfectant slide glass; and the friction head is arranged at the end part of the fixed shaft and is suitable for being driven by the air cylinder to rub the surface of the disinfectant slide glass. The device for testing the residual antibacterial performance of the disinfectant can be used for testing the residual antibacterial performance of the disinfectant under the condition of friction or abrasion after the disinfectant is applied to the surface of an object.

Description

Technical Field

[0001] The utility model relates to the technical field of disinfectant performance testing, in particular to a testing device for the residual antibacterial performance of disinfectants. Background Art

[0002] Due to the advantages of reducing the disinfection frequency, continuously maintaining the sterilization rate to improve the anti-infection ability, reducing the differences in the disinfection operation effects, increasing the drug utilization rate, and reducing the manual workload, long-acting disinfectants have gradually become one of the important exploration directions for innovative disinfectants.

[0003] Currently, for the evaluation method of the long-acting bactericidal effect of disinfectants, mainly after applying it to the surface of an object and leaving it for a certain period of time, the bactericidal effect is detected. When using this method for evaluation, the surface of the object remains unchanged after applying the disinfectant, which is a static process. However, during the actual use of the object, its surface is very likely to be continuously worn by means such as touching and wiping, resulting in the complete or partial removal of the disinfectant. Therefore, the above-mentioned static effect evaluation method is difficult to evaluate the residual antibacterial performance of long-acting disinfectants under actual conditions such as wiping.

[0004] In view of this, there is an urgent need to propose a testing device that can evaluate the residual antibacterial performance of disinfectants after being applied to the surface of an object and under conditions of friction or wear. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a testing device for the residual antibacterial performance of disinfectants to solve the problem that the existing testing devices are difficult to test the residual antibacterial performance of disinfectants after being applied to the surface of an object and under conditions of friction or wear.

[0006] To solve the above technical problems, the technical solution of the utility model is as follows:

[0007] A testing device for the residual antibacterial performance of disinfectants, comprising:

[0008] A base, which is suitable for fixing a disinfectant carrier sheet;

[0009] A carrier frame, which is fixed on the base and is located on one side of the disinfectant carrier sheet;

[0010] A lifting mechanism, which is located on the carrier frame and is suitable for moving up and down along the carrier frame;

[0011] A cylinder, which is installed on the lifting mechanism, and the output shaft of the cylinder extends in the horizontal direction;

[0012] A fixed shaft, which is connected to the end of the output shaft, perpendicular to the output shaft, and located above the disinfectant carrier sheet;

[0013] A friction head, which is installed at the end of the fixed shaft and is adapted to friction the surface of the disinfectant carrier sheet under the drive of the cylinder.

[0014] Preferably, a clamping member is provided on the base; there are a plurality of the clamping members, which are evenly distributed on the outer periphery of the disinfectant carrier sheet and are adapted to fix the disinfectant carrier sheet.

[0015] Preferably, the carrier frame includes two concave plates; the two concave plates are arranged facing each other, and the ends are vertically fixed on the base and are adapted to form a space for accommodating the lifting mechanism.

[0016] Preferably, the lifting mechanism includes:

[0017] A screw rod, which is vertically installed on the base and is located at the central position between the two concave plates;

[0018] A lifting seat, which is provided with a threaded hole that is in threaded cooperation with the screw rod, and clamping platforms are provided on both sides of the threaded hole; the clamping platforms are adapted to be clamped in the grooves of the concave plates so that the lifting seat moves up and down along the concave plates.

[0019] Preferably, a bearing is provided at the end of the screw rod and is connected to the base through the bearing.

[0020] Preferably, an installation hole is provided at the end of the output shaft, and the fixed shaft is adapted to pass through it so that the fixed shaft is slidably connected to the output shaft;

[0021] One end of the fixed shaft is provided with a detachable end cover, and the other end is connected to the friction head.

[0022] Preferably, the disinfectant residue antibacterial performance testing device further includes a counterweight sheet; the counterweight sheet is sleeved outside the fixed shaft and is located on the friction head.

[0023] Preferably, the friction head is coated with a friction cloth;

[0024] The friction cloth is fixed outside the friction head through a rubber ring.

[0025] Preferably, the disinfectant residue antibacterial performance testing device further includes an isolation cover; the isolation cover is sleeved on the edge of the base.

[0026] Preferably, an operation window is provided on the isolation cover.

[0027] The above solution of the present utility model has at least the following beneficial effects:

[0028] (1) The disinfectant residue antibacterial performance testing device described in the present utility model includes: a base, a carrier frame, a lifting mechanism, a cylinder, a fixed shaft, and a friction head; the base is adapted to fix a disinfectant carrier sheet; the carrier frame is fixed on the base and is located on one side of the disinfectant carrier sheet; the lifting mechanism is located on the carrier frame and is adapted to move up and down along the carrier frame; the cylinder is installed on the lifting mechanism, and the output shaft of the cylinder extends in the horizontal direction; the fixed shaft is connected to the end of the output shaft, is perpendicular to the output shaft, and is located above the disinfectant carrier sheet; the friction head is installed at the end of the fixed shaft and is adapted to friction the surface of the disinfectant carrier sheet under the drive of the cylinder. For the disinfectant residue antibacterial performance testing device, through the reciprocating friction of the friction head on the disinfectant carrier sheet, the situation where the disinfectant carrier sheet is subjected to friction or wear is simulated, so as to realize the testing of the residual antibacterial performance of the disinfectant after being applied to the object surface under the conditions of friction or wear.

[0029] (2) For the disinfectant residue antibacterial performance testing device described in the present utility model, an installation hole is provided at the end of the output shaft, which is adapted for the fixed shaft to pass through, so that the fixed shaft is slidably connected to the output shaft; a detachable end cover is provided at one end of the fixed shaft, and the other end is connected to the friction head. The disinfectant residue antibacterial performance testing device further includes a counterweight sheet; the counterweight sheet is sleeved outside the fixed shaft and is located on the friction head. Through the slidable connection between the fixed shaft and the output shaft, when the friction head contacts the disinfectant carrier sheet, it can be avoided that the output shaft exerts a vertical force on the fixed shaft, and then exerts a vertical force on the disinfectant carrier sheet. Instead, the vertical force exerted by the friction head on the disinfectant carrier sheet is adjusted by increasing or decreasing the counterweight sheet, so that the testing conditions are accurate and controllable. Description of the Drawings

[0030] Figure 1 is a schematic structural diagram of the disinfectant residue antibacterial performance testing device of the present utility model;

[0031] Figure 2 is a partial structural schematic diagram of the disinfectant residue antibacterial performance testing device of the present utility model;

[0032] Figure 3 is Figure 2 the structural schematic diagram in the top view direction of

[0033] Figure 4 is a structural schematic diagram of the concave plate and the lifting seat of the disinfectant residue antibacterial performance testing device of the present utility model;

[0034] Figure 5It is a usage state diagram of the disinfectant residue antibacterial performance testing device of the present utility model.

[0035] Among them, 1 is the base; 11 is the clamping member; 2 is the disinfectant carrier sheet; 3 is the bearing frame; 31 is the concave plate; 4 is the lifting mechanism; 41 is the screw rod; 411 is the bearing; 42 is the lifting seat; 421 is the screw hole; 422 is the clamping table; 5 is the cylinder; 51 is the output shaft; 52 is the mounting hole; 6 is the fixed shaft; 61 is the end cover; 7 is the friction head; 71 is the rubber ring; 8 is the counterweight sheet; 9 is the friction cloth; 10 is the isolation cover. Specific embodiments

[0036] Hereinafter, the exemplary embodiments of the present utility model will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present utility model can be more thoroughly understood and the scope of the present utility model can be completely conveyed to those skilled in the art.

[0037] An embodiment of the present utility model provides a disinfectant residue antibacterial performance testing device, as Figures 1-5 shown, including: a base 1, a bearing frame 3, a lifting mechanism 4, a cylinder 5, a fixed shaft 6, and a friction head 7;

[0038] The base 1 is adapted to fix the disinfectant carrier sheet 2; the bearing frame 3 is fixed on the base 1 and is located on one side of the disinfectant carrier sheet 2; the lifting mechanism 4 is located on the bearing frame 3 and is adapted to move up and down along the bearing frame 3; the cylinder 5 is installed on the lifting mechanism 4, and the output shaft 51 of the cylinder 5 extends in the horizontal direction; the fixed shaft 6 is connected to the end of the output shaft 51, is perpendicular to the output shaft 51, and is located above the disinfectant carrier sheet 2; the friction head 7 is installed at the end of the fixed shaft 6 and is adapted to friction the surface of the disinfectant carrier sheet 2 under the drive of the cylinder 5.

[0039] For the purpose of implementing the present utility model, the way of fixing the disinfectant carrier sheet 2 on the base 1 is not unique. In this embodiment, a specific implementation manner is provided. The base 1 is provided with clamping members 11; the clamping members 11 are multiple and are evenly distributed around the periphery of the disinfectant carrier sheet 2 and are adapted to fix the disinfectant carrier sheet 2. The disinfectant carrier sheet 2 is clamped by the clamping members 11 to achieve fixation.

[0040] For the purpose of achieving the object of the present utility model, the design of the carrier 3 and the lifting mechanism 4 is not unique, as long as the lifting mechanism 4 can be installed and the lifting function can be realized. In this embodiment, the carrier 3 includes two concave plates 31; the two concave plates 31 are arranged facing each other, and the ends are vertically fixed to the base 1, suitable for forming a space for accommodating the lifting mechanism 4.

[0041] As Figures 2-4 shown, the lifting mechanism 4 includes: a screw 41 and a lifting seat 42. The screw 41 is vertically installed on the base 1 and is located at the central position between the two concave plates 31; a threaded hole 421 that is threadedly engaged with the screw 41 is provided on the lifting seat 42, and clamping platforms 422 are provided on both sides of the threaded hole 421; the clamping platforms 422 are suitable for being clamped in the grooves of the concave plates 31, so that the lifting seat 42 moves up and down along the concave plates 31.

[0042] To facilitate the operator to rotate the screw 41, the height of the screw 41 is greater than the height of the concave plate 31. That is, the top end of the screw 41 is exposed outside the concave plate 31, so that the operator can hold the top of the screw 41 by hand.

[0043] To facilitate the installation of the screw 41 on the base 1, a bearing 411 is provided at the end of the screw 41, and the screw 41 is connected to the base 1 through the bearing 411.

[0044] The working process of the carrier 3 and the lifting mechanism 4 is as follows: The operator holds the top of the screw 41 and rotates the screw 41, so that the lifting seat 42 that is threadedly engaged with the screw 41 moves up and down relative to the screw 41. Since the clamping platforms 422 of the lifting seat 42 are clamped in the grooves of the concave plates 31, the two concave plates 31 play a role in limiting the lifting platform 42, so that the lifting seat 42 moves up and down along the concave plates 31.

[0045] To facilitate the connection between the output shaft 51 and the fixed shaft 6, an installation hole 52 is provided at the end of the output shaft 51, suitable for the fixed shaft 6 to pass through, so that the fixed shaft 6 is slidably connected to the output shaft 51; a detachable end cover 61 is provided at one end of the fixed shaft 6, and the other end is connected to the friction head 7.

[0046] Wherein, the hole diameter of the installation hole 52 is equal to or greater than the diameter of the fixed shaft 6. Such a setting can prevent the output shaft 51 from applying a force in the vertical direction to the fixed shaft 6, and the output shaft 51 only provides a force in the horizontal direction, thereby ensuring the accuracy of the test. The setting of the end cover 61 can prevent the fixed shaft 6 from disengaging from the installation hole 52.

[0047] When the hole diameter of the mounting hole 52 is larger than the diameter of the fixed shaft 6, an external spline may be provided on the fixed shaft 6, and an internal spline mating therewith is provided in the mounting hole 52, and the rotation of the fixed shaft 6 in the mounting hole 52 is restricted by the spline structure.

[0048] The disinfectant residue antibacterial performance testing device further includes a counterweight 8; the counterweight 8 is sleeved outside the fixed shaft 6 and is located on the friction head 7. By increasing or decreasing the counterweight 8, the force in the vertical direction applied by the friction head 7 to the disinfectant carrier sheet 2 can be adjusted. When it is necessary to increase or decrease the counterweight 8, the operator can remove the end cap 61 from the end of the fixed shaft 6, separate the fixed shaft 6 from the mounting opening 52, and mount or dismount the counterweight 8 on the fixed shaft 6. The counterweight 8 can be designed as a ring with a fixed weight and sleeved on the fixed shaft 6.

[0049] The disinfectant residue antibacterial performance can be tested by wiping with a dry friction cloth or a wet friction cloth. To facilitate the replacement of the friction material, the friction head 7 is covered with a friction cloth 9; the friction cloth 9 is fixed outside the friction head 7 through a rubber ring 71. By covering the friction cloth 9 outside the friction head 7 through the rubber ring 71, the replacement of the friction cloth 9 can be simply realized to simulate the friction of different materials on the disinfectant carrier sheet 2.

[0050] To facilitate the operation under aseptic conditions, the disinfectant residue antibacterial performance testing device further includes an isolation cover 10; the isolation cover 10 is sleeved on the edge of the base 1. The isolation cover 10 is provided with an operation window. The operator can operate the disinfectant residue antibacterial performance testing device inside the isolation cover 10 through the operation window.

[0051] The usage method of the disinfectant residue antibacterial performance testing device in this embodiment is as follows:

[0052] The operator holds the top of the screw 41 and rotates the screw 41, so that the lifting seat 42 threadedly engaged with the screw 41 moves upward relative to the screw 41, driving the cylinder 5 fixed to the lifting seat 42 and the fixed shaft 6 connected to the output shaft 51 to move upward, and the friction head 7 rises to be away from the clamping member 11. Then, the disinfectant carrier sheet 2 is fixed to the base 1 through the clamping member 11. Then, the operator holds the top of the screw 41 and rotates the screw 41 in the reverse direction, so that the lifting seat 42 threadedly engaged with the screw 41 moves downward relative to the screw 41, driving the cylinder 5 fixed to the lifting seat 42 and the fixed shaft 6 connected to the output shaft 51 to move downward, and the friction head 7 descends to be in contact with the disinfectant carrier sheet 2, and its state is as Figure 5As shown. Finally, start the cylinder 5, the output shaft 51 of the cylinder 5 extends and retracts in the horizontal direction, driving the fixed shaft 6 to reciprocate in the horizontal direction, and further driving the friction head 7 to reciprocate and rub on the surface of the disinfectant carrier sheet 2. After reaching the preset number of friction times, turn off the cylinder 5, take away the disinfectant carrier sheet 2, and analyze the residual antibacterial performance.

[0053] It should be noted that the disinfectant residual antibacterial performance testing device provided by the present utility model is applicable to disinfectants with various functions. Through the disinfectant residual antibacterial performance testing device, the disinfectant carrier sheet 2 loaded with the disinfectant to be tested is subjected to friction treatment under standard conditions, and then the disinfectant carrier sheet 2 is taken away for analysis of the residual antibacterial performance, thereby realizing the evaluation of the residual antibacterial performance of the disinfectant. Among them, the standard conditions may include friction for a specific number of times, friction with a specific material, dry friction or wet friction, friction under a specific acting force (i.e., adjusted by increasing or decreasing the counterweight sheet 8), etc. Disinfectants with various functions include, but are not limited to, functions such as long-acting, anti-infection, sterilization, and antibacterial. Those skilled in the art can also test disinfectants with other functions according to the actual situation.

[0054] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A disinfectant residual antibacterial performance testing device, characterized in that: include: A base (1), wherein the base (1) is suitable for fixing a disinfectant carrier sheet (2); A carrier frame (3), the carrier frame (3) is fixed on the base (1) and is located on one side of the disinfectant carrier sheet (2); A lifting mechanism (4), the lifting mechanism (4) being located on the supporting frame (3) and being suitable for moving up and down along the supporting frame (3); A cylinder (5), wherein the cylinder (5) is mounted on the lifting mechanism (4), and an output shaft (51) of the cylinder (5) extends in a horizontal direction; A fixed shaft (6), the fixed shaft (6) being connected to the end of the output shaft (51), being perpendicular to the output shaft (51), and being located above the disinfectant carrier sheet (2); A friction head (7), which is mounted on the end of the fixed shaft (6) and is suitable for rubbing the surface of the disinfectant carrier sheet (2) under the drive of the cylinder (5).

2. The disinfectant residual antibacterial performance testing device according to claim 1, characterized in that: The base (1) is provided with a clamping piece (11); the clamping pieces (11) are multiple and evenly distributed on the periphery of the disinfectant carrier sheet (2), and are suitable for fixing the disinfectant carrier sheet (2).

3. The disinfectant residual antibacterial performance testing device according to claim 2, characterized in that: The support frame (3) comprises two concave plates (31); the two concave plates (31) are arranged facing each other, and the ends of the two concave plates are vertically fixed on the base (1), so as to form a space for accommodating the lifting mechanism (4).

4. The disinfectant residual antibacterial performance testing device according to claim 3, characterized in that: The lifting mechanism (4) comprises: A screw rod (41), the screw rod (41) being vertically mounted on the base (1) and being located at a central position between the two concave plates (31); A lifting seat (42), wherein the lifting seat (42) is provided with a screw hole (421) threadedly matched with the screw rod (41), and a clamping platform (422) is provided on both sides of the screw hole (421); the clamping platform (422) is suitable for being clamped in the groove of the concave plate (31) so that the lifting seat (42) moves up and down along the concave plate (31).

5. The disinfectant residual antibacterial performance testing device according to claim 4, characterized in that: A bearing (411) is provided at the end of the screw rod (41) and is connected to the base (1) via the bearing (411).

6. The disinfectant residual antibacterial performance testing device according to claim 1, characterized in that: The end of the output shaft (51) is provided with a mounting hole (52) suitable for the fixed shaft (6) to pass through, so that the fixed shaft (6) and the output shaft (51) are slidably connected; One end of the fixed shaft (6) is provided with a detachable end cover (61), and the other end is connected to the friction head (7).

7. The disinfectant residual antibacterial performance testing device according to claim 6, characterized in that: It also includes a weight plate (8); the weight plate (8) is sleeved outside the fixed shaft (6) and is located on the friction head (7).

8. The disinfectant residual antibacterial performance testing device according to claim 1, characterized in that: The friction head (7) is coated with a friction cloth (9); The friction cloth (9) is fixed to the outside of the friction head (7) via a rubber ring (71).

9. The disinfectant residual antibacterial performance testing device according to any one of claims 1 to 8, characterized in that: It also comprises an isolation cover (10); the isolation cover (10) is sleeved on the edge of the base (1).

10. The disinfectant residual antibacterial performance testing device according to claim 9, characterized in that: An operating window is provided on the isolation cover (10).

Images