WO2019127543A1

WO2019127543A1 - Sterilization head and apparatus having light source detection function

Info

Publication number: WO2019127543A1
Application number: PCT/CN2017/120290
Authority: WO
Inventors: 何宗江; 贾志强
Original assignee: 深圳前海小有技术有限公司; 深圳市海司恩科技有限公司
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2019-07-04

Abstract

A sterilization head (20) having a light source detection function. An ultraviolet light source (30) is mounted in the sterilization head (20); a test paper socket (21) for the insertion of ultraviolet test paper is provided on the surface of the sterilization head (20); and a test paper transmission member for enabling the test paper inserted in the test paper socket (21) to approach or leave away from the ultraviolet light source (30) is provided in the sterilization head (20). By using the sterilization head (20), a working condition of the ultraviolet light source (30) can be indicated in low costs, optical power output by a light source LED can further be indicated, and the protective test paper detection of the light source is implemented. Also disclosed is a sterilization apparatus having a light source detection function.

Description

Sterilization head and sterilization device with light source detection function

Technical field

The invention relates to the technical field of water sterilization devices, in particular to a sterilization head and a sterilization device having a light source detecting function.

Background technique

Ultraviolet light sources (usually UV-LEDs are commonly used) are commonly used in a variety of sterilization products, such as hospital operating rooms, wards, and mobile water sterilizers, which are often required to be sterilized with UV light. This type of sterilization device is a commonly used water purification and sterilization device. Among them, water purification refers to a purification process for removing pollutants from raw water, and its purpose is to achieve the effect of purifying water by a specific procedure, and use water for different purposes. Most of the existing water purifiers use physical isolation adsorption or mercury lamp sterilization. Physical isolation does not kill bacteria, only reduces the number of bacteria, and requires periodic replacement of the filter. Mercury lamps not only have a short life span, but also mercury sterilizers are easy to pollute the environment, and recycling is inconvenient, which may cause heavy metal poisoning.

Based on the above situation, many manufacturers have developed a device for sterilizing water by using ultraviolet rays, and the structure thereof is as shown in Fig. 1. The flow water sterilizing device shown in Fig. 1 includes a water flowing chamber 1 having a water inlet a and a water outlet b, and is disposed at the same The sterilization head 2 at one end of the flowing water chamber 1 is provided with a UV-LED light source 3 for emitting ultraviolet light in the sterilization head 2; and a water flow conduit is also disposed in the flowing water chamber 1 for forming a reasonable water circulation passage. The flowing water sterilizing device having the above structure sterilizes the water in the flowing water chamber 1 by ultraviolet rays of the UV-LED light source 3 that emits ultraviolet light. However, due to its sealing and safety problems, the sterilization head housing is sealed with a sealing material to prevent ultraviolet rays from harming people around.

Therefore, in the use of these sterilization equipment and products, the intensity of the irradiation of the ultraviolet irradiation lamp is not able to visually or feel the value, which makes it difficult for the staff to know the working condition of the UV-LED, so that the UV-LED The working state and luminous power cannot be mastered, which affects the ability of this type of equipment to control the sterilization process in use.

Summary of the invention

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a sterilization head having a light source detecting function, which is intended to detect the operation of a light source in a sterilization apparatus and to better control sterilization.

In order to achieve the above object, the present invention provides a sterilization head having a light source detecting function, wherein an ultraviolet light source is installed in the sterilization head, and a surface of the sterilization head is provided with a test paper socket for inserting an ultraviolet detection test paper; There is a test paper transport member for inserting the test paper inserted into the test strip socket toward or away from the ultraviolet light source.

Preferably, the test paper transporting member comprises a first traction roller and a second traction roller disposed between the test paper socket and the ultraviolet light source, and the first traction roller and the second traction roller are formed to sandwich the ultraviolet Test the test strip clamping seam of the test strip.

Preferably, the test paper transporting member further comprises a test paper guiding groove extending from the test strip socket side wall toward the test paper clamping slit;

The end of the test paper guiding groove is engaged with the test paper holding slit.

Preferably, the test paper transport member includes a test paper clip for holding the test paper, and a push rod for pushing the test paper clip toward or away from the ultraviolet light source.

Preferably, a driving member for driving the first traction roller and/or the second traction roller to rotate is further disposed in the sterilization head; the driving member includes a driver, and is configured to connect the driver and the first traction roller And/or a drive connection of the second traction roller;

The drive is a motor or motor; and/or,

The drive connection is a gear, a bearing or a belt.

Preferably, a controller for controlling the test paper transporting member is further disposed in the sterilization head, the controller includes a test strip detecting unit and a control unit; wherein

The test strip detecting unit is configured to detect whether the test strip socket has a test strip insertion, and generate transfer information when detecting the insertion of the test strip;

The control unit controls the test strip transporting piece to transfer the test strip from the test strip socket to the ultraviolet light source according to the transfer information, and controls the test strip transport piece to transport the test strip back to the test strip socket when the test strip is irradiated for a predetermined time.

Preferably, the test paper monitoring unit is a photoelectric sensor.

Preferably, the sterilization head is further provided with a blocking piece for covering the test paper socket;

The flap is coupled to the surface of the water sterilization head by a pivot; or

The surface of the sterilization head is provided with a sliding slot, and the blocking piece is slidably disposed in the sliding slot.

Preferably, the sterilization head is further provided with a standard color chart of the ultraviolet detection test paper;

And/or, the sterilization head is further provided with a test paper tray for storing the ultraviolet detection test paper.

In addition to the above-described sterilization head having a light source monitoring function, the present invention further proposes a sterilization apparatus comprising the above sterilization head and a suitable sterilization product assembly.

The sterilization head with the light source monitoring function of the invention can indicate the operation of the deep ultraviolet light source in the sterilization device at low cost, and can also qualitatively indicate the optical power of the output of the light source LED; and realize the protective test paper detection of the light source. Improve the applicability of the product.

DRAWINGS

1 is a schematic structural view of a conventional flowing water sterilization device;

2 is a schematic structural view of a flowing water sterilization device having a light source detecting function according to the present invention;

Figure 3 is a schematic view showing the structure of a water sterilization head in the water sterilization device of the present invention.

Detailed ways

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

First of all, in the present description, the sterilization head for the flowing water sterilization device will be described as an example, but it is not limited to the product of the flowing water sterilization device, and can be applied to other sterilization device products requiring the sterilization head. The invention provides a sterilization head with a light source monitoring function. The following is a description of the corresponding use of the flowing water sterilization device as the water sterilization head 20. The structure of the flowing water sterilization device applicable is shown in FIG. 2, including running water. The cavity 10 and the sterilization head 20 cooperating with the flow water chamber 10; the water sterilization head 20 is disposed at one end of the flow water chamber 10 for ultraviolet irradiation of the flow water chamber 10. Moreover, in the implementation, in order to ensure safety, the sterilization head 20 is fixedly and sealingly connected to the flow water chamber 10 during installation and cannot leak water.

Wherein, in the implementation, the flow water chamber 10 has a water inlet 11 and a water outlet 12, and the inside of the cavity is divided into two parts by a partition, and the water flow pipes are respectively disposed inside (the inner pipe and the outer pipe may be included, wherein The inner tube is used to connect the water inlet and the outer tube to connect the water outlet, which belongs to the existing content, so the figure is not digitally marked), which is used to form a reasonable water circulation channel and increase the time for the ultraviolet light to illuminate the water flow.

Referring further to FIGS. 2-3, an ultraviolet light source 30 is mounted inside the sterilization head 20 for the purpose of sterilization. In order to perform real-time detection of the ultraviolet light source 30, the surface of the flow chamber 10 is provided with a surface for storing ultraviolet detection test paper. The test paper cassette 13 can be designed to open and close the test paper cassette 13 on the surface of the flowing water chamber 10 by pushing and pulling the pull handle 131 on the drawer. Among them, it should be noted that the ultraviolet detection test paper is a mixture of polyvinylpyrrolidone, viologen, polyoxometallate, sodium polystyrene sulfonate, polyethyleneimine, etc., and then the mixture is mixed. A test strip obtained by uniformly coating onto a filter paper having a size of 1 cm × 5 cm and naturally drying. Under the ultraviolet irradiation, the ultraviolet detection paper emits electrons, which produces an intuitive and vivid color change, and absorbs the fluorescence emission energy of the rare earth-containing polyoxometalate, so that the fluorescence intensity is gradually reduced, and the degree of color change is passed. The degree of fluorescence attenuation reflects the intensity of the ultraviolet light, so that the intensity of the ultraviolet light can be detected. Moreover, the components in the ultraviolet detection test paper only have an effect on the light in the UVC band. Therefore, in the normal storage, the test paper is contaminated by external light, and is normally stored and taken in the test paper tray 13, It will cause background interference to the monitoring results. Similarly, for the same purpose, the technician can also set the above test paper tray 13 on the surface of the sterilization head 20 to have the same effect.

In order to facilitate the use of the test paper and the detection of the ultraviolet light source in the sterilization head 20, a test paper socket 21 into which the ultraviolet detection test paper is inserted into the sterilization head 20 is provided on the surface of the sterilization head 20. In order to cooperate with the use and insertion of the ultraviolet detection test paper, the corresponding test paper socket 21 in the sterilization head 20 is provided for transmitting the test paper inserted in the test paper socket 21 to the ultraviolet light source 30 to realize detection/or detection, and then returning the test paper to the test paper socket. Test strip transfer piece within 21.

Here, in one embodiment, the test strip transporting member includes a first pulling roller 22 and a second pulling roller 23, and the first pulling roller 22 is coupled to the output end of a driving member 26, and the first pulling roller is driven by the driving member 26. 22 turns. Of course, based on the operational requirements of the ultraviolet detection test paper of the present invention, when the driving member 26 drives the first pulling roller 22 to rotate, during the ultraviolet detecting test paper input process, in the structure shown in FIG. 3, the driving member 26 drives the first pulling roller. 22 is rotated in the counterclockwise direction; and after the ultraviolet detection test paper receives the ultraviolet light, when the test paper exits, the driving member 26 drives the first pulling roller 22 to rotate clockwise in the opposite direction.

Of course, it should be noted that the second pulling roller 23 serves as an auxiliary, mainly for the test paper clamping slit 24 for cooperating with the first pulling roller 22 to form the ultraviolet detecting test paper. Its own arrangement can be similar to that of the first traction roller 22, but also with a similar drive (not necessarily, not shown) for its drive connection. Then, in the structure shown in FIG. 3, during the input process of the ultraviolet detecting test paper, the driving device drives the second pulling roller 23 to rotate clockwise; and when the test paper exits after the ultraviolet light is completed, the driving device drives the second pulling roller 23 to rotate counterclockwise. , you can. In another mode, the second traction roller 23 can be arranged to be passively pulled, not driven by the above driving device, and driven to rotate passively under the rotation of the first traction roller 22 to realize the traction of the ultraviolet detection test paper input and exit. Of course, in which the driving member 26 for driving the first pulling roller 22 and the driving device for driving the second pulling roller 23, the two driving portions can be combined into one, and it is also possible to realize by one driving output. Wherein, the driving member 26 described above and the driving device not shown in the present invention may be composed of a driver such as a motor/motor, and a transmission connecting member such as a gear/bearing/belt. The technicians can use them separately according to the situation.

It can be seen from the above embodiment that although the test paper itself usually has a certain hardness and toughness, in the process of insertion, as long as the test paper itself is not used to cause bending and wrinkles, it can be directly transported to the first traction roller during normal insertion. 22 and the second drawing roller 23 are formed in the test paper clamping slit 24; however, the quality of the test paper is inevitably insufficient, or wrinkles and bending are already present, or the angle of insertion is the same with the first pulling roller 22 and the second When the angle of the test paper clamping slit 24 formed by the paper of the pulling roller 23 is not matched, the test paper is likely to be collided and blocked when inserted, and the large amount of illumination area of the internal ultraviolet light source 30 cannot be penetrated through the test paper clamping slit 24. , causing undetectable. Therefore, in a preferred embodiment, in order to facilitate the ultraviolet detection of the test paper input and output, the test paper insertion port 21 may further have a guide groove 211 for assisting the input of the test paper, which is formed from the side wall of the test paper insertion opening 21 toward the test paper holding slit 24. For the purpose and effect of the implementation, the skilled person can easily arrange the guiding output end (end) of the guiding groove 211 to be connected/engaged with the test paper clamping slit 24, so that the process connection during the introduction of the test paper can be better promoted.

The above is the structure and principle description of an embodiment of the test paper transporting member. Of course, the present invention also proposes another embodiment of the test strip transporting member (this embodiment has a simple structure and can be easily understood and implemented by a technician, so there is no description of the drawing. Specifically, a test paper clip for holding the ultraviolet test paper and a pusher for pushing the test paper clip may be used; wherein, when the test paper insert 21 has the test paper inserted, the test paper clip clamps the test paper; The rod pushes the test paper clip to move to the ultraviolet light source to be tested, thereby transmitting the clamped test paper to the ultraviolet light source for detection, and after the detection is completed, the push rod pushes the test paper clip back again, so that the tested test paper is returned to the test paper. The test strip socket 21 is convenient for the operator to take.

At the same time, as can be seen from FIG. 2, in the embodiment, although the first pulling roller 22 and the second pulling roller 23 are disposed inside the test strip socket 21, the deep ultraviolet light emitted from the ultraviolet light source 30 can be blocked to some extent from the test paper. The socket 21 is ejected; however, for safety reasons, a flap 25 which can be used to cover/open the test strip socket 21 is provided at a position of the water sterilization head 20 near the test strip socket 21. The manner in which the flaps 25 are disposed, in one embodiment, is pivotally coupled to the surface of the water sterilization head 20 by a pivot, and the opening/covering of the test strip socket 21 is achieved by the angle of rotation. In another embodiment, a chute is opened in the vicinity of the test strip socket 21, and then the flap 25 is installed in the chute and can slide along the chute, and the opening/covering test strip is realized by adjusting the sliding distance. Socket 21. When it is not necessary to detect the ultraviolet light source 30, the shutter 25 is rotated or slid to block the test strip socket 21 to prevent ultraviolet rays from being emitted; when the detection is required, the shutter 25 is again rotated or slid, and the test strip socket 21 is opened to facilitate the insertion of the test paper.

In order to further improve the convenience of automatic detection, this product is set by the factory to set the start time and test duration of each test, for example, when the lamp life is 70% left, test it when there is 50% remaining. Tested once when 30% left. It is also possible to test as needed, and open the shutter 25 to input the ultraviolet detecting test paper from the test paper socket 21, and when the pulling roller (the first pulling roller 22 and the second pulling roller 23) pulls the test paper to the set detection position state, the ultraviolet light source is turned on. 30 lights, after the test time is over, turn off the ultraviolet light source 30 light, press the control button again to turn the traction roller, and the irradiated test paper is turned out. Then, according to the standard color chart attached to the test strip, color comparison is performed to determine the condition of the light source.

Further, since the ultraviolet light source 30 is detected by using the ultraviolet detecting test paper, the degree of discoloration of the ultraviolet test paper is related to the two factors of the light intensity and the irradiation time of the ultraviolet light source 30 to be measured; the stronger the light intensity/the longer the time, The deeper the degree of discoloration of the test paper; the control of the time node and the accuracy of the test paper transporting the test strip is relatively poor, so in the implementation of the present invention, a controller for controlling the test strip transport member is further supplemented, and the controller is used for the controller. Controlling the test paper transporting member according to the time required for the test to transfer or return the test strip to the ultraviolet light source, and the hardware structure and working mode thereof may be implemented by a controller including a test strip detecting unit and a control unit;

a test strip detecting unit for detecting whether a test strip is inserted into the test strip socket, and generating transfer information when detecting the insertion of the test strip; and a control unit controlling the test strip transport member to transfer the test strip from the test strip socket 21 to the ultraviolet light source 30 for illumination detection according to the transfer information, And the test strip transporter is transported to the test strip socket 21 when the test paper is irradiated for a predetermined time.

It should be further noted that the test strip detecting unit can be implemented by using a photoelectric sensor, and the photoelectric sensor is installed on the inner wall of the water sterilization head 20 near the test strip socket 21, and the photoelectric paper is blocked when the test paper is inserted into the test strip socket 21. The light of the sensor generates an identification signal with the test paper; then the controller controls the test paper transport member to transmit the test paper to the ultraviolet light source 30 to receive the illumination detection according to the identification signal. Specifically, the connection mode of the controller and the test paper transporting member can be connected to the driving member 26 in the embodiment of the pulling roller, and the control of the test paper can be controlled by controlling the driving member 26 to drive the output; and in another implementation In the mode, the driving portion of the push rod can be controlled to realize the control of the test paper conveyance.

The sterilization head with the light source monitoring function of the invention can indicate the operation of the deep ultraviolet light source in the sterilization device through the above functional structure at low cost, and can also qualitatively indicate the optical power of the output of the light source LED; and realize the light source. Protective test strip detection improves the applicability of the product.

Based on the convenience of long-term use of the present invention, the color chart can be fixedly mounted on the surface of the water sterilization head 20, and the specific convenience position can be set at a blank position near the test strip socket 21, so that the sterilization head 20 has a colorimetric color. The card is close to the position of the detected test strip extending from the test strip socket 21, so that the worker can directly perform the comparison operation.

At the same time, it can be further seen from the structure of Fig. 1 that the bottom of the water sterilization head 20 is further provided with a power source 40 which is connected to and supplied with the ultraviolet light source 30 located inside by the wire. Moreover, in order to facilitate the operation of the worker, a switch for controlling the power source and a control button of the driving member 26 may be provided on the surface of the water sterilization head 20 to improve the convenience of use.

Further, in the above-described sterilization head having the light source monitoring function of the present invention, the present invention further provides a sterilization apparatus comprising the above-described sterilization head having a light source monitoring function and a disinfecting and sterilization product assembly corresponding thereto. For example, it is similar to a flowing water sterilizing device composed of a sterilizing head 20 and a flowing water chamber 10, wherein the flowing water chamber 10 has a water inlet 11 and a water outlet 12. The sterilizing device of the invention can conveniently obtain the working condition of the UV-LED in use, thereby facilitating good control of the sterilization and sterilization process; and adopting the sterilizing device with the light source monitoring function of the invention, can be low-cost, It indicates the working condition of the deep ultraviolet light source, and can also qualitatively indicate the optical power of the output of the light source LED; and realize the detection of the protective test paper of the light source, thereby improving the applicability of the product.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Claims

A sterilizing head having a light source detecting function, wherein the sterilizing head is provided with an ultraviolet light source, wherein the sterilizing head surface is provided with a test paper socket for inserting the ultraviolet detecting test paper; and the sterilizing head is further provided with The test paper inserted into the test strip socket is near or away from the test paper transport member of the ultraviolet light source.
The sterilizing head having a light source detecting function according to claim 1, wherein the test paper conveying member comprises a first pulling roller and a second pulling roller disposed between the test paper socket and the ultraviolet light source, and the first A test paper holding slit for holding the ultraviolet detecting test paper is formed between a pulling roller and the second pulling roller.
The sterilizing head having a light source detecting function according to claim 2, wherein the test paper conveying member further comprises a test paper guiding groove extending from the side wall of the test strip to the test paper holding slit;

The end of the test paper guiding groove is engaged with the test paper holding slit.
A sterilization head having a light source detecting function according to claim 1, wherein said test paper conveying member comprises a test paper clip for holding a test paper, and a pusher paper clip for pushing the test paper clip toward or away from said ultraviolet light source. Putt.
The sterilizing head having a light source detecting function according to claim 2 or 3, wherein the sterilizing head is further provided with a driving member for driving the first pulling roller and/or the second pulling roller to rotate; The drive member includes a driver, and a drive connector for connecting the driver to the first traction roller and/or the second traction roller;

The drive is a motor or motor; and/or,

The drive connection is a gear, a bearing or a belt.
The sterilization head having a light source detecting function according to any one of claims 1 to 4, wherein a controller for controlling the test paper conveying member is further disposed in the sterilization head, the controller including a test strip detecting unit and a control Unit; among them,

The test strip detecting unit is configured to detect whether the test strip socket has a test strip insertion, and generate transfer information when detecting the insertion of the test strip;

The control unit controls the test paper transporting device to transfer the test paper from the test paper socket to the ultraviolet light source according to the transfer information, and controls the test paper transport member to transport the test paper back to the test paper socket when the test paper is irradiated for a predetermined time.
A sterilization head having a light source detecting function according to claim 6, wherein said test paper monitoring unit is a photoelectric sensor.
The sterilizing head having a light source detecting function according to any one of claims 1 to 4, wherein the sterilizing head is further provided with a blocking piece for covering the test strip socket;

The flap is coupled to the surface of the water sterilization head by a pivot; or

The surface of the sterilization head is provided with a sliding slot, and the blocking piece is slidably disposed in the sliding slot.
The sterilizing head having a light source detecting function according to any one of claims 1 to 4, wherein the sterilizing head is further provided with a standard color chart of the ultraviolet detecting test paper;

And/or, the sterilization head is further provided with a test paper tray for storing the ultraviolet detection test paper.
A sterilizing apparatus comprising the sterilizing head having a light source detecting function according to any one of claims 1 to 9.