Ultraviolet sterilizer with lamp tube self-locking structure

Abstract

The utility model relates to ultraviolet germicidal lamp device technical field, specifically is ultraviolet sterilizer with lamp tube self -locking structure, include: lamp body structure, it includes quartz sleeve, the quartz sleeve is limited to have the lamp stand inside sliding connection, the part of lamp stand is installed ultraviolet lamp tube in quartz sleeve inside, quartz sleeve outer wall fixed mounting has the sterilizer shell that it is wrapped, lamp tube self -locking structure, it includes micro -switch seat, micro -switch seat sliding connection in quartz sleeve, be provided with the elastic button structure of control lamp stand electricity on micro -switch seat. The device can make that micro -switch seat is put into in quartz sleeve, realize micro -switch seat put into quartz sleeve when ultraviolet lamp tube electricity, when ultraviolet lamp tube power failure when micro -switch seat is taken out from quartz sleeve, to meet the lamp tube from the sterilizer dismantles, will cut off the power supply of lamp tube, prevent ultraviolet light from injuring the eye and skin of operator.

Description

Technical Field

[0001] This utility model relates to the technical field of ultraviolet germicidal lamp devices, and in particular to an ultraviolet germicidal device with a lamp tube self-locking structure. Background Technology

[0002] When a flow-through UV sterilizer needs to be exported to Europe, local product safety requirements stipulate that the sterilizer must have a self-locking mechanism when removing or replacing the UV lamp. This mechanism ensures that the power to the lamp is cut off when it is removed from the sterilizer, preventing UV light from harming the operator's eyes and skin.

[0003] Most conventional flow-through sterilizers in China do not have this self-locking device, which does not meet the safety requirements for export to the European Union. Sterilizers on the market that do have this device require modifications to the sterilizer casing or sealing head to accommodate and trigger the microswitch of the self-locking mechanism. This is structurally complex and also presents challenges in addressing the compliance issues of exporting conventional flow-through sterilizers from China to the EU.

[0004] To minimize the need for redesigning conventional sterilizers and reduce costs, we designed an ultraviolet sterilizer with a lamp self-locking mechanism. This mechanism allows the microswitch holder to be connected to the lamp holder via wires. The microswitch holder is then placed inside a quartz sleeve. When the microswitch holder is inserted into the quartz sleeve, the ultraviolet lamp is energized; when the microswitch holder is removed from the quartz sleeve, the ultraviolet lamp is de-energized. This ensures that the lamp's power is cut off when it is removed from the sterilizer, preventing ultraviolet light from harming the operator's eyes and skin. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes an ultraviolet sterilizer with a lamp self-locking structure, which allows the micro switch base to be placed in the quartz sleeve. When the micro switch base is placed in the quartz sleeve, the ultraviolet lamp is energized, and when the micro switch base is removed from the quartz sleeve, the ultraviolet lamp is de-energized. This satisfies the requirement that when the lamp is removed from the sterilizer, the power supply to the lamp will be cut off to prevent ultraviolet rays from damaging the operator's eyes and skin.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A UV sterilizer with a lamp self-locking structure includes: The lamp body structure includes a quartz sleeve, a lamp holder is slidably connected inside the quartz sleeve, an ultraviolet lamp is installed on the part of the lamp holder located inside the quartz sleeve, and a sterilizer shell that wraps around the quartz sleeve is fixedly installed on the outer wall of the quartz sleeve. A lamp tube self-locking structure includes a micro switch base slidably connected inside a quartz sleeve. The micro switch base is provided with an elastic button structure for controlling the lamp holder to be energized. When the micro switch base slides inside the quartz sleeve, the elastic button structure is compressed to energize the lamp holder. When the micro switch base is placed outside the quartz sleeve, the elastic button structure is released to de-energize the lamp holder. A sealing cover structure includes a locking nut mechanism and a dust cover. The locking nut mechanism is fixedly installed on the sterilizer housing. A dust cover is installed on the side of the locking nut mechanism away from the sterilizer housing. The dust cover and the locking nut mechanism seal the opening of the sterilizer housing. A cable is installed on the dust cover. The cable is used to power the elastic button structure and the lamp holder.

[0007] Furthermore, the locking nut mechanism includes a round sleeve and a locking nut fixedly installed on one side of the round sleeve. An external thread is provided on one side of the outer wall of the sterilizer housing. The locking nut is threaded onto the external thread. The round sleeve and the locking nut are concentric, and the inner diameter of the round sleeve is smaller than the inner diameter of the locking nut. One side of the sterilizer housing presses against the side wall of the round sleeve.

[0008] Furthermore, a sealing ring is provided at the part where the circular sleeve presses against the outer shell of the sterilizer.

[0009] Furthermore, the dust cover is sealed and installed on the side of the sleeve away from the locking nut, and the cable passes through the dust cover.

[0010] Furthermore, a cable hole is provided in the middle of the micro switch base, and the cable passes through the cable hole.

[0011] Furthermore, the elastic button structure includes a first sliding sleeve, a button block is slidably connected within the first sliding sleeve, a second elastic element is fixedly connected to the inner bottom of the first sliding sleeve, a second sliding sleeve is fixedly connected to the inner bottom of the first sliding sleeve, a second electrical contact plate is slidably connected within the second sliding sleeve, a first elastic element is fixedly connected between the second electrical contact plate and the inner bottom of the first sliding sleeve, and a first electrical contact plate is fixedly installed at the bottom of the button block, and the first electrical contact plate can make contact with the second electrical contact plate. A conductive plate is fixedly installed at the bottom of the button block. The conductive plate is connected to the first electrical contact plate. A fourth wire is also fixedly connected to the bottom of the conductive plate. The fourth wire passes through the first sliding sleeve and is connected to a second wire. The second wire is connected to one electrode of the lamp holder. A third wire is fixedly installed on the second electrical contact plate. The third wire passes through the second sliding sleeve and the first sliding sleeve and is connected to the first wire. The cable contains a first conductor and a lamp input line, and the lamp input line is connected to another electrode of the lamp holder. The micro switch base has a micro switch mounting hole on its top, and the first sliding sleeve is installed in the micro switch mounting hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are: An ultraviolet sterilizer with a lamp tube self-locking structure connects the lamp holder's wires to external wires through a designed micro-switch base. Then, it is placed inside a quartz sleeve, which allows the ultraviolet lamp tube to be powered after the quartz sleeve is sealed. Pulling out the micro switch socket will cut off the power to the lamp when it is removed from the sterilizer, thus preventing ultraviolet light from damaging the operator's eyes and skin. The device has a stable structure and is easy to install and disassemble. Attached Figure Description

[0013] Figure 1 This is a cross-sectional structural diagram of the device of this utility model; Figure 2 The device of this utility model Figure 1 An enlarged structural diagram at point A; Figure 3 This is a cross-sectional view of the micro switch base of the device of this utility model; Figure 4 This is a side view of the micro switch base of the device of this utility model; Figure 5 A cross-sectional view of the micro switch base for mounting the elastic button structure of the device of this utility model; Figure 6 The device of this utility model Figure 5 A magnified structural diagram at point B.

[0014] Figure label: 1. Sterilizer housing; 2. Quartz sleeve; 3. Ultraviolet lamp; 4. Lamp holder; 5. External thread; 6. Sealing ring; 7. Micro switch holder; 8. Dust cover; 9. Cable; 10. Cable hole; 11. Micro switch mounting hole; 12. Locking nut; 13. Lamp input wire; 14. First conductor; 15. Second conductor; 16. First sliding sleeve; 17. Button block; 18. Second sliding sleeve; 19. First elastic element; 20. Third conductor; 21. First electrical contact plate; 22. Second electrical contact plate; 23. Circular sleeve; 24. Fourth conductor; 25. Conductive plate; 26. Second elastic element. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0016] Example 1: refer to Figure 1-6 The image shows a UV sterilizer with a lamp self-locking mechanism, including: The lamp body structure includes a quartz sleeve 2, a lamp holder 4 is slidably connected inside the quartz sleeve 2, an ultraviolet lamp tube 3 is installed on the part of the lamp holder 4 located inside the quartz sleeve 2, and a sterilizer shell 1 that wraps around the quartz sleeve 2 is fixedly installed on the outer wall of the quartz sleeve 2. The sealing cover structure includes a locking nut mechanism and a dust cover 8. The locking nut mechanism is fixedly installed on the sterilizer housing 1. The dust cover 8 is installed on the side of the locking nut mechanism away from the sterilizer housing 1. The dust cover 8 and the locking nut mechanism seal the opening of the sterilizer housing 1. A cable 9 is sealed and installed on the dust cover 8. The cable 9 is used to power the elastic button structure and the lamp holder 4.

[0017] In this preferred embodiment, the locking nut mechanism includes a circular sleeve 23 and a locking nut 12 fixedly installed on one side of the circular sleeve 23. An external thread 5 is provided on one side of the outer wall of the sterilizer housing 1. The locking nut 12 is threaded onto the external thread 5. The circular sleeve 23 and the locking nut 12 are concentric, and the inner diameter of the circular sleeve 23 is smaller than the inner diameter of the locking nut 12. One side of the sterilizer housing 1 presses against the side wall of the circular sleeve 23.

[0018] Specifically, the quartz sleeve 2 is a tube with an opening on one side. A lamp holder 4 is slidably connected inside the quartz sleeve 2, and an ultraviolet lamp tube 3 is installed on the part of the lamp holder 4 located inside the quartz sleeve 2.

[0019] A sterilizer housing 1 is fixedly installed on the outer side of the quartz sleeve 2 near the opening. The sterilizer housing 1 encloses the quartz sleeve 2, covering all parts except the opening of the quartz sleeve 2. The figure only shows part of the structure of the sterilizer housing 1. Those skilled in the art should understand the technical means by which the sterilizer housing 1 can enclose the quartz sleeve 2.

[0020] The opening of the quartz sleeve 2 is set to the left side. The outer wall of the sterilizer housing 1 has an external thread 5 on the left side.

[0021] A locking nut 12 is fixedly connected to the right side of the round sleeve 23. The locking nut 12 is threadedly connected to the outer left wall of the sterilizer housing 1.

[0022] The circular sleeve 23 is concentric with the locking nut 12 and the inner diameter of the circular sleeve 23 is smaller than the inner diameter of the locking nut 12. One side of the sterilizer shell 1 presses against the side wall of the circular sleeve 23.

[0023] In this preferred embodiment, a sealing ring 6 is provided at the part where the sterilizer shell 1 and the circular sleeve 23 are released from compression.

[0024] Furthermore, a dust cover 8 is sealed on the left side of the circular sleeve 23. The middle part of the dust cover 8 is a rubber block with a wire hole in the middle, through which the cable 9 passes.

[0025] The cable 9 contains a lamp input line 13 and a first conductor 14 to provide a closed circuit for the two electrodes of the lamp holder 4.

[0026] Example 2: Based on Example 1, an additional technical means is added to enable the ultraviolet lamp 3 to be automatically energized after the lamp is installed in the quartz sleeve 2, and to automatically de-energize the ultraviolet lamp 3 when the lamp is removed.

[0027] An ultraviolet sterilizer with a lamp self-locking structure further includes: The lamp tube has a self-locking structure, which includes a micro switch base 7. The micro switch base 7 is slidably connected inside the quartz sleeve 2. The micro switch base 7 is provided with an elastic button structure that controls the lamp holder 4 to be energized. When the micro switch base 7 slides inside the quartz sleeve 2, the elastic button structure is compressed, which energizes the lamp holder 4. When the micro switch base 7 is placed outside the quartz sleeve 2, the elastic button structure is released, which de-energizes the lamp holder 4.

[0028] The elastic button structure includes a first sliding sleeve 16, a button block 17 is slidably connected inside the first sliding sleeve 16, a second elastic element 26 is fixedly connected between the button block 17 and the inner bottom of the first sliding sleeve 16, a second sliding sleeve 18 is fixedly connected to the inner bottom of the first sliding sleeve 16, a second electrical contact plate 22 is slidably connected inside the second sliding sleeve 18, a first elastic element 19 is fixedly connected between the second electrical contact plate 22 and the inner bottom of the first sliding sleeve 16, and a first electrical contact plate 21 is fixedly installed at the bottom of the button block 17, and the first electrical contact plate 21 can make contact with the second electrical contact plate 22. A conductive plate 25 is fixedly installed at the bottom of the button block 17. The conductive plate 25 is connected to the first electrical contact plate 21. A fourth wire 24 is also fixedly connected to the bottom of the conductive plate 25. The fourth wire 24 passes through the first sliding sleeve 16 and is connected to the second wire 15. The second wire 15 is connected to one electrode of the lamp holder 4. A third wire 20 is fixedly installed on the second electrical contact plate 22. The third wire 20 passes through the second sliding sleeve 18 and the first sliding sleeve 16 and is connected to the first wire 14. The cable 9 contains a first conductor 14 and a lamp input line 13, which is connected to the other electrode of the lamp holder 4.

[0029] Specifically, the cross-section of the microswitch base 7 is annular. The outer diameter of the cable 9 is slightly smaller than the cable hole 10 in the middle of the microswitch base 7.

[0030] Furthermore, the top of the micro switch base 7 has a micro switch mounting hole 11. The first sliding sleeve 16 is installed inside the micro switch mounting hole 11, and the second sliding sleeve 18 is installed at the bottom of the first sliding sleeve 16. In the initial state, the second elastic element 26 and the first elastic element 19 are in a relaxed state. At this time, the height of the button block 17 is higher than that of the micro switch base 7, and the first electrical contact plate 21 and the second electrical contact plate 22 are not in contact. When the micro switch base 7 is placed inside the quartz sleeve 2, pressing the button block 17 will cause the first electrical contact plate 21 and the second electrical contact plate 22 to make contact and conduct electricity.

[0031] Note that the first sliding sleeve 16, the second elastic element 26, the first elastic element 19, the second sliding sleeve 18, and the button block 17 are all made of non-conductive material. The conductive plate 25, the first electrical contact plate 21, and the second electrical contact plate 22 are made of conductive material.

[0032] The first conductor 14 inside the cable 9 is first connected to the third conductor 20, and then the third conductor 20 is connected to the second electrical contact plate 22.

[0033] When the button block 17 is pressed, the first electrical contact plate 21 is connected to the second electrical contact plate 22, the first electrical contact plate 21 is connected to the conductive plate 25, the conductive plate 25 is connected to the fourth wire 24, the fourth wire 24 is connected to the second wire 15, and the lamp tube input line 13 and the second wire 15 are connected to the two poles of the lamp holder 4, so that the ultraviolet lamp tube 3 is energized.

[0034] The other features of Example 2 are the same as those of Example 1.

[0035] The basic working principle of this utility model is as follows: In practice, when installing the ultraviolet lamp tube 3, the ultraviolet lamp tube 3 is placed flat inside the quartz sleeve 2. At this time, the micro switch seat 7 is pushed into the quartz sleeve 2, and the micro switch seat 7 blocks the opening of the quartz sleeve 2 to prevent ultraviolet leakage.

[0036] The cable 9 passes through the dust cover 8, and the lamp input line 13 and the first conductor 14 inside the cable 9 are electrically connected to the corresponding conductors.

[0037] Then, pressing button block 17 causes the first electrical contact plate 21 and the second electrical contact plate 22 to make contact, energizing the ultraviolet lamp 3. Rotating the circular sleeve 23 and locking nut 12 allows the locking nut 12 to be installed on the sterilizer housing 1. At this point, the cable 9 can rotate relative to the dust cover 8, completing the installation of the ultraviolet lamp 3. Furthermore, the microswitch base 7, after being installed in the quartz sleeve 2, automatically locks the electrical connection between the first electrical contact plate 21 and the second electrical contact plate 22, ensuring the ultraviolet lamp 3 maintains a stable connection.

[0038] When it is necessary to replace the ultraviolet lamp 3, rotate the circular sleeve 23 and tighten the locking nut 12 to detach it from the sterilizer housing 1. The cable 9 can then move horizontally relative to the dust cover 8. At this time, pulling the cable 9 will cause the micro switch base 7 to gradually move outside the quartz sleeve 2. When the button block 17 on the micro switch base 7 detaches from the quartz sleeve 2, it will automatically pop out. At this time, the first electrical contact plate 21 and the second electrical contact plate 22 will separate, and the ultraviolet lamp 3 will lose power. This ensures that the ultraviolet lamp 3 is automatically de-energized during maintenance, protecting the safety of maintenance personnel.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A UV sterilizer with a lamp self-locking structure, comprising: The lamp body structure includes a quartz sleeve (2), a lamp holder (4) is slidably connected inside the quartz sleeve (2), an ultraviolet lamp tube (3) is installed on the part of the lamp holder (4) located inside the quartz sleeve (2), and a sterilizer shell (1) is fixedly installed on the outer wall of the quartz sleeve (2) to enclose it; characterized in that, It also includes a lamp tube self-locking structure, which includes a micro switch base (7), which is slidably connected inside the quartz sleeve (2). The micro switch base (7) is provided with an elastic button structure for controlling the lamp holder (4) to be energized. When the micro switch base (7) slides inside the quartz sleeve (2), the elastic button structure is compressed to energize the lamp holder (4). When the micro switch base (7) is placed outside the quartz sleeve (2), the elastic button structure is released to de-energize the lamp holder (4). The sealing cover structure includes a locking nut mechanism and a dust cover (8). The locking nut mechanism is fixedly installed on the sterilizer housing (1). The dust cover (8) is installed on the side of the locking nut mechanism away from the sterilizer housing (1). The dust cover (8) and the locking nut mechanism seal the opening of the sterilizer housing (1). A cable (9) is installed on the dust cover (8). The cable (9) is used to power the elastic button structure and the lamp holder (4).

2. The ultraviolet sterilizer with a lamp self-locking structure according to claim 1, characterized in that, The locking nut mechanism includes a round sleeve (23) and a locking nut (12) fixedly installed on one side of the round sleeve (23). The outer wall of one side of the sterilizer housing (1) is provided with an external thread (5). The locking nut (12) is threaded onto the external thread (5). The round sleeve (23) and the locking nut (12) are concentric and the inner diameter of the round sleeve (23) is smaller than the inner diameter of the locking nut (12). One side of the sterilizer housing (1) presses against the side wall of the round sleeve (23).

3. The ultraviolet sterilizer with a lamp self-locking structure according to claim 2, characterized in that, A sealing ring (6) is provided at the part where the round sleeve (23) presses against the sterilizer shell (1).

4. A UV sterilizer with a lamp self-locking structure according to claim 2, characterized in that, The dust cover (8) is sealed and installed on the side of the sleeve (23) away from the locking nut (12), and the cable (9) passes through the dust cover (8).

5. A UV sterilizer with a lamp self-locking structure according to claim 1, characterized in that, The micro switch base (7) has a cable hole (10) in the middle, and the cable (9) passes through the cable hole (10).

6. A UV sterilizer with a lamp self-locking structure according to claim 1, characterized in that, The elastic button structure includes a first sliding sleeve (16), a button block (17) is slidably connected inside the first sliding sleeve (16), a second elastic element (26) is fixedly connected to the inner bottom of the button block (17) and the first sliding sleeve (16), a second sliding sleeve (18) is fixedly connected to the inner bottom of the first sliding sleeve (16), a second electrical contact plate (22) is slidably connected inside the second sliding sleeve (18), a first elastic element (19) is fixedly connected between the second electrical contact plate (22) and the inner bottom of the first sliding sleeve (16), a first electrical contact plate (21) is fixedly installed at the bottom of the button block (17), and the first electrical contact plate (21) can make contact with the second electrical contact plate (22). A conductive plate (25) is fixedly installed at the bottom of the button block (17). The conductive plate (25) is connected to the first electrical contact plate (21). A fourth wire (24) is also fixedly connected at the bottom of the conductive plate (25). The fourth wire (24) passes through the first sliding sleeve (16) and is connected to the second wire (15). The second wire (15) is connected to one electrode of the lamp holder (4). A third wire (20) is fixedly installed on the second electrical contact plate (22). The third wire (20) passes through the second sliding sleeve (18) and the first sliding sleeve (16) and is connected to the first wire (14). The cable (9) is provided with a first conductor (14) and a lamp input line (13), and the lamp input line (13) is connected to the other electrode of the lamp holder (4); The micro switch base (7) has a micro switch mounting hole (11) on its top, and the first sliding sleeve (16) is installed in the micro switch mounting hole (11).

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