Double-lamp-tube hair removing instrument

Abstract

The invention discloses a double-lamp-tube hair removal instrument, and belongs to the technical field of hair removal instruments, an inner shell is slidably mounted in an outer shell of a light emitting end of the hair removal instrument, and a semiconductor refrigeration unit with one side exposed out of the inner shell is mounted in the inner shell; the heat dissipation pipe comprises two telescopic pipe sections which are parallel and opposite to each other and can stretch out and draw back, the two side faces of the two telescopic pipe sections are integrally connected with branch pipe sections correspondingly, and the ends of the telescopic pipe sections and the fixing blocks are attached and fixed into a whole; one end of an annular air bag is connected to the edge of the surface of the side, away from the semiconductor refrigeration unit, of the fixing block, the annular air bag is pre-filled with gas, an exhaust valve is installed on the side wall of the annular air bag, and the other end of the annular air bag is arranged in an annular installation groove in the inner wall of the shell. And the semiconductor refrigeration unit completely retreats into the light emitting end of the shell. On the premise that the heat dissipation performance is considered, the safety problem caused by insufficient heat dissipation performance and the hair removal effect are made up and improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hair removal devices, in particular to a double-lamp tube hair removal device. Background Art

[0002] A dual-lamp hair removal device is a hair removal device that uses a dual-lamp design. Compared to conventional hair removal devices, the main difference is the addition of a lamp, which aims to provide higher energy and stronger hair removal results. This dual-lamp design allows the hair removal device to emit greater energy, thereby releasing more energy per unit time, effectively inhibiting hair growth. Like conventional single-lamp hair removal devices, dual-lamp hair removal devices work based on the principle of photothermal effect. They emit light beams of a specific wavelength that can penetrate the surface of the skin and directly reach the hair follicles. The melanin in the hair follicles absorbs the light energy and converts it into heat energy, causing the hair follicles and surrounding tissues to heat up, eventually causing the hair follicles to shrink and necrotize due to the heat, thus losing the ability to grow hair.

[0003] Since hair removal devices, especially those with dual lamps, release energy and generate a lot of heat when working, the hair removal devices must be equipped with heat dissipation elements inside to dissipate heat in a timely manner, maintain the performance of the hair removal device, and avoid accidents such as overheating that may cause skin burns. In order to achieve heat dissipation of hair removal devices, those skilled in the art have studied hair removal devices with various structures. For example, Chinese patent publication number CN213588473 U describes a hair removal device, which mainly includes a housing assembly, a light output assembly arranged in the housing assembly, a cooling module arranged near the light output assembly, and a heat dissipation assembly including a heat sink group, a heat pipe and a heat dissipation fan. The light output assembly is used to generate light waves with a hair removal effect, the cooling module is used to cool the skin area irradiated by the light waves, and the heat dissipation assembly is mainly used to conduct heat from the cooling module. At the same time, by comparing the heat dissipation structure of a dual-lamp hair removal device recorded in the patent with publication number CN222424526U, it can be clearly seen that the main structural components of the two are basically the same, and the principles are similar. Both use heat dissipation elements such as cooling fans and heat pipes for heat dissipation. Moreover, the dual-lamp structure is just a pair of lamps arranged in parallel on the basis of a single lamp to enhance the energy release effect.

[0004] The hair removal device in the existing patent with the above-mentioned publication number CN213588473U contacts the refrigeration module through a heat dissipation pipe. The heat dissipation pipe conducts the heat generated by the refrigeration module to the various heat dissipation fins in the heat sink group, thereby timely cooling the refrigeration module and ensuring that the refrigeration module can continuously cool the skin so as to perform the hair removal operation and ensure the hair removal effect. However, the heat dissipation structure design adopted by it is only to connect the arc-shaped curved section of the roughly U-shaped heat dissipation pipe with a flat fixed block as an integral whole, so that the fixed block is in contact with the refrigeration module for heat transfer. Under this heat dissipation structure, the contact area between the heat dissipation pipe and the fixed block is limited, and it is not easy to transfer the heat in time. Moreover, the prior art does not clearly indicate how the heat dissipation component or the heat dissipation pipe is connected to the refrigeration module through the fixed block to fully dissipate heat. It only mentions that the refrigeration module cools the skin part irradiated by the light wave through the semiconductor refrigeration element. Therefore, it is necessary to clarify a more specific and feasible heat dissipation structure to implement its cooling and heat dissipation performance, because this not only affects the normal working performance of the hair removal device, but also affects its safe use. For example, during use, if the heat dissipation is not timely, especially for a dual-lamp hair removal device, once the refrigeration module in contact with the skin becomes hot, not only can the hair not be removed well, but the skin may also be accidentally scalded. After all, for a dual-lamp hair removal device, it has greater energy and generates more heat, so this problem needs special attention. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the present invention provides a dual-lamp tube hair removal device to solve the problem that the dual-lamp tube hair removal device in the existing technology generates more heat due to the greater energy released, and requires more sufficient and timely heat dissipation while also taking safety protection into consideration.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dual-lamp tube hair removal device, comprising a heat dissipation component and a refrigeration module, the heat dissipation component comprising a heat dissipation pipe and a fixed block, the refrigeration module comprising a semiconductor refrigeration unit fitted and connected to the fixed block, an inner shell is also axially slidably installed in the outer shell of the light-emitting end of the hair removal device, and the inner shell is equipped with the semiconductor refrigeration unit with one side exposed from the inner shell; the fixed block and the semiconductor refrigeration unit are both plate-shaped structures with a rectangular light-transmitting hole in the middle, the heat dissipation pipe comprises two telescopic pipe sections arranged parallel to each other and capable of extension, the two sides of the two telescopic pipe sections are respectively integrally connected with two [-shaped branch pipe sections for heat dissipation, and the ends of the telescopic pipe sections are fitted and fixed to the fixed block. The semiconductor refrigeration unit is integrated into one body, and at least half of the branch pipe section is embedded in the fixed block; one end of an annular airbag is connected to the edge of the surface of the fixed block away from the semiconductor refrigeration unit, the annular airbag is pre-filled with gas, and an exhaust valve is installed on its side wall, and the other end of the annular airbag is built into an annular mounting groove on the inner wall of the outer shell, so that the sliding telescopic part composed of the semiconductor refrigeration unit and the inner shell is slidably mounted in the outer shell in the form of elastic expansion, and under normal conditions, the end of the inner shell is exposed outside the light-emitting end of the outer shell, and when the fixed block is heated to a corresponding degree, the gas in the annular airbag expands and pushes open the exhaust valve, and the sliding telescopic part as a whole is completely retracted into the light-emitting end of the outer shell.

[0009] Furthermore, the semiconductor refrigeration unit includes a hot plate, a semiconductor galvanic plate, and a cold plate in contact with each other. The hot plate is a ceramic substrate. The semiconductor galvanic plate includes a metal conductor and a semiconductor galvanic plate connected to each other as a whole. The cold plate is made of transparent crystal.

[0010] Furthermore, the hot plate and the fixing block are fixed together as a whole, and the cold plate is exposed outside the port of the inner shell.

[0011] Furthermore, the telescopic pipe section includes an outer pipe section and an inner pipe section, the outer pipe section is fixed to the fixing block as a whole, and the inner pipe section is inserted into the outer pipe section in an axially sliding manner.

[0012] Furthermore, heat transfer oil is coated between the inner pipe section and the outer pipe section, a sealing ring is installed on the pipe wall at the end of the inner pipe section, and the inner pipe section passes through the sealing ring in a squeeze contact manner.

[0013] Furthermore, one end of the annular airbag is completely open, and a rectangular heat-conducting ring is fixed at the edge of the fixed block. The middle of the heat-conducting ring has an annular protrusion, which extends into the annular airbag. The wall end of the open end of the annular airbag is sealed with the sinking table on both sides of the heat-conducting ring to seal the protrusion completely inside the annular airbag.

[0014] Furthermore, a surface of the raised portion facing the inside of the annular airbag is provided with a plurality of annular heat dissipation frames.

[0015] Furthermore, the side of the protrusion facing the inside of the annular airbag is connected to the inner top wall of the annular airbag through a return spring, and under normal circumstances, due to the expansion of the annular airbag, the return spring is always in a stretched state, and after the exhaust valve is opened, the return spring quickly pulls the heat conductive ring toward the annular mounting groove.

[0016] Furthermore, the exhaust valves are provided in a plurality and arranged in an annular array outside the annular airbag, and the exhaust valves are communicated with the outside of the outer shell.

[0017] Furthermore, the valve core of the exhaust valve includes a first slider and a second slider connected together by a pressure spring; the outer wall of the annular airbag has a raised air nozzle, which is located in the valve hole opened on the shell wall of the outer shell, and the valve core is installed in the valve hole. The initial position of the two sliders can close the inlet end of the exhaust flow channel opened on the shell of the outer shell; a screw plug is installed at the orifice of the valve hole, and a magnet is embedded in one end of the screw plug located in the valve hole. When the annular airbag is exhausted outward through the air nozzle, the valve core is pushed to slide to expose the inlet end, and the valve core is quickly attracted and fixed by the magnet because it moves closer to the screw plug.

[0018] (3) Beneficial effects

[0019] The present invention provides a dual-lamp hair removal device. Briefly, it primarily has the following beneficial effects: The heat dissipation structure of the dual-lamp hair removal device maintains or even improves the heat dissipation performance of conventional dual-lamp hair removal devices, specifically providing sufficient cooling for the greater heat generated by the high energy release of the dual-lamp hair removal devices. Furthermore, taking advantage of the high heat output of the dual-lamp hair removal devices, the device better maintains the skin's temperature during hair removal, facilitating smooth hair removal. Furthermore, the dual-lamp hair removal device also offers significant anti-scald protection, enabling the refrigeration module to promptly disengage from the skin when heat dissipation is insufficient, thus providing a safety measure. Furthermore, the device also prevents the hair removal efficiency from being affected by overheating of the skin when cooling and heat dissipation are insufficient. Furthermore, the annular airbag employed ensures comfortable contact and smooth movement of the semiconductor refrigeration unit from the skin, enabling faster and more comfortable hair removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the hair removal end of the dual-lamp hair removal device of the present invention;

[0021] Figure 2 This is a schematic diagram of the connection between the heat pipe and the fixed block;

[0022] Figure 3This is a schematic diagram of the connection between the fixing block with a heat-conducting ring and the heat dissipation pipe;

[0023] Figure 4 is an axial cross-sectional view of the annular airbag;

[0024] Figure 5 It is the right side view of the annular airbag;

[0025] Figure 6 for Figure 1 A magnified structural diagram at center A;

[0026] Figure 7-Figure 8 Schematic diagrams of two structures of telescopic pipe sections.

[0027] In the figure: outer shell 1, annular mounting groove 101, inner shell 2, semiconductor refrigeration unit 3, telescopic pipe section 4, outer pipe section 401, inner pipe section 402, sealing ring 403, thermal rib plate 404, branch pipe section 5, fixing block 6, rectangular light-transmitting hole 7, annular airbag 8, air nozzle 801, valve hole 902, thermal conductive ring 10, protrusion 1001, heat dissipation frame 11, return spring 12, valve core 13, first slider 1301, pressure spring 1302, second slider 1303, screw plug 14, magnet 15, exhaust flow channel 16. DETAILED DESCRIPTION

[0028] This specification will clearly and completely express the technical solutions in the following embodiments based on the drawings of the embodiments of the present invention. The implementation methods described in this specification are only some of the embodiments of the present invention, not all of them. All other embodiments derived from these embodiments in this application by persons of ordinary skill in the art without any creative effort should fall within the scope of protection of the present invention.

[0029] like Figure 1-3 The dual-lamp hair removal device shown has the same main structure as the existing dual-lamp hair removal devices. The main difference from the common single-lamp hair removal device is that a pair of lamps are provided. The other structures have no obvious changes. Therefore, this embodiment will not elaborate on the installation structure of the lamps, nor will it elaborate on the integrated structure of the heat sink and the heat pipe of the heat dissipation assembly. Those skilled in the art can refer to the existing relevant technical literature or the existing patented technologies listed in the background technology for implementation. Specifically, the dual-lamp hair removal device, like the existing general hair removal devices, includes a heat dissipation assembly and a refrigeration module. The heat dissipation assembly includes a heat pipe with heat dissipation and a fixed block 6. The refrigeration module includes a semiconductor refrigeration unit 3 that is fitted with the fixed block 6. The semiconductor refrigeration unit 3 contacts the skin and cools the irradiated area of ​​the skin. An inner shell 2 is also axially slidably installed in the outer shell 1 of the light-emitting end of the hair removal device, as shown in FIG. Figure 1As shown, under set conditions, the inner shell 2 can slide horizontally in the outer shell 1, that is, it can move telescopically at the end of the outer shell 1. More specifically, a semiconductor refrigeration unit 3 with one side exposed from the inner shell 2 is installed in the inner shell 2 so as to be in contact with the skin or close to the skin. The fixing block 6 and the semiconductor refrigeration unit 3 are both plate-like structures with a rectangular light-transmitting hole 7 in the middle, and the heat dissipation pipe includes two telescopic pipe sections 4 that are arranged parallel to each other and can be telescoped. That is, when the inner shell 2 moves telescopically in the outer shell 1, the telescopic pipe section 4 can adaptively expand and contract to change its length to allow the inner shell 2 and the corresponding components inside it to move. As shown Figure 3 As shown, in this embodiment, two side surfaces of the two telescopic pipe sections 4 are further integrally connected with two [-shaped branch pipe sections 5 for heat dissipation. The branch pipe sections 5 are used to contact the fixed block 6 to quickly conduct heat. During manufacturing, the ends of the telescopic pipe sections 4 are fitted and fixed to the fixed block 6 as a whole, and at least half of the branch pipe sections 5 are embedded in the fixed block 6. As a key design structure, Figure 1 and Figure 6 At the edge of the surface of the fixed block 6 facing away from the semiconductor refrigeration unit 3, one end of the annular airbag 8 is connected. The structure of the annular airbag 8 is as follows: Figure 4-Figure 5 As shown. During production, the annular airbag 8 must be pre-filled with gas, preferably a certain amount of inert gas or a heat-sensitive gas that easily expands when heated. At the same time, an exhaust valve is installed on the side wall of the annular airbag 8, which is used to quickly release the gas in the annular airbag 8 under set conditions, allowing the annular airbag 8 to instantly shrink like a filled balloon. Specifically, when installing, Figure 6 As shown, the other end of the annular airbag 8 is built into an annular mounting groove 101 on the inner wall of the outer shell. With the help of the expansion and supporting effect of the gas, the sliding and retractable member composed of the semiconductor refrigeration unit 3 and the inner shell can be slidably installed in the outer shell in an elastic and retractable manner. At this time, not only can the exhaust valve be quickly contracted when the temperature inside the annular airbag 8 soars to a set level, so that the inner shell 2 can be retracted into the outer shell 1, but the semiconductor refrigeration unit 3 in the inner shell 2 can also be quickly retracted into the outer shell, breaking away from contact with the skin, or away from contact with the skin, thereby playing a protective role. Generally speaking, under normal conditions, that is, when the heat dissipation performance of the hair removal device is normal, the end of the inner shell 2 is exposed outside the light-emitting end of the outer shell 1 so that the semiconductor cooling unit can contact the skin. When the fixed block 6 heats up to a corresponding level, the gas in the annular airbag 8 is heated and rapidly expands, pushing open the exhaust valve, and the annular airbag 8 rapidly contracts, causing the sliding and retracting member as a whole to completely retract into the light-emitting end of the outer shell.

[0030] As a specific implementation structure, the semiconductor refrigeration unit 3 includes, in sequence, a hot plate, a semiconductor galvanic plate, and a cold plate that are in contact with each other and bonded together. These three plates are all rectangular plates and have a rectangular hole in the middle to form the above-mentioned rectangular light-transmitting hole 7. Specifically, the above-mentioned hot plate is a ceramic substrate, the semiconductor galvanic plate includes a metal conductor and a semiconductor galvanic plate that are connected to each other as a whole, and the cold plate is made of transparent crystal. This transparent crystal is made of a light-transmitting material with high heat resistance, high light transmittance, and high thermal conductivity, such as natural crystal. The ends of the above-mentioned semiconductor galvanic plate are connected to positive and negative electrodes to connect to the power supply. Specifically, the cold plate and the hot plate can be metallized on the side facing the semiconductor galvanic plate so that they can be welded and fixed to the metal conductor of the semiconductor galvanic plate. Specifically in practice, the semiconductor galvanic plate is bonded and fixed to the cold plate and the hot plate by glue with good thermal conductivity such as silicone. The heat conduction principle utilizes the Peltier effect of semiconductor materials. This involves a circuit with a conductor inside the semiconductor galvanic plate connecting to a NP semiconductor galvanic couple. When direct current passes through the galvanic couple formed by the series connection of two different semiconductors, N and P, heat is transferred from one end to the other, or from one area to another, resulting in a cooler area with a lower temperature at one end or one area.

[0031] In the above embodiment, the hot plate and the fixing block 6 are fixed together as a whole, and the cold plate is exposed outside the port of the inner shell 2 to cool the skin. Figure 7-Figure 8 As shown, the telescopic pipe section 4 includes an outer pipe section 401 and an inner pipe section 402. The outer pipe section 401 is fixed to the fixing block 6 as a whole, and the inner pipe section 402 is inserted into the outer pipe section 401 in an axially sliding manner, so that the semiconductor cooling unit always maintains heat conduction contact when the inner shell 2 is retracted into the outer shell 1. In order to improve the heat conduction efficiency, heat conduction oil is coated between the inner pipe section 402 and the outer pipe section 401, and a sealing ring 403 is installed on the pipe wall at the port of the inner pipe section 402. The inner pipe section 402 passes through the sealing ring 403 in an extruded contact to seal the heat conduction oil, thereby compensating for the reduction in heat conduction caused by the non-integrated molding of the heat dissipation pipes. The insertion between the inner pipe section 402 and the outer pipe section 401 can even be directly The joint is designed to be an axial sliding fit similar to a spline. For example, the sliding fit at the bottom end of the inner pipe section 402 has several heat-conducting ribs 404 in an annular array on the surface of the pipe section. These heat-conducting ribs 404 slide vertically with the strip slides in an annular array on the inner wall of the outer pipe section 401 to form a structure similar to a spline fit. It not only slides and contracts axially very well, but also greatly improves the contact area of ​​the heat-conducting contact. The heat-conducting oil compensates for the loss of thermal conductivity caused by the non-integrated molding of the heat pipe to the maximum extent. Moreover, due to the use of auxiliary heat transfer of the branch pipe section 5, it can still improve the heat dissipation performance overall while avoiding the problem of skin burns or reduced hair removal effect caused by failure or insufficient heat dissipation of the heat dissipation component.

[0032] like Figure 4-Figure 6 In this embodiment, one end of the annular airbag 8 is completely open, and a rectangular heat-conducting ring 10 is fixed to the edge of the fixing block 6. Figure 3 and Figure 6 In the middle of the heat-conducting ring 10, there is a circular rectangular protrusion 1001, which extends into the annular airbag 8. The wall end of the open end of the annular airbag 8 is sealed with the sinking table surface on both sides of the heat-conducting ring 10, so that the protrusion 1001 is completely sealed in the annular airbag 8. When the fixing plate is overheated, or when the entire heat dissipation component fails or the heat dissipation is not sufficient, the heat-conducting ring 10 with a sudden increase in temperature will cause the gas in the annular airbag 8 to expand rapidly, rushing open the exhaust valve, and quickly retracting the inner shell 2 and the semiconductor refrigeration unit 3 into the outer shell 1 to prevent burns and avoid affecting the hair removal effect. In addition, if Figure 3 and Figure 6 In this embodiment, the raised portion 1001 is provided with a plurality of annular heat dissipation frames 11 on one side surface facing the annular airbag 8 to quickly and timely transfer heat to the annular airbag 8, and quickly respond and feedback to the heat dissipation condition.

[0033] In order to allow the inner shell 2 and other components to be retracted into the outer shell 1 in time, Figure 6 The side of the protrusion 1001 facing the inside of the annular airbag 8 is connected to the inner top wall of the annular airbag 8 via the return spring 12. Under normal circumstances, due to the expansion of the annular airbag 8, the return spring 12 is always in a stretched state. That is, the return spring 12 is stretched because the annular airbag 8 is inflated. After the exhaust valve is opened, this gas expansion force is lost, and the return spring 12 needs to recover. Therefore, it quickly pulls the heat conductive ring 10 toward the annular mounting groove 101, promoting the retraction speed of the inner shell 2 and the semiconductor refrigeration unit 3. In order to improve the speed of timely retraction, the exhaust valve in this embodiment is provided with multiple exhaust valves in an annular array outside the annular airbag 8, and the exhaust valves are connected to the outside of the outer shell 1 for timely exhaust.

[0034] As specific implementation details, such as Figure 6 The valve core 13 of the exhaust valve includes a first slider 1301 and a second slider 1303 connected together by a pressure spring 1302. The first slider 1301 can be T-shaped, and the backs of the two sliders can each fix a sealing gasket. There is a raised air nozzle 801 on the outer wall of the annular airbag 8. The air nozzle 801 is located in the valve hole 902 opened on the shell wall of the outer shell 1. The valve core 13 is installed in this valve hole 902. The initial position of the two sliders can close the inlet end of the exhaust flow channel 16 opened on the shell of the outer shell 1.

[0035] In addition, a screw plug 14 is installed at the orifice of the valve hole 902. One end of the screw plug 14 located in the valve hole 902 is embedded with a magnet 15. When the annular air bag 8 is exhausted outward through the air nozzle 801, the valve core 13 is pushed to slide and expose the inlet end, allowing the gas to be quickly exhausted. Moreover, the valve core 13 is further moved toward the screw plug 14, and is quickly attracted and fixed by the magnet 15. Initially, due to the long distance, the valve core 13 cannot be sucked away. Therefore, only when the valve core 13 moves a certain distance during exhaust can it be attracted and fixed by the magnet 15, allowing the entire annular air bag 8 to be fully, timely and fully exhausted. In use, the valve core 13 can also be sucked out by some strong bar magnets. After the screw plug 14 is covered, gas is injected through the exhaust flow channel 16 to restore the filling state of the annular air bag 8 and reset the inner housing 2.

[0036] It should be explained here that, in this specification, terms such as first and second are only used to distinguish one feature from another, and do not mean that there is a certain relationship or order between these technical features. The terms "include" and "comprise" refer to the inclusion of one or certain technical means or features, specifically meaning that there are other existing or non-existing technical features that have not been included. The discussion in the above embodiments is only a referential example for the present invention, and is by no means the only restrictive constraint feature. Those skilled in the art should understand that, without departing from the technical content recorded in all claims of this application, some simple replacements and modifications can be made, thereby changing or becoming equivalent to other specific embodiments and application scenarios. However, no matter how the adaptive changes are made, these embodiments will inevitably fall within the scope of protection of the present invention.

Claims

1. A double-lamp hair removal device, comprising a heat dissipation component and a refrigeration module, wherein the heat dissipation component comprises a heat dissipation pipe and a fixing block (6) having heat dissipation properties, and the refrigeration module comprises a semiconductor refrigeration unit (3) which is closely connected to the fixing block (6), characterized in that: An inner shell (2) is also axially slidably mounted inside the outer shell (1) of the light-emitting end of the hair removal device, and the semiconductor refrigeration unit (3) is mounted in the inner shell (2) with one side exposed from the inner shell (2); The fixed block (6) and the semiconductor refrigeration unit (3) are both plate-like structures with a rectangular light-transmitting hole (7) in the middle. The heat dissipation pipe comprises two telescopic pipe sections (4) arranged parallel to each other and capable of extension and contraction. Two side surfaces of the two telescopic pipe sections (4) are respectively integrally connected with two [-shaped branch pipe sections (5) for heat dissipation. The ends of the telescopic pipe sections (4) are fitted and fixed to the fixed block (6) as a whole, and at least half of the branch pipe section (5) is embedded in the fixed block (6). One end of an annular airbag (8) is connected to the edge of the surface of the fixed block (6) facing away from the semiconductor refrigeration unit (3), the annular airbag (8) is pre-filled with gas, and an exhaust valve is installed on its side wall. The other end of the annular airbag (8) is built into an annular mounting groove (101) on the inner wall of the outer shell, so that the sliding telescopic part composed of the semiconductor refrigeration unit (3) and the inner shell is slidably installed in the outer shell in an elastic and telescopic manner, and in a normal state, the end of the inner shell (2) is exposed outside the light-emitting end of the outer shell (1), and when the fixed block (6) is heated to a corresponding degree, the gas in the annular airbag (8) expands and pushes open the exhaust valve, and the sliding telescopic part as a whole is completely retracted into the light-emitting end of the outer shell.

2. A double-lamp hair removal device according to claim 1, characterized in that: The semiconductor refrigeration unit (3) comprises a hot plate, a semiconductor thermocouple plate and a cold plate in sequence, which are in contact with each other. The hot plate is a ceramic substrate. The semiconductor thermocouple plate comprises a metal conductor and a semiconductor thermocouple which are connected to each other as a whole. The cold plate is made of transparent crystal.

3. A double-lamp hair removal device according to claim 2, characterized in that: The hot plate and the fixing block (6) are fitted and fixed as a whole, and the cold plate is exposed outside the port of the inner shell (2).

4. A double-lamp hair removal device according to claim 1, characterized in that: The telescopic pipe section (4) comprises an outer pipe section (401) and an inner pipe section (402); the outer pipe section (401) is fixed to the fixed block (6) as a whole, and the inner pipe section (402) is inserted into the outer pipe section (401) in an axially sliding manner; heat transfer oil is also provided between the inner pipe section (402) and the outer pipe section (401); the inner wall of the inner pipe section (402) is coaxially provided with a sealing ring (403) which is in compression contact with the outer wall of the outer pipe section (401); the surface annular array of the sliding matching pipe section of the inner pipe section (402) located on the outer pipe section (401) is provided with a plurality of heat transfer ribs (404), so that the sliding matching pipe section forms a spline structure, and vertically slides with a plurality of strip slideways having a spline groove structure in the annular array on the inner wall of the outer pipe section (401).

5. A double-lamp hair removal device according to claim 4, characterized in that: Heat transfer oil is coated between the inner pipe section (402) and the outer pipe section (401), a sealing ring (403) is installed on the pipe wall at the end of the inner pipe section (402), and the inner pipe section (402) passes through the sealing ring (403) in a squeezed contact manner.

6. A double-lamp hair removal device according to claim 1, characterized in that: One end of the annular airbag (8) is completely open, a rectangular heat-conducting ring (10) is fixed at the edge of the fixing block (6), the middle of the heat-conducting ring (10) has an annular protrusion (1001), the protrusion (1001) extends into the annular airbag (8), the wall end of the open end of the annular airbag (8) is sealed to the sink table surface on both sides of the heat-conducting ring (10), so that the protrusion (1001) is completely sealed in the annular airbag (8).

7. A double-lamp hair removal device according to claim 6, characterized in that: A plurality of annular heat dissipation frame sheets (11) are provided on a surface of the raised portion (1001) facing the inside of the annular airbag (8).

8. A double-lamp hair removal device according to claim 7, characterized in that: The side of the protrusion (1001) facing the inside of the annular airbag (8) is connected to the inner top wall of the annular airbag (8) through a return spring (12), and under normal conditions, due to the expansion effect of the annular airbag (8), the return spring (12) is always in a stretched state, and after the exhaust valve is opened, the return spring (12) quickly pulls the heat conductive ring (10) toward the annular mounting groove (101).

9. The double-lamp hair removal device according to claim 1, characterized in that: The exhaust valves are provided in a plurality and arranged in an annular array on the outside of the annular airbag (8), and the exhaust valves are communicated with the outside of the outer shell (1).

10. The double-lamp hair removal device according to claim 1, characterized in that: The valve core (13) of the exhaust valve comprises a first slider (1301) and a second slider (1303) connected together via a pressure-bearing spring (1302); the outer wall of the annular airbag (8) has a protruding air nozzle (801), the air nozzle (801) is located in a valve hole (902) opened on the shell wall of the outer shell (1), the valve core (13) is installed in the valve hole (902), and the initial position of the two sliders can close the inlet end of the exhaust flow channel (16) opened on the shell of the outer shell (1); A screw plug (14) is installed at the opening of the valve hole (902), and a magnet (15) is embedded in one end of the screw plug (14) located in the valve hole (902). When the annular air bag (8) is exhausted outward through the air nozzle (801), the valve core (13) is pushed to slide and expose the inlet end, and the valve core (13) is quickly attracted and fixed by the magnet (15) because it is further approached to the screw plug (14).

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