Double-end shaver

Abstract

The utility model discloses a double-head shaver, which comprises a shell, a driving device and a driving device, the shell comprises an outer shell and an inner shell, the side wall of the outer shell is provided with a pressing opening and an outer inserting opening in a penetrating manner, and the inner shell is provided with an inner inserting opening communicated with the outer inserting opening; the first tool bit and the second tool bit are detachably connected to the two ends of the inner shell respectively; the driving assembly is mounted in the inner shell; the number of the first sealing pieces is two, and the two first sealing pieces are arranged at the two ends of the inner shell in a sleeving mode correspondingly and abut against the inner side of the outer shell; one end of the multifunctional key is installed at the outer opening end of the pressing opening in a sliding mode, and the multifunctional key is connected to the driving assembly; the second sealing element is detachably connected with and blocks the inner opening end of the pressing opening and sleeves the other end of the multifunctional key; the charging port is mounted in the inner shell, and one end of the charging port is inserted into the inner socket; and the third sealing element is detachably connected to the inner shell and blocks a gap between the charging port and the inner socket. According to the double-head shaver, the waterproof effect can be improved.

Description

A double-headed shaver Technical Field

[0001] This utility model relates to the field of beauty equipment technology, specifically to a dual-headed shaver. Background Technology

[0002] Dual-head shavers have two blades to meet different shaving needs. Typically, the two blades are mounted at opposite ends of the housing, which houses the drive assembly that powers both blades. The housing also features a multi-function button and a charging port for communication with the drive assembly. However, during daily use and cleaning, water can seep into the housing, affecting the drive assembly and thus the shaver's performance. Summary of the Invention

[0003] The purpose of this invention is to provide a dual-head shaver to solve the aforementioned technical problems.

[0004] A dual-head shaver, comprising:

[0005] The housing includes an outer shell and an inner shell fitted inside the outer shell. The outer shell has a pressing port and an external insertion port through its side wall, and the inner shell has an internal insertion port that communicates with the external insertion port.

[0006] The first cutter head is detachably connected to one end of the inner shell;

[0007] The second cutter head is detachably connected to the other end of the inner shell;

[0008] The drive assembly is installed inside the inner housing, and its two output ends are respectively connected to the first cutter head and the second cutter head;

[0009] The first sealing element is provided in two parts, and the two first sealing elements are respectively sleeved on both ends of the inner shell and abut against the inner side of the outer shell;

[0010] The multi-function button has one end slidably mounted on the outer opening of the press port, and the multi-function button is connected to the drive assembly.

[0011] The second sealing element is detachably connected to and seals the inner opening of the press port, and is fitted onto the other end of the multi-function button;

[0012] The charging port is installed inside the inner shell, with one end inserted into the inner socket;

[0013] The third seal is detachably connected to the inner shell and simultaneously seals the gap between the charging port and the inner socket.

[0014] According to one embodiment of the present invention, the inner shell includes a main shell and a cover. The side wall of the main shell is provided with a disassembly port opposite to the pressing port. The cover is detachably connected to and sealed in the disassembly port. The drive assembly is installed inside the main shell. The first sealing element is sleeved on the main shell, and the cover is located between the two first sealing elements.

[0015] According to one embodiment of the present invention, the inner shell further includes two sealing ring platforms that are respectively fixedly connected to both ends of the main shell. The first cutting head and one of the corresponding first sealing elements are respectively located on both sides of one of the sealing ring platforms, and the second cutting head and the other corresponding first sealing element are respectively located on both sides of the other sealing ring platform. The inner side of the outer shell simultaneously abuts against the outer side of the two sealing ring platforms.

[0016] According to one embodiment of the present invention, the two opposite holes in the disassembly port are fixedly connected to a receiving platform, and the two receiving platforms are provided with end engaging grooves. The cover is fixedly connected to two overlapping platforms that overlap the two receiving platforms respectively, and the two overlapping platforms are fixedly connected to end fastening blocks. The two fastening blocks are respectively fastened to the two end engaging grooves.

[0017] According to one embodiment of the present invention, at least one of the receiving platforms is provided with a limiting groove, and the corresponding overlapping platform is fixedly connected with a limiting block adapted and inserted into the limiting groove.

[0018] According to one embodiment of the present invention, the two opposite holes of the disassembly port are fixedly connected with side fastening blocks, and the cover has multiple side fastening grooves, with each side fastening block fastening into the corresponding side fastening groove.

[0019] According to one embodiment of the present invention, a pressure groove is provided on the outer side of the outer shell, a pressure plate is adapted to and fixed in the pressure groove, a pressure hole is provided through the pressure plate, the pressure hole forms the outer opening end of the pressing port, an overlapping groove communicating with the pressing port is provided at the bottom of the pressure groove, an overlapping ring is fixed in the second sealing member overlapping the overlapping groove, and the pressure plate presses on the overlapping ring.

[0020] According to one embodiment of the present invention, the second sealing member has a waterproof groove facing the pressure hole opening, and the groove opening is connected to the overlapping ring.

[0021] According to one embodiment of the present invention, the third sealing member includes an inner sealing ring, which covers the charging port and has its two ends abutting against the inner side of the charging port and the inner shell, respectively.

[0022] According to one embodiment of the present invention, the third sealing element further includes an outer sealing ring, which is detachably connected to the outside of the inner shell and simultaneously abuts against the inside of the outer shell, with the inner insertion port located inside the outer sealing ring.

[0023] Compared with the prior art, the dual-head shaver of this utility model has the following advantages:

[0024] This utility model discloses a dual-head shaver that forms a double-layer waterproof structure for the drive assembly by setting up an outer shell and an inner shell. A first sealing element is set to form a waterproof effect between the outer shell and the inner shell, which can prevent water from seeping in through the gap between the outer shell and the inner shell. At the same time, a second sealing element forms a waterproof structure for the multi-function button, and a third sealing element forms a waterproof structure for the charging port. This improves the problem of existing shavers where external water enters during cleaning and damages the internal drive assembly components, resulting in poor market competitiveness. Attached Figure Description

[0025] Figure 1 is a schematic diagram of the structure of the dual-head shaver of this utility model;

[0026] Figure 2 is a structural diagram of the outer shell of the double-headed shaver of this utility model;

[0027] Figure 3 is a partial cross-sectional view of the first structure of the dual-head shaver of this utility model;

[0028] Figure 4 is an enlarged view of part A in Figure 3;

[0029] Figure 5 is a second partial structural cross-sectional view of the dual-head shaver of this utility model;

[0030] Figure 6 is an enlarged view of part B in Figure 5;

[0031] Figure 7 is an enlarged view of part C in Figure 5;

[0032] Figure 8 is a third partial structural cross-sectional view of the dual-head shaver of this utility model;

[0033] Figure 9 is an enlarged view of part D in Figure 8;

[0034] Figure 10 is a partial exploded view of the dual-head shaver of this utility model;

[0035] Figure 11 is an enlarged view of part E in Figure 10;

[0036] Figure 12 is an enlarged view of part F in Figure 10.

[0037] In the diagram: 1. Shell; 11. Outer shell; 111. Pressing port; 112. Pressing groove; 113. Pressing plate; 114. Pressing hole; 115. Overlap groove; 116. External insertion port; 12. Inner shell; 121. Main shell; 1211. Mounting port; 1212. Disassembly port; 1213. Receiving platform; 1214. End locking groove; 1215. Limiting groove; 1216. Side fastening block; 1217. Tightening groove; 1218. Locking groove; 1219. Internal insertion port; 122. Shell cover; 1221. Overlap platform; 1222. Fastening block; 1223. 1. Limiting block; 1224. Side fastening groove; 123. Sealing ring platform; 2. First cutter head; 21. Twisting block; 22. First cover; 3. Second cutter head; 31. Locking block; 32. Second cover; 4. Drive assembly; 41. First drive motor; 42. Second drive motor; 43. Power supply; 44. Control circuit board; 5. First seal; 6. Multi-function button; 7. Second seal; 71. Overlapping ring; 72. Waterproof groove; 8. Charging port; 81. Fixing platform; 9. Third seal; 91. Inner sealing ring; 92. Outer sealing ring.

[0038] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0041] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0042] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0043] This utility model discloses a dual-head shaver, as shown in Figures 1 to 12, comprising:

[0044] The housing 1 includes an outer shell 11 and an inner shell 12 fitted inside the outer shell 11. The outer shell 11 has a pressing port 111 and an external insertion port 116 through the side wall. The inner shell 12 has an internal insertion port 1219 that communicates with the external insertion port 116.

[0045] The first cutter head 2 is detachably connected to one end of the inner shell 12;

[0046] The second cutter head 3 is detachably connected to the other end of the inner shell 12;

[0047] The drive assembly 4 is installed inside the inner housing 12, and its two output ends are respectively connected to the first cutter head 2 and the second cutter head 3.

[0048] There are two first sealing elements 5. The two first sealing elements 5 are respectively sleeved on both ends of the inner shell 12 and abut against the inner side of the outer shell 11.

[0049] The multi-function button 6 has one end slidably mounted on the outer opening of the press port 111, and the multi-function button 6 is communicatively connected to the drive assembly 4.

[0050] The second sealing element 7 is detachably connected to and seals the inner opening end of the press port 111, and is sleeved on the other end of the multi-function button 6;

[0051] The charging port 8 is installed inside the inner shell 12, and one end is inserted into the inner socket 1219;

[0052] The third seal 9 is detachably connected to the inner shell 12 and simultaneously seals the gap between the charging port 8 and the inner socket 1219.

[0053] The drive assembly 4 is installed inside the inner shell 12. The outer shell 11 and the inner shell 12 form a double-layer waterproof structure for the drive assembly 4, improving the waterproof effect. At the same time, two first seals 5 form a first waterproof structure from both ends of the inner shell 12. This first waterproof structure creates a waterproof effect between the outer shell 11 and the inner shell 12, preventing water from seeping into the gap between the outer shell 11 and the inner shell 12 when rinsing the first blade head 2 and the second blade head 3. Meanwhile, the second seal 7 forms a waterproof structure at the multi-function button 6, and the third seal 9 forms a waterproof structure at the charging port 8. This improves the problem of external water entering the existing shaver during cleaning, which damages the internal drive assembly 4 components and leads to poor market competitiveness.

[0054] In this embodiment, the inner shell 12 forms a receiving cavity, and both ends of it are through opening structures to form an opening that connects to the receiving cavity; and the inner shell 12 has an installation port 1211 that connects to the pressing port 111.

[0055] The drive assembly 4 includes a first drive motor 41, a second drive motor 42, a power supply 43, and a control circuit board 44, all installed within the receiving cavity. The drive end of the first drive motor 41 is connected to the first cutter head 2 through one of its openings, and the drive end of the second drive motor 42 is connected to the second cutter head 3 through the other opening. The power supply 43 provides power to the first drive motor 41, the second drive motor 42, and the control circuit board 44. The charging port 8 is electrically connected to the control circuit board 44. When the charging port 8 is powered on, the power supply 43 charges through the charging port 8. When the charging port 8 is de-energized, the control circuit board 44 is powered by the power supply 43. The control circuit board 44 is located at the mounting port 1211 for connection with the multi-function button 6.

[0056] The multi-function button 6 is electrically connected to the control circuit board 44 of the drive assembly 4. A function switching control module is also fixedly installed on the control circuit board 44, and is electrically connected to the control circuit board 44. Through the settings of the function switching control module, pressing and holding the multi-function button 6 turns on the dual-head shaver. The first drive motor 41 drives the first blade 2 to open, or the second drive motor 42 drives the second blade 3 to open. Either the first blade 2 or the second blade 3 is open. Pressing the multi-function button 6 once turns off either the first blade 2 or the second blade 3, and turns on the other. The first blade 2 and the second blade 3 can be repeatedly switched on and off. Finally, pressing and holding the multi-function button 6 turns off the dual-head shaver.

[0057] Charging port 8 is located at inner socket 1219 for charging, and inner socket 1219 is relatively sealed off through charging port 8. Simultaneously, multi-function button 6 is located at pressing port 111 to control the start and stop of the entire shaver, and pressing port 111 is relatively sealed off through multi-function button 6. This mitigates the risk of water leakage in a tiered manner. Even if leakage occurs, it will only affect charging port 8 at inner socket 1219 and multi-function button 6 at pressing port 111, without affecting the drive assembly 4 inside the housing cavity. Short circuits and poor contact are avoided. In such cases, only charging port 8 and multi-function button 6 need to be replaced, saving on repair costs. Furthermore, regarding inner socket 1219... The charging port 8 is specially equipped with a third sealing element 9 for sealing, which further reduces the risk of water leakage from the inner socket 1219. A second sealing element 7 is specially equipped for sealing the multi-function button 6 at the press port 111, which further reduces the risk of water leakage from the press port 111, forming a seal. At the same time, the first sealing element 5 forms a seal between the inner shell 12 and the outer shell 11, which improves the problem of external water entering the existing dual-head shaver during cleaning and causing damage to the internal drive assembly 4, resulting in poor market competitiveness. Moreover, the above-mentioned charging waterproof structure is simple and easy to assemble. When applied to dual-head shavers or other personal care products, it improves the waterproof rating of the entire product, reduces maintenance costs, increases cost-effectiveness, and enhances the product's market competitiveness.

[0058] The charging port 8 can be fixed to the inner wall of the inner socket 1219 by adhesive. Meanwhile, the first sealing element 5, the second sealing element 7 and the third sealing element 9 can all be made of TPE / TPU / rubber, etc.

[0059] Charging port 8 is preferably a Type-C interface. The Type-C interface is a symmetrical interface, eliminating the need to consider alignment during insertion and solving the problem of inaccurate USB insertion. It allows for blind insertion, which is especially convenient for use at night or in low-light environments. Of course, depending on cost or the needs of specific application groups, charging port 8 can also be a standard USB interface.

[0060] The first cutting head 2 and the second cutting head 3 are conventional technical means in this field and are not the inventive point of this utility model. Therefore, their specific structures will not be described in detail here.

[0061] Based on the above embodiments, please refer to Figures 10-12. In this dual-head shaver, a twisting groove 1217 is provided on the outer periphery of one end of the inner shell 12. A first blade 2 is fixedly connected to a twisting block 21, which is movably engaged in the twisting groove 1217. A plurality of slots 1218 are provided on the other end of the inner shell 12. A plurality of locking blocks 31 are fixedly connected to the second blade 3, and each locking block 31 is engaged in a corresponding slot 1218.

[0062] By setting the screwing block 21 to be movably engaged with the screwing groove 1217, the first cutter head 2 can be detachably installed at one end of the inner shell 12 by screwing; by setting the locking block 31 to be movably engaged with the locking groove 1218, the second cutter head 3 can be detachably installed at the other end of the inner shell 12 by plugging.

[0063] Each card block 31 is provided with a first guide surface to guide the card block 31 to engage with the corresponding card slot 1218.

[0064] Based on the above embodiment, the first cutter head 2 is movably covered by the first cover 22, and the second cutter head 3 is movably covered by the second cover 32, so as to protect the first cutter head 2 and the second cutter head 3 respectively through the first cover 22 and the second cover 32, thereby achieving the effect of dust prevention and hygiene.

[0065] Please refer to Figures 5 to 12. The dual-head shaver of this utility model includes a main shell 121 and a cover 122 in the inner shell 12. The side wall of the main shell 121 has a disassembly port 1212 that is opposite to the pressing port 111. The cover 122 is detachably connected to and sealed in the disassembly port 1212. The drive assembly 4 is installed inside the main shell 121. The first sealing member 5 is sleeved on the main shell 121, and the cover 122 is located between the two first sealing members 5.

[0066] During installation, the drive assembly 4 is installed inside the main housing 121, and then the cover 122 is installed on the main housing 121 to seal the disassembly port 1212 of the main housing 121, forming a relatively sealed installation of the drive assembly 4 and improving waterproofing.

[0067] Please refer to Figures 3 and 4. The dual-head shaver of this utility model includes two sealing ring platforms 123 that are fixedly connected to both ends of the main shell 121 in the inner shell 12. The first blade 2 and one of the corresponding first seals 5 are located on both sides of one of the sealing ring platforms 123, and the second blade 3 and the other corresponding first seal 5 are located on both sides of the other sealing ring platform 123. The inner side of the outer shell 11 abuts against the outer side of the two sealing ring platforms 123.

[0068] After the cover 122 is installed on the main shell 121, the outer shell 11 is fitted onto the outside of the inner shell 12. At this time, the inner side of the outer shell 11 simultaneously abuts against the outer side of the two sealing ring platforms 123, so that the outer shell 11 and the two sealing ring platforms 123 together form a sealed cavity. The disassembly port 1212 of the main shell 121 is located in the sealed cavity, so as to utilize the two sealing ring platforms 123 to form a waterproof function.

[0069] Please refer to Figures 8-12. In the dual-head shaver of this utility model, the two opposite holes of the disassembly port 1212 are fixedly connected to the receiving platform 1213. Both receiving platforms 1213 are provided with end engaging grooves 1214. The cover 122 is fixedly connected to two overlapping platforms 1221 that overlap the two receiving platforms 1213 respectively. Both overlapping platforms 1221 are fixedly connected to end fastening blocks 1222. The two fastening blocks 1222 are respectively fastened to the two end engaging grooves 1214.

[0070] Specifically, the two receiving platforms 1213 are distributed along the length of the dual-head shaver. When the cover 122 is installed on the main housing 121 to block the disassembly port 1212 of the main housing 121, the two overlapping platforms 1221 overlap with the two receiving platforms 1213 respectively to form a seal. At the same time, the two end fastening blocks 1222 respectively fasten into the two end locking grooves 1214 to prevent the cover 122 from detaching from the main housing 121.

[0071] Both end fastening blocks 1222 are provided with a first inclined surface to guide the end fastening blocks 1222 into the corresponding end fastening grooves 1214.

[0072] The dual-head shaver of this utility model has at least one receiving platform 1213 with a limiting groove 1215, and a corresponding overlapping platform 1221 is fixedly connected with a limiting block 1223 that is adapted and inserted into the limiting groove 1215. When the cover 122 is installed on the main shell 121 to block the disassembly port 1212 of the main shell 121, the limiting block 1223 is simultaneously inserted into the limiting groove 1215 to form a limiting effect and prevent the cover 122 from moving relative to the main shell 121.

[0073] Specifically, limit grooves 1215 can be provided on one or both receiving platforms 1213.

[0074] In this invention, a dual-head shaver has two opposite holes on the mounting / dismounting port 1212, each with a side fastening block 1216 fixedly connected to it. The cover 122 has multiple side fastening grooves 1224, with each side fastening block 1216 engaging with its corresponding side fastening groove 1224. When the cover 122 is installed on the main shell 121 to block the mounting / dismounting port 1212, each side fastening block 1216 simultaneously engages with its corresponding side fastening groove 1224, forming a connection structure between the main shell 121 and the cover 122 from the side, thus improving the strength of the connection. The side fastening blocks 1216 and the end fastening blocks 1222 form a circumferentially distributed connection structure.

[0075] Each side fastening block 1216 is provided with a second inclined surface to guide the side fastening block 1216 into the corresponding side fastening groove 1224.

[0076] Please refer to Figures 1-9. In this utility model, the double-headed shaver has a pressure groove 112 on the outer side of the outer shell 11. The pressure groove 112 is adapted to and fixed with a pressure plate 113. The pressure plate 113 has a pressure hole 114 through it, which forms the outer opening end of the pressing port 111. The bottom of the pressure groove 112 has an overlapping groove 115 that connects to the pressing port 111. The second sealing member 7 is fixed with an overlapping ring 71 that overlaps with the overlapping groove 115. The pressure plate 113 presses against the overlapping ring 71.

[0077] The second seal 7 has a second guide surface inclined towards the inner shell 12 on its outer side. During installation, force is applied to the second seal 7 to press it into the inner opening of the pressing port 111. Upon pressing, the second guide surface abuts against the inner wall of the pressing port 111, providing a guiding effect. This causes the second seal 7 to deform under the reaction force until it is engaged within the pressing port 111. Then, the multi-function button 6 is installed on the second seal 7. Finally, the pressure plate 113 is fixedly installed in the pressure groove 112. During disassembly, force is applied to the pressure plate 113 to remove it, and then force is applied to the second seal 7 to deform it and remove it.

[0078] The pressure plate 113 can be fixedly installed in the pressure groove 112 with sealant to form a waterproof seal. One end of the multi-function button 6 is slidably connected to the inner wall of the pressure hole 114 so that when the multi-function button 6 is pressed, the force is transmitted to the second seal 7 through the multi-function button 6, and then to the control circuit board 44 to realize the transmission of control signals.

[0079] The double-headed shaver of this utility model has a second sealing member 7 with a waterproof groove 72 that opens toward the pressure hole 114, and the groove opening of the waterproof groove 72 is connected to the overlapping ring 71.

[0080] The pressure plate 113 presses against the overlapping ring 71. When water seeps into the gap between the second seal 7 and the inner wall of the pressure hole 114, it can flow into the waterproof groove 72 under the blocking and guiding effect of the overlapping ring 71, thereby preventing further water seepage and improving the waterproof effect.

[0081] Please refer to Figures 8 and 9. In the dual-head shaver of this utility model, the third sealing element 9 includes an inner sealing ring 91, which covers the charging port 8 and has its two ends abutting against the inner side of the charging port 8 and the inner shell 12, respectively.

[0082] During use, the inner sealing ring 91 covers the charging port 8 to prevent water from seeping into the gap between the charging port 8 and the inner shell 12.

[0083] A fixing platform 81 is fixedly connected to the outer circumferential side of the charging port 8, and the side of the inner sealing ring 91 abuts against the fixing platform 81 to form support for the inner sealing ring 91 through the fixing platform 81.

[0084] A limiting ring is fixedly connected to the inner side of the main shell 121 of the inner shell 12, and the limiting ring covers the inner sealing ring 91. The limiting ring is integrally formed with the main shell 121, and its inner side abuts against the outer side of the inner sealing ring 91 in a circumferential manner, forming a limiting installation function for the inner sealing ring 91 and maintaining the stable sealing function of the inner sealing ring 91 on the charging port 8.

[0085] The dual-head shaver of this utility model further includes an outer sealing ring 92 as the third sealing element 9. The outer sealing ring 92 is detachably connected to the outside of the inner shell 12 and simultaneously abuts against the inside of the outer shell 11. The inner insertion port 1219 is located inside the outer sealing ring 92.

[0086] Specifically, an annular groove is formed on the outer side of the main shell 121 of the inner shell 12, surrounding the inner insertion port 1219, and the outer sealing ring 92 is installed in the annular groove. When the outer shell 11 is fitted onto the inner shell 12, the inner side of the outer shell 11 abuts against the outer sealing ring 92, so that the outer sealing ring 92 forms a seal between the outer shell 11 and the inner shell 12, preventing water from entering the inner insertion port 1219 from the outer insertion port 116 and then seeping out from the gap between the outer shell 11 and the inner shell 12.

[0087] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-head shaver, characterized in that, include: A housing (1) includes an outer shell (11) and an inner shell (12) fitted inside the outer shell (11). The outer shell (11) has a pressing port (111) and an external insertion port (116) through its side wall. The inner shell (12) has an internal insertion port (1219) communicating with the external insertion port (116). A first cutting head (2) is detachably connected to one end of the inner shell (12). A second cutting head (3) is detachably connected to the other end of the inner shell (12). A drive assembly (4) is installed inside the inner shell (12), and its two output ends are respectively driven to the first cutting head (2) and the second cutting head (3). Two first sealing elements (5) are provided, and the two first sealing elements (5) are respectively fitted inside the inner shell (12). Located at both ends of the inner shell (12), and both abutting against the inner side of the outer shell (11); a multi-function button (6), one end of which is slidably installed on the outer opening end of the press port (111), and the multi-function button (6) is connected to the drive assembly (4); a second sealing member (7), which is detachably connected to and seals the inner opening end of the press port (111), and is sleeved on the other end of the multi-function button (6); a charging port (8), which is installed inside the inner shell (12), and one end is inserted into the inner socket (1219); a third sealing member (9), which is detachably connected to the inner shell (12), and simultaneously seals the gap between the charging port (8) and the inner socket (1219).

2. The dual-head shaver according to claim 1, characterized in that, The inner shell (12) includes a main shell (121) and a cover (122). The side wall of the main shell (121) is provided with a disassembly port (1212) that is opposite to the pressing port (111). The cover (122) is detachably connected to and sealed in the disassembly port (1212). The drive assembly (4) is installed inside the main shell (121). The first sealing element (5) is sleeved on the main shell (121), and the cover (122) is located between the two first sealing elements (5).

3. The dual-headed shaver according to claim 2, characterized in that, The inner shell (12) also includes two sealing ring platforms (123) that are fixedly connected to both ends of the main shell (121). The first cutter head (2) and one of the corresponding first seals (5) are located on both sides of one of the sealing ring platforms (123), and the second cutter head (3) and the other corresponding first seal (5) are located on both sides of the other sealing ring platform (123). The inner side of the outer shell (11) simultaneously abuts against the outer sides of the two sealing ring platforms (123).

4. The dual-headed shaver according to claim 2, characterized in that, The disassembly port (1212) has two opposite holes with fixedly connected receiving platforms (1213), and each of the two receiving platforms (1213) has an end engaging groove (1214). The cover (122) is fixedly connected with two overlapping platforms (1221) that overlap the two receiving platforms (1213), and each of the two overlapping platforms (1221) is fixedly connected with an end fastening block (1222). The two fastening blocks (1222) are respectively fastened to the two end engaging grooves (1214).

5. The dual-head shaver according to claim 4, characterized in that, At least one of the receiving platforms (1213) has a limiting groove (1215), and the corresponding overlapping platform (1221) is fixedly connected with a limiting block (1223) that is adapted to and inserted into the limiting groove (1215).

6. The dual-headed shaver according to claim 2, characterized in that, The two opposite holes of the disassembly port (1212) are fixedly connected with side fastening blocks (1216), and the cover (122) has multiple side fastening grooves (1224), and each side fastening block (1216) is fastened to the corresponding side fastening groove (1224).

7. The dual-headed shaver according to claim 1, characterized in that, The outer side of the outer shell (11) is provided with a pressure groove (112), the pressure groove (112) is adapted to and fixed with a pressure plate (113), the pressure plate (113) is provided with a pressure hole (114), the pressure hole (114) forms the outer opening end of the pressing port (111), the bottom of the pressure groove (112) is provided with an overlapping groove (115) that communicates with the pressing port (111), the second sealing member (7) is fixed with an overlapping ring (71) that overlaps the overlapping groove (115), and the pressure plate (113) presses on the overlapping ring (71).

8. The dual-head shaver according to claim 7, characterized in that, The second seal (7) has a waterproof groove (72) that opens toward the pressure hole (114), and the groove of the waterproof groove (72) is connected to the overlapping ring (71).

9. The dual-head shaver according to any one of claims 1-8, characterized in that, The third sealing element (9) includes an inner sealing ring (91), which covers the charging port (8) and has its two ends abutting against the inner side of the charging port (8) and the inner shell (12), respectively.

10. The dual-head shaver according to claim 9, characterized in that, The third sealing element (9) further includes an outer sealing ring (92), which is detachably connected to the outside of the inner shell (12) and simultaneously abuts against the inside of the outer shell (11). The inner insertion port (1219) is located inside the outer sealing ring (92).

Images