Electronic cigarette

Abstract

The utility model discloses an electronic cigarette. The electronic cigarette comprises a shell, a working cartridge, two connecting pieces and a standby cartridge. A working mounting position and a bullet storage mounting position which are respectively provided with a first mounting opening and a second mounting opening are formed in the shell; the working smoke cartridge can be detachably mounted at the working mounting position; a connecting sub-part of the connecting piece is connected with the bullet storage mounting position, a clamping sub-part of the connecting piece is located in the bullet storage mounting position and provided with an opening facing the second mounting opening, the clamping sub-part can deform, and the opening can be enlarged under the action of external force and can recover after the external force disappears; the standby smoke cartridge can be detachably mounted at the cartridge storage mounting position; when the standby smoke cartridge is mounted at the cartridge storage mounting position, the two ends of the standby smoke cartridge are sleeved with the two clamping sub-pieces respectively; the standby smoke cartridge can replace the working smoke cartridge to be installed on the working installation position. The standby cigarette cartridge in the electronic cigarette is good in installation effect and convenient to take.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of atomization technology, in particular to an electronic cigarette. BACKGROUND

[0002] An electronic cigarette can atomize tobacco tar into aerosol for a user to smoke. Some electronic cigarettes are equipped with spare cartridges, which can be replaced at any time when the tobacco tar in the cartridge is exhausted or the user wants to switch the taste of the tobacco tar. However, the design of the existing electronic cigarettes is not reasonable. In some electronic cigarettes, the spare cartridges are convenient to take but not good to install and are easy to fall off. In some other electronic cigarettes, the spare cartridges are firm to install but inconvenient to take. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the present application is to provide an electronic cigarette with spare cartridges which are good to install and convenient to take.

[0004] To achieve the above purpose, the electronic cigarette provided by the present application comprises:

[0005] a housing formed with a working installation position and a cartridge storage installation position, the working installation position and the cartridge storage installation position respectively having a first installation opening and a second installation opening;

[0006] a working cartridge capable of being detachably installed in the working installation position via the first installation opening;

[0007] two connecting members arranged on opposite sides of the cartridge storage installation position, the connecting members comprising connecting sub-members and clamping sub-members connected to each other, the connecting sub-members being connected to the cartridge storage installation position, the clamping sub-members being located in the cartridge storage installation position, the clamping sub-members having openings facing the second installation opening, the clamping sub-members being capable of deforming, the openings being capable of being enlarged under the action of an external force and being capable of recovering after the disappearance of the external force; and

[0008] a spare cartridge capable of being detachably installed in the cartridge storage installation position via the second installation opening and the openings, when the spare cartridge is installed in the cartridge storage installation position, two ends of the spare cartridge being respectively sleeved in the two clamping sub-members;

[0009] The spare cartridge can replace the working cartridge to be installed in the working installation position.

[0010] Optionally, the clamping sub-members comprise clamping ring portions and two clamping protrusions, the openings being formed in the clamping ring portions, the clamping ring portions being capable of being opened under the action of the external force and being capable of resetting after the disappearance of the external force, the two clamping protrusions being arranged on the inner ring wall of the clamping ring portions, the two clamping protrusions being arranged close to the openings and located on both sides of the openings, the distance between the two clamping protrusions being smaller than the diameter of the spare cartridge.

[0011] Optionally, the clamping protrusion is formed by the inner ring wall of the clamping ring part protruding towards the inside of the clamping ring part.

[0012] Optionally, the clamping protrusion is curved, and the shape of the part of the clamping protrusion facing away from the opening is adapted to the shape of the spare cartridge.

[0013] Optionally, two connecting grooves are formed at the two ends of the spare cartridge corresponding to the spare cartridge, the connecting grooves are recessed in a direction away from the spare cartridge from the side of the cartridge mounting position facing the end surface of the spare cartridge, one side of the connecting groove extends to the second mounting opening and communicates with the second mounting opening; the connecting member penetrates and connects the connecting grooves, and the clamping sub-member is located in the connecting grooves; when the spare cartridge is mounted on the cartridge mounting position, the two ends of the spare cartridge are respectively sleeved in the two connecting grooves, and the end surfaces abut against the two connecting grooves.

[0014] Optionally, the two ends of the clamping sub-member are recessed in a direction away from the second mounting opening to form insertion grooves, the insertion grooves penetrate in the deformation direction of the clamping sub-member, and the walls of the connecting grooves protrude to form insertion blocks corresponding to the insertion grooves, the insertion blocks and the insertion grooves slide relative to each other when the clamping sub-member deforms.

[0015] Optionally, one side of the insertion groove extends and penetrates the clamping sub-member close to the side of the spare cartridge.

[0016] Optionally, the shape of the connecting groove is adapted to the shape of the clamping sub-member, and the two ends of the connecting groove and the clamping sub-member are spaced apart in the deformation direction of the clamping sub-member.

[0017] Optionally, the electrical connection end of the spare cartridge is provided with a closure piece for sealing the air inlet hole of the spare cartridge; and a sealing plug is arranged in the smoke outlet end of the spare cartridge for sealing the smoke outlet end of the spare cartridge.

[0018] Optionally, the number of the spare cartridges is at least two, the at least two spare cartridges are arranged in the length direction of the shell, the connecting sub-member extends in the length direction of the shell, the number of the clamping sub-members is twice the number of the spare cartridges, and the at least four clamping sub-members are arranged one by one corresponding to the two ends of the at least two spare cartridges.

[0019] Optionally, the shape of the working mounting position is adapted to the shape of the working cartridge, the shape of the cartridge mounting position is adapted to the shape of the spare cartridge, and the working mounting position and the cartridge mounting position penetrate the shell in the thickness direction of the shell.

[0020] In the electronic cigarette of the application, the working installation position and the storage installation position are respectively provided with a first installation opening and a second installation opening, and a user can directly contact the cartridge to remove or install the cartridge from the working installation position or the storage installation position. The spare cartridge is connected to the storage installation position through a clamping sub-component, and the opening of the clamping sub-component can be enlarged under the action of an external force and can be restored after the external force disappears. When the spare cartridge is installed in the clamping sub-component, the clamping sub-component is in an expanded state so as to clamp the spare cartridge, and thus the installation of the spare cartridge on the storage installation position is firm and not easy to fall off. When the user removes or installs the spare cartridge, the clamping sub-component can be deformed, and the resistance to the movement of the spare cartridge is small, so that the removal and installation of the spare cartridge is convenient. Thus, the installation effect of the spare cartridge in the electronic cigarette of the application is good and the removal and installation are convenient. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only only some embodiments of the application, and for those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor.

[0022] Figure 1 Explosion of an embodiment of the electronic cigarette of the application Figure 1 ;

[0023] Figure 2 Explosion of the embodiment shown in Figure 1 . Figure 2 .

[0024] Explanation of reference signs:

[0025]

[0026]

[0027] The implementation of the purpose of the application, functional characteristics and advantages will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the application.

[0029] It should be noted that all directional indications, such as upper, lower, left, right, front, back, and the like, are merely used for convenience of description and are not intended to limit the application to a particular orientation.

[0030] In addition, the description in the present application involving "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated, or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" throughout the text includes three solutions, for example, A and / or B, including A technical solution, B technical solution, and A and B simultaneously meet the technical solution; in addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed in the present application.

[0031] The present application provides an electronic cigarette, which comprises a shell, a working cartridge, two connecting members and a spare cartridge. The shell is formed with a working mounting position and a spare cartridge mounting position, and the working mounting position and the spare cartridge mounting position are respectively provided with a first mounting opening and a second mounting opening. The working cartridge can be detachably mounted in the working mounting position through the first mounting opening. The two connecting members are arranged on opposite sides of the spare cartridge mounting position, and each connecting member comprises a connecting sub-member and a clamping sub-member connected to each other. The connecting sub-member is connected to the spare cartridge mounting position, and the clamping sub-member is located in the spare cartridge mounting position. The clamping sub-member has an opening facing the second mounting opening, and the clamping sub-member can be deformed. The opening can be enlarged under the action of an external force and can be restored after the external force disappears. The spare cartridge can be detachably mounted in the spare cartridge mounting position through the second mounting opening and the opening. When the spare cartridge is mounted in the spare cartridge mounting position, the two ends of the spare cartridge are respectively sleeved in the two clamping sub-members. The spare cartridge can replace the working cartridge and be mounted in the working mounting position.

[0032] In the electronic cigarette of the present application, the working installation position and the spare installation position are respectively provided with a first installation opening and a second installation opening, and the user can directly contact the cartridge to remove or install the cartridge from the working installation position or the spare installation position. The spare cartridge is connected to the spare installation position by a clamping sub-component, and the opening of the clamping sub-component can be enlarged under the action of external force and can be restored after the external force disappears. When the spare cartridge is installed in the clamping sub-component, the clamping sub-component is in an open state so as to clamp the spare cartridge, and thus the installation of the spare cartridge on the spare installation position is firm and not easy to fall off. When the user removes or installs the spare cartridge, the clamping sub-component can be deformed, and the resistance to the movement of the spare cartridge is small, so that the removal and installation of the spare cartridge is convenient. Thus, the installation effect of the spare cartridge in the electronic cigarette of the present application is good and the removal and installation are convenient.

[0033] Hereinafter, the specific structure of the electronic cigarette will be mainly described.

[0034] Please refer to Figure 1 and Figure 2 The electronic cigarette 100 of the present application comprises a housing 110. The housing 110 is formed with a working installation position 120. The electronic cigarette 100 of the present application comprises a working cartridge 140, which is detachably installed in the working installation position 120. The working cartridge 140 and the working installation position 120 can be connected by clamping, bonding and / or magnetic attraction.

[0035] When the working cartridge 140 is installed in the working installation position 120, the working cartridge 140 can atomize the tobacco tar. The electronic cigarette 100 of the present application comprises a suction passage (not shown) and an electric control device (not shown). The suction passage can guide and limit the flow of air. The suction passage is formed in the housing 110 and comprises an air inlet section and an air outlet section, which are sequentially communicated. The electric control device can control the cartridge to atomize the tobacco tar. The electric control device is arranged in the housing 110 and is exposed to the working installation position 120. The axial direction of the working cartridge 140 is perpendicular to the thickness direction of the housing 110, and when the working cartridge 140 is installed in the working installation position 120, the electric connection end of the working cartridge 140 is connected to the electric control device and the air inlet section, and the tobacco tar outlet end of the working cartridge 140 is connected to the air outlet section. When the working cartridge 140 works, the working cartridge 140 is electrically connected to the electric control device, and the working cartridge 140 is communicated with the air inlet section and the air outlet section.

[0036] In an embodiment, the side of the working installation position 120 opposite to the first installation opening 121 can be closed, and thus the connection of the working cartridge 140 in the working installation position 120 is firm. The size of the working installation position 120 can be larger than the size of the working cartridge 140, the user's fingers can be inserted into the working installation position 120, the working cartridge 140 can be taken out of the working installation position 120 through the first installation opening 121, and the user can also push the working cartridge 140 into the working installation position 120 through the first installation opening 121.

[0037] Referring to Figure 1 and Figure 2 , the working installation position 120 is formed in the thickness direction of the housing 110, and the working installation position 120 has a first installation opening 121 and a first pushing opening 122 opposite to each other. The user can push the working cartridge 140 out of the first installation opening 121 via the first pushing opening 122, and can also install the working cartridge 140 into the working installation position 120 via the first installation opening 121, and the working cartridge 140 is more convenient to disassemble.

[0038] Referring to Figure 1 and Figure 2 , the housing 110 is formed with a storage installation position 130. The electronic cigarette 100 of the present application includes a standby cartridge 150, which is detachably installed in the storage installation position 130.

[0039] In an embodiment, the side of the storage installation position 130 opposite to the second installation opening 131 can be closed, so that the connection of the standby cartridge 150 in the storage installation position 130 is more firm. The size of the storage installation position 130 can be larger than the size of the standby cartridge 150, and the user's fingers can be inserted into the storage installation position 130 to take out the standby cartridge 150 from the storage installation position 130 via the second installation opening 131.

[0040] Referring to Figure 1 and Figure 2 , the storage installation position 130 is formed in the thickness direction of the housing 110, and the storage installation position 130 has a second installation opening 131 and a second pushing opening 132 opposite to each other. The disassembly and assembly process of the standby cartridge 150 in the storage installation position 130 is the same as that of the working cartridge 140 in the working installation position 120, and will not be described again.

[0041] The standby cartridge 150 can replace the working cartridge 140 to be installed in the working installation position 120. Referring to Figure 1 and Figure 2 , the first installation opening 121 and the first installation opening 121 are located on the same side of the housing 110. Thus, the installation and disassembly directions of the working cartridge 140 and the standby cartridge 150 are the same, and the exchange of the working cartridge 140 and the standby cartridge 150 is more convenient.

[0042] Referring to Figure 1 and Figure 2The electronic cigarette 100 of the present application comprises two connecting pieces 160, which are arranged on opposite sides of the cartridge mounting position 130. The connecting piece 160 comprises a connecting sub-piece 161 and a clamping sub-piece 162, which are connected to each other. The connecting sub-piece 161 is connected to the cartridge mounting position 130, and the clamping sub-piece 162 is located in the cartridge mounting position 130. The clamping sub-piece 162 has an opening 163 facing the second mounting opening. The clamping sub-piece 162 can be deformed, and the opening 163 can be enlarged under the action of an external force and can recover after the external force disappears. When the spare cartridge 150 is mounted in the cartridge mounting position 130, the two ends of the spare cartridge 150 are respectively sleeved in the two clamping sub-pieces 162, and the clamping sub-pieces 162 are in a state of being stretched apart so as to clamp the spare cartridge 150. Thus, the mounting of the spare cartridge 150 on the cartridge mounting position 130 is firm, and the spare cartridge 150 is not easy to fall off. When the user installs or removes the spare cartridge 150, the clamping sub-piece 162 can be deformed, and the resistance to the movement of the spare cartridge 150 is small, so that the installation and removal of the spare cartridge 150 are convenient. Thus, the installation effect of the spare cartridge 150 in the electronic cigarette 100 of the present application is good, and the installation and removal are convenient.

[0043] Please refer to Figure 1 and Figure 2 , the connecting sub-piece 161 and the clamping sub-piece 162 are integrally formed. Thus, the connection between the connecting sub-piece 161 and the clamping sub-piece 162 is tight, and the installation effect of the spare cartridge 150 on the cartridge mounting position 130 is better.

[0044] Please refer to Figure 1 and Figure 2 , the clamping sub-piece 162 comprises a clamping ring portion 164 and two clamping protruding portions 165. The opening 163 is formed in the clamping ring portion 164, and the two clamping protruding portions 165 are arranged on the inner ring wall of the clamping ring portion 164. The clamping ring portion 164 can be opened under the action of an external force and can be reset after the external force disappears. The two clamping protruding portions 165 are arranged close to the opening 163 and on both sides of the opening 163, and the distance between the two clamping protruding portions 165 is smaller than the diameter of the spare cartridge 150. When the spare cartridge 150 is mounted in the cartridge mounting position 130, the clamping ring portion 164 sleeves the spare cartridge 150, and the two clamping protruding portions 165 clamp the spare cartridge 150.

[0045] Please refer to Figure 1 and Figure 2 , the clamping protruding portion 165 is formed by the inner ring wall of the clamping ring portion 164 rising towards the inside of the clamping ring portion 164. Thus, the connection between the clamping ring portion 164 and the two clamping protruding portions 165 is tight, and the clamping effect of the clamping sub-piece 162 on the spare cartridge 150 is good.

[0046] Please refer to Figure 1 and Figure 2The clamping protrusions 165 are curved. Thus, the surfaces of the two clamping protrusions 165 transition gently, and the movement of the spare cartridge 150 is less hindered, facilitating the installation and removal of the spare cartridge 150. The shape of the portion of the clamping protrusions 165 away from the opening 163 is adapted to the shape of the spare cartridge 150. Thus, the two clamping protrusions 165 contact the spare cartridge 150 over a larger area, and the clamping effect on the spare cartridge 150 is better.

[0047] Referring to Figure 1 and Figure 2 , the cartridge mounting position 130 is provided with two connecting grooves 133 corresponding to the two ends of the spare cartridge 150. The connecting grooves 133 are recessed from the side of the cartridge mounting position 130 facing the end surface of the spare cartridge 150 and away from the spare cartridge 150. One side of the connecting grooves 133 extends to the second mounting opening 131 and communicates with the second mounting opening 131. The connecting member 160 is arranged in the connecting grooves 133, and the clamping sub-member 162 is arranged in the connecting grooves 133. Thus, the clamping sub-member 162 is better connected to the cartridge mounting position 130.

[0048] When the spare cartridge 150 is mounted in the cartridge mounting position 130, the two ends of the spare cartridge 150 are respectively sleeved in the two connecting grooves 133, and the end surfaces abut against the groove bottoms of the two connecting grooves 133. Thus, the mounting effect of the spare cartridge 150 on the cartridge mounting position 130 is enhanced, and the spare cartridge 150 is less likely to be detached from the cartridge mounting position 130.

[0049] Referring to Figure 1 and Figure 2 , the two ends of the clamping sub-member 162 are recessed in the direction away from the second mounting opening 131 to form insertion grooves 166. The insertion grooves 166 extend through the clamping sub-member 162 in the deformation direction of the clamping sub-member 162. The walls of the connecting grooves 133 are protruded to form insertion blocks 134 corresponding to the insertion grooves 166. When the clamping sub-member 162 deforms, the insertion blocks 134 and the insertion grooves 166 slide relative to each other. The connecting grooves 133 can guide and limit the deformation of the clamping sub-member 162, thereby enhancing the stability of the clamping sub-member 162 when deforming.

[0050] Referring to Figure 1 and Figure 2 , one side of the insertion grooves 166 extends through the side of the clamping sub-member 162 close to the spare cartridge 150. Thus, the clamping sub-member 162 is facilitated to be mounted in the connecting grooves 133.

[0051] Referring to Figure 1 and Figure 2The shape of the connecting groove 133 is matched with the shape of the clamping sub-member 162, and the two ends of the connecting groove 133 and the clamping sub-member 162 are arranged at intervals in the deformation direction of the clamping sub-member 162, so that the connecting effect of the connecting groove 133 and the clamping sub-member 162 is good without affecting the deformation of the clamping sub-member 162.

[0052] Please refer to Figure 1 and Figure 2 The electrical connection end of the spare cartridge 150 is provided with a sealing piece 170 for sealing the air inlet hole of the spare cartridge 150. Thus, the tobacco oil in the spare cartridge 150 cannot leak from the air inlet hole to the electronic control device, reducing the probability of damage to the electronic control device by the tobacco oil.

[0053] Please refer to Figure 1 and Figure 2 The smoke outlet end of the spare cartridge 150 is provided with a sealing plug 180 for sealing the smoke outlet end of the spare cartridge 150. Thus, the tobacco oil in the spare cartridge 150 cannot leak out of the smoke outlet end.

[0054] The taste and / or power of the working cartridge 140 and the taste and / or power of the spare cartridge 150 can be different, so that the electronic cigarette 100 of the present application can provide cartridges with different tastes and / or powers, and the user's experience is good.

[0055] Please refer to Figure 1 and Figure 2 The number of the spare cartridges 150 is at least two, and the at least two spare cartridges 150 are arranged in the length direction of the shell 110, the connecting sub-member 161 extends in the length direction of the shell 110, the number of the clamping sub-members 162 is twice the number of the spare cartridges 150, and the at least four clamping sub-members 162 are arranged one by one corresponding to the two ends of the at least two spare cartridges 150. The taste and / or power of the at least two spare cartridges 150 can also be different. Thus, the electronic cigarette 100 of the present application can provide more cartridges with different tastes and / or powers.

[0056] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made according to the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. An electronic cigarette, characterized in that, The utility model relates to a cartridge replacement device for a smoking device, comprising: a housing formed with a working installation position and a storage installation position, the working installation position and the storage installation position having first and second installation openings, respectively; a working cartridge capable of being detachably installed in the working installation position via the first installation opening; two connecting members disposed on opposite sides of the storage installation position, the connecting members comprising connecting sub-members and clamping sub-members connected to each other, the connecting sub-members being connected to the storage installation position, the clamping sub-members being located in the storage installation position, the clamping sub-members having openings facing the second installation opening, the clamping sub-members being capable of deforming, the openings being capable of being enlarged under the action of an external force and being capable of recovering after the external force disappears; and a spare cartridge capable of being detachably installed in the storage installation position via the second installation opening and the openings, the ends of the spare cartridge being sleeved in the two clamping sub-members when the spare cartridge is installed in the storage installation position; the spare cartridge being capable of replacing the working cartridge and being installed in the working installation position. The clamping sub-members comprise clamping ring portions and two clamping protrusions, the openings being formed in the clamping ring portions, the clamping ring portions being capable of being opened under the action of the external force and being capable of recovering after the external force disappears, the two clamping protrusions being disposed on the inner ring walls of the clamping ring portions, the two clamping protrusions being disposed close to the openings and on both sides of the openings, the distance between the two clamping protrusions being less than the diameter of the spare cartridge.

2. The electronic cigarette of claim 1, wherein, The clamping protrusions are formed by the inner ring walls of the clamping ring portions protruding towards the interiors of the clamping ring portions.

3. The electronic cigarette of claim 2, wherein, The clamping protrusions are curved, the shapes of the portions of the clamping protrusions facing away from the openings being adapted to the shape of the spare cartridge.

4. The electronic cigarette of claim 2, wherein, The storage installation position is formed with two connecting grooves corresponding to the ends of the spare cartridge, the connecting grooves being formed by the side of the storage installation position facing the end faces of the spare cartridge being recessed in a direction away from the spare cartridge, the side of the connecting grooves extending to and communicating with the second installation opening; the connecting members being disposed in and connected to the connecting grooves, the clamping sub-members being located in the connecting grooves; 5. The electronic cigarette of claim 1, wherein, the end faces of the ends of the spare cartridge abutting the groove bottoms of the two connecting grooves when the spare cartridge is installed in the storage installation position. The ends of the clamping sub-members are recessed in a direction away from the second installation opening to form insertion grooves, the insertion grooves penetrating the clamping sub-members in the deforming direction of the clamping sub-members, the connecting grooves being formed with insertion blocks corresponding to the insertion grooves, the insertion blocks and the insertion grooves sliding relative to each other when the clamping sub-members deform; 6. The electronic cigarette of claim 5, wherein, one side of the insertion grooves extending and penetrating the clamping sub-members close to the side of the spare cartridge. The shapes of the connecting grooves are adapted to the shapes of the ends of the clamping sub-members, the connecting grooves and the ends of the clamping sub-members being spaced apart in the deforming direction of the clamping sub-members.

7. The electronic cigarette of claim 5, wherein, The electric connection end of the spare cartridge is provided with a closing piece for sealing the air inlet hole of the spare cartridge, and the smoke outlet end of the spare cartridge is provided with a sealing plug for sealing the smoke outlet end of the spare cartridge.

8. The electronic cigarette of claim 1, wherein, ​ 9. The electronic cigarette of claim 1, wherein, The number of the spare cartridges is at least two, the at least two spare cartridges are arranged in the length direction of the shell, the connecting sub-piece extends in the length direction of the shell, the number of the clamping sub-pieces is twice the number of the spare cartridges, and the at least four clamping sub-pieces are arranged in one-to-one correspondence with two ends of the at least two spare cartridges.

10. The electronic cigarette of any one of claims 1 to 9, wherein, The shape of the working installation position is matched with the shape of the working cartridge, the shape of the cartridge storage installation position is matched with the shape of the spare cartridge, and the working installation position and the cartridge storage installation position penetrate through the shell in the thickness direction of the shell.

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