Air pump shell, air pump structure, seat and vehicle

Abstract

The utility model provides an air pump shell, an air pump structure, a seat and an automobile, the air pump shell is used for installing an air pump (01), the air pump shell comprises a shell (1), the shell (1) is provided with a containing cavity (1A), the shell wall of the shell (1) is hollow to form an interlayer (1B), the shell wall is provided with a first hole (1a) and a second hole (1b), the first hole (1a) is communicated with the containing cavity (1A) and the interlayer (1B), and the second hole (1b) is communicated with the interlayer (1B) and the outer space of the shell (1). According to the noise reduction device, the containing cavity is formed in the shell and plays a role in containing the air pump, the air pump is separated from the external environment through the shell, and the noise reduction purpose is achieved; the shell wall of the shell is hollow to form an interlayer, the effect of containing and protecting a power line of the air pump is achieved, the damage risk of the power line caused by external physical impact is reduced, the cracking or short circuit risk of an insulating layer is reduced as much as possible, and reliable connection between the air pump and an external power supply device is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air pumps, in particular to an air pump shell, an air pump structure, a seat and a vehicle. BACKGROUND

[0002] The seat waist support air pump will generate vibration and noise during operation. The air pump shell in the related art has a containing cavity for wrapping the seat waist support air pump to reduce the transmission of vibration and noise when the seat waist support air pump is working. Meanwhile, the air pump shell adopts a side wall opening to cooperate with an external wire slot to fix the power cord of the seat waist support air pump. However, this design has significant defects. Firstly, the exposed cable is easily damaged by external force, leading to the risk of insulation layer rupture or short circuit. Secondly, the wire slot occupies the surface space of the shell, hindering the development of lightweight equipment. Therefore, how to efficiently integrate the power cord without damaging the integrity of the shell has become a technical difficulty that needs to be overcome in the field. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to provide an air pump shell, an air pump structure, a seat and a vehicle, which can efficiently integrate the power cord of the air pump without damaging the integrity of the shell.

[0004] To solve the above technical problems, the present application provides an air pump shell for installing an air pump, which comprises:

[0005] A shell, the inside of the shell has a containing cavity, the shell wall of the shell is hollow to form a sandwich layer, the shell wall has a first hole and a second hole, the first hole communicates the containing cavity and the sandwich layer, and the second hole communicates the sandwich layer and the outside space of the shell.

[0006] The air pump shell of the present application comprises a shell, the inside of the shell has a containing cavity, which serves to accommodate the air pump. Thus, the air pump is separated from the external environment by the shell, achieving the purpose of noise reduction. The shell wall of the shell is hollow to form a sandwich layer, and the shell wall has a first hole and a second hole. The first hole communicates the containing cavity and the sandwich layer, and the second hole communicates the sandwich layer and the outside space of the shell. In this way, the power cord of the air pump enters the sandwich layer through the first hole, and the electrical connection end of the power cord is led out to the outside space of the shell through the second hole to be connected with an external power supply device, which supplies power to the air pump. As described above, the sandwich layer serves to accommodate the power cord of the air pump. The power cord of the air pump does not occupy any extra space, and there is no need for an external wire slot to fix the power cord of the air pump. The size of the shell can be reduced, and the production cost is also reduced. On the other hand, the sandwich layer can provide an additional protective layer for the power cord of the air pump, reducing the risk of damage to the power cord due to external physical impact, minimizing the risk of insulation layer rupture or short circuit, ensuring reliable connection between the air pump and the external power supply device, and ensuring normal operation of the air pump.

[0007] Therefore, the air pump shell can realize efficient integration of the power line of the air pump without damaging the integrity of the shell.

[0008] Optionally, a hole axis of the second hole extends along a height direction of the shell.

[0009] Optionally, the second hole is located at an upper end of the shell, and / or the first hole is close to a lower end of the shell.

[0010] Optionally, the air pump shell further comprises a damping assembly arranged in the accommodating cavity, and the damping assembly comprises a first damping member, and the first damping member comprises:

[0011] The air pump connecting portion is in an annular structure, an outer periphery of the air pump connecting portion is connected to a shell wall of the shell, a middle portion of the air pump connecting portion is used for the air pump to pass through, and an upper side wall of the air pump connecting portion forms a support wall used for supporting the air pump.

[0012] Optionally, the first damping member further comprises:

[0013] A plurality of shell connecting portions are connected to an outer peripheral wall of the air pump connecting portion and are distributed along a circumferential direction of the air pump connecting portion, and the shell connecting portions are connected to the shell wall of the shell.

[0014] Optionally, the shell connecting portion comprises a first connecting portion connected to the air pump connecting portion, and the first connecting portion has a through hole penetrating in an axial direction.

[0015] Optionally, the shell wall has a connecting through hole penetrating in an inner-outer direction, the shell connecting portion comprises a plug-in portion and a limiting portion, the limiting portion is connected to an outer end of the plug-in portion, a stepped portion facing an inner end is formed between the limiting portion and the plug-in portion, the plug-in portion passes through an inner portion of the connecting through hole, the limiting portion is located at an outer side of the shell wall, and the stepped portion and an outer wall of the shell wall abut.

[0016] Optionally, the damping assembly further comprises a second damping member, the first damping member and the second damping member are distributed in an axial direction, and a middle portion of the second damping member is used for the air pump to pass through.

[0017] Optionally, the shell comprises a first half shell and a second half shell distributed in a circumferential direction, the first half shell and the second half shell are connected to each other, and the first half shell and the second half shell enclose the accommodating cavity.

[0018] The application further provides an air pump structure comprising the air pump shell and an air pump, the air pump has a power line, the air pump is located in the accommodating cavity, the power line enters the interlayer from the first hole, and an electric connection end of the power line passes out from the second hole.

[0019] The air pump structure of the present application comprises the aforementioned air pump shell, thus having the same technical effects as the aforementioned air pump shell, which will not be repeated here.

[0020] Optionally, the outer peripheral wall of the air pump has a stepped portion facing the lower end, and the stepped portion and the supporting wall of the shock-absorbing assembly abut.

[0021] The present application also provides a seat comprising the aforementioned air pump structure, further comprising a seat framework, and the air pump structure is connected to the seat framework.

[0022] The seat of the present application comprises the aforementioned air pump structure, thus having the same technical effects as the aforementioned air pump structure, which will not be repeated here.

[0023] The present application also provides a vehicle comprising the aforementioned seat.

[0024] The vehicle of the present application comprises the aforementioned seat, thus having the same technical effects as the aforementioned seat, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A sectional view of a specific embodiment of the air pump structure of the present application;

[0026] Figure 2 A structural schematic view of the air pump structure from a second angle; Figure 1

[0027] In the drawings, Figures 1-2 The reference signs in the drawings are as follows:

[0028] 1 - shell; 1A - accommodating cavity; 1B - interlayer; 1a - first hole; 1b - second hole; 11 - first half shell; 12 - second half shell;

[0029] 2 - shock-absorbing assembly; 21 - first shock-absorbing piece; 211 - air pump connecting portion; 211a - supporting wall; 212 - shell connecting portion; 2121 - first connecting portion; 2122 - plug-in portion; 2123 - limiting portion; a - through hole; 22 - second shock-absorbing piece;

[0030] 01 - air pump; 011 - stepped portion. DETAILED DESCRIPTION

[0031] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0032] In this document, "several" generally refers to two or more.

[0033] Please refer to Figure 1 , Figure 1 ​A sectional view of one specific embodiment of the air pump structure provided by the present application.

[0034] The present embodiment provides an air pump shell for mounting an air pump 01, which comprises:

[0035] A shell 1, the inside of the shell 1 has a containing cavity 1A, the shell wall of the shell 1 is hollowly arranged to form a sandwich layer 1B, the shell wall has a first hole 1a and a second hole 1b, the first hole 1a communicates the containing cavity 1A and the sandwich layer 1B, and the second hole 1b communicates the sandwich layer 1B and the outside space of the shell 1.

[0036] The air pump shell of the present embodiment comprises a shell 1, the inside of the shell 1 has a containing cavity 1A, which serves to contain the air pump 01, so that the air pump 01 is separated from the external environment by the shell 1, achieving the purpose of noise reduction; at the same time, the shell wall of the shell 1 is hollowly arranged to form a sandwich layer 1B, and the shell wall has a first hole 1a and a second hole 1b, the first hole 1a communicates the containing cavity 1A and the sandwich layer 1B, and the second hole 1b communicates the sandwich layer 1B and the outside space of the shell 1. In this way, the power cord of the air pump 01 will enter the sandwich layer 1B through the first hole 1a, and the electrical connection end of the power cord will pass out to the outside space of the shell 1 through the second hole 1b to be connected with the external power supply device, and the air pump 01 is powered by the external power supply device. As described above, the design of the sandwich layer 1B can serve to contain the power cord of the air pump 01, the power cord of the air pump 01 does not occupy any extra space, and there is no need for an external wire slot to fix the power cord of the air pump 01, so the size of the shell 1 can be reduced, and the production cost is also reduced; on the other hand, the sandwich layer 1B can provide an additional protective layer for the power cord of the air pump 01, reducing the risk of damage to the power cord due to external physical impact, minimizing the risk of insulation layer rupture or short circuit, ensuring reliable connection between the air pump 01 and the external power supply device, and ensuring normal operation of the air pump 01.

[0037] As can be seen, the air pump shell of the present application can efficiently integrate the power cord of the air pump 01 without damaging the integrity of the shell.

[0038] As can be seen from Figure 1 , in the present embodiment, the hole axis of the second hole 1b extends along the height direction of the shell 1. In this way, the power cord can pass out from the second hole 1b along the height direction of the shell 1, reducing the bending of the power cord and further reducing the risk of insulation layer rupture or short circuit.

[0039] Wherein, the height direction of the shell 1 is defined as Figure 1 the upward and downward direction as shown in the figure.

[0040] As can be seen from Figure 1 , in the present embodiment, the second hole 1b is located at the upper end of the shell 1, and the first hole 1a is close to the lower end of the shell 1.

[0041] Therefore, after the air pump 01 is installed in the accommodating cavity 1A, the connecting end of the power supply line close to the first hole 1a, the power supply line can enter the interlayer 1B more, the interlayer 1B plays a protective role for the power supply line, further reduces the damage risk of the power supply line caused by external physical impact, and the electric connection end of the power supply line is worn out from the upper end of the shell 1, which is more convenient for the electric connection end of the power supply line to be connected with the external power supply device, and ensures the electric connection reliability.

[0042] Please refer to Figure 1 In the embodiment, the air pump shell further comprises a damping assembly 2, the damping assembly 2 is arranged in the accommodating cavity 1A, and the damping assembly 2 is used for suspending the air pump 01 and separating the air pump 01 from the shell 1.

[0043] Therefore, the damping assembly 2 can absorb the vibration generated by the air pump 01 during operation, play a role in buffering and energy absorption, avoid direct contact between the air pump 01 and the shell 1, avoid the vibration generated by the air pump 01 during operation being directly transmitted to the outside by the shell 1, further weaken the transmission of the vibration noise of the air pump 01 during operation, improve the quietness inside the cabin, and provide better riding experience for the user.

[0044] Among them, the damping assembly 2 comprises a first damping piece 21, and the first damping piece 21 comprises:

[0045] The air pump connecting portion 211 is an annular structure, the outer periphery of the air pump connecting portion 211 is connected to the shell wall of the shell 1, the middle part of the air pump connecting portion 211 is used for the air pump 01 to pass through, and the upper side wall of the air pump connecting portion 211 forms a supporting wall 211a used for supporting the air pump 01.

[0046] By Figure 1 As can be seen, in the embodiment, the outer peripheral wall of the air pump 01 has a step portion 011 facing the lower end, in the installed state, the air pump 01 passes through the middle part of the air pump connecting portion 211, the inner peripheral wall of the air pump connecting portion 211 and the outer peripheral wall of the air pump 01 are in interference fit, and the step portion 011 of the air pump 01 is supported on the supporting wall 211a of the air pump connecting portion 211, so as to realize the fixation of the air pump 01 and ensure the stable installation of the air pump 01 inside the air pump shell.

[0047] Of course, the air pump connecting portion 211 and the air pump 01 are not limited to the above-mentioned interference fit fixation mode, for example, in some other embodiments of the present application, one of the inner peripheral wall of the air pump connecting portion 211 and the outer peripheral wall of the air pump 01 is provided with a protruding portion, and the other is provided with a recess portion, the protruding portion is clamped in the inner part of the recess portion, and the reliable connection of the air pump connecting portion 211 and the air pump 01 is realized.

[0048] Please continue to refer to Figure 1 With Figure 2 In the embodiment, the first damping piece 21 further comprises:

[0049] A plurality of shell connecting portions 212 are connected to the outer peripheral wall of the air pump connecting portion 211 and are distributed along the circumferential direction of the air pump connecting portion 211, and the shell connecting portions 212 are connected to the shell wall of the shell 1.

[0050] In this way, the air pump connecting portion 211 is connected to the shell wall of the shell 1 through the plurality of shell connecting portions 212, which ensures reliable connection between the air pump connecting portion 211 and the shell 1, and further ensures stable installation of the air pump 01 inside the air pump shell.

[0051] By Figure 2 It can be seen that in the embodiment, the number of shell connecting portions 212 is two, and the two shell connecting portions 212 are oppositely arranged along the radial direction of the air pump connecting portion 211. In practice, the number of shell connecting portions 212 is not limited, as long as it can ensure reliable connection between the air pump connecting portion 211 and the shell 1, such as more than three shell connecting portions 212.

[0052] As Figure 2 shown, in the embodiment, the shell connecting portion 212 includes a first connecting portion 2121 connecting the air pump connecting portion 211, and the first connecting portion 2121 has an axial through hole a.

[0053] The arrangement of the through hole a as described above weakens the structural strength of the shell connecting portion 212, and further enhances the deformation ability of the shell connecting portion 212, enhances the energy absorption capacity of the shell connecting portion 212, so that the vibration generated by the air pump 01 during operation can be more greatly absorbed by the damping assembly 2, and further weaken the transmission of vibration noise during operation of the air pump 01.

[0054] As Figure 2 shown, in the embodiment, the shell wall has a connecting through hole penetrating the inside and outside, the shell connecting portion 212 further includes a plug-in portion 2122 and a limiting portion 2123, the plug-in portion 2122 connects the first connecting portion 2121 and the limiting portion 2123, the limiting portion 2123 and the plug-in portion 2122 form a first step portion facing the inner end, the plug-in portion 2122 and the first connecting portion 2121 form a second step portion facing the outer end, the plug-in portion 2122 passes through the inside of the connecting through hole, the limiting portion 2123 is located on the outside of the shell wall, the first step portion and the outer wall surface of the shell wall abut, the first connecting portion 2121 is located on the inside of the shell wall, and the second step portion and the inner wall surface of the shell wall abut.

[0055] As arranged above, the first connecting portion 2121 and the limiting portion 2123 can play a limiting role. The limiting portion 2123 is located outside the shell wall, the first step portion and the outer wall surface of the shell wall abut, limiting the inward movement of the plug-in portion 2122, the first connecting portion 2121 is located inside the shell wall, the second step portion and the inner wall surface of the shell wall abut, limiting the outward movement of the plug-in portion 2122, thereby ensuring the stable connection between the shell connecting portion 212 and the shell wall.

[0056] Please continue to refer to Figure 1 In the embodiment, the shock absorption assembly 2 further includes a second shock absorption piece 22. The first shock absorption piece 21 and the second shock absorption piece 22 are spaced apart along the axial direction. The middle part of the second shock absorption piece 22 is used for the air pump 01 to pass through.

[0057] As arranged above, in the mounted state, the first shock absorption piece 21 is sleeved on the middle part of the air pump 01, and the second shock absorption piece 22 is sleeved on the lower end of the air pump 01. The first shock absorption piece 21 and the second shock absorption piece 22 jointly act to fix the air pump 01. In this way, by arranging the fixing points at different heights of the air pump 01, the mounting stability of the air pump 01 can be improved, the inclination of the air pump 01 after long-time work can be avoided as much as possible, the direct contact between the air pump 01 and the shell 1 can be avoided as much as possible, the vibration generated by the air pump 01 during work can be directly transmitted to the outside by the shell 1 as much as possible, the transmission of the vibration noise of the air pump 01 during work is weakened, the quietness inside the cabin is improved, and better riding experience is provided for the user.

[0058] In the embodiment, the second shock absorption piece 22 has a ring structure. The outer periphery of the second shock absorption piece 22 is connected to the shell wall of the shell 1, and the inner peripheral wall of the second shock absorption piece 22 is used for interference fit with the outer peripheral wall of the air pump 01, thereby fixing the air pump 01.

[0059] In practice, the second shock absorption piece 22 is not limited to the above-mentioned ring structure. For example, in some embodiments of the present application, the second shock absorption piece 22 can include a plurality of split portions. The plurality of split portions are spaced apart along the circumferential direction and enclose a circle. The inner peripheral wall of the split portion is used for interference fit with the outer peripheral wall of the air pump 01, thereby fixing the air pump 01.

[0060] In addition, the fixing manner of the second shock absorption piece 22 and the air pump 01 is not limited. For example, in some embodiments of the present application, among the inner peripheral wall of the second shock absorption piece 22 and the outer peripheral wall of the air pump 01, one is provided with a protruding portion, and the other is provided with a recessed portion. The protruding portion is clamped in the inner part of the recessed portion, thereby fixing the air pump 01.

[0061] As shown in Figure 1 In the embodiment, the shell 1 includes a first half shell 11 and a second half shell 12 distributed along the circumferential direction. The first half shell 11 and the second half shell 12 are connected to each other, and the first half shell 11 and the second half shell 12 enclose a containing cavity 1A.

[0062] As arranged above, the shell 1 in the embodiment adopts a split structure comprising the first half shell 11 and the second half shell 12, and the first half shell 11 and the second half shell 12 are distributed in the circumferential direction. In assembly, the damping assembly 2 can be first placed between the first half shell 11 and the second half shell 12, then the damping assembly 2 is connected to the first half shell 11 and the second half shell 12, and then the first half shell 11 and the second half shell 12 are connected to each other. It can be seen that the structure of the shell 1 in the embodiment is more convenient for installing the damping assembly 2 inside the shell 1, improves the assembly efficiency of the damping assembly 2, and improves the production efficiency of the air pump shell.

[0063] The connection mode of the first half shell 11 and the second half shell 12 is not limited, and in some embodiments, the first half shell 11 and the second half shell 12 can be connected in a detachable manner, for example, the first half shell 11 and the second half shell 12 are fixedly connected by bolts or other connecting members, or the first half shell 11 and the second half shell 12 are fixedly connected by a clamping mode, which is reliable and convenient for disassembly and assembly. In other embodiments, the first half shell 11 and the second half shell 12 can be fixedly connected by welding, which effectively improves the connection strength of the first half shell 11 and the second half shell 12 and ensures the connection stability of the first half shell 11 and the second half shell 12.

[0064] The embodiment also provides an air pump structure comprising the air pump shell and further comprising an air pump 01. The air pump 01 has a power line, the air pump 01 is located in the accommodating cavity 1A, and the power line enters the interlayer 1B from the first hole 1a and the electrically connected end of the power line passes out from the second hole 1b.

[0065] The air pump structure in the embodiment comprises the air pump shell, and thus has the same technical effects as the air pump shell, which will not be described here again.

[0066] As shown in the drawings, Figure 1 In the embodiment, the outer peripheral wall of the air pump 01 has a step portion 011 facing the lower end, and the step portion 011 abuts against the supporting wall 211a of the damping assembly 2.

[0067] As arranged above, the outer peripheral wall of the air pump 01 has a step portion 011 facing the lower end, and the step portion 011 abuts against the supporting wall 211a of the damping assembly 2 in the mounted state, thereby limiting the air pump 01 and the air pump connecting portion 211 in the height direction. In other words, the supporting wall 211a of the damping assembly 2 can play a supporting role on the air pump 01, thereby ensuring the reliable installation of the air pump 01 inside the air pump shell.

[0068] The embodiment also provides a seat comprising the air pump structure and further comprising a seat framework, and the air pump structure is connected to the seat framework.

[0069] The seat of the embodiment comprises the air pump structure as described above, and thus has the same technical effects as the air pump structure as described above, which will not be repeated here.

[0070] The air pump structure can be connected to the seat framework in various ways. In some embodiments, the shell 1 of the air pump structure is fastened to the seat framework by a connecting member such as a self-tapping screw, thereby fixing the air pump 01. The structure is simple, the connection is reliable, and the air pump structure is easy to disassemble and assemble.

[0071] The embodiment also provides a vehicle comprising the seat as described above.

[0072] The vehicle of the embodiment comprises the seat as described above, and thus has the same technical effects as the seat as described above, which will not be repeated here.

[0073] The above is only a preferred embodiment of the present application. It should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application. These improvements and refinements should also be considered within the scope of the present application.

Claims

1. A gas pump housing for mounting a gas pump (01), characterized in that The air pump shell comprises: An outer shell (1) having an accommodating cavity (1A) in the interior thereof, a shell wall of the outer shell (1) being hollowly arranged to form a sandwich layer (1B), the shell wall having a first hole (1a) and a second hole (1b), the first hole (1a) being in communication with the accommodating cavity (1A) and the sandwich layer (1B), and the second hole (1b) being in communication with the sandwich layer (1B) and an external space of the outer shell (1).

2. The gas pump housing of claim 1, wherein, A hole axis of the second hole (1b) extends along a height direction of the outer shell (1).

3. The gas pump housing of claim 1, wherein, The second hole (1b) is located at an upper end of the outer shell (1), and / or the first hole (1a) is close to a lower end of the outer shell (1).

4. The gas pump housing of claim 1, wherein, The air pump shell further comprises a damping assembly (2) arranged in the accommodating cavity (1A), the damping assembly (2) comprising a first damping member (21), the first damping member (21) comprising: An air pump connecting portion (211) in a ring structure, an outer periphery of the air pump connecting portion (211) being connected to a shell wall of the outer shell (1), a middle portion of the air pump connecting portion (211) being used for the air pump (01) to pass through, and an upper side wall of the air pump connecting portion (211) forming a supporting wall (211a) used for supporting the air pump (01).

5. The gas pump housing of claim 4, wherein, The first damping member (21) further comprises: A plurality of shell connecting portions (212) connected to an outer peripheral wall of the air pump connecting portion (211) and distributed along a circumferential direction of the air pump connecting portion (211), the shell connecting portions (212) being connected to the shell wall of the outer shell (1).

6. The gas pump housing of claim 5, wherein, The shell connecting portion (212) comprises a first connecting portion (2121) connected to the air pump connecting portion (211), the first connecting portion (2121) having a through hole (a) penetrating in an axial direction.

7. The gas pump housing of claim 6, wherein, The shell wall has a connecting through hole penetrating in an inner-outer direction, the shell connecting portion (212) further comprising a plug-in portion (2122) and a limiting portion (2123), the plug-in portion (2122) being connected to the first connecting portion (2121) and the limiting portion (2123), a first stepped portion facing an inner end being formed between the limiting portion (2123) and the plug-in portion (2122), a second stepped portion facing an outer end being formed between the plug-in portion (2122) and the first connecting portion (2121), the plug-in portion (2122) penetrating from an inner side of the connecting through hole, the limiting portion (2123) being located at an outer side of the shell wall, the first stepped portion abutting against an outer wall surface of the shell wall, and the first connecting portion (2121) being located at an inner side of the shell wall, the second stepped portion abutting against an inner wall surface of the shell wall.

8. The gas pump housing according to any one of claims 4 to 7, characterized in that The damping assembly (2) further comprises a second damping member (22), the first damping member (21) and the second damping member (22) being distributed in an axial direction, and a middle portion of the second damping member (22) being used for the air pump (01) to pass through.

9. The gas pump housing according to any one of claims 1 to 7, characterized in that The shell (1) comprises a first half shell (11) and a second half shell (12) distributed in a circumferential direction, the first half shell (11) and the second half shell (12) are connected to each other, and the first half shell (11) and the second half shell (12) enclose the accommodating cavity (1A).

10. A gas pump structure, characterized by, The air pump shell comprises the air pump shell according to any one of claims 1-9, and further comprises an air pump (01), the air pump (01) has a power line, the air pump (01) is located in the accommodating cavity (1A), the power line enters the interlayer (1B) from the first hole (1a), and an electrically connected end of the power line passes out from the second hole (1b).

11. The gas pump structure according to claim 10, wherein The outer peripheral wall of the air pump (01) has a step portion (011) facing the lower end, and the step portion (011) is in abutment with the supporting wall (211a) of the shock absorption assembly (2).

12. A seat, characterized by The air pump structure comprises the air pump structure according to claim 10 or 11, and is connected to a seat framework.

13. A vehicle characterized by comprising: The seat comprises the seat according to claim 12.

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