Air pump

Abstract

The present disclosure provides an air pump, comprising a main body, an air pipe, a clamping structure and a button structure; the clamping structure and the button structure are both installed on the main body, the air pipe has a movable end; the clamping structure has a clamping state and a non-clamping state, in which the clamping structure clamps the movable end, and in which the clamping structure releases the movable end; when the button structure is pressed, the clamping structure is driven to switch from the clamping state to the non-clamping state. The movable end of the air pipe of the air pump can be effectively stored and is convenient to take.

Description

Technical Field

[0001] The present disclosure relates to the technical field of air pumps, and in particular to an air pump. Background Art

[0002] An air pump is a device used to quickly inflate tires, etc. The air pump can efficiently compress air with the help of electricity and introduce the air into the tire. In order to guide the compressed air, the air pump is generally equipped with an air pipe, which has an air inlet end and a movable end. The air inlet end is connected to the air outlet of the air pump cylinder, and the movable end is connected to the valve of the tire to be inflated. When the air pump is not in operation, the movable end of the air pipe needs to be stored.

[0003] In the related art, both ends of the air pipe of the air pump can be fixed at the same time, and the middle part is relatively protruding to be used as a handle of the air pump. Generally, the movable end of the air pipe is clamped on the air pump body.

[0004] However, the snap-on method is prone to the situation where the snap-on amount is too large, making it difficult for the user to pull it out, or the snap-on amount is too small, making it easy for the active end of the trachea to fall out. Utility Model Content

[0005] In view of this, the present disclosure provides an air pump, the movable end of the air pipe of which can be effectively stored and is convenient to take.

[0006] Specifically, the following technical solutions are included:

[0007] An air pump comprises a main body, an air pipe, a clamping structure and a button structure;

[0008] The clamping structure and the button structure are both mounted on the main body, and the air pipe has a movable end;

[0009] The clamping structure has a clamping state and a non-clamping state, in which the clamping structure clamps the movable end, and in the non-clamping state the clamping structure releases the movable end;

[0010] When the button structure is pressed, the clamping structure is driven to switch from the clamping state to the non-clamping state.

[0011] Optionally, the clamping structure includes a first clamping member, a second clamping member and a first elastic member;

[0012] The first clamping member and the second clamping member are arranged opposite to each other, and the first elastic member biases the first clamping member and the second clamping member to clamp the movable end.

[0013] Optionally, the first clamping member includes a first clamping portion and a first movable portion connected to each other, and the second clamping member includes a second clamping portion and a second movable portion connected to each other;

[0014] The first clamping portion is opposite to the second clamping portion and encloses a clamping space for clamping the movable end;

[0015] The first movable portion is opposite to the second movable portion, and the first elastic member applies force to the first movable portion and the second movable portion respectively, so that the first clamping portion and the second clamping portion are maintained in a clamping state.

[0016] Optionally, the clamping structure further includes a mounting shaft, the first elastic member includes a torsion spring, and the first movable portion, the second movable portion and the first elastic member are all sleeved on the mounting shaft;

[0017] The first movable portion and the first clamping portion are located on the same side of the second movable portion and the second clamping portion;

[0018] The first free end of the first elastic member presses against a side of the first movable portion close to the second movable portion, and the second free end presses against a side of the second movable portion close to the first movable portion.

[0019] Optionally, the button structure includes a button, an elastic arm and a fixing portion, and the button includes a first pushing portion and a second pushing portion;

[0020] The fixing portion is fixedly connected to the main body, the elastic arms are respectively connected to the fixing portion and the button, and the elastic arms bias the button to a non-pressed state;

[0021] When the button is pressed to enter the pressed state, the first pushing portion and the second pushing portion respectively push the first movable portion and the second movable portion to move, so that the first clamping portion and the second clamping portion are switched to the non-clamping state.

[0022] Optionally, the first movable portion and the second movable portion respectively have a first movable inclined surface and a second movable inclined surface, and the first pushing portion and the second pushing portion respectively have a first pushing inclined surface and a second pushing inclined surface;

[0023] When the button is pressed, the first push slope and the second push slope respectively contact with the first movable slope and the second movable slope and slide relatively.

[0024] Optionally, the button includes a pressing portion, the pressing portion is connected to the first pushing portion and the second pushing portion, and the pressing portion protrudes relative to the main body when the button is in a non-pressed state.

[0025] Optionally, the outer wall of the movable end has a first clamping structure, and the first clamping portion and / or the second clamping portion has a second clamping structure; in the clamping state, the first clamping structure is clamped with the second clamping structure; in the non-clamping state, the first clamping structure is separated from the second clamping structure.

[0026] Optionally, one of the first clamping structure and the second clamping structure is a slot or a hole, and the other of the first clamping structure and the second clamping structure is a protruding structure or a shaft.

[0027] Optionally, the first pushing portion and / or the second pushing portion has a first limiting structure, and the main body has a second limiting structure, and the first limiting structure cooperates with the second limiting structure to prevent the button structure from escaping relative to the main body.

[0028] Optionally, one of the first limiting structure and the second limiting structure is a groove, and the other is a protruding structure.

[0029] Optionally, it also includes an ejection structure, which is configured to press the movable end outward.

[0030] Optionally, the ejection structure includes a ejection block and a second elastic member, one end of the second elastic member is fixed to the main body, and the other end is connected to the ejection block, and the ejection block is biased to press the movable end when the clamping structure clamps the movable end.

[0031] Optionally, the second elastic member is a spring.

[0032] Optionally, the main body has a mounting position, and the clamping structure is installed in the mounting position.

[0033] The disclosed embodiment provides an air pump having a clamping structure and a button structure. The clamping structure can clamp the movable end of the trachea so that the movable end of the trachea can be reliably stored. At the same time, when the button structure is pressed, the clamping structure can be switched from a clamping state to a non-clamping state, at which time the user can easily take out the movable end of the trachea. That is, the movable end of the trachea of ​​the air pump of the disclosed embodiment can be conveniently taken and reliably stored when storage is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 A partial structural schematic diagram of an air pump provided in an embodiment of the present disclosure;

[0036] Figure 2 for Figure 1 An exploded schematic diagram of the structure shown;

[0037] Figure 3 for Figure 1 The structure shown is a partially enlarged schematic diagram;

[0038] Figure 4 for Figure 1 A partial cross-sectional view of the structure shown;

[0039] Figure 5 for Figure 1 A partial cross-sectional view of the structure shown in another state;

[0040] Figure 6 A partial structural schematic diagram of another air pump provided in an embodiment of the present disclosure.

[0041] The reference numerals in the figures represent respectively:

[0042] 1-main body; 11-installation position; 12-second limiting structure;

[0043] 2-trachea; 21-active end; 211-first clamping structure;

[0044] 3-clamping structure; 31-first clamping member; 311-first clamping portion; 3111-second clamping structure; 312-first movable portion; 3121-first movable inclined surface; 32-second clamping member; 321-second clamping portion; 322-second movable portion; 3221-second movable inclined surface; 33-first elastic member; 331-first free end; 332-second free end; 34-installation axis; x-clamping space;

[0045] 4-button structure; 41-button; 411-first pushing part; 4111-first pushing inclined surface; 4112-first limiting structure; 412-second pushing part; 4121-second pushing inclined surface; 413-pressing part; 42-elastic arm; 43-fixing part;

[0046] 5- ejection structure; 51- ejection block; 52- second elastic member.

[0047] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0049] The directional nouns involved in the embodiments of the present disclosure, such as "upper", "lower", "side", etc., are generally based on the relative directional relationship between the structures when the air pump is usually arranged, and these directional nouns are used only to more clearly describe the relationship between the structures, not to describe the absolute directional. When the air pump is placed in different postures, the directional may change, for example, "upper" and "lower" may be interchangeable.

[0050] Unless otherwise defined, all technical terms used in the embodiments of the present disclosure have the same meanings as commonly understood by those of ordinary skill in the art.

[0051] In order to make the technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0052] The present disclosure provides an air pump. Figure 1 and Figure 2 The air pump comprises a main body 1, an air pipe 2, a clamping structure 3 and a button structure 4;

[0053] The clamping structure 3 and the button structure 4 are both mounted on the main body 1, and the air pipe 2 has a movable end 21;

[0054] The clamping structure 3 has a clamping state and a non-clamping state. In the clamping state, the clamping structure 3 clamps the movable end 21, and in the non-clamping state, the clamping structure 3 releases the movable end 21.

[0055] When the button structure 4 is pressed, the clamping structure 3 is driven to switch from the clamping state to the non-clamping state.

[0056] It should be noted that the air pump of the embodiment of the present disclosure may also include components such as a battery or a cylinder. The present disclosure only shows the structure related to the improvement point, and does not fully display the various components of the air pump, but this does not constitute a limitation of the present disclosure. The main body 1 in the embodiment of the present disclosure can be the housing of the air pump or the internal bracket, etc. The present disclosure does not limit the specific form of the main body. The active end of the air pipe in the embodiment of the present disclosure is an end for connecting to the component to be inflated.

[0057] In the disclosed embodiment, the clamping structure can clamp the movable end in the clamping state, so that the movable end of the air tube is effectively stored. If the middle part of the air tube is located outside the air pump body, the air tube can serve as a handle of the air pump. When the button structure is pressed, the clamping structure can be switched from the clamping state to the non-clamping state. After the clamping structure enters the non-clamping state, the movable end of the air tube will be released. At this time, the user can easily take out the movable end to perform operations such as inflating the tire.

[0058] That is, the air pump of the embodiment of the present disclosure has a clamping structure and a button structure, and the clamping structure can clamp the movable end of the trachea so that the movable end of the trachea can be reliably stored. At the same time, when the button structure is pressed, the clamping structure can be switched from a clamping state to a non-clamping state, and at this time, the user can easily take out the movable end of the trachea. Therefore, the movable end of the trachea of ​​the air pump of the embodiment of the present disclosure can be conveniently taken and reliably stored when it needs to be stored.

[0059] In some embodiments, reference Figure 2 , the clamping structure 3 includes a first clamping member 31, a second clamping member 32 and a first elastic member 33;

[0060] The first clamping member 31 and the second clamping member 32 are disposed opposite to each other, and the first elastic member 33 biases the first clamping member 31 and the second clamping member 32 to clamp the movable end 21 .

[0061] In this embodiment, the clamping structure is divided into two clamping members, and the two clamping members are biased by the first elastic member to clamp the movable end, so that when there is no external force, the position of the movable end is effectively limited and will not fall off easily. At the same time, the form of two clamping members can ensure that when the movable end needs to be taken out, the two clamping members no longer apply force to the movable end or no longer clamp the movable end, without the need for the clamping members to move significantly, which is conducive to improving the space utilization efficiency inside the air pump and reducing the volume of the air pump.

[0062] Optional, reference Figure 2 and Figure 6 The first clamping member 31 includes a first clamping portion 311 and a first movable portion 312 connected to each other, and the second clamping member 32 includes a second clamping portion 321 and a second movable portion 322 connected to each other;

[0063] The first clamping portion 311 is opposite to the second clamping portion 321 and encloses a clamping space x for clamping the movable end 21;

[0064] The first movable portion 312 is opposite to the second movable portion 322 , and the first elastic member 33 applies force to the first movable portion 312 and the second movable portion 322 respectively, so that the first clamping portion 311 and the second clamping portion 321 are kept in a clamping state.

[0065] In this embodiment, the first clamping part and the second clamping part are used to form a clamping space for clamping the movable end, and the first movable part and the second movable part are used to cooperate with the first elastic member to maintain the clamping state of the first clamping part and the second clamping part. When the first movable part and the second movable part are subjected to external force, they can overcome the biasing force of the first elastic member, so that the first clamping part and the second clamping part exit the clamping state, so that the movable end can be easily taken out. That is, with the help of the first movable part and the second movable part, it is easier to switch the state of the clamping structure.

[0066] Optional, reference Figure 2 , the clamping structure 3 further includes a mounting shaft 34 , the first elastic member 33 includes a torsion spring, and the first movable portion 312 , the second movable portion 322 and the first elastic member 33 are all sleeved on the mounting shaft 34 ;

[0067] The first movable portion 312 and the first clamping portion 311 are located on the same side of the second movable portion 322 and the second clamping portion 321;

[0068] The first free end 331 of the first elastic member 33 presses against a side of the first movable portion 312 close to the second movable portion 322 , and the second free end 332 presses against a side of the second movable portion 322 close to the first movable portion 312 .

[0069] In this embodiment, the clamping structure is actually implemented in the form of a clip, which has a simple structure, low cost, and high reliability. It should be noted that in the embodiment of the present disclosure, the first movable part and the first clamping part are located on the same side of the second movable part and the second clamping part, that is, the first clamping member and the second clamping member are arranged relative to each other as a whole. However, in other embodiments, the first clamping member and the second clamping member can also be arranged crosswise, in which case the first movable part and the first clamping part are respectively located on different sides of the second movable part and the second clamping part, for example, the first movable part is located on the first side of the second movable part, the first clamping part is located on the second side of the second clamping part, and the first side and the second side are opposite sides. In the case of cross-arrangement, the clamping structure is actually implemented in a form similar to "scissors", and those skilled in the art can understand that at this time, in order to realize the aforementioned biasing of the clamping structure in the clamping state, the form, position or number of the first elastic member needs to be adaptively adjusted, and the embodiment of the present disclosure does not elaborate on this.

[0070] In some embodiments, reference Figure 2 The button structure 4 includes a button 41, an elastic arm 42 and a fixing portion 43, and the button 41 includes a first pushing portion 411 and a second pushing portion 412;

[0071] The fixing portion 43 is fixedly connected to the main body 1, and the elastic arm 42 is respectively connected to the fixing portion 43 and the button 41, and the elastic arm 42 biases the button 41 in a non-pressed state;

[0072] When the button 41 is pressed to enter the pressed state, the first pushing portion 411 and the second pushing portion 412 push the first movable portion 312 and the second movable portion 322 to move respectively, so that the first clamping portion 311 and the second clamping portion 321 are switched to the non-clamping state.

[0073] In this embodiment, when the button of the button structure is pressed down, the first pushing part and the second pushing part can respectively push the first movable part and the second movable part to move, so that the first clamping part and the second clamping part are switched to the non-clamping state, and then the movable end of the trachea can be easily taken out. At the same time, since the fixed part of the button structure is fixed to the main body, the elastic arm is connected to the fixed part and the button respectively, and then when the external force applied to the button disappears, the elastic arm can drive the button to return to the original position, that is, the position corresponding to the non-pressing state. In this way, the clamping structure can also automatically return to the clamping state under the action of the first elastic member. When the user needs to store the trachea, the movable end of the trachea can be inserted between the two clamping members, so that the two clamping members automatically clamp the movable end of the trachea. If the movable end needs to be taken out again later, the user can press the button again. It can be seen that the air pump of the disclosed embodiment can realize the automatic resetting of the clamping structure and the button structure, which can effectively improve the user experience.

[0074] Optionally, refer to Figure 6 The first movable portion 312 and the second movable portion 322 respectively have a first movable inclined surface 3121 and a second movable inclined surface 3221 , and the first pushing portion 411 and the second pushing portion 412 respectively have a first pushing inclined surface 4111 and a second pushing inclined surface 4121 ;

[0075] When the button 41 is pressed, the first push inclined surface 4111 and the second push inclined surface 4121 contact with the first movable inclined surface 3121 and the second movable inclined surface 3221 respectively and slide relatively.

[0076] With the aid of the above-mentioned inclined surface setting, the resistance when the two pushing parts push the two movable parts to move can be reduced, thereby improving the smoothness of the state switching of the clamping structure triggered by pressing.

[0077] Optional, reference Figure 3 and Figure 6 The button 41 includes a pressing portion 413 , which is connected to the first pushing portion 411 and the second pushing portion 412 , and the pressing portion 413 protrudes relative to the main body 1 when the button 41 is in a non-pressed state.

[0078] Based on the above settings, it can effectively ensure that the user can more easily determine the position that needs to be pressed, and improve the convenience of operation when pressing.

[0079] In some embodiments, reference Figure 4 and Figure 5The outer wall of the movable end 21 has a first clamping structure 211, and the first clamping portion 311 and / or the second clamping portion 321 has a second clamping structure 3111; in the clamping state, the first clamping structure 211 is clamped with the second clamping structure 3111; in the non-clamping state, the first clamping structure 211 is separated from the second clamping structure 3111.

[0080] With the cooperation of the above-mentioned clamping structure, the clamping structure can clamp the active end of the trachea stably in the clamping state, the trachea is not easy to fall out, and the storage effect is better.

[0081] Optional, reference Figure 4 or Figure 5 One of the first clamping structure 211 and the second clamping structure 3111 is a slot or a hole, and the other of the first clamping structure 211 and the second clamping structure 3111 is a protruding structure or a shaft.

[0082] exist Figure 4 or Figure 5 The above-mentioned snap-in structure is realized by the cooperation of the groove and the protrusion structure, but those skilled in the art can understand that there are many other deformation methods that can realize the above-mentioned snap-in structure, which are not listed one by one in the present disclosure.

[0083] In some embodiments, reference Figure 3 and Figure 6 The first pushing portion 411 and / or the second pushing portion 412 has a first limiting structure 4112, and the main body 1 has a second limiting structure 12. The first limiting structure 4112 cooperates with the second limiting structure 12 to prevent the button structure 4 from escaping relative to the main body 1.

[0084] Based on the above arrangement, it can be ensured that the button structure will not fall off from the main body easily, thereby increasing the service life of the air pump.

[0085] Optional, reference Figure 3 and Figure 6 , one of the first limiting structure 4112 and the second limiting structure 12 is a groove, and the other is a protruding structure. Here, the aforementioned limiting structure is realized by the cooperation of the groove and the protruding structure. This implementation method has a simple structure, low cost, but high reliability. In addition, other implementation methods can be selected according to needs, such as the cooperation of the slide groove and the slider, etc., which will not be described in detail in the embodiments of the present disclosure.

[0086] In some embodiments, reference Figure 1-2 and Figure 4-5 The air pump further includes an ejection structure 5 , which is configured to press the active end 21 outward.

[0087] With the help of the ejection structure, the movable end of the air pipe can be automatically ejected when the clamping structure enters a non-clamping state, thereby simplifying the operation of the user.

[0088] Optional, reference Figure 4-5 The ejection structure 5 includes an ejection block 51 and a second elastic member 52. One end of the second elastic member 52 is fixed to the main body 1, and the other end is connected to the ejection block 51. The ejection block 51 is biased to press the movable end 21 when the clamping structure 3 clamps the movable end 21.

[0089] It should be noted that Figure 4 The middle clamping structure is in the clamping state. Figure 5 With the above arrangement, when the clamping structure enters the non-clamping state, the top block automatically lifts the movable end under the action of the second elastic member, so that the movable end is disengaged without the user having to press the button for a long time.

[0090] Optional, reference Figure 5 The second elastic member 52 is a spring. The spring is used to apply force to the top block, which has low cost and long service life.

[0091] In some embodiments, reference Figure 1 and Figure 2 The main body 1 has an installation position 11, and the clamping structure 3 is installed in the installation position 11. Based on the above arrangement, it can be ensured that the appearance of the air pump is high.

[0092] To sum up, the embodiments of the present disclosure provide an air pump, the clamping structure of the air pump can automatically clamp the movable end of the trachea, thereby effectively storing the movable end of the trachea; when the user needs to take out the movable end, the button structure can be pressed to make the clamping structure release the movable end of the trachea. At the same time, the ejection structure inside the air pump can automatically lift up the movable end of the trachea, thereby effectively simplifying the operation of the user taking out the movable end.

[0093] In the present disclosure, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.

[0094] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only.

[0095] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air pump, characterized in that: It comprises a main body (1), an air pipe (2), a clamping structure (3) and a button structure (4); The clamping structure (3) and the button structure (4) are both mounted on the main body (1), and the air pipe (2) has a movable end (21); The clamping structure (3) has a clamping state and a non-clamping state. In the clamping state, the clamping structure (3) clamps the movable end (21), and in the non-clamping state, the clamping structure (3) releases the movable end (21). When the button structure (4) is pressed, the clamping structure (3) is driven to switch from the clamping state to the non-clamping state.

2. The air pump according to claim 1, characterized in that: The clamping structure (3) comprises a first clamping member (31), a second clamping member (32) and a first elastic member (33); The first clamping member (31) and the second clamping member (32) are arranged opposite to each other, and the first elastic member (33) biases the first clamping member (31) and the second clamping member (32) to clamp the movable end (21).

3. The air pump according to claim 2, characterized in that: The first clamping member (31) comprises a first clamping portion (311) and a first movable portion (312) which are connected to each other, and the second clamping member (32) comprises a second clamping portion (321) and a second movable portion (322) which are connected to each other; The first clamping portion (311) and the second clamping portion (321) are opposite to each other and enclose a clamping space (x) for clamping the movable end (21); The first movable portion (312) is opposite to the second movable portion (322), and the first elastic member (33) applies force to the first movable portion (312) and the second movable portion (322) respectively, so that the first clamping portion (311) and the second clamping portion (321) are maintained in a clamping state.

4. The air pump according to claim 3, characterized in that: The clamping structure (3) further comprises a mounting shaft (34), the first elastic member (33) comprises a torsion spring, and the first movable portion (312), the second movable portion (322) and the first elastic member (33) are all sleeved on the mounting shaft (34); The first movable portion (312) and the first clamping portion (311) are located on the same side of the second movable portion (322) and the second clamping portion (321); The first free end (331) of the first elastic member (33) presses against a side of the first movable portion (312) close to the second movable portion (322), and the second free end (332) presses against a side of the second movable portion (322) close to the first movable portion (312).

5. The air pump according to claim 3, characterized in that: The button structure (4) comprises a button (41), an elastic arm (42) and a fixing portion (43); the button (41) comprises a first pushing portion (411) and a second pushing portion (412); The fixing portion (43) is fixedly connected to the main body (1), the elastic arm (42) is respectively connected to the fixing portion (43) and the button (41), and the elastic arm (42) biases the button (41) in a non-pressed state; When the button (41) is pressed to enter a pressed state, the first pushing portion (411) and the second pushing portion (412) respectively push the first movable portion (312) and the second movable portion (322) to move, so that the first clamping portion (311) and the second clamping portion (321) are switched to the non-clamping state.

6. The air pump according to claim 5, characterized in that: The first movable portion (312) and the second movable portion (322) respectively have a first movable inclined surface (3121) and a second movable inclined surface (3221); the first pushing portion (411) and the second pushing portion (412) respectively have a first pushing inclined surface (4111) and a second pushing inclined surface (4121); When the button (41) is pressed, the first push inclined surface (4111) and the second push inclined surface (4121) respectively contact the first movable inclined surface (3121) and the second movable inclined surface (3221) and slide relatively therewith.

7. The air pump according to claim 5, characterized in that: The button (41) comprises a pressing portion (413), the pressing portion (413) being connected to the first pushing portion (411) and the second pushing portion (412), and the pressing portion (413) protrudes relative to the main body (1) when the button (41) is in a non-pressed state.

8. The air pump according to claim 3, characterized in that: The outer wall of the movable end (21) has a first clamping structure (211), and the first clamping portion (311) and / or the second clamping portion (321) has a second clamping structure (3111); in the clamping state, the first clamping structure (211) is clamped with the second clamping structure (3111); in the non-clamping state, the first clamping structure (211) is separated from the second clamping structure (3111).

9. The air pump according to claim 8, characterized in that: One of the first clamping structure (211) and the second clamping structure (3111) is a slot or a hole, and the other of the first clamping structure (211) and the second clamping structure (3111) is a protruding structure or a shaft.

10. The air pump according to claim 5, characterized in that: The first pushing portion (411) and / or the second pushing portion (412) has a first limiting structure (4112), and the main body (1) has a second limiting structure (12), and the first limiting structure (4112) cooperates with the second limiting structure (12) to prevent the button structure (4) from escaping relative to the main body (1).

11. The air pump according to claim 10, characterized in that: One of the first limiting structure (4112) and the second limiting structure (12) is a groove, and the other is a protruding structure.

12. The air pump according to claim 1, characterized in that: It also includes an ejection structure (5), wherein the ejection structure (5) is configured to press the movable end (21) outward.

13. The air pump according to claim 12, characterized in that: The ejection structure (5) comprises an ejection block (51) and a second elastic member (52), wherein one end of the second elastic member (52) is fixed to the main body (1), and the other end is connected to the ejection block (51), and the ejection block (51) is biased to press the movable end (21) when the clamping structure (3) clamps the movable end (21).

14. The air pump according to claim 13, characterized in that: The second elastic member (52) is a spring.

15. The air pump according to claim 1, characterized in that: The main body (1) has a mounting position (11), and the clamping structure (3) is mounted in the mounting position (11).

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