Inflator with storage function

Abstract

The utility model discloses an inflator with a storage function, and aims to solve the problems that although the inflator in the prior art has the storage function, the size of the inflator is increased, and the transportation and storage cost of the inflator is increased. According to the technical scheme, the piston comprises a piston barrel and a piston rod, and a piston head matched with the piston barrel is arranged at one end of the piston rod; the end, away from the piston head, of the piston rod is sunken inwards to form a containing cavity, a sealing cover assembly is arranged at an opening of the containing cavity, and the needle head can be placed into the containing cavity or taken out of the containing cavity after the sealing cover assembly is detached. The storage cavity for storing the needle head is arranged in the piston rod, and the space in the piston rod is fully utilized, so that the needle head can be stored under the condition that the overall length of the inflator is not increased, the overall space utilization rate is improved, and the situation that the overall length of the inflator is increased due to the arrangement of the storage cavity for storing the needle head is prevented; and the cost of transporting and storing the inflator is increased.

Description

Technical Field

[0001] The present invention relates to the field of air pumps, and more specifically, it relates to a pump with a storage function. Background Art

[0002] In daily life, a pump is a very common inflation tool, which can inflate balloons, basketballs, volleyballs, bicycles or electric vehicles, etc. However, when inflating different items, air needles of different models need to be adapted. Since the air needles are small in size and there are many types of models, the air needles are easy to lose. Therefore, a pump with a storage function is needed to store the air needles to prevent them from being lost.

[0003] Chinese Patent Publication No. CN220815922U, publication date April 19, 2024, the invention is named a new type of pump, which stores the air needle by providing a placement hole for placing the air needle on the handle of the pump. Although the above structure can store the air needle, this method undoubtedly increases the overall length of the pump, increases the volume of transporting and storing the pump, increases the space required for transporting and storing the pump, and thus increases the cost of transporting and storing. Summary of the Invention

[0004] The present invention overcomes the problem that although the pump in the prior art has a storage function, its volume increases, resulting in an increase in the cost of transporting and storing the pump; a pump with a storage function is provided, in which the storage space is arranged inside the piston rod, and the air needle can be stored in the storage space of the piston rod, so as to make full use of the space inside the piston rod, improve the utilization rate of the overall internal space of the pump, and not increase the cost of transportation and storage.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: A pump with a storage function, including a piston cylinder and a piston rod, one end of the piston rod is provided with a piston head that cooperates with the piston cylinder; one end of the piston rod away from the piston head is recessed inward to form a storage cavity, and a sealing cover assembly is arranged at the opening of the storage cavity. By opening the sealing cover assembly, the needle can be put into the storage cavity or taken out of the storage cavity.

[0006] In the present utility model, the storage cavity for storing the needle is arranged inside the piston rod, and when the piston rod is in a non-use state, the piston rod is located inside the piston cylinder. That is to say, in the non-use state, both the piston rod and the storage cavity are located inside the piston cylinder. Therefore, the space inside the piston rod can be fully utilized, so that the needle can be stored without increasing the overall length of the pump, improving the overall space utilization rate, and preventing the overall length of the pump from being lengthened due to the setting of the storage cavity for storing the needle, thereby increasing the cost of transporting and storing the pump.

[0007] Preferably, the capping assembly includes a handle and a bottom cover; the needle can be taken out of the storage cavity by opening the bottom cover; the handle includes a handle sleeve sleeved around the outer periphery of the piston barrel and a connecting collar; the handle sleeve is slidably disposed around the outer periphery of the piston barrel, and the connecting collar is fixedly connected to the outer side wall of the piston rod; the bottom cover is detachably disposed at the end of the handle sleeve to block the storage cavity.

[0008] When using the air pump, the handle can be held by hand, and by pulling the handle, the piston rod can be driven to move along the piston barrel for pumping air. Moreover, when the piston rod moves within the piston barrel, the handle sleeve also slides on the outside of the piston barrel. Through the cooperation between the handle sleeve and the piston barrel, the handle sleeve can slide more stably on the outside of the piston barrel, and thus the piston rod can move more stably within the piston barrel.

[0009] Preferably, the connecting collar is snap-fitted to the outer side wall of the piston rod.

[0010] By means of snap-fitting, the assembly between the connecting collar and the piston rod is made more convenient.

[0011] Preferably, an end face convex ring protrudes outward from the end face of the handle sleeve away from the piston head, and the bottom cover is in threaded cooperation with the end face convex ring.

[0012] The internal thread of the bottom cover and the external thread of the end face convex ring cooperate with each other, so that the bottom cover and the end face of the handle sleeve are detachably fitted together.

[0013] Preferably, an outer sleeve is provided on the outer side of the piston barrel; a first air outlet hole is provided at the end of the outer sleeve away from the piston rod; the first air outlet hole is detachably connected with a first air outlet column.

[0014] The first air outlet column extends the air passage of the air outlet hole, facilitating the pumping of air at the end of the first air outlet column.

[0015] Preferably, a side wall through hole is provided on the side wall of the first air outlet column, and the side wall through hole is detachably connected with a barometer.

[0016] When the barometer needs to be used, the barometer can be installed in the side wall through hole, so that the air pressure can be monitored in real time when using the air pump.

[0017] Preferably, a first clamping groove is provided on the inner side wall of the outer sleeve, and a first ring groove is provided on the outer side wall of the piston barrel and is matched with the first clamping groove.

[0018] The outer sleeve is snap-fitted to the outer periphery of the piston barrel through the cooperation of the first snap ring and the first clamping groove.

[0019] Preferably, convex ribs are provided on the inner wall of the outer sleeve, and a limiting groove is provided on the side wall of the piston barrel and is matched with the convex ribs. The limiting groove and the convex ribs cooperate to prevent the outer sleeve from rotating circumferentially.

[0020] The limiting groove and the convex rib cooperate to further limit the piston cylinder and the outer sleeve, and can prevent the piston cylinder and the outer sleeve from rotating circumferentially around the axis when inflating.

[0021] Preferably, the first air outlet column is threadedly connected to the first air outlet hole.

[0022] So that the first air outlet column can be more conveniently and fixedly connected to the outer sleeve.

[0023] Preferably, a detachable extension air column is provided at one end of the first air outlet column away from the outer sleeve, and an internal thread for cooperating with a needle is provided at the end of the extension air column away from the first air outlet column.

[0024] The extension air column is provided to facilitate increasing the length of the first air outlet in specific occasions and make it more convenient to use the air pump in some occasions.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present utility model, the storage cavity for storing the needle is arranged inside the piston rod, and when the piston rod is in a non-use state, the piston rod is located inside the piston cylinder. That is to say, in the non-use state, both the piston rod and the storage cavity are located inside the piston cylinder. Therefore, the space inside the piston rod can be fully utilized, so that the needle can be stored without increasing the overall length of the air pump, improving the overall space utilization rate and preventing the cost of transporting and storing the air pump from increasing due to the lengthening of the overall length of the air pump. In addition, by providing the first air outlet column and the extension air column, the air pump can be freely assembled, and the first air outlet column and the extension air column can be removed during transportation, further reducing the transportation and storage costs. Description of the Drawings

[0026] Figure 1 is a perspective view of the overall structure of the present invention.

[0027] Figure 2 is a sectional view of the present invention.

[0028] Figure 3 is an exploded view of the present invention.

[0029] Figure 4 is Figure 3 a sectional view of the overall structure at an angle.

[0030] In the figure: 1. Piston cylinder, 11. First snap ring, 12. Inner partition, 121. Vent hole, 122. Abutting rib, 13. Vent convex ring, 14. Limiting partition, 141. Partition perforation, 142. Protrusion, 15. Check valve plate, 16. Threaded sleeve, 17. Guide ring;

[0031] 2. Piston rod, 21. Piston head, 211. First limiting ring, 212. Second limiting ring, 213. Limiting ring groove, 214. Piston ring, 215. Venting groove, 22. Storage cavity, 23. Second card slot;

[0032] 3. Handle, 31. Handle sleeve, 32. Connecting convex ring, 321. Second snap ring, 33. End face convex ring;

[0033] 4. Bottom cover;

[0034] 5. Outer sleeve, 51. First card slot, 52. First air outlet hole;

[0035] 6. First air outlet column, 61. Side wall perforation;

[0036] 7. Barometer;

[0037] 8. Extension air column. Specific embodiments

[0038] The technical solution of the present invention will be further specifically described below through specific embodiments in conjunction with the accompanying drawings:

[0039] Example 1: Refer to Figures 1 to 4 As shown, a pump with a storage function includes a piston cylinder 1 and a piston rod 2. One end of the piston rod 2 is provided with a piston head 21 that cooperates with the piston cylinder 1; one end of the piston rod 2 away from the piston head 21 is recessed inward to form a storage cavity 22. A sealing cover assembly is provided at the opening of the storage cavity 22. By opening the sealing cover assembly, the needle can be placed into the storage cavity 22 or taken out from the storage cavity 22.

[0040] In the present utility model, the storage cavity 22 for storing the needle is arranged inside the piston rod 2, and when the piston rod 2 is in a non-use state, the piston rod 2 is located inside the piston cylinder 1. That is to say, in the non-use state, both the piston rod 2 and the storage cavity 22 are located inside the piston cylinder 1. Therefore, the space inside the piston rod 2 can be fully utilized, so that without increasing the overall length of the pump, the needle can be stored, improving the overall space utilization rate, and preventing the overall length of the pump from being increased due to the setting of the storage cavity 22 for storing the needle, thereby increasing the cost of transporting and storing the pump.

[0041] Example 2: Refer to Figures 1 to 4 As shown, a pump with a storage function includes a piston cylinder 1 and a piston rod 2. One end of the piston rod 2 is provided with a piston head 21 that cooperates with the piston cylinder 1; one end of the piston rod 2 away from the piston head 21 is recessed inward to form a storage cavity 22. A sealing cover assembly is provided at the opening of the storage cavity 22. By opening the sealing cover assembly, the needle can be placed into the storage cavity 22 or taken out from the storage cavity 22.

[0042] The cover assembly includes a handle 3 and a bottom cover 4. The handle 3 includes a handle column sleeve 31 sleeved on the periphery of the piston cylinder 1 and a connecting convex ring 32; one end of the handle column sleeve 31 is provided with an opening, the handle column sleeve 31 is sleeved on one end of the piston cylinder 1, a gap is provided between the outer side wall of the handle column sleeve 31 and the piston cylinder 1, and the handle column sleeve 31 is slidably arranged on the periphery of the piston cylinder 1.

[0043] The connecting convex ring 32 is fixedly arranged on the inner side of one end of the handle column sleeve 31, and is fixedly connected with the outer side wall of the piston rod 2. Specifically, the inner side wall of the connecting convex ring 32 is fixedly connected with the outer side wall of the piston rod 2, and the connecting convex ring 32 is arranged on the outer side corresponding to the opening of the storage cavity 22. In this application, a second snap ring 321 is arranged on the inner side wall of the connecting convex ring 32, and a second slot 23 matched with the second snap ring 321 is arranged on the periphery of the piston rod 2, so that the handle 3 can be fixedly connected with the piston rod 2 through the cooperation of the second snap ring 321 and the second slot 23.

[0044] Therefore, when using the air pump, the handle 3 can be held by hand, and by pulling the handle 3, the piston rod 2 can be driven to move along the piston cylinder 1 to inflate. And when the piston rod 2 moves in the piston cylinder 1, the handle column sleeve 31 also slides on the outer side of the piston cylinder 1. Through the cooperation of the handle column sleeve 31 and the piston cylinder 1, the handle column sleeve 31 can slide more stably on the outer side of the piston cylinder 1, so that the piston rod 2 can also move more stably in the piston cylinder 1.

[0045] The bottom cover 4 is detachably arranged at the end of the handle column sleeve 31 and seals the storage cavity 22. The bottom cover 4 can be matched with the handle column sleeve 31 by a snap connection method to seal the opening of the storage cavity 22. In this application, an end face convex ring 33 protrudes outward from the end face of the handle column sleeve 31 far away from the piston head 21, and the bottom cover 4 is in threaded cooperation with the end face convex ring 33. Specifically, an external thread is arranged on the outer side wall of the end face convex ring 33, and an internal thread is arranged on the inner side wall of the bottom cover 4. The internal thread of the bottom cover 4 is matched with the external thread of the end face convex ring 33, so that the bottom cover 4 is detachably matched with the end face of the handle column sleeve 31.

[0046] In the present utility model, a storage cavity 22 for storing a needle is provided inside the piston rod 2. When the piston rod 2 is in a non-use state, the piston rod 2 is located inside the piston cylinder 1. That is to say, in the non-use state, both the piston rod 2 and the storage cavity 22 are located inside the piston cylinder 1. Therefore, the space inside the piston rod 2 can be fully utilized, so that the needle can be stored without increasing the overall length of the air pump, improving the overall space utilization rate and preventing the cost of transporting and storing the air pump from increasing due to the increase in the overall length of the air pump. In addition, by providing the first air outlet column 6 and the extension air column 8, the air pump can be freely assembled, and the first air outlet column 6 and the extension air column 8 can be removed during transportation, further reducing the transportation and storage costs.

[0047] Example 2: Refer to Figures 1 to 4 As shown, an air pump with a storage function includes a piston cylinder 1 and a piston rod 2. One end of the piston rod 2 is provided with a piston head 21 that cooperates with the piston cylinder 1; one end of the piston rod 2 away from the piston head 21 is recessed inward to form a storage cavity 22. A cover assembly is provided at the opening of the storage cavity 22. By opening the cover assembly, the needle can be placed into the storage cavity 22 or taken out from the storage cavity 22.

[0048] The cover assembly includes a handle 3 and a bottom cover 4. The handle 3 includes a handle column sleeve 31 sleeved on the outer periphery of the piston cylinder 1 and a connecting convex ring 32; one end of the handle column sleeve 31 is provided with an opening. The handle column sleeve 31 is sleeved on one end of the piston cylinder 1. There is a gap between the handle column sleeve 31 and the outer side wall of the piston cylinder 1, and the handle column sleeve 31 is slidably arranged on the outer periphery of the piston cylinder 1.

[0049] The connecting convex ring 32 is fixedly arranged inside one end of the handle column sleeve 31 and is fixedly connected to the outer side wall of the piston rod 2. Specifically, the inner side wall of the connecting convex ring 32 and the outer side wall of the piston rod 2 are fixedly connected, and the connecting convex ring 32 is arranged on the outer side corresponding to the opening of the storage cavity 22. In this application, a second snap ring 321 is provided on the inner side wall of the connecting convex ring 32, and a second card slot 23 that cooperates with the second snap ring 321 is provided on the outer periphery of the piston rod 2, so that the handle 3 can be fixedly connected to the piston rod 2 through the cooperation of the second snap ring 321 and the second card slot 23.

[0050] Therefore, when using the air pump, the handle 3 can be held by hand, and by pulling the handle 3, the piston rod 2 can be driven to move along the piston cylinder 1 to inflate. And when the piston rod 2 moves inside the piston cylinder 1, the handle column sleeve 31 also slides on the outer side of the piston cylinder 1. Through the cooperation of the handle column sleeve 31 and the piston cylinder 1, the handle column sleeve 31 can slide more stably on the outer side of the piston cylinder 1, and thus the piston rod 2 can move more stably inside the piston cylinder 1.

[0051] The bottom cover 4 is detachably arranged at the end of the handle cylinder sleeve 31 and seals the storage cavity 22. The bottom cover 4 can be engaged with the handle cylinder sleeve 31 by a snap-fit manner to seal the opening of the storage cavity 22. In this application, an end face convex ring 33 is protrudingly arranged outward on the end face of the handle cylinder sleeve 31 away from the piston head 21, and the bottom cover 4 is in threaded fit with the end face convex ring 33. Specifically, an external thread is arranged on the outer side wall of the end face convex ring 33, and an internal thread is arranged on the inner side wall of the bottom cover 4. The internal thread of the bottom cover 4 and the external thread of the end face convex ring 33 are matched, so that the bottom cover 4 is detachably fitted with the end face of the handle cylinder sleeve 31.

[0052] An outer sleeve 5 is arranged outside the piston cylinder 1, and the outer sleeve 5 is sleeved around the piston cylinder 1. One end of the outer sleeve 5 is provided with an opening, and the piston cylinder 1 is fixedly arranged in the opening.

[0053] When the air pump is in a non-working state, the outer sleeve 5 and the handle cylinder sleeve 31 are matched and sleeved at both ends of the piston cylinder 1 respectively. The difference is that the handle cylinder sleeve 31 is slidably sleeved at one end of the piston cylinder 1, while the outer sleeve 5 is fixedly arranged at the other end of the piston cylinder 1.

[0054] In one embodiment, a first clamping groove 51 is arranged on the inner side wall of the outer sleeve 5, and a first clamping ring 11 matched with the first clamping groove 51 is arranged on the outer side wall of the piston cylinder 1. The outer sleeve 5 is clamped around the piston cylinder 1 by the cooperation of the first clamping ring 11 and the first clamping groove 51. In addition, convex ribs are arranged on the inner wall of the outer sleeve, and limiting grooves matched with the convex ribs are arranged on the side wall of the piston cylinder. The limiting grooves and the convex ribs cooperate to prevent the outer sleeve from rotating circumferentially.

[0055] The cooperation of the limiting grooves and the convex ribs plays a further limiting role between the piston cylinder and the outer sleeve, and can prevent the piston cylinder and the outer sleeve from rotating circumferentially around the axis during air pumping.

[0056] A first air outlet hole 52 is arranged at the end of the outer sleeve 5 away from the piston rod 2; the first air outlet hole 52 is connected with a first air outlet column 6, and a side wall through hole 61 is arranged on the side wall of the first air outlet column 6. The side wall through hole 61 is detachably connected with the barometer 7. Internal threads are arranged on the side wall through hole 61, and external threads matched with the internal threads on the side wall through hole 61 are arranged at the inlet of the barometer 7. Thus, when the barometer 7 needs to be used, the barometer 7 can be installed on the side wall through hole 61, so that the air pressure can be monitored in real time when the air pump is used.

[0057] One end of the first air outlet column 6 away from the outer sleeve 5 is detachably provided with an extended air column 8, and the extended air column 8 is threadedly connected to the first air outlet column 6. The end of the extended air column 8 away from the first air outlet column 6 is provided with an internal thread for fitting with a needle, which is convenient for connecting with an air needle. The setting of the extended air column 8 facilitates increasing the length of the first air outlet in specific occasions and enables the air pump to be used more conveniently in certain situations.

[0058] Inside the piston cylinder 1 and at one end away from the storage cavity 22, an inner partition 12 is fixedly provided. The inner partition 12 is penetrated with ventilation holes 121; on the end face of the inner partition 12 on the side away from the piston rod 2, a ventilation convex ring 13 is provided. The ventilation convex ring 13 is arranged in the circumferential direction of the ventilation holes 121, and the inner diameter of the ventilation convex ring 13 is greater than the diameter of the ventilation convex ring 13; a limiting partition 14 is arranged inside the ventilation convex ring 13. A partition through hole 141 is provided at the center of the limiting partition 14, and a one-way valve cavity is formed by the cooperation between the limiting partition 14 and the inner partition 12. A number of protrusions 142 are arranged in the circumferential direction on the side of the limiting partition 14 close to the inner partition 12. A one-way valve piece 15 is arranged in the one-way valve cavity.

[0059] A threaded sleeve 16 is fixedly arranged inside the ventilation convex ring 13, and internal threads are arranged on the inner side of the threaded sleeve 16. The threaded sleeve 16 is arranged on the side of the limiting partition 14 away from the inner partition 12. The end of the first air outlet column 6 is threadedly connected to the threaded sleeve 16.

[0060] On the end face of the inner partition 12 on the other side away from the ventilation convex ring 13, abutting rib plates 122 are arranged in its circumferential direction. When the piston rod 2 is completely located inside the piston sleeve, the end of the piston head 21 abuts against the abutting rib plates 122. The abutting rib plates 122 can play a role in limiting the piston head 21. At the same time, since the abutting rib plates 122 connect the inner partition 12 and the side wall of the piston cylinder 1, the overall strength of the piston cylinder 1 can be improved.

[0061] The piston head 21 in this application includes a first limiting ring 211 and a second limiting ring 212 arranged at the end of the piston rod 2. A limiting ring groove 213 is formed by the cooperation between the first limiting ring 211 and the second limiting ring 212. A piston ring 214 is arranged in the limiting ring groove 213, and the diameter of the piston ring 214 is smaller than the distance between the first limiting ring 211 and the second limiting ring 212. The first limiting ring 211 is arranged at the edge of the end of the piston rod 2, and the second limiting ring 212 is arranged on the outer side wall of the piston rod 2. At the bottom of the limiting ring groove 213, that is, on the outer side wall of the piston rod 2, a ventilation groove 215 is arranged along the axial direction of the piston rod 2. The ventilation groove 215 is arranged in the circumferential direction of the piston rod 2, and the ventilation groove 215 penetrates through the first limiting ring 211.

[0062] A guide ring 17 is provided on the inner side of the piston cylinder 1 on the side far from the piston head 21. The guide ring 17 abuts against the outer side wall of the piston rod 2, and a gap is provided between the inner side wall of the guide ring 17 and the piston rod 2. The guide ring 17 and the piston head 21 cooperate to enable the piston rod 2 to move stably within the piston cylinder 1. Moreover, the guide ring 17 can play a role in limiting the piston head 21 to prevent the piston head 21 from detaching from the piston cylinder 1 when the air pump is in use.

[0063] The working principle of this application is as follows: As Figure 1 or Figure 2 shown, the piston rod 2 in this application is in a non-use state. At this time, the piston rod 2 is located within the piston sleeve, and the handle column sleeve 31 and the outer sleeve 5 are provided at both ends of the piston cylinder 1, and there is a certain gap between the handle column sleeve 31 and the outer sleeve 5.

[0064] When in use, hold the handle 3 with your hand and pull the piston rod 2 outwards. At this time, the air will pass through the gap between the handle column sleeve 31 and the piston cylinder 1, the gap between the guide ring 17 and the outer side of the piston rod 2, the gap between the second limiting ring 212 and the piston cylinder 1, and enter the space between the piston head 21 and the inner partition 12 through the ventilation groove 215; at this time, the one-way valve piece 15 is affected by the negative pressure inside the piston cylinder 1, and the one-way valve piece 15 fits on the inner partition 12, thereby blocking the ventilation hole 121. And because the piston rod 2 is pulled outwards, the piston ring 214 will abut against the first limiting ring 211 under the friction force of the inner side wall of the piston cylinder 1, so a gap is formed between the piston ring 214 and the second limiting ring 212, enabling air to enter the cavity between the piston head 21 and the inner partition 12 through the ventilation groove 215. The above process is the air intake process.

[0065] When inflation is required, hold the handle 3 with your hand and push the piston rod 2 inwards. At this time, the piston ring 214 will abut against the second limiting ring 212 under the friction force of the inner side wall of the piston cylinder 1, so that the piston ring 214, the second limiting ring 212 and the inner side wall of the piston cylinder 1 cooperate to be sealed. At this time, the air inside the piston cylinder 1 acts on the one-way valve piece 15, causing the one-way valve piece 15 to abut against the protrusion 142, enabling the air inside the piston cylinder 1 to enter the first air outlet column 6 from the ventilation hole 121, the partition perforation 141, and the threaded sleeve 16 and then be discharged from the air needle. The above process is the exhaust process.

[0066] In the present utility model, a storage cavity 22 for storing a needle is arranged inside a piston rod 2, and when the piston rod 2 is in a non-use state, the piston rod 2 is located inside a piston cylinder 1. That is to say, in the non-use state, both the piston rod 2 and the storage cavity 22 are located inside the piston cylinder 1. Therefore, the space inside the piston rod 2 can be fully utilized, so that the needle can be stored without increasing the overall length of the air pump, improving the overall space utilization rate and preventing the cost of transporting and storing the air pump from increasing due to the increase in the overall length of the air pump. In addition, by providing a first air outlet column 6 and an extension air column 8, the air pump can be freely assembled, and the first air outlet column 6 and the extension air column 8 can be removed during transportation, further reducing the transportation and storage costs.

[0067] The above-described embodiments are only preferred solutions of the present invention, and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions described in the claims.

Claims

1. A pump with a storage function, characterized in that It includes a piston cylinder and a piston rod. One end of the piston rod is provided with a piston head that cooperates with the piston cylinder; one end of the piston rod away from the piston head is recessed inward to form a storage cavity, and a cover assembly is provided at the opening of the storage cavity. By opening the cover assembly, the needle can be placed into the storage cavity or taken out from the storage cavity.

2. The air pump with a storage function according to claim 1, characterized in that, The cover assembly includes a handle and a bottom cover. By opening the bottom cover, the needle can be taken out from the storage cavity; the handle includes a handle column sleeve sleeved on the outer periphery of the piston cylinder and a connecting convex ring; the handle column sleeve is slidably arranged on the outer periphery of the piston cylinder, and the connecting convex ring is fixedly connected to the outer side wall of the piston rod; the bottom cover is detachably arranged at the end of the handle column sleeve to block the storage cavity.

3. The air pump with a storage function according to claim 2, wherein, The connecting convex ring is snap-fitted on the outer side wall of the piston rod.

4. The air pump with a storage function according to claim 2, characterized in that, The end surface of the handle column sleeve away from the piston head protrudes outward to be provided with an end surface convex ring, and the bottom cover is in threaded cooperation with the end surface convex ring.

5. The air pump with a storage function according to any one of claims 1 to 4, characterized in that, An outer sleeve is arranged on the outer side of the piston cylinder; a first air outlet hole is arranged at the end of the outer sleeve away from the piston rod; the first air outlet hole is detachably connected with a first air outlet column.

6. The air pump with a storage function according to claim 5, characterized in that, Side wall perforations are arranged on the side wall of the first air outlet column, and the side wall perforations are detachably connected with a barometer.

7. The air pump with a storage function according to claim 5, characterized in that, A first clamping groove is arranged on the inner side wall of the outer sleeve, and a first annular groove that cooperates with the first clamping groove is arranged on the outer side wall of the piston cylinder.

8. The air pump with a storage function according to claim 7, wherein, Convex ribs are arranged on the inner wall of the outer sleeve, and a limiting groove that cooperates with the convex ribs is arranged on the side wall of the piston cylinder. The cooperation of the limiting groove and the convex ribs prevents the outer sleeve from rotating circumferentially.

9. The air pump with a storage function according to claim 5, characterized in that, The first air outlet column is in threaded connection with the first air outlet hole.

10. The air pump with a storage function according to claim 5, characterized in that, A detachable extension air column is arranged at the end of the first air outlet column away from the outer sleeve, and an internal thread that cooperates with the needle is arranged at the end of the extension air column away from the first air outlet column.

Images