Screw cap type inflating and deflating pump

Abstract

The utility model aims to provide a screw cap type inflating and deflating pump which comprises a pump shell, a blast assembly and a screw cap, the pump shell comprises a bottom shell and a top shell, a pump cavity is formed in the bottom shell, a first air hole is formed in the bottom of the bottom shell, and the top shell is buckled on the bottom shell, so that an air bin is defined between the bottom shell and the top shell and is communicated with the pump cavity; a second air hole is formed in the top of the top shell, the air blowing assembly comprises an air blowing driving part, an air wheel and a control switch, the air blowing driving part is arranged on the inner side wall of the pump cavity, the air wheel is arranged on an output shaft of the air blowing driving part and located in the air bin, and the control switch is arranged at the top of the top shell and electrically connected with the air blowing driving part. The screw cap is connected to the top of the top shell in a threaded mode, when the screw cap is screwed into the top shell, the screw cap presses the control switch, and when the screw cap is screwed out of the top shell, the screw cap is far away from the control switch.

Description

Technical Field

[0001] The utility model relates to the technical field of air pumps, in particular to a screw - cap type inflating and deflating air pump. Background Art

[0002] An inflating and deflating air pump refers to a device used for inflating and deflating inflatable products.

[0003] However, for existing inflating and deflating air pumps, in order to have both inflating and deflating functions, the structural design has become more and more complex. On the one hand, too many components will increase the manufacturing cost, and on the other hand, it will increase the probability of failure. Moreover, for some small inflatable products such as backpacks, a structurally complex inflating and deflating air pump means a larger volume and weight, which is not conducive to being installed on small inflatable products. Therefore, in order to simplify the structure of the inflating and deflating air pump, reduce the manufacturing cost while improving the service life and being applicable to small inflatable products, the screw - cap type inflating and deflating air pump of this application is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a screw - cap type inflating and deflating air pump with a simple structure, convenient operation, which can reduce the manufacturing cost while being reliable in use and applicable to small inflatable products.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A screw - cap type inflating and deflating air pump, comprising:

[0007] A pump housing, the pump housing includes a bottom shell and a top shell. A pump cavity is formed in the bottom shell, and a first air hole is formed at the bottom of the bottom shell. The top shell is buckled on the bottom shell so that an air chamber is formed between the bottom shell and the top shell, and the air chamber is communicated with the pump cavity. A second air hole is formed at the top of the top shell;

[0008] A blowing assembly, the blowing assembly includes a blowing driving member, a wind wheel and a control switch. The blowing driving member is arranged on the inner side wall of the pump cavity, the wind wheel is arranged on the output shaft of the blowing driving member, and the wind wheel is located in the air chamber. The control switch is arranged on the top of the top shell and is electrically connected to the blowing driving member; and

[0009] A screw cap, the screw cap is screwed on the top of the top shell. When the screw cap is screwed into the top shell, the screw cap presses the control switch. When the screw cap is screwed out of the top shell, the screw cap is away from the control switch.

[0010] Optionally, the top shell includes a housing, a rotating ring, and a top support block. The rotating ring is disposed on one side surface of the housing. The top support block is disposed on the housing and is located inside the rotating ring. The second air hole is located on the housing. The rotating cover is screwed to the rotating ring.

[0011] Optionally, the top support block includes a top block and a plurality of support columns. The support columns are circumferentially and spacedly disposed around the second air hole, and one end of each support column away from the housing is connected to the top block. The control switch is disposed inside the top block.

[0012] Optionally, the control switch includes a circuit board, a button, and a charging socket. The circuit board is disposed on one side surface of the top block close to the second air hole. The button is disposed on the circuit board, and the circuit board passes through the top block to extend out of the top block. The charging socket is disposed on the circuit board.

[0013] Optionally, the air blowing driving member includes an air blowing motor and a battery. The air blowing motor and the battery are both disposed on the inner side wall of the pump chamber, and the air blowing motor and the battery are both electrically connected to the circuit board.

[0014] Optionally, the bottom shell includes an outer shell and a bottom cover. The bottom cover is fastened to one end of the outer shell away from the top shell, so that the bottom cover and the outer shell jointly enclose the pump chamber. The first air hole is located on the bottom cover.

[0015] Optionally, a soft rubber ring is further disposed on the outer peripheral wall of the housing.

[0016] Optionally, a flexible connection strip is rotatably disposed on the housing. One end of the flexible connection strip away from the housing is rotatably connected to the rotating cover.

[0017] Optionally, two first air holes, two air storage chambers, two pump chambers, and two second air holes are provided. One of the second air holes, one of the air storage chambers, one of the pump chambers, and one of the first air holes are sequentially communicated. The other second air hole, the other pump chamber, the other air storage chamber, and the other first air hole are sequentially communicated.

[0018] Optionally, two air blowing driving members are provided. The two air blowing driving members are respectively disposed in the two pump chambers. Two air wheels are provided. The two air wheels are respectively disposed on the output shafts of the two air blowing driving members, and the two air wheels are respectively located in the two air storage chambers.

[0019] Compared with the prior art, the present utility model has at least the following advantages:

[0020] The screw-cap type air charging and discharging pump of the present utility model includes a pump housing, a blower assembly and a screw cap. The pump housing includes a bottom shell and a top shell. A pump chamber is provided in the bottom shell, and a first air hole is provided at the bottom of the bottom shell. The top shell is buckled on the bottom shell so that an air chamber is formed between the bottom shell and the top shell, and the air chamber is communicated with the pump chamber. A second air hole is provided at the top of the top shell. The blower assembly includes a blower driving member, a wind wheel and a control switch. The blower driving member is arranged on the inner side wall of the pump chamber, the wind wheel is arranged on the output shaft of the blower driving member, and the wind wheel is located in the air chamber. The control switch is arranged on the top of the top shell and is electrically connected to the blower driving member. The screw cap is screwed on the top of the top shell. When the screw cap is screwed into the top shell, the screw cap presses the control switch. When the screw cap is screwed out of the top shell, the screw cap is away from the control switch. Thus, the screw-cap type air charging and discharging pump of the present application has a simple structure and is convenient to operate. Because the parts are simple and few, the manufacturing cost can be reduced, and the failure rate during use is also low. Therefore, it can be reliable and practical. Moreover, because there are few parts, it is more compact and can be applied to small inflatable products such as backpacks. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 is a schematic structural diagram of the screw-cap type air charging and discharging pump according to an embodiment of the present utility model;

[0023] Figure 2 is Figure 1 the exploded structural diagram of the screw-cap type air charging and discharging pump shown;

[0024] Figure 3 is Figure 1 the sectional structural diagram of the screw-cap type air charging and discharging pump shown;

[0025] Figure 4 is a schematic structural diagram of the top shell according to an embodiment of the present utility model;

[0026] Figure 5 is a schematic structural diagram of the screw-cap type air charging and discharging pump according to another embodiment of the present utility model;

[0027] Figure 6 is Figure 5 the structural diagram of another angle of the screw-cap type air charging and discharging pump shown;

[0028] Figure 7 is Figure 5Schematic cross-sectional structure diagram of the screw-cap type air charging and discharging pump shown;

[0029] Explanation of reference numerals:

[0030] 10. Screw-cap type air charging and discharging pump; 100. Pump housing; 200. Blowing assembly; 300. Screw cap; 110. Bottom shell; 120. Top shell; 111. Pump chamber; 1131. First air hole; 130. Air chamber; 1211. Second air hole; 210. Blowing driving member; 220. Wind wheel; 230. Control switch; 121. Housing; 122. Swivel ring; 123. Top support block; 1231. Top block; 1232. Support column; 231. Circuit board; 232. Button; 233. Charging socket; 211. Blowing motor; 212. Battery; 112. Outer shell; 113. Bottom cover; 124. Soft rubber ring; 140. Flexible connection strip; 400. Sealing ring. Detailed implementation manners

[0031] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings.

[0032] As Figures 1 to 4 shown, a screw-cap type air charging and discharging pump 10 includes a pump housing 100, a blowing assembly 200 and a screw cap 300. The pump housing 100 includes a bottom shell 110 and a top shell 120. A pump chamber 111 is formed inside the bottom shell 110. A first air hole 1131 is formed at the bottom of the bottom shell 110. The top shell 120 is buckled on the bottom shell 110 so that an air chamber 130 is formed between the bottom shell 110 and the top shell 120, and the air chamber 130 is communicated with the pump chamber 111. A second air hole 1211 is formed at the top of the top shell 120. The blowing assembly 200 includes a blowing driving member 210, a wind wheel 220 and a control switch 230. The blowing driving member 210 is disposed on the inner side wall of the pump chamber 111. The wind wheel 220 is disposed on the output shaft of the blowing driving member 210, and the wind wheel 220 is located in the air chamber 130. The control switch 230 is disposed on the top of the top shell 120, and the control switch 230 is electrically connected to the blowing driving member 210. The screw cap 300 is screwed on the top of the top shell 120. When the screw cap 300 is screwed into the top shell 120, the screw cap 300 presses the control switch 230. When the screw cap 300 is screwed out of the top shell 120, the screw cap 300 is away from the control switch 230.

[0033] It should be noted that when the pump housing 100 is used to be installed on small inflatable products such as backpacks, the bottom housing 110 is located inside the inflatable product, and the top housing 120 faces the outside. The first air hole 1131 is communicated with the inflatable product, and the second air hole 1211 is communicated with the outside. The first air hole 1131, the pump chamber 111, the air storage chamber 130, and the second air hole 1211 are communicated in sequence. In this way, when the rotary cover 300 is screwed into the top housing 120, the rotary cover 300 will press the control switch 230, and at this time, the air blowing driving member 210 is in a stopped state. When the rotary cover 300 is screwed out from the top housing 120, the rotary cover 300 is away from the control switch 230. Therefore, the air blowing driving member 210 starts to drive the wind wheel 220 to rotate. As the wind wheel 220 rotates, the outside air enters the air storage chamber 130 through the second air hole 1211, then enters the pump chamber 111, and finally enters the inflatable product through the first air hole 1131. In this way, the inflatable product is inflated. When it is necessary to deflate the inflatable product, only need to press the inflatable product, and the gas in the inflatable product will flow out through the first air hole 1131, the pump chamber 111, the air storage chamber 130, and the second air hole 1211 in sequence. Further, when the rotary cover 300 is screwed out from the top housing 120, the control switch 230 is released. At this time, the air blowing driving member 210 is in a starting state. At this time, as long as the user manually presses the control switch 230, the air blowing driving member 210 can be repeatedly changed between the stopped state and the starting state. When the rotary cover 300 is screwed into the top housing 120, the control switch 230 is pressed, and the air blowing driving member 210 is stably in the stopped state. In this way, the rotary cover type inflating and deflating pump 10 of the present application has a simple structure and is convenient to operate. Because the parts are simple and few, the manufacturing cost can be reduced, and the failure rate during use is also low. Therefore, it can be reliably used, and because the parts are few, it is more compact and can be applied to small inflatable products such as backpacks.

[0034] As Figure 3 and Figure 4 shown, in an embodiment, the top housing 120 includes a housing 121, a rotary ring 122 and a top support block 123. The rotary ring 122 is arranged on one side surface of the housing 121. The top support block 123 is arranged on the housing 121, and the top support block 123 is located inside the rotary ring 122. The second air hole 1211 is located on the housing 121. The rotary cover 300 is screwed to the rotary ring 122.

[0035] It should be noted that the housing 121, the swivel ring 122 and the top support block 123 are of an integrally formed structure. The swivel ring 122 is located on one side surface of the housing 121. The second air hole 1211 is located on the housing 121 and is within the swivel ring 122. The top support block 123 is also within the swivel ring 122 and is above the second air hole 1211. The housing 121 is snap-fitted onto the bottom case 110 so that the bottom case 110 and the housing 121 jointly form the air storage chamber 130. Further, an external thread is provided on the outer side wall of the swivel ring 122, and an internal thread is provided within the rotary cover 300. Thus, the rotary cover 300 can be screwed onto the swivel ring 122.

[0036] As Figure 4 shown, in one embodiment, the top support block 123 includes a top block 1231 and a plurality of support columns 1232. The support columns 1232 are circumferentially and spaced apart around the second air hole 1211, and one end of each support column 1232 away from the housing 121 is connected to the top block 1231. The control switch 230 is disposed within the top block 1231.

[0037] It should be noted that the top block 1231 is lifted by the support columns 1232 to be in a suspended state, so that gas can flow through the gap between the second air hole 1211 and the support columns 1232. Further, the control switch 230 is installed within the top block 1231 to ensure that when the rotary cover 300 is screwed into the swivel ring 122, the rotary cover 300 can press the control switch 230.

[0038] As Figure 3 shown, in one embodiment, the control switch 230 includes a circuit board 231, a button 232 and a charging socket 233. The circuit board 231 is disposed on one side surface of the top block 1231 close to the second air hole 1211. The button 232 is disposed on the circuit board 231, and the circuit board 231 passes through the top block 1231 to extend from the top block 1231. The charging socket 233 is disposed on the circuit board 231.

[0039] It should be noted that the circuit board 231 is fixedly installed on the top block 1231, and the button 232 extends from the top surface of the top block 1231. Thus, when the rotary cover 300 is screwed into the swivel ring 122, the rotary cover 300 can press the button 232, thereby stopping the air blowing driving member 210. The air blowing driving member 210 can be powered through the charging socket 233. In one embodiment, the charging socket 233 is a USB socket.

[0040] As Figure 3 shown, in one embodiment, the air blowing driving member 210 includes an air blowing motor 211 and a battery 212. The air blowing motor 211 and the battery 212 are both disposed on the inner side wall of the pump chamber 111, and both the air blowing motor 211 and the battery 212 are electrically connected to the circuit board 231.

[0041] It should be noted that the wind wheel 220 is installed on the output shaft of the blower motor 211. In this way, the wind wheel 220 is continuously driven to rotate by the blower motor 211. The battery 212 is installed on the inner side wall of the pump chamber 111, and the battery 212 is electrically connected to the circuit board 231 through a wire.

[0042] As Figure 2 and Figure 3 shown, in one embodiment, the bottom case 110 includes an outer shell 112 and a bottom cover 113. The bottom cover 113 is fastened to one end of the outer shell 112 away from the top case 120, so that the bottom cover 113 and the outer shell 112 together enclose the pump chamber 111, and the first air hole 1131 is located on the bottom cover 113.

[0043] It should be noted that the bottom case 110 is configured as a structure in which the outer shell 112 and the bottom cover 113 are assembled and installed, which facilitates the installation of the blower motor 211 and the battery 212 in the pump chamber 111.

[0044] As Figure 3 shown, in one embodiment, a soft rubber ring 124 is further provided on the outer peripheral wall of the housing 121. For example, the soft rubber ring 124 is made of silica gel. Further, the soft rubber ring 124 and the housing 121 are integrally injection-molded by an injection mold. In this way, the structural strength between the soft rubber ring 124 and the housing 121 can be ensured, and at the same time, it is convenient to connect and fix the soft rubber ring 124 to the inflatable product.

[0045] As Figure 1 shown, in one embodiment, a flexible connection strip 140 is rotatably provided on the housing 121, and one end of the flexible connection strip 140 away from the housing 121 is rotatably connected to the screw cap 300.

[0046] It should be noted that, for example, sleeves are respectively provided at both ends of the flexible connection strip 140. By respectively sleeving the two sleeves at the positions of the screw cap 300 and the rotating ring 122 close to the housing 121, the screw cap 300 can be connected to the top case 120, and the screw cap 300 can be screwed into the top case 120 or screwed out of the top case 120 without hindrance.

[0047] As Figure 3 shown, in one embodiment, a sealing ring 400 is provided on the inner side wall of the screw cap 300. When the screw cap 300 is screwed into the rotating ring 122, the sealing ring 400 abuts against the rotating ring 122. In this way, it is ensured that the screw cap 300 reliably seals the second air hole 1211.

[0048] As Figures 5 to 7As shown, in one embodiment, two first air holes 1131, an air chamber 130, two pump chambers 111, and two second air holes 1211 are provided. One of the second air holes 1211, one of the air chambers 130, one of the pump chambers 111, and one of the first air holes 1131 are connected in sequence, and the other second air hole 1211, the other pump chamber 111, the other air chamber 130, and the other first air hole 1131 are connected in sequence.

[0049] It should be noted that in this embodiment, two first air holes 1131, an air chamber 130, two pump chambers 111, and two second air holes 1211 are provided, so as to form two independent ventilation ducts in the pump housing 100. One of the two ventilation ducts is used to fill gas into the inflatable product, and the other of the two ventilation ducts is used to extract gas from the inflatable product. In this way, the functions of electric inflation and electric air extraction are realized, and the inflatable product can be quickly inflated and deflated. It should be noted that both of the two first air holes 1131 are located on the bottom cover 113, and both of the two second air holes 1211 are located on the housing 121. Therefore, one of the pump chambers 111 is set to be connected to the first air hole 1131, and the corresponding air chamber 130 is connected to the second air hole 1211. In this way, the gas flows through the second air hole 1211, the air chamber 130, the pump chamber 111, and the first air hole 1131 in sequence to inflate the inflatable product. The other pump chamber 111 is set to be connected to the second air hole 1211, and the corresponding air chamber 130 is connected to the first air hole 1131. In this way, the gas flows through the first air hole 1131, the air chamber 130, the pump chamber 111, and the second air hole 1211 in sequence to inflate the inflatable product.

[0050] Furthermore, as Figures 5 to 7 shown, in one embodiment, two air blowing driving members 210 are provided. The two air blowing driving members 210 are respectively arranged in the two pump chambers 111. Two air wheels 220 are provided. The two air wheels 220 are respectively arranged on the output shafts of the two air blowing driving members 210, and the two air wheels 220 are respectively located in the two air chambers 130.

[0051] In this way, it is ensured that the gas can smoothly flow from the air chamber 130 into the pump chamber 111. Since the two air blowing driving members 210 are in two opposite directions in the air duct, one of the air ducts is an inflation air duct and the other air duct is an air extraction air duct, so that the rotary cover type inflator / deflator 10 has the function of electric inflation and deflation.

[0052] Furthermore, as Figures 5 to 7As shown, in one embodiment, there are also two rotating rings 122, such that the two second air holes 1211 are respectively located within the two rotating rings 122. There are also two top support blocks 123, and the two top support blocks 123 are respectively located within the two rotating rings 122. There are also two control switches 230, and the two control switches 230 are respectively installed within the two top support blocks 123, and the two control switches 230 are respectively electrically connected to the two air blowing driving members 210, such that the two control switches 230 can respectively control the start and stop of the two air blowing driving members 210. There are also two rotary caps 300, and the two rotary caps 300 are used to be respectively screwed onto the two rotating rings 122. Further, in one embodiment, the air blowing motors 211 in the two air blowing driving members 210 can share a single battery 212.

[0053] The above-described embodiments merely illustrate several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. Among them, the installation / fixing / setting in the present utility model, unless otherwise specifically defined, can be understood to include but not limited to locking and fixing by using screws / screws, welding. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A screw-cap type air charging and discharging pump, characterized in that, Comprising: A pump housing, the pump housing includes a bottom shell and a top shell, a pump chamber is formed in the bottom shell, a first air hole is formed in the bottom of the bottom shell, the top shell is buckled on the bottom shell, so that an air storage chamber is formed between the bottom shell and the top shell, and the air storage chamber is communicated with the pump chamber, and a second air hole is formed in the top of the top shell; A blowing assembly, the blowing assembly includes a blowing driving member, a wind wheel and a control switch, the blowing driving member is arranged on the inner side wall of the pump chamber, the wind wheel is arranged on the output shaft of the blowing driving member, and the wind wheel is located in the air storage chamber, the control switch is arranged on the top of the top shell, and the control switch is electrically connected with the blowing driving member; And A rotary cover, the rotary cover is screwed on the top of the top shell, when the rotary cover is screwed into the top shell, the rotary cover presses the control switch, and when the rotary cover is screwed out of the top shell, the rotary cover is away from the control switch.

2. The screw cap type air charging and discharging pump according to claim 1, wherein The top shell includes a shell body, a rotary ring and a top support block, the rotary ring is arranged on one side surface of the shell body, the top support block is arranged on the shell body, and the top support block is located in the rotary ring, the second air hole is located on the shell body, and the rotary cover is screwed with the rotary ring.

3. The screw-cap type air charging and discharging pump according to claim 2, characterized in that, The top support block includes a top block and a plurality of support columns, the support columns are circumferentially and spacedly arranged around the second air hole, and one end of each support column away from the shell body is connected with the top block, and the control switch is arranged in the top block.

4. The screw-cap type air charging and discharging pump according to claim 3, wherein, The control switch includes a circuit board, a button and a charging socket, the circuit board is arranged on one side surface of the top block close to the second air hole, the button is arranged on the circuit board, and the circuit board passes through the top block to extend out of the top block, and the charging socket is arranged on the circuit board.

5. The screw-cap type air charging and discharging pump according to claim 4, wherein, The blowing driving member includes a blowing motor and a battery, the blowing motor and the battery are both arranged on the inner side wall of the pump chamber, and the blowing motor and the battery are both electrically connected with the circuit board.

6. The screw-cap type air charging and discharging pump according to claim 5, wherein, The bottom shell includes an outer shell and a bottom cover, the bottom cover is buckled on one end of the outer shell away from the top shell, so that the bottom cover and the outer shell jointly form the pump chamber, and the first air hole is located on the bottom cover.

7. The screw-cap type air charging and discharging pump according to claim 2, wherein, A soft rubber ring is further arranged on the outer peripheral wall of the shell body.

8. The screw-cap type air charging and discharging pump according to claim 2, wherein A flexible connection strip is rotatably arranged on the shell body, and one end of the flexible connection strip away from the shell body is rotatably connected with the rotary cover.

9. The screw-cap type air charging and discharging pump according to claim 2, wherein, Two of the first air holes, the air storage chamber, the pump chamber and the second air hole are provided, one of the second air holes, one of the air storage chambers, one of the pump chambers and one of the first air holes are sequentially communicated, and the other second air hole, the other pump chamber, the other air storage chamber and the other first air hole are sequentially communicated.

10. The screw cap type air charging and discharging pump according to claim 9, wherein Two blowing driving members are provided, the two blowing driving members are respectively arranged in the two pump chambers, two wind wheels are provided, the two wind wheels are respectively arranged on the output shafts of the two blowing driving members, and the two wind wheels are respectively located in the two air storage chambers.

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