Knob inflator pump

Abstract

The utility model aims to provide a knob inflator pump which comprises a pump shell and a fan, an air inlet and an air outlet are formed in the pump shell, the fan is arranged in the pump shell, a round protruding block is arranged on the side face, close to the air inlet, of the pump shell, a switch is arranged in the round protruding block, the switch is electrically connected with the fan, and the switch is arranged towards an opening of the round protruding block. A rotary knob is detachably connected to the circular protruding block in a threaded mode and used for pressing the switch when the rotary knob is connected with the circular protruding block in a threaded mode, and the rotary knob seals the air inlet. Therefore, the air inlet can be closed by utilizing the knob when the pump is not used, impurities are prevented from entering the pump shell, meanwhile, when the knob is screwed in or out, the fan is automatically controlled to be started and stopped by pressing or keeping away from the switch, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air pump, in particular to a knob air pump. BACKGROUND

[0002] With the change of people's life style, the use amount of air-filled products is more and more large, for example, air-filled mattress, air-filled motorboat, air-filled tent etc., the air pump for inflating air-filled products also follows the rapid development.

[0003] The air pump can be divided into manual air pump and electric air pump according to the driving mode, wherein the manual air pump is gradually eliminated because of time-consuming and laborious, and the electric air pump realizes inflation by driving the impeller to rotate through the motor, and the use amount increases sharply because of convenient use.

[0004] The existing air pump is provided with a fan in the pump shell, wherein the inlet and the outlet are formed on the pump shell, the fan is started to drive the gas to enter the air pump from the inlet, and then the gas flows out from the outlet, and the directional flow of the gas has the inflation function.

[0005] However, the existing air pump has the following deficiencies in structure: because the inlet is directly contacted with the outside, the air pump is contacted with the outside for a long time when not in use, and foreign matters are easily fallen into the air pump; secondly, the existing air pump is provided with a control switch on the pump shell to control the start and stop of the fan. The air pump with the structure is not convenient in actual use. Therefore, in order to solve the above-mentioned deficiencies, the knob air pump is provided. SUMMARY

[0006] The utility model aims at overcoming the deficiencies in the prior art, and provides a knob air pump which is simple and reliable in structure and convenient to operate.

[0007] The utility model aims at overcoming the deficiencies in the prior art, and provides a knob air pump which is simple and reliable in structure and convenient to operate.

[0008] A knob air pump comprises a pump shell and a fan, the pump shell is provided with an inlet and an outlet, and the fan is arranged in the pump shell.

[0009] A circular lug is arranged on one side of the pump shell close to the inlet, a switch is arranged in the circular lug, the switch is electrically connected with the fan, the switch is arranged towards the opening of the circular lug, a knob is detachably screwed on the circular lug, when the knob is screwed on the circular lug, the knob presses the switch, and the knob closes the inlet.

[0010] Optionally, the pump shell is provided with a blast cavity and an inner cavity, the air inlet is located on the axial side wall of the blast cavity away from the inner cavity, a radial hole is formed on the radial inner wall of the blast cavity, the radial hole is communicated with the inner cavity, and the air outlet is communicated with the inner cavity.

[0011] Optionally, the fan comprises a driving motor and an impeller, the driving motor is arranged on one side wall of the inner cavity close to the blast cavity, the impeller is arranged on the output shaft of the driving motor, and the impeller is located in the blast cavity.

[0012] Optionally, the pump shell comprises a panel, a shell and a bottom plate, the shell is provided with a blast groove and an inner groove, the panel is buckled on the shell so as to form the blast cavity with the blast groove, the bottom plate is buckled on the shell so as to form the inner cavity with the inner groove, the air inlet is located on the bottom plate, the air outlet is located on the panel, and the circular lug is located on the panel.

[0013] Optionally, the edge of the panel is provided with a soft rubber ring.

[0014] Optionally, the rotary knob air pump further comprises a circuit main plate and a circuit sub-plate, the circuit main plate is arranged in the inner groove, the circuit sub-plate is arranged in the circular lug, the switch is located on the circuit sub-plate, the circuit sub-plate is electrically connected with the circuit main plate, and the circuit main plate is electrically connected with the fan.

[0015] Optionally, the shell is further provided with a battery groove, the panel, the bottom plate and the battery groove jointly form a battery cavity, a battery is arranged in the battery cavity, and the battery is electrically connected with the circuit main plate.

[0016] Optionally, the circuit sub-plate is further provided with a USB socket.

[0017] Optionally, the rotary knob air pump further comprises an adapter belt, and two ends of the adapter belt are respectively connected with the circular lug and the rotary knob.

[0018] Optionally, the air outlet is provided with a sealing baffle.

[0019] Compared with the prior art, the rotary knob air pump has at least the following advantages:

[0020] The utility model discloses a knob inflator pump, including pump shell and fan, the pump shell is set with air inlet and air outlet, the fan sets up in the pump shell, the one side of pump shell near air inlet is provided with round lug, the switch is provided in round lug, and the switch is electrically connected with the fan, and the switch is set to the opening of round lug, and the knob is detachably screwed on round lug, and the knob is used to screw with round lug, so that the knob presses switch, and the knob seals air inlet. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be needed to use the drawing in the embodiment briefly introduced, should understand, the following drawing only shows some embodiments of the utility model, therefore should not be regarded as the limited scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0022] Figure 1 It is the structure schematic diagram of the knob inflator pump of an embodiment of the utility model;

[0023] Figure 2 It is Figure 1 The cross section schematic diagram of the knob inflator pump shown;

[0024] Figure 3 It is Figure 1 The partial structure schematic diagram of the knob inflator pump shown;

[0025] Figure 4 It is Figure 1 The explosion structure schematic diagram of the knob inflator pump shown;

[0026] Figure 5 It is the structure schematic diagram of the shell of an embodiment of the utility model;

[0027] Figure 6 It is Figure 5 The structure schematic diagram of another angle of the shell shown.

[0028] Mark explanation of drawing:

[0029] 10. knob inflator pump; 100. pump shell; 200. fan; 111. air inlet; 131. air outlet; 300. circular lug; 400. switch; 500. knob; 121. radial hole; 210. driving motor; 220. impeller; 110. panel; 120. shell; 130. bottom plate; 122. air blowing groove; 123. inner groove; 140. soft rubber ring; 610. main circuit board; 620. sub-circuit board; 124. battery groove; 700. battery; 630. USB socket; 800. adapter strip; 900. sealing baffle. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings.

[0031] As shown in Figures 1 to 3 A knob inflator pump 10, comprising a pump shell 100 and a fan 200, the pump shell 100 is provided with an air inlet 111 and an air outlet 131, the fan 200 is arranged in the pump shell 100, a circular lug 300 is arranged on the side of the pump shell 100 close to the air inlet 111, a switch 400 is arranged in the circular lug 300, the switch 400 is electrically connected with the fan 200, the switch 400 is arranged towards the opening of the circular lug 300, a knob 500 is detachably screwed on the circular lug 300, the knob 500 is used to press the switch 400 when it is screwed with the circular lug 300, and the knob 500 closes the air inlet 111.

[0032] It should be noted that the circular lug 300 is arranged on the side of the pump shell 100 close to the air inlet 111, the knob 500 is screwed with the circular lug 300, and the switch 400 is arranged in the circular lug 300, wherein the switch 400 is electrically connected with the fan 200. In this way, when the knob 500 is screwed with the circular lug 300, the knob 500 can press the switch 400, and the fan 200 stops at the same time, and the knob 500 can close the air inlet 111. When the knob 500 is screwed out of the circular lug 300 in the opposite direction, the switch 400 is reset, and the fan 200 starts. In this way, the knob 500 can close the air inlet 111 when not in use, preventing foreign matter from entering the pump shell 100, and the knob 500 can press or move away from the switch 400 when screwed in or out, automatically controlling the start and stop of the fan 200, which is convenient to operate.

[0033] As shown in Figure 4 and Figure 5 In an embodiment, a blowing cavity and an inner cavity are formed in the pump shell 100, the air inlet 111 is located on the axial side wall of the blowing cavity away from the inner cavity, a radial hole 121 is formed on the radial inner wall of the blowing cavity, the radial hole 121 is communicated with the inner cavity, and the air outlet 131 is communicated with the inner cavity.

[0034] It should be noted that the air inlet 111 is located on the axial side wall of the air chamber, and the radial side wall of the air chamber is communicated with the inner cavity through the radial hole 121. In this way, the air chamber has a cochlear structure, so that when the fan 200 rotates in the cochlear, it can stably drive the gas to flow into the air chamber from the air inlet 111, then flow into the inner cavity from the radial hole 121, and finally flow out from the air outlet 131.

[0035] As shown in Figure 2 , in an embodiment, the fan 200 includes a driving motor 210 and an impeller 220. The driving motor 210 is arranged on one side wall of the inner cavity close to the air chamber, the impeller 220 is arranged on the output shaft of the driving motor 210, and the impeller 220 is located in the air chamber.

[0036] In this way, the pump shell 100 has a cochlear-shaped air chamber, and the impeller 220 rotates in the air chamber, so that the pump shell 100 and the fan 200 together form a centrifugal fan structure, which can effectively improve the air volume of the knob air pump 10. In addition, it should be noted that the pump shell 100 and the fan 200 form a centrifugal fan, compared with the existing air pump, by installing a commercially available centrifugal fan on the pump shell, the structure of the knob air pump 10 of the present application is more compact.

[0037] As shown in Figures 1 to 6 , in an embodiment, the pump shell 100 includes a panel 110, a shell 120, and a bottom plate 130. The shell 120 is provided with an air chamber groove 122 and an inner groove 123. The panel 110 is buckled on the shell 120 to form an air chamber with the air chamber groove 122. The bottom plate 130 is buckled on the shell 120 to form an inner cavity with the inner groove 123. The air outlet 131 is located on the bottom plate 130, the air inlet 111 is located on the panel 110, and the circular protrusion 300 is located on the panel 110.

[0038] It should be noted that the pump shell 100 is composed of the panel 110, the shell 120, and the bottom plate 130, wherein the bottom plate 130 is located at the bottom of the shell 120, and the panel 110 is located at the top of the shell 120. The panel 110 and the shell 120 form an air chamber, and the bottom plate 130 and the shell 120 form an inner cavity. In an embodiment, the panel 110, the bottom plate 130, and the shell 120 are fixed as a whole by one of ultrasonic welding, high-frequency welding, and heat fusion.

[0039] As shown in Figure 1 , in an embodiment, the edge of the panel 110 is provided with a soft rubber ring 140.

[0040] It should be noted that in order to facilitate the fixing of the pump shell 100 on the inflatable product, a soft rubber ring 140 is arranged at the edge of the panel 110, for example, the soft rubber ring 140 is made of silica gel. For example, the soft rubber ring 140 is integrally injection molded with the panel 110. In this way, the soft rubber ring 140 is made of silica gel, which is convenient for welding and fixing with the inflatable product.

[0041] As shown in Figure 2 In an embodiment, the rotary knob inflatable pump 10 further comprises a circuit main plate 610 and a circuit sub-plate 620. The circuit main plate 610 is arranged in the inner groove 123, and the circuit sub-plate 620 is arranged in the circular protrusion 300. The switch 400 is located on the circuit sub-plate 620. The circuit sub-plate 620 is electrically connected with the circuit main plate 610, and the circuit main plate 610 is electrically connected with the fan 200.

[0042] It should be noted that the switch 400 is located on the circuit sub-plate 620. In this way, by fixing the circuit sub-plate 620 in the circular protrusion 300, the switch 400 can be stably fixed in the circular protrusion 300. The circuit sub-plate 620 is electrically connected with the circuit main plate 610 through wires.

[0043] As shown in Figure 5 and Figure 6 In an embodiment, the shell 120 further has a battery groove 124. The panel 110, the bottom plate 130 and the battery groove 124 jointly form a battery cavity. A battery 700 is arranged in the battery cavity. The battery 700 is electrically connected with the circuit main plate 610. In this way, the battery 700 is installed in the battery cavity, so that the rotary knob inflatable pump 10 does not need to be plugged in for use.

[0044] As shown in Figure 3 In an embodiment, the circuit sub-plate 620 further has a USB socket 630. In this way, the USB socket 630 can charge the battery 700.

[0045] As shown in Figure 1 In an embodiment, the rotary knob inflatable pump 10 further comprises an adapter belt 800. The two ends of the adapter belt 800 are respectively rotatably connected with the circular protrusion 300 and the rotary knob 500.

[0046] It should be noted that the end of the adapter belt 800 is sleeved on the circular protrusion 300 / rotary knob 500, so that the adapter belt 800 can rotate relative to the circular protrusion 300 / rotary knob 500, so that the rotary knob 500 is not easy to lose.

[0047] As shown in Figure 2As shown, in an embodiment, the air outlet 131 is provided with a sealing baffle 900. The middle part of the sealing baffle 900 is recessed towards the inner cavity, and the sealing baffle 900 is used to shield the air outlet 131. In this way, when the fan 200 is started, the gas flows out from the inner cavity through the air outlet 131, and the gas pushes open the sealing baffle 900 to flow out. When the fan 200 is stopped, the sealing baffle 900 shields the air outlet 131, so as to avoid the outside from being communicated with the inner cavity through the air outlet 131.

[0048] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. In the present application, the installation / fixation / setting can be understood as including but not limited to the locking and fixation by screws / welding, unless otherwise defined. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A knob inflator pump, comprising a pump shell and a fan, the pump shell being provided with an air inlet and an air outlet, the fan being arranged in the pump shell, characterized in that: a circular boss is arranged on one side of the pump shell close to the air inlet, a switch is arranged in the circular boss, the switch is electrically connected with the fan, the switch is arranged towards the opening of the circular boss, a knob is detachably screwed on the circular boss, when the knob is screwed on the circular boss, the knob presses the switch, and the knob closes the air inlet. The pump shell is provided with a blast cavity and an inner cavity, the air inlet is located on the axial side wall of the blast cavity away from the inner cavity, a radial hole is arranged on the radial inner wall of the blast cavity, the radial hole is communicated with the inner cavity, and the air outlet is communicated with the inner cavity.

2. A rotary knob air pump according to claim 1, wherein The fan comprises a driving motor and an impeller, the driving motor is arranged on the side wall of the inner cavity close to the blast cavity, the impeller is arranged on the output shaft of the driving motor, and the impeller is located in the blast cavity.

3. A rotary bulb pump according to claim 2, wherein The pump shell comprises a panel, a shell and a bottom plate, the shell is provided with a blast groove and an inner groove, the panel is buckled on the shell, so that the panel and the blast groove form the blast cavity, the bottom plate is buckled on the shell, so that the bottom plate and the inner groove form the inner cavity, the air inlet is located on the bottom plate, the air outlet is located on the panel, and the circular boss is located on the panel.

4. The rotary knob air pump of claim 2, wherein, The edge of the panel is provided with a soft rubber ring.

5. A rotary knob air pump according to claim 4, wherein The knob inflator pump further comprises a circuit mainboard and a circuit subboard, the circuit mainboard is arranged in the inner groove, the circuit subboard is arranged in the circular boss, the switch is arranged on the circuit subboard, the circuit subboard is electrically connected with the circuit mainboard, and the circuit mainboard is electrically connected with the fan.

6. The rotary knob air pump of claim 4, wherein, The shell is further provided with a battery groove, the panel, the bottom plate and the battery groove jointly form a battery cavity, a battery is arranged in the battery cavity, and the battery is electrically connected with the circuit mainboard.

7. A rotary knob air pump according to claim 6, wherein The circuit subboard is further provided with a USB socket.

8. The rotary knob air pump of claim 6, wherein, The knob inflator pump further comprises an adapter belt, the two ends of the adapter belt are respectively connected with the circular boss and the knob.

9. The rotary knob air pump of claim 1, wherein, The air outlet is provided with a sealing baffle.

10. The rotary knob air pump of claim 1, wherein, ​

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