Bidirectional inflating pump

Abstract

The utility model discloses a bidirectional inflation pump which comprises a body, an inner pipe, a piston, a first metal ball, a second metal ball, a handle, a mouthpiece, a first movable piece and a second movable piece. A first metal ball is movably arranged in a first exhaust hole and controls opening and closing of the first exhaust hole, and a second metal ball is movably arranged in a second air inlet hole and controls opening and closing of the second air inlet hole. The first movable piece is arranged at the rear end of the mounting cavity and covers the first air inlet hole so as to control opening and closing of the first air inlet hole, and the second movable piece is arranged in the fifth flow channel and covers the first through hole so as to control opening and closing of the first through hole. According to the inflating pump, the inflating objects can be inflated when the handle is pushed forwards and pulled backwards, the bidirectional inflating function is achieved, the inflating efficiency is improved, the inflating time is effectively shortened, more labor is saved, physical consumption is reduced, the experience feeling of a user is improved, and existing requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of inflator pump technology, especially to a bidirectional inflator pump. BACKGROUND

[0002] With the continuous development of social economy and the continuous improvement of people's living standards, more and more auxiliary tools are being manufactured and continuously innovated and improved. The inflator pump is an auxiliary tool for inflation.

[0003] The inflator pump is also known as the inflator, the air pump, the air cylinder, and the inflator pump is a tool for inflating various inflatable objects (such as balls, tires, air beds, etc.). According to its structure and function, the inflator pump can be divided into many types, including manual inflator pump, foot-operated inflator pump, electric inflator pump, high-pressure inflator pump and multifunctional inflator pump, etc.

[0004] The current inflator pump is generally a one-way inflator structure, which first pulls the handle backward to compress the gas, and then pushes the handle forward, and the one-way valve opens, and the gas is injected into the object to be inflated. The structure of this inflator pump is simple, although it can achieve the basic inflation function, but the inflator pump can only inflate in one direction, the inflation efficiency is low, the user needs to pull and push the handle multiple times during inflation, the inflation time is long, the physical consumption is more, the user experience is poor, and it cannot meet the existing demand. Therefore, it is necessary to study a new technical scheme to improve the current inflator pump. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a bidirectional inflator pump, which can effectively solve the problems of the existing inflator pump, such as one-way inflation, low inflation efficiency, the need for the user to pull and push the handle multiple times during inflation, long inflation time, high physical consumption, and poor user experience.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A bidirectional inflator pump, comprising a body, an inner tube, a piston, a first metal ball, a second metal ball, a handle, a connector, a first movable piece and a second movable piece.

[0008] The body has a mounting cavity, the rear end of the body is provided with a first air inlet hole, the first air inlet hole is communicated with the mounting cavity and the outside, the front end of the body is provided with a first air outlet hole communicated with the mounting cavity, a first through hole, a second air inlet hole, and the second air inlet hole is communicated with the outside; the inner tube is arranged in the mounting cavity, the inner tube has a third flow channel communicated with the first air outlet hole; the piston is movably arranged in the mounting cavity and located at the periphery of the inner tube, the rear end of the piston extends out of the body, the piston divides the mounting cavity into a first flow channel and a fourth flow channel, the first flow channel is communicated with the first air inlet hole, the fourth flow channel is communicated with the second air inlet hole and the first through hole, the second flow channel is formed between the piston and the inner tube, and the second flow channel is communicated with the first flow channel and the third flow channel.

[0009] The first metal ball is movably arranged in the first air outlet hole and can control the opening and closing of the first air outlet hole; the second metal ball is movably arranged in the second air inlet hole and can control the opening and closing of the second air inlet hole; the handle is arranged at the rear end of the piston; the mouthpiece is arranged at the front end of the body and forms a fifth flow channel with the body, the fifth flow channel is communicated with the first through hole and the first air outlet hole, the mouthpiece is provided with a second air outlet hole communicated with the fifth flow channel; the first movable piece is arranged at the rear end of the mounting cavity and covers the first air inlet hole, and the first movable piece can control the opening and closing of the first air inlet hole; the second movable piece is arranged in the fifth flow channel and covers the first through hole, and the second movable piece can control the opening and closing of the first through hole.

[0010] As a preferred solution, the rear end of the handle is provided with a containing cavity, and a ball needle and a handle plug are further arranged, the ball needle is detachably arranged in the containing cavity, and the handle plug is detachably arranged on the handle and covers the opening of the containing cavity, the ball needle can be stored in the inflator, and the operation is simple, which is convenient for users to use.

[0011] As a preferred solution, the rear end of the ball needle is provided with external threads, the second air outlet hole of the mouthpiece is provided with internal threads, and the internal threads are threadedly connected with the external threads, so that the structure is simple and stable, and the operation is convenient and fast.

[0012] As a preferred solution, the rear end of the first air outlet hole is provided with a first sealing slope, the first metal ball is movably arranged in the first air outlet hole and cooperates with the first sealing slope to control the opening and closing of the first air outlet hole, the front end of the second air inlet hole is provided with a second sealing slope, and the second metal ball is movably arranged in the second air inlet hole and cooperates with the second sealing slope to control the opening and closing of the second air inlet hole.

[0013] As a preferred scheme, the piston comprises a main body and a connecting rod which are integrally connected, the main body has an annular mounting groove, and a sealing ring is further arranged in the annular mounting groove; the handle is arranged at the rear end of the connecting rod; the connecting rod is provided with a second through hole which is communicated with the first flow channel and the second flow channel.

[0014] As a preferred scheme, the main body is made of ABS material.

[0015] As a preferred scheme, the first metal ball and the second metal ball are steel balls.

[0016] As a preferred scheme, the first movable piece and the second movable piece are made of silica gel material.

[0017] As a preferred scheme, the mouthpiece is provided with a third air inlet hole which is located beside the second air outlet hole and is communicated with the second air inlet hole and the outside.

[0018] As a preferred scheme, the main body comprises a front shell and a rear cover; the front shell is provided with the mounting cavity; the first air outlet hole, the first through hole and the second air inlet hole are arranged at the front end of the front shell; the rear cover is arranged at the rear end of the front shell and covers the rear end opening of the mounting cavity; a plurality of first air inlet holes are arranged on the rear cover and are uniformly arranged in a circumferential direction; the first movable piece is annular and is arranged on the rear cover and covers the plurality of first air inlet holes; and the first movable piece can control the opening and closing of the plurality of first air inlet holes.

[0019] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically speaking, according to the above technical scheme, the utility model has the advantages of the following aspects:

[0020] By arranging the piston in the mounting cavity and at the periphery of the inner tube, the piston divides the mounting cavity into the first flow channel and the fourth flow channel; by arranging the first metal ball in the first air outlet hole and controlling the opening and closing of the first air outlet hole, by arranging the second metal ball in the second air inlet hole and controlling the opening and closing of the second air inlet hole, by arranging the first movable piece at the rear end of the mounting cavity and covering the first air inlet hole, the first movable piece can control the opening and closing of the first air inlet hole, by arranging the second movable piece in the fifth flow channel and covering the first through hole, the second movable piece can control the opening and closing of the first through hole, the structure of the air pump can inflate the inflatable article when the handle is pushed forward and pulled backward, realizes the bidirectional inflation function, greatly improves the inflation efficiency, reduces the operation frequency of the user when inflating, effectively shortens the inflation time, is more labor-saving, reduces the consumption of physical strength, improves the experience of the user, and meets the existing demand.

[0021] In order to make the structure features and functions of the utility model more clear, the utility model will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a perspective structure schematic diagram of a preferred embodiment of the utility model;

[0023] Figure 2 is a perspective structure schematic diagram of another angle of a preferred embodiment of the utility model;

[0024] Figure 3 is an exploded view of a preferred embodiment of the utility model;

[0025] Figure 4 is a sectional view of a preferred embodiment of the utility model;

[0026] Figure 5 is a perspective structure schematic diagram of a front shell in a preferred embodiment of the utility model;

[0027] Figure 6 is Figure 4 an enlarged schematic diagram of position A in the utility model;

[0028] Figure 7 is a structure schematic diagram when a preferred embodiment of the utility model pushes a handle forward;

[0029] Figure 8 is a structure schematic diagram when a preferred embodiment of the utility model pulls a handle backward.

[0030] EXPLANATION OF DRAWINGS:

[0031] 10, body 11, installation cavity

[0032] 12, first air inlet hole 13, first air outlet hole

[0033] 131, first sealing slope 14, first through hole

[0034] 15, second air inlet hole 151, second sealing slope

[0035] 16, front shell 17, rear cover

[0036] 20, inner tube 30, piston

[0037] 31, main body 311, annular installation groove

[0038] 32, connecting rod 321, second through hole

[0039] 33, sealing ring 40, first metal ball

[0040] 50, second metal ball 60, handle

[0041] 61, accommodating cavity 62, handle plug

[0042] 70, mouthpiece 71, second exhaust hole

[0043] 711, internal thread 72, third air inlet hole

[0044] 80, first movable piece 90, second movable piece

[0045] 110, ball needle 111, external thread

[0046] 101, first flow channel 102, second flow channel

[0047] 103, third flow channel 104, fourth flow channel

[0048] 105, fifth flow channel. DETAILED DESCRIPTION

[0049] Please refer to Figures 1 to 8 The specific structure of the preferred embodiment of the utility model is shown in the figure, which comprises a body 10, an inner tube 20, a piston 30, a first metal ball 40, a second metal ball 50, a handle 60, a mouthpiece 70, a first movable piece 80 and a second movable piece 90.

[0050] The body 10 has a mounting cavity 11, the rear end of the body 10 is provided with a first air inlet hole 12, the first air inlet hole 12 is communicated with the mounting cavity 11 and the outside, the front end of the body 10 is provided with a first exhaust hole 13, a first through hole 14 and a second air inlet hole 15 communicated with the mounting cavity 11, and the second air inlet hole 15 is communicated with the outside; in this embodiment, the rear end of the first exhaust hole 13 is provided with a first sealing slope 131, and the front end of the second air inlet hole 15 is provided with a second sealing slope 151; the body 10 is made of ABS material; the body 10 comprises a front shell 16 and a rear cover 17, the mounting cavity 11, the first exhaust hole 13, the first through hole 14 and the second air inlet hole 15 are arranged on the front end of the front shell 16, the rear cover 17 is arranged on the rear end of the front shell 16 and covers the rear end opening of the mounting cavity 11, a plurality of first air inlet holes 12 are arranged on the rear cover 17, and the plurality of first air inlet holes 12 are arranged uniformly in the circumferential direction.

[0051] The inner tube 20 is arranged in the mounting cavity 11, and the inner tube 20 has a third flow channel 103 communicated with the first exhaust hole 13.

[0052] The piston 30 is movably arranged in the installation cavity 11 and located at the periphery of the inner tube 20, the rear end of the piston 30 extends out of the body 10, the piston 30 divides the installation cavity 11 into the first flow channel 101 and the fourth flow channel 104, the first flow channel 101 is communicated with the first air inlet hole 12, the fourth flow channel 104 is communicated with the second air inlet hole 15 and the first through hole 14, the second flow channel 102 is formed between the piston 30 and the inner tube 20, the second flow channel 102 is communicated with the first flow channel 101 and the third flow channel 103; in this embodiment, the piston 30 comprises a main body 31 and a connecting rod 32 which are integrally connected, the main body 31 has an annular installation groove 311, further provided with a sealing ring 33 arranged in the annular installation groove 311, the connecting rod 32 is provided with a second through hole 321 which is communicated with the first flow channel 101 and the second flow channel 102.

[0053] The first metal ball 40 is movably arranged in the first air outlet hole 13 and can control the opening or closing of the first air outlet hole 13; in this embodiment, the first metal ball 40 is movably arranged in the first air outlet hole 13 and cooperates with the first sealing slope 131 to control the opening or closing of the first air outlet hole 13; the first metal ball 40 is a steel ball.

[0054] The second metal ball 50 is movably arranged in the second air inlet hole 15 and can control the opening or closing of the second air inlet hole 15; in this embodiment, the second metal ball 50 is movably arranged in the second air inlet hole 15 and cooperates with the second sealing slope 151 to control the opening or closing of the second air inlet hole 15; the second metal ball 50 is a steel ball.

[0055] The handle 60 is arranged at the rear end of the piston 30; in this embodiment, the rear end of the handle 60 is provided with a containing cavity 61, further provided with a ball needle 110 and a handle plug 62, the ball needle 110 is detachably arranged in the containing cavity 61, the handle plug 62 is detachably arranged on the handle 60 and covers the opening of the containing cavity 61, the ball needle 110 can be stored in the inflator, which is simple to operate and brings convenience to the user; specifically, the rear end of the ball needle 110 is provided with an external thread 111; the handle 60 is arranged at the rear end of the connecting rod 32.

[0056] The connecting nozzle 70 is arranged at the front end of the body 10 and cooperates with the body 10 to form a fifth flow channel 105, which is in communication with the first through hole 14 and the first exhaust hole 13. The connecting nozzle 70 is provided with a second exhaust hole 71, which is in communication with the fifth flow channel 105. In this embodiment, the second exhaust hole 71 of the connecting nozzle 70 is provided with an internal thread 711, which is threadedly connected with the external thread 111. The connecting nozzle 70 is provided with a third air inlet hole 72, which is located beside the second exhaust hole 71. The third air inlet hole 72 is in communication with the second air inlet hole 15 and the outside.

[0057] The first movable piece 80 is arranged at the rear end of the mounting cavity 11 and covers the first air inlet hole 12. The first movable piece 80 can control the opening and closing of the first air inlet hole 12. In this embodiment, the first movable piece 80 is made of silica gel. The first movable piece 80 has a ring structure. The first movable piece 80 is arranged on the rear cover 17 and covers a plurality of first air inlet holes 12. The first movable piece 80 can control the opening and closing of the plurality of first air inlet holes 12.

[0058] The second movable piece 90 is arranged in the fifth flow channel 105 and covers the first through hole 14. The second movable piece 90 can control the opening and closing of the first through hole 14. In this embodiment, the second movable piece 90 is made of silica gel.

[0059] The use process and working principle of this embodiment are described in detail as follows:

[0060] In use, first, the knob 62 is opened, and the ball needle 110 is taken out of the accommodating cavity 61 of the knob 60. Then, the ball needle 110 is installed on the air pump, and the external thread 111 of the ball needle 110 is threadedly connected with the internal thread 711 of the connecting nozzle 70. Then, the ball needle 110 is inserted into the ball, and the air pump is used to inflate the ball. The inflation function can be realized by pushing the knob 60 forward and pulling the knob 60 backward, which greatly improves the inflation efficiency.

[0061] When the knob 60 is pushed forward, the gas in the fourth flow channel 104 flows forward. The gas pushes the second metal ball 50 to approach the second sealing slope 151, so that the second air inlet hole 15 is closed. At the same time, the gas pushes the second movable piece 90 to open through the first through hole 14, so that the gas enters the fifth flow channel 105. The gas pushes the first metal ball 40 to approach the first sealing slope 131, so that the first exhaust hole 13 is closed. The gas is discharged from the second exhaust hole 71 and can be used for inflating the ball. The outside gas enters the first flow channel 101 through the first air inlet hole 12, sequentially passes through the second through hole 321, the second flow channel 102, and the third flow channel 103, and is collected, which can prepare for the next pulling action.

[0062] When the handle 60 is pulled back, the gas in the first flow channel 101 passes through the second through hole 321, the second flow channel 102 and the third flow channel 103, then the gas pushes the first metal ball 40 away to open the first exhaust hole 13, the gas is discharged from the second exhaust hole 71 through the fifth flow channel 105 and can inflate the ball, the gas makes the second movable piece 90 tightly close to the first through hole 14 and closes the first through hole 14; at the same time, the external gas pushes the second metal ball 50 away to open the second air inlet hole 15, the gas flows into the fourth flow channel 104 and is collected, and the next pushing operation can be prepared.

[0063] The design focus of the utility model lies in:

[0064] By setting the piston in the installation cavity and at the periphery of the inner tube, the piston separates the installation cavity into the first flow channel and the fourth flow channel, the first metal ball is movably arranged in the first exhaust hole and can control the opening and closing of the first exhaust hole, the second metal ball is movably arranged in the second air inlet hole and can control the opening and closing of the second air inlet hole, the first movable piece is arranged at the rear end of the installation cavity and covers the first air inlet hole, the first movable piece can control the opening and closing of the first air inlet hole, the second movable piece is arranged in the fifth flow channel and covers the first through hole, and the second movable piece can control the opening and closing of the first through hole, the inflation pump with the structure can inflate the inflated article when the handle is pushed forward and pulled back, realizes the bidirectional inflation function, greatly improves the inflation efficiency, reduces the operation frequency of the user when inflating, effectively shortens the inflation time, is more labor-saving, reduces the consumption of physical strength, improves the experience of the user, and meets the existing demand.

[0065] The above is only a preferred embodiment of the utility model, and does not limit the technical range of the utility model, so any slight modification, equivalent change and modification according to the technical essence of the utility model are still within the technical range of the utility model.

Claims

1. A dual-direction hand pump characterized by: The body, the inner tube, the piston, the first metal ball, the second metal ball, the handle, the mouthpiece, the first movable piece and the second movable piece are included. The body has a mounting cavity, a first air inlet hole at the rear end of the body, a first air outlet hole, a first through hole, a second air inlet hole at the front end of the body, and the second air inlet hole is communicated with the outside; the inner tube is arranged in the mounting cavity, and the inner tube has a third flow channel communicated with the first air outlet hole; the piston is movably arranged in the mounting cavity and located at the periphery of the inner tube, the rear end of the piston extends out of the body, the piston divides the mounting cavity into a first flow channel and a fourth flow channel, the first flow channel is communicated with the first air inlet hole, the fourth flow channel is communicated with the second air inlet hole and the first through hole, and the second flow channel is formed between the piston and the inner tube, the second flow channel is communicated with the first flow channel and the third flow channel. The first metal ball is movably arranged in the first air outlet hole and can control the opening and closing of the first air outlet hole; the second metal ball is movably arranged in the second air inlet hole and can control the opening and closing of the second air inlet hole; the handle is arranged at the rear end of the piston; the mouthpiece is arranged at the front end of the body and forms a fifth flow channel with the body, the fifth flow channel is communicated with the first through hole and the first air outlet hole, the mouthpiece is provided with a second air outlet hole communicated with the fifth flow channel; the first movable piece is arranged at the rear end of the mounting cavity and covers the first air inlet hole, and the first movable piece can control the opening and closing of the first air inlet hole; the second movable piece is arranged in the fifth flow channel and covers the first through hole, and the second movable piece can control the opening and closing of the first through hole.

2. The dual directional hand pump of claim 1, wherein: The rear end of the handle is provided with a containing cavity, and a ball needle and a handle plug are further arranged, the ball needle is detachably arranged in the containing cavity, and the handle plug is detachably arranged on the handle and covers the opening of the containing cavity.

3. The dual directional hand pump of claim 2, wherein: The rear end of the ball needle is provided with external threads, and the second air outlet hole of the mouthpiece is provided with internal threads matched with the external threads for threaded connection.

4. The dual directional hand pump of claim 1, wherein: The rear end of the first air outlet hole is provided with a first sealing slope, the first metal ball is movably arranged in the first air outlet hole and matched with the first sealing slope to control the opening and closing of the first air outlet hole, the front end of the second air inlet hole is provided with a second sealing slope, and the second metal ball is movably arranged in the second air inlet hole and matched with the second sealing slope to control the opening and closing of the second air inlet hole.

5. The dual directional hand pump of claim 1, wherein: The piston comprises a main body and a connecting rod arranged integrally, the main body has an annular mounting groove, and a sealing ring is further arranged in the annular mounting groove, the handle is arranged at the rear end of the connecting rod, the connecting rod is provided with a second through hole communicated with the first flow channel and the second flow channel.

6. The dual directional hand pump of claim 1, wherein: The body is made of ABS material.

7. The dual directional hand pump of claim 1, wherein: The first metal ball and the second metal ball are steel balls.

8. The dual directional hand pump of claim 1, wherein: The first movable piece and the second movable piece are made of silica gel material.

9. The dual directional hand pump of claim 1, wherein: The mouthpiece is provided with a third air inlet hole beside the second air outlet hole, and the third air inlet hole is communicated with the second air inlet hole and the outside.

10. The dual directional hand pump of claim 1, wherein: The body comprises a front shell and a rear cover, the front shell is provided with the mounting cavity, the first exhaust hole, the first through hole and the second air inlet hole are arranged at the front end of the front shell, the rear cover is arranged at the rear end of the front shell and covers the rear end opening of the mounting cavity, a plurality of first air inlet holes are arranged on the rear cover, the plurality of first air inlet holes are uniformly arranged in a circumferential interval, the first movable piece is in a ring structure, the first movable piece is arranged on the rear cover and covers the plurality of first air inlet holes, and the first movable piece can control the opening and closing of the plurality of first air inlet holes.

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