Bicycle pedal type inflator pump

Abstract

The utility model discloses a bicycle pedal type inflator pump, and belongs to the field of inflator pumps. Comprising a piston pump, the tail end of a connecting rod for driving a piston in the piston pump to reciprocate penetrates below the outer side of the piston pump, the lower end of the connecting rod is connected with a kidney-shaped ring, and racks are arranged on two vertical inner walls of the kidney-shaped ring. A half gear is rotationally arranged in the kidney-shaped ring, the half gear is sequentially connected with the two racks in a meshed mode, a rotating wheel is coaxially fixed to the half gear, and the rotating wheel is rotationally connected with the piston pump. And a clamping device is arranged on the outer wall of the piston pump. After being connected with the bicycle, the bicycle can be driven by the rotating rear wheel, electricity is not needed, and the carrying weight is reduced.

Description

Technical Field

[0001] The present application belongs to the field of air pumps, and in particular relates to a bicycle pedal-type air pump. Background Art

[0002] When cycling, camping, or engaging in other outdoor activities, it's often necessary to inflate equipment such as air cushions and air bags. Existing air pumps come in two main power sources: electric and manual. Electric pumps require batteries and are heavy, while manual pumps are time-consuming and labor-intensive. Utility Model Content

[0003] The technical problem to be solved by the present application is: to overcome the deficiencies of the prior art and to provide a bicycle pedal-type air pump. After the present application is connected to the bicycle, it can be driven by the rotating rear wheel without the need for electricity, thereby reducing the weight carried.

[0004] The technical solution adopted by this application to solve the existing problems is:

[0005] A bicycle pedal-type air pump includes a piston pump. The end of a connecting rod that drives the reciprocating motion of the piston inside the piston pump is passed through the lower outside of the piston pump. The lower end of the connecting rod is connected to a waist-shaped ring. Racks are provided on the two vertical inner walls of the waist-shaped ring.

[0006] A half gear is provided for rotation inside the waist-shaped ring, and the half gear is meshed and connected with two racks in sequence. A runner is coaxially fixed to the half gear, and the runner is rotatably connected to the piston pump.

[0007] The outer wall of the piston pump is provided with a snap connector.

[0008] Preferably, the piston pump includes a pump body, a piston cavity is provided inside the pump body, and the piston is slidably arranged inside the piston cavity.

[0009] A one-way valve connected to the piston cavity is provided outside the pump body, and the one-way valve is used for exhausting air.

[0010] An air inlet hole which is in continuous connection with the piston cavity is provided on the pump body, and an air inlet one-way valve is provided on the air inlet hole.

[0011] Preferably, the air intake one-way valve adopts a second blocking plate, and the size and area of the second blocking plate is larger than the size and area of the air intake hole.

[0012] The second blocking plate is arranged inside the piston cavity. At least one guide rod is vertically fixed on the second blocking plate. The guide rod passes through the pump body. A first spring seat is fixed to the end of the guide rod. A third spring is sleeved on the guide rod located outside the pump body. Under the thrust of the third spring, the second blocking plate blocks the air inlet.

[0013] Preferably, the air inlet hole is a rectangular hole.

[0014] Preferably, a partition is provided in the internal chamber of the pump body, and a through hole is provided on the partition. The partition divides the internal chamber of the pump body into a piston chamber and an air storage chamber, and the one-way valve is connected to the air storage chamber.

[0015] Preferably, a first blocking plate is provided inside the air storage chamber, on which sliding rods arranged perpendicular to each other are coaxially fixed, and the sliding rod area is inserted into the coaxially arranged first sleeve, which is fixedly connected to the inner wall of the air storage chamber.

[0016] The first blocking plate is coaxially arranged with the through hole, and a second spring is sleeved on the outside of the slide bar. Under the push of the second spring, the first blocking plate blocks the through hole.

[0017] Preferably, the impeller is coaxially fixedly connected to the half gear via a connecting shaft, a rotating bracket is fixed to the bottom of the pump body, and the rotating bracket is sleeved on the connecting shaft.

[0018] Preferably, a first spring is sleeved on the connecting rod located inside the piston cavity.

[0019] Preferably, a support plate is fixed on the end surface of the pump body on one side facing the rear frame of the bicycle, and a connector is rotatably connected to the support plate.

[0020] Preferably, the connector is a clamp that is sealed by bolts.

[0021] Compared with the prior art, this application has the following beneficial effects:

[0022] (1) After being installed on a bicycle, it is driven by the rotating rear wheel, without the need for electricity, thus reducing the weight to be carried.

[0023] (2) It is convenient to inflate the airbag when riding outdoors, and it is easy to carry and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present application is further described below with reference to the accompanying drawings and examples.

[0025] Figure 1 This is a structural diagram of a bicycle pedal-type air pump for this application.

[0026] Figure 2 for Figure 1 The first cross-sectional view,

[0027] Figure 3 for Figure 1 A second cross-sectional view of .

[0028] In the figure: 1- pump body, 101- piston chamber, 102- air storage chamber, 103- air inlet, 2- piston, 3- connecting rod, 4- waist ring, 5- rack, 6- first spring, 7- rotating wheel, 8- connecting shaft, 9- half gear, 10- rotating bracket, 11- partition, 12- through hole, 13- first plate, 14- slide rod, 15- second spring, 16- sleeve, 17- support plate, 18- connector, 19- second plate, 20- guide rod, 21- spring seat, 22- third spring, 23- rubber sheet, 24- one-way valve. DETAILED DESCRIPTION

[0029] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0030] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present application and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present application.

[0031] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0032] The accompanying drawings are the best embodiment of the bicycle pedal-type air pump. The present application will be further described in detail below in conjunction with the accompanying drawings.

[0033] In this embodiment, Figures 1 to 3As shown, a bicycle pedal-type air pump includes a pump body 1, a partition 11 is provided in the internal chamber of the pump body 1, and a through hole 12 is provided on the partition 11. The partition 11 divides the internal chamber of the pump body 1 into a piston chamber 101 and an air storage chamber 102. The piston chamber 101 and the air storage chamber 102 are connected through the through hole 12, and the piston 2 is slidably arranged inside the piston chamber 101.

[0034] An air inlet 103 is provided on the pump body 1 at the piston chamber 101. As the piston 2 moves downward, external air is drawn into the piston chamber 101 through the air inlet 103. As the piston 2 moves upward, the air inside the piston chamber 101 is injected into the air storage chamber 102 through the through hole 12. The air storage chamber 102 stabilizes the pressure and continuously outputs gas.

[0035] To prevent gas from being discharged again through the air inlet hole 103 during the upward movement of the piston 2, an air inlet check valve is provided on the air inlet hole 103. In this embodiment, to increase the area of the air inlet hole 103, the air inlet hole 103 is arranged in a rectangular shape. Therefore, the air inlet check valve adopts a second blocking plate 19, which has a larger area than the air inlet hole 103.

[0036] The second blocking plate 19 is arranged inside the piston chamber 102. At least one guide rod 20 is vertically fixed on the second blocking plate 19. The guide rod 20 passes through the pump body 1. A spring seat 21 is fixed to the end of the guide rod 20. A third spring 22 is sleeved on the guide rod 20 located outside the pump body 1. Under the thrust of the third spring 22, the second blocking plate 19 abuts against the inner wall of the piston chamber 101, blocking the air inlet 103.

[0037] In order to prevent the second plate 19 from being loosely closed in the early stage of the piston 2's upward movement, rubber sheets 23 are provided below or on the left and right sides of the second plate 19, with the other ends of the rubber sheets 23 in contact with the inner wall of the piston cavity 101. In this way, even if the second plate 19 is loosely closed in the early stage of the piston 2's upward movement, the airflow generated by the upward movement of the piston 2 will push the second plate 19 to close tightly, preventing the discharge of air.

[0038] A first spring 6 is sleeved on the connecting rod 3 located inside the piston cavity 101. When the air pump is not installed on the bicycle, the first spring 6 pushes the piston 2 to move to the top dead center, shortening the length of the entire air pump and facilitating the storage of the air pump.

[0039] A rotating bracket 10 is fixed at the bottom of the pump body 1. The rotating bracket 10 is sleeved on the connecting shaft 8 to play a limiting role. The two are rotatably connected.

[0040] The air storage chamber 102 is provided with a first blocking plate 13, on which are coaxially fixed sliding rods 14 arranged perpendicularly to each other. The sliding rods 14 are inserted into the coaxially arranged sleeves 16. The sleeves 16 play a guiding role and are fixedly connected to the inner wall of the air storage chamber 102.

[0041] The first blocking plate 13 is coaxially arranged with the through hole 12 , and a second spring 15 is sleeved on the outside of the slide rod 14 . Under the push of the second spring 15 , the first blocking plate 13 blocks the through hole 12 .

[0042] An exhaust hole is provided on the pump body 1 and is in communication with the air storage chamber 102 . A one-way valve 24 is provided outside the exhaust hole.

[0043] A support plate 17 is fixed to the end face of the pump body 1 facing the bicycle's rear frame. A connector 18 is rotatably connected to the support plate 17. Connector 18 engages the bicycle's rear frame. Its rotatable connection to the support plate 17 facilitates adjustment of the pump's installation position. A locking bolt is provided at the pivot point between connector 18 and support plate 17. Once the pump is positioned, tighten the locking bolt to prevent subsequent displacement.

[0044] The clamp 18 adopts the existing technology and can be a clamp that is sealed by fastening with bolts.

[0045] The above describes the implementation methods of the present application in detail in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. A bicycle pedal-type air pump, characterized in that: The invention comprises a piston pump, wherein the end of a connecting rod (3) for driving a piston (2) inside the piston pump to reciprocate is passed through the lower outer side of the piston pump, the lower end of the connecting rod (3) is connected to a waist-shaped ring (4), and racks (5) are provided on two vertical inner walls of the waist-shaped ring (4); A half gear (9) is provided for rotation inside the waist-shaped ring (4), and the half gear (9) is meshed and connected with two racks (5) in sequence. A runner (7) is coaxially fixed to the half gear (9), and the runner (7) is rotatably connected to the piston pump; The outer wall of the piston pump is provided with a snap connector (18).

2. A bicycle pedal-type air pump according to claim 1, characterized in that: The piston pump comprises a pump body (1), a piston cavity (101) is provided inside the pump body (1), and a piston (2) is slidably arranged inside the piston cavity (101); A one-way valve (24) is provided on the outside of the pump body (1) and is in continuous communication with the piston chamber (101). The one-way valve (24) is used for exhausting air. The pump body (1) is provided with an air inlet hole (103) which is in continuous connection with the piston chamber (101), and the air inlet hole (103) is provided with an air inlet one-way valve.

3. A bicycle pedal-type air pump according to claim 2, characterized in that: The air intake one-way valve adopts a second blocking plate (19), and the size and area of the second blocking plate (19) is larger than the size and area of the air intake hole (103); The second blocking plate (19) is arranged inside the piston chamber (101). At least one guide rod (20) is vertically fixed on the second blocking plate (19). The guide rod (20) passes through the pump body (1). A first spring seat (21) is fixed to the end of the guide rod (20). A third spring (22) is sleeved on the guide rod (20) located outside the pump body (1). Under the thrust of the third spring (22), the second blocking plate (19) blocks the air inlet (103).

4. A bicycle pedal-type air pump according to claim 2 or 3, characterized in that: The air inlet (103) is a rectangular hole.

5. A bicycle pedal-type air pump according to claim 2 or 3, characterized in that: A partition (11) is provided in the internal chamber of the pump body (1), and a through hole (12) is provided on the partition (11). The partition (11) divides the internal chamber of the pump body (1) into a piston chamber (101) and an air storage chamber (102). The one-way valve (24) is connected to the air storage chamber (102).

6. A bicycle pedal-type air pump according to claim 5, characterized in that: A first blocking plate (13) is provided inside the air storage chamber (102), and sliding rods (14) arranged perpendicular to each other are coaxially fixed on the first blocking plate (13). The sliding rods (14) are inserted into the coaxially arranged first sleeve (16), and the first sleeve (16) is fixedly connected to the inner wall of the air storage chamber (102); The first blocking plate (13) is coaxially arranged with the through hole (12), and the second spring (15) is sleeved on the outside of the slide rod (14). Under the push of the second spring (15), the first blocking plate (13) blocks the through hole (12).

7. A bicycle pedal-type air pump according to claim 6, characterized in that: The runner (7) is coaxially fixedly connected to the half gear (9) via a connecting shaft (8); a rotating bracket (10) is fixed to the bottom of the pump body (1); and the rotating bracket (10) is sleeved on the connecting shaft (8).

8. The bicycle pedal-type air pump according to claim 5, characterized in that: A first spring (6) is sleeved on the connecting rod (3) located inside the piston chamber (101).

9. A bicycle pedal-type air pump according to claim 2, 3, 6, 7 or 8, characterized in that: A support plate (17) is fixed on the end surface of the pump body (1) facing the rear frame of the bicycle, and a clamping device (18) is rotatably connected to the support plate (17).

10. The bicycle pedal-type air pump according to claim 9, characterized in that: The clamp (18) is a clamp that is sealed by bolts.

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