CN214887538U

CN214887538U - Knob type inflatable high-pressure hand air pump

Info

Publication number: CN214887538U
Application number: CN202120675555.1U
Authority: CN
Inventors: 樊雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-11-26
Anticipated expiration: 2031-04-02

Abstract

The utility model relates to the technical field of hand-pulling air pumps, in particular to a knob type inflatable high-pressure hand-pulling air pump, which comprises a cylinder body, a piston, an upper cover and a linkage pipe, wherein the piston is arranged inside the cylinder body and divides the cylinder body into an upper air chamber and a lower air chamber, the upper cover is arranged on the upper part of the cylinder body, the linkage pipe is arranged at the center of the upper cover in a penetrating way, the lower end of the linkage pipe is fixedly connected with the piston, a handle is arranged at the upper end of the linkage pipe, a switch component for controlling the communication between the upper air chamber and the outside is arranged on the upper cover, the switch component comprises a knob, a hollow screw rod, a sleeve, an upper cover sealing ring and a sealing sheet which are sequentially sleeved on the linkage pipe from top to bottom, the outer side of the sealing sheet is fixedly connected with the upper end of the linkage pipe, a counter bore is arranged in the middle part of the sealing sheet, the upper cover sealing ring is arranged in the counter bore, a guide groove is axially arranged on the side wall of the counter bore, a guide rib matched with the guide groove is arranged on the outer side of the sleeve, the sleeve is in threaded connection with the hollow screw. The switch between unidirectional inflation and bidirectional inflation is realized through the knob.

Description

Knob type inflatable high-pressure hand air pump

Technical Field

The utility model relates to a hand power air pump technical field more specifically relates to a high pressure hand power air pump is aerifyd to knob formula.

Background

The existing hand-pulled air cylinder comprises a one-way inflation hand-pulled air cylinder and a two-way inflation hand-pulled air cylinder, the one-way hand-pulled air cylinder only provides an inflation function in a single stroke during a reciprocating stroke of up and down movement of a piston, the use efficiency is low, and the two-way inflation hand-pulled air cylinder can perform an inflation action during both pushing and pulling two-way strokes.

The bidirectional inflation hand-pulling air cylinder requires good air tightness between the actuating pipe penetrating through the upper cover and the upper cover because the air cylinder also has an air suction and inflation process in the process of pulling the handle upwards, when the handle is pressed downwards to inflate, the gravity of a person also plays a role in pressing down the handle because of the pressing down process, so the pressing down and inflation process is relatively easy, when the handle is pulled upwards to inflate, the gravity of the person cannot play a role in pulling the handle, and the pressure of the upper space of the piston is relatively high, so the force is very great when the handle is continuously pulled by the pulling force of two hands to inflate, particularly when the air pressure of an inflated object is relatively high, the pressure of the upper space of the piston is very great, and at the moment, the handle is very labor-consuming if the handle is continuously pulled upwards again.

In view of the above problems, the solutions of the chinese invention patent "bidirectional inflation high pressure hand pulled inflator" with patent No. 201310332811.7 (publication No. CN 103362776 a) and the chinese utility model patent "a hand pulled inflator" with patent No. 201520362010.X (publication No. CN 204783517U) are provided, but the operation is inconvenient and the stability is weak.

Therefore, there is a need for improvements in the prior art.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, a knob type inflation high-pressure hand-pulled air pump capable of freely switching bidirectional inflation or unidirectional inflation is provided.

In order to solve the technical problem, the utility model discloses a technical scheme be:

a knob type inflation high-pressure hand-pulling air pump comprises a cylinder body, a piston, an upper cover and a linkage pipe, wherein the piston is arranged inside the cylinder body and divides the cylinder body into an upper air chamber and a lower air chamber;

the lower end of the upper cover is in threaded connection with the upper end of the cylinder body, and the middle part of the upper cover is provided with a valve hole;

the upper cover is provided with the switch module of control air chamber and external intercommunication, switch module includes from last to cup jointing knob, hollow screw, sleeve, upper cover sealing washer and the gasket on the linkage pipe down in proper order, the gasket outside and linkage pipe upper end fixed connection, the gasket middle part is provided with the counter bore, and the counter bore bottom is provided with the through-hole, the through-hole pass the linkage pipe and with the linkage between leave the clearance, the upper cover sealing washer sets up in the counter bore, is provided with the guide way along the axial on the lateral wall of counter bore, the telescopic outside is provided with the direction muscle with guide way matched with, be provided with the internal thread on the sleeve, sleeve and hollow screw threaded connection, the upper end fixed connection of knob and hollow screw.

Further, a spring is arranged between the upper cover sealing ring and the sleeve.

Furthermore, the piston comprises an air inlet guide chamber and an air outlet guide chamber, a first upper valve port and a first lower valve port which are communicated with the air inlet guide chamber, the upper air chamber and the lower air chamber, and a second upper valve port and a second lower valve port which are communicated with the air outlet guide chamber, the upper air chamber and the lower air chamber are arranged on the piston, an air inlet breather valve plate which only allows air to enter the upper air chamber or the lower air chamber from the air inlet guide chamber is arranged in the first upper valve port and the first lower valve port, and an air outlet breather valve plate which only allows air to enter the air outlet guide chamber from the upper air chamber or the lower air chamber is arranged in the second upper valve port and the second lower valve port.

Furthermore, the first upper valve port, the first lower valve port, the second upper valve port and the second lower valve port are all provided with two.

Furthermore, the linkage pipe comprises an outer pipe and an inner pipe, the lower end of the outer pipe is communicated with the air inlet and guide chamber, the lower end of the inner pipe is communicated with the air outlet and guide chamber, an air inlet and an air outlet are respectively arranged on two sides of the handle, the upper end of the inner pipe is communicated with the air outlet, and the upper end of the outer pipe is communicated with the air inlet.

Further, a piston ring is embedded outside the piston.

Furthermore, the piston comprises a base and a bottom cover which are bonded with each other, a first threaded hole communicated with the air inlet and guide chamber is formed in the base and connected with the outer pipe through the first threaded hole, a first inserting hole communicated with the air outlet and guide chamber is formed in the base, and the first inserting hole is connected with the inner pipe.

Furthermore, a pressure gauge is fixedly arranged at the upper end of the handle, and a sensing end of the pressure gauge is arranged in the inner pipe.

Furthermore, the handle lower extreme is provided with second screw hole and second spliced eye coaxially, second screw hole upper end and air inlet intercommunication, second screw hole lower extreme and outer tube threaded connection, second spliced eye upper end and gas outlet intercommunication, second spliced eye lower extreme and inner tube connection.

Compared with the prior art, the utility model beneficial effect who has does:

1. this hand power air pump simple structure, convenient operation only needs the rotary knob, alright realize one-way inflation and two-way inflated switching.

2. The utility model discloses the pressure release pressure of air chamber, adaptable different job scene in accessible spring control.

3. The utility model discloses can freely switch one-way aerifing and two-way aerifing, when the pressure of aerifing is littleer, adopt two-way aerifing to improve and aerify efficiency, when the pressure of aerifing is great, adopt one-way aerifing to reduce and aerify the degree of difficulty.

Drawings

The following will explain in further detail embodiments of the present invention with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is an enlarged view of portion B of FIG. 1 (bi-directionally inflated);

FIG. 3 is a diagram of the operating position of the switch assembly in a one-way inflation state;

FIG. 4 is an enlarged view of a portion C of FIG. 1;

FIG. 5 is a sectional view taken along line A-A of FIG. 1;

FIG. 6 is an enlarged view of a portion D of FIG. 5;

fig. 7 is an exploded view of the switch assembly of the present invention;

fig. 8 is a schematic view of the piston structure of the present invention.

1-cylinder body, 11-upper air chamber, 12-lower air chamber, 13-base, 2-piston, 21-air inlet air guide chamber, 211-first upper valve port, 212-first lower valve port, 213-air inlet breather valve plate, 22-air outlet air guide chamber, 221-second upper valve port, 222-second lower valve port, 223-air outlet breather valve plate, 23-piston ring, 24-base, 241-first threaded hole, 242-first plug hole, 25-bottom cover, 3-upper cover, 31-valve hole, 4-linkage pipe, 41-outer pipe, 42-inner pipe, 5-switch component, 51-knob, 52-hollow screw rod, 53-sleeve, 531-guide rib, 54-spring, 55-upper cover sealing ring and 56-sealing sheet, 561-counter bore, 562-through hole, 563-guide groove, 6-handle, 61-air inlet, 62-air outlet, 63-second threaded hole, 64-second plug hole, and 7-pressure gauge.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1 to 8, a knob type inflation high-pressure hand-pulled air pump comprises a cylinder body 1, a piston 2, an upper cover 3 and a linkage pipe 4, wherein the piston 2 is arranged inside the cylinder body 1 to divide the cylinder body 1 into an upper air chamber 11 and a lower air chamber 12, the upper cover 3 is arranged at the upper part of the cylinder body 1, the linkage pipe 4 penetrates through the center of the upper cover 3, the lower end of the linkage pipe 4 is fixedly connected with the piston 2, and the upper end of the linkage pipe 4 is provided with a handle 6;

the piston 2 comprises an air inlet air guide chamber 21 and an air outlet air guide chamber 22, a first upper valve port 211 communicating the air inlet air guide chamber 21 with the upper air chamber 11, a first lower valve port 212 communicating the air inlet air guide chamber 21 with the lower air chamber 12, a second upper valve port 221 communicating the air outlet air guide chamber 22 with the upper air chamber 11, and a second lower valve port 222 communicating the air outlet air guide chamber 22 with the lower air chamber 12 are arranged on the piston 2, an air inlet breather sheet 213 only allowing air to enter the upper air chamber 11 or the lower air chamber 12 from the air inlet air guide chamber 21 is arranged in the first upper valve port 211 and the first lower valve port 212, and an air outlet breather sheet 223 only allowing air to enter the air outlet air guide chamber 22 from the upper air chamber 11 or the lower air chamber 12 is arranged in the second upper valve port 221 and the second lower valve port 222.

Two first upper valve ports 211, two first lower valve ports 212, two second upper valve ports 221 and two second lower valve ports 222 are arranged, and the air flow is increased in a limited space.

The piston 2 comprises a base 24 and a bottom cover 25 which are bonded with each other, a first threaded hole 241 communicated with the air inlet and guide chamber 21 is arranged on the base 24 and is connected with the outer tube 41 through the first threaded hole 241, a first inserting hole 242 communicated with the air outlet and guide chamber 22 is arranged on the base 24, and the first inserting hole 242 is connected with the inner tube 42.

The linkage pipe 4 comprises an outer pipe 41 and an inner pipe 42, the lower end of the outer pipe 41 is communicated with the air inlet guide chamber 21, the lower end of the inner pipe 42 is communicated with the air outlet guide chamber 22, an air inlet 61 and an air outlet 62 are respectively arranged on two sides of the handle 6, the upper end of the inner pipe 42 is communicated with the air outlet 62, and the upper end of the outer pipe 41 is communicated with the air inlet 61.

The lower end of the upper cover 3 is in threaded connection with the upper end of the cylinder body 1, and the middle part of the upper cover 3 is provided with a valve hole 31;

the upper cover 3 is provided with a switch component 5 for controlling the upper air chamber 11 to be communicated with the outside, the switch component 5 comprises a knob 51, a hollow screw 52, a sleeve 53, a spring 54, an upper cover sealing ring 55 and a sealing sheet 56 which are sequentially sleeved on a linkage pipe from top to bottom, the outer side of the sealing sheet 56 is fixedly connected with the upper end of the linkage pipe 4, the middle part of the sealing sheet 56 is provided with a counter bore 561, the bottom of the counter bore 561 is provided with a through hole 562, the through hole 562 penetrates through the linkage pipe 4 and leaves a gap between the linkage pipe 4 and the linkage pipe 561, the upper cover sealing ring 55 is arranged in the counter bore 561, a guide groove 563 is axially arranged on the side wall of the counter bore 561, the outer side of the sleeve 53 is provided with a guide rib 531 matched with the guide groove 563, the sleeve 53 is provided with an internal thread, the sleeve 53 is in threaded connection with the hollow screw 52, and the knob 51 is fixedly connected with the upper end of the hollow screw 52.

The spring 54 is used for controlling the pressure relief pressure of the upper air chamber 11, and when the spring 54 is removed, the utility model discloses still can realize the switching of two-way inflation and one-way inflation.

The lower end of the handle 6 is coaxially provided with a second threaded hole 63 and a second inserting hole 64, the upper end of the second threaded hole 63 is communicated with the air inlet 61, the lower end of the second threaded hole 63 is in threaded connection with the outer pipe 41, the upper end of the second inserting hole 64 is communicated with the air outlet 62, and the lower end of the second inserting hole 64 is connected with the inner pipe 42.

The upper end of the handle 6 is fixedly provided with a pressure gauge 7, and the sensing end of the pressure gauge 7 is arranged in the inner tube 42.

The lower end of the cylinder body 1 is fixedly connected with a base 13.

The working principle is as follows:

1) the bidirectional working state is as follows: the rotary knob 51 is rotated to drive the hollow screw 52 to synchronously rotate, the sleeve 53 is controlled to move downwards through the rotation of the hollow screw 52, the deformation amount of the spring 54 is maximized through the downward movement of the sleeve 53, and further the pressure applied to the upper cover sealing ring 55 is maximized, so that the upper air chamber 11 and the valve hole 31 are blocked.

2) The one-way working state is as follows: when the handle 6 is lifted upwards, if the pressure of the upper air chamber 11 is greater than the elastic force of the spring 54, the upper cover sealing ring 55 is pushed to move upwards, and the communication between the upper air chamber 11 and the valve hole 31 is realized.

Example 2:

this example differs from example 1 in that:

the structure of the piston, the linkage pipe and the handle of the utility model can also adopt the piston, the linkage pipe and the handle disclosed in the background technology.

The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.

Claims

1. The utility model provides a high pressure hand power air pump is aerifyd to knob formula, includes stack shell (1), piston (2), upper cover (3) and linkage pipe (4), its characterized in that: the piston (2) is arranged in the barrel body (1) to divide the barrel body (1) into an upper air chamber (11) and a lower air chamber (12), the upper cover (3) is arranged at the upper part of the barrel body (1), the linkage pipe (4) penetrates through the center of the upper cover (3), the lower end of the linkage pipe (4) is fixedly connected with the piston (2), and the upper end of the linkage pipe (4) is provided with a handle (6);

the lower end of the upper cover (3) is in threaded connection with the upper end of the cylinder body (1), and a valve hole (31) is formed in the middle of the upper cover (3);

the upper cover (3) is provided with a switch component (5) for controlling the upper air chamber (11) to be communicated with the outside, the switch component (5) comprises a knob (51), a hollow screw (52), a sleeve (53), an upper cover sealing ring (55) and a sealing sheet (56) which are sequentially sleeved on the linkage pipe from top to bottom, the outer side of the sealing sheet (56) is fixedly connected with the upper end of the linkage pipe (4), the middle part of the sealing sheet (56) is provided with a counter bore (561), the bottom of the counter bore (561) is provided with a through hole (562), the through hole (562) penetrates through the linkage pipe (4) and has a gap with the linkage pipe (4), the upper cover sealing ring (55) is arranged in the counter bore (561), the side wall of the counter bore (561) is provided with a guide groove (563) along the axial direction, the outer side of the sleeve (53) is provided with a guide rib (531) matched with the guide groove (563), and the sleeve (53) is provided with an internal thread, the sleeve (53) is in threaded connection with the hollow screw rod (52), and the knob (51) is fixedly connected with the upper end of the hollow screw rod (52).

2. The knob type inflating high pressure hand pulling air pump according to claim 1, wherein: and a spring (54) is arranged between the upper cover sealing ring (55) and the sleeve (53).

3. The knob type inflating high pressure hand pulling air pump according to claim 1, wherein: the piston (2) comprises an air inlet air guide chamber (21) and an air outlet air guide chamber (22), a first upper valve port (211) and a first lower valve port (212) which are communicated with the air inlet air guide chamber (21), the upper air chamber (11) and the lower air chamber (12) are arranged on the piston (2), a second upper valve port (221) and a second lower valve port (222) which are communicated with the air outlet air guide chamber (22), the upper air chamber (11) and the lower air chamber (12) are arranged, an air inlet breathing valve plate (213) which only allows air to enter the upper air chamber (11) or the lower air chamber (12) from the air inlet air guide chamber (21) is arranged in the first upper valve port (211) and the first lower valve port (212), and an air outlet breathing valve plate (223) which only allows air to enter the air outlet air guide chamber (22) from the upper air chamber (11) or the lower air chamber (12) is arranged in the second upper valve port (221) and the second lower valve port (222).

4. The knob type inflatable high pressure hand air pump according to claim 3, wherein: two first upper valve ports (211), two first lower valve ports (212), two second upper valve ports (221) and two second lower valve ports (222) are arranged.

5. The knob type inflating high pressure hand pulling air pump according to claim 1, wherein: the linkage pipe (4) comprises an outer pipe (41) and an inner pipe (42), the lower end of the outer pipe (41) is communicated with the air inlet and guide chamber (21), the lower end of the inner pipe (42) is communicated with the air outlet and guide chamber (22), an air inlet (61) and an air outlet (62) are respectively arranged on two sides of the handle (6), the upper end of the inner pipe (42) is communicated with the air outlet (62), and the upper end of the outer pipe (41) is communicated with the air inlet (61).

6. The knob type inflating high pressure hand pulling air pump according to claim 1, wherein: and a piston ring (23) is embedded on the outer side of the piston (2).

7. The knob type inflating high pressure hand pulling air pump according to claim 1, wherein: the piston (2) comprises a base (24) and a bottom cover (25) which are bonded with each other, a first threaded hole (241) communicated with the air inlet and guide chamber (21) is formed in the base (24) and connected with the outer pipe (41) through the first threaded hole (241), a first inserting hole (242) communicated with the air outlet and guide chamber (22) is formed in the base (24), and the first inserting hole (242) is connected with the inner pipe (42).

8. The knob type inflating high pressure hand pulling air pump according to claim 1, wherein: the upper end of the handle (6) is fixedly provided with a pressure gauge (7), and the induction end of the pressure gauge (7) is arranged in the inner pipe (42).

9. The knob type inflating high pressure hand pulling air pump according to claim 1, wherein: the handle (6) lower extreme is provided with second screw hole (63) and second spliced eye (64) coaxially, and second screw hole (63) upper end and air inlet (61) intercommunication, second screw hole (63) lower extreme and outer tube (41) threaded connection, second spliced eye (64) upper end and gas outlet (62) intercommunication, second spliced eye (64) lower extreme and inner tube (42) are connected.