CN210714971U

CN210714971U - Bidirectional inflating pump

Info

Publication number: CN210714971U
Application number: CN201921464942.XU
Authority: CN
Inventors: 陈校波; 赵志超; 戴志鹏; 叶峰
Original assignee: Zhejiang Weibang Electromechanical Technology Co ltd
Current assignee: Zhejiang Weibang Electromechanical Technology Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-06-09
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a two-way inflating pump aims at solving two-way manual inflating pump equipment inconvenient, and work efficiency hangs down not enough. The utility model discloses an including the pump body, install the piston ring in the pump body, connect the axle core on the piston ring, be equipped with inlet channel and air outlet channel in the axle core, inlet channel and air outlet channel all link up the upper and lower both ends of axle core, extend pump body and end connection handle on the axle core, piston ring and handle all with axle core welding, be equipped with piston ring intake duct and piston ring gas outlet channel in the piston ring, be equipped with handle air inlet and handle gas outlet on the handle, the piston ring, the handle air inlet all communicates with inlet channel, piston ring gas outlet channel, the handle gas outlet all communicates with air outlet channel.

Description

Bidirectional inflating pump

Technical Field

The utility model relates to an aerating device, more specifically say, it relates to a two-way inflating pump.

Background

At present, the bidirectional manual inflating pump has high inflating efficiency, is convenient to use and carry, and is widely used in the market. The existing bidirectional manual inflating pump has various structures, and an inflating pump handle with one structure is fixedly connected with a shaft core and the shaft core is connected with a piston ring by threads, but the thread directions are not necessarily uniform, and the screwing degrees are different during assembly, so that the air channel opening is not necessarily aligned, the tightness between an air inlet channel and an air outlet channel is poor, two air channels are communicated, and the inflating function is influenced or lost; and the manual assembly efficiency is low due to the threaded connection mode. The fixing between the handle and the shaft core and between the shaft core and the piston ring of the other structure of the inflating pump needs to be performed by punching and then rivet fixing, but the accessories and the assembling procedures are added, so that the product cost is increased. The handle and the shaft core of the inflating pump structure are integrated, so that the assembly of the handle and the shaft core is reduced, and the assembly cost of part of workers and part of accessories is reduced; however, after the handle and the shaft core are integrated, the size of the accessory is increased, the structure of the accessory is also complex, the difficulty of injection molding is increased, and the injection molding manufacturing efficiency is not high; and simultaneously, sealing accessories at two end parts of the shaft core of the integrated grip are also required to be correspondingly added, so that the total number of the accessories of the product is increased, and the assembly is also troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes two-way manual inflating pump equipment is inconvenient, and work efficiency is low not enough, provides a two-way inflating pump, and its equipment is convenient, and equipment work efficiency is high.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a two-way inflating pump, which comprises a pump body, install the piston ring in the pump body, connect the axle core on the piston ring, be equipped with inlet channel and air outlet channel in the axle core, inlet channel and air outlet channel all link up the upper and lower both ends of axle core, extend pump body and end connection handle on the axle core, piston ring and handle all with axle core welding, be equipped with piston ring intake duct and piston ring air outlet channel in the piston ring, be equipped with handle air inlet and handle gas outlet on the handle, the piston ring intake duct, the handle air inlet all communicates with inlet channel, the piston ring air outlet channel, the handle gas outlet all communicates with air.

When the bidirectional inflating pump is used, the handle is pressed downwards, air in a cavity below a piston ring in the pump body enters a piston ring air outlet channel of the piston ring, the air flows through the air outlet channel in the shaft core and then is sent out from a handle air outlet on the handle to be inflated, and fresh air enters from a handle air inlet and enters a cavity above the piston ring in the body through an air inlet channel in the shaft core and the piston ring air inlet channel to be stored. The grip is pulled upwards, air in a cavity above the piston ring in the pump body enters a piston ring air outlet channel of the piston ring, the air flows through an air outlet channel in the shaft core and then is sent out from a grip air outlet on the grip to be inflated, and fresh air enters from the grip air inlet and enters a cavity below the piston ring in the pump body through an air inlet channel in the shaft core and the piston ring air inlet channel to be stored. The shaft core is continuously pulled and inflated. Piston ring and handle all with the axle core welding, fix through the welded mode, connect reliably, the leakproofness is good, have reduced the equipment accessory of product, it is more convenient to assemble, is favorable to improving work efficiency, reduce cost.

Preferably, the welding method of the shaft core and the handle and the welding method of the shaft core and the piston ring are thermal fusion welding or high-frequency ultrasonic welding. The two welding modes are reliable in connection, and the sealing performance is good after connection.

Preferably, the handle is provided with an inserting sleeve, the outer wall of the upper part of the shaft core is provided with an upper positioning convex ring, the inserting sleeve is inserted at the upper end of the shaft core, and the lower end of the inserting sleeve is supported on the upper positioning convex ring; the upper part of the inner wall of the plug bush is provided with a welding convex ring, and the upper end face of the shaft core is attached to the lower end face of the welding convex ring and is welded with the welding convex ring. The splicing sleeve is spliced on the outer wall of the upper part of the shaft core, so that the assembly and the connection are convenient. The upper end face of the shaft core is in end face welding with the lower end face of the welding convex ring, the connection is reliable, and the sealing performance is good.

Preferably, the outer wall of the inserting sleeve is provided with a positioning convex rib, the outer wall of the upper positioning convex ring is provided with an upper positioning convex block, and the lower end of the positioning convex rib is aligned and attached with the upper end of the upper positioning convex block. The arrangement of the positioning convex rib and the upper positioning convex block is convenient for the insertion of the insertion sleeve to align the shaft core, and the insertion position is more accurate.

Preferably, the piston ring is provided with a ventilation sleeve, the outer wall of the lower part of the shaft core is provided with a lower positioning convex ring, the lower end of the shaft core is inserted in the ventilation sleeve, and the lower positioning convex ring is supported on the upper end surface of the ventilation sleeve; the lower part of the inner wall of the ventilation sleeve is provided with a welding convex ring, and the lower end face of the shaft core is attached to the upper end face of the welding convex ring and is welded with the welding convex ring. The lower end of the shaft core is inserted in the ventilation sleeve, so that the assembly and the connection are convenient. The lower end face of the shaft core is in end face welding with the upper end face of the welding convex ring, so that the connection is reliable, and the sealing performance is good.

Preferably, the outer wall of the lower positioning convex ring is provided with a lower positioning convex block, the outer wall of the ventilation sleeve is provided with a positioning convex strip, and the lower end of the lower positioning convex block is aligned and attached to the upper end of the positioning convex strip. The lower positioning convex block and the positioning convex strip are arranged, so that the ventilation sleeve can be aligned to the lower end of the shaft core in the inserting process, and the inserting position is more accurate.

Preferably, a shaft core clapboard which is axially arranged is arranged in the shaft core, the shaft core clapboard divides the interior of the hollow shaft core into an air inlet channel and an air outlet channel, a handle clapboard is arranged in the handle, the handle clapboard divides the inner cavity of the handle into an air inlet cavity and an air outlet cavity, the air inlet cavity is communicated between the air inlet of the handle and the air inlet channel, and the air outlet cavity is communicated between the air outlet of the handle and the air outlet channel; a piston ring partition plate is arranged in the piston ring to divide the interior of the piston ring into a piston ring air inlet channel and a piston ring air outlet channel; the lower end of the handle partition plate is in fit welding with the upper end of the shaft core partition plate, and the lower end of the shaft core partition plate is in fit welding with the upper end of the piston ring partition plate. The upper end of the shaft core clapboard is welded with the handle clapboard, and the lower end of the shaft core clapboard is welded with the piston ring clapboard, so that the connection is reliable, and the sealing performance is good. And the assembly process does not need to consider the sealing property, and only needs to be aligned, thereby greatly facilitating the assembly operation.

Preferably, the upper end of the pump body is connected with the pump cover, the pump cover is provided with a through hole, the through hole is in threaded connection with the positioning sleeve, the shaft core penetrates through the positioning sleeve, the shaft core is sleeved with the sealing ring, and the sealing ring is installed between the end part of the positioning sleeve and the inner wall of the pump cover. The pump cover is convenient for assembling a piston ring, the positioning sleeve has a good positioning effect on the shaft core, and the sealing ring has a good sealing effect on the shaft core.

Compared with the prior art, the beneficial effects of the utility model are that: the bidirectional inflating pump is convenient to assemble and high in assembling work efficiency.

Drawings

Fig. 1 is an exploded view of the present invention;

fig. 2 is a cross-sectional view showing a state where the shaft core is pressed down;

fig. 3 is a cross-sectional view showing a state where the shaft core of the present invention is pulled up;

in the figure: 1. the pump body, 2, the piston ring, 3, the axle center, 4, inlet channel, 5, outlet channel, 6, the handle, 7, the piston ring intake duct, 8, the piston ring outlet channel, 9, the handle air inlet, 10, the handle gas outlet, 11, the grafting cover, 12, go up the location bulge loop, 13, the protruding muscle of location, 14, go up the location lug, 15, the cover of ventilating, 16, lower location bulge loop, 17, lower location lug, 18, the location sand grip, 19, the axle center baffle, 20, the handle baffle, 21, the piston ring baffle, 22, the pump cover, 23, the through-hole, 24, the position sleeve, 25, the sealing ring, 26, the welding bulge loop, 27, the welding bulge loop.

Detailed Description

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example (b): the utility model provides a two-way inflating pump (see attached figure 1 to attached figure 3), including the pump body 1, install piston ring 2 in the pump body, connect the axle core 3 on the piston ring, the outer wall-mounting sealing washer of piston ring, be equipped with inlet channel 4 and air outlet channel 5 in the axle core, inlet channel and air outlet channel all link up the upper and lower both ends of axle core, the axle core upper end extends the pump body and end connection handle 6, piston ring and handle all with axle core welding, the welding mode of axle core and handle and axle core and piston ring is heat fusion welding or high frequency ultrasonic welding. A piston ring air inlet channel 7 and a piston ring air outlet channel 8 are arranged in the piston ring, a handle air inlet 9 and a handle air outlet 10 are arranged on the handle, the piston ring air inlet channel and the handle air inlet are communicated with an air inlet channel, and the piston ring air outlet channel and the handle air outlet are communicated with an air outlet channel.

The handle comprises a pair of handles and a pair of connecting pipes, and the handle air inlet and the handle air outlet are respectively arranged at the opening positions of the two connecting pipes. The handle is internally provided with a handle clapboard 20 which divides the inner cavity of the handle into an air inlet cavity and an air outlet cavity, the air inlet cavity is communicated between the air inlet of the handle and the air inlet channel, and the air outlet cavity is communicated between the air outlet of the handle and the air outlet channel. One connecting pipe is communicated with the air inlet cavity, and the other connecting pipe is communicated with the air outlet cavity. The handle is provided with an inserting sleeve 11, the outer wall of the upper part of the shaft core is provided with an upper positioning convex ring 12, the inserting sleeve is inserted at the upper end of the shaft core, and the lower end of the inserting sleeve is supported on the upper positioning convex ring; the upper part of the inner wall of the plug bush is provided with a welding convex ring 26, and the upper end face of the shaft core is attached to the lower end face of the welding convex ring and is welded with the welding convex ring. The outer wall of the inserting sleeve is provided with a positioning convex rib 13, the outer wall of the upper positioning convex ring is provided with an upper positioning convex block 14, and the lower end of the positioning convex rib is aligned and attached with the upper end of the upper positioning convex block.

The piston ring is provided with an air-vent sleeve 15, the outer wall of the lower part of the shaft core is provided with a lower positioning convex ring 16, the lower end of the shaft core is inserted in the air-vent sleeve, and the lower positioning convex ring is supported on the upper end surface of the air-vent sleeve; the lower part of the inner wall of the ventilation sleeve is provided with a welding convex ring 27, and the lower end face of the shaft core is attached to the upper end face of the welding convex ring and is welded with the welding convex ring. The outer wall of the lower positioning convex ring is provided with a lower positioning convex block 17, the outer wall of the ventilation sleeve is provided with a positioning convex strip 18, and the lower end of the lower positioning convex block is aligned and attached with the upper end of the positioning convex strip.

The shaft core is internally provided with a shaft core clapboard 19 which is arranged axially and divides the hollow shaft core into an air inlet channel and an air outlet channel. A piston ring partition plate 21 is arranged in the piston ring to divide the interior of the piston ring into a piston ring air inlet channel and a piston ring air outlet channel; the lower end of the handle partition plate is in fit welding with the upper end of the shaft core partition plate, and the lower end of the shaft core partition plate is in fit welding with the upper end of the piston ring partition plate. The pump cover 22 is connected to the pump body upper end, is equipped with through-hole 23 on the pump cover, and through-hole internal thread connection position sleeve 24, the axle core runs through the position sleeve, suit sealing ring 25 on the axle core, and the sealing ring is installed between position sleeve tip and pump cover inner wall.

The above-described embodiments are merely preferred and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a two-way inflating pump, which comprises a pump body, install the piston ring in the pump body, connect the axle core on the piston ring, characterized by, be equipped with inlet channel and air outlet channel in the axle core, inlet channel and air outlet channel all link up the upper and lower both ends of axle core, axle core upper end extends pump body and end connection handle, piston ring and handle all with axle core welding, be equipped with piston ring intake duct and piston ring air outlet channel in the piston ring, be equipped with handle air inlet and handle gas outlet on the handle, the piston ring intake duct, the handle air inlet all communicates with inlet channel, the piston ring air outlet channel, the handle gas outlet all communicates with.

2. The bi-directional inflation pump as claimed in claim 1, wherein the core and the grip and the core and the piston ring are welded by thermal fusion welding or high frequency ultrasonic welding.

3. The bidirectional inflating pump as claimed in claim 1, wherein the handle is provided with a plug bush, the outer wall of the upper portion of the shaft core is provided with an upper positioning convex ring, the plug bush is plugged at the upper end of the shaft core, and the lower end of the plug bush is supported on the upper positioning convex ring; the upper part of the inner wall of the plug bush is provided with a welding convex ring, and the upper end face of the shaft core is attached to the lower end face of the welding convex ring and is welded with the welding convex ring.

4. A bi-directional inflation pump as claimed in claim 3, wherein the outer wall of the insertion sleeve is provided with a positioning rib, the outer wall of the upper positioning ring is provided with an upper positioning protrusion, and the lower end of the positioning rib is aligned with and attached to the upper end of the upper positioning protrusion.

5. The bidirectional inflating pump as claimed in claim 1, wherein the piston ring is provided with an air vent bush, the outer wall of the lower portion of the shaft core is provided with a lower positioning convex ring, the lower end of the shaft core is inserted into the air vent bush, and the lower positioning convex ring is supported on the upper end surface of the air vent bush; the lower part of the inner wall of the ventilation sleeve is provided with a welding convex ring, and the lower end face of the shaft core is attached to the upper end face of the welding convex ring and is welded with the welding convex ring.

6. A bidirectional inflation pump as set forth in claim 5, wherein the lower positioning projection is provided on an outer wall of the lower positioning collar, the positioning rib is provided on an outer wall of the air vent sleeve, and a lower end of the lower positioning projection is aligned with and fitted to an upper end of the positioning rib.

7. The bidirectional inflation pump of any one of claims 1 to 6, wherein an axially disposed core partition is provided in the core, the core partition dividing the interior of the hollow core into an inlet channel and an outlet channel, the handle having a handle partition dividing the inner cavity of the handle into an inlet cavity and an outlet cavity, the inlet cavity communicating between the inlet channel and the inlet channel, the outlet cavity communicating between the outlet channel and the outlet channel; a piston ring partition plate is arranged in the piston ring to divide the interior of the piston ring into a piston ring air inlet channel and a piston ring air outlet channel; the lower end of the handle partition plate is in fit welding with the upper end of the shaft core partition plate, and the lower end of the shaft core partition plate is in fit welding with the upper end of the piston ring partition plate.

8. A bidirectional inflating pump as claimed in any one of claims 1 to 6, wherein the pump cover is connected to the upper end of the pump body, a through hole is formed in the pump cover, a positioning sleeve is screwed into the through hole, the shaft core penetrates through the positioning sleeve, and a sealing ring is sleeved on the shaft core and mounted between the end of the positioning sleeve and the inner wall of the pump cover.