CN201763574U

CN201763574U - Novel inflation pump

Info

Publication number: CN201763574U
Application number: CN2010205201428U
Authority: CN
Inventors: 沈世平
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-03
Filing date: 2010-09-03
Publication date: 2011-03-16
Anticipated expiration: 2020-09-03

Abstract

The utility model relates to a novel inflation pump, comprising a rack, a motor, a gear set which is driven by the motor to rotate, an eccentric cam and a cylinder, wherein the gear set is installed in the rack and the eccentric cam which is adjacent to the rack and located at the external of the rack is connected with the gear set via a connecting shaft. The novel inflation pump is characterized in that an installation groove is also arranged in the rack, a bearing is accommodated in the installation groove, and the connecting shaft penetrates through a shaft hole of the bearing and is connected with the eccentric cam and the gear set. Preferably, the outer side of the eccentric cam is provided with a sound cancelling structure in a covering and buckling manner. Compared with the prior art, the novel inflation pump of the utility model makes the operation of the connecting shaft more stable by the arrangement of the bearing. The connecting shaft is not damaged even during the long-term operation, thereby prolonging the service lifetime of the inflation pump. Meanwhile, as the outer side of the eccentric cam is equipped with a cover body which covers the eccentric cam therein, the operating noise of the inflation pump is effectively reduced.

Description

A kind of aerated pump

Technical field

The utility model relates to gas-filled pump, specifically refers to a kind of long service life, the aerated pump that noise is low.

Background technique

Along with the development of industrial technology and the raising of people's living standard, various vehicle tyres and inflatable product are more and more, also arise at the historic moment therefore for the various gas-filled pumps of these product inflations.Existing gas-filled pump generally includes support, rack-mount motor, eccentric cam and cylinder; Described motor is connected one with support, and described motor is by gear train transmission eccentric cam; Directly connect by coupling shaft between described eccentric cam and the gear train; Described eccentric cam is positioned at the outside of support; The connecting rod of cylinder connects the eccentric shaft of cam, and the eccentric rotary of cam is converted to the to-and-fro motion of connecting rod, thereby drives the to-and-fro motion of cylinder cap, produces gas, discharges from the pore of housing to charge in the tire wait inflatable object.

In the existing gas-filled pump, because motor and support link into an integrated entity, motor and gear train all are positioned at the installing space of support, and consider that the flexibility of rotation has been arranged on eccentric cam in the outside of support, therefore, the coupling shaft of connection eccentric cam and gear train has relative long length.Like this, during work, this coupling shaft is not owing to support, and its transmission is very unstable; Especially after working long hours, this situation is especially obvious, thereby has lost the working life of gas-filled pump.In addition, generally, eccentric cam and motor are arranged on the bottom of support, and cylinder then is arranged on the top of support, with switching that makes things convenient for moving direction and the compact structure that makes gas-filled pump.Gas-filled pump of the prior art, the component of each motion class are all exposed outside, and during work, motor, eccentric cam all can high speed rotating, produce bigger noise; The connecting rod of cylinder and the motion of cylinder cap simultaneously also can produce noise, and surrounding environment is caused noise pollution.

Summary of the invention

Technical problem to be solved in the utility model is that the present situation at prior art provides a kind of and operates steadily, the aerated pump of long service life.

Another technical problem to be solved in the utility model is that the present situation at prior art provides a kind of noise low aerated pump.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: this aerated pump, comprise cylinder, piston, support, motor, eccentric cam, and it is characterized in that:

Also be provided with mounting hole in the described support, be equipped with bearing in the mounting hole, make coupling shaft pass described bearing and connect eccentric cam and motor-driven gear output terminal.

Described support side is fixed with cover body, thereby forms the space of ccontaining setting-up eccentricity cam and piston brace rod.

Have the first ring limit of evagination and sealing on the end face of described cover body, the end face of this first ring limit and described cover body constitutes groove, and the bottom surface of this groove is provided with air hole, and flexible ventilative piece is embedded in this groove; Described first ring is provided with outside the limit the capping of this groove button cover in it.

Also be provided with the second ring limit of sealing on the end face of described cover body in the periphery on the described first ring limit, the periphery wall on this second ring limit is provided with screw thread; Described capping is cylindric, also is provided with screw thread on the inner circle wall of capping; Described closure threads connects the described second ring limit, and the end face of described capping is provided with pore.

The ventilative piece of described flexibility is a sponge block.

In above-mentioned each scheme, described gear can adopt gear shift or worm-and-wheel gear.

Compared with prior art, the utility model makes that by the setting of bearing the operation of coupling shaft is more steady, even long-play also can not damage coupling shaft, thereby has prolonged the working life of gas-filled pump; Simultaneously since in the eccentric cam arranged outside with its cover cap at interior cover body, effectively reduce the operating noise of gas-filled pump; Especially the setting of capping and flexible ventilative piece, under the prerequisite of cover body blocking noise, the noise that has further blocked and sent during soft gas-filled pump work, noise reduction further improves.

Description of drawings

Fig. 1 is the floor map of the utility model embodiment assembly structure

Fig. 2 is the sectional view along A-A line among Fig. 1;

Fig. 3 is the schematic perspective view of the utility model embodiment decomposition texture.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1 to Figure 3, this aerated pump comprises:

Support 1 is used to locate following each component; Be provided with in the support 1 following motor 8 and the installing space of gear train 9 and the mounting groove 11 that is used for ccontaining following bearing 10 are installed.

Motor 8 is arranged in the support 1 interior installing space, links into an integrated entity with support 1;

Gear train 9, the output shaft of connection motor 8 is in the installing space in motor 8 is installed in support 1;

Eccentric cam 2, the right flank of close support 1 is installed and is positioned at outside the support 1;

Bearing 10 is contained in the mounting groove 11 in the support 1;

Coupling shaft 20 passes the axis hole of bearing 10, and its two ends are the output gear and the eccentric cam 2 of connection gear group respectively.

Cylinder 3 is arranged on the top of support 1, and is positioned at the top of eccentric cam 2; The eccentric shaft of eccentric cam 2 connects the connecting rod of cylinder 3, and this connecting rod is converted to the to-and-fro motion of connecting rod with the rotation of eccentric cam, thereby reaches the purpose of inflation.

Cover body 5, its end is connected with support 1, cover body 5 and the cavity that forms ccontaining eccentric cam 2 after support 1 is connected between the two.Have circle first flanging 51, the first flangings 51 of evagination and sealing and the end face formation groove 52 of described cover body on the end face of cover body 5, the bottom surface of groove 52 is provided with air hole 53.Described first flanging is provided with the capping of this groove button cover in it.On the end face of cover body, the periphery of first flanging 51 also is provided with between circular second flanging, 54, the first flangings 51 and second flanging 54 and is spaced a distance; The periphery wall of second flanging 54 is provided with screw thread.

Sponge block 6 is embedded in groove 52.

Capping 7 is tubbiness, and present embodiment adopts nylon material to prepare capping 7; The inner circle wall that capping is is provided with and the suitable screw thread of the second flanging periphery wall, and capping 7 is spirally connected behind second flanging 54, be about to first flanging 51, second flanging 54 and sponge block 6 all cover be buckled in the capping 7.

During use, because the carrying of bearing 10, the operation of coupling shaft 20 is very steady, has both made long-time inflation, also can not lose coupling shaft; Simultaneously because stopping of cover body 5, sponge block 6 and capping 7 effectively reduces noise.

Claims

1. an aerated pump comprises cylinder, piston, support, motor, eccentric cam, it is characterized in that:

2. aerated pump according to claim 1 is characterized in that the support side is fixed with cover body, thereby forms the space of ccontaining setting-up eccentricity cam and piston brace rod.

3. aerated pump according to claim 2, it is characterized in that having on the end face of described cover body the first ring limit of evagination and sealing, the end face of this first ring limit and described cover body constitutes groove, and the bottom surface of this groove is provided with air hole, and flexible ventilative piece is embedded in this groove; Described first ring is provided with outside the limit the capping of this groove button cover in it.

4. aerated pump according to claim 3 is characterized in that also being provided with in the periphery on the described first ring limit on the end face of described cover body the second ring limit of sealing, and the periphery wall on this second ring limit is provided with screw thread; Described capping is cylindric, also is provided with screw thread on the inner circle wall of capping; Described closure threads connects the described second ring limit, and the end face of described capping is provided with pore.

5. aerated pump according to claim 4 is characterized in that the ventilative piece of described flexibility is a sponge block.

6. according to the described aerated pump of any claim of claim 1～5, it is characterized in that described gear adopts gear shift or worm-and-wheel gear.