CN211975312U

CN211975312U - Inflating device

Info

Publication number: CN211975312U
Application number: CN202020157134.5U
Authority: CN
Inventors: 王罗平
Original assignee: Kunshan Shiquan Plastic Hardware Products Co ltd
Current assignee: Kunshan Shiquan Plastic Hardware Products Co ltd
Priority date: 2020-02-09
Filing date: 2020-02-09
Publication date: 2020-11-20
Anticipated expiration: 2030-02-09

Abstract

The utility model discloses an inflating device, which is suitable for inflating objects to be inflated and comprises an inflating mechanism and a pressure measuring mechanism. The inflating mechanism comprises an inflating unit and a handle unit, wherein the inflating unit defines an inflating space, and the handle unit is connected with the inflating unit and extends along the length direction. The pressure measuring mechanism is mounted on the handle unit and comprises a flow guide unit defining a flow guide channel communicated with the inflating space and a measuring unit having a free end capable of displacing in the length direction when pushed by the gas from the flow guide channel. The novel design of the pressure measuring mechanism is utilized to facilitate the user to read the pressure value of the object to be inflated, and the pressure measuring mechanism is embedded in the handle unit along the length direction, so that the volume of the inflating device can be relatively reduced, and the appearance is more concise.

Description

Inflating device

Technical Field

The utility model relates to an inflater especially relates to a device of inflating of a pressure value convenient to watch an object of aerifing.

Background

Referring to fig. 1, a conventional inflator 1 includes an inflator 11 adapted to inflate an object to be inflated (not shown), and a disk-shaped pressure gauge 12 installed at a bottom side of the inflator 11 to measure a pressure in the object to be inflated. The pumping mechanism 11 includes a pumping unit 111 having a bottom side connected to the pressure gauge 12, a handle unit 112 connected to a top side of the pumping unit 111, and a pedal unit 113 connected to a bottom side of the pumping unit 111.

The user steps on the pedal unit 113 with two feet and pulls the handle unit 112 up and down, so that the object to be inflated can be inflated by the inflating unit 111; and the pressure gauge 12 can be used to measure the internal pressure of the object to be inflated while inflating.

However, since the pressure gauge 12 is located at the bottom side of the pumping unit 111, the user normally pumps air in a standing position, and a pointer of the pressure gauge 12 indicates the measured pressure value in a rotating manner. Therefore, when it is necessary to clearly know the value displayed on the pressure gauge 12, the user usually needs to bend down to observe the offset angle of the pointer within a proper visual focal distance (e.g., 30 cm to 50 cm) and to read the pressure value displayed on the pressure gauge 12, which is inconvenient in use.

Disclosure of Invention

An object of the utility model is to provide an at least can overcome the device of inflating of the shortcoming of background art.

The utility model discloses an inflating device is applicable to and inflates to an object of inflating, should inflate the device and contain one and inflate the mechanism, reach a pressure measuring mechanism.

The inflating mechanism comprises an inflating unit defining an inflating space and a handle unit connected with the inflating unit and extending along a length direction. The inflating space is provided with an inflating opening which is suitable for inflating a gas into the object to be inflated.

The pressure measuring mechanism is arranged on the handle unit and comprises a flow guide unit which defines a flow guide channel communicated with the inflating space and a measuring unit which is provided with a free end part capable of displacing along the length direction relative to the flow guide unit when being pushed by the gas from the flow guide channel.

The inflating device, the pressure measuring mechanism further includes an indicating unit extending along the length direction and indicating a position of the free end of the measuring unit.

The inflating device, the measuring unit of the pressure measuring mechanism has an elastic member capable of stretching when pushed.

The inflating device, the measuring unit of the pressure measuring mechanism further has a plug member connected to the elastic member and having a fixed end portion that is not displaced relative to the flow guide unit.

Inflating device, this water conservancy diversion unit of this pressure measurement mechanism include that one defines a holding space's that this unit of measurationing of holding casing pipe spare, and one defines the water conservancy diversion pipe fitting of this water conservancy diversion passageway, this water conservancy diversion passageway have one with the income gas pocket of this space intercommunication of inflating, and one with the gas guide hole of this holding space intercommunication.

Inflating device, should inflate the unit should inflate the space and extend along an axis that becomes angle with this length direction, should go into the gas pocket and be located this space top of inflating of this water conservancy diversion passageway, and extend along this axis.

Inflating device, this unit of measurationing of this pressure measurement mechanism is including setting up in this elastic component and a piston spare of this accommodation space of this casing spare, this piston spare is connected in this elastic component to have and can be by the interlock and this free tip of displacement when this elastic component atress and flexible.

Inflating device, this sleeve pipe spare of this water conservancy diversion unit is transparent tubulose and has an outer peripheral face, this indicating unit of this pressure measurement mechanism includes one and sets up in this outer peripheral face of this sleeve pipe spare and have the graduation apparatus of a plurality of scales, this handle unit of this pressure measurement mechanism defines out a window of looking, this window of looking is used for watching the position of this free tip of this piston spare for the scale of this graduation apparatus through this sleeve pipe spare.

Inflating device, this sleeve pipe spare of this water conservancy diversion unit is transparent tubulose, this handle unit of this pressure measurement mechanism includes that one defines out this accommodation space and a sight window and has the shell of a surface, this indicating unit of this pressure measurement mechanism includes one sets up in this surface of this shell and has the graduation apparatus of a plurality of scales, should look the position of this free tip for the scale of this graduation apparatus that the window is used for watching this piston spare through this sleeve pipe spare.

Inflating device, this sleeve pipe spare of this water conservancy diversion unit is transparent tubulose, this handle unit of this pressure measurement mechanism defines this accommodation space and a window of looking, this instruction unit of this pressure measurement mechanism includes that one sets up in this accommodation space and lies in the plate body between this sleeve pipe spare and this window of looking of this water conservancy diversion unit, and one sets up in this plate body and has the graduation apparatus of a plurality of scales, this window of looking is used for watching the position of this free tip of this piston spare for the scale of this graduation apparatus through this plate body and this sleeve pipe spare.

The beneficial effects of the utility model reside in that: by utilizing the novel design of the pressure measuring mechanism, particularly the indication unit extends along the length direction, a user can easily and intuitively read the pressure value of the object to be inflated along a straight line, and the pressure measuring mechanism is embedded in the handle unit along the length direction, so that the space for additionally arranging the pressure gauge can be saved.

Drawings

Other features and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of a known inflator;

FIG. 2 is a perspective view illustrating a first embodiment of the pump of the present invention and an inflation tube;

FIG. 3 is a top view of the first embodiment;

FIG. 4 is an exploded perspective view of the first embodiment;

FIG. 5 is a partial exploded perspective view of the first embodiment;

FIG. 6 is a partial cross-sectional view of the first embodiment;

FIG. 7 is a perspective view illustrating a second embodiment of the pump of the present invention and the inflation tube;

FIG. 8 is a top view of the second embodiment;

FIG. 9 is a partial exploded perspective view of the second embodiment;

FIG. 10 is a perspective view illustrating a third embodiment of the pump of the present invention and the inflator;

FIG. 11 is a top view of the third embodiment;

fig. 12 is a partial exploded perspective view of the third embodiment.

Detailed Description

Before the present invention is described in detail, it should be noted that in the following description, like elements are represented by like reference numerals.

Referring to fig. 2 and 3, a first embodiment of the present invention is suitable for inflating an object to be inflated (e.g., a tire, an inflatable cushion, an inflatable pool) through an inflation tube 9, and comprises an inflating mechanism 2 and a pressure measuring mechanism 3 installed on the inflating mechanism 2.

Referring to fig. 4 to 6, the pumping mechanism 2 includes a pumping unit 21 extending along an axis L1, a handle unit 22 connected to a top side of the pumping unit 21 and extending along a length direction L2 perpendicular to the axis L1, and a switching unit 23 rotatably mounted to an exterior of the pumping unit 21.

The pumping unit 21 includes a cylinder 211 defining a pumping space 214 extending along the axis L1, a piston structure 212 located in the pumping space 214, and two pedals 213 extending horizontally outward from the bottom side of the cylinder 211. The pumping space 214 of the cylinder holder 211 has a through hole 215 located on the axis L1, and a relief hole 200. The piston structure 212 includes a piston assembly 216 disposed in the pumping space 214, and a piston rod 217 passing through the through hole 215 of the pumping space 214 and driving the piston assembly 216 to move up and down.

The piston assembly 216 has a piston 51 connected to the bottom end of the piston rod 217 and dividing the pumping space 214 into a first air chamber 218 and a second air chamber 219, two first valve elements 52 mounted in the piston 51, and two second valve elements 53 (one shown in the figure) mounted in the piston 51. The piston 51 defines a first chamber 511 and a second chamber 512 that communicate the first air chamber 218 and the second air chamber 219. The first valve element 52 and the second valve element 53 are used to open and close the first valve chamber 511 and the second valve chamber 512, respectively. Since the piston structure 212 is not the main point of the present invention, detailed structure is not described in detail. The piston rod 217 has a first sleeve 61 located between the handle unit 22 and the piston 51 and defining a first inflation channel 611, and a second sleeve 62 located between the handle unit 22 and the piston 51 and sleeved on the first sleeve 61 and defining a second inflation channel 621 together with the first sleeve 61. The first pumping channel 611 communicates with the first valve chamber 511, and the second pumping channel 621 communicates with the second valve chamber 512. The inflating space 214 further has an inflating opening 210 communicating with the first inflating channel 611 and adapted to inflate a gas into the object to be inflated through the inflating tube 9.

The handle unit 22 is connected to the piston structure 212 of the inflating unit 21 and includes a housing 221 extending along the length direction L2 and having an outer surface 222. The housing 221 defines a mounting space 223 extending along the length direction L2, and a viewing window 224 for viewing the mounting space 223. The housing 221 is further divided into two handle portions 225 extending from the axis L1 along the length direction L2 for users to hold.

The switching unit 23 is rotatably sleeved on the cylinder seat 211 and can rotate between a two-way inflation position for closing the air release hole 200 and a one-way inflation position for opening the air release hole 200 relative to the cylinder seat 211.

The pressure measuring mechanism 3 is installed in the installation space 223 of the handle unit 22, and includes a flow guiding unit 31, a measuring unit 32 located in the flow guiding unit 31, and an indicating unit 33.

The flow guiding unit 31 includes a sleeve 311 having a transparent tubular shape and defining a receiving space 313 for receiving the measuring unit 32 and an outer peripheral surface 314, and a flow guiding pipe 312 extending along the length direction L2 and defining a flow guiding channel 315 communicating with the inflating space 214. The flow guiding channel 315 of the flow guiding tube 312 has an air inlet hole 316 located above the inflating space 214, communicating with the through hole 215 of the inflating space 214 and extending along the axis L1, and an air guiding hole 317 communicating with the accommodating space 313 and laterally staggered from the air inlet hole 316. The receiving space 313 has a mounting opening 318 at one side edge thereof.

The measuring unit 32 includes an elastic member 321 disposed in the receiving space 313 of the sleeve 311 and having a first end 324 and a second end 325 spaced from each other along the length direction L2, an end plug 322 sealing the mounting opening 318 of the receiving space 313 and penetrating the first end 324 of the elastic member 321, and a piston 323 disposed in the receiving space 313 of the sleeve 311 and connected to the second end 325 of the elastic member 321 to be linked by the elastic member 321. The end plug 322 has a fixed end 326 that is fixed against displacement relative to the sleeve member 311, so that the first end 324 of the resilient member 321 is also fixed against displacement. When the elastic member 321 is forced to expand and contract, the second end 325 moves relative to the sleeve member 311. The piston 323 has a free end 327 that can be moved by the second end 325 when the elastic element 321 is forced to expand and contract.

The indicating unit 33 includes a scale 331 disposed on the outer peripheral surface 314 of the sleeve member 311, extending along the length direction L2, and having a plurality of scales 332. The scale 331 faces the viewing window 224 of the grip unit 22 and is used to indicate a position of the free end portion 327 of the piston 323 relative to the scale 332.

When the air pump is used for pumping air to the object to be inflated, the switching unit 23 is firstly rotated to the bidirectional air pumping position; then, a user presses the pedals 213 of the inflating unit 21 with his feet, and holds the handle parts 225 of the grip unit 22 with his hands, respectively, to perform an inflating operation. When the user raises or lowers the piston structure 212, the volumes of the first air chamber 218 and the second air chamber 219 are relatively reduced and expanded, so that a pressure difference is generated between the first air chamber 218 and the second air chamber 219, the first valve element 52 is moved down or the second valve element 53 is raised, after the gas enters the second inflation channel 612 from the gap between the handle unit 22 and the piston rod 217, the gas enters the first inflation channel 611 through the first air chamber 218 and the first valve element 52 or the second air chamber 219 and the second valve element 53, and the gas is inflated into the object to be inflated through the inflation port 210, so as to inflate the object to be inflated in two directions; or alternatively, the switching unit 23 is rotated to the one-way inflation position, and the object to be inflated is inflated only when the piston structure 212 descends, and the object to be inflated is not inflated when the piston structure 212 is pulled upwards.

In the above-mentioned inflating process, the pressure measuring mechanism 3 can be used to measure the air pressure of the object to be inflated. The gas in the pumping space 214 of the pumping unit 21 enters the flow guiding channel 315 through the gas inlet 316 of the flow guiding tube 312, and then enters the accommodating space 313 through the gas outlet 317 to push the free end portion 327 of the piston member 323, so that the free end portion 327 can displace along the length direction L2 relative to the sleeve member 311, until the thrust of the gas to the measuring unit 32 and the elastic force of the elastic member 321 reach a balance, that is, when the gas pressure and the pressure of the elastic member 321 to the piston member 323 reach a balance, the free end portion 327 stops displacing. At this time, the free end portion 327 can be used as an index, and the position of the free end portion 327 relative to the scale 332 of the scale 331 can be viewed through the sleeve member 311 from the viewing window 224 of the grip unit 22. Since the inflating space 214 is communicated with the accommodating space 313 and the inflating space 214 is also communicated with the object to be inflated through the inflating opening 210, the air pressure of the accommodating space 313 is equal to the air pressure of the object to be inflated, so the scale 331 can be used as a pressure gauge, and the position of the free end portion 327 of the piston 323 can indicate a pressure value measured in the object to be inflated.

Referring to fig. 7 to 9, a second embodiment of the inflation device of the present invention is similar to the first embodiment, and the difference is in the indication unit 33.

In the present embodiment, the scale 331 of the indicating unit 33 is disposed on the outer surface 222 of the housing 221 of the handle unit 22, and the position of the free end portion 327 of the piston member 323 relative to the scale 332 of the scale 331 can be viewed through the sleeve member 311 from the viewing window 224, so as to indicate the pressure value measured by the object to be inflated.

Referring to fig. 10 to 12, a third embodiment of the inflation device of the present invention is similar to the first embodiment, and the difference is in the indication unit 33.

In the present embodiment, the indicating unit 33 includes a transparent and elongated plate body 333 disposed in the installation space 223 of the handle unit 22 and located between the sleeve 311 and the viewing window 224, and the scale 331 disposed on the plate body 333. By means of the indicating unit 33, the position of the free end portion 327 of the piston 323 relative to the scale 332 of the scale 331 can also be viewed from the viewing window 224 to indicate the pressure value measured by the object to be inflated.

To sum up, the utility model discloses the device of inflating utilizes this pressure measurement mechanism 3's novel design, and especially this indicating unit 33 extends along this length direction L2, supplies the user to read the pressure value of this object of waiting to aerify with the straight line direction directly perceivedly easily, and this pressure measurement mechanism 3 buries underground in this handle unit 22 along this length direction L2, also can save the space that sets up this manometer in addition, makes the outward appearance of this device of inflating more succinct. In addition, if the pressure measuring mechanism 3 is to adjust the pressure range, it only needs to replace the elastic member 321 with specific elastic coefficient and the scale 331 of the indicating unit 33, and it is not necessary to adjust the structure of each component greatly, so the objective of the present invention can be achieved.

The above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still within the scope of the present invention.

Claims

1. The utility model provides an inflating device, is applicable to and treats the inflation of aerifing the thing, should inflate the device and contain the mechanism of inflating, should inflate the mechanism and including the unit of inflating that defines out the space of inflating, and connect in this unit of inflating and along the handle unit of length direction extension, should inflate the space and have and be applicable to and fill into this opening of inflating of treating the thing, its characterized in that with gas: the inflating device further comprises a pressure measuring mechanism, wherein the pressure measuring mechanism is installed on the handle unit and comprises a flow guide unit and a measuring unit, the flow guide unit is provided with a flow guide channel communicated with the inflating space, and the measuring unit is provided with a free end portion capable of moving along the length direction relative to the flow guide unit when being pushed by the gas from the flow guide channel.

2. An inflator according to claim 1, wherein: the pressure measuring mechanism further comprises an indicating unit which extends along the length direction and is used for indicating the position of the free end part of the measuring unit.

3. An inflator according to claim 1, wherein: the measuring unit of the pressure measuring mechanism is provided with an elastic piece which can stretch when pushed.

4. An inflator according to claim 3, wherein: the measuring unit of the pressure measuring mechanism is also provided with a plug piece which is connected with the elastic piece and is provided with a fixed end part which is fixed and does not move relative to the flow guide unit.

5. An inflator according to claim 3, wherein: the flow guide unit of the pressure measuring mechanism comprises a sleeve piece defining a containing space for containing the measuring unit and a flow guide pipe piece defining a flow guide channel, wherein the flow guide channel is provided with an air inlet communicated with the inflating space and an air guide hole communicated with the containing space.

6. An inflator according to claim 5, wherein: the air inflating space of the air inflating unit extends along an axis which forms an angle with the length direction, and the air inlet hole of the flow guide channel is positioned above the air inflating space and extends along the axis.

7. An inflator according to claim 5, wherein: the measuring unit of the pressure measuring mechanism comprises an elastic piece and a piston piece which are arranged in the containing space of the sleeve piece, wherein the piston piece is connected with the elastic piece and is provided with a free end part which can be linked and displaced when the elastic piece is stressed to stretch.

8. An inflator according to claim 7, wherein: the sleeve piece of the flow guide unit is transparent and tubular and is provided with an outer peripheral surface, the indicating unit of the pressure measuring mechanism comprises a dial gauge which is arranged on the outer peripheral surface of the sleeve piece and is provided with a plurality of scales, the grip unit of the pressure measuring mechanism defines a view window, and the view window is used for viewing the position of the free end part of the piston piece relative to the scales of the dial gauge through the sleeve piece.

9. An inflator according to claim 7, wherein: the casing piece of this water conservancy diversion unit is transparent tubulose, and this handle unit of this pressure measurement mechanism is including defining out this accommodation space and view window and having the shell of surface, and this indicating unit of this pressure measurement mechanism is including setting up in this surface of this shell and having the graduation of a plurality of scales, and this view window is used for watching the position of this free end of this piston piece for the scale of this graduation through this casing piece.

10. An inflator according to claim 7, wherein: the casing piece of this water conservancy diversion unit is transparent tubulose, and this holding unit of this pressure measurement mechanism defines out this accommodation space and window, and this instruction unit of this pressure measurement mechanism is including setting up in this accommodation space and being located the plate body between this casing piece and this window of this water conservancy diversion unit, and set up in this plate body and have the graduation of a plurality of scales, and this window is used for watching the position of this free end of this piston spare for the scale of this graduation through this plate body and this casing piece.