CN210223280U

CN210223280U - Simple inflator model for teaching

Info

Publication number: CN210223280U
Application number: CN201921063643.5U
Authority: CN
Inventors: Lilong Liu; 刘利龙; Yan Deng; 邓炎; Peng Zhou; 周鹏
Original assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Current assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-03-31
Anticipated expiration: 2029-07-09

Abstract

The utility model discloses a simple inflator model for teaching in the technical field of teaching aids, which comprises a first air chamber, a first connecting chamber is screwed on the right part of the inner wall of the first air chamber, a ventilation chamber is screwed on the right part of the inner chamber of the first connecting chamber, a second air chamber and an extension chamber are respectively arranged on the upper part and the lower part of the right wall of the ventilation chamber, a second connecting chamber is screwed on the right part of the inner chamber of the second air chamber, a piston cylinder is screwed on the right part of the inner chamber of the extension chamber, a piston is clamped in the inner chamber of the piston cylinder, a piston rod is arranged on the right wall of the piston, check valves are respectively clamped in the inner chambers of the first air chamber and the second air chamber, each check valve comprises a support frame, a valve rod is clamped in the inner chamber of the support frame, a flap and a flap limit bolt are respectively arranged at the two ends of the valve rod, a connecting spring is sleeved on the outer wall of the valve rod, the device can change the air inlet and, the students can conveniently know the working principle of the air pumping cylinder and the air pump.

Description

Simple inflator model for teaching

Technical Field

The utility model discloses a simple and easy inflator model is used in teaching specifically is teaching aid technical field.

Background

The air pump and the inflator pump are composed of a cylinder, a piston rod, a socket piece and the like. When the piston is pulled upwards, the volume of air below the piston is increased, the pressure intensity is reduced, and the air above the piston is extruded to the lower part from the periphery of the rubber bowl; when the piston is pressed downwards, the volume of air below the piston is reduced, the pressure intensity is increased, and the rubber bowl is tightly pressed against the cylinder wall so that air is not leaked to the upper part of the piston.

In primary and secondary schools and major and secondary school teaching, when explaining the air cylinder principle, most of the existing air cylinders are difficult to disassemble, and students are difficult to understand the air cylinder principle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple and easy inflator model is used in teaching and manufacturing method to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a simple inflator model for teaching, which comprises a first air chamber, wherein the right part of the inner wall of the first air chamber is screwed with a first connecting chamber, the right part of the inner cavity of the first connecting bin is in threaded connection with a ventilation bin, the upper part and the lower part of the right wall of the ventilation bin are respectively provided with a second ventilation bin and an extension bin, the right part of the inner cavity of the second air bin is screwed with a second connecting bin, the right part of the inner cavity of the extension bin is screwed with a piston cylinder, a piston is clamped in the inner cavity of the piston cylinder, a piston rod is arranged on the right wall of the piston, one end of the piston rod penetrates through the right wall of the piston cylinder, the inner cavities of the first air bin and the second air bin are respectively clamped with a one-way valve which comprises a supporting frame, a valve rod is clamped in the inner cavity of the supporting frame, a valve and a valve limit bolt are respectively arranged at the two ends of the valve rod, the outer wall of the valve rod is sleeved with a connecting spring, and two ends of the connecting spring are respectively contacted with the outer walls of the valve limiting bolt and the supporting frame.

Preferably, the ventilation bin, the second ventilation bin and the extension bin are integrally formed in an injection molding mode.

Preferably, the joints of the first air bin and the first connecting bin, the first connecting bin and the air exchange bin, the second air bin and the second connecting bin, the extending bin and the piston cylinder are provided with sealing gaskets.

Preferably, the support frame all is provided with the sealing washer with the inner wall junction in first gas storehouse and second gas storehouse.

Preferably, one end of the piston rod is fixedly provided with a pull ring.

Compared with the prior art, the beneficial effects of the utility model are that: first gas storehouse, second gas storehouse, piston end and the equal split of check valve in this model make the student know the exhaust column structure through the split equipment, can change the direction of admitting air and giving vent to anger through the direction of changing two sets of check valves, and the student of being convenient for knows the flap technique, and the student of being convenient for knows the theory of operation of exhaust column and inflater.

Drawings

FIG. 1 is a schematic front sectional view of a simple inflator model for teaching of the present invention;

FIG. 2 is a schematic view of the check valve of the present invention;

fig. 3 is a left side view of the support frame of the present invention.

In the figure: 100 first gas bins, 110 first connecting bins, 120 gas exchange bins, 200 second gas bins, 210 second connecting bins, 300 extension bins, 310 piston cylinders, 320 pistons, 330 piston rods, 400 one-way valves, 410 valve rods, 420 supporting frames, 430 valve limiting bolts, 440 valves and 450 connecting springs.

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.

The utility model provides a simple and easy inflator model for teaching, including first air chamber 100, the inner wall right part spiro union of first air chamber 100 has first connection storehouse 110, the inner chamber right part spiro union of first connection storehouse 110 has the storehouse of taking a breath 120, the right wall of the storehouse of taking a breath 120 is provided with second air chamber 200 and extension storehouse 300 from top to bottom respectively, the inner chamber right part spiro union of second air chamber 200 has second connection storehouse 210, the inner chamber right part spiro union of extension storehouse 300 has piston cylinder 310, the inner chamber joint of piston cylinder 310 has piston 320, the right wall of piston 320 is installed piston rod 330, one end of piston rod 330 runs through the right wall of piston cylinder 310, the inner chambers of first air chamber 100 and second air chamber 200 all have joint check valve 400, check valve 400 includes support frame 420, the inner chamber joint of support frame 420 has valve rod 410, valve rod 440 and valve flap stop cock 430 are installed respectively at the both ends of valve rod 410, the outer wall of valve rod 410 has cup jointed connection spring 450, both ends of the connection spring 450 are in contact with the flapper stopper 430 and the outer wall of the support bracket 420, respectively.

Example 1

The method comprises the following steps: assembling the check valve 400, sleeving the support frame 420 on the outer wall of the valve rod 410, connecting one end of the valve rod 410 with the valve 440, installing the connecting spring 450 on the outer wall of one end of the valve rod 410, and installing the valve limiting bolt 430 at one end of the valve rod 410 with the connecting spring 450, so that the connecting spring 450 is positioned between the support frame 420 and the valve limiting bolt 430;

step two: installing a group of check valves 400 in the inner cavity of the first air bin 100, wherein the valve 440 of the check valve 400 in the first air bin 100 is located in the inner cavity of the first connection bin 110, screwing the first air bin 100 with the first connection bin 110, and connecting the first connection bin 110 with one end of the ventilation bin 120;

step three: a group of check valves 400 are arranged in the inner cavity of the second air chamber 200, the valve 440 of the check valve 400 in the second air chamber 200 is positioned in the inner cavity of the second connecting chamber 210, and one end of the second air chamber 200 is connected with one end of the second connecting chamber 210;

step four: the piston end is assembled, the piston rod 330 is inserted into the piston cylinder 310, one end of the piston rod 330 is connected to the piston 320, and one end of the piston cylinder 310 is connected to the extension chamber 300 at the end of the ventilation chamber 210.

The first air chamber 100 is an air suction end, and the second air chamber 200 is an air discharge end, and the device is in an air pump cylinder mode at this time.

Example 2

step two: installing a group of check valves 400 in the inner cavity of the first air bin 100, wherein the valve 440 of the check valve 400 in the first air bin 100 is located in the inner cavity of the first air bin 100, screwing the first air bin 100 with the first connecting bin 110, and connecting the first connecting bin 110 with one end of the ventilation bin 120;

step three: a group of check valves 400 are arranged in the inner cavity of the second air chamber 200, the valve 440 of the check valve 400 in the second air chamber 200 is positioned in the inner cavity of the second air chamber 200, and one end of the second air chamber 200 is connected with one end of the second connecting chamber 210;

The first air chamber 100 is the inflation end and the second air chamber 200 is the suction end, and the device is in inflator mode.

While the invention has been described above with reference to certain embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the various embodiments disclosed herein can be used in any combination with one another, and the description of such combinations that is not exhaustive in this specification is merely for brevity and resource saving. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a simple and easy inflator model is used in teaching which characterized in that: including first gas storehouse (100), the inner wall right part spiro union of first gas storehouse (100) has first connection storehouse (110), the inner chamber right part spiro union of first connection storehouse (110) has ventilation storehouse (120), the right wall in ventilation storehouse (120) is provided with second gas storehouse (200) and extension storehouse (300) respectively from top to bottom, the inner chamber right part spiro union of second gas storehouse (200) has second connection storehouse (210), the inner chamber right part spiro union of extension storehouse (300) has piston section of thick bamboo (310), the inner chamber joint of piston section of thick bamboo (310) has piston (320), piston rod (330) is installed to the right wall of piston (320), the right wall of piston section of thick bamboo (310) is run through to the one end of piston rod (330), the inner chamber of first gas storehouse (100) and second gas storehouse (200) all is clamped there is check valve (400), check valve (400) includes support frame (420), the inner chamber joint of support frame (420) has valve rod (410), valve (440) and valve limit bolt (430) are installed respectively to the both ends of valve rod (410), the outer wall of valve rod (410) has cup jointed connecting spring (450), the both ends of connecting spring (450) contact with the outer wall of valve limit bolt (430) and support frame (420) respectively.

2. The simple gas cylinder model for teaching of claim 1, wherein: the air exchange bin (120), the second air bin (200) and the extension bin (300) are integrally formed in an injection molding mode.

3. The simple gas cylinder model for teaching of claim 1, wherein: the sealing gasket is arranged at the joint of the first air bin (100), the first connecting bin (110), the first ventilating bin (120), the second air bin (200), the second connecting bin (210), the extension bin (300) and the piston cylinder (310).

4. The simple gas cylinder model for teaching of claim 1, wherein: and sealing rings are arranged at the joints of the supporting frame (420) and the inner walls of the first air bin (100) and the second air bin (200).

5. The simple gas cylinder model for teaching of claim 1, wherein: and one end of the piston rod (330) is fixedly provided with a pull ring.