CN221299433U - Cylinder cover of medical air compressor - Google Patents

Abstract

The utility model relates to a medical air compressor cylinder cover, which comprises a cylinder cover, a gasket and a valve plate, wherein the cylinder cover, the gasket and the valve plate are fixed into a whole by countersunk screws, a valve body is arranged on an exhaust hole of the valve plate, an exhaust valve plate is arranged on a sealing ring belt of the valve body, a spring and a valve seat are sequentially arranged, the valve seat is fastened on the valve plate by bolts coated with thread anti-back glue and added with a second gasket, the valve plate is provided with 3 long waist-shaped air inlets which are arranged in a fan shape, the air inlet valve plate is positioned on the lower surface of the valve plate by a positioning pin, the gasket is assembled below the air inlet valve plate, the movable end of the air inlet valve plate is attached to the lower surface of the air inlet hole, the cylinder cover is connected with an air inlet joint, the inner holes of the air inlet valve plate, the spring, the valve seat and the clamping ring are sequentially assembled, a hollow partition plate is arranged between an air inlet cavity and an air exhaust cavity of the cylinder cover, long waist holes are formed at two ends and the top of the air inlet cavity and the air exhaust cavity of the cylinder cover, and cooling water channels are arranged in the valve plate.

Description

Cylinder cover of medical air compressor

Technical Field

The utility model belongs to the field of medical appliances, and particularly relates to a cylinder cover of a medical air compressor.

Background

The air compressor is commonly called an "air pump" and functions to generate compressed air. The piston air compressor is one kind of air compressor, and its air inlet and exhaust valve is divided into plate valve and reed valve. Wherein: the intake valve and the exhaust valve are of plate valve structures, so that the valve plate has the advantages of good sealing performance, complex structure compared with reed valves, high cost, large occupied space and low inflation efficiency. The low charging efficiency is caused by the lag of opening the valve plate of the plate valve air inlet structure when the rotating speed of the air compressor is high. In addition, the larger clearance volume of the air compressor of the plate valve air inlet structure also results in lower air charging efficiency. The air inlet valve and the air outlet valve are reed valve structures, and have the advantages of simple structure, small occupied space and high inflation efficiency. However, when the intake valve and the exhaust valve are of reed valve structures, the sealing performance of the reed valve plate is poorer than that of the plate valve plate.

In addition, the air compressor with the plate valve structure of the air inlet valve and the air outlet valve has more complicated air inlet and air outlet structures and large occupied space, so that most air compressors are air-cooled; the air compressors with reed valve structure are mostly water-cooled air compressors, but the cooling water channel is only arranged at the top of the cylinder cover, and is far away from the heat source, so that the cooling effect is not ideal.

Disclosure of utility model

The utility model aims to provide a medical piston type air compressor cylinder cover which has the advantages of simple structure, good air tightness, high inflation efficiency and long service life, and can solve the problem that lubricating oil is sprayed outwards along with air due to poor closing of an air inlet valve plate when air inlet of an air compressor is finished, and can avoid pollution of an air filter.

The aim of the utility model is realized by the following technical scheme:

A medical air compressor cylinder head comprises a cylinder head 1, a gasket 10 and a valve plate 11, wherein the cylinder head 1, the gasket 10 and the valve plate 11 are fixed into a whole through countersunk screws 27, a valve body is arranged on an exhaust hole 16 of the valve plate 11, an exhaust valve plate 19 is arranged on a sealing ring belt 15 of the valve body, a spring 20 and a valve seat 21 are sequentially arranged, and the valve seat 21 is fastened on the valve plate 11 through bolts 28 which are coated with thread anti-return glue and added with a second gasket 29. The valve plate 11 is provided with 3 long waist-shaped air inlets 13 which are arranged in a fan shape, the air inlet valve plate 17 is positioned on the lower surface of the valve plate 11 by a positioning pin 18, a gasket 12 is assembled below the air inlet valve plate 17, and the movable end of the air inlet valve plate 17 is attached to the lower surface of the air inlet 13.

As a preferred solution of the present utility model, the intake port 34 of the cylinder head 1 is connected with an intake joint 6, and a first gasket 5 is assembled between the intake joint 6 and the intake port 34. The inner hole of the air inlet joint 6 is sequentially provided with a valve plate 7, a spring 9, a valve seat 4 and a clamping ring 3.

As a more preferable technical solution of the present utility model, a hollow partition plate is arranged between the air intake chamber 2 and the air exhaust chamber 22 of the cylinder cover 1, namely: the air channel 24 for isolating the air inlet and exhaust cavities vertically penetrates through the cooling water channels 30 in the middle and at two sides of the cylinder cover 1 and is communicated with the long waist holes 25 at two ends. Meanwhile, 3 long waist holes 26 are formed in the top of the air channel 24 of the cylinder cover 1.

As a better technical scheme of the utility model, a water inlet 31 and a water outlet 33 are arranged on the cylinder cover 1, and cooling water channels 30 are arranged on two sides of an air inlet cavity and an air outlet cavity of the cylinder cover 1; the middle cavity of the valve plate 11 is provided with a cooling water channel 14 penetrating through the middle part and two sides, and two sides of the upper surface of the valve plate 11 are provided with 4 water inlet and outlet holes 32 which are communicated with the cooling water channel 30 of the cylinder cover.

The beneficial effects are as follows:

The medical air compressor cylinder cover has the advantages of simple structure, good air tightness, low exhaust temperature, high inflation efficiency and long service life, can solve the problem that lubricating oil is sprayed outwards along with air in a reverse direction due to poor closing of the air inlet valve plate when the air compressor is in the air inlet end, and can avoid pollution of an air filter.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a top view of the present utility model;

FIG. 3 is a bottom view of the present utility model;

FIG. 4 is a B-B cross-sectional view of the present utility model;

FIG. 5 is a cylinder head diagram of the present utility model;

FIG. 6 is a view of a valve plate subassembly of the present utility model;

FIG. 7 is a C-C cross-sectional view of the present utility model;

FIG. 8 is a cross-sectional F-F view of the present utility model;

FIG. 9 is a view of an intake fitting valve plate of the present utility model;

FIG. 10 is a view of an intake fitting valve seat of the present utility model;

FIG. 11 is a view of an exhaust valve sheet of the present utility model;

FIG. 12 is a B-direction view of the present utility model;

FIG. 13 is a C-view of the present utility model;

1-cylinder cover 2-air inlet cavity 3-clamping ring 4-valve seat 5-first gasket

6-Air inlet joint 7-valve plate 8-sealing ring belt 9-spring 10-gasket

11-Valve plate 12-gasket 13-air inlet hole 14-cooling water channel 15-sealing ring belt

16-Exhaust hole 17-air inlet valve plate 18-locating pin 19-exhaust valve plate 20-spring

21-Valve seat 22-exhaust chamber 23-exhaust port 24-air passage 25-long waist hole

26-Long waist hole 27-countersunk head screw 28-bolt 29-second washer 30-cooling water channel

31-Water inlet 32-water inlet and outlet hole 33-water outlet 34-air inlet

Detailed Description

The utility model will be described in further detail with reference to specific embodiments and the accompanying drawings

As shown in fig. 1 to 13, the utility model provides a medical air compressor cylinder head, which comprises a cylinder head 1, a gasket 10 and a valve plate 11, wherein the cylinder head 1, the gasket 10 and the valve plate 11 are fixed into a whole by countersunk screws 27, a valve body is arranged on an exhaust hole 16 of the valve plate 11, an exhaust valve plate 19 is arranged on a sealing ring belt 15 of the valve body, a spring 20 and a valve seat 21 are sequentially arranged, and the valve seat 21 is fastened on the valve plate 11 by bolts 28 coated with thread anti-back glue and added with a second gasket 29. The valve plate 11 is provided with 3 long waist-shaped air inlets 13 which are arranged in a fan shape, the air inlet valve plate 17 is positioned on the lower surface of the valve plate 11 by a positioning pin 18, a gasket 12 is assembled below the air inlet valve plate 17, and the movable end of the air inlet valve plate 17 is attached to the lower surface of the air inlet 13.

In some embodiments, the intake port 34 of the cylinder head 1 is connected with an intake joint 6, and a first gasket 5 is assembled between the intake joint 6 and the intake port 34. The inner hole of the air inlet joint 6 is sequentially provided with a valve plate 7, a spring 9, a valve seat 4 and a clamping ring 3.

In some embodiments, a hollow partition is provided between the intake chamber 2 and the exhaust chamber 22 of the cylinder head 1, namely: the air channel 24 for isolating the air inlet and exhaust cavities vertically penetrates through the cooling water channels 30 in the middle and at two sides of the cylinder cover 1 and is communicated with the long waist holes 25 at two ends. Meanwhile, 3 long waist holes 26 are formed in the top of the air channel 24 of the cylinder cover 1.

In some embodiments, the cylinder cover 1 is provided with a water inlet 31 and a water outlet 33, and both sides of the air inlet and outlet cavities of the cylinder cover 1 are provided with cooling water channels 30; the middle cavity of the valve plate 11 is provided with a cooling water channel 14 penetrating through the middle part and two sides, and two sides of the upper surface of the valve plate 11 are provided with 4 water inlet and outlet holes 32 which are communicated with the cooling water channel 30 of the cylinder cover.

The utility model relates to a cylinder cover of a medical air compressor, which is assembled on the upper end surface of a cylinder body of the medical piston air compressor, a positioning pin 18 of the cylinder cover penetrates into a positioning pin hole on the upper end surface of the cylinder body, and the cylinder cover of the medical air compressor is locked and fastened on the upper end surface of the cylinder body by a bolt, so that a complete medical air compressor is formed. The utility model relates to a medical air compressor cylinder cover, which comprises a cylinder cover 1, a gasket 10 and a valve plate 11, wherein the cylinder cover 1, the gasket 10 and the valve plate 11 are fixed into a whole through countersunk screws 27, an exhaust hole 16 of the valve plate 11 is a round hole, the upper surface of the valve plate is provided with a valve body, the valve body is provided with a sealing ring belt 15, an exhaust valve plate 19 is arranged on the sealing ring belt 15 on the upper surface of the exhaust hole 16, a spring 20 and a valve seat 21 are sequentially arranged, a bolt 28 is coated with thread stop glue, and then a through hole penetrating into a second gasket 29 and the valve seat 21 is screwed into a threaded hole of the valve plate 11 to be fastened. The exhaust hole 16 communicates with the exhaust chamber 22, and the exhaust chamber 22 communicates with the exhaust port 23. The air inlet holes 13 of the valve plate 11 are long waist holes which are arranged in a 3-sector mode. The air inlet valve plate 17 is positioned on the lower surface of the valve plate 11 by a positioning pin 18, the upper surface of the air inlet valve plate 17 is attached to the lower surface of the valve plate 11, the gasket 12 is assembled below the air inlet valve plate 17, and the movable end of the air inlet valve plate 17 is attached to the lower surface of the air inlet hole 13. The air inlet hole 13 is communicated with the air inlet cavity 2, and the air inlet cavity 2 is communicated with the air inlet 34. The air inlet 34 is connected with the air inlet joint 6, is equipped with first packing ring 5 between air inlet joint 6 and the air inlet 34, and air inlet joint 6 hole is equipped with valve block 7, spring 9, disk seat 4, snap ring 3 in proper order, wherein: the valve plate 7 is mounted on the sealing ring belt 8. in addition, a hollow partition plate is provided between the intake chamber 2 and the exhaust chamber 22 of the cylinder head 1, that is: the air channel 24 for isolating the air inlet and exhaust cavities vertically penetrates through the cooling water channels 30 in the middle and at two sides of the cylinder cover 1 and is communicated with the long waist holes 25 at two ends. Meanwhile, 3 long waist holes 26 are formed in the top of the air channel 24 of the cylinder cover 1. In addition, the cylinder cover 1 is also provided with a water inlet 31 and a water outlet 33, and cooling water channels 30 are arranged on two sides of an air inlet cavity and an air outlet cavity of the cylinder cover 1; the middle cavity of the valve plate 11 is provided with a cooling water channel 14 penetrating through the middle part and two sides, and two sides of the upper surface of the valve plate 11 are provided with 4 water inlet and outlet holes 32 which are communicated with the cooling water channel 30 of the cylinder cover 1. When the piston of the air compressor descends, the working volume in the cylinder is gradually increased, the pressure is gradually reduced, the air inlet valve plate 17 is bent downwards under the action of pressure difference, and the check valve plate 7 in the air inlet joint 6 slides along the inner hole wall of the air inlet joint 6 towards the air inlet cavity 2. At this time, both the intake valve and the check valve in the intake joint 6 are opened, and the external air enters the intake chamber 2 of the cylinder head 1 from the intake port of the intake joint 6 and then enters the piston head space in the cylinder body through the intake port 13 until the working volume becomes maximum. When the piston of the air compressor goes up, the working volume in the cylinder is gradually reduced, the pressure is gradually increased, and the exhaust valve plate 19 goes up under the action of the pressure difference. At this time, the exhaust valve plate 19 is opened, and the gas in the cylinder is exhausted out of the cylinder, enters the exhaust chamber 22 through the exhaust hole 16, and is exhausted out of the exhaust port 23. At this time, since the check valve is arranged in the air inlet joint 6, lubrication oil is not sprayed outwards along with air even if the air inlet valve plate 17 is poorly closed, and the air filter is polluted. Because the utility model adopts the air inlet valve plate 17 to seal on the lower surface of the valve plate 11, the valve plate is opened and closed by self elasticity. The exhaust valve body is arranged in the valve plate 11, the exhaust valve plate 19 is sealed with the valve body ring belt, so that the structure of the intake and exhaust valves is simple, the clearance volume of the air compressor is small, the inflation efficiency is high, and the air tightness is good. In addition, since the hollow partition plate is provided between the intake chamber 2 and the exhaust chamber 22 of the cylinder head 1, the intake chamber 2 and the exhaust chamber 22 are partitioned by the air passage 24. During operation, the heat of the exhaust cavity 22 is isolated by air and cannot be transferred to the air inlet cavity 2 to influence the air inlet temperature, so that the air inlet of the air compressor is ensured to be full. And the air in the air passage 24 is heated and then goes upward to be discharged through the 3 long waist holes 26 at the top of the air passage 24. Simultaneously, low-temperature air enters the air channel from the long waist holes 25 at the two ends, so that cold and hot air is circulated continuously. In addition, the two sides of the air inlet and outlet cavity of the cylinder cover 1 are provided with cooling water channels 30, the middle cavity of the valve plate 11 is provided with cooling water channels 14 penetrating through the middle part and the two sides, and the two sides of the upper surface of the valve plate 11 are provided with 4 water inlet and outlet holes 32, so that the cooling water of the cylinder cover 1 and the cooling water channels of the valve plate 11 are mutually communicated, the cooling water enters the cooling water channels 30 on the side surface through a water inlet 31 on the cylinder cover 1, enters the cooling water channels 14 of the valve plate 11 through two water inlet and outlet holes 32 on the same side of the upper surface of the valve plate 11, enters the cooling water channels 30 on the other side surface of the cylinder cover 1 through two water inlet and outlet holes 32 on the other side of the valve plate 11, and is discharged from a water outlet 33 of the cylinder cover 1. It should be further noted that the water outlet 33 is higher than the water inlet 31 in order to circulate the cooling water more fully. Therefore, the cooling water is closer to the heat source, and the cooling effect is better. Therefore, the medical air compressor cylinder cover has the advantages of simple structure, good air tightness, low exhaust temperature, high inflation efficiency and long service life, can solve the problem that lubricating oil is sprayed outwards along with air due to poor closing of the air inlet valve plate when the air compressor is in the air inlet end, and can avoid pollution of an air filter.

In the present utility model, unless specifically stated and limited otherwise, the terms "mounted" and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (4)

1. The utility model provides a medical air compressor cylinder head, including cylinder cap, gasket, valve plate, by countersunk head screw fixation as an organic whole, offered the valve body on the exhaust hole of valve plate, the valve block of taking is installed on the sealing ring area of valve body to install spring, disk seat in proper order, the disk seat is by scribbling screw thread stopping glue and add the bolt fastening of second packing ring on the valve plate, the valve plate has offered the long waist shape inlet port of 3 of fan-shaped arrangements, the valve block of admitting air is located the valve plate lower surface by the locating pin, assembly gasket under it, the valve block expansion end of admitting air is laminated with the inlet port lower surface.

2. A medical air compressor cylinder head as set forth in claim 1, wherein: an air inlet of the cylinder cover is connected with an air inlet connector, a first gasket is assembled between the air inlet connector and the air inlet, and an inner hole of the air inlet connector is sequentially provided with a valve plate, a spring, a valve seat and a clamping ring.

3. A medical air compressor cylinder head as set forth in claim 1, wherein: a hollow partition plate is arranged between the air inlet cavity and the air outlet cavity of the cylinder cover, namely: the air channel of the air inlet and exhaust cavity is isolated, the air channel vertically penetrates through the cooling water channels at the middle part and the two sides of the cylinder cover and is communicated with the long waist holes at the two ends, and meanwhile, 3 long waist holes are formed in the top of the air channel of the cylinder cover.

4. A medical air compressor cylinder head as set forth in claim 1, wherein: a water inlet and a water outlet are arranged on the cylinder cover, and cooling water channels are arranged on two sides of an air inlet cavity and an air outlet cavity of the cylinder cover; the middle cavity of the valve plate is provided with a cooling water channel penetrating through the middle part and two sides, and two sides of the upper surface of the valve plate are provided with 4 water inlet and outlet holes which are communicated with the cooling water channel of the cylinder cover.