WO2019148440A1

WO2019148440A1 - Air compressor and assemblies thereof

Info

Publication number: WO2019148440A1
Application number: PCT/CN2018/075029
Authority: WO
Inventors: 洪英智; 林冠峰; 纪会龙; 闫江华
Original assignee: 冠翔（香港）工业有限公司
Priority date: 2018-02-02
Filing date: 2018-02-02
Publication date: 2019-08-08

Abstract

An air compressor and assemblies thereof. An air compressor (1) comprises: a housing (10); a controller (40) having a pressure gauge (41) and being used for monitoring pressure in real time and controlling same; a battery case assembly comprising a battery case and a battery case cover (50), a battery being placed in the battery case; a motor assembly, comprising a motor (611), a crank chamber (612), and a cylinder (614), wherein the motor (611) runs to generate compressed air; a pipeline (620) for transferring air, a T-junction (621) being provided on the pipeline (620) to connect to an inflating port (622) and the controller (40) respectively; and a first receiving base (20) and a second receiving base (30) provided on the housing (10) and being used for receiving a pressurized product distribution device, the first receiving base (20) being used for inflating the pressurized product distribution device by means of the inflating port (622), and the second receiving base (30) being used for deflating the pressurized product distribution device. The air compressor (1) can conveniently inflate and deflate the pressurized product distribution device.

Description

Air compressor and its components

Technical field

The invention relates primarily to the field of air pressurization and dispensing. More specifically, the present invention relates to air compressors and components thereof.

Background technique

This section describes only background information related to the present invention and may or may not constitute prior art.

The air compressor is the main body in the air source device. The air compressor converts the mechanical energy of the prime mover (usually the electric motor) into gas pressure energy, and belongs to the air pressure generating device of the compressed air. One of the air compressors is a positive displacement compressor. The working principle of the positive displacement compressor is to increase the density of gas molecules per unit volume by increasing the volume of compressed gas to increase the pressure of the compressed air.

The pressurized product dispensing device is for dispensing a pressurized product, and the pressurized product dispensing device includes a pressurized product that, in use, ejects the pressurized product (material) through the nozzle.

To save cost, certain pressurized product dispensing devices are designed to be reusable. Specifically, the pressurized product dispensing device needs to be re-pressurized after the pressurized product is dispensed, and is dispensed again after the pressurization is completed, thereby repeatedly applying pressure to be reused. However, the conventional pressurization method is relatively cumbersome, and the specific pressurized product dispensing device does not have a compatible air compressor for pressurization. The inflation head of existing air compressors also does not match the pressurized product dispensing device. Moreover, the mismatched air compressor can not stabilize the pressurized product dispensing device even if it can be pressurized and inflated, which may cause risk of misalignment, shaking, falling off during the pressurized inflation process. In addition, the pressurized product dispensing device requires deflation when not in use, when inflated, during maintenance care, or otherwise, but in the prior art there is a lack of convenient and practical means for deflation of the pressurized product dispensing device.

Summary of the invention

It is an object of the present invention to provide an air compressor and its components to address the deficiencies of the prior art.

According to a preferred embodiment of the present invention, there is provided an air compressor comprising: a housing; a controller with a pressure gauge for monitoring and controlling pressure in real time; a battery compartment assembly including a battery compartment and a battery compartment cover a cover, a battery is placed in the battery case; a motor assembly including an electric motor, a crank chamber and a cylinder, wherein the electric motor operates to generate compressed air; a duct for conveying air, and a tee is disposed on the duct to be respectively connected to the inflator And a controller; wherein the housing is provided with a first receiving seat and a second receiving seat for receiving the pressurized product dispensing device, wherein the first receiving seat is configured to pass through the inflation port The pressurized product dispensing device is inflated and the second receptacle is for deflation of the pressurized product dispensing device.

According to a preferred embodiment of the present invention, there is provided an assembly comprising: a pressurized product dispensing device, the pressurized product dispensing device comprising: a storage bag into which the material to be sprayed is loaded a pressure distribution housing comprising a tubular body, a charging/discharging hole provided at a bottom of the body, a valve in the charging/discharging hole, a cover member, the cover member being openable to open the storage material a bag is placed in the pressurized dispensing housing, the cover member is closable to seal the sump in the pressurized dispensing housing and maintains pressure therein, and a nozzle for the hopper a material to be sprayed in the bag; the assembly further comprising an air compressor comprising: a housing, a controller with a pressure gauge for monitoring and controlling pressure in real time, a battery case assembly including a battery case And a battery case cover, the battery is placed in the battery case, the motor assembly includes an electric motor, a crank chamber and a cylinder, wherein the motor operates to generate compressed air, a duct for conveying air, and the duct is provided with Passing to the inflation port and the controller respectively, wherein the housing is provided with a first receiving seat and a second receiving seat for receiving the pressurized product dispensing device, wherein the first receiving seat is for passing The inflation port inflates the pressurized product dispensing device, and the second receptacle is for deflation of the pressurized product dispensing device.

Specifically, the present invention provides the following technical solutions:

An air compressor, comprising:

case;

a controller with a pressure gauge for monitoring and controlling pressure in real time;

a battery case assembly including a battery case and a battery case cover, the battery being placed in the battery case;

a motor assembly including an electric motor, a crank chamber, and a cylinder, wherein the electric motor operates to generate compressed air;

a pipe for conveying air, and a tee is disposed on the pipe to be respectively connected to the inflation port and the controller;

Wherein the housing is provided with a first receiving seat and a second receiving seat for receiving a pressurized product dispensing device, wherein the first receiving seat is for inflating the pressurized product dispensing device through the inflation port, The second receptacle is for deflation of the pressurized product dispensing device.

2. The air compressor according to claim 1, wherein the electric motor is coupled to the crank chamber, and a crank is accommodated inside the crank chamber, the crank is coupled to a push rod, and the push rod is turned And connected to the piston, wherein the piston is provided with a sealing ring and fits in the cylinder of the cylinder, the cylinder having an air outlet at the end.

3. The air compressor according to claim 2, wherein a center hole of the crank is adapted to be coupled to a drive shaft of the motor, and an end of the push rod opposite to a position of the piston is connected to the The eccentric hole of the crank is fixed to the other end of the push rod, and a seal ring is provided on the outer circumference of the piston.

4. The air compressor according to claim 1, wherein the first receiving seat is provided with two protrusions for cooperating with the concave portion of the bottom of the pressurized product dispensing device, thereby stably fixing The pressurized product dispensing device has a hollow portion between the two projections for inserting a trigger at the bottom of the pressurized product dispensing device to contact and activate the trigger switch of the air compressor.

5. The air compressor according to claim 1, wherein the second receiving seat is provided with two protrusions for cooperating with a recess of the bottom of the pressurized product dispensing device, thereby stably fixing The pressurized product dispensing device is provided with an insertion pin for inserting a valve of the pressurized product dispensing device to deflate the pressurized product dispensing device.

6. An assembly comprising:

A pressurized product dispensing device, the pressurized product dispensing device comprising:

a storage bag into which the material to be sprayed is loaded,

a pressure distribution housing comprising a tubular body, a charging/discharging hole provided at a bottom of the body, and a valve in the charging/discharging hole,

a cover member that is openable to place the storage bag in the pressurized dispensing housing, the cover member being closable to seal the storage bag within the pressurized dispensing housing and Keep the pressure on it, and

a nozzle for the material to be sprayed in the storage bag;

The assembly also includes an air compressor, the air compressor comprising:

case,

a controller with a pressure gauge for monitoring and controlling pressure in real time,

a battery case assembly including a battery case and a battery case cover, the battery being placed in the battery case,

a motor assembly including an electric motor, a crank chamber, and a cylinder, wherein the electric motor operates to generate compressed air,

a duct for transporting air, and a tee is disposed on the duct to be connected to the air inlet and the controller, respectively

Wherein the housing is provided with a first receiving seat and a second receiving seat for receiving the pressurized product dispensing device, wherein the first receiving seat is for inflating the pressurized product dispensing device through the inflation port The second receptacle is for deflation of the pressurized product dispensing device.

7. The assembly of claim 6 wherein the nozzle is disposed on the hopper.

8. The assembly of claim 6 wherein the nozzle is disposed on the cover member.

9. The assembly according to claim 6, wherein the electric motor is coupled to the crank chamber, and a crank is accommodated inside the crank chamber, the crank is coupled to a push rod, and the push rod is turned A piston connection, wherein the piston is provided with a sealing ring and fits within a cylinder of the cylinder, the cylinder having an air outlet at the end.

10. The assembly of claim 9 wherein the central bore of the crank is adapted to be coupled to a drive shaft of the motor, the end of the push rod opposite the position of the piston being coupled to the crank The eccentric hole is fixed to the other end of the push rod, and a seal ring is arranged on the outer circumference of the piston.

11. The assembly of claim 6 wherein the first receptacle is provided with two projections for mating with a recess in the bottom of the pressurized product dispensing device to stably secure the A pressurized product dispensing device having a hollow portion therebetween for inserting a trigger at the bottom of the pressurized product dispensing device to contact and activate a trigger switch of the air compressor.

12. The assembly of claim 6 wherein the second receptacle is provided with two projections for mating with a recess in the bottom of the pressurized product dispensing device to stably secure the A pressurized product dispensing device, the second receptacle having an insertion pin for insertion into a valve of the pressurized product dispensing device to deflate the pressurized product dispensing device.

Exemplary embodiments of the present invention will become apparent from the detailed description provided hereinafter. The detailed description and specific examples are intended to be illustrative and not restrictive.

DRAWINGS

The invention will now be described in detail in conjunction with the drawings. The drawings of the specification are not necessarily drawn to scale, and the drawings are merely schematic representation. In the drawings of the present invention, the same or similar reference numerals are used to designate the same or similar elements.

FIG. 1 shows an overall perspective view of an air compressor in accordance with an embodiment of the present invention.

2 shows an upper housing of an air compressor in accordance with an embodiment of the present invention.

Figure 3 illustrates a lower housing of an air compressor in accordance with an embodiment of the present invention.

Figure 4 shows a battery of an air compressor in accordance with an embodiment of the present invention.

Figure 5 illustrates a motor assembly of an air compressor in accordance with an embodiment of the present invention.

Figure 6 illustrates an upper panel of a housing of an air compressor in accordance with an embodiment of the present invention.

Detailed ways

The following description of the embodiments of the invention is intended to be illustrative only, In the respective drawings, the same reference numerals indicate the same or corresponding technical features.

FIG. 1 shows an overall perspective view of an air compressor in accordance with an embodiment of the present invention. The air compressor 1 comprises a housing 10, which is preferably provided with two receptacles on the upper panel of the housing, although one or more receptacles can of course also be provided. In the preferred embodiment of FIG. 1 of the present invention, a first receptacle 20 and a second receptacle 30 are shown. The first receptacle 20 is for inflating the pressurized product dispensing device and the second receptacle 30 is for deflation of the pressurized product dispensing device. The upper panel 101 of the housing is also provided with a controller 40 with a pressure gauge 41 that can monitor the pressure within the pressurized product dispensing device and control the amount of inflation pressure in real time. Also provided on the side of the housing is a battery compartment cover 50 that can be opened and closed to replace the battery therein.

The housing of the air compressor is composed of an upper casing and a lower casing, and the upper casing is shown in FIG. 2, wherein the inner casing has an integrally formed partition for engaging with the lower casing to accommodate each of the components. The upper housing is also provided with a hollow or transparent window for reading the reading of the pressure gauge of the controller.

Figure 3 illustrates a lower housing of an air compressor in accordance with an embodiment of the present invention. Specifically, a battery, a battery pack 600, a motor assembly 610, a duct 620 (with a tee 621, an inflation port 622, etc. on the duct), and a controller with a pressure gauge, and the like are placed in the lower casing.

Referring to Figure 4 and with continued reference to Figure 3, the battery of the air compressor in accordance with an embodiment of the present invention may be a rechargeable lithium battery. During use, the battery is placed in the battery case of the lower casing of the air compressor and covered with a cover to provide power to the motor assembly. A switch can be placed outside the cover or housing to control the battery to be turned "on" and "off". Preferably, the push button switch can also be provided on the controller with the pressure gauge to control the turning on and off of the battery. Alternatively, the air compressor of the present invention may also be connected to a power source by wires to draw power.

Referring to Figure 5 and with continued reference to Figure 3, motor 611 is coupled to crank chamber 612, and a crank 613 can be received within the crank chamber. The central bore of the crank is adapted to be coupled to the drive shaft of the motor. The crank is coupled to the push rod, which in turn is coupled to the piston, wherein the piston is disposed within the cylinder 614. The cylinder as the main body portion of the cylinder is used to form a compression chamber, and the piston is provided with a seal ring and fitted in the cylinder portion of the cylinder, and the presence of the seal ring prevents excessive air leakage from the inside of the compression cylinder toward the rear of the piston. The cylinder has an air outlet 615 at the end. The end of the push rod opposite the position of the piston can be connected to the eccentric bore of the crank. The piston can be fixed to the other end of the push rod, and the piston will reciprocate with the push rod to change the volume of the compression chamber.

Specifically, when the air compressor is in operation, the motor drive crank rotates along the axis, one end of the push rod rotates with the eccentric hole on the crank, and the other end of the connecting piston pushes the piston to reciprocate in the cylinder to change the volume of the compression chamber. When the air volume of the compression chamber becomes small, gas is discharged from the air outlet.

Referring back to Figure 3, the air from the compression chamber is piped to the tee where the air is split into two paths, one is sent to the controller with the pressure gauge to monitor the pressure in real time through the pressure gauge, and the other is delivered to The device that is inflated, wherein the air delivered to the controller and the air delivered to the inflated device are at the same pressure.

Referring to Figure 6 and with reference to Figures 1 and 3, Figure 6 illustrates an upper panel of a housing of an air compressor in accordance with an embodiment of the present invention. The first receiving seat 20 on the left side of FIG. 6 is for inflating the device, and the inflating port shown in FIG. 3 is inserted into the circular hole of the first receiving seat, and the first receiving seat is provided with a fan-shaped protrusion for the device to be inflated. The recesses at the bottom cooperate to stably fix the device to be inflated. Two

scallops

200 and 210 are shown in FIG. Of course, other numbers and shapes of protrusions or recesses can also be used. There is a rectangular hollow portion 220 in the middle of the two projections of Fig. 6 for inserting the bottom trigger of the device to be inflated, thereby contacting and triggering the trigger switch 700 shown in Fig. 3. That is to say, the present invention makes it possible to inflate the device to be inflated directly, and the trigger switch is activated to inflate only when the device to be inflated is inserted. The embodiment of the second receptacle 30 on the right in Fig. 6 is also provided with two scallops for cooperating with the recess at the bottom of the device to be deflated, thereby stably securing the device to be deflated. Likewise, other numbers and shapes of protrusions or recesses can be used. An insertion pin 300 is provided in the second receptacle for inserting a valve of the device to be deflated to deflate. Preferably, the valve can be a one-way valve or other suitable valve. The bottom of the pressurized product dispensing device is provided with an opening as a charging/discharging hole, and the valve is disposed in the charging/discharging hole. When inflated, the inflation port is inserted into the charging/discharging hole to open the valve to inflate. When deflated, the insertion pin is inserted into the charging/discharging hole to open the valve to inflate. The valve is closed without an inflation port or insertion pin insertion.

The pressurized product dispensing device can include a pressurized dispensing housing and a storage bag. The materials used for spraying (including gases, liquids, powders, etc.) are loaded into a storage bag. The storage bag is placed during use and can be secured in a pressurized dispensing housing, wherein the securing means can include a threaded connection, a snap connection or other suitable means of attachment.

The pressurized dispensing housing may include a tubular body with a charging/discharging hole at the bottom of the body and a valve in the charging/discharging hole. When the pressurized product dispensing device is not placed on the air compressor of the present invention, the valve is closed and the air in the pressurized dispensing housing does not escape. At the time of inflation and deflation, that is, when the pressurized product dispensing device is placed on the air compressor (the first receptacle or the second receptacle) of the present invention, the inflation port in the first receptacle of the air compressor or The insertion pin in the second receptacle can be inserted into the valve, thereby opening the valve to allow air to communicate with the outside, thereby inflating or deflated.

A cover member may be provided on the body of the pressurized dispensing housing, or the body of the pressurized dispensing housing may be designed to be sized to be opened for insertion or removal of the storage bag. And the pressurized dispensing housing can be sealed and maintained under pressure after being placed in the storage bag.

According to a preferred embodiment of the invention, a nozzle is provided on the upper portion of the pressurized dispensing housing (e.g., on the cover member), the nozzle having a straw extending into the storage bag to draw the material contained in the storage bag and spray it to the outside .

According to another preferred embodiment of the invention, the hopper carries its own nozzle for spraying the material to the outside. During use, since the pressurized distribution housing has been filled with pressurized gas, the pressure of the gas squeezes the storage bag and ejects the contents of the storage bag.

Prior to inflation, the storage bag is placed in a pressurized dispensing housing that houses the storage bag therein and is closed. Placing the pressurized dispensing housing of the pressurized product dispensing device on the first (inflated) receptacle of the air compressor, thereby activating the trigger switch, the motor starting to operate to inflate the interior of the pressurized dispensing housing during this period The inflation pressure is controlled by a controller with a pressure gauge.

After the inflation is completed, the pressurized product dispensing device is removed and the trigger is reset, whereby the motor can automatically stop running. When using a pressurized product dispensing device, it can be sprayed by pressing the nozzle.

The pressurized dispensing housing of the pressurized product dispensing device is placed on the second (deflation) receptacle of the air compressor, and the pin is opened to open the pressurized product, in any case where deflation is required as described above. The interior of the dispensing device is in communication with the external environment to vent the pressure within the pressurized dispensing housing of the pressurized product dispensing device.

The embodiments described above are merely illustrative and not limiting. Therefore, those skilled in the art can make modifications or changes to the above-described embodiments without departing from the inventive concept disclosed herein. Therefore, the scope of the invention is defined by the scope of the claims.

Claims

An air compressor characterized in that it comprises:

case;

a controller with a pressure gauge for monitoring and controlling pressure in real time;

a battery case assembly including a battery case and a battery case cover, the battery being placed in the battery case;

a motor assembly including an electric motor, a crank chamber, and a cylinder, wherein the electric motor operates to generate compressed air;

a pipe for conveying air, and a tee is disposed on the pipe to be respectively connected to the inflation port and the controller;

Wherein the housing is provided with a first receiving seat and a second receiving seat for receiving a pressurized product dispensing device, wherein the first receiving seat is for inflating the pressurized product dispensing device through the inflation port, The second receptacle is for deflation of the pressurized product dispensing device.
The air compressor according to claim 1, wherein said electric motor is coupled to said crank chamber, a crank is accommodated inside said crank chamber, said crank is coupled to a push rod, and said push rod is turned A piston connection, wherein the piston is provided with a sealing ring and fits within a cylinder of the cylinder, the cylinder having an air outlet at the end.
The air compressor according to claim 2, wherein a center hole of said crank is adapted to be coupled to a drive shaft of said electric motor, and an end of said push rod opposite to a position of said piston is coupled to said crank The eccentric hole is fixed to the other end of the push rod, and a seal ring is arranged on the outer circumference of the piston.
The air compressor according to claim 1, wherein said first receiving seat is provided with two projections for cooperating with a recess of a bottom portion of said pressurized product dispensing device, thereby stably fixing said A pressurized product dispensing device having a hollow portion therebetween for inserting a trigger at the bottom of the pressurized product dispensing device to contact and activate a trigger switch of the air compressor.
The air compressor according to claim 1, wherein said second receiving seat is provided with two projections for cooperating with a recess of a bottom portion of said pressurized product dispensing device, thereby stably fixing said A pressurized product dispensing device, the second receptacle having an insertion pin for insertion into a valve of the pressurized product dispensing device to deflate the pressurized product dispensing device.
An assembly characterized in that it comprises:

A pressurized product dispensing device, the pressurized product dispensing device comprising:

a storage bag into which the material to be sprayed is loaded,

a pressure distribution housing comprising a tubular body, a charging/discharging hole provided at a bottom of the body, and a valve in the charging/discharging hole,

a cover member that is openable to place the storage bag in the pressurized dispensing housing, the cover member being closable to seal the storage bag within the pressurized dispensing housing and Keep the pressure on it, and

a nozzle for the material to be sprayed in the storage bag;

The assembly also includes an air compressor, the air compressor comprising:

case,

a controller with a pressure gauge for monitoring and controlling pressure in real time,

a battery case assembly including a battery case and a battery case cover, the battery being placed in the battery case,

a motor assembly including an electric motor, a crank chamber, and a cylinder, wherein the electric motor operates to generate compressed air,

a duct for transporting air, and a tee is disposed on the duct to be connected to the air inlet and the controller, respectively

Wherein the housing is provided with a first receiving seat and a second receiving seat for receiving the pressurized product dispensing device, wherein the first receiving seat is for inflating the pressurized product dispensing device through the inflation port The second receptacle is for deflation of the pressurized product dispensing device.
The assembly of claim 6 wherein said nozzle is disposed on said storage bag.
The assembly of claim 6 wherein said nozzle is disposed on said cover member.
The assembly of claim 6 wherein said motor is coupled to said crank chamber, a crank is received within said crank chamber, said crank being coupled to a push rod, said push rod being in turn coupled to a piston Wherein the piston is provided with a sealing ring and fits within the cylinder of the cylinder, the cylinder having an air outlet at the end.
The assembly of claim 9 wherein said central bore of said crank is adapted to be coupled to a drive shaft of said motor, and an end of said push rod opposite the position of said piston is coupled to the eccentric of said crank a hole fixed to the other end of the push rod, and a seal ring is provided on the outer circumference of the piston.
The assembly of claim 6 wherein said first receptacle is provided with two projections for mating with a recess in the bottom of said pressurized product dispensing device for stably securing said pressurization The product dispensing device has a hollow portion in between the two projections for inserting a trigger at the bottom of the pressurized product dispensing device to contact and activate the trigger switch of the air compressor.
The assembly of claim 6 wherein said second receptacle is provided with two projections for mating with a recess in the bottom of said pressurized product dispensing device for stably securing said pressurization A product dispensing device having an insertion pin for insertion into a valve of the pressurized product dispensing device to deflate the pressurized product dispensing device.