TWI383105B - Method and apparatus for safely loading and unloading pneumatic control elements in pneumatic equipment - Google Patents

Description

Method and apparatus for safely loading and unloading air pressure control components in pneumatic equipment

The present invention relates to a method and apparatus for connecting or removing a pneumatic control element to a source of air pressure.

Pneumatically actuated machines must provide high-pressure air by means of an air compressor, which may be contaminated by a number of foreign substances, which may interfere with air pressure control; the foreign matter contains water droplets, dust, oil slag from the compressor, rust With scales and so on. Since all the working components, actuating components, control components and signal components must be in direct contact with the compressed air, it is necessary to have the ability to remove various pollutants in the compressed air and the function of pressure adjustment setting to ensure the pressure control components. Normal operation. The use of conditioned compressed air extends the life of pneumatic equipment components and minimizes the time it takes for various controls to be interrupted and component repairs.

Compressed air always contains varying degrees of moisture, which enters the compressed air network primarily in the form of water vapor. The moisture content is mainly a result of relative humidity and is determined by air temperature and weather conditions. If the saturation point of the compressed air is exceeded, the moisture condenses into water droplets. If the condensate in the compressed air is not removed in time, the pipeline, control components, work components and machinery will be eroded. If the condensate is allowed to enter the air pressure device, the normal function can be blocked. Solid materials such as dust, rust and scales have a detrimental effect on the functioning of the various components of the pneumatic equipment. Mixing the oil slag in the compressor with compressed air creates a mixture of oil mist and air that creates an explosion at higher temperatures.

In order to prevent damage to the pneumatic equipment caused by the contaminated compressed air and adversely affect the control sequence, it is usually necessary to install an air filter at the inlet of the air compressor to separate the dust in the air and cooperate with it. A cooling device behind the air compressor separates the condensate to dry the air. In addition, an air cleaner, a pressure regulating valve and a lubricating oil body are installed at the air inlet of the air pressure control element, so that the compressed air sent out is very clean and dry. The combination of the air cleaner, the pressure regulating valve, and the lubricating oil body is collectively referred to as an "air pressure conditioning group."

Generally speaking, the compressed air treated by the air pressure conditioning group can be used for the pneumatic equipment; before the compressed air is sent to the pneumatic device via the pipeline, depending on the use of the pneumatic device, it is necessary to connect the pipeline such as a solenoid valve or a manual. Valves, pressure regulators, ... and other pneumatic control components to control whether compressed air is output to the pneumatic equipment, or to the flow, pressure, etc. of the pneumatic equipment.

As shown in the first figure, the conventional method of transporting compressed air to the air pressure device via a pipeline is to connect the air pressure source 1 with the main line A, and the main line A according to the different quantity and use of the pneumatic circuit design equipment. The connection is connected to a plurality of manifolds, and each manifold B is connected to the pneumatic control components of various purposes by the same male and female teeth, for example, a three-position two-position valve, a pressure regulating valve, a solenoid valve, an emergency isolation valve, Soft speed valves, pressure switches, etc., compressed air passes through the air pressure control elements before the pneumatic equipment can be operated. Therefore, it is very troublesome and inconvenient to complete the connection of the pipeline by means of the connection of the teeth. In addition, when the pneumatic control element or circuit needs to be regularly maintained or the fault needs to be removed and replaced, the conventional conventional male and female teeth are connected, and the dust and moisture of the pneumatic pipeline may be controlled by the air and air pressure. The gap between the components is rusted and bitten, which causes troubles in disassembly and loss of parts, which is a waste of time. Moreover, the aforementioned conventional device does not provide a safety warning function for whether the main valve is closed. If the operator unloads the air pressure control element when the main valve is not closed, the strong pressure in the pipeline will be unlocked. A component that is tightly or correctly homing instantly bursts into the air and causes unfortunate damage to the human body.

It is an object of the present invention to provide a need to install a plurality of pneumatic control elements in a pneumatic device without connecting a plurality of manifolds from a pressure source, and then installing or removing pneumatic control elements from the manifolds one by one. Inconvenient methods and devices caused by individual air pressure control elements.

It is still another object of the present invention to provide a method of pre-warning whether a pneumatic control element or a connecting seat still has a high pressure before the pneumatic control element mounted on the connecting seat is detached, so as to facilitate the pre-closing of the main valve of the pressure source, or even The high pressure remaining in the air pressure control element is removed first and then removed to maintain the work safety method and device of the operator.

One of the features of the present invention is to provide a plurality of connecting seats that can be connected to each other in series and communicated with each other. The inlet of one of the connecting seats is connected to a pneumatic source, and each connecting seat can engage at least one pneumatic control element. The air pressure control element can be connected to the pneumatic working device via a pipeline at a closest distance and in a manner of reducing the occupied space, and the air pressure acts on the air pressure control element through the connecting seats, thereby loading and unloading the air pressure control element in the pneumatic device more quickly. Convenience.

Another feature of the present invention is that a pressure relief valve is provided for each of the connection seats that can be provided in series. When the pneumatic control element mounted on the connection base needs to be removed, the pressure relief valve can be operated to confirm whether or not the pressure relief valve is operated. There is a main valve that closes the air pressure source, or the residual pressure is removed to ensure worker safety.

The technical means for connecting the connecting blocks to each other and installing the air pressure control element is to provide an inlet, an outlet and at least one communication port in the body of the connecting seat, the inlet of the connecting seat and the other connecting seat. The outlets can be joined to each other, and the communication port of each connector can be coupled to a pneumatic control element, and the inlet or outlet of the connector can be engaged with the flange to be engaged with a through hole provided in a pressure vessel, so that the pressure inside the pressure vessel The pneumatic control element can be acted upon by the connecting seat; in addition, a pressure relief valve is provided on the connecting seat body, and when the pressure relief valve is operated, the air pressure in the connecting seat can be released.

As a preferred option, the present invention is provided at the inlet and outlet of the connector, on the symmetrical sides of the connector body.

As another preferred option, the present invention provides a communication port on each side of the symmetry of the connector body, and each communication port can be independently connected to a pneumatic control element. The inner edge of the communication port is provided with a plurality of card slots, and the outer edge of the air inlet of the air pressure control element is provided with a card block for engaging the card slots, so that the card can be inserted into the card After the grooving, the air pressure control element is rotated and connected with respect to the connecting seat; when the air pressure control element is rotated in the opposite direction with respect to the connecting seat, the two can be removed and separated.

As a further preferred option, the present invention has mutually corresponding holes on the two sides of the connecting seat having the inlet and the outlet, and corresponding positioning posts and positioning holes, when the positioning post of one connecting seat is inserted into the other When the positioning holes of the connecting seats are connected, the holes of the two connecting seats are linearly corresponding, and the inlets and the outlets of the two connecting seats are linearly corresponding, and the fixing elements are used to pass through the corresponding two holes and fix the two connecting seats, thereby It is convenient to install the connection between the connectors.

The preferred selection of the fixing member for fastening the connecting seat can be completed by using a bolt of a suitable length to fit the fixing block; the bolt and the fixing block fix the two connecting seats from the inside of the connecting seat body, and then The cover is shielded to maintain the appearance of the connector and prevent foreign matter from entering the connector.

The embodiments of the present invention will be described in more detail below with reference to the drawings, so that anyone skilled in the art can implement the invention after studying the patent specification.

Referring to the second embodiment, a preferred embodiment of the present invention provides a plurality of connecting blocks 2 that can be connected in series with each other. Each connecting block 2 can be connected to at least one air pressure control element 3, one end or two ends of which are connected in series. The connection seat can be connected to the air pressure source 1 so that air pressure can reach each of the air pressure control elements 3 through each of the connection bases 2, and the air pressure control element 3 is sent to the air pressure terminal device by the action of the circuit assembly and the automatic control device.

3A to 3C show the structure of a preferred embodiment of the connector 2 provided by the present invention, and the combination of the connector 2 and the air pressure control member 3. The connecting seat 2 may be a rectangular body having an inner space, and the inner space is formed with a passage for providing a gas flow; preferably, the symmetric two sides of the connecting base 2 are respectively provided with an inlet 21 communicating with the inside thereof. An outlet 22 and two communication ports 23 on the other symmetric sides, and a peripheral edge of the communication port 23 is provided with a latching groove 231 for combining with the latching block 31 provided at the intake end of the air pressure control element 3; The number of the block 31 and the latching slot 231 is not limited, and may be designed to be an even number or an odd number according to actual needs; for example, two, four or five (as shown in the third D diagram). The air pressure control element 3 can be inserted into the latching slot 231 of the connecting base 2 by the latching block 31 of the outer edge of the intake end thereof, and the pneumatic control element 3 is rotated clockwise with respect to the connecting base 2 to move the latching block 31. The position is offset from the latching slot 231, so that the latching is completed at the inner edge of the communication port 23, and after the counterclockwise rotation, the latching block 31 can be displaced to the position of the latching slot 231, and then the latching is performed. The block 31 is moved out of the latching slot 231 to quickly disengage the pneumatic control element 3 from the connector block 2.

The connecting seat 2 has two holes 25 corresponding to the two sides of the inlet 21 and the outlet 22, and corresponding positioning posts 26 and positioning holes (not shown); when the positioning post 26 of a connecting seat 2 is inserted into the other When a positioning hole of the connecting seat 2 is connected, the holes 25 of the two connecting seats are linearly corresponding, and the inlet 21 of the two connecting seats are linearly corresponding to the outlet 22, and then the fixing element passes through the corresponding two holes 25 The two connecting bases 2 are fixed.

Referring to FIGS. 4A and 4B, the present invention also provides a pressure relief valve 24 in communication with the interior of the connector 2 at a suitable position of the connector 2, which can be vented when operated. The hole 241 forms a passage for allowing the high-pressure gas in the joint 2 to be discharged through the exhaust outlet 241. When the pressure relief valve 24 is released, the exhaust hole 241 can be closed to prevent the high-pressure gas from leaking out.

As shown in FIG. 6A, the fixing member is a combination of a bolt 29A and a fixing block 29B in a preferred embodiment of the present invention, and the fixing block 29B is a block body which is first placed in the connecting seat 2. The positioning groove, the bolt 29A is screwed through the fixing block 29B inside the connecting seat and passes through the hole 25 of the two connecting seats 2, and then locked into the fixing block 29B in the other connecting seat, thereby completing the series fixing of the two connecting seats. , as shown in Figure B. As shown in FIGS. 5A and 5B, since the bolt 29A and the fixing block 29B are mounted from the inside of the body of the joint 2, in order to provide a better visual appearance of the joint and to prevent foreign matter from entering the joint In the present invention, a cover body 27 is respectively disposed on the opposite sides of the connecting base 2 for shielding; the opposite side edges of the cover body 27 are respectively provided with a fixing hook 271 and a resilient hook 272, and are connected. The first side of the opening of the inner space of the cover body 27 is provided with a first button hole 28A and a second button hole 28B respectively. When the cover body 27 is covered on the side of the side of the connector body, Firstly, the fixing hook 271 is buckled into the first fastening hole 28A, and then the cover body 27 is slightly pushed, so that the elastic fastening hook 272 is pressed into the opening after the edge of the connecting seat is pressed, and then elastically snaps into the second fastening hole 28B to complete the combination; When the cover 27 is to be removed, the elastic hook 272 is pressed out of the second fastening hole 28B, and the cover 27 can be pulled out of the connection seat, and the first fastening hook 271 can be further taken out of the first fastening hole 28A.

By using the combination of the foregoing bolts and the fixing block, a plurality of connecting bases 2 can be connected in series (as shown in the sixth B and seventh figures), and the connecting seat inlets at the rear end of the series can be combined with a flanged seat 4A. The flange seat 4A is combined with a pipe connected to the air pressure source to form a fluid passage between the air pressure source 1 and each of the connecting seats 2. The connection seat outlet at the other end after the series connection may be closed by a flange seat 4B having no opening, or the outlet may be connected to the air pressure source so that the compressed air enters the connection seat simultaneously from both ends of the series connection seat.

The above is only a preferred embodiment for explaining the present invention, and is not intended to limit the present invention in any way, and any modifications or alterations to the present invention made in the spirit of the same invention. All should still be included in the scope of the intention of the present invention.

1. . . Air pressure source

2. . . Connecting seat

twenty one. . . import

twenty two. . . Export

twenty three. . . Connecting port

231. . . Card slot

twenty four. . . Pressure relief valve

241. . . Vent

25. . . Hole

26. . . Positioning column

27. . . Cover

271. . . Fixed clasp

272. . . Elastic hook

28A. . . First buttonhole

28B. . . Second buttonhole

29A. . . bolt

29B. . . Fixed block

3. . . Pneumatic control element

31. . . Card block

4A, 4B. . . Flange seat

The first figure shows a schematic diagram of a conventional connection between each connection block and a pneumatic source.

The second figure is a schematic view showing an embodiment of the series complex connector and the plurality of air pressure control elements of the present invention.

The third A is an exploded perspective view showing that the respective connecting bases and the air pressure control elements of the present invention are respectively provided with an even number of latching slots and latching blocks, and a combination thereof.

Figure 3B is a perspective view showing an embodiment in which the pneumatic control element is combined with the connector.

Figure 3C is a partial plan cross-sectional view showing the structure in which the pneumatic control element is mounted to the connector of the present invention.

The third D is an exploded perspective view showing an odd number of card slots and cassette blocks for each of the connecting bases and the air pressure control elements of the present invention.

Figure 4A is a schematic view showing the position at which the pressure relief valve of the present invention can be operated and pressed.

FIG. 4B is a schematic view showing that compressed air can be discharged from the exhaust hole after the pressure relief valve provided in the connecting seat of the present invention is pressed.

Fig. 5A is an exploded perspective view showing the combined relationship between the connector body and the cover of the present invention.

Fig. 5B is a perspective view showing an embodiment in which the connector body of the present invention is combined with the cover body.

Figure 6A is an exploded perspective view showing an embodiment in which a plurality of connecting blocks are fixed in series in the present invention.

Figure 6B is a perspective view showing an embodiment of the present invention in which a plurality of connecting blocks are fixed in series.

Fig. 7 is a plan sectional view showing an embodiment of the structure in which a plurality of connecting blocks are fixed in series in the present invention.

1. . . Air pressure source

2. . . Connecting seat

3. . . Pneumatic control element

Claims (16)

A method for safely loading and unloading a pneumatic control element in a pneumatic device, comprising: providing a source of air pressure; providing a plurality of connecting seats having a pressure relief valve, the connecting seat having an inlet, an outlet, and at least one communication port communicating with the interior thereof, The inlet of the connecting seat and the outlet of the other connecting seat may be coupled to each other, and the inlet and the outlet may be connected to the air pressure source, the inner edge of the communicating port is provided with a plurality of card slots; and at least one air pressure control element is provided, the air pressure control The component has an air inlet end, and the outer edge of the air inlet end is provided with a latching block corresponding to the latching slot, and the air pressure control component can be coupled to the latching slot by the latching block to apply the air pressure control component The combined connection is quickly completed with respect to the rotation of the connector in the first direction, and the pneumatic control element and the connector are quickly removed after being rotated in the opposite direction. The method of claim 1, wherein the number of the card slot and the card block are an odd number. The method of claim 1, wherein the number of the card slot and the cassette block is an even number. The method of claim 1, wherein the inlet and outlet of the connector are located on opposite sides of the connector body. The method of claim 1, wherein the connecting base has two communication ports, and the two communication ports are located on opposite sides of the connecting seat body. According to the method of claim 1, wherein the connecting seat has two holes corresponding to each other on the two sides of the inlet and the outlet, and corresponding positioning posts and positioning holes, when positioning of a connecting seat When the column is inserted into the positioning hole of the other connecting seat, the holes of the two connecting seats are linearly corresponding, and the inlet and the outlet of the two connecting seats are linearly corresponding, and the fixing element is used to pass through the corresponding two holes and connect the two The seat is fixed. The method of claim 6, wherein the fixing element is a combination of a bolt and a fixed block. The utility model relates to a device for safely loading and unloading a pneumatic control component in a pneumatic device, comprising a plurality of connecting seats having a pressure relief valve and at least one air pressure control component, each connector having an inlet, an outlet and at least one communication port communicating with the interior thereof, The inlet of the connecting seat and the outlet of the other connecting seat are mutually engageable, and the inner edge of the connecting port is provided with a plurality of latching slots, and the air inlet end of the air pressure controlling component is provided with a latching block which can engage the latching slot. The device of claim 8, wherein the number of the card slot and the card block are an odd number. The device of claim 8, wherein the number of the card slot and the card block is an even number. The device of claim 8, wherein the inlet and outlet of the connector are located on opposite sides of the connector body. The device of claim 8, wherein the connector has two communication ports, and the two communication ports are located on opposite sides of the connector body. According to the device of claim 8, wherein the connecting seat has two holes corresponding to each other on the two sides of the inlet and the outlet, and corresponding positioning posts and positioning holes, when positioning of a connecting seat When the column is inserted into the positioning hole of the other connecting seat, the holes of the two connecting seats are linearly corresponding, and the inlet and the outlet of the two connecting seats are linearly corresponding, and the fixing element is used to pass through the corresponding two holes and connect the two The seat is fixed. The device of claim 13, wherein the fixing member is a combination of a bolt and a fixed block. The device of claim 8, wherein the side wall of the connector is provided with at least one cover that can be opened or closed. The device of claim 15, wherein the opposite sides of the connecting seat are respectively provided with a first button hole and a second button hole, and the opposite sides of the cover body are respectively provided with a fixing hook. And the elastic clasp, the fixing clasp and the elastic clasp are respectively engaged with the first clasp hole and the second clasp hole, and the cover body is combined with the connecting seat.