CN102758961B - Card inserting device attached on rotating type valve or switch - Google Patents

Abstract

The invention discloses a card inserting device attached to a rotary valve or switch, comprising a movable fastener, a sealing box, a sealing piece and a card located in the sealing box, and the movable fastener is provided with a handle buckle and a window buckle , the cover cassette, the cover and the card are provided with locking windows capable of overlapping positions. In the present invention, only after the card is inserted into the sealing box, the rotary valve or switch can be opened or energized, on the contrary, only after they are closed, the card can be taken out and taken away, so that people can determine according to the card they hold after leaving. There is no doubt that they have been closed. This function can eliminate the hidden danger of people forgetting to close the valve or switch after leaving, and prevent major accidents caused by it.

Description

A plug-in device attached to a rotary valve or switch

technical field

The invention belongs to the field of mechanical manufacturing, and in particular relates to a card insertion device attached to a rotary valve or switch.

Background technique

Valves for controlling gas and liquid transportation in pipelines and switches on electrical appliances are widely used, but sometimes they are not closed when people leave, resulting in major accidents. For example, there is a pipeline in front of the gas stove in the kitchen. Continuous air leakage is not found, and the valve in front of the stove is not closed when people leave, so that the indoor gas continues to accumulate, and eventually deflagration occurs, causing heavy casualties and damage to the structure of the house.

The aging of indoor power cords and faults in electrical appliances may cause fires. Similarly, people did not cut off the power supply when they left, which also created conditions for the occurrence and expansion of fires. Therefore, the small operation of forgetting to close the valve or switch when leaving may bring very serious consequences.

Contents of the invention

The present invention provides a card insertion device attached to a rotary valve or switch (such as a plug valve or a rotary switch), the rotary valve or switch can be opened or energized only after the card is inserted; on the contrary, only after they are closed , the card can be taken out and taken away. Therefore, after people leave, they can be sure that they have been closed according to the card held. Obviously, this function can eliminate the hidden danger of forgetting to close the valve or switch after the above-mentioned people leave.

A card inserting device attached to a rotary valve or switch, including a movable fastener, a sealing box, a sealing piece and a card located in the sealing box, the movable fastener is provided with a handle buckle and a window buckle, The sealing box, the sealing piece and the card are provided with a locking window whose position can be overlapped. When the window buckle of the movable fastener enters the locking window, the sealing piece, the card and the sealing box are relatively locked. When the handle buckle cooperates with the valve handle or switch handle, the corresponding valve or switch is locked.

The components contained in the plug-in card device and their relative positions are described in detail above. It can be seen that the structure of the plug-in card device is very simple, the components are durable, and thus the performance is stable and reliable. The card can be brightly colored, and the existence of a brightly colored card next to the rotary valve or switch also has a reminder function for the closing operation before people leave. In addition, the card inserting device can also be used in places with similar needs other than rotary valves or switches.

The movable fastener can rotate around the fixed axis, or slide along the fixed groove or pipe. When sliding to the side of the valve handle or switch, the handle buckle locks the rotary valve or switch; when sliding to the side of the locking window, the window The clasp extends into the locking window, preventing the card from being removed.

The fixing of the cover sheet and the cover sheet cassette is realized by the elasticity of the cover sheet itself and the friction between the cover sheet and the cover sheet cassette caused by slight bending.

As preferably, there is an opening at the upper end of the sealing cassette, a gap at the lower end, and a crosspiece at the lower end of the sealing cassette. When the card is inserted to the bottom from the opening at the upper end of the sealing cassette, it hits the crosspiece, so that the sealing cassette is also pushed to the bottom. The windows of the three parts are aligned, and the window buckle on the movable fastener can enter the window on the sealing sheet, and at the same time, the handle buckle leaves the valve handle or switch handle; on the contrary, when the window buckle leaves the window, the crosspiece can be pushed up by hand, Drive the card so that its upper end is exposed outside the sealing cassette so as to be taken away, and the sealing sheet relies on its own bending and elastic support at any height between the two opposite walls of the sealing cassette.

As a preference, besides the crosspiece at the lower end of the sealing sheet, straight pieces can also be extended on the left and right sides of the sealing piece. The same side of the sheet, and there is a reed between the side of the cover sheet that does not protrude from the straight frame and the crosspiece and the cover sheet cassette.

There is a tight fit between the cover and the cover box, the bottom of the cover has crosspieces, the two sides of the cover have straight bars, and the side of the cover facing away from the card is provided with a reed In this way, the seal can be fixed at any position in the seal cassette due to the friction force generated by the reed, and at the same time, the surface of the inserted card will no longer be damaged by pressure friction and become durable.

The covers, the cards and the covers box can also be arranged in any direction for use, not limited to the vertical direction.

The handle buckle is obviously used to hold the valve handle or the switch handle to rotate, that is, it is a solid barrier on its moving path, and no further clarification is needed. However, in practical applications, the valve handle or switch handle has various shapes, and the handle buckle must have a targeted shape. Generally, the valve handles are mostly flakes. At this time, the handle buckle should be matched with the flake valve handle in pairs and parallel. strip parts. If the valve handle or switch handle is a handwheel on a valve, the handle buckle should add a downwardly protruding rod-shaped part that can move on it to insert into the gap of the handwheel; if the valve handle or When the switch handle is used to rotate in a vertical plane instead of a horizontal plane, and the handle buckle is required to limit its rotation from the back of the valve handle or switch handle, there should be a disc-shaped knob on the valve handle or switch handle. There is a hole or a notch on the disc-shaped knob, and the handle buckle should be in the shape of a rod, which is inserted behind the hole or notch on the disc-shaped knob to limit its rotation and achieve the purpose of closing the rotary valve or switch.

There are only two parts that need to be installed in this card insertion device, the movable fastener and the sealing box. They are either installed directly on the rotary valve or switch where they are located, or are installed on a base first, and then the base is installed on the rotary valve or switch where they are located. The card is plastic and the rest of the components are metal.

The present invention is a card-inserting device attached to a rotary valve or switch. It has a simple structure and is easy to manufacture. It can judge the opening and closing status of a rotary valve or switch based on whether the card is taken out, and eliminates the problem of failure to close the rotary valve in time. Safety hazards caused by valves or switches.

Description of drawings

Fig. 1 is an assembly diagram of a plug-in device attached to a rotary valve or switch according to the present invention;

Fig. 2 is a schematic diagram of a card insertion device attached to a rotary valve or switch inserted into a locking window according to the present invention.

Detailed ways

A card insertion device attached to a rotary valve or switch of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1 and Figure 2, a card insertion device attached to a rotary valve or switch includes a movable fastener 1, a sealing box 2, and a sealing piece 3 and a card 4 located in the sealing box 2. The cassette 2 , the cover 3 and the card 4 are provided with corresponding locking windows 9 .

The movable fastener 1 can rotate around the fixed rotating shaft 5, and the movable fastener 1 can also slide along a fixed groove or pipe. The movable fastener 1 contains a handle buckle 6 and a window buckle 7, and the sealing piece 3 is provided with a locking window 9. The movable fastener 1 is located between the valve handle or switch handle 8 and the locking window 9 on the sealing plate 3. When it moves to one end of the locking window 9, the window buckle 7 enters the locking window 9 so that the sealing plate 3 cannot move. When moving to valve handle or switch handle 8 one ends, valve handle or switch handle 8 are blocked and can not rotate.

There is an opening at the upper end of the sealing box 2, a gap 10 at the lower end, and a crosspiece 11 at the lower end of the sealing piece 3. When the card 4 is inserted from the opening at the upper end of the sealing box 2 to the end, it touches the crosspiece 11, so that the sealing piece 3 also follows. Pushed to the bottom, at this moment, the locking windows on the sealing box 2, the sealing piece 3 and the card 4 are aligned, and the window buckle 7 on the movable fastener 1 can enter the window 9 on the sealing piece 3, and at the same time, the handle buckle 6 leaves On the contrary, when the window buckle 7 leaves the window 9, the crosspiece 11 can be pushed up by hand to drive the card 4, so that its upper end is exposed outside the sealing box 2, so that it can be taken away and the sealing 3 rely on its own bending and elastic support at any height between the two opposite walls of the sealing cassette 2 with windows.

Cover sheet 3, except that there is crosspiece 11 at its lower end, also can stretch out straight shelf on two straight sides of its left and right sides, this straight shelf width is identical with the width of crosspiece 11, is perpendicular to sealing piece like crosspiece 11 The same side of 3, do not stretch out this side of this straight frame and crosspiece 11 on the sealing sheet 3 simultaneously and between the sealing sheet box 2, there is a reed.

When the present invention works as a card-inserting device attached to a rotary valve or switch, the card 4 is inserted into the sealing cassette 2 and abuts against the crosspiece 11 of the sealing sheet 3 located in the sealing cassette 2, so that The sealing sheet 3 is pushed to the bottom, at this moment, the locking window 9 at the corresponding position of the sealing sheet cassette 2, sealing sheet 3 and card 4 is aligned, the window buckle 7 can be inserted into the locking window 9, and the handle buckle 6 is separated from the valve handle or switch handle 8. The valve handle or switch handle 8 can be opened; when the handle buckle 6 engages with the valve handle or switch handle 8, the window buckle 7 is disengaged from the position of the locking window 9, and at this time, the sealing piece 3 can be moved from the gap 10 by hand Push up, so that the crosspiece at the bottom of the cover 3 also pushes the card 4, the upper end of the card 4 is exposed outside the cover box 2, and the card 4 can be taken away. At this time, the locking window 9 of the cover 3 and the cover The locking window 9 of the cassette 2 is misplaced, that is, the sealing plate 3 closes the locking window 9 of the sealing cassette 2, and the window buckle 7 cannot be inserted into the locking window 9, thereby maintaining the state where the handle buckle 6 is engaged with the valve handle or the switch handle 8 .

Claims (2)

1. A card insertion device attached to a valve or switch operated by rotation, including a movable fastener (1), a sealing box (2), and a sealing piece (3) and a card ( 4), characterized in that: the movable fastener (1) is provided with a handle buckle (6) and a window buckle (7), and the sealing box (2), sealing piece (3) and card (4) are three The person is provided with the locking window (9) that the position can be overlapped, and when the window buckle (7) of movable fastener (1) enters the locking window (9), it will make the sealing piece (3), the card (4) and the sealing box (2) ) are relatively locked, and when the handle buckle (6) of the movable fastener (1) cooperates with the valve handle or switch handle (8), the corresponding valve or switch is locked; the upper end of the sealing box (2) has an opening, and the lower end has There is a gap (10), and there is a crosspiece (11) at the lower end of the sealing piece (3). When the card (4) is inserted to the end from the opening at the upper end of the sealing box (2), it touches the crosspiece (11), so that the sealing piece (3) ) is also pushed to the end, at this time the windows of the three components are aligned, and the window buckle (7) on the movable fastener (1) can enter the window (9) on the cover piece (3). At the same time, the handle buckle (6) ) leaves the valve handle or switch handle (8); conversely, when the window buckle (7) leaves the window (9), the crosspiece (11) can be pushed up by hand to drive the card (4) so that its upper end is exposed on the seal Out of the cassette (2) so as to be taken away, the sealing sheet (3) is supported by its own bending and elastic support at any height between the opposite walls of the sealing cassette (2) with windows. 2. The card-inserting device attached to a rotary valve or switch according to claim 1, characterized in that: the sealing piece (3), in addition to the crosspiece (11) at its lower end, can also be Stretch out straight shelf on two straight sides of left and right, the width of this straight shelf is identical with the width of crosspiece (11), is perpendicular to the same side of sealing piece (3) as crosspiece (11), simultaneously sealing piece (3) There is no reed clamped between that side of this straight frame and the crosspiece (11) and the sealing cassette (2) on the top.

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