TWI683972B - Fluid injector - Google Patents

Abstract

A fluid injector capable of being connected with a connection port of a container or a storage tank includes a housing provided with a fluid inlet and a fluid outlet surrounded by a ring wall, and a control valve capable of controlling opening and closing of the fluid inlet is provided in the housing The housing is provided with a transmission mechanism, one end of which is connected to the control valve, and the other end is connected to a movable stopper penetrating the ring wall. When the control valve opens or closes the fluid inlet, the transmission mechanism is driven by the control valve, and the movable stopper extends beyond the ring wall to snap against the connection port, or retracts into the ring wall, according to which the connection between the fluid injector and the connection port is determined The state can ensure that the movable stopper is indeed controlled to achieve the effect of smooth operation.

Description

Fluid injector

The invention relates to a fluid conveying device, in particular to a joint for conveying fluid.

Consider a pipe outlet joint that transports fluid. After connecting it to the connection port of the target container or storage tank, open the valve to output fluid. During the process, the joint must be firmly connected to avoid fluid leakage. If the fluid system is flammable or Those who are corrosive must avoid the above situation. Therefore, a conventional fluid injector such as disclosed in Chinese New Patent Publication No. M547628 is provided with a cover plate pivotally at the joint outlet, and the cover plate couples a pair of movable stoppers provided at the joint outlet. During the output, the cover can be pushed open, so that the movable stopper extends and snaps on the connection port of the container or storage tank, so that the joint cannot be pulled out or fall off from the connection port, thereby ensuring the joint and the container or storage tank Connect firmly.

In the above-mentioned conventional structure, the displacement of the movable stopper column is caused by the cover plate being pushed by the fluid. When the fluid stops outputting, the cover plate will return to its original position and the movable stopper column retracts, and will no longer be stuck on the connection port. However, if the cover plate cannot be pivoted smoothly due to stuck or other unknown reasons, the movable stopper can no longer move, which will lead to the situation that the joint cannot be firmly connected to the container or storage tank, or the joint cannot be pulled out from the connection port.

In view of this, how to improve the above problems is the primary problem to be solved by the present invention.

The main purpose of the present invention is to provide a fluid injector which controls the displacement of the movable stopper through the opening and closing of the valve to determine the connection state of the joint and the connection port of the container or storage tank, and can ensure that the movable stopper is reliably controlled to achieve The effect of smooth operation.

To achieve the foregoing purpose, the present invention provides a fluid injector, which can be connected to a connection port of a container or a storage tank; the fluid injector includes: A casing provided with a fluid inlet and a fluid outlet surrounded by a ring wall; a control valve which can control the opening and closing of the fluid inlet is provided in the casing; A transmission mechanism, which is installed in the housing, one end is connected to the control valve, and the other end is connected to a movable stopper penetrating the ring wall; when the control valve opens or closes the fluid inlet, the transmission mechanism is controlled by the The valve is driven to make the movable stopper stick out of the ring wall to snap against the connection port or retreat into the ring wall.

In one embodiment, the control valve is a ball valve, the ball valve is provided with a toggle block; an operation handle connected to the ball valve is provided outside the housing, which can be in a first position that controls the ball valve to close the fluid inlet and a The ball valve is controlled to rotate between the second position where the fluid inlet is opened; the transmission mechanism includes a shaft member provided in the housing, a connecting block is pivotally provided on the shaft member, the connecting block has a first end and a first Two ends, wherein the first end is pivotally connected to a connecting rod, the connecting rod is pivotally connected to the movable stop post, the second end abuts against the toggle block; when the operating handle moves to the first position, the The toggle block pushes the connecting block, so that the connecting rod pulls the movable stop post back into the ring wall; when the operating handle moves to the second position, the toggling block pushes the connecting block to make the connecting rod The movable stopper is pushed out of the ring wall to snap against the connection port.

In an embodiment, the ring wall pivot is provided with a cover plate that can normally close the fluid outlet, and the cover plate is pushed away when the fluid is output.

However, it is not difficult to obtain an in-depth understanding from the following detailed descriptions and drawings of the selected embodiments.

Please refer to Figures 1 to 3, which show a fluid injector provided by the present invention, which includes a housing 1 with a fluid inlet 11 connected to a fluid supply source (not shown) on one side, to For fluid input into the housing 1, a fluid outlet 12 connected to a connection port (not shown in the figure) of the container or storage tank is provided on the other side for outputting fluid to the container or storage tank. The fluid outlet 12 is surrounded by a ring wall 13, two opposite sides of the ring wall 13 are respectively provided with a perforation 131, and a movable stop post 132 is slidably disposed in the perforation 131. The ring wall 13 is provided with a cover plate 14 which can normally close the fluid outlet 12 and the cover plate 14 will be pushed away when the fluid is discharged.

As mentioned above, a control valve that can control the opening and closing of the fluid inlet 11 is provided in the housing 1, and an operating handle 2 connected to the control valve is provided outside the housing 1. In this embodiment, the control valve is a ball valve 3, and the operating handle 2 is turned to drive the ball valve 3 to open or close the fluid inlet 11; in short, when the operating handle 2 is rotated to a position as shown in Figure 2 In the first position shown, the ball valve 3 closes the fluid inlet 11, and when the operating handle 2 rotates to a second position as shown in FIG. 3, the ball valve 3 opens the fluid inlet 11.

As shown in Figures 1 and 2, an arc-shaped dial block 31 protrudes from the lower end of the ball valve 3, and a recess 311 is provided on the dial block 31. When the ball valve 3 is controlled to rotate by the operating handle 2, the toggle block 31 will be synchronously driven to rotate.

The housing 1 is provided with a transmission mechanism 4, which includes a shaft 41 arranged at a fixed position, a connecting block 42 and two connecting rods 43. In this embodiment, the shaft 41 is disposed on a fluid recovery line 15 located in the housing 1, and the connecting block 42 is slightly T-shaped, having two first ends 421 and a second end 422, two of the first ends 421 are respectively pivotally connected to a connecting rod 43, and the connecting rod 43 is pivotally connected to the movable stop post 132, and the second end 422 extends toward the dial block 31 and abuts In the recess 311.

With the above structure, as shown in FIG. 2, when the operating handle 2 is rotated to the first position, the toggle block 31 moves with the ball valve 3 and pushes the connecting block 42 to rotate around the shaft 41 , So that the two first ends 421 pull the connecting rod 43 when rotating, and then pull the movable stopper 132 to move inwardly of the ring wall 13 along the perforation 131 and retract into the ring wall 13. On the other hand, as shown in FIG. 3, when the operating handle 2 is rotated to the second position, the toggle block 31 moves with the ball valve 3 and pushes the connecting block 42 to rotate around the shaft 41, The two first ends 421 pull the connecting rod 43 when rotating, and then pull the movable stopper 132 to move toward the outside of the ring wall 13 along the perforation 131 and extend out of the ring wall 13.

In actual use of the present invention, first confirm that the operation handle 2 is located in the first position, that is, the position where the fluid inlet 11 is closed by the ball valve 3, at this time, as shown in FIG. 4, the movable stopper 132 is obtained by the foregoing The traction of the transmission mechanism retracts into the ring wall 13 without protruding from the ring wall 13, the fluid outlet 12 enclosed by the ring wall 13 can extend into the connection port 5 of the container or storage tank of the fluid delivery destination And engage with it. When the fluid is to be transferred, as shown in FIG. 5, as the operating handle 2 rotates to the second position, that is, the position where the fluid inlet 11 is opened by the ball valve 3, the movable stopper 132 is obtained by the aforementioned The traction of the transmission mechanism protrudes out of the ring wall 13 and then snaps against the bottom edge of the connection port 5, so that the fluid outlet 12 cannot be deliberately pulled out or accidentally fall off from the connection port 5, thereby ensuring the fluid The outlet 12 is firmly connected to the connection port 5 to avoid leakage.

The movable stop column 132 of the present invention is controlled by the operating handle 2 to be able to be surely moved its position, thereby ensuring that the present invention is firmly connected to the connection port 5 of the container or storage tank when the fluid is transferred, and the delivery operation is completed The invention can be taken out later to achieve the effect of smooth operation.

However, the disclosures of the above embodiments are only used to illustrate the present invention, not to limit the present invention. Therefore, the replacement of equivalent elements should still belong to the scope of the present invention.

In summary, those skilled in the art can understand that the present invention can indeed achieve the aforesaid objectives, and in fact meet the provisions of the Patent Law, and file an application according to law.

1‧‧‧Housing

11‧‧‧ fluid inlet

12‧‧‧ fluid outlet

13‧‧‧ Ring Wall

131‧‧‧Perforation

132‧‧‧Mobile stop

14‧‧‧cover

15‧‧‧ fluid recovery pipeline

2‧‧‧Operation handle

3‧‧‧Ball valve

31‧‧‧Toggle block

311‧‧‧Cavities

4‧‧‧ Transmission mechanism

41‧‧‧Shaft

42‧‧‧Connecting block

421‧‧‧The first end

422‧‧‧The second end

43‧‧‧Link

5‧‧‧Connector

Figure 1 is a schematic sectional view of the present invention, showing the structure of an internal ball valve; Figure 2 is a schematic cross-sectional view along the line AA in Figure 1; Figure 3 is a schematic diagram of the operating state of the connecting rod structure of the present invention; Figures 4 and 5 are schematic diagrams of the state of use of the present invention.

1‧‧‧Housing

11‧‧‧ fluid inlet

13‧‧‧ Ring Wall

131‧‧‧Perforation

132‧‧‧Mobile stop

15‧‧‧ fluid recovery pipeline

2‧‧‧Operation handle

3‧‧‧Ball valve

31‧‧‧Toggle block

311‧‧‧Cavities

4‧‧‧ Transmission mechanism

41‧‧‧Shaft

42‧‧‧Connecting block

421‧‧‧The first end

422‧‧‧The second end

43‧‧‧Link

Claims (2)

A fluid injector can be connected to a connection port of a container or a storage tank; the fluid injector includes: a housing provided with a fluid inlet and a fluid outlet surrounded by a ring wall; the housing is provided with a A ball valve capable of controlling the opening and closing of the fluid inlet, the ball valve is provided with a toggle block; an operation handle connected to the ball valve is provided outside the casing, which can control the ball valve at a first position where the ball valve closes the fluid inlet and a ball valve Rotating between the second position to open the fluid inlet; a transmission mechanism, which includes a shaft provided in the housing, a connecting block is pivotally provided on the shaft, the connecting block has a first end and a second End, wherein the first end is pivotally connected to a connecting rod, the connecting rod is pivotally connected to a movable stopper penetrating through the ring wall, the second end abuts against the toggle block; when the operating handle moves to the In the first position, the toggle block pushes the connection block, so that the connecting rod pulls the movable stopper back into the ring wall; when the operating handle moves to the second position, the toggle block pushes the connection Block, so that the connecting rod pushes the movable stop post out of the ring wall to snap against the connection port. The fluid injector according to claim 1, wherein the annular wall is pivotally provided with a cover plate which can normally close the fluid outlet, and the cover plate is pushed open when the fluid is output.

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