TWI516434B - Fluid pumper - Google Patents

Description

Infusion tank

The invention relates to an infusion tank, in particular to a manual pneumatic dual-purpose infusion tank.

The conventional infusion tank is filled with liquid in its barrel and is squeezed into the barrel by manual airing or pressurized gas into the barrel to extrude the liquid to achieve the effect of liquid supply.

For the convenience of use, some infusion tanks have both manual and pneumatic modes for switching. However, since the barrel must be connected to the outside world in the manual mode, the hand pressure bar can slide back and forth to inflate into the barrel, so the infusion tank must be set. There is a structure such as a pressure relief hole, and the pneumatic mode does not need to reciprocately pull the hand pressure bar, and if the inside of the barrel communicates with the outside, the gas in the barrel is easily dissipated, which makes it difficult for the liquid to be pushed out of the barrel. Therefore, it is necessary to selectively close the pressure release. The hole will work smoothly.

More importantly, when using the pneumatic mode, the gas in the barrel will push the hand lever upwards, causing the hand pressure bar to pop up quickly, posing a danger, even if the setting device is installed to position the hand pressure bar, it is still possible Because of the forgetting of positioning, the hand pressure bar bounces.

The main object of the present invention is to provide an infusion tank which can be used for both manual and pneumatic purposes, and can prevent the hand pressure bar from being bounced by the gas pressure while closing the pressure relief hole.

In order to achieve the above object, the present invention provides an infusion tank comprising a liquid storage solution A barrel, a cover, a connecting tube, a tube, a hand lever and a positioning handle.

The liquid storage tank has an opening and a pressure gas inlet, and the opening is located at the top of one of the liquid storage tanks. The top of the liquid storage tank is further formed with a pressure releasing hole, and the cover body is disposed at the opening of the liquid storage tank and a hollow body, a side of one side of the cover body is formed with a liquid outlet, one end of the communication tube extends into the liquid storage tank, and the other end protrudes from the opening into the liquid storage tank and protrudes into the cover body, the communication The tube is in communication with the liquid outlet, the manifold is located in the communication tube, and one end of the tube extends into the cover body, and the hand pressure rod extends through the tube to slide in the tube The handle bar extends away from the one end of the liquid storage bucket to the outside of the cover body, and one end of the positioning handle is pivoted on the top of the liquid storage bucket, and the positioning handle can be between a first position and a second position Pivoting, the positioning handle is formed with a through hole.

Wherein, when the positioning handle is in the first position, an end of the positioning handle away from the liquid storage bucket is blocked from the end of the manual pressure bar away from the liquid storage tank, so that the manual pressure bar cannot be inside the manifold Moving, and the through hole does not correspond to the position of the pressure relief hole such that the pressure release hole is not in communication with the inside of the liquid storage tank and the outside; when the positioning handle is located at the second position, the positioning handle An end of the liquid storage tank is away from the hand pressure bar to move the hand pressure bar in the manifold, and the through hole corresponds to the position of the pressure relief hole, so that the pressure release hole communicates with the outside through the through hole .

With the above structure, when the positioning handle is located at the first position, the liquid storage tub is not in communication with the outside, and the hand pressing bar cannot move. At this time, pressurized gas is sent from the pressure gas inlet to the liquid storage tank. In the middle, the liquid in the liquid storage tank can be taken out from the communication pipe and flow out from the liquid outlet, and since the hand pressure bar is blocked by the positioning handle Blocking, the hand pressure bar is not pushed up by the pressure gas entering the liquid storage tank; when the positioning handle is in the second position, the liquid storage barrel is in communication with the outside, and the hand pressure bar is not The handlebar is blocked by the positioning handle, so the hand pressure bar can be slid and repeatedly sucked into the liquid storage tank so that the liquid in the barrel enters the manifold and is then pressed into the communication tube, so that the liquid can be discharged from the liquid through the communication tube. The mouth is out.

Thereby, the infusion bucket provided by the invention can be operated in both manual and pneumatic modes, and in the pneumatic mode, the pressure relief hole can be closed at the same time and the hand pressure bar can be blocked by the simple operation to avoid the upward bounce. Convenience and security.

The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the invention as claimed.

Referring to FIG. 1 , FIG. 2 and FIG. 2A , the present invention provides an infusion tank comprising a liquid storage tank 10 , a cover body 20 , a communication tube 30 , a manifold 40 , a hand pressure bar 50 and a positioning handle 60 . .

The liquid storage tank 10 has an opening 11 and a pressure gas inlet 12, and the opening 11 is located at the top of one of the liquid storage tanks 10. The pressure gas inlet 12 is provided with a control valve 121, and the control valve 121 can selectively The pressure gas inlet 12 is connected between the inside of the liquid storage tank 10 and the outside, and a pressure relief hole 13 is further formed on the top of the liquid storage tank 10. In the main embodiment of the present invention, the opening 11 of the liquid storage barrel extends outward. A ring wall 111 is formed, and the pressure relief hole 13 is formed in the ring wall 111. Wherein, the liquid storage tank may further be provided with a pressure indicating table 14, an automatic safety valve 15 and a pressure regulating valve 16, which can indicate the liquid storage tank 10 In the gas pressure, the automatic safety valve 15 can automatically perform pressure relief when the gas pressure in the liquid storage tank 10 exceeds a safe value, and the pressure regulating valve 16 can adjust the gas entering the liquid storage tank 10 from the pressure gas inlet 12. flow.

The cover body 20 is disposed at the opening 11 of the liquid storage tank and is hollow. A liquid outlet 21 is formed on one side of the cover body 20. In the main embodiment of the present invention, the cover body 20 is screwed to the opening 11 of the liquid storage tank and disposed in the space of the center of the ring wall 111.

One end of the connecting pipe 30 extends into the liquid storage tank 10, and the other end extends from the opening 11 into the liquid storage tank 10 and into the cover body 20, and the communication pipe 30 communicates with the liquid outlet 21, The manifold 40 is located in the communication tube 30 and one end of the manifold 40 also extends into the cover 20. Wherein, the end of the connecting pipe is provided with a one-way valve 31, and the one-way valve 31 can supply the liquid in the barrel into the connecting pipe 30 and the manifold 40 but cannot flow back into the barrel. Preferably, the single The valve 31 is a steel ball that is movable and disposed in the communication pipe 30.

The hand pressure bar 50 is inserted into the manifold 40 to be slidable in the manifold 40. The end of the hand pressure bar 50 extending away from the liquid storage tank 10 extends out of the cover body 20, and is mainly implemented in the present invention. In the example, the hand lever 50 has a handle 51 away from one end of the liquid storage tank 10. Wherein, the hand pressing bar 50 is provided with a piston 52 at one end of the handle 51 for better suction.

One end of the positioning handle 60 is pivoted on the top of the liquid storage tank 10, the positioning handle 60 can be pivoted between a first position and a second position, and the positioning handle 60 is formed with a through hole 611. . In a main embodiment of the invention, the The handle 60 is pivotally disposed on the ring wall 111. Preferably, the positioning handle 60 has a first end and a second end. The first end extends to form two parallel and spaced pivot arms 61. The two pivot arms 61 are respectively pivoted to opposite sides of the ring wall 111. The through hole 611 is formed on one of the pivot arms 61. The second end of the positioning handle 60 is formed with a contact surface facing the hand pressing bar 50. The groove 62, wherein the opposite ends of the peripheral wall of the engaging groove 62 of the positioning handle 60 are respectively connected to the two pivot arms 61, so that the positioning handle 60 is substantially annular.

When the positioning handle is in the first position, as shown in FIG. 3 and FIG. 5, the second end of the positioning handle 60 is blocked from the end of the hand pressing rod 50 away from the liquid storage tank 10, so that the hand pressure is The rod 50 cannot move in the manifold, and the through hole 611 does not correspond to the position of the pressure relief hole 13 so that the pressure relief hole 13 does not communicate between the liquid storage tank 10 and the outside, in more detail, The handle 51 is engaged with the engagement groove 62 and cannot move, and the through hole 611 is offset from the pressure release hole 13 and is not in communication.

When the positioning handle is in the second position, as shown in FIG. 1 and FIG. 4, the second end of the positioning handle 60 is away from the manual pressing rod 50 to enable the manual pressing rod 50 to move in the fistula. And the through hole 611 corresponds to the position of the pressure release hole 13 to communicate the pressure release hole 13 with the outside through the through hole 611. In more detail, the handle 51 is disengaged from the engagement groove 62 and the hand pressure bar The 50 is reciprocally slidable, and the through hole 611 is in communication with the pressure release hole 13.

In actual use, when the user wants to connect the pressure gas as a power source, the positioning handle is only required to be pushed to the first position, so that the hand lever is positioned by the positioning handle and cannot move, and the storage is made. The liquid tank is not connected to the outside world, and the pressure gas can be The body passes through the pressure gas inlet into the liquid storage tank, and the liquid in the liquid storage tank is pressed by the gas to enter the communication pipe, and further exits the liquid storage tank through the liquid outlet port for the user to note The liquid is applied to the other device; when the user wants to operate by hand, the positioning handle is pushed to the second position, so that the hand pressing bar is not positioned by the positioning handle and can slide in the fistula The user can pull the liquid into the manifold by pulling up the hand pressure bar, and then press the hand pressure bar to squeeze the liquid in the manifold into the communication tube, so that the liquid can flow out from the liquid outlet. .

With the above structure, the infusion bucket of the present invention can provide not only manual and pneumatic use modes for the user to select, but also can prevent the hand pressure bar from lifting and closing the pressure relief hole by a simple structure and operation mode. The user is not easy to use the pneumatic mode because he forgets to position the hand pressure bar first, which causes the hand pressure bar to pop up. Even if the user forgets to push the positioning handle to the first position, the pressure gas is turned on. The pressure hole is not closed, causing air leakage and can not be used. Of course, it will not cause the hand pressure bar to bounce, taking into consideration the convenience and safety, and it has the effect of progress. It meets the patent requirements stipulated by the national patent law, and the patent application is filed according to law. The squad has approved the patent as soon as possible.

10‧‧‧Liquid tank

11‧‧‧ openings

111‧‧‧Circle

12‧‧‧ Pressure gas inlet

121‧‧‧Control valve

13‧‧‧Relief hole

14‧‧‧ Pressure indicator

15‧‧‧Automatic safety valve

16‧‧‧pressure regulator

20‧‧‧ cover

21‧‧‧liquid outlet

30‧‧‧Connected pipe

31‧‧‧ check valve

40‧‧‧唧管

50‧‧‧hand bar

51‧‧‧handle

52‧‧‧Piston

60‧‧‧ Positioning handlebars

61‧‧‧ pivot arm

611‧‧‧through hole

62‧‧‧ snap groove

Figure 1 is a perspective view of the present invention.

Figure 2 is a perspective exploded view of the present invention.

2A is a partial perspective view of the liquid storage tank of the present invention.

Figure 3 is a perspective view of the positioning handle of the present invention in a first position.

4 is a schematic view of the positioning handle of the present invention in a second position.

Figure 5 is a schematic view of the positioning handle of the present invention in a first position

10‧‧‧Liquid tank

111‧‧‧Circle

12‧‧‧ Pressure gas inlet

14‧‧‧ Pressure indicator

15‧‧‧Automatic safety valve

20‧‧‧ cover

50‧‧‧hand bar

51‧‧‧handle

60‧‧‧ Positioning handlebars

611‧‧‧through hole

62‧‧‧ snap groove

Claims (5)

An infusion tank comprising: a liquid storage tank having an opening and a pressure gas inlet, the opening being located at a top of one of the liquid storage tanks, the top of the liquid storage tank further forming a pressure relief hole; a cover body disposed at The opening of the liquid storage tank is hollow, and one side of the cover body is formed with a liquid outlet; a connecting pipe, one end of which extends into the liquid storage tank, and the other end extends from the opening to the liquid storage tank and Extending into the cover body, the communication tube is in communication with the liquid outlet; a manifold is located in the communication tube, and one end of the manifold also extends into the cover body, and the liquid in the liquid storage tank can pass through the a space between the connecting pipe and the manifold is separated from the liquid storage tank by the liquid outlet; a hand pressing rod extends into the manifold to slide in the manifold, the hand pressing rod is away from the liquid storage tank One end of the cover extends out of the cover; a positioning handle, one end of which is pivoted on the top of the liquid storage bucket, the positioning handle can pivot between a first position and a second position, the positioning handle is Forming a through hole; wherein, when the positioning handle is in the first position, the positioning handle is away from the storage One end of the barrel blocks the end of the hand pressing rod away from the liquid storage tank, so that the hand pressing rod cannot move in the fistula tube, and the through hole does not correspond to the position of the pressure releasing hole, so that the pressure releasing hole does not Connected between the inside of the liquid storage tank and the outside; wherein, when the positioning handle is in the second position, the positioning handle is away from the end of the liquid storage tank away from the manual pressure bar to enable the manual pressure bar to Reciprocating inside and outside the tube Moving, and the through hole corresponds to the position of the pressure release hole, so that the pressure release hole communicates with the outside through the through hole. The infusion tank of claim 1, wherein the opening of the liquid storage bucket extends outwardly, and the pressure relief hole is formed on the ring wall, and the positioning handle is pivotally disposed on the ring wall, and the cover body is disposed on the ring body The space in the center of the ring wall. The infusion tank of claim 2, wherein the positioning handle has a first end and a second end, the first end extending to form two parallel and spaced pivot arms, the two pivot arms being respectively pivoted to On the opposite sides of the ring wall, the through hole is formed on one of the pivot arms, and the second end of the positioning handle is formed with an engaging groove facing the hand pressing rod, and the hand pressing rod is away from one end of the liquid storage barrel The handle has a handle, and when the positioning handle is in the first position, the handle is engaged in the engaging groove and cannot move, and the through hole is staggered and not connected to the pressure release hole. The infusion tank of claim 3, wherein opposite ends of the peripheral wall of the engaging groove of the positioning handle are respectively connected to the two pivot arms, so that the positioning handle is annular. The infusion tank of claim 1, wherein the pressure gas inlet is provided with a control valve that selectively connects the pressure gas inlet to the inside of the liquid storage tank and the outside.