Combined tee joint for suction tube

Abstract

The utility model discloses a combined tee joint for a suction pipe, which belongs to the field of tee joint pipeline devices and comprises an upper end connecting and guiding pipe, a pressure stabilizing cylinder is tightly attached to the top end of a convex edge of the inner wall of the upper end connecting and guiding pipe, a cavity is formed in the pressure stabilizing cylinder, and a communicating hole is formed in the bottom of the cavity. A pressure relief opening and a pressurization opening are symmetrically formed in the outer side of the pressure stabilizing cylinder. According to the utility model, through the matching arrangement of the piston disc and the thread groove, when the negative pressure in the lower end connecting pipe is greater than or smaller than a normal pressure value range, the piston disc descends to drive the pressure stabilizing disc to rotate, so that the pressure relief port or the pressurization port is butted with the external pipe, and carbon dioxide gas with a normal pressure value in the external pipe is fed into the cavity; when the negative pressure is not stable, the carbon dioxide gas is sent out from the communicating hole to supplement air pressure for the lower end connecting and guiding pipe, so that when the negative pressure is not stable, the carbon dioxide gas serves as a gas supply source, the gas supply stability is guaranteed, and the practicability of the device is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to three -way pipeline device technical field especially, relates to a combined tee for suction tube. BACKGROUND

[0002] Suction tube is as common auxiliary tool in surgical treatment, and common suction tube provides suction force to take hydrops to waste liquid collecting jar through negative pressure pipeline, but negative pressure pipeline appears unstable phenomenon in the operation due to the limitation of the number of equipment used, thereby causing the flushing liquid to spray or the hydrops recovery speed to be unstable, in order to avoid the negative pressure instability caused by the larger number of equipment used, the normal use of suction tube brings negative influence, and a combined tee is presented to solve the above problems. SUMMARY

[0003] The utility model discloses a combined tee for suction tube to solve the problem of unstable negative pressure supply caused by the larger number of equipment used in the prior art.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme:

[0005] A combined tee for suction tube, including the upper end connection guide tube, the convex edge top of the inner wall of the upper end connection guide tube is closely attached with the stabilizing cylinder, the inside of the stabilizing cylinder is provided with a cavity, the bottom of the cavity is provided with a communication hole, the outside of the stabilizing cylinder is symmetrically provided with a pressure relief port and a pressure boost port, and the pressure relief port and the pressure boost port are communicated with the cavity, the side surface of the upper end connection guide tube is fixedly connected with an external connection pipe, the external connection pipe is located on the same horizontal plane with the pressure relief port and the pressure boost port, the inner wall of the stabilizing cylinder is connected with a piston disc through a wire slot, the inclined surface of the piston disc at the middle part is closely attached to the inclined surface at the bottom end of the stabilizing cylinder, the top end shaft of the piston disc is provided with a threaded groove, and the threaded groove is matched with the wire slot in the inner wall of the stabilizing cylinder.

[0006] Preferably, the inner wall of the upper end connection guide tube is fixedly provided with a top limiting ring, and the lower surface of the top limiting ring is closely attached to the inclined surface outside the upper surface of the stabilizing cylinder.

[0007] Preferably, the upper surface of the stabilizing cylinder is provided with four air inlet cavities, and the four air inlet cavities are arranged in a ring array around the piston disc as the axis.

[0008] Preferably, the bottom side of the inner wall of the upper end connection guide tube is fixedly provided with three supporting plates, the top end of the three supporting plates is fixedly provided with a connecting sleeve ring, and the inner wall of the connecting sleeve ring is sleeved with the shaft side at the bottom end of the piston disc.

[0009] Preferably, the bottom of the connecting sleeve ring is fixedly provided with a screw core spring, and the bottom of the screw core spring is fixedly provided on the top of the bottom tray of the piston disc.

[0010] Preferably, the bottom of the upper end connection guide pipe is sleeved with a lower end connection guide pipe, and the lower end connection guide pipe is coaxially arranged with the upper end connection guide pipe.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1、The utility model discloses a piston disc and screw groove cooperate when setting, when the negative pressure in lower end connection guide pipe is greater than or less than normal pressure value range, the piston disc goes up or falls and drives the rotation of pressure stabilizing disc, makes pressure relief port or pressure increasing port with the butt joint of external connection pipe, and this through the carbon dioxide gas of normal air pressure value in external connection pipe is sent into cavity, and is sent out from the communication hole and is supplemented for the air pressure of lower end connection guide pipe, thereby can when negative pressure is unstable, carbon dioxide gas is as gas supply source, and this guarantees the stability of gas supply, and effectively improves the practicability of the device.

[0013] 2、The utility model discloses the setting of pressure stabilizing cylinder, and pressure stabilizing cylinder is equivalent to reversing valve, and piston disc is as power output source, and the positive and negative rotation of pressure stabilizing cylinder is driven through the up and down movement of piston disc, thereby when negative pressure is unstable, the external connection pipe is connected through the rotation of pressure stabilizing cylinder, and therefore can realize the automatic supplement of air pressure and guarantee the stable output air pressure of device to guarantee the normal use of rear-mounted matched device. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structural schematic diagram of combined tee for suction pipe for the utility model;

[0015] Fig. 2 It is an explosion structural schematic diagram of combined tee for suction pipe for the utility model;

[0016] Fig. 3 It is a cross section structural schematic diagram of combined tee for suction pipe for the utility model.

[0017] In the drawing: 1, upper end connection guide pipe;2, pressure stabilizing cylinder;3, cavity;4, communication hole;5, pressure relief port;6, pressure increasing port;7, external connection pipe;8, piston disc;9, screw groove;10, top limit ring;11, air inlet cavity;12, support plate;13, connecting sleeve ring;14, screw core spring;15, lower end connection guide pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments, and all other embodiments obtained by those skilled in the art without creative labor on the basis of the embodiments in the utility model belong to the protection scope of the utility model.

[0019] In the description of the utility model, it needs to explain, the term "upper", "lower", "inner", "outer", "top / bottom end" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, construct and operate with a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the term "installation", "set with", "sleeve set / interface", "connection" and so on, should be understood broadly, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0021] Embodiment, refer to Figs. 1 to 3 A combined tee for suction pipe, comprising an upper end connection pipe 1, a lower end connection pipe 15 is sleeved on the bottom of the upper end connection pipe 1, the lower end connection pipe 15 is coaxially arranged with the upper end connection pipe 1, a top limiting ring 10 is fixed on the inner side wall of the upper end connection pipe 1, and the lower surface of the top limiting ring 10 is tightly combined with the inclined surface outside the upper surface of the stabilizing cylinder 2.

[0022] The lower end connection pipe 15 is connected with the negative pressure device, the carbon dioxide gas connected with the outer connection pipe 7 is used as a supplementary source, the negative pressure device and the carbon dioxide gas are matched to ensure that the gas pressure supplied by the device is always within the normal pressure range.

[0023] Three supporting plates 12 are fixed on the bottom side of the inner wall of the upper end connection pipe 1, a connecting sleeve ring 13 is fixed at the top end of the three supporting plates 12, and the inner wall of the connecting sleeve ring 13 is sleeved on the shaft side of the bottom end of the piston disc 8.

[0024] The supporting frame composed of the supporting plate 12 and the connecting sleeve ring 13 is used as a supporting piece of the piston disc 8.

[0025] A coil spring 14 is fixed at the bottom of the connecting sleeve ring 13, and the bottom of the coil spring 14 is fixed to the top of the bottom tray of the piston disc 8.

[0026] The coil spring 14 is prior art, which will not be described in detail here, and it is stretched by the piston disc 8 descending, and the center end of the coil spring 14 can rotate in cooperation with the threaded groove 9 in the stretching process, and it can be reset when the downward pressure of the piston disc 8 is insufficient.

[0027] The convex top end of the inner wall of the upper terminal lead pipe 1 is tightly attached with a pressure stabilizing cylinder 2, the upper surface of the pressure stabilizing cylinder 2 is provided with four air inlet cavities 11 arranged in a ring array with the piston disc 8 as the axis.

[0028] The inside of the pressure stabilizing cylinder 2 is provided with a cavity 3, the bottom of the cavity 3 is provided with a communication hole 4, the outside of the pressure stabilizing cylinder 2 is symmetrically provided with a pressure relief port 5 and a pressure boosting port 6, and the pressure relief port 5 and the pressure boosting port 6 are communicated with the cavity 3, the side surface of the upper terminal lead pipe 1 is fixedly connected with an external connecting pipe 7, the external connecting pipe 7 is located on the same horizontal plane as the pressure relief port 5 and the pressure boosting port 6, the inner wall of the pressure stabilizing cylinder 2 is connected with the piston disc 8 through a thread groove, the slant surface of the middle part of the piston disc 8 is tightly attached to the slant surface at the bottom end of the pressure stabilizing cylinder 2, the top end shaft of the piston disc 8 is provided with a thread groove 9, and the thread groove 9 is matched with the thread groove of the inner wall of the pressure stabilizing cylinder 2.

[0029] After the negative pressure gas enters from the air inlet cavities 11, the negative pressure gas extrusion can drive the piston disc 8 to descend, the descent of the piston disc 8 can drive the pressure stabilizing cylinder 2 to rotate, and in the normal negative pressure range, the pressure boosting port 6 and the pressure relief port 5 can be located on both sides of the external connecting pipe 7, at this time, the external connecting pipe 7 is blocked with the cavity 3, and the carbon dioxide gas is used as a supplementary air pressure source, when the negative pressure becomes small, the pressure boosting port 6 is connected with the external connecting pipe 7, at this time, because the carbon dioxide gas pressure is greater than the negative pressure gas pressure, the piston disc 8 is closed at the bottom of the pressure stabilizing cylinder 2, and the carbon dioxide gas is used as a main power source, when the negative pressure increases, the convex part of the piston disc 8 is closed at the bottom of the groove inside the pressure stabilizing cylinder 2, so that the piston disc 8 is closed with the slant surface of the pressure stabilizing cylinder 2, and the negative pressure gas is blocked from entering, at this time, the pressure relief port 5 is connected with the external connecting pipe 7, at this time, the carbon dioxide gas is used as a gas supply source, and the carbon dioxide pipeline gas supply amount remains stable, so when the negative pressure is large, because the air inlet amount is stable, the gas flow speed in the negative pressure pipeline also decreases to a normal value.

[0030] When the negative pressure pipeline is connected, the piston disc 8 is affected by the negative pressure gas and descends, the piston disc 8 drives the pressure stabilizing cylinder 2 to rotate after descending, so that the pressure relief port 5 and the pressure boosting port 6 are located on both sides of the external connecting pipe 7, when the negative pressure pipeline air pressure supply is insufficient, the piston disc 8 rises because the carbon dioxide gas pressure is greater than the negative pressure gas pressure, at this time, the pressure boosting port 6 is connected with the external connecting pipe 7;

[0031] When the negative pressure gas pressure is greater than the normal range, the piston disc 8 descends, at this time, the convex part of the side surface of the piston disc 8 is closed with the concave surface inside the pressure stabilizing cylinder 2, air is blocked from entering, at this time, the external connecting pipe 7 is used as a gas supply pipe, because the carbon dioxide supply speed is stable, excessive gas cannot pass through, so the gas pressure in the negative pressure pipeline tends to be in the normal range.

[0032] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A combined tee for a suction tube, comprising an upper end connection (1), characterized in that: The convex top end of the inner wall of the upper end connection guide pipe (1) is tightly attached with a pressure stabilizing cylinder (2), the inside of the pressure stabilizing cylinder (2) is provided with a cavity (3), the bottom of the cavity (3) is provided with a communication hole (4), the outside of the pressure stabilizing cylinder (2) is symmetrically provided with a pressure relief port (5) and a pressure increasing port (6), and the pressure relief port (5) and the pressure increasing port (6) are both in communication with the cavity (3), the side of the upper end connection guide pipe (1) is fixedly connected with an external connecting pipe (7), the external connecting pipe (7) is located on the same horizontal plane as the pressure relief port (5) and the pressure increasing port (6), the inner wall of the pressure stabilizing cylinder (2) is connected with a piston disc (8) through a wire slot, the inclined surface of the middle of the piston disc (8) is tightly attached to the inclined surface at the bottom end of the pressure stabilizing cylinder (2), the top end shaft of the piston disc (8) is provided with a threaded groove (9), and the threaded groove (9) is matched with the wire slot of the inner wall of the pressure stabilizing cylinder (2).

2. The combination tee for a suction tube according to claim 1, wherein The inner side wall of the upper end connection guide pipe (1) is fixedly provided with a top limiting ring (10), and the lower surface of the top limiting ring (10) is tightly attached to the inclined surface outside the upper surface of the pressure stabilizing cylinder (2).

3. The combination tee for a suction tube according to claim 1, wherein The upper surface of the pressure stabilizing cylinder (2) is provided with four air inlet cavities (11), and the four air inlet cavities (11) are arranged in a ring array with the piston disc (8) as the axis.

4. The combination tee for a suction tube according to claim 1, wherein The bottom side of the inner wall of the upper end connection guide pipe (1) is fixedly provided with three supporting plates (12), the top end of each of the three supporting plates (12) is fixedly provided with a connecting sleeve ring (13), and the inner wall of the connecting sleeve ring (13) is sleeved on the shaft side of the bottom end of the piston disc (8).

5. The combination tee for a suction tube according to claim 4, wherein The bottom of the connecting sleeve ring (13) is fixedly provided with a screw core spring (14), and the bottom of the screw core spring (14) is fixedly provided on the top of the bottom tray of the piston disc (8).

6. The combination tee for a suction tube according to claim 1, wherein The bottom of the upper end connection guide pipe (1) is sleeved with a lower end connection guide pipe (15), and the lower end connection guide pipe (15) is coaxially arranged with the upper end connection guide pipe (1).

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