Simple negative pressure switch with locking buckle

Abstract

The simple negative pressure switch comprises a supporting base, a knob and the locking buckle, the supporting base is connected with the knob in a clamping mode, the knob is composed of a knob handle and a rotating shaft, rail grooves are formed in the two sides of the bottom of the knob handle, and the rail grooves are connected with buckles on the two sides of the top of the supporting base in a clamping mode. The locking buckle can be inserted into the track groove and arranged between the two buckles, a first connecting port and a second connecting port are formed in the two sides of the supporting base respectively, and the first connecting port and the second connecting port are both of an intercommunication structure with the supporting base. And a locking buckle is installed, so that the whole negative pressure switch can be locked and fixed.

Description

Technical Field

[0001] The utility model belongs to the field of medical products, and specifically relates to a simple negative pressure switch with a locking buckle that is convenient for adjusting the negative pressure magnitude. Background Art

[0002] The closed suction catheter is a common medical device, generally composed of a suction catheter, a three-way assembly, and a negative pressure switch. One end of the negative pressure switch is respectively connected to the machine end and the suction tube. While breathing and supplying air to the patient for treatment, it is connected to a negative pressure adapter through a negative pressure source, and the respiratory tract of the patient is cleaned and treated by inserting the suction tube. The existing negative pressure switch has a relatively complex structure, cannot effectively adjust the magnitude of the negative pressure, and is inconvenient to use. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a simple negative pressure switch with a locking buckle that is portable and convenient for adjusting the negative pressure.

[0004] To solve the above existing technical problems, the utility model adopts the following scheme: A simple negative pressure switch with a locking buckle, including a support base, a knob, and a locking buckle. The support base is snap-connected to the knob. The knob consists of a knob handle and a rotating shaft. Among them, two track grooves are provided on both sides of the bottom of the knob handle, and the track grooves are snap-connected to the buckles on both sides of the top of the support base. The locking buckle can be inserted into the track groove and placed between the two buckles. Connecting port one and connecting port two are respectively provided on both sides of the support base, and both connecting port one and connecting port two are in a communicating structure with the support base.

[0005] Preferably, through grooves are provided at both ends of the bottom of the knob, and the through grooves can connect connecting port one and connecting port two.

[0006] Preferably, a concave groove is provided at the bottom of the knob, and a through hole is provided on the surface of the support base. The through hole is located between connecting port one and connecting port two, and the concave groove can connect interface one, connecting port two, and the through hole.

[0007] Preferably, a stepped groove is provided in the inner cavity of the support base, and a sealing ring is provided on the stepped groove. The sealing ring is sleeved on the bottom of the knob.

[0008] Preferably, a knob catch point is provided at the bottom of the knob handle.

[0009] Preferably, several induction bumps are provided on the outer edge of the support base.

[0010] Preferably, a ring is installed on the locking buckle, and the ring is sleeved on connecting port one.

[0011] Preferably, the locking buckle is integrally installed on the side of the knob.

[0012] The present utility model adopts the above technical solution to provide a simple negative pressure switch with a locking buckle. Compared with the existing technology, it has the following advantages:

[0013] 1. By closely matching the locking buckle with the track groove, the effect of locking and fixing is achieved.

[0014] 2. By rotating the knob handle, the area of the through holes between the first connection port and the second connection port and the support base can be adjusted, thereby adjusting the magnitude of the negative pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the first embodiment of the present utility model,

[0016] Figure 2 is a partial schematic diagram of the knob of the first embodiment of the present utility model,

[0017] Figure 3 is a partial schematic diagram of the support base of the present utility model,

[0018] Figure 4 is a partial schematic diagram of the locking buckle of the present utility model,

[0019] Figure 5 is a partial schematic diagram of the locked state of the first embodiment of the present utility model,

[0020] Figure 6 is a partial schematic diagram of the unlocked state of the first embodiment of the present utility model,

[0021] Figure 7 is a schematic structural diagram of the second embodiment of the present utility model,

[0022] Figure 8 is a partial schematic diagram of the knob of the second embodiment of the present utility model,

[0023] Figure 9 is a partial schematic diagram of the locked state of the second embodiment of the present utility model,

[0024] Figure 10 is a partial schematic diagram of the unlocked state of the second embodiment of the present utility model,

[0025] Figure 11 is a partial schematic diagram of the locking buckle of the third embodiment of the present utility model.

[0026] In the figure, support base 1, knob 2, locking buckle 3, knob handle 4, rotating shaft 5, track groove 6, buckle 7, first connection port 8, second connection port 9, through hole 10, concave groove 11, step groove 12, sealing ring 13, knob locking point 14, induction bump 15, through slot 16, ring 17. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] AsFigures 1-11 As shown in the figure, a simple negative pressure switch with a locking buckle includes a support base 1, a knob 2 and a locking buckle 3. The support base 1 is snap-connected to the knob 2. The knob 2 is composed of a knob handle 4 and a rotating shaft 5. Among them, two sides of the bottom of the knob handle 4 are provided with track grooves 6, and the track grooves 6 are snap-connected to the buckles 7 on both sides of the top of the support base 1. The locking buckle 3 can be inserted into the track groove 6 and placed between the two buckles 7. One connection port 8 and a connection port 9 are respectively provided on both sides of the support base 1. Both the connection port 8 and the connection port 9 are of an interconnected structure with the support base 1. Both ends of the bottom of the knob 2 are provided with through grooves 16, and the through grooves 16 can communicate the connection port 8 with the connection port 9. Or a concave groove 11 is provided at the bottom of the knob 2. A through hole 10 is provided on the surface of the support base 1, and the through hole 10 is located between the connection port 8 and the connection port 9. The concave groove 11 can connect the interface 8, the connection port 9 and the through hole 10. A step groove 12 is provided in the inner cavity of the support base 1, and a sealing ring 13 is provided on the step groove 12. The sealing ring 13 is sleeved on the bottom of the knob 2. A knob locking point 14 is provided at the bottom of the knob handle 4. A plurality of induction bumps 15 are provided on the outer edge of the support base 1. A ring 17 is installed on the locking buckle 3, and the ring 17 is sleeved on the connection port 8. Or the locking buckle 3 is integrally installed on the side of the knob 2.

[0028] Embodiment 1: As Figures 1-6 shown: The knob 2 is sleeved on the support base 1, so that the track groove 6 is snap-connected to the buckle 7, which is convenient for installing and fixing the knob 2 and the support base 1. A sealing ring 13 is installed on the step groove 12 in the support base 1, which can effectively increase the sealing effect between the knob 2 and the support base 1. After installation, a connection port 8 and a connection port 9 are respectively provided on both sides of the support base 1. Both the connection port 8 and the connection port 9 are interconnected with the support base 1. A through groove 16 is opened on the rotating shaft 5 at the bottom of the support base 1. When the negative pressure switch is in the open state, the connection port 8, the through groove 16 and the connection port 9 will communicate with each other. Then the connection port 8 is connected to the machine end, and the connection port 9 is connected to the suction tube, which is convenient for achieving a suction effect. A knob handle 4 is provided on the knob 2. By rotating the knob handle 4, the position of the rotating shaft 5 can be adjusted, and the contact area between the through groove 16 and the connection port 8 and the connection port 9 will also change, and the magnitude of the negative pressure can be adjusted according to actual needs. When the negative pressure switch is in the closed state, at this time, the knob locking point 14 contacts the induction bump 15, the buckle 7 abuts against one side of the track groove 6, and the through groove 16 is in a sealed state with the connection port 8 and the connection port 9, and the negative pressure stops. A ring 17 is sleeved on the connection port 8, and the locking buckle 3 on the ring 17 is inserted into the track groove 6, so that both sides of the locking buckle 3 abut against the inner wall of the track groove 6 and the buckle 7 respectively. Under the action of the locking buckle 3, a locking effect is achieved on the knob 2 to prevent the knob 2 from rotating.

[0029] Furthermore, concave grooves 11 are provided at both ends of the bottom of the knob 2, and the concave grooves 11 correspond to the first connection port 8 and the second connection port 9 respectively.

[0030] Embodiment 2: As Figures 7-10 shown, a through hole 10 is provided between the first connection port 8 and the second connection port 9. The through hole 10 passes through the surface of the support base 1 and is connected to the concave groove 11. When the knob handle 4 is in a horizontal state with respect to the first connection port 8 and the second connection port 9, both ends of the concave groove 11 are respectively connected to the first connection port 8 and the second connection port 9, realizing a state where the first connection port 8, the second connection port 9, and the through hole 10 are interconnected. When the knob handle 4 is in a vertical state with respect to the first connection port 8 and the second connection port 9, the through hole 10 and the concave groove 11 are not connected to each other, and the entire negative pressure switch is in a closed state. At this time, the locking buckle 3 can be buckled in the track groove 6 to lock the knob 2 and prevent the knob from rotating.

[0031] Furthermore, the locking buckle 3 is integrally installed on the side of the knob 2.

[0032] Embodiment 3: As Figure 11 described, the original split locking buckle 3 is designed to be an integral structure with the knob 2, that is: the locking buckle 3 is designed on the side of the knob 2, eliminating the need to hang the locking buckle 3 and avoiding loss.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A simple negative pressure switch with a locking buckle, comprising a support base (1), a knob (2) and a locking buckle (3), characterized in that: The support base (1) is connected to the knob (2) by snapping, and the knob (2) is composed of a knob handle (4) and a rotating shaft (5), wherein track grooves (6) are provided on both sides of the bottom of the knob handle (4), and the track grooves (6) and buckles (7) on both sides of the top of the support base (1) are mutually snapped, and the locking buckle (3) can be inserted into the track groove (6) and placed between the two buckles (7), and the support base (1) is respectively provided with a connection port 1 (8) and a connection port 2 (9), and the connection port 1 (8) and the connection port 2 (9) are both interconnected with the support base (1).

2. The simple negative pressure switch with a locking buckle according to claim 1, characterized in that: Through slots (16) are provided at both ends of the bottom of the knob (2), and the through slots (16) can connect the first connection port (8) with the second connection port (9).

3. The simple negative pressure switch with a locking buckle according to claim 1, characterized in that: The bottom of the knob (2) is provided with a concave groove (11), the surface of the support base (1) is provided with a through hole (10), the through hole (10) is located between the first connection port (8) and the second connection port (9), and the concave groove (11) can connect the first connection port (8), the second connection port (9) and the through hole (10).

4. The simple negative pressure switch with a locking buckle according to claim 1, characterized in that: The inner cavity of the support base (1) is provided with a step groove (12), a sealing ring (13) is provided on the step groove (12), and the sealing ring (13) is sleeved on the bottom of the knob (2).

5. The simple negative pressure switch with a locking buckle according to claim 1, characterized in that: A knob clamping point (14) is provided at the bottom of the knob handle (4).

6. The simple negative pressure switch with a locking buckle according to claim 1, characterized in that: The outer edge of the support base (1) is provided with a plurality of sensing protrusions (15).

7. The simple negative pressure switch with a locking buckle according to claim 1, characterized in that: The locking buckle (3) is provided with a circular ring (17), which is sleeved on the connecting port 1 (8).

8. The simple negative pressure switch with a locking buckle according to claim 1, characterized in that: The locking buckle (3) is integrally mounted on the side of the knob (2).

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