CN204446980U - A kind of hose blocking-up device - Google Patents

Abstract

The utility model discloses a hose blocking device, which comprises a frame, a rotating arm, a slider, a flexible locking piece, a rotary power device and the like. Suitable for on-off control of small-sized hoses. The technical effect of the utility model patent is that the rotary power device is used to provide power, the slider is constrained by the frame, and the rotating arm drives the slider to move in a straight line, and the slider pushes the hose to the flexible locking piece to complete blocking, and the hose is blocked internally. When the slider returns to the initial position, the inside of the hose is conducted.

Description

A hose blocking device

technical field

The utility model relates to a hose blocking device.

Background technique

Most medical infusions use hoses to connect the infusion bottles and needles. When all the liquid in the infusion bottles has been transfused, if the infusion hoses are not blocked in time, the patient's blood will flow back and accidents will easily occur. At present, most of the solutions to this problem use the traditional roller blocking method, and some use the rotating blocking method.

The roller blocking method is the most widely used method at present. It adopts a part with a slope, and a roller is applied on it. The hose passes between the slope part and the roller. The part of the hose can be adjusted by rolling the roller on the slope part. The flow cross-sectional area, when it needs to be blocked, roll the roller to a certain position to block the hose. This method is mature, but it must be operated manually.

The rotation blocking method is to install a geared motor and a fixed locking piece on the frame, and the hose is placed between a rotating locking piece and a fixed locking piece. When blocking is required, the geared motor drives the locking piece to rotate, so that the rotating locking piece and The clearance of the fixed locking plate is continuously reduced, and the hose is blocked when the geared motor is blocked. This method can achieve the effect of blocking the infusion tube after the infusion is completed by means of automatic detection, but if the deceleration motor is cut off after the power supply is blocked, the elastic deformation of the locking plate and the stress between the deceleration gears will cause the motor to rotate. As a result, the hose will be loosened, making it difficult to achieve a complete blocking effect. If the power is continuously turned on, the geared motor will generate a lot of heat, which is easy to burn out, and the geared motor will increase the difficulty of integration in small devices due to its length .

Utility model content

In order to overcome the technical problem of blocking the hose after the infusion is automatically completed in the case of an infusion monitoring device. The utility model provides a hose blocking device which is safe, reliable, flexible in application and convenient for miniaturization and integration.

In order to realize above-mentioned technical purpose, the technical scheme of the utility model is:

A hose blocking device, including a rotary device, a frame, a slider and a locking part, the rotary device, the slider and the locking part are all fixed on the frame, and the rotary device is connected to the slider and drives the slider The reciprocating movement is used to lock or release the hose. The slider is installed horizontally under the rotary device. There is a protrusion at the bottom of the slider. The protrusion is accommodated in a groove on the frame to make the slider move along the direction of the groove extension. , the locking part is arranged parallel to the slider, and there is a gap for the hose to pass through between the locking part and the slider. When the slider moves to the limit position, it contacts the locking part to lock the hose.

In the aforementioned hose blocking device, the rotary device includes a stepping motor and a rotating arm, one end of the rotating arm is fixed on the rotating shaft of the stepping motor, and a long slot is opened at the other end, A column-shaped protrusion is provided on the top of the slider, and the protrusion is accommodated in the groove and enables the slider to be driven by the rotating arm.

In the aforementioned hose blocking device, the locking part includes a locking groove and a locking piece, the locking piece is fixed in the locking groove and the sliding block contacts and locks when it moves to the limit position. tab to lock the hose.

In the aforementioned hose blocking device, the locking piece is a flexible locking piece.

The technical effect of the utility model is that the device of the utility model is suitable for blocking the hose after the infusion is completed by receiving the signal of the infusion detection equipment in the case of the infusion monitoring equipment.

Below in conjunction with accompanying drawing, the utility model is further described.

Description of drawings

Fig. 1 is an exploded view of the structure of the front isometric view of the utility model;

Fig. 2 is an exploded view of the utility model rear isometric perspective structure;

Fig. 3 is a schematic diagram of the conduction state of the utility model at a positive viewing angle;

Fig. 4 is a schematic diagram of the blocking state of the utility model at a positive viewing angle;

Among them, 10 racks, 20 rotating arms, 30 sliders, 40 flexible locking pieces, and 50 stepping motors.

Detailed ways

The utility model includes a rotary device, a frame, a slider and a locking part, and the rotary device, the slider and the locking part are all fixed on the frame, and the rotary device is connected with the slider and drives the slider to reciprocate to lock or release The hose, the slider is horizontally arranged under the rotary device, a protrusion is provided at the bottom of the slider, and the protrusion is accommodated in a groove on the frame to make the slider move along the direction of the groove extension, and the locking part is parallel to the slider It is provided that a space for passing the hose is reserved between the locking part and the slider, and the slider contacts the locking part to lock the hose when it moves to the limit position.

The slewing device includes a stepping motor and a rotating arm. One end of the rotating arm is fixed on the rotating shaft of the stepping motor, and a long groove is opened at the other end. The top of the slider is provided with a columnar protrusion, which is accommodated in the In the groove and make the slider driven by the rotary arm.

The locking part includes a locking groove and a locking piece, the locking piece is fixed in the locking groove and the slider contacts the locking piece when it moves to an extreme position to lock the hose. The locking piece is a flexible locking piece, which is made of various elastic soft materials such as rubber, polyurethane, and silica gel.

According to the signal output by the infusion monitoring equipment, the rotary power device provides the power required for blocking and conduction, and the rotating arm acts as a transmission to transmit the power to the slider. Due to the constraints of the frame and the rotating arm, the slider can only follow the specified trajectory. Perform linear motion. The hose is placed between the flexible locking piece and the slider. When the distance between the slider and the flexible locking piece touches the hose, the smaller the distance, the smaller the local conduction area of the hose.

When it is necessary to block the hose, the rotary power device rotates clockwise, and the slider moves toward the flexible locking piece to gradually press the hose into the flexible locking piece, and the flexible locking piece elastically deforms. When the slider moves to the specified position, the rotary power device stops working. If the rotary power device reverses slightly, the elastic stress of the flexible locking piece can fill the gap generated during the reverse, and still keep the hose blocked. state.

When it is necessary to conduct the hose, the rotary power device rotates counterclockwise, the slider moves away from the flexible locking piece, the flexible locking piece and the hose return to their original shape, and when the slider moves to the specified position, the rotary power The device stops working and the conduction of the hose is realized.

Claims (4)

1. a hose blocking-up device, it is characterized in that, comprise slewing equipment, frame, slide block and tight lock part, described slewing equipment, slide block and tight lock part are all fixed in frame, slewing equipment connection sliding block also drives slide block move back and forth with locking or decontrol flexible pipe, slide block is horizontally placed on below slewing equipment, slider bottom is provided with a jut, jut is contained in the groove in frame to make slide block move along groove bearing of trend, tight lock part and slide block be arranged in parallel, reserve for the space by flexible pipe between tight lock part and slide block, slide block contacts tight lock part to lock flexible pipe when moving to extreme position.

2. a kind of hose blocking-up device according to claim 1, it is characterized in that, described slewing equipment comprises motor and pivoted arm, one end of described pivoted arm is fixed in the rotating shaft of motor, the other end has the groove of a strip, the top of slide block is provided with the protuberance of a column, and protuberance to be contained in groove and slide block is driven by pivoted arm.

3. a kind of hose blocking-up device according to claim 1, is characterized in that, described tight lock part comprises locking slot and stay, and described stay is fixed in locking slot and slide block contacts stay to lock flexible pipe when moving to extreme position.

4. a kind of hose blocking-up device according to claim 3, is characterized in that, described stay is flexible locking sheet.