CN108030966A

CN108030966A - A kind of intelligence thoracic duction instrument

Info

Publication number: CN108030966A
Application number: CN201810108765.5A
Authority: CN
Inventors: 赵明洁
Original assignee: 赵明洁
Current assignee: Mitaiyun
Priority date: 2018-02-05
Filing date: 2018-02-05
Publication date: 2018-05-15
Anticipated expiration: 2038-02-05
Also published as: CN111494733A; CN108030966B; CN111494734A

Abstract

The present invention relates to the field of medical instrument technology, disclose a kind of intelligent thoracic duction instrument, it is provided with negative pressure device, the liquid feeding end for being connected with drainage tube, the level sensor for sensing hydrops amount in drainage bottle on drainage bottle, for shooting the camera and controller and storage battery of drainage bottle internal state, flow control mechanism is provided with liquid feeding end；Controller can calculate the hydrops increment in drainage bottle by the signal that level sensor is fed back, and the working status of negative pressure device, flow control mechanism can be regulated and controled based on hydrops increment and default drainage flow, drainage time, realize timing drainage, quantitative drainage.This intelligence thoracic duction instrument uses intelligentized design, drainage state can be automatically controlled, it can realize and drain at regular time and quantity, reduce manual operation link, it can avoid the improper adverse effect of manual operation, the drawbacks of hydrops overflows in drainage bottle is avoided at the same time, is particularly suitable for the clinical drainage of a large amount of hydrops in thoracic cavity.

Description

A kind of intelligence thoracic duction instrument

Technical field

The present invention relates to a kind of medical instrument, more particularly to a kind of it is being clinically used for the dress of pleural effusion drainage procedure Put.

Background technology

Pleural effusion is clinically relatively conventional illness, a variety of diseases of lung such as inflammation, malignant tumour, tuberculosis, fungi Etc. can cause pleural effusion, and lung outer disease such as heart failure, hepatic sclerosis, hydropericardium, malignant abdominal tumors, pancreas Inflammation, nephrotic syndrome, malnutrition, thoracic injury etc. are also the common disease factor that pleural effusion produces, when chest hydrops When measuring big, will compressing lungs, heart, patient feels the even respiratory failure of out of breath, uncomfortable in chest, hypoxemia, therefore, during Clinical Processing Pleural effusion must fully be drained first.

Current chest drainage is completed by the drainage system of the compositions such as drainage tube, drainage bottle and negative pressure bottle, Although this kind of drainage system simple structure, function is relatively single, and intelligence degree is relatively low so that drainage process is required for artificially Observed and controlled, hand labor intensity is high and easily careless mistake occurs and influences drainage effect, to face operation bring it is very big Inconvenience.

The content of the invention

It is an object of the invention to provide a kind of easy to use, feature-rich, intelligence degree is high, can avoid drainage process The situation of middle generation, advantageously ensures that and improves the intelligent thoracic duction instrument of clinical drainage effect.

To achieve the above object, the present invention adopts the following technical scheme that：

A kind of intelligence thoracic duction instrument, it is included one and is made using transparent material in the drainage bottle of cylinder, drained Bottle upper end is connected with a negative pressure device, and the top side of drainage bottle is equipped with the liquid feeding end for being used for being connected with drainage tube, in drainage bottle A level sensor for being used to sense hydrops amount in drainage bottle is provided with, the exterior side of drainage bottle is provided with for shooting drainage The camera of bottle internal state, drainage bottle outside are separately provided with controller and storage battery, one stream are provided with the liquid feeding end Speed control mechanism, the controller can obtain the signal of level sensor and cam feedback and controllable negative pressure device and stream The working status of speed control mechanism, controller are separately connected with control panel, wireless transport module and audible-visual annunciator；By control Panel can preset drainage flow, drainage time in the controller, and controller can pass through the signal meter of level sensor continuous feedback The hydrops increment in drainage bottle is calculated, controller can be based on default drainage flow, drainage time and the hydrops increment for calculating acquisition The working status of negative pressure device, flow control mechanism is regulated and controled, realizes timing drainage, quantitative drainage；Controller can be through nothing Line transport module carries out wireless connection with third party device so that third party device can obtain the data grasped in controller simultaneously It can implement remote control to controller, the third party device is included in monitor center control device, smart mobile phone and ward Multimedia equipment；It can be controlled through control panel to controller inlet flow speed regulating command, controller based on flow velocity regulating command The working status of flow control mechanism processed, that is, adjust the hydrops flow velocity in drainage tube.

The controller is equipped with RAM card and data-interface, and RAM card can be directly obtained and calculated in storage control The data gone out；Data-interface is used to export the data in RAM card.

The drainage bottle lower end is connected with a base combination, which is equipped with level meter.

The flow control mechanism is made of a flow velocity valve and an electric machine；The flow velocity valve includes a valve body, A cylindrical valve chamber is equipped with valve body, the both sides of housing, which are respectively equipped with, to be communicated with valve chamber and be used to be connected drainage tube and liquid feeding end Connector；A plunger being axially movable is equipped with valve chamber, two connectors are isolated by plunger when plunger is located at valve chamber lower end, work as column Two connectors will connect when plug is moved up by valve chamber lower end and connection is more and more abundant, when plunger is moved upward to valve chamber upper end Two connectors connect completely；Valve body upper end is equipped with a screw hole communicated with valve chamber, a screw rod and screw hole thread fitting, the lower end of screw rod It is fixedly connected with plunger, the upper end of screw rod is fixedly connected with the knob above valve body；Electric machine includes one and controller Connected slowspeed machine, controller can control steering and the rotation angle of slowspeed machine；It is connected with the output shaft of slowspeed machine One rotary sleeve, defines a clamping seat for being used for clamping knob in rotary sleeve, clamping seat can be moved along rotary sleeve axis but not Slipped from rotary sleeve tail end, the reseting shrapnel for driving clamping seat to be reset to rotary sleeve tail end is equipped with rotary sleeve；Slowspeed machine with One shelves are fixedly connected, and shelves, which are equipped with, to be used to fix the catch mechanism combined with valve body；When catch mechanism and valve body group After conjunction, knob clamping can be driven knob by clamping seat.

The operating method and operation principle of this intelligence thoracic duction instrument be：

Drainage bottle is placed on ground, drainage tube is connected with liquid feeding end, implements to puncture using conventional drainage procedure, will The front end of the drainage tube chamber to be drained with patient is simultaneously fixed drainage tube front end, will want to draw according to patient profiles The drainage flow and drainage time for flowing hydrops are preset in the controller through control panel；When reaching drainage time, controller will make Negative pressure device starts to work and provides negative pressure for drainage bottle, while the working status for regulating and controlling flow control mechanism makes drainage tube with drawing Bottle connection is flowed, drains just start at this time, that is, realizes that timing drains；In drainage process, level sensor is anti-in real time to controller Present drainage bottle in hydrops liquid level situation of change, controller by the hydrops increment calculated compared with default drainage flow, When reaching default drainage flow, controller will make negative pressure device be stopped, and the working status for regulating and controlling flow control mechanism makes to draw Flow tube keeps cut-off state, prevents the hydrops in drainage bottle and drainage tube from flowing back, that is, realizes quantitative drainage；In drainage process, Medical staff or families of patients can understand real-time drainage situation by monitor center control device and smart mobile phone, and can be to control Device processed sends corresponding instruction to adjust drainage state.

Compared with existing conventional drainage system, it has the advantages that this intelligence thoracic duction instrument：

This intelligence thoracic duction instrument uses intelligentized design, can automatically control the progress and end of drainage, can realize Drain at regular time and quantity, reduce manual operation link, the improper adverse effect of manual operation can be avoided, avoided at the same time The drawbacks of hydrops easily overflows in drainage bottle during traditional negative pressure drainage；Its control to drainage time and drainage flow is based on intelligence System is achieved, and it is more accurate to compare artificial observation operation, advantageously ensures that drainage effect；This intelligence thoracic duction instrument can Wireless connection is carried out with third party device so that medical staff and entourage know that drainage carry out situation is quick much sooner, Adjusting to drainage state is more flexibly convenient；At the same time, when this intelligence thoracic duction instrument is being clinically used for a large amount of thoracic cavities When hydrops drains, repeatedly drainage parameter can be set, and intelligent thoracic duction instrument is according to default drainage parameter to automatic complete at the same time Into each drainage procedure, the advantage shown is more prominent.

Brief description of the drawings

Fig. 1 is the structure diagram of intelligent thoracic duction instrument.

Fig. 2 is intelligent thoracic duction instrument further improved structure diagram.

Fig. 3 is the control principle drawing of intelligent thoracic duction instrument.

Fig. 4 is the structure diagram of flow control mechanism.

Fig. 5 is the separate state diagram of electric machine and flow velocity valve in flow control mechanism.

In figure, 1, level sensor, 2, control panel, 3, controller, 4, wireless transport module, 5, audible-visual annunciator, 6, Storage battery, 7, camera, 8, drainage tube, 9, flow control mechanism, 10, liquid feeding end, 11, negative pressure device, 12, drainage bottle, 13, water Level, 14, base, 15, data-interface, 16, RAM card, 17, connector, 18, catch mechanism, 19, plunger, 20, valve chamber, 21, spiral shell Hole, 22, rotary sleeve, 23, shelves, 24, slowspeed machine, 25, reseting shrapnel, 26, clamping seat, 27, knob, 28, screw rod, 29, Valve body.

Embodiment

A kind of intelligent thoracic duction instrument disclosed by the invention, it includes one using drainage bottle 12 made of transparent material； In cylinder, inner volume is used to accommodate drainage hydrops the drainage bottle 12；It is negative that 12 upper end of drainage bottle is connected with one Pressure device 11, the top side of the drainage bottle 12 are equipped with the liquid feeding end 10 for being used for connecting drainage tube 8, the liquid feeding end 10 On be provided with a flow control mechanism 9 for being used to adjust drainage tube 8 and 12 connected state of drainage bottle；Set in the drainage bottle 12 It is equipped with a level sensor 1 for being used to sense hydrops amount in drainage bottle 12；The 12 outside side of drainage bottle, which is provided with, to be used for The camera 7 of 12 internal state of drainage bottle is shot, the outside of drainage bottle 12 is separately provided with controller 3 and storage battery 6；The control Device 3 can obtain the signal that level sensor 1 is fed back with camera 7 and the work of controllable negative pressure device 11 and flow control mechanism 9 Make state, controller 3 is separately connected with control panel 2, wireless transport module 4 and audible-visual annunciator 5；It can be incited somebody to action by control panel 2 Drainage flow, drainage time are preset in controller 3, and controller 3 can be calculated by the signal of 1 continuous feedback of level sensor to be drawn The hydrops increment in bottle 12, i.e., actual drainage flow are flowed, controller 3 can be based on default drainage flow, drainage time and calculate to obtain Hydrops increment the working status of negative pressure device 11, flow control mechanism 9 is regulated and controled, realize timing drainage, quantitative drainage； Controller 3 can carry out wireless connection through wireless transport module 4 and third party device so that third party device can obtain controller The data grasped in 3 simultaneously can to controller 3 implement remote control, the third party device include monitor center control device, Smart mobile phone and ward inner multimedia equipment；Can be to 3 inlet flow speed regulating command of controller through control panel 2, controller 3 can base Carry out the working status of coutroi velocity control mechanism 9 in flow velocity regulating command, that is, adjust the hydrops flow velocity in drainage tube 8.

Drainage bottle 12 is placed on ground, drainage tube 8 is connected with liquid feeding end 10, implements to wear using conventional drainage procedure Thorn, i.e., implement to fix, according to patient's feelings by the front end of drainage tube 8 and patient's chamber to be drained and to 8 front end of drainage tube The drainage flow for wanting drainage hydrops and drainage time are preset in controller 3 by condition through control panel 2；When reaching drainage time When, controller 3 will make negative pressure device 11 start to work and be that drainage bottle 12 provides negative pressure, while regulate and control flow control mechanism 9 Working status makes drainage tube 8 be tended to remain on drainage bottle 12, drains just start at this time, that is, realizes that timing drains；Draining During, the liquid level situation of change of the hydrops into 3 Real-time Feedback drainage bottle 12 of controller of level sensor 1, controller 3 will calculate The hydrops increment gone out is compared with default drainage flow, and when reaching default drainage flow, controller 3 will stop negative pressure device 11 Only work, and the working status for regulating and controlling flow control mechanism 9 makes drainage tube 8 be disconnected with drainage bottle 12, at this time the product in drainage tube 8 Liquid is no longer flowed into drainage bottle 12, and can prevent the hydrops in drainage bottle 12 and drainage tube 8 from flowing back, that is, realizes quantitative drainage； Negative pressure device 11, level sensor 1, camera 7, controller 3 and the audible-visual annunciator 5 provides operating current by power supply.

This intelligence thoracic duction instrument can be referred in drainage process by control panel 2 to 3 inlet flow velocity modulation section of controller Order, such as flow velocity increase or flow velocity reduce, and controller 3 is according to the flow velocity regulating command obtained come to flow control mechanism 9 Working status is regulated and controled, that is, is adjusted the connected state of drainage tube 8 and drainage bottle 12, increased the hydrops flow velocity in drainage tube 8 Or reduce, it thus can ensure that drainage effect and can preventing drains and too fast bring discomfort to patient.

This intelligence thoracic duction instrument can be controlled in clinical drainage process by wireless transport module 4 and monitor center Equipment is matched, and thus medical staff can easily obtain real-time drainage situation by monitor center control device, and can root Remote control is carried out to controller 3 according to drainage situation, i.e., adjusts drainage state in time；At the same time, can be with by smart mobile phone Intelligent thoracic duction instrument is matched through wireless transport module 4, and thus one, even if medical staff is not or not the side of drainage system Side, the carry out situation and convenient more drainage states that can also understand drainage in real time are adjusted；In addition, with ward environment Constantly lifting, equipped with multimedia equipments such as television sets in some wards, this intelligence thoracic duction instrument also can with it is more in ward Media device carries out wireless data transmission, and thus one, when the case for implementing drainage in ward is more, the medical care people when making the rounds of the wards Member only can need to easily understand the drainage situation of each case through multimedia equipment, convenient and efficient.

This intelligence thoracic duction instrument is in Clinical practice, and if case is a large amount of pleural effusions, such case generally requires Drain by several times, thus the drainage time drained every time, drainage flow can be preset in controller 3, controller 3 can be drawn as default Flow data is drained every time automatically, significantly reduces manual operation burden, and it is improper caused to it also avoid manual operation Risk.

In this intelligence thoracic duction instrument, negative pressure device 11 is connected with 12 upper end of drainage bottle, it is used for for drainage bottle 12 Inside provides negative pressure, and the setting purpose based on negative pressure device 11, it uses existing negative pressure pump installation to be implemented, and with Technology is continuously improved, and partial negative pressure pump installation has the function of constant pressure output, selects this kind of negative pressure pump installation to be applied to this intelligence In energy thoracic duction instrument, the Clinical practice effect of this intelligence thoracic duction instrument can be further lifted.

In this intelligence thoracic duction instrument, flow control mechanism 9 is installed on liquid feeding end 10, it is mainly used for control and draws Flow tube 8 and the connected state of drainage bottle 12, can play the start and stop of control drainage and adjust the function of drainage speed；From this point of view, Flow control mechanism 9 can use existing solenoid valve, and in the prior art, controller 3 controls answering for electromagnetism valve opening size Be it is highly developed with it is common.

In this intelligence thoracic duction instrument, controller 3 need to possess to be calculated by the signal of 1 continuous feedback of level sensor Go out the functional requirement of the hydrops increment in drainage bottle 12, in clinical drainage process, hydrops amount is mostly retouched with bulk form State, the liquid level that level sensor 1 can feed back hydrops in drainage bottle 12 to controller 3 changes, therefore controller 3 can obtain the drainage phase Between hydrops liquid level increment, simultaneously because drainage bottle 12 in cylinder and its cross-sectional area be constant with clear and definite, therefore Controller 3 calculates hydrops increment in the case where grasping above-mentioned basic data and is easily achieved.

In this intelligence thoracic duction instrument, controller 3 is connected with audible-visual annunciator 5, and intelligent thoracic duction instrument is facing Bed can express drainage state in drainage process by audible-visual annunciator 5, be expressed not such as by the indicator light of different colours In drainage, drainage, the states such as end are drained, may be used also when drainage state changes or intelligent thoracic duction instrument breaks down Timely fed back to operator by sound.

This intelligence thoracic duction instrument uses intelligentized design, can automatically control the progress and end of drainage, can realize Drain at regular time and quantity, reduce manual operation link, the improper adverse effect of manual operation can be avoided；When it is to drainage Between and the control of drainage flow be to be achieved based on intelligence system, it is more accurate to compare artificial observation operation, advantageously ensures that and draws Flow effect；This intelligence thoracic duction instrument can carry out wireless connection with third party device so that medical staff and entourage obtain Know that drainage carry out situation is quick much sooner, the adjusting to drainage state is more flexibly convenient；At the same time, when this intelligence thoracic cavity Drainage system can set repeatedly drainage parameter, intelligent thoracic duction instrument at the same time when being clinically used for a large amount of drain pleural effusions According to default drainage parameter to being automatically performed each drainage procedure, the advantage shown is more prominent.

Furthermore, the controller 3 is equipped with RAM card 16 and data-interface 15, and RAM card 16 can store control The data for directly obtaining and calculating in device 3, for example, obtained by camera 7 drainage process video data, based on level sensing Hydrops increment delta data, drainage flow and drainage time etc. drain preset data in the drainage bottle 12 that device feedback signal is calculated Etc.；Data-interface 15 is used to export the data in RAM card 16, to facilitate medical institutions centrally stored, improves medical care precess Trackability.

Furthermore, connection is combined in 12 lower end of drainage bottle with a base 14, which is equipped with level meter 13, thus one, base 14 can be that drainage bottle 12 provides and stablize strong support, avoid the drainage bottle 12 in drainage process from skewing Or tilt；Base 14 is equipped with level meter 13, in Clinical practice, can according to level meter 13 come adjustment base 14 to horizontal State, can improve the accuracy of liquid level sensor output signal to greatest extent, improve the accuracy quantitatively drained in this case.

Furthermore, in foregoing intelligent thoracic duction instrument, flow control mechanism 9 is installed on liquid feeding end 10, The start and stop of control drainage can be played and adjust the function of drainage speed, illustrated in the foregoing written description, flow control mechanism 9 can Using solenoid valve, but there are the problem of be that the hydrops produced in thoracic cavity is often containing plurality of impurities and in thick, it is easy to makes Electromagnetic valve work is unstable, degree of regulation declines, and is even blocked when serious, so that frequent replacement solenoid valve is needed, but electromagnetism The of a relatively high precision apparatus of valve price so that the use cost of this intelligence thoracic duction instrument significantly improves；At the same time, more It is more professional operation to change battery valve, and step is relatively complicated so that this intelligence thoracic duction instrument uses underaction； For these reasons, present invention also offers a kind of scientific structure, use cost is cheap, is extremely suitable for drawing in aforementioned intelligent thoracic cavity The flow control mechanism 9 practiced in stream device；The concrete structure of the flow control mechanism 9 is：

The flow control mechanism 9 includes a flow velocity valve and an electric machine is formed；The flow velocity valve includes a valve Body 29, is equipped with a cylindrical valve chamber 20 in valve body 29, and the both sides of housing, which are respectively equipped with, to be communicated with valve chamber 20 and be used to be connected and draw Flow tube 8 and the connector 17 of liquid feeding end 10；A plunger 19 being axially movable is equipped with valve chamber 20, when plunger 19 is located under valve chamber 20 Two connectors 17 are isolated by plunger 19 during end, and when plunger 19 is moved up by 20 lower end of valve chamber, two connectors 17 will connect and connection is got over Come more abundant, when plunger 19 is moved upward to 20 upper end of valve chamber, two connectors 17 connect completely；29 upper end of valve body is equipped with one and valve The screw hole 20 that chamber 20 communicates, a screw rod 28 and 20 thread fitting of screw hole, the lower end of screw rod 28 are fixedly connected with plunger 19, screw rod 28 Upper end be fixedly connected with the knob 27 positioned at the top of valve body 29；Electric machine includes a slowspeed machine being connected with controller 3 24, controller 3 can control steering and the rotation angle of slowspeed machine 24；A rotary sleeve is connected with the output shaft of slowspeed machine 24 22, define a clamping seat 26 for being used for clamping knob 27 in rotary sleeve 22, clamping seat 26 can be moved along 22 axis of rotary sleeve but It will not be slipped from 22 tail end of rotary sleeve, the reseting shrapnel for driving clamping seat 26 to be reset to 22 tail end of rotary sleeve is equipped with rotary sleeve 22 25；Slowspeed machine 24 is fixedly connected with a shelves 23, and shelves 23, which are equipped with, to be used to fix the clamping machine combined with valve body 29 Structure 18；After catch mechanism 18 is combined with valve body 29,27 clamping of knob can be driven knob 27 to rotate by clamping seat 26.

Thus one, after electric machine and flow velocity valve are combined, utilize controller 3 to control slowspeed machine 24 Working status, slowspeed machine 24 can be rotated by 26 drive knob 27 of clamping seat, thus the position of pilot plunger 19, be risen To adjusting drainage tube 8 and 10 connected state of liquid feeding end and adjusting drainage speed purpose；For first, structure used by flow velocity valve It is simple exquisite, be not susceptible to the situation that degree of regulation is reduced and blocked, secondly for, flow velocity valve and electric machine are set using combining Meter, and the separated operation of assembling is extremely simple, even if flow velocity valve is there is a situation where precision reduction or blocks, replaces also very square Just, ordinary person is operable, and electric machine can be used persistently；

Flow control mechanism 9 provided by the present invention is simple in structure, and combination is convenient, and use cost is cheap, flow-rate adjustment essence Degree is high, corresponding fast, can overcome the shortcomings of that conventional similar product is shown.

Claims

1. a kind of intelligence thoracic duction instrument, including a use transparent material are made and exist in the drainage bottle of cylinder, its feature In：The drainage bottle upper end is connected with a negative pressure device, the top side of drainage bottle be equipped be used to being connected with drainage tube into Liquid end, a level sensor for being used to sense hydrops amount in drainage bottle, the exterior side setting of drainage bottle are provided with drainage bottle The camera of shooting drainage bottle internal state is useful for, separately controller and storage battery, the feed liquor are provided with outside drainage bottle It is provided with a flow control mechanism on end, the controller can obtain the signal of level sensor and cam feedback and controllable The working status of negative pressure device and flow control mechanism processed, controller are separately connected with control panel, wireless transport module and acousto-optic Alarm；Drainage flow, drainage time can be preset in the controller by control panel, controller can be connected by level sensor The signal of continuous feedback calculates the hydrops increment in drainage bottle, and controller can be based on default drainage flow, drainage time and calculating The hydrops increment of acquisition regulates and controls the working status of negative pressure device, flow control mechanism, realizes timing drainage, quantitatively draws Stream；Controller can carry out wireless connection through wireless transport module and third party device so that third party device can obtain control The data grasped in device simultaneously can to controller implement remote control, the third party device include monitor center control device, Smart mobile phone and ward inner multimedia equipment；It is able to can be based on to controller inlet flow speed regulating command, controller through control panel Flow velocity regulating command carrys out the working status of coutroi velocity control mechanism, that is, adjusts the hydrops flow velocity in drainage tube.

A kind of 2. intelligent thoracic duction instrument according to claim 1, it is characterised in that：The controller is equipped with interior Deposit card and data-interface, the data that RAM card can be directly obtained and calculated in storage control；Data-interface is used for memory Data export in card.

A kind of 3. intelligent thoracic duction instrument according to claim 1, it is characterised in that：The drainage bottle lower end and one Base combination connects, which is equipped with level meter.

A kind of 4. intelligent thoracic duction instrument according to claim 1, it is characterised in that：The flow control mechanism by One flow velocity valve and an electric machine are formed；The flow velocity valve includes a valve body, and a cylindrical valve chamber, housing are equipped with valve body Both sides be respectively equipped with and communicate and be used for the connector for being connected drainage tube and liquid feeding end with valve chamber；It is axially movable in valve chamber equipped with one Plunger, when plunger is located at valve chamber lower end, two connectors are isolated by plunger, two connectors when plunger is moved up by valve chamber lower end It will connect and connection is more and more abundant, two connectors connect completely when plunger is moved upward to valve chamber upper end；Valve body upper end is equipped with One screw hole communicated with valve chamber, a screw rod and screw hole thread fitting, the lower end of screw rod are fixedly connected with plunger, the upper end of screw rod and Knob above valve body is fixedly connected；Electric machine includes a slowspeed machine being connected with controller, and controller can control The steering of slowspeed machine and rotation angle；A rotary sleeve is connected with the output shaft of slowspeed machine, a use is defined in rotary sleeve In the clamping seat of clamping knob, clamping seat can be moved along rotary sleeve axis but not slipped from rotary sleeve tail end, be set in rotary sleeve There is the reseting shrapnel for driving clamping seat to be reset to rotary sleeve tail end；Slowspeed machine is fixedly connected with a shelves, is set in shelves It is useful for fixing the catch mechanism combined with valve body；After catch mechanism is combined with valve body, clamping seat can band by knob clamping Dynamic knob.