CN214911738U

CN214911738U - Locking function system of CP1100 injection pump

Info

Publication number: CN214911738U
Application number: CN202121021107.6U
Authority: CN
Inventors: 曹婷婷
Original assignee: Zhu Nannan
Current assignee: Zhu Nannan
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-11-30
Anticipated expiration: 2031-05-13

Abstract

The utility model discloses a locking function system of CP1100 syringe pump, include: the locking control module, locking control module's output end signal connection has display module and alarm module, and locking control module's input end signal connection has detection module and input module to locking control module two-way signal connection has storage module, locking control module includes singlechip and executing device, and the singlechip is 51 singlechips, and executing device includes frame, advancing mechanism, mechanical variable speed formula drive mechanism, scram drive mechanism and power take off mechanism, and advancing mechanism, mechanical variable speed formula drive mechanism, scram drive mechanism and power take off mechanism all install in the frame. The locking function system of the CP1100 injection pump forms a synchronous action of various emergency functions through the matching of the locking control module, the input module, the display module, the alarm module, the detection module and the storage module, can effectively prevent excessive injection, and greatly improves the safety of the injection process.

Description

Locking function system of CP1100 injection pump

Technical Field

The utility model relates to an injection pump technical field specifically is a locking function system of CP1100 injection pump.

Background

The syringe pump is also called a screw pump because it is composed of a stepping motor and its driver, a screw, a holder, and the like, and has a screw and a nut that reciprocate. The nut is connected with a piston of the injector, liquid medicine is contained in the injector, high-precision and stable non-pulsating liquid transmission is realized, the injection pump is used for injecting medicine with high precision, and the purpose is to prevent the damage to the body of a patient caused by excessive medicine injection.

(1) The driving motor of the present syringe pump is controlled by a CPU, an electronic instrument inside the syringe pump runs under a control system, when the electronic instrument and the system are in failure, the driving motor can be caused to run abnormally, so that the stroke of the syringe propulsion is too long, the amount of the injected medicine is excessive, the existing equipment lacks an immediate and rapid failure emergency function, and the safety is poor;

(2) at present, a driving motor of an injection pump rotates to generate a pulse signal which is fed back to a CPU, the CPU controls the voltage of the driving motor according to the feedback to adjust the rotating speed, the injection speed is completely determined by a system in such a way, and when the driving motor abnormally operates due to the operation failure of the system, the situation that the injection is excessive and medical staff cannot react immediately can occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a locking function system of CP1100 syringe pump to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a system for locking function of a CP1100 syringe pump, comprising: the locking control module, locking control module's output end signal connection has display module and alarm module, and locking control module's input end signal connection has detection module and input module to locking control module bidirectional signal connection has storage module.

Preferably, the locking control module comprises a single chip microcomputer and an execution device, the single chip microcomputer is 51, the execution device comprises a rack, a propelling mechanism, a mechanical variable-speed transmission mechanism, an emergency stop transmission mechanism and a power output mechanism, the propelling mechanism, the mechanical variable-speed transmission mechanism, the emergency stop transmission mechanism and the power output mechanism are all mounted on the rack, and the propelling mechanism and the power output mechanism are connected through the mechanical variable-speed transmission mechanism and the emergency stop transmission mechanism.

Preferably, advancing mechanism includes the spacing guide arm of polygon, push pedal, a spacing section of thick bamboo, screw sleeve and hollow lead screw, the both ends of the spacing guide arm of polygon respectively with the both sides fixed connection of frame, and on the spacing guide arm of polygon was located to the hollow lead screw cover, the spacing guide arm of polygon and hollow lead screw sliding fit are that the top of hollow lead screw one end is provided with the push pedal, and hollow lead screw overcoat is equipped with screw sleeve, screw sleeve's one end is rotated and is connected with a spacing section of thick bamboo, lateral wall fixed connection on one side of the one end of a spacing section of thick bamboo and frame.

Preferably, the mechanical variable-speed transmission mechanism comprises an input large gear, a driven shaft, an output small gear, a joint sleeve, a push-pull shaft, an input small gear, a push-pull sleeve part, an output large gear and a speed regulating motor, wherein the input large gear and the input small gear are respectively fixedly sleeved at two ends of the screw rod sleeve, the upper sides of the input large gear and the input small gear are respectively engaged and connected with the output small gear and the output large gear, the driven shaft penetrates through the middle of the output small gear and the output large gear, the driven shaft is rotatably connected with the output small gear and the output large gear, the joint sleeve is arranged between the output small gear and the output large gear, one sides of the output small gear and the output large gear, which are close to the joint sleeve, are respectively provided with a first friction ring piece and a second friction ring piece, the joint sleeve comprises a third friction ring piece, an inner cylinder and an outer cylinder, and the two ends of the inner cylinder are respectively provided with a third friction ring piece, and the inner cylinder is sleeved on the driven shaft in a sliding manner, the outer cylinder is sleeved outside the inner cylinder in a rotating manner, one side of the outer cylinder is fixedly connected with one end of a push-pull sleeve part, the other end of the push-pull sleeve part is of a spiral cylinder structure, a push-pull shaft penetrates through the middle of the spiral cylinder structure of the push-pull sleeve part, a spiral groove is formed in the outer wall of the push-pull shaft, the structure of the spiral groove is matched with that of the spiral cylinder structure, one end of the push-pull shaft is coaxially connected with a speed regulating motor, and the speed regulating motor is fixedly installed on the rack.

Preferably, the emergency stop transmission mechanism comprises an emergency stop push rod, a limiting rod, a supporting plate, a ring plate rotating drum, a compression spring, a telescopic rod, a first friction plate, a second friction plate and a transmission sliding drum, one side of the first friction plate is fixedly connected with one end of the driven shaft, the other side of the first friction plate is provided with the second friction plate in an aligning way, one side of the second friction plate is fixedly connected with one end of the transmission sliding drum, the transmission sliding drum is aligned with the axial lead of the driven shaft, the other end of the transmission sliding drum is connected with the power output mechanism in a sliding way, the ring plate rotating drum is rotatably sleeved on the outer wall of the transmission sliding drum, one side of the ring plate rotating drum is connected with the supporting plate through the compression spring, the telescopic rod penetrates through the middle of the compression spring, the two ends of the telescopic rod are respectively fixedly connected with the ring plate rotating drum and the supporting plate, one side of the ring plate rotating drum, far away from the compression spring, is hinged with one end of the emergency stop push rod, one end of the emergency stop push rod protrudes out of the outer wall of the rack, a strip-shaped hole is formed in the middle of the emergency stop push rod, a limiting rod penetrates through the strip-shaped hole, and one end of the limiting rod is fixedly connected with the rack.

Preferably, the power output mechanism comprises a worm, an output shaft, a worm wheel and a driving motor, one end of the output shaft is rotatably connected with the rack, one end of the output shaft is inserted into the cavity of the transmission sliding barrel and is in sliding fit with the transmission sliding barrel, the worm wheel is fixedly sleeved outside the output shaft, one side of the worm wheel is connected with the worm in a meshed mode, one end of the worm is coaxially connected with the driving motor, and the driving motor is fixedly installed on the rack.

Preferably, the input module is a key, the display module is a nixie tube, the alarm module is a micro-speaker, and the key, the nixie tube and the micro-speaker are respectively in signal connection with an I/O port of the single chip microcomputer.

Preferably, the detection module comprises an injection pressure sensor, a medicine exhaustion sensor, a voltage sensor and a motor fault sensor, the injection pressure sensor is arranged on the front side of the push plate, and the medicine exhaustion sensor, the voltage sensor and the motor fault sensor are arranged on the frame.

Preferably, the storage module comprises a main hard disk and a backup hard disk, and the main hard disk and the backup hard disk are respectively in signal connection with an I/O port of the single chip microcomputer.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the locking function system of the CP1100 injection pump forms a synchronous action of various emergency functions through the matching of the locking control module, the input module, the display module, the alarm module, the detection module and the storage module, can effectively prevent excessive injection caused by system faults, and greatly improves the safety of the injection process;

(2) in the utility model, the output pinion or the output gear wheel can be respectively meshed with the input gear wheel or the input pinion for transmission under the adjustment of the joint sleeve, and the transmission mode ensures that the pushing speed of the propelling mechanism can be adjusted by the mechanical speed;

(3) the utility model discloses in, first friction disc and second friction disc in close contact with under compression spring's elastic force effect can utilize frictional connection to realize connecting the transmission, and then let the output shaft can pass to the driven shaft with power, and first friction disc can promote and first friction disc separation by the scram push rod, when the system breaks down and leads to driving motor abnormal operation, the operator can manually break the scram push rod off with the fingers and thumb, makes advancing mechanism's power disconnected rapidly, prevents to impel the injection excessive to it is safer.

Drawings

Fig. 1 is a system diagram of a locking function system of a CP1100 syringe pump according to the present invention;

fig. 2 is a diagram showing the details of a control module of a locking function system of a CP1100 syringe pump according to the present invention;

fig. 3 is a front view of a locking function system actuator of a CP1100 syringe pump according to the present invention;

fig. 4 is a cross-sectional view of a locking feature system engagement sleeve of a CP1100 syringe pump of the present invention;

fig. 5 is a cross-sectional view of a push-pull sleeve member of a locking function system of a CP1100 syringe pump of the present invention;

fig. 6 is a cross-sectional view of the output shaft of the locking function system of the CP1100 syringe pump of the present invention;

fig. 7 is a cross-sectional view of a driven shaft of a locking function system of a CP1100 syringe pump according to the present invention;

fig. 8 is a side view of the power take-off mechanism of the locking function system of the CP1100 syringe pump of the present invention.

In the figure: 1. an input module, 2, a display module, 3, a locking control module, 31, a single chip microcomputer, 32, an execution device, 321, a rack, 322, a propelling mechanism, 3221, a limit guide rod, 3222, a push plate, 3223, a limit cylinder, 3224, a lead screw sleeve, 3225, a hollow lead screw, 323, a mechanical variable transmission mechanism, 3231, an input large gear, 3232, a driven shaft, 3233, an output small gear, 32331, a first friction ring piece, 3234, a joint sleeve, 32341, a third friction ring piece, 32342, an inner cylinder, 32343, an outer cylinder, 3235, a push-pull shaft, 3236, an input small gear, 3237, a push-pull sleeve piece, 3238, an output large gear, 32381, a second friction ring piece, 3239, a speed regulating motor, 324, an emergency stop transmission mechanism, 3241, an emergency stop transmission rod, 3242, a limit rod, 3243, a support plate, 3244, a ring plate, a rotating cylinder, 3245, a compression spring, 3246, a telescopic rod, a friction plate, 3247, a first friction plate, 3248 and a second friction plate, 3249. the device comprises a transmission sliding barrel 325, a power output mechanism 3251, a worm, 3252, an output shaft 3253, a worm wheel 3254, a driving motor 4, a detection module 5, an alarm module 6 and a storage module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a system for locking function of a CP1100 syringe pump, comprising: the locking control module 3, the output end signal connection of locking control module 3 has display module 2 and alarm module 5, and the input end signal connection of locking control module 3 has detection module 4 and input module 1, and locking control module 3 two-way signal connection has storage module 6.

Through the cooperation of locking control module 3 and input module 1, display module 2, alarm module 5, detection module 4 and storage module 6, form multiple emergent function synchronization, can effectually prevent that system's trouble and injection that causes are excessive, very big improvement injection process's security.

Hundred digit locking procedure for CP1100 syringe pump: when the hundred digits of the nixie tube displaying the speed show "-", the hundred digits representing the current speed are set to be in a locking state, and the unlocking mode is that an inverted V-shaped key arranged on the speed hundred digits is pressed for three times continuously, in the unlocking process, the inverted V-shaped key is arranged when the speed hundred digits are pressed for the first time, the nixie tube displaying the speed E, the inverted V-shaped key is arranged when the speed hundred digits are pressed for the second time, the nixie tube displaying the speed L, the current-period speed hundred digits are displayed for the third time, and if the current speed is less than 100m/h, 0 is displayed on the hundred digits; in the process, after the last time of pressing the speed hundred-digit setting key A, the process waits for 25s, the hundred-digit display nixie tube displays "-" and continues for 5s, and after the 5s duration is finished, the hundred-digit setting is automatically locked. When the current speed is higher than 100m/h, the hundred digits display the hundred digits of the current speed, when the current speed is lower than 100ml/h, the hundred digits display a locking mark "-", under the condition that unlocking is not performed, a V-shaped mark of a hundred-digit setting key is pressed, the hundred-digit display nixie tube displays "-", the duration lasts for 2s, after the duration of 2s, if the current speed is higher than 100ml/h, the hundred digits of the current speed are displayed by the hundred-digit speed display nixie tube, and if the speed is lower than 100m/h, the hundred-digit speed nixie tube displays "_".

The locking control module 3 comprises a single chip microcomputer 31 and an execution device 32, the single chip microcomputer 31 is a 51 single chip microcomputer, the execution device 32 comprises a rack 321, a propelling mechanism 322, a mechanical speed-change transmission mechanism 323, an emergency stop transmission mechanism 324 and a power output mechanism 325, the propelling mechanism 322, the mechanical speed-change transmission mechanism 323, the emergency stop transmission mechanism 324 and the power output mechanism 325 are all installed on the rack 321, and the propelling mechanism 322 and the power output mechanism 325 are connected through the mechanical speed-change transmission mechanism 323 and the emergency stop transmission mechanism 324; the single-chip 31 is able to cooperate with all other modules or instruments, while the actuator 32 is able to precisely control the amount of medicament to be advanced for injection.

The propelling mechanism 322 comprises a polygonal limiting guide rod 3221, a push plate 3222, a limiting cylinder 3223, a screw rod sleeve 3224 and a hollow screw rod 3225, wherein two ends of the polygonal limiting guide rod 3221 are respectively and fixedly connected with two sides of the rack 321, the hollow screw rod 3225 is sleeved on the polygonal limiting guide rod 3221, the polygonal limiting guide rod 3221 is in sliding fit with the hollow screw rod 3225, the push plate 3222 is arranged at the top of one end of the hollow screw rod 3225, the screw rod sleeve 3224 is sleeved outside the hollow screw rod 3225, one end of the screw rod sleeve 3224 is rotatably connected with the limiting cylinder 3223, and one end of the limiting cylinder 3223 is fixedly connected with one side wall of the rack 321; the hollow lead screw 3225 slides under the limitation of the middle polygonal limiting guide rod 3221, the integrity of a spiral groove in the outer wall of the hollow lead screw 3225 is guaranteed, and the hollow lead screw 3225 is driven to rotate by the lead screw sleeve 3224, so that the transmission is more stable and stable.

The mechanical variable-speed transmission mechanism 323 comprises an input large gear 3231, a driven shaft 3232, an output small gear 3233, a joint sleeve 3234, a push-pull shaft 3235, an input small gear 3236, a push-pull sleeve part 3237, an output large gear 3238 and a speed regulating motor 3239, wherein the input large gear 3231 and the input small gear 3236 are fixedly sleeved at two ends of a lead screw sleeve 3224 respectively, the upper sides of the input large gear 3231 and the input small gear 3236 are connected with the output small gear 3233 and the output large gear 3238 in a meshing manner respectively, the driven shaft 3232 is arranged between the output small gear 3233 and the output large gear 3238 in a penetrating manner, the driven shaft 3232 is connected with the output small gear 3233 and the output large gear 3238 in a rotating manner, the joint sleeve 3234 is arranged between the output small gear 3233 and the output large gear 3238, one side, close to the joint sleeve 3234, of the output small gear 3233 and the output large gear 3238 are respectively provided with a first friction ring piece 32331 and a second friction ring piece 32381, the joint sleeve 32341 is arranged on one side, and the joint sleeve 3234 is provided with a third friction ring 32341, The inner cylinder 32342 and the outer cylinder 32343, two ends of the inner cylinder 32342 are respectively provided with a third friction ring 32341, the inner cylinder 32342 is slidably sleeved on the driven shaft 3232, the outer cylinder 32343 is rotatably sleeved outside the inner cylinder 32342, one side of the outer cylinder 32343 is fixedly connected with one end of a push-pull sleeve part 3237, the other end of the push-pull sleeve part 3237 is of a spiral cylinder structure, a push-pull shaft 3235 penetrates through the middle of the spiral cylinder structure of the push-pull sleeve part 3237, the outer wall of the push-pull shaft 3235 is provided with a spiral groove, the spiral groove structure is matched with the spiral cylinder structure, one end of the push-pull shaft 3235 is coaxially connected with a speed regulating motor 3239, and the speed regulating motor 3239 is fixedly installed on the rack 321; the output small gear 3233 or the output large gear 3238 can be respectively meshed with the input large gear 3231 or the input small gear 3236 under the adjustment of the joint sleeve 3234, and the transmission mode enables the pushing speed of the pushing mechanism 322 to be adjusted by a mechanical speed, and when slow injection is needed, the pushing speed can be adjusted to be meshed with the output small gear 3233 and the input large gear 3231 for transmission.

The scram transmission mechanism 324 comprises a scram push rod 3241, a limiting rod 3242, a support plate 3243, a ring plate rotating drum 3244, a compression spring 3245, a telescopic rod 3246, a first friction plate 3247, a second friction plate 3248 and a transmission sliding drum 3249, one side of the first friction plate 3247 is fixedly connected with one end of the driven shaft 3232, the other side of the first friction plate 3247 is provided with the second friction plate 3248 in an aligning manner, one side of the second friction plate 3248 is fixedly connected with one end of the transmission sliding drum 3249, the transmission sliding drum 3249 is aligned with the shaft axis of the driven shaft 3232, the other end of the transmission sliding drum 3249 is connected with a power output mechanism 325 in a sliding manner, the outer wall of the transmission sliding drum 3249 is rotatably sleeved with the ring plate rotating drum 3244, one side of the ring plate rotating drum 3244 is connected with the support plate 3243 through the compression spring 3245, the telescopic rod 3246 penetrates through the middle of the compression spring 3245, two ends of the telescopic rod 3246 are respectively fixedly connected with the ring plate rotating drum 3244 and the support plate 3243, one end of the ring plate 3244 far away from the compression spring 3245 is hinged with one end of the scram push rod 3241, one end of the emergency stop push rod 3241 protrudes out of the outer wall of the rack 321, a strip-shaped hole is formed in the middle of the emergency stop push rod 3241, a limiting rod 3242 penetrates through the strip-shaped hole, and one end of the limiting rod 3242 is fixedly connected with the rack 321; the first friction plate 3247 and the second friction plate 3248 are in close contact under the elastic force of the compression spring 3245, and can realize connection transmission by using friction connection, so that the output shaft 3252 can transmit power to the driven shaft 3232, the first friction plate 3247 can be pushed by the scram push rod 3241 to be separated from the first friction plate 3247, when the driving motor 3254 abnormally operates due to system failure, an operator can manually pull the scram push rod 3241, power of the propelling mechanism 322 is quickly disconnected, excessive propelling injection is prevented, and safety is improved.

The power output mechanism 325 comprises a worm 3251, an output shaft 3252, a worm wheel 3253 and a driving motor 3254, one end of the output shaft 3252 is rotatably connected with the rack 321, one end of the output shaft 3252 is inserted into a cavity of the transmission sliding barrel 3249, the output shaft 3252 is in sliding fit with the transmission sliding barrel 3249, the worm wheel 3253 is fixedly sleeved outside the output shaft 3252, one side of the worm wheel 3253 is connected with the worm 3251 in a meshing manner, one end of the worm 3251 is coaxially connected with the driving motor 3254, and the driving motor 3254 is fixedly installed on the rack 321; by means of the transmission mode of the worm 3251 and the worm wheel 3253, the output shaft 3252 can be pushed to rotate, the self-locking effect can be achieved, shaking in the transmission process is prevented, and the transmission mode is stable.

The input module 1 is a key, the display module 2 is a nixie tube, the alarm module 5 is a micro-speaker, and the key, the nixie tube and the micro-speaker are respectively in signal connection with an I/O port of the singlechip 31; the keys can control the singlechip 31, the nixie tube can display the injection speed, and the micro-speaker can give an alarm for various faults and medicines.

The detection module 4 comprises an injection pressure sensor, a medicine exhaustion sensor, a voltage sensor and a motor fault sensor, the injection pressure sensor is arranged on the front side of the push plate 3222, and the medicine exhaustion sensor, the voltage sensor and the motor fault sensor are arranged on the rack 321; the medicine will be exhausted sensor is a distance measuring sensor with model of loose hg-c1030, whether medicine injection is exhausted or not is judged by sensing the stroke of the push plate 3222, the pressure sensor adopts a high-precision pressure sensor with model of PX-409, the pressure sensor monitors injection pressure in real time during action, the voltage sensor with model of CHV-25P is used for sensing the voltage of the driving motor 3254, and the motor fault sensor can be a temperature sensor AM2305 and is used for detecting whether the driving motor 3254 generates heat abnormally or not.

The storage module 6 comprises a main hard disk and a backup hard disk, wherein the main hard disk and the backup hard disk are respectively in signal connection with an I/O port of the single chip microcomputer 31, the main hard disk and the backup hard disk adopt EEPROM (electrically erasable programmable read-only memory), the main hard disk is used for storing data, and the backup hard disk is used for backing up data.

The working principle is as follows: the driving motor 3254 drives the output shaft 3252 to rotate through the worm 3251 and the worm wheel 3253, so that stable transmission can be achieved, a self-locking effect can be achieved, shaking in the transmission process is prevented, and the stability is improved;

an output shaft 3252 drives a transmission sliding barrel 3249 to rotate, the transmission sliding barrel 3249 drives a driven shaft 3232 to rotate through a first friction plate 3247 and a second friction plate 3248, the first friction plate 3247 and the second friction plate 3248 are in tight contact under the elastic force action of a compression spring 3245, connection transmission can be achieved through friction connection, further, the output shaft 3252 can transmit power to the driven shaft 3232, the first friction plate 3247 can be pushed by an emergency stop push rod 3241 to be separated from the first friction plate 3247, when the system fails and causes abnormal operation of a driving motor 3254, an operator can manually break the emergency stop push rod 3241, power of a propelling mechanism 322 is rapidly disconnected, excessive propelling injection is prevented, and safety is improved;

after the driven shaft 3232 is driven by the output shaft 3252 to rotate, the input large gear 3231 or the input small gear 3236 is driven to rotate by the output small gear 3233 or the output large gear 3238, the joint sleeve 3234 can be respectively in friction connection with the output small gear 3233 or the output large gear 3238 under the forward and backward pushing of the push-pull sleeve part 3237, so that the output small gear 3233 or the output large gear 3238 can be respectively in meshing transmission with the input large gear 3231 or the input small gear 3236, and the pushing speed of the pushing mechanism 322 can be adjusted by a mechanical speed;

then, the large input gear 3231 or the small input gear 3236 drives the screw rod sleeve 3224 to rotate, the screw rod sleeve 3224 can push the hollow screw rod 3225 to reciprocate when rotating, the hollow screw rod 3225 slides under the limitation of the middle polygonal limiting guide rod 3221, the integrity of a spiral groove in the outer wall of the hollow screw rod 3225 is guaranteed, the hollow screw rod 3225 is driven by the rotation of the screw rod sleeve 3224, the transmission is more stable and stable, and more stable injection is realized, so that the working principle of the locking function system of the CP1100 injection pump is realized.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A system for locking function of a CP1100 syringe pump, comprising: the locking control module (3), the output end signal connection of locking control module (3) has display module (2) and alarm module (5), and the input end signal connection of locking control module (3) has detection module (4) and input module (1), and locking control module (3) two-way signal connection has storage module (6).

2. A lock function system of a CP1100 syringe pump as claimed in claim 1, wherein: the locking control module (3) comprises a single chip microcomputer (31) and an execution device (32), the single chip microcomputer (31) is 51, the execution device (32) comprises a rack (321), a propelling mechanism (322), a mechanical variable-speed transmission mechanism (323), an emergency stop transmission mechanism (324) and a power output mechanism (325), the propelling mechanism (322), the mechanical variable-speed transmission mechanism (323), the emergency stop transmission mechanism (324) and the power output mechanism (325) are all installed on the rack (321), and the propelling mechanism (322) is connected with the power output mechanism (325) through the mechanical variable-speed transmission mechanism (323) and the emergency stop transmission mechanism (324).

3. A lock function system of a CP1100 syringe pump as claimed in claim 2, wherein: the propelling mechanism (322) comprises a polygonal limiting guide rod (3221), a push plate (3222), a limiting barrel (3223), a screw rod sleeve (3224) and a hollow screw rod (3225), two ends of the polygonal limiting guide rod (3221) are respectively and fixedly connected with two sides of the rack (321), the hollow screw rod (3225) is sleeved on the polygonal limiting guide rod (3221), the polygonal limiting guide rod (3221) is in sliding fit with the hollow screw rod (3225), the push plate (3222) is arranged at the top of one end of the hollow screw rod (3225), the screw rod sleeve (3224) is sleeved outside the hollow screw rod (3225), one end of the screw rod sleeve (3224) is rotatably connected with the limiting barrel (3223), and one end of the limiting barrel (3223) is fixedly connected with one side wall of the rack (321).

4. A lock function system of a CP1100 syringe pump as claimed in claim 3, wherein: the mechanical variable-speed transmission mechanism (323) comprises an input large gear (3231), a driven shaft (3232), an output small gear (3233), a joint sleeve (3234), a push-pull shaft (3235), an input small gear (3236), a push-pull sleeve part (3237), an output large gear (3238) and a speed regulating motor (3239), wherein the input large gear (3231) and the input small gear (3236) are respectively and fixedly sleeved at two ends of a screw rod sleeve (3224), the upper sides of the input large gear (3231) and the input small gear (3236) are respectively connected with the output small gear (3233) and the output large gear (3238) in a meshing manner, the driven shaft (3232) penetrates through the middle of the output small gear (3233) and the output large gear (3238), the joint sleeve (3234) is arranged between the output small gear (3233) and the output large gear (3238), a first friction ring piece (32331) and a second friction ring piece (32381) are respectively arranged on one side of the output pinion (3233) and one side of the output gearwheel (3238) close to the joint sleeve (3234), the joint sleeve (3234) comprises a third friction ring piece (32341), an inner cylinder (32342) and an outer cylinder (32343), the two ends of the inner cylinder (32342) are respectively provided with the third friction ring piece (32341), the inner cylinder (32342) is slidably sleeved on the driven shaft (3232), the outer cylinder (32343) is rotatably sleeved outside the inner cylinder (32342), one side of the outer cylinder (32343) is fixedly connected with one end of a push-pull sleeve piece (3237), the other end of the push-pull sleeve piece (3237) is of a spiral cylinder structure, a push-pull shaft (3235) penetrates through the middle of the push-pull sleeve piece (3237), a spiral groove is formed in the outer wall of the push-pull shaft (3235), the spiral groove structure is matched with the spiral cylinder structure, one end of the push-pull shaft (3235) is connected with a coaxial speed-regulating motor (3239), the speed regulating motor (3239) is fixedly arranged on the frame (321).

5. The system of claim 4, wherein the locking function of the CP1100 syringe pump comprises: the emergency stop transmission mechanism (324) comprises an emergency stop push rod (3241), a limiting rod (3242), a supporting plate (3243), a ring plate rotating cylinder (3244), a compression spring (3245), a telescopic rod (3246), a first friction plate (3247), a second friction plate (3248) and a transmission sliding cylinder (3249), one side of the first friction plate (3247) is fixedly connected with one end of a driven shaft (3232), the other side of the first friction plate (3247) is provided with the second friction plate (3248) in an aligned mode, one side of the second friction plate (3248) is fixedly connected with one end of the transmission sliding cylinder (3249), the transmission sliding cylinder (3249) is aligned with the axis of the driven shaft (3232), the other end of the transmission sliding cylinder (3249) is connected with a power output mechanism (325) in a sliding mode, the ring plate rotating cylinder (3244) is sleeved on the outer wall of the transmission sliding cylinder (3249) in a rotating mode, one side of the ring plate rotating cylinder (3244) is connected with the supporting plate (3243) through the compression spring (3245), and the middle of compression spring (3245) is worn to be equipped with telescopic link (3246), the both ends of telescopic link (3246) respectively with ring plate rotary drum (3244) and backup pad (3243) fixed connection, one side that compression spring (3245) was kept away from in ring plate rotary drum (3244) articulates there is the one end of scram push rod (3241), the outer wall of the outstanding frame (321) of one end of scram push rod (3241), and the middle part of scram push rod (3241) has seted up the bar hole, and this bar is downthehole to be worn to be equipped with gag lever post (3242), the one end and frame (321) fixed connection of gag lever post (3242).

6. The system of claim 5, wherein the locking function of the CP1100 syringe pump comprises: the power output mechanism (325) comprises a worm (3251), an output shaft (3252), a worm wheel (3253) and a driving motor (3254), one end of the output shaft (3252) is rotatably connected with the rack (321), one end of the output shaft (3252) is inserted into a cavity of the transmission sliding barrel (3249), the output shaft (3252) is in sliding fit with the transmission sliding barrel (3249), the worm wheel (3253) is fixedly sleeved outside the output shaft (3252), one side of the worm wheel (3253) is connected with the worm (3251) in a meshing manner, one end of the worm (3251) is coaxially connected with the driving motor (3254), and the driving motor (3254) is fixedly installed on the rack (321).

7. A lock function system of a CP1100 syringe pump as claimed in claim 2, wherein: the input module (1) is a key, the display module (2) is a nixie tube, the alarm module (5) is a micro loudspeaker, and the key, the nixie tube and the micro loudspeaker are respectively in signal connection with an I/O port of the single chip microcomputer (31).

8. A lock function system of a CP1100 syringe pump as claimed in claim 3, wherein: the detection module (4) comprises an injection pressure sensor, a medicine exhaustion sensor, a voltage sensor and a motor fault sensor, the injection pressure sensor is arranged on the front side of the push plate (3222), and the medicine exhaustion sensor, the voltage sensor and the motor fault sensor are arranged on the rack (321).

9. A lock function system of a CP1100 syringe pump as claimed in claim 2, wherein: the storage module (6) comprises a main hard disk and a backup hard disk, and the main hard disk and the backup hard disk are respectively in signal connection with an I/O port of the single chip microcomputer (31).