CN219516201U - Endoscope preprocessing device - Google Patents

Abstract

The utility model discloses an endoscope pretreatment device, which relates to the technical field of medical appliances, and comprises a barrel body, a control mechanism and a negative pressure interface, wherein the top of the barrel body is provided with an opening and closing door, the control mechanism is arranged at the top of the barrel body and used for controlling the opening and closing of the opening and closing door, and the negative pressure interface is arranged at the upper part of the barrel body and used for being connected with a negative pressure supply device; the opening and closing door comprises at least one door body which is arranged at the top of the barrel body in a sliding manner, and a first chute which is arranged at the top of the barrel body and is matched with the door body; the control mechanism comprises at least one group of driving components for controlling the sliding of the door body and a key for controlling the starting and stopping of the driving components. The utility model has simple structure, reduces the direct contact between medical staff and pollution sources, solves the problem of easy aerosol diffusion during endoscope pretreatment, reduces the labor intensity of medical staff, and has more thorough endoscope cleaning treatment and greatly reduces the occurrence of hospital feel.

Description

Endoscope preprocessing device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an endoscope pretreatment device.

Background

The electronic gastroenteroscope examination needs medical staff and close-distance operation of a patient, the examination is completed by inserting a gastroscope or enteroscope into the oral cavity or anus of the patient, and clinically, after the endoscope diagnosis is finished, the polluted endoscope is transported to a cleaning and disinfecting chamber for a certain time, so that the polluted endoscope outer surface and the residual pollutants such as blood, secretion and the like of a pipeline are easy to dry and solidify, and bacteria are easy to form a biological film in an endoscope channel, so that the medical staff needs to pre-treat the polluted endoscope beside a bed in time so as to remove blood, mucus, organic matters and the like on the inner and outer pipeline walls of the endoscope.

The existing bedside pretreatment basic steps comprise: immediately after the endoscope is taken out of the patient, before being detached from the light source and the video processor, the external surface dirt is wiped off by a wet towel or a wet gauze containing cleaning liquid; repeatedly supplying air and water for at least 10 seconds; placing the tip of the endoscope into a container filled with cleaning solution, starting the suction function, and repeatedly sucking the cleaning solution until the clear liquid is sucked out. In the process, attachments such as spray, excrement and the like from the alimentary canal of a patient are easy to form aerosol to spread in a diagnosis and treatment environment, and the aerosol is a threat to health of medical staff and patients.

In view of the above, the technical problems to be solved by the present utility model are as follows:

a device is provided which can avoid the spreading of aerosols during pretreatment, avoid the threat to the health of medical staff and patients, and avoid the occurrence of hospital feels.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an endoscope pretreatment device, which solves the problems in the background art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

an endoscope pretreatment device comprises a barrel body, a control mechanism and a negative pressure interface, wherein the top of the barrel body is provided with an opening and closing door, the control mechanism is arranged at the top of the barrel body and used for controlling the opening and closing of the opening and closing door, and the negative pressure interface is arranged at the upper part of the barrel body and used for being connected with a negative pressure supply device; the opening and closing door comprises at least one door body which is arranged at the top of the barrel body in a sliding manner, and a first chute which is arranged at the top of the barrel body and is matched with the door body; the control mechanism comprises at least one group of driving components for controlling the sliding of the door body and a key for controlling the starting and stopping of the driving components.

Preferably, the endoscope also comprises a flushing mechanism which is arranged in the barrel body and is used for removing attachments on the outer wall of the endoscope; the flushing mechanism comprises a water pump arranged in the barrel body, a drainage tube extending to the bottom of the barrel body and connected with the input end of the water pump, and at least one jet flow pipe connected with the output end of the water pump and arranged on the inner wall of the barrel body; and at least two spray ports are arranged on the spray pipe.

Preferably, the flushing mechanism further comprises a porous nozzle arranged on the spray port;

and/or;

and a filtering piece is arranged on the drainage tube.

Preferably, the device further comprises a cleaning mechanism arranged in the barrel body; the cleaning mechanism comprises a guide groove which is connected with the inner wall of the barrel body and is in an inverted funnel shape, and a cleaning tube which is arranged at the bottom of the guide groove and provided with bristles on the inner wall.

Preferably, the purifying pipe is rotatably connected with the bottom of the guide groove through a connecting piece.

Preferably, the cleaning mechanism further comprises a first gear bar arranged on the outer wall of the cleaning tube, a first gear meshed with the first gear bar, and a rotating motor, wherein the output shaft of the rotating motor is connected with the first gear and drives the first gear to rotate.

Preferably, the connecting piece is a bearing sleeved on the guide groove and the outer edge of the connecting piece is connected with the purifying pipe, or the connecting piece is a sliding block and a second sliding groove which are correspondingly arranged at the joint of the guide groove and the purifying pipe and are matched with each other.

Preferably, a door frame is arranged at the top of the barrel body; the door body is arranged below the door frame; the number of the door bodies is 2, and the 2 door bodies are oppositely arranged in parallel to form a side-by-side door structure; the opposite sides of the door body are provided with buffer parts; the outer edge of one side of the door body extending into the first chute is provided with a second gear strip; the first chute is C-shaped, and a strip-shaped through hole which is used for being connected with and communicated with the driving assembly is formed in the side wall of the first chute.

Preferably, the driving assembly comprises a driving motor and a gear set connected with an output shaft of the driving motor; the output end of the gear set is connected with the second gear strip.

Preferably, the bottom of the barrel body is provided with a universal wheel;

and/or the pretreatment device further comprises a PLC controller for controlling the operation of the whole device;

and/or the electric key is an inductive switch or a foot switch; the foot switch comprises a pedal groove which is arranged at the bottom of the barrel body and is recessed towards the center of the barrel body, a bracket which is arranged on the pedal groove, a pedal plate which is arranged on the bracket in a rotating mode, a spring which is arranged at the end part of the pedal plate, which is close to the bottom of one side of the outer side of the barrel body, a probe rod which is arranged on the top plane of the end part of the other side of the pedal plate, and a correlation sensor which is arranged at the top of the pedal groove and on the travel of the probe rod; the correlation sensor is electrically connected with the driving component; the inductive switch is a pressure sensor or an infrared inductive switch.

Compared with the prior art, the utility model has the following beneficial effects:

1. the endoscope pretreatment device is provided with the opening and closing door, when the opening and closing door is opened, the endoscope can be placed in the barrel body, and then the opening and closing door is closed, so that the endoscope is pretreated in a closed environment, and cleaning liquid is placed in the barrel body in advance, so that the cleaning treatment operation of the endoscope is realized; meanwhile, the device is connected with the negative pressure supply device, so that aerosol generated in the pretreatment process of the endoscope is timely carried away, pollution to diagnosis and treatment environment is avoided, and the probability of cross infection is reduced.

2. The inside washing mechanism that can self-loopa that is equipped with of staving of this scope preprocessing device, washing liquid are at the device internal recycle, reduce the wasting of resources, still are equipped with the filthy thing that the filter element is used for filtering in the washing liquid on the drainage tube of water pump simultaneously, keep the clean circulation of washing liquid.

3. The washing mechanism of the endoscope pretreatment device pumps the cleaning liquid at the bottom to the upper part of the device through a water pump, and the jet flow pipe evenly washes the cleaning liquid on the outer wall of the endoscope; the funnel-shaped guide groove can drain cleaning liquid to the purifying pipe below, can also guide the endoscope to directly enter the purifying pipe of the cleaning mechanism, is internally provided with bristles, and can clean the endoscope by rotating the purifying pipe without cleaning the outer wall of the endoscope by hands of medical staff, so that the operation difficulty and the working strength of the medical staff are reduced, the infection risk brought to the medical staff by the scattering of aerosol or the splash of secretion is avoided, and the probability of hospital infection is reduced.

4. The electric key of the device for controlling the opening and closing door is an inductive switch or a pedal switch, so that the contact between medical staff and secretion of a patient is greatly reduced, and the operation process is cleaner and more sanitary.

The utility model has the advantages of simple structure and convenient operation, reduces the direct contact between medical staff and a pollution source, solves the problem of easy aerosol diffusion during endoscope pretreatment, reduces the labor intensity of medical staff, and has more thorough endoscope cleaning treatment and greatly reduces the occurrence of hospital feel.

Drawings

The advantages and the manner of carrying out the utility model will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings, in which the content shown is meant to illustrate, but not to limit, the utility model in any sense, and wherein:

FIG. 1 is a schematic view of an endoscope pretreatment device according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of FIG. 1A;

fig. 3 is a schematic view of another endoscope pretreatment device in an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

As shown in fig. 1 and 3, an endoscope pretreatment device includes a tub body 100 with an opening and closing door 110 at the top, a control mechanism provided at the top of the tub body 100 for controlling the opening and closing of the opening and closing door 110, and a negative pressure interface 300 provided at the upper part of the tub body 100 for connecting with a negative pressure supply device, so that the tub body 100 forms a negative pressure, and aerosols generated in the tub body 100 are prevented from overflowing the tub body 100, thereby affecting the diagnosis and treatment environment and even affecting the health of indoor personnel; the opening and closing door 110 comprises at least one door body 111 slidably disposed at the top of the tub body 100, and a first chute 112 disposed at the top of the tub body 100 and adapted to the door body 111; when the endoscope is soaked in the cleaning liquid, the opening and closing door 110 can form a closed space inside the device, so that generated aerosol is effectively prevented from being diffused. The control mechanism includes at least one set of driving components 210 for controlling the sliding of the door body 111, and a key 220 for controlling the start and stop of the driving components 210. The electric key 220 may be disposed on an outer sidewall of the tub 100, or may be a control switch electrically connected to the tub 100 through a wire, or may be controlled in a wireless manner, such as a remote control switch, which is not particularly limited herein. The opening and closing of the opening and closing door 110 are controlled by the electric key 220, so that the operation of medical staff is facilitated, the frequency of the medical staff directly touching the opening area of the pretreatment device is greatly reduced, the infection source diffusion caused by the operation is avoided, and the possibility of direct contact between the medical staff and aerosol is reduced.

In this embodiment, the number of the gate bodies 111 is 1. The number of the first sliding grooves 112 is 2, the 2 first sliding grooves 112 are arranged on the edges of two sides of the door body 111, a second gear strip 113 is arranged on the outer wall of one side of the door body 111, which is close to the first sliding grooves 112, a strip-shaped through hole 114 is arranged on the first sliding groove 112, a driving motor 211 is arranged on the inner wall of the top of the barrel body 100, a gear set 212 is arranged on the output shaft of the driving motor 211, and the gear set 212 is meshed with the second gear strip 113. The door 111 and the tub 100 are provided with a buffer member 115 at the outer edge of the opening and closing side thereof to protect the endoscope.

Further, the pretreatment device further comprises a flushing mechanism 400 which is arranged in the barrel body 100 and is used for removing attachments on the outer wall of the endoscope; the flushing mechanism 400 comprises a water pump 410 arranged in the barrel body 100, a drainage tube 420 extending to the bottom of the barrel body 100 and connected with the input end of the water pump 410, and at least one jet pipe 430 connected with the output end of the water pump 410 and arranged on the inner wall of the barrel body 100; at least two spouting holes 431 are provided in the spouting tube 430. The jet pipe 430 winds around the tub 100 for at least one circle, and the jet hole 431 is penetrating through the outer wall of the jet pipe 430 facing the center of the tub 100. The cleaning solution at the bottom of the tub 100 is pumped to the upper part of the tub 100 by the cleaning mechanism 400, so that the outer wall of the endoscope at the middle part of the tub 100 is cleaned, and the attachments on the outer wall of the endoscope are cleaned to the bottom of the tub 100.

Further, the flushing mechanism 400 further includes a porous nozzle disposed on the spray port 431. The cleaning liquid which is flushed to the endoscope is more uniform through the porous nozzle, and meanwhile, the flow speed of the cleaning liquid sprayed out can be further increased due to the small aperture of the porous nozzle, so that the cleaning liquid is more convenient to flush the outer wall of the endoscope, and the cleaning liquid is cleaner.

The endoscope pretreatment device with the structure enables the barrel body 100 to form a relatively airtight space through the opening and closing of the opening and closing door 110, and simultaneously separates the air-soluble adhesive tape in the barrel body 100 through negative pressure, thereby effectively avoiding the diffusion of pollution sources, keeping the environment of a hospital in a clean state and avoiding the occurrence probability of hospital feel.

Example 2

The present embodiment also provides an endoscope preprocessing device, the structure of which is basically the same as that of embodiment 1, the difference being that:

as shown in fig. 1 and 3, the drainage tube 420 is provided with a filter 421. The filter member 421 may be a filter element, a filter sponge, or a filter, and is not particularly limited herein. Solid impurities or secretion in the cleaning liquid are removed through the filtering piece 421, so that the cleaning liquid which is flushed towards the outer wall of the endoscope is kept in a basically pure state, and further, the attachment on the outer wall of the endoscope is more favorably and rapidly removed. And because when the endoscope is pretreated, the inner wall of the endoscope needs to be treated by repeatedly sucking the cleaning liquid, the cleaning liquid at the bottom is further kept in a clean state by filtering the cleaning liquid through the filtering piece 421, and further the cleaning treatment of the inner wall of the endoscope is cleaner than the traditional treatment mode (the traditional treatment mode is that a non-cover barrel with the cleaning liquid inside is arranged at the side of a bed, after the medical staff performs inspection, the front end of the endoscope is placed in the non-cover barrel, the endoscope is wetted by the cleaning liquid, the cleaning liquid is repeatedly sucked to wash the inner wall of the endoscope until the clean liquid is sucked out, then the endoscope is lifted upwards, the cleaning liquid is separated from the cleaning liquid level, the outer wall of the endoscope is wiped by a wet towel containing the cleaning liquid from top to bottom, and the endoscope is placed in a transfer trolley.

Further, the washing device further comprises a washing mechanism 500 arranged in the barrel body 100; the cleaning mechanism 500 includes a guide groove 510 connected to the inner wall of the tub 100 and having an inverted funnel shape, and a cleaning tube 520 disposed at the bottom of the guide groove 510 and having bristles disposed on the inner wall. After the endoscope enters the barrel body 100 through the guide groove 510, the endoscope automatically moves to the center of the guide groove 510 under the action of gravity and then enters the purifying tube 520, so that the endoscope can be cleaned further. The brush hair on the purifying tube 520 is used for cleaning attachments which are attached to the outer wall of the endoscope and are difficult to clean, so that the outer wall of the endoscope is cleaned more thoroughly, meanwhile, the cleaning liquid is continuously downwards sprayed by the spraying tube 430, the cleaning of the outer wall of the endoscope is further assisted by the purifying tube 520, the aim of quickly cleaning the outer wall of the endoscope can be fulfilled, the treatment time of medical staff is saved, and the labor intensity of the medical staff is further reduced.

Further, the purifying tube 520 is rotatably connected to the bottom of the guide groove 510 by a connection member 530, so that the brush can further clean the outer wall of the endoscope.

Further, the cleaning mechanism 500 further includes a first gear 550 bar 540 disposed on the outer wall of the cleaning tube 520, a first gear 550 meshed with the first gear 550 bar 540, and a rotating motor 560 having an output shaft connected to the first gear 550 and driving the first gear 550 to rotate. The purifying pipe 520 is rotatably provided at the bottom of the guide groove 510. The first gear 550 is driven to rotate by the rotating motor 560, so that the purifying tube 520 is rotated, the outer wall of the endoscope is kept rotating by the hairbrush, and the endoscope is thoroughly cleaned.

Further, the connecting member 530 is a bearing sleeved on the guiding groove 510 and having an outer edge connected to the purifying pipe 520, an inner ring of the bearing is fixed to the guiding groove 510, and an outer ring of the bearing is fixed to the purifying pipe 520. As another preferred embodiment of the present utility model, the connecting piece 530 is a slider and a second chute correspondingly disposed at the connection position of the guide groove and the purifying tube 520 and adapted to realize the rotational connection between the purifying tube 520 and the guide groove 510.

Further, the pretreatment device also comprises a PLC controller for controlling the operation of the whole device so as to control the device.

Further, the top of the door body 111 of the pretreatment device is provided with an extension barrel 700 which extends upwards and has an inner diameter gradually increased from bottom to top, so that the height of the barrel body 100 is extended, medical staff can conveniently and rapidly stretch an endoscope into the device, bending operation of the medical staff is avoided, and convenience is improved.

In summary, compared with embodiment 1, the technical effect of embodiment 1 can be achieved, and the cleaning mechanism 500 is provided, so that the cleaning operation on the outer wall of the endoscope is more thorough, the operation that medical staff need to wipe attachments on the outer wall of the endoscope by hands in the existing operation is avoided, the existing operation is complex in operation and aerosol is easier to generate, and after the endoscope is pretreated by adopting the pretreatment device provided by the utility model, the operation is convenient, time and labor are saved, the cleaning effect is better, the diffusion of the aerosol is effectively avoided, and the occurrence of hospital infection is avoided.

Example 3

The present embodiment also provides an endoscope preprocessing device, the structure of which is basically the same as that of embodiment 2, the difference being that:

as shown in fig. 2, a door frame 116 is provided at the top of the tub 100; the door body 111 is arranged below the door frame 116; the number of the door bodies 111 is 2, and the 2 door bodies 111 are relatively arranged in parallel to form a side-by-side door structure; the opposite sides of the door body 111 are provided with a buffer 115; the outer edge of the door body 111 extending into one side of the first sliding groove 112 is provided with a second gear strip 113; the first chute 112 is C-shaped, and a bar-shaped through hole 114 for connecting and penetrating the driving assembly 210 is provided on a side wall of the first chute 112. The buffer 115 is preferably a silicone rubber or an elongated rubber gasket to prevent the door 111 from pinching the endoscope during closing, thereby damaging the endoscope.

Further, the driving assembly 210 includes a driving motor 211, and a gear set 212 connected to an output shaft of the driving motor 211; the output of the gear set 212 is connected to the second gear strip 113.

Further, the bottom of the barrel body 100 is provided with universal wheels, so that the device can be moved conveniently, and time and labor are saved;

further, the electric key 220 is an inductive switch or a foot switch 600; the foot switch 600 includes a pedal groove 610 disposed at the bottom of the tub 100 and recessed toward the center of the tub 100, a bracket 620 disposed on the pedal groove 610, a foot pedal 630 rotatably disposed on the bracket 620, a spring 640 disposed at the bottom end of the foot pedal 630 near the outer side of the tub 100, a probe 650 disposed on the top plane of the end of the foot pedal 630, and a correlation sensor 660 disposed at the top of the pedal groove 610 and on the travel of the probe 650; the correlation sensor 660 is electrically connected with the driving component 210; the inductive switch is a pressure sensor or an infrared inductive switch, and when the inductive switch is an infrared inductive switch, it is preferably a correlation type infrared sensor arranged on the door frame 116.

In actual operation, when a medical staff needs to perform pretreatment, the foot pedal 630 is stepped on by feet, the end part of the other side of the foot pedal 630 is lifted upwards, then the probe rod 650 is led into the correlation sensor 660, the PLC controller starts the driving motor 211 after receiving the electric signal of the correlation sensor 660, then the opening and closing door 110 is opened, the medical staff places the endoscope into the door frame 116, the medical staff lifts the feet, then the foot switch 600 returns under the driving of the spring 640, then the probe rod 650 returns to the original position, leaves from the induction area of the correlation sensor 660, the PLC controller closes the opening and closing door 110 after receiving the electric signal, and simultaneously starts the rotating motor 560 and the water pump 410 to perform cleaning operation. In the cleaning process, medical staff can make longer endoscope obtain more complete cleanness through the operation of pulling up and pushing down the endoscope, and after cleaning is accomplished, medical staff makes the door 110 open that opens and shuts through pedal 630 is stepped on to the foot, and medical staff lifts the endoscope and accomplishes cleanness.

The utility model is mainly to protect the structural design of the whole pretreatment device, and does not relate to the improvement of the program, the PLC controller can easily realize the control programs of the electric key 220, the driving motor 211, the inductive switch, the correlation sensor 660, the rotating motor 560 and the water pump 410, and the PLC control program can be designed by utilizing the basic knowledge of the PLC under the condition that the design requirement of the movement stroke is known by a person skilled in the art.

While the preferred embodiments of the present utility model have been illustrated by reference to the accompanying drawings, those skilled in the art will appreciate that many modifications are possible in carrying out the utility model without departing from the scope and spirit thereof. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield still a further embodiment. The foregoing description and drawings are merely illustrative of preferred embodiments of the present utility model and are not intended to limit the scope of the claims, but rather to cover all modifications within the scope of the present utility model.

Claims (10)

1. An endoscope pretreatment device is characterized by comprising a barrel body, a control mechanism and a negative pressure interface, wherein the top of the barrel body is provided with an opening and closing door, the control mechanism is arranged at the top of the barrel body and used for controlling the opening and closing of the opening and closing door, and the negative pressure interface is arranged at the upper part of the barrel body and used for being connected with a negative pressure supply device; the opening and closing door comprises at least one door body which is arranged at the top of the barrel body in a sliding manner, and a first chute which is arranged at the top of the barrel body and is matched with the door body; the control mechanism comprises at least one group of driving components for controlling the sliding of the door body and a key for controlling the starting and stopping of the driving components.

2. An endoscope preprocessing apparatus according to claim 1, wherein: the washing mechanism is arranged in the barrel body and used for removing attachments on the outer wall of the endoscope; the flushing mechanism comprises a water pump arranged in the barrel body, a drainage tube extending to the bottom of the barrel body and connected with the input end of the water pump, and at least one jet flow pipe connected with the output end of the water pump and arranged on the inner wall of the barrel body; and at least two spray ports are arranged on the spray pipe.

3. An endoscope pretreatment device according to claim 2, wherein said flushing mechanism further comprises a porous nozzle provided on said nozzle;

and/or;

and a filtering piece is arranged on the drainage tube.

4. An endoscope pretreatment device according to claim 1, further comprising a cleaning mechanism provided in said barrel; the cleaning mechanism comprises a guide groove which is connected with the inner wall of the barrel body and is in an inverted funnel shape, and a cleaning tube which is arranged at the bottom of the guide groove and provided with bristles on the inner wall.

5. An endoscope preprocessing apparatus according to claim 4, wherein: the purifying pipe is rotationally connected with the bottom of the guide groove through a connecting piece.

6. An endoscope preprocessing apparatus according to claim 5, wherein: the cleaning mechanism further comprises a first gear strip arranged on the outer wall of the cleaning tube, a first gear meshed with the first gear strip, and a rotating motor, wherein the output shaft of the rotating motor is connected with the first gear and drives the first gear to rotate.

7. An endoscope preprocessing apparatus according to claim 6, wherein: the connecting piece is a bearing sleeved on the guide groove and the outer edge of the bearing is connected with the purifying pipe, or the connecting piece is a sliding block and a second sliding groove which are correspondingly arranged at the joint of the guide groove and the purifying pipe and are matched with each other.

8. An endoscope pretreatment device according to any of claims 1 to 7, wherein a door frame is provided at the top of said barrel; the door body is arranged below the door frame; the number of the door bodies is 2, and the 2 door bodies are oppositely arranged in parallel to form a side-by-side door structure; the opposite sides of the door body are provided with buffer parts; the outer edge of one side of the door body extending into the first chute is provided with a second gear strip; the first chute is C-shaped, and a strip-shaped through hole which is used for being connected with and communicated with the driving assembly is formed in the side wall of the first chute.

9. An endoscope preprocessing apparatus according to claim 8, wherein said driving assembly comprises a driving motor and a gear set connected to an output shaft of the driving motor; the output end of the gear set is connected with the second gear strip.

10. An endoscope preprocessing apparatus according to claim 9, wherein: the bottom of the barrel body is provided with a universal wheel;

and/or the pretreatment device further comprises a PLC controller for controlling the operation of the whole device;

and/or the electric key is an inductive switch or a foot switch; the foot switch comprises a pedal groove which is arranged at the bottom of the barrel body and is recessed towards the center of the barrel body, a bracket which is arranged on the pedal groove, a pedal plate which is arranged on the bracket in a rotating mode, a spring which is arranged at the end part of the pedal plate, which is close to the bottom of one side of the outer side of the barrel body, a probe rod which is arranged on the top plane of the end part of the other side of the pedal plate, and a correlation sensor which is arranged at the top of the pedal groove and on the travel of the probe rod; the correlation sensor is electrically connected with the driving component; the inductive switch is a pressure sensor or an infrared inductive switch.