CN214874419U - On-vehicle extensible removes biological safety laboratory - Google Patents

Abstract

The utility model relates to a biological safety protection technique specifically is a biological safety laboratory is removed to on-vehicle extensible formula, including the load wagon, the top of load wagon is connected with fixed carriage, the right side in fixed carriage is provided with the extension carriage, the inside in fixed carriage is including laboratory work area, laboratory work area includes reagent storage preparation district, one side in reagent storage preparation district is provided with the specimen preparation district, the opposite side in specimen preparation district is provided with the augmentation district, maintenance business turn over door has all been seted up to the left side in reagent storage preparation district and back wall, laboratory work area's rear is provided with the equipment room of airing exhaust. The utility model discloses overall arrangement is novel in the laboratory, and the subregion is reasonable, both makes the equipment module relatively independent of each different functions and make full use of the space in carriage again, and it is big to expand the working area, has improved the suitability in laboratory and operating personnel's improvement of operation efficiency.

Description

On-vehicle extensible removes biological safety laboratory

Technical Field

The utility model relates to a biological safety protection technique and equipment technical field specifically are a biological safety laboratory is removed to on-vehicle extensible.

Background

Biological safety laboratory, also be exactly biological laboratory, be the place of carrying out the experiment relevant with biological branch of academic or vocational study, along with requirement to quality control is more and more strict, the demand of constant temperature and humidity environment is bigger and bigger, and the field of application is also more and more extensive, and along with the gradual development of times, in order to realize emergency operation, develops the vehicular removal biological laboratory gradually, conveniently is used for open-air detection and uses etc. has improved the timeliness of using.

However, current on-vehicle portable biological safety laboratory of removal adopts non-extension formula carriage structure usually, mainly form by the container assembly, the inside space in its carriage is fixed, thereby it is narrow and small to make the core workshop space in the carriage, the subregion is limited, lead to the inside medical personnel's in carriage operation inconvenient, thereby indirectly lead to the operation efficiency of laboratory to reduce, lead to it to be difficult to satisfy the needs that work such as the pathogenic microorganism detection is carried out fast in the epidemic area scene, influence the detection progress of epidemic area pathogenic microorganism, thereby unable quick carry out the detection and analysis to the epidemic area pathogenic microorganism, lead to the delay of testing result, thereby influence the whole treatment efficiency in epidemic area, consequently need to design an on-vehicle extensible formula and remove biological safety laboratory and solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a biological safety laboratory is removed to on-vehicle extensible to it is little to provide current portable biological safety laboratory operating space, the limited, the low problem of operation efficiency of subregion to solve among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a biological safety laboratory is removed to on-vehicle extensible formula, includes the loading wagon, the top of loading wagon is connected with fixed carriage, the right side in fixed carriage is provided with the extension carriage, the inside in fixed carriage is including laboratory work area, laboratory work area includes reagent storage preparation district, one side in reagent storage preparation district is provided with the specimen preparation district, the opposite side in specimen preparation district is provided with the expansion district, maintenance business turn over door has all been seted up with the back wall in the left side in reagent storage preparation district, laboratory work area's rear is provided with the exhaust equipment room, laboratory work area's front is provided with the air conditioning equipment room, the right side between air conditioning equipment is provided with between the distribution control.

Preferably, a clean water tank and a sewage tank are arranged below the body of the loading vehicle, the clean water tank is connected to the upper portion of the water inlet structure of the hand washing device, and the sewage tank is connected to the upper portion of the water outlet of the hand washing device.

Preferably, the extension carriage includes the surveillance area, the rear of surveillance area is provided with the district of changing clothes, the inside in district of changing clothes is provided with the wardrobe, the inside in surveillance area is provided with main control cabinet and control display, the single door that opens has been seted up on the right side in surveillance area and the district of changing clothes.

Preferably, the monitoring area is in extension part the place ahead, is provided with main control cabinet and monitor display in extension carriage and fixed carriage partition wall department, install integrated monitor meter and controlgear in the main control cabinet, the display interface is shown to the monitor display setting laboratory running state (temperature, humidity, pressure differential etc.).

Preferably, reagent storage preparation district sets firmly the afterbody at laboratory work area, the inside regional design in reagent storage preparation district is malleation +10Pa, the inside in reagent storage preparation district is provided with superclean bench, ultra-low temperature refrigerator, round bench, first workstation and the first on-vehicle hand of car and disappears the device.

Preferably, the specimen preparation area is fixedly arranged in the middle of a laboratory working area, a first test room and a first buffer room are arranged in the laboratory working area, a mechanical compression type sealing door is arranged between the first buffer room and the first test room for isolation, the internal area of the first buffer room is designed to be negative pressure of-10 Pa, a passage door is arranged between the first buffer room and an expansion carriage, the internal area of the first test room is designed to be negative pressure of-20 Pa, a biological safety cabinet, a freezer, a second workbench, a first steam sterilizer, a third workbench, a first transmission window and other special experimental equipment are arranged in the specimen preparation area, and a group of first transmission windows are arranged between the first test room and the expansion carriage.

Preferably, the amplification area is fixedly arranged at the front part of a laboratory working area, the inside of the amplification area is arranged between a second buffer room and a second test room, a mechanical compression type airtight door is arranged between the second buffer room and the second test room for isolation, the inside of the second buffer room is designed to be negative pressure-10 Pa, a passage door is arranged between the second buffer room and an expansion carriage, the inside of the second test room is designed to be negative pressure-20 Pa, exclusive experimental equipment such as a fourth workbench, a PCR instrument, a second steam sterilizer and a second vehicle-mounted hand sterilizing device is arranged inside the second test room, and a group of second transfer windows is arranged between the second test room and the first test room.

Preferably, the air conditioning equipment room is fixedly arranged on the left side of the front end of the fixed carriage, an air conditioner external unit and an air supply purifying device are arranged inside the air conditioning equipment room, an air conditioner maintenance door is arranged at the position, corresponding to the side plate of the fixed carriage, of the air conditioner external unit and the air supply purifying device, and a ventilation door is arranged at the bottom of the air conditioner maintenance door.

Preferably, the exhaust equipment room is fixedly arranged on the left side of the rear end of the fixed carriage, exhaust purification equipment is arranged in the exhaust equipment room, exhaust system maintenance doors are arranged at positions, corresponding to the side plates of the fixed carriage, of the exhaust purification equipment, and two groups of the exhaust system maintenance doors are arranged.

Preferably, the distribution control room sets firmly on fixed carriage front end right side, distribution control room's inside sets up and supplies to join in marriage the switch board, the curb plate position department that supplies to join in marriage the switch board and correspond fixed carriage is provided with ventilation tripe hole, the upper portion in ventilation tripe hole is provided with the distribution maintenance door.

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

the vehicle-mounted extensible mobile biological safety laboratory meets the emergency disposal requirements of dealing with the emergent public health events, can be flexibly and quickly deployed, is novel in layout in the laboratory, realizes the expansion of the area of the carriage in a single-side mechanical expansion mode, improves the working area, ensures reasonable partitioning, ensures that equipment modules with different functions are relatively independent, fully utilizes the space of the carriage, has large expansion working area, improves the applicability of the laboratory, has the characteristics of light specific weight, large expansion ratio, high expansion and contraction speed, strong environmental adaptability, good reliability and maintainability and the like, adopts modular integrated transportation for portable equipment, improves the transportability and the expansion and contraction speed, ensures that the laboratory can be directly distributed to an epidemic situation place for use, reduces the flow of patients, thereby reducing the path and time of virus propagation, and well controls the epidemic situation, the sample detection device does not need to be delivered to a designated laboratory for detection, the sample circulation time is greatly shortened, the sample can be detected as early as possible, the detection accuracy can also be improved, and the sample detection device plays a great role in public health guarantee.

Drawings

Fig. 1 is a right-side view schematic structural diagram of the present invention;

fig. 2 is a left side view structure diagram of the present invention;

fig. 3 is a schematic rear view of the present invention;

FIG. 4 is a schematic view of the overall distribution structure of the fixed compartment of the present invention;

FIG. 5 is a schematic view of the overall distribution structure of the carriage of the present invention;

fig. 6 is a schematic view of the internal expansion structure of the present invention;

fig. 7 is a schematic view of the top-down expanded structure of the present invention.

In the figure: 1. a loading vehicle; 11. a water purifying tank; 12. a sewage tank; 2. fixing a carriage; 3. expanding the carriage; 31. a monitoring area; 32. a changing area; 33. a single door is opened; 34. a wardrobe; 35. a main control cabinet; 36. monitoring the display; 4. a laboratory work area; 41. a reagent storage preparation area; 411. an ultra-clean bench; 412. an ultra-low temperature refrigerator; 413. a round stool; 414. a first table; 415. a first vehicle-mounted hand-motion control device; 42. a specimen preparation area; 421. a biological safety cabinet is arranged in the device; 422. an ice chest; 423. a second table; 424. a first steam sterilizer; 425. a third working table; 426. a first transmission window; 427. a first buffer room; 428. a first test room; 43. an amplification region; 431. a second buffer room; 432. a second test room; 433. a second pass-through window; 434. a fourth table; 435. a PCR instrument; 436. a second steam sterilizer; 437. a second vehicle-mounted hand-clearing device; 44. repairing the access door; 5. an air conditioning equipment room; 51. an air conditioner outdoor unit; 52. an air supply purification device; 53. an air conditioner maintenance door; 54. a ventilation door; 6. an air exhaust equipment room; 61. an exhaust air purification device; 62. an exhaust system maintenance door; 7. a power distribution control room; 71. a supply and distribution power distribution cabinet; 72. a power distribution maintenance door; 73. and (4) ventilating louver holes.

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. 1-7, the present invention provides an embodiment:

a vehicle-mounted extensible mobile biological safety laboratory comprises a loading vehicle 1, a fixed compartment 2 is connected above the loading vehicle 1, an extended compartment 3 is arranged on the right side of the fixed compartment 2, a laboratory working area 4 is arranged inside the fixed compartment 2, the laboratory working area 4 comprises a reagent storage preparation area 41, a specimen preparation area 42 is arranged on one side of the reagent storage preparation area 41, an expansion area 43 is arranged on the other side of the specimen preparation area 42, a maintenance access door 44 is arranged on the left side and the rear wall of the reagent storage preparation area 41, so that the installation and integration of internal equipment are facilitated, the device is used by matching the partition of the laboratory working area 4 and the extended compartment 3, the size of the working area of the device is greatly improved, the convenience of operators is further improved, the inconvenience in operation caused by narrow space is avoided, an exhaust equipment room 6 is arranged behind the laboratory working area 4, the front of laboratory work area 4 is provided with air conditioning equipment room 5, and the right side of air conditioning equipment room 5 is provided with distribution control room 7.

Further, a clean water tank 11 and a foul water tank 12 are arranged below the body of the cart 1, the clean water tank 11 is connected to the upper part of the water inlet structure of the hand washing device, and the foul water tank 12 is connected to the upper part of the water outlet of the hand washing device.

Further, extension carriage 3 includes the control area 31, the rear of control area 31 is provided with the district 32 of changing clothes, the inside of changing clothes district 32 is provided with wardrobe 34, the inside of control area 31 is provided with main control cabinet 35 and control display 36, single open door 33 has been seted up with the right side of changing clothes district 32 in the control area 31, mainly used experiment monitoring, personnel change clothes and people flow, the commodity circulation access & exit, set up portable partition wall between control area 31 and the district 32 of changing clothes, realize cutting apart in two regions, and can realize adjusting the distribution space in two regions according to actual in service behavior.

Further, the monitoring area 31 is provided with a main control cabinet 35 and a monitoring display 36 in front of the expansion part at the partition wall of the expansion compartment 3 and the fixed compartment 2, an integrated monitoring instrument and control equipment are installed in the main control cabinet 35, and the monitoring display 36 is provided with a display interface of the laboratory running state (temperature, humidity, pressure difference and the like) for the whole monitoring and equipment control of the laboratory.

Further, the reagent storage preparation area 41 is fixedly arranged at the tail part of the laboratory working area 4, the area inside the reagent storage preparation area 41 is designed to be positive pressure +10Pa, and the inside of the reagent storage preparation area 41 is provided with an ultra-clean workbench 411, an ultra-low temperature refrigerator 412, a round stool 413, a first workbench 414 and a first vehicle-mounted hand sterilizing device 415, and is mainly used for experimental reagent storage and work preparation.

Further, the specimen preparation area 42 is fixedly arranged in the middle of the laboratory working area 4, a first test room 428 and a first buffer room 427 are arranged in the laboratory working area 4, a mechanical compression type airtight door is arranged between the first buffer room 427 and the first test room 428 for isolation, the internal area of the first buffer room 427 is designed to be negative pressure of-10 Pa, a passage door is arranged between the first buffer room 427 and the expansion compartment 3, the internal area of the first test room 428 is designed to be negative pressure of-20 Pa, a built-in biological safety cabinet 421, an ice chest 422, a second workbench 423, a first steam sterilizer 424, a third workbench 425 and a first transfer window 426 are arranged in the specimen preparation area 42, and a group of first transfer windows 426 are arranged between the first test room 428 and the expansion compartment 3.

Further, the amplification area 43 is fixedly arranged at the front part of the laboratory working area 4, a second buffer room 431 and a second test room 432 are arranged inside the amplification area 43, a mechanical compression type airtight door is arranged between the second buffer room 431 and the second test room 432 for isolation, the area inside the second buffer room 431 is designed to be negative pressure of-10 Pa, a passage door is arranged between the second buffer room 431 and the expansion compartment 3, the area inside the second test room 432 is designed to be negative pressure of-20 Pa, exclusive experimental facilities such as a fourth workbench 434, a PCR instrument 435, a second steam sterilizer 436 and a second vehicle-mounted hand sterilizing device 437 are arranged inside the second test room 432, and a group of second transfer windows 433 is arranged between the second test room 432 and the first test room 428.

Further, the air conditioning equipment room 5 is fixedly arranged at the left side of the front end of the fixed compartment 2, an air conditioner external unit 51 and an air supply purifying device 52 are arranged inside the air conditioning equipment room 5, and the air conditioner external unit 51 and the air supply purifying equipment 52 are provided with an air conditioner maintenance door 53 corresponding to the side plate position of the fixed carriage 2, the bottom of the air conditioner maintenance door 53 is provided with a ventilation door 54, the arrangement of the ventilation door 54 ensures smooth air inlet and outlet of the external unit, the laboratory ventilation air conditioner equipped with the air conditioner external unit 51 adopts a combined air conditioner treatment system, the air supply system ensures the air quantity required by the laboratory through an air supply blower, the air quantity of the laboratory is controlled through a valve or a fan frequency on an air supply pipeline, the air treated by the HVAC system passes through a safety protection box internally provided with a HEPA filter, is uniformly treated and then is sent into the pipeline, and then is sent into the first buffer room 427, the first test room 428, the second buffer room 431 and the second test room 432 through an air flow distributor.

The exhaust air of the first buffer compartment 427, the first test compartment 428, the second buffer compartment 431 and the second test compartment 432 is exhausted outdoors through an exhaust module, and differential pressure sensors are arranged at two ends of the air supply and exhaust fan and used for detecting the running condition of the fan, so that the interlocking of the air supply and exhaust fan is realized on an automatic control system, the exhaust air is started before the air supply, and then the air supply is closed.

Air supply and exhaust ports of the first buffer room 427, the first test room 428, the second buffer room 431 and the second test room 432 are symmetrically arranged, an air duct is arranged at the top, efficient air supply ports are uniformly distributed to supply air upwards, efficient air exhaust ports are arranged to exhaust air downwards, and air flow organization beneficial to safety of workers is formed.

The system adopts the principle of compression-evaporation of environment-friendly refrigerants, the heating adopts an electric heating mode, the temperature control adopts a PLC (programmable logic controller) to automatically adjust, the temperature control is realized by adopting an intelligent instrument, a temperature sensor is utilized to detect the temperature and send the temperature into the instrument, the temperature is displayed inside the instrument and an alarm signal is output, and the ventilation air-conditioning system is independently controlled and displayed.

The on-vehicle air conditioning system of customization, for the central air conditioning of brand-new wind structure, the system possesses the dehumidification function, adopts and adjusts laboratory humidity, operational environment temperature to air heating cold quiet congeals and humidifier: -25 ℃ to 46 ℃, indoor temperature and humidity design requirements: the temperature is adjustable at 18-25 ℃ and the precision is +/-2 ℃; relative humidity: less than or equal to 60 percent, and all the inlets of the test rooms are provided with a control display disc which comprises the display of temperature, humidity and pressure difference.

Further, the exhaust equipment room 6 is fixedly arranged on the left side of the rear end of the fixed carriage 2, exhaust purification equipment 61 is arranged inside the exhaust equipment room 6, exhaust system maintenance doors 62 are arranged at positions, corresponding to side plates of the fixed carriage 2, of the exhaust purification equipment 61, and the exhaust system maintenance doors 62 are arranged in two groups, so that equipment inside the exhaust purification equipment room can be maintained conveniently.

Further, 7 sets firmly on fixed carriage 2 front end right side between the distribution control, 7 inside between the distribution control sets up supplies to join in marriage switch board 71, the curb plate position department that supplies to join in marriage switch board 71 and correspond fixed carriage 2 is provided with ventilation tripe hole 73, the upper portion of ventilation tripe hole 73 is provided with distribution maintenance door 72, ventilation tripe hole 73 set up the ventilation and heat dissipation of convenient equipment and use, realize the maintenance to equipment through distribution maintenance door 72 simultaneously, 7 mainly used laboratories supply power and use between the distribution control.

The working principle is as follows: when the utility model is used, firstly the device is used by the mutual installation and matching of the loading vehicle 1 and the fixed carriage 2 and the extended carriage 3, before the use, the complete fixed carriage 2 and the extended carriage 3 are installed above the loading vehicle 1, the transfer of the upper fixed carriage 2 and the upper extended carriage 3 is realized by the loading vehicle 1, the rapid deployment of the fixed carriage 2 and the extended carriage 3 is realized so as to meet the emergency treatment requirement of the emergent public health event, and the extended carriage 3 can be extended when the device is used by the mutual matching of the fixed carriage 2 and the extended carriage 3, thereby the working area of a laboratory is increased, through the mutual matching use of each subarea, the normal equipment operation and use in the laboratory can be satisfied, thereby medical personnel can rapidly rush to an epidemic area, the rapid detection of pathogens in the epidemic area is realized, the flow of patients is reduced, therefore, the path and time for virus propagation are reduced, the epidemic situation can be well controlled, the distribution to a designated laboratory for detection is not needed, the sample circulation time is greatly shortened, and the method plays a great role in public health guarantee.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. An on-vehicle extensible removes biological safety laboratory, includes load wagon (1), its characterized in that: a fixed carriage (2) is connected above the loading vehicle (1), an expansion carriage (3) is arranged at the right side of the fixed carriage (2), the interior of the fixed carriage (2) comprises a laboratory working area (4), the laboratory working area (4) comprises a reagent storage preparation area (41), a sample preparation area (42) is arranged at one side of the reagent storage preparation area (41), the other side of the specimen preparation area (42) is provided with an amplification area (43), the left side and the rear wall of the reagent storage preparation area (41) are both provided with a maintenance access door (44), an air exhaust equipment room (6) is arranged behind the laboratory working area (4), the front side of the laboratory working area (4) is provided with an air conditioning equipment room (5), and a power distribution control room (7) is arranged on the right side of the air conditioning equipment room (5).

2. The vehicle-mounted extensible mobile biosafety laboratory according to claim 1, wherein: a water purification tank (11) and a sewage tank (12) are arranged below the body of the loading vehicle (1), the water purification tank (11) is connected to the upper portion of a water inlet structure of the hand washing device, and the sewage tank (12) is connected to the upper portion of a water outlet of the hand washing device.

3. The vehicle-mounted extensible mobile biosafety laboratory according to claim 1, wherein: expansion carriage (3) are including surveillance area (31), the rear of surveillance area (31) is provided with dressing area (32), the inside in dressing area (32) is provided with wardrobe (34), the inside in surveillance area (31) is provided with main control cabinet (35) and control display (36), single open door (33) have been seted up on the right side in surveillance area (31) and dressing area (32).

4. The vehicle-mounted extensible mobile biosafety laboratory according to claim 3, wherein: the monitoring area (31) is arranged in front of the expansion part, and a main control cabinet (35) and a monitoring display (36) are arranged at the partition wall of the expansion compartment (3) and the fixed compartment (2); install integrated monitor meter and controlgear in main control cabinet (35), laboratory running state (temperature, humidity, pressure differential etc.) display interface is established in monitor display (36).

5. The vehicle-mounted extensible mobile biosafety laboratory according to claim 1, wherein: reagent storage preparation district (41) sets firmly the afterbody in laboratory work area (4), the inside regional design of reagent storage preparation district (41) is malleation +10Pa, the inside of reagent storage preparation district (41) is provided with superclean bench (411), ultra-low temperature refrigerator (412), round bench (413), first workstation (414) and first on-vehicle hand disappear device (415).

6. The vehicle-mounted extensible mobile biosafety laboratory according to claim 1, wherein: the specimen preparation area (42) is fixedly arranged in the middle of the laboratory working area (4), the interior of the laboratory working area (4) is provided with a first test room (428) and a first buffer room (427), a mechanical compression type airtight door isolation is arranged between the first buffer room (427) and the first test room (428), the inner area of the first buffer room (427) is designed to be negative pressure of-10 Pa, an access door is arranged between the first buffer room (427) and the expanded carriage (3), the inner area of the first test room (428) is designed to be negative pressure of-20 Pa, the sample preparation area (42) is internally provided with special experimental facilities such as a biological safety cabinet (421), an ice chest (422), a second workbench (423), a first steam sterilizer (424), a third workbench (425) and a first transmission window (426), a group of first transfer windows (426) is arranged between the first test room (428) and the expansion compartment (3).

7. The vehicle-mounted extensible mobile biosafety laboratory according to claim 1, wherein: the amplification zone (43) is fixedly arranged at the front part of the laboratory working area (4), a second buffer room (431) and a second test room (432) are arranged inside the amplification zone (43), a mechanical compression type sealed door isolation is arranged between the second buffer room (431) and the second test room (432), the inner area of the second buffer room (431) is designed to be negative pressure of-10 Pa, an access door is arranged between the second buffer room (431) and the expanded carriage (3), the inner area of the second test room (432) is designed to be negative pressure of-20 Pa, exclusive experimental equipment such as a fourth worktable (434), a PCR instrument (435), a second steam sterilizer (436), a second vehicle-mounted hand sterilization device (437) and the like is arranged inside the second test room (432), a group of second transmission windows (433) is arranged between the second test room (432) and the first test room (428).

8. The vehicle-mounted extensible mobile biosafety laboratory according to claim 1, wherein: the air conditioning equipment room (5) is fixedly arranged on the left side of the front end of the fixed carriage (2), an air conditioner external unit (51) and an air supply purifying device (52) are arranged inside the air conditioning equipment room (5), an air conditioner maintenance door (53) is arranged at the position, corresponding to the side plate of the fixed carriage (2), of the air conditioner external unit (51) and the air supply purifying device (52), and a ventilation door (54) is arranged at the bottom of the air conditioner maintenance door (53).

9. The vehicle-mounted extensible mobile biosafety laboratory according to claim 1, wherein: the air exhaust equipment room (6) is fixedly arranged on the left side of the rear end of the fixed carriage (2), air exhaust purification equipment (61) is arranged inside the air exhaust equipment room (6), an air exhaust system maintenance door (62) is arranged at the position, corresponding to a side plate of the fixed carriage (2), of the air exhaust purification equipment (61), and two groups of air exhaust system maintenance doors (62) are arranged.

10. The vehicle-mounted extensible mobile biosafety laboratory according to claim 1, wherein: between the distribution control (7) set firmly on fixed carriage (2) front end right side, the inside of distribution control room (7) sets up supplies to join in marriage switch board (71), the curb plate position department that supplies to join in marriage switch board (71) and correspond fixed carriage (2) is provided with ventilation tripe hole (73), the upper portion in ventilation tripe hole (73) is provided with distribution maintenance door (72).

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