A subway car air conditioning unit installation device

Abstract

The present application relates to a subway car air conditioning unit installation device, which relates to the technical field of air conditioning units. The installation device includes a body, an inspection port, and a blocking device. The blocking device includes: a sealing ring, which is arranged on the body and makes the inspection port located on the inner side of the sealing ring; an inspection door, which is rotatably installed on the body and has a sealing cavity. When the inspection door abuts against the body, the sealing ring is located in the sealing cavity and abuts against the sealing cavity to achieve positioning and sealing; a positioning support mechanism, which is arranged on the body and is used to support and position the inspection door. The present application positions and supports the inspection door through the inspection port, and then the air conditioning unit can be inspected through the inspection port. After the inspection is completed, the inspection door abuts against the body to close the inspection port, so that the sealing ring extends into the sealing cavity for sealing, thereby improving the inspection efficiency and service life of the air conditioning unit.

Description

Technical Field

[0001] The present application relates to the technical field of air-conditioning units, and in particular to a subway car air-conditioning unit installation device. Background Art

[0002] Rail transit trains refer to a type of transportation vehicle that needs to travel on specific tracks, such as subways and trains. With the continuous development of rail transit in my country, trains have become one of the most common ways for people to travel. In order to ensure the comfort of passengers, air conditioners are usually installed on the top of the train to control the temperature in the car.

[0003] In the existing subway vehicle design, the air conditioning unit is an important environmental control device, and the design of its installation equipment is crucial. Traditional subway vehicle air conditioning units are generally installed inside the installation equipment through multiple inspection ports. After the installation is completed, the inspection door is fixed to the installation equipment with screws to seal the inspection port. At the same time, the inspection door needs to be removed for subsequent maintenance, which leads to low maintenance efficiency of the air conditioning unit and reduces the operating efficiency of the air conditioning unit. In addition, due to the gap between the inspection door and the inspection port, the sealing is poor, which also reduces the service life of the air conditioning unit. Summary of the invention

[0004] In order to improve the maintenance efficiency and service life of air-conditioning units, the present application provides a subway car air-conditioning unit installation device.

[0005] The present application provides a subway car air conditioning unit installation device, which adopts the following technical solution:

[0006] A subway car air conditioning unit installation device comprises a body and an inspection port opened on the body, wherein the body is provided with a blocking device for blocking the inspection port, and the blocking device comprises:

[0007] A sealing ring is arranged on the machine body so that the inspection port is located inside the sealing ring;

[0008] The inspection door is rotatably mounted on the machine body through a rotating shaft and is provided with a sealing cavity. When the inspection door abuts against the machine body, the sealing ring is located in the sealing cavity and abuts against the sealing cavity to achieve positioning and sealing;

[0009] The positioning support mechanism is arranged on the machine body and is used to support and position the inspection door and seal the inspection port; or, the positioning support mechanism is used to support and position the inspection door when it is open and facilitate the inspection of the air-conditioning unit.

[0010] By adopting the above technical solution, during maintenance, the positioning support mechanism unlocks the inspection door and pushes the inspection door to open the inspection port. The positioning support mechanism positions and supports the position of the inspection door, and then the air-conditioning unit can be inspected through the inspection port. After the maintenance is completed, the positioning support mechanism unlocks the support for the inspection door, so that the inspection door abuts against the body to close the inspection port, thereby allowing the sealing ring to extend into the sealing cavity and abut against the sealing cavity for positioning. Therefore, the cooperation between the sealing ring and the sealing cavity can also improve the sealing of the air-conditioning unit, block the entry of external moisture, and improve the maintenance efficiency and service life of the air-conditioning unit.

[0011] Optionally, the positioning support mechanism includes:

[0012] A positioning rod, threaded onto the access door;

[0013] A positioning piece is arranged on the positioning rod and pressed against the machine body for positioning, or the positioning rod rotates to drive the positioning piece away from the machine body and to the inside of the inspection port to achieve unlocking;

[0014] The support assembly is arranged on the inspection door, and when the inspection door is opened, the support assembly is used to support and position the inspection door.

[0015] By adopting the above technical solution, when locking is required, the positioning rod is rotated to drive the positioning piece to rotate toward the machine body and approach the machine body, so that the positioning piece is pressed against the machine body for positioning; when unlocking, the positioning rod is rotated to drive the positioning piece to rotate and move away from the machine body, so that the positioning piece is rotated to the inside of the inspection port, and then the inspection door can be rotated to open the inspection port, and then the support assembly is started to support and position the inspection door.

[0016] By rotating and moving the positioning piece at the same time, when locked, a greater squeezing force is generated between the positioning piece and the body, thereby improving the positioning effect and extending the service life of the air-conditioning unit. When unlocked, the positioning piece rotates away from the body, reducing the force required to rotate the positioning piece and improving the convenience during operation, thereby improving the maintenance efficiency and service life of the air-conditioning unit.

[0017] Optionally, the support assembly includes:

[0018] A rotating ring, which is rotatably arranged on the access door;

[0019] A support rod is arranged on the rotating ring;

[0020] A support ring, arranged on the support rod;

[0021] Two clips, arranged on the inspection door;

[0022] The support member is arranged on the machine body; when the inspection door is opened, the support ring is sleeved on the support member for supporting and positioning; when the inspection door blocks the inspection port, the support rod is clamped and installed on two clips for positioning.

[0023] By adopting the above technical solution, after opening the inspection door, the support rod is rotated out from between the two clips, and then the support ring is put on the support member. The support ring is pressed against the support member under the action of the gravity of the inspection door. Therefore, the support rod and the rotating ring cooperate to support and position the inspection door. Therefore, the staff can perform inspection through the inspection port. After the inspection is completed, the support ring is removed from the support member, and then the support rod is clamped and installed between the two clips for positioning. Therefore, the next time inspection is needed, the support rod can be easily removed for installation, and finally the inspection door is closed. This greatly improves the convenience of supporting and positioning the inspection door and improves the inspection efficiency.

[0024] Optionally, the two clips are formed with an arc-shaped clamping surface that fits the support rod and a clamping opening for the support rod to pass through. When the inspection door is closed, the support rod is pressed against the clip located below the support rod under the action of gravity so that the clamping opening is located on one side of the support rod.

[0025] By adopting the above technical solution, the support rod is moved to the clamping mouth, and the support rod squeezes the two clamps away from each other, so that the two clamping surfaces are pressed against the support rod for positioning. At the same time, the support rod is pressed against the supporting surface under the action of gravity, and the support mouth is located on one side of the support rod. Therefore, the probability of the support rod detaching from between the two clamps under the action of gravity is reduced, thereby improving the positioning effect of the support rod.

[0026] Optionally, a receiving groove is provided on the inspection door, the top of the positioning rod is located in the receiving groove and is provided with a screwing portion that is plugged into and cooperates with a tool to drive the positioning rod to rotate.

[0027] By adopting the above technical solution, the twisting part is located in the accommodating groove, thereby reducing the probability of misoperation caused by external force applied to the twisting part. The twisting part also requires tools to open the inspection door, so that the inspection door must be opened by professionals using special tools, further improving the convenience and stability of air-conditioning unit maintenance.

[0028] Optionally, the inspection door is a shell structure in which a sealed cavity is formed by stamping a thin plate structure, a receiving box formed by stamping is arranged in the sealed cavity and located at the receiving groove, and the positioning rod is threadedly connected to the inner wall of the receiving box.

[0029] By adopting the above technical solution, the weight of the inspection door is greatly reduced while a sealed cavity is designed. The strength of the inspection door is also improved by stamping. The positioning rod is threadedly connected to the receiving box for installation. While satisfying the need for installing the positioning rod, the weight of the inspection door is further reduced, thereby improving the inspection efficiency and service life of the air-conditioning unit.

[0030] Optionally, the positioning support mechanism includes:

[0031] The first slider and the second slider are respectively slidably arranged on the machine body and the inspection door in a direction close to or away from the rotation axis, and a rotating column 1 is arranged on the inspection door and located on the side of the second slider close to the rotation axis and between the rotation axis and the second slider;

[0032] A rotating rod, both ends of which rotate with the first slider and the rotating column 1 respectively and are provided with a rotating column 2 whose axis is parallel to the axis of the rotating column 1;

[0033] The force dividing rod has two ends which are rotatably connected to the second rotating column and the second sliding block respectively. When the inspection door is closed, the first sliding block and the second sliding block, the rotating rod and the force dividing rod are all located in the sealing cavity;

[0034] A locking assembly for positioning the first slider when the access door is opened or closed;

[0035] A push assembly is used to unlock the first slide position when the access door is closed.

[0036] By adopting the above technical solution, when maintenance is required, the pushing component is started so that the locking component releases the locking effect of the first slider and unlocks it, and then the inspection door can be rotated. The inspection door rotates to drive the rotating rod to rotate and move at the same time, that is, the rotating column rotates upward, so the rotation and movement of the rotating rod will pull the first slider close to the rotating shaft, and the rotation of the rotating rod also drives the force component rod to rotate and move, thereby moving the second slider. When the inspection door is opened, the locking component is plugged into and installed on the machine body for positioning.

[0037] Therefore, after the inspection door is opened, a triangular support is formed by the rotating shaft, the rotating column and the first slider. This support has strong stability and can divide the force of the inspection door, thereby improving the supporting effect of the inspection door. Moreover, the force dividing rod and the second slider can further disperse the gravity of the inspection door, further improving the supporting effect of the inspection door. At the same time, when the locking assembly is damaged and the inspection door has no supporting force to maintain a stable state, the gravity of the inspection door can be decomposed into forces in multiple directions through this structure, so that the force pushing the first slider and the second slider to move is greatly reduced, and the friction between the first slider and the machine body plus the friction between the second slider and the inspection door can further reduce the impact force on the machine body or the staff caused by the downward rotation of the inspection door, thereby greatly improving the maintenance efficiency and safety during the maintenance process.

[0038] After the inspection is completed, the locking assembly is unlocked, and the inspection door is pressed down to rotate, so that the inspection door is against the body to close the inspection port, and the first slider, the second slider, the rotating rod and the force dividing rod are all located in the sealed cavity for storage, thereby further improving the safety of the above structure. Since the first slider is located in the sealed cavity, the position of the first slider is unlocked by the pushing assembly when the inspection door is closed. Therefore, during the rotation of the inspection door, only the locking assembly and the pushing assembly need to cooperate to realize the opening or closing of the inspection door, which improves the convenience of rotating and opening the inspection door, thereby improving the inspection efficiency of the air-conditioning unit.

[0039] Optionally, the locking assembly includes:

[0040] A locking rod is slidably disposed on the first sliding block in a direction approaching or moving away from the machine body;

[0041] The spring is connected with the first slider and the locking rod; when the inspection door is opened or closed, the locking rod is inserted and installed on the machine body under the action of the spring for positioning.

[0042] By adopting the above technical solution, when the inspection door needs to be opened, the pushing assembly pushes the locking rod to disengage from the machine body, and at the same time rotates the inspection door upward, so that the first slider and the second slider move. Therefore, the movement of the first slider drives the locking rod to move together, so that the locking rod is pressed against the machine body and moves under the action of the spring, thereby further reducing the force required to overcome the rotation of the inspection door. After the inspection door is opened, the locking rod is plugged and installed on the machine body for positioning under the action of the spring, thereby supporting and positioning the inspection door. When the inspection door needs to be closed, the locking rod is pushed to disengage from the machine body, and then the inspection door can be pressed down to close, thereby further improving the convenience of opening or closing the inspection door, thereby improving the maintenance efficiency of the air-conditioning unit.

[0043] Optionally, the pushing component includes:

[0044] The spring sheet has two ends arranged on the sealing cavity and is elastic;

[0045] A push rod is arranged on the spring sheet and is slidably mounted on the inspection door and extends to the outside of the inspection door; when the inspection door needs to be opened, the push rod drives the spring sheet to move and pushes the locking rod to be separated from the machine body.

[0046] By adopting the above technical solution, the push rod pushes the spring sheet to move, and the movement of the spring sheet pushes the locking rod to disengage from the machine body, and at the same time rotates the inspection door upward, so that the first slider position is unlocked when the inspection door is closed, which improves the convenience of unlocking the inspection door when it is closed and improves the maintenance efficiency.

[0047] Optionally, the locking rod is provided with an arc-shaped guide angle for easy insertion and installation on the machine body.

[0048] By adopting the above technical solution, the convenience of opening or closing the inspection door is further improved, thereby improving the inspection efficiency of the air-conditioning unit.

[0049] In summary, the present application includes at least one of the following beneficial technical effects:

[0050] The inspection door is positioned and supported by the positioning support mechanism, and then the air-conditioning unit can be inspected through the inspection port. After the inspection is completed, the positioning support mechanism is unlocked, so that the inspection door is pressed against the body to close the inspection port, so that the sealing ring extends into the sealing cavity and presses against the sealing cavity for positioning. Therefore, the cooperation between the sealing ring and the sealing cavity can also improve the sealing of the air-conditioning unit, block the entry of external moisture, and improve the inspection efficiency and service life of the air-conditioning unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the installation equipment, and the inspection door is in an open state;

[0052] Figure 2 yes Figure 1 The enlarged schematic diagram of the middle A part;

[0053] Figure 3 yes Figure 1 The enlarged schematic diagram of the middle part B;

[0054] Figure 4 It is a partial structural schematic diagram of the first embodiment of the installation device;

[0055] Figure 5 It is a partial structural schematic diagram of the second embodiment of the installation device;

[0056] Figure 6 yes Figure 5 The enlarged schematic diagram of the middle C part;

[0057] Figure 7 yes Figure 5 The enlarged schematic diagram of the middle D part;

[0058] Figure 8 1 is a schematic diagram of the structure of the locking assembly in the second embodiment of the air-conditioning unit, in which the side wall of the first sliding block is cut away.

[0059] Figure numerals: 1, machine body; 11, inspection port; 12, rotating plate; 2, blocking device; 21, sealing ring; 22, inspection door; 23, sealing chamber; 24, receiving groove; 25, receiving box; 26, screwing part; 3, positioning support mechanism; 31, positioning rod; 32, positioning sheet; 4, support assembly; 41, rotating ring; 42, support rod; 43, support ring; 44, clip; 45, support member; 46, support hole; 47, connecting hole; 48, Clamping surface; 49, clamping mouth; 51, first slider; 52, second slider; 53, rotating rod; 54, force dividing rod; 55, slideway; 551, first plug hole; 552, second plug hole; 56, slide rail; 57, rotating column one; 58, rotating column two; 6, locking assembly; 61, locking rod; 62, spring; 63, sliding part; 64, plug-in part; 65, guide angle; 66, locking groove; 7, pushing assembly; 71, spring; 72, push rod. DETAILED DESCRIPTION

[0060] The following is combined with Figure 1-8 This application is described in further detail.

[0061] The embodiment of the present application discloses a subway car air conditioning unit installation device.

[0062] Embodiment 1

[0063] Reference Figure 1 The subway car air-conditioning unit installation equipment includes a body 1 for installing the air-conditioning unit, and an inspection port 11 opened on the body 1. The air-conditioning unit is located in the body 1; a blocking device 2 for blocking the inspection port 11 is provided on the body 1. The blocking device 2 is used to block and seal the inspection port 11. When maintenance is required, the blocking device 2 opens the inspection port 11 to facilitate maintenance of the air-conditioning unit.

[0064] Reference Figure 1-3 The inspection port 11 is located on the upper surface of the machine body 1 and is arranged in multiple intervals as required. The blocking device 2 is arranged in multiple and corresponds to the multiple inspection ports 11. The blocking device 2 includes a sealing ring 21, an inspection door 22 and a positioning support mechanism 3. The sealing ring 21 is fixedly mounted on the upper surface of the machine body 1 and is in a vertical state. The sealing ring 21 is annular and the inspection port 11 is located inside the sealing ring 21; the inspection door 22 is a shell structure formed by stamping a thin metal plate. The inspection door 22 is rotatably mounted on the upper surface of the machine body 1 through a rotating shaft, and a sealing cavity 23 is formed on the side of the inspection door 22 close to the machine body 1. When the inspection door 22 abuts against the machine body 1 to close the inspection port 11, the sealing ring 21 is located in the sealing cavity 23, and the top of the sealing ring 21 abuts against the sealing cavity 23 for sealing, thereby improving the sealing effect at the inspection port 11.

[0065] The positioning support mechanism 3 is arranged on the body 1. When the inspection door 22 is used to block the inspection port 11, the positioning support mechanism 3 is used to position the inspection door 22; when the inspection door 22 opens the inspection port 11 to inspect the air-conditioning unit, the positioning support mechanism 3 is used to support and position the inspection door 22.

[0066] The positioning support mechanism 3 includes a positioning rod 31, a positioning plate 32 and a support assembly 4. The side wall of the inspection door 22 is away from the sealing cavity 23 and is located on the side away from the rotating shaft. A plurality of receiving grooves 24 connected to the sealing cavity 23 are spaced apart. A receiving box 25 is fixedly installed at each receiving groove 24 and located in the sealing cavity 23. The receiving box 25 is formed by stamping a metal sheet, and the inside of the receiving box 25 is connected to the receiving groove 24.

[0067] There are multiple positioning rods 31 and they are arranged one by one corresponding to the multiple accommodating boxes 25. The positioning rods 31 are threadedly connected to the inner wall of the accommodating box 25. One end of the positioning rod 31 extends into the accommodating groove 24 and is provided with a screwing portion 26 with a regular polygonal cross-section. The screwing portion 26 is convenient for rotation after being plugged into and matched with a tool, and the other end of the positioning rod 31 passes through the sealing cavity 23 and extends to the outside of the inspection door 22; the positioning sheet 32 ​​is fixedly installed on the end of the positioning rod 31 extending outside the inspection door 22.

[0068] When the inspection door 22 abuts against the machine body 1 to close the inspection opening 11, the end of the positioning rod 31 close to the positioning piece 32 and the positioning piece 32 both pass through the inspection opening 11 and extend into the machine body 1, and the positioning rod 31 rotates to drive the positioning piece 32 to move from the inside of the inspection opening 11 to the outside and the positioning piece 32 moves upward to the machine body 1, so that the positioning piece 32 is pressed against the machine body 1 for positioning, so that there is a certain squeezing force between the positioning piece 32 and the machine body 1, thereby achieving the positioning of the positioning piece 32; when opening, the positioning rod 31 rotates to drive the positioning piece 32 to rotate toward the inside of the inspection opening 11 and downward away from the machine body 1, so that the positioning piece 32 moves to the inside of the inspection opening 11, and the positioning piece 32 moves downward away from the machine body 1 as it rotates, thereby greatly reducing the force required for the positioning piece 32 to separate from the machine body 1.

[0069] Reference Figure 3-4 The support assembly 4 is arranged on the inspection door 22. When the inspection door 22 is opened, the support assembly 4 is used to support and position the inspection door 22. The support assembly 4 includes a rotating ring 41, a supporting rod 42, a supporting ring 43, two clips 44 and a supporting member 45. A fixing plate is fixedly installed on the inner wall of the sealing cavity 23, and a fixing hole is opened on the fixing plate; the rotating ring 41 passes through the fixing hole and is rotatably connected to the fixing plate; one end of the supporting rod 42 is fixedly installed on the rotating ring 41, and the supporting ring 43 is fixedly installed on the other end of the supporting rod 42; the two clips 44 are fixedly installed on the inner wall of the sealing cavity 23, and the two clips 44 are located on one side of the fixing plate.

[0070] The support member 45 is fixedly mounted on the machine body 1 and is located in the inspection port 11, and a support hole 46 is provided on the support member 45, the axis of the support hole 46 is in a horizontal state, and a connecting hole 47 connected to the support hole 46 is provided on the outer wall of the support member 45, and the connecting hole 47 is located above the lowest point of the support hole 46; when the inspection door 22 is opened, the support ring 43 is moved into the support hole 46 through the connecting hole 47, so that the support ring 43 is rotated and sleeved on the support member 45, and the support ring 43 is pressed against the support hole 46 and the support member 45 under the action of gravity of the inspection door 22 for positioning.

[0071] After the inspection is completed, the support ring 43 is removed from the support member 45 through the connecting hole 47, and then the support rod 42 is rotated to approach the two clips 44, so that the two clips 44 clamp the support rod 42 for positioning; the two clips 44 are provided with clamping surfaces 48, which are arc-shaped and tightly pressed against the support rod 42 for positioning, and at the same time, the two clips 44 are formed with clamping openings 49 at the ends away from the sealing chamber 23; when the inspection door 22 is closed, the support rod 42 is pressed against the clips 44 located below the support rod 42 under the action of gravity, so that the clamping opening 49 is located on one side of the support rod 42. A plurality of rotating plates 12 are fixedly installed at intervals on the side wall of the inspection door 22 away from the rotating shaft, and the rotating plates 12 facilitate the rotation of the inspection door 22.

[0072] The working principle of the embodiment of the present application is as follows:

[0073] When maintenance is required, the positioning rod 31 is turned to drive the positioning piece 32 to the inside of the inspection port 11 and away from the body 1, the inspection door 22 is rotated to open the inspection port 11, the support rod 42 is taken out from between the two clamping pieces 44, and the support ring 43 is sleeved on the support member 45 through the connecting hole 47, so as to support and position the position of the inspection door 22. Then the staff performs maintenance through the inspection port 11. After the maintenance is completed, the support ring 43 is removed from the support member 45, the support rod 42 is rotated to be installed on the two clamping surfaces 48 for positioning, the inspection door 22 is rotated to abut against the body 1 to close the inspection port 11, and the sealing ring 21 extends into the sealing cavity 23 and abuts against the sealing cavity 23 for sealing, thereby improving the maintenance efficiency during maintenance and the life of the air-conditioning unit.

[0074] Embodiment 2

[0075] Reference Figure 5 The difference between this embodiment and embodiment 1 is that the positioning support mechanism 3 includes a first slider 51 , a second slider 52 , a rotating rod 53 and a force distribution rod 54 .

[0076] Reference Figure 1 , Figure 5A slideway 55 is fixedly installed on the upper surface of the body 1 and located on one side of the sealing ring 21, and a slide rail 56 is fixedly installed on the inner wall of the sealing cavity 23 and located on the side away from the rotating shaft.

[0077] Reference Figure 5-7 The first slider 51 is slidably installed on the slideway 55, and the second slider 52 is slidably installed on the slide rail 56. The sliding directions of the first slider 51 and the second slider 52 are both in the direction close to or away from the rotating shaft, and the first slider 51 slides in the horizontal direction; a horizontal rotating column 57 is fixedly installed on the inner wall of the sealing cavity 23 and located on the side close to the rotating shaft. The axes of the rotating column 57 and the rotating shaft are parallel, and the rotating column 57 is located between the rotating shaft and the first slider 51.

[0078] One end of the rotating rod 53 is rotatably mounted on the top of the first slider 51 and the other end is rotatably connected to the rotating column 1 57. A rotating column 2 58 is fixedly mounted on the rotating rod 53 and located between the rotating column 1 57 and the first slider 51, and the axes of the rotating column 1 57 and the rotating column 2 58 are parallel. At the same time, the rotating column 2 58 is located on the side close to the rotating column 1 57; one end of the force dividing rod 54 is rotatably mounted on the side wall of the second slider 52 and the other end is rotatably mounted on the second slider 52. The axes of rotation directions of the force dividing rod 54 and the rotating rod 53 are parallel to each other.

[0079] The friction between the second slider 52 and the slide rail 56 is greater than the friction between the first slider 51 and the slide 55. When the inspection door 22 rotates, the rotating rod 53 is driven to pull the first slider 51 to move on the slide 55. The rotation of the rotating rod 53 also pulls the second slider 52 to move through the force-dividing rod 54. The friction between the second slider 52 and the slide rail 56 can achieve basic positioning of the inspection door 22, reducing the force required to prevent the inspection door 22 from closing when it is open, and also reducing the downward impact force of the inspection door 22 on the machine body 1 or the staff when it loses force support.

[0080] Reference Figure 5 , 6 8. The positioning support mechanism 3 further includes a locking assembly 6, which is used to position the first slider 51 when the inspection door 22 is opened or closed. The locking assembly 6 includes a locking rod 61 and a spring 62. A locking groove 66 is provided on the side wall of the first slider 51. The locking rod 61 includes a sliding portion 63 and a plug-in portion 64. The sliding portion 63 is disc-shaped and is slidably mounted on the locking groove 66. The sliding portion 63 slides in a direction close to or away from the slideway 55. The plug-in portion 64 is coaxially fixedly mounted on the sliding portion 63, and an arc-shaped guide angle 65 is provided at one end of the plug-in portion 64 close to the slideway 55.

[0081] The spring 62 is sleeved on the plug-in portion 64 and pressed against the sliding portion 63 and the bottom of the locking groove 66. The slideway 55 is provided with a first plug hole 551 and a second plug hole 552 along the sliding direction of the first slider 51. The first plug hole 551 is located near the second plug hole 552 and near the rotating shaft. When the inspection door 22 is closed, the rotating rod 53, the force distribution rod 54, the first slider 51 and the second slider 52 are all located in the sealing chamber 23.

[0082] Reference Figure 1 , 6 8. When the inspection door 22 is opened, the rotating column 57 is located above the rotating shaft, and the plug-in portion 64 is plugged and installed on the first socket 551 for positioning under the action of the spring 62. At this time, the rotating rod 53 and the force-dividing rod 54 cooperate to support and position the inspection door 22. When it needs to be unlocked, the plug-in portion 64 is pushed back into the first socket 551 and the inspection door 22 is pressed down. Therefore, the plug-in portion 64 is disengaged from the first socket 551 under the action of the guide angle 65, and then the inspection door 22 can continue to be pressed down so that the inspection door 22 abuts against the machine body 1 to block the inspection port 11. The plug-in portion 64 is plugged and installed on the second socket 552 for positioning.

[0083] Reference Figure 5 , 7 The positioning support mechanism 3 also includes a pushing component 7, which is arranged on the inspection door 22 and is used to unlock the first slider 51 when the inspection door 22 is closed. The pushing component 7 includes a spring piece 71 and a push rod 72. Both ends of the spring piece 71 are fixedly mounted on the side walls of the sealing chamber 23 and are elastic. The push rod 72 is fixedly mounted on the spring piece 71 and slidably penetrates the inspection door 22. The push rod 72 extends to the outside of the inspection door 22; when the inspection door 22 is closed, the spring piece 71 is aligned with and contacts the plug-in portion 64.

[0084] When unlocking is required, the push rod 72 is pushed to drive the spring sheet 71 to move, and the spring sheet 71 pushes the plug-in portion 64 to retract into the second plug hole 552, and at the same time pushes the inspection door 22 upward, so that the plug-in portion 64 can be disengaged from the second plug hole 552, thereby unlocking the inspection door 22. When the push rod 72 is released, it moves back to its original position under the elastic force of the spring sheet 71.

[0085] The working principle of the embodiment of the present application is as follows:

[0086] When it is necessary to open the inspection door 22, the push rod 72 is pushed to drive the plug-in portion 64 to retract into the second insertion hole 552 and rotate the inspection door 22 upward to open the inspection door 22. When the inspection door 22 is opened, the rotating rod 53 is driven to rotate and the first sliding block 51 is pulled to move. At the same time, the rotating rod 53 rotates and drives the second sliding block 52 to move through the force-dividing rod 54. After the inspection door 22 is opened, the plug-in portion 64 is plugged and installed on the first insertion hole 551 for positioning, so as to support and position the inspection door 22, so that the staff can repair the air-conditioning unit. After the maintenance is completed, the plug-in portion 64 is pushed to retract into the first insertion hole 551 and the inspection door 22 is pressed down at the same time, so that the inspection door 22 is abutted against the body 1 to close the inspection port 11. At the same time, the plug-in portion 64 is plugged and installed on the second insertion hole 552 for positioning, so as to realize the maintenance of the air-conditioning unit. Therefore, the convenience and safety of the rotation process of the inspection door 22 are greatly improved, and the maintenance efficiency of the air-conditioning unit is improved.

[0087] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A subway car air conditioning unit installation device, characterized in that: The invention comprises a body (1) for installing an air conditioning unit, and an inspection opening (11) provided on the body (1), wherein the body (1) is provided with a blocking device (2) for blocking the inspection opening (11), and the blocking device (2) comprises: A sealing ring (21) is arranged on the machine body (1) such that the inspection opening (11) is located inside the sealing ring (21); An inspection door (22) is rotatably mounted on the machine body (1) via a rotating shaft and is provided with a sealing cavity (23); when the inspection door (22) abuts against the machine body (1), the sealing ring (21) is located in the sealing cavity (23) and abuts against the sealing cavity (23) to achieve positioning and sealing; A positioning support mechanism (3) is arranged on the machine body (1) and is used to support and position the inspection door (22) and seal the inspection opening (11); or, the positioning support mechanism (3) is used to support and position the inspection door (22) when it is open and facilitate inspection of the air conditioning unit; The positioning support mechanism (3) comprises: A positioning rod (31) threadedly connected to the inspection door (22); A positioning piece (32) is arranged on the positioning rod (31) and is pressed against the machine body (1) for positioning, or the positioning rod (31) rotates to drive the positioning piece (32) away from the machine body (1) and to the inside of the inspection opening (11) to achieve unlocking; The support assembly (4) is arranged on the inspection door (22); when the inspection door (22) is opened, the support assembly (4) is used to support and position the inspection door (22).

2. The subway car air conditioning unit installation device according to claim 1, characterized in that: The support assembly (4) comprises: A rotating ring (41) rotatably mounted on the inspection door (22); A support rod (42) is arranged on the rotating ring (41); A support ring (43) is arranged on the support rod (42); Two clips (44) are arranged on the inspection door (22); The support member (45) is arranged on the machine body (1); when the inspection door (22) is opened, the support ring (43) is sleeved on the support member (45) for support and positioning; when the inspection door (22) blocks the inspection opening (11), the support rod (42) is clamped and mounted on two clips (44) for positioning.

3. The subway car air conditioning unit installation device according to claim 2, characterized in that: The two clamping pieces (44) are formed with arc-shaped clamping surfaces (48) that fit the support rod (42) and a clamping opening (49) for the support rod (42) to pass through. When the inspection door (22) is closed, the support rod (42) is pressed against the clamping piece (44) located below the support rod (42) under the action of gravity, so that the clamping opening (49) is located on one side of the support rod (42).

4. The subway car air conditioning unit installation device according to claim 1, characterized in that: The inspection door (22) is provided with a receiving groove (24), the top of the positioning rod (31) is located in the receiving groove (24) and is provided with a screwing portion (26) which is plugged into and matched with a tool to drive the positioning rod (31) to rotate.

5. The subway car air conditioning unit installation device according to claim 4, characterized in that: The inspection door (22) is a shell structure in which a sealed cavity (23) is formed by stamping a thin plate structure. A accommodating box (25) formed by stamping is provided in the sealed cavity (23) and at the accommodating groove (24). The positioning rod (31) is threadedly connected to the inner wall of the accommodating box (25).

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