Operation and maintenance vehicle

Abstract

The utility model relates to an operation and maintenance vehicle, and belongs to the technical field of server operation and maintenance, the operation and maintenance vehicle comprises a sliding base, a driving type telescopic column is mounted on the sliding base, the extending end of the driving type telescopic column is connected with a stand column, the stand column is slidably connected with a lifting seat, the lifting seat is driven by a driving unit to ascend and descend, and a grabbing unit used for grabbing a server is mounted on the lifting seat. The multi-layer drawer type immersion liquid refrigerator has the advantages that the multi-layer drawer type immersion liquid refrigerator is suitable for grabbing servers in the multi-layer drawer type immersion liquid refrigerator, and the operation and maintenance operation meeting the low channel passing requirement can be achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of server operation and maintenance, and in particular to an operation and maintenance vehicle. BACKGROUND

[0002] With the continuous expansion of data centers and the increasing demand for space utilization and server installation density, multi-layer drawer type immersion liquid cooling cabinets (for example, a multi-layer immersion liquid cooling system disclosed in CN118647175A and a liquid cooling cabinet disclosed in CN215872521U) have become one of the structures for server deployment due to their excellent high-density layout advantages. Such liquid cooling cabinets usually have multiple layers of drawers, each of which can carry multiple servers, and the overall height is relatively high, the number of layers is relatively large, and the vertical arrangement of servers is more compact, which puts higher requirements on the operation and maintenance of the equipment.

[0003] When replacing, maintaining or transporting servers in the immersion liquid cooling cabinet, the operation and maintenance vehicle usually undertakes the task of grabbing and transporting the servers. However, the existing operation and maintenance vehicles (for example, an immersion liquid cooling server hoisting and operation robot disclosed in CN117284949A, an operation and maintenance vehicle disclosed in CN114513938A and a server transport vehicle disclosed in CN206088851U) mostly adopt fixed height structures or simple lifting structures, and their lifting range is limited, which is difficult to cover all server positions of the multi-layer liquid cooling cabinet, especially cannot effectively grab servers located at high or low layers. If the fixed height of the existing operation and maintenance vehicle is directly increased, it will be difficult to pass through the door opening or transportation channel of the equipment during the transportation process after the server is grabbed by the operation and maintenance vehicle due to the high overall structure. Therefore, the existing operation and maintenance vehicle is not suitable for grabbing and transporting servers in the multi-layer drawer type immersion liquid cooling cabinet. UTILITY MODEL CONTENT

[0004] In order to realize the operation and maintenance operation suitable for grabbing servers in the multi-layer drawer type immersion liquid cooling cabinet and passing through low channels, the application provides an operation and maintenance vehicle.

[0005] The operation and maintenance vehicle provided by the application adopts the following technical scheme:

[0006] An operation and maintenance vehicle comprises a sliding base, a driving telescopic column is installed on the sliding base, a stand column is connected to the extension end of the driving telescopic column, a lifting seat is slidingly connected to the stand column, the lifting seat is driven to lift by a driving unit, and a grabbing unit for grabbing servers is installed on the lifting seat.

[0007] By adopting the technical scheme, the sliding base can drive the driving telescopic column, the column and the grabbing unit to move, the driving telescopic column is matched with the column, on the one hand, a larger vertical telescopic stroke is provided, so that the grabbing unit can cover all server positions of the multi-layer drawer type immersion liquid cooling cabinet, on the other hand, after the server is grabbed, the telescopic column can be retracted, so as to reduce the height of the whole vehicle, ensure that the operation and maintenance vehicle can smoothly pass through the door hole or the transportation channel in the transfer process, improve the adaptability and passability, and the technical scheme is especially suitable for the computer room environment in which the space is limited and the multi-layer drawer type immersion liquid cooling cabinet is used to load servers.

[0008] Optionally, the length and the width of the sliding base are greater than the sum of the length of the grabbing unit and the width of the driving telescopic column, when the drawer cabinet of the drawer type immersion liquid cooling cabinet is in the drawn-out state, and the sliding base abuts against the bottom of the drawer type immersion liquid cooling cabinet, the grabbing unit is located above the drawer cabinet in the drawn-out state.

[0009] By adopting the technical scheme, the sliding base designed in this way can improve the anti-overturning capability when high-level servers are grabbed, and the sliding base can abut against the bottom of the liquid cooling cabinet, at this time, the grabbing unit can be located above the drawer cabinet in the drawn-out state, accurate butt joint of the position is realized, operation is facilitated, and structural guarantee is provided for subsequent accurate grabbing.

[0010] Optionally, the driving unit comprises a first rack and a first gear, the first rack is vertically arranged on the column, the first gear is rotationally connected to the lifting seat, the first gear is engaged with the first rack, and a driving motor for driving the first gear to rotate is installed on the lifting seat.

[0011] By adopting the technical scheme, the driving motor drives the first gear to rotate, so that the first gear can move along the first rack, and the lifting of the lifting seat is realized.

[0012] Optionally, the top and the bottom of the column are both provided with a limiting block, the top and the bottom of the lifting seat are both provided with an abutting plate, when the limiting block at the top of the column abuts against the abutting plate at the top of the lifting seat, the top end of the first rack is engaged with the first gear, and when the limiting block at the bottom of the column abuts against the abutting plate at the bottom of the lifting seat, the bottom end of the first rack is engaged with the first gear.

[0013] By adopting the technical scheme, it is beneficial to prevent the first gear from being disengaged from the first rack, and physical stroke limiting is realized.

[0014] Optionally, the top and bottom of the column are provided with a first proximity switch, and the lifting seat is provided with a sensing plate, when the sensing plate enters the sensing range of the first proximity switch, the end of the first rack engages with the first gear, and the driving motor stops running.

[0015] By adopting the above technical scheme, the intelligent detection of the lifting limit position is realized, and the automatic stop control is realized.

[0016] Optionally, the sliding base is rotatably connected to a plurality of abutting wheels on one side of the bottom of the drawer-type immersion liquid freezer.

[0017] By adopting the above technical scheme, when the horizontal sliding base aligns the grabbing unit with the server to be grabbed, the sliding friction between the sliding base and the sidewall of the drawer-type immersion liquid freezer is replaced by the rolling friction of the abutting wheels, reducing the scratching and damage of the sliding base and the drawer-type immersion liquid freezer.

[0018] Optionally, the grabbing unit comprises a first mounting plate connected with the lifting seat, and at least one group of connecting plates is slidably connected to the first mounting plate, the number of connecting plates in each group is two, the two connecting plates in the same group move relative to each other through a driving member, and the two connecting plates in the same group are provided with plug-in columns on the mutually facing sides, the length direction of the plug-in column is parallel to the moving direction of the connecting plate, and the moving direction of the connecting plate is the drawer pulling direction of the drawer-type immersion liquid freezer.

[0019] By adopting the above technical scheme, when grabbing the server, the two connecting plates in the same group are in a state of approaching each other and located above the server, when the first mounting plate and the connecting plate descend to the plug-in column opposite to the ear of the server, the driving member drives the two connecting plates in the same group to move away from each other until the plug-in columns of the two connecting plates are inserted into the ears at both ends of the server, realizing the grabbing of the server, and then the first mounting plate can be lifted by the lifting mechanism, and the server can be taken out of the immersion liquid freezer. Since there is no other operating component above the server, sufficient space is provided for the movement of the connecting plate, so that the server grabbing mechanism itself can reliably grab the server in a space-limited environment.

[0020] Optionally, each of the connecting plates is bolted with a moving plate, the moving plate is in sliding connection with the first mounting plate, a first slot is formed on the side of the connecting plate facing the moving plate, the length direction of the first slot is parallel to the moving direction of the connecting plate, the connecting plate is bolted with the moving plate through the first slot, the connecting plate is provided with a second slot, the length direction of the second slot is perpendicular to the moving direction of the connecting plate, and the connecting plate is bolted with the plug-in column through the second slot.

[0021] By adopting the above technical scheme, the relative position of the connecting plate and the moving plate can be adjusted through the design of the first slot, thereby the spacing of the connecting plates in the same group can be adjusted, and the direct position of the plug-in column can be adjusted through the design of the second slot. Therefore, the plug-in column can be smoothly inserted into the ear of the server with different lengths, and the plug-in column can be smoothly inserted into the ear with different positions or different width sizes, thereby improving the versatility and compatibility of the grabbing mechanism.

[0022] Optionally, the number of the connecting plates is a group, the driving member includes a second gear and two second racks, the two second racks are respectively installed on the two moving plates, the two second racks are oppositely arranged, the second gear is rotationally connected to the first mounting plate, the two second racks are in meshing connection with the second gear, and the first mounting plate is provided with an electric screw.

[0023] By adopting the above technical scheme, when the second gear rotates, the two second racks will make linear motion in opposite directions but with equal speed, thereby driving the two moving plates to realize completely symmetrical moving away or moving close. The symmetrical driving structure of the gear and the rack avoids the deflection or asynchronous plugging caused by the bilateral driving error, ensures that the plug-in column can be accurately inserted into the ears of the server at both ends at the same time, and improves the coordination and stability of the grabbing action.

[0024] Optionally, the first mounting plate is connected with the lifting seat through a second mounting plate, the top of the first mounting plate is provided with a plurality of sliding columns, the plurality of sliding columns are collectively arranged through the first mounting plate, a spring is sleeved on the sliding column, one end of the spring is fixed to the top of the second mounting plate, the other end of the spring is fixed to the end of the sliding column, the second mounting plate is connected with the lifting seat, and the top of the second mounting plate is provided with a second proximity switch. When the top of the sliding column enters the sensing range of the second proximity switch, the driving member can be driven. When the top of the sliding column moves out of the sensing range of the second proximity switch, the driving member cannot be driven.

[0025] By adopting the above technical scheme, when the grabbing mechanism is inserted into the server ear and bears the weight of the server, the gravity of the server causes the sliding column to move downward and the spring to compress. At this time, the sliding column is away from the second proximity switch, and the driving piece cannot be driven. When the second proximity switch is damaged, the driving piece also cannot be driven. This avoids the risk of unstable grabbing, server falling off, and other risks caused by misoperation or misdriving, and significantly improves the safety of the entire grabbing process.

[0026] Moreover, the spring can automatically absorb the force deviation of the server caused by slight differences in size or weight during server grabbing, so that the server can be transported in a horizontal state, ensuring the stability of the server during transportation and reducing the risk of server sliding and falling off.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. The sliding base can drive the driving telescopic column, the stand column and the grabbing unit to move. The driving telescopic column and the stand column are designed in cooperation, which on the one hand provides a large vertical telescopic stroke, so that the grabbing unit can cover all server positions of the multi-drawer immersion liquid cooling cabinet; on the other hand, after completing the server grabbing, the telescopic column can be retracted, thereby reducing the overall vehicle height, ensuring that the maintenance vehicle can smoothly pass through the door opening or transportation channel during transfer, improving the adaptability and passability, and being particularly suitable for the computer room environment with limited space and using the multi-drawer immersion liquid cooling cabinet to load servers;

[0029] 2. The widened and lengthened sliding base design can improve the anti-overturning capability during high-level server grabbing, and the sliding base can abut against the bottom of the liquid cooling cabinet. At this time, the grabbing unit can be located directly above the drawer cabinet in the extracted state, realizing accurate docking of the position, facilitating operation, and providing structural guarantee for subsequent accurate grabbing;

[0030] 3. During server grabbing, the two connecting plates in the same group are in a state of approaching each other and are located above the server. When the first mounting plate and the connecting plate descend to the plug-in column opposite the server ear, the driving piece drives the two connecting plates in the same group to move away from each other until the plug-in columns of the two connecting plates are inserted into the server ears at both ends, realizing the grabbing of the server, and then the server can be taken out of the immersion liquid cooling cabinet in cooperation with the lifting seat. Under high machine density, the distance between adjacent servers is small, and there are many cables around the server. However, there are usually no other operating components directly above the server. Therefore, compared with the traditional method of first stretching the clamping jaw and then clamping the server, this clamping structure does not interfere with other cables / servers around the server, and is more suitable for reliably grabbing the server in a limited space environment.

[0031] 4. When the grabbing mechanism is inserted into the server lug and bears the weight of the server, the gravity of the server causes the sliding column to move downward and the spring to compress. At this time, the sliding column is away from the second proximity switch, and the driving piece cannot be driven. When the second proximity switch is damaged, the driving piece also cannot be driven. This avoids the risk of unstable grabbing, server falling off, and other risks caused by misoperation or misdriving, and significantly improves the safety of the entire grabbing process.

[0032] Moreover, the spring can automatically absorb the force deviation of the server caused by slight differences in size or weight when grabbing the server, so that the server can be kept in a horizontal state for transportation, ensuring the stability of the server during transportation and reducing the risk of server sliding off. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0034] Figure 2 is an enlarged schematic diagram of part A in Figure 1

[0035] Figure 3 is a schematic diagram of the structure of the first gear according to the embodiment of the present application.

[0036] Figure 4 is a schematic diagram of the structure of the grabbing unit according to the embodiment of the present application.

[0037] Figure 5 is a schematic diagram of the structure of the moving plate and the connecting plate according to the embodiment of the present application.

[0038] Figure 6 is a schematic diagram of the structure of the moving plate and the connecting plate according to the embodiment of the present application.

[0039] ​Explanation of reference signs: 1, sliding base; 11, drive telescopic column; 12, stand, 13, lifting seat; 14, mounting area; 15, docking area; 16, control cabinet; 17, abutting wheel; 18, roller; 19, track; 2, drive unit; 21, first rack; 22, first gear; 23, speed reducer; 24, drive motor; 25, limit block; 26, abutting plate; 27, first proximity switch; 28, induction plate; 3, grabbing unit; 31, first mounting plate; 311, sliding column; 312, spring; 313, sliding rail; 314, long hole; 315, detection port; 32, second mounting plate; 321, guide sleeve; 322, second proximity switch; 33, moving plate; 331, sliding seat; 34, connecting plate; 341, first slot; 342, second slot; 35, plug-in column; 36, driving piece; 361, second gear; 362, second rack; 363, electric screw; 364, connecting column; 37, limit block; 38, third proximity switch; 39, induction sheet. DETAILED DESCRIPTION

[0040] The following will be described in detail in combination with the accompanying drawings Figures 1-6 The application is further described in detail.

[0041] The application discloses a maintenance vehicle.

[0042] As Figure 1 And Figure 2 The maintenance vehicle comprises a sliding base 1, a drive telescopic column 11 is mounted on the sliding base 1, a stand 12 is connected to an extension end of the drive telescopic column 11, the drive telescopic column 11 is an existing electric telescopic column or a hydraulic drive telescopic column, a lifting seat 13 is slidingly connected to the stand 12, the lifting seat 13 is driven to lift by a drive unit 2, and a grabbing unit 3 for grabbing a server is mounted on the lifting seat 13.

[0043] The length and width of the sliding base 1 are greater than the sum of the length of the grabbing unit 3 and the width of the drive telescopic column 11, the sliding base 1 is divided into a mounting area 14 and a docking area 15, the drive telescopic column 11 is mounted on the mounting area 14, and a control cabinet 16 is further mounted on the mounting area 14, the control cabinet 16 is used for controlling the start and stop of the drive telescopic column 11, the drive unit 2 and the grabbing unit 3, the grabbing unit 3 is located above the docking area 15, a plurality of abutting wheels 17 are rotationally connected to a side of the sliding base 1 away from the mounting area 14, and the abutting wheels 17 are used for abutting with a bottom wall side of a drawer type immersion liquid cooling cabinet. When a drawer cabinet of the drawer type immersion liquid cooling cabinet is in a drawn-out state and the abutting wheels 17 abut with the bottom of the drawer type immersion liquid cooling cabinet, the drawer cabinet is located above the docking area 15, and the grabbing unit 3 is located directly above the drawer cabinet in the drawn-out state.

[0044] The lifting seat 13 is located on one side of the column 12 facing the docking area 15 of the sliding base 1, and the lifting seat 13 is rotatably connected with a roller 18 on the side facing the control cabinet 16 and the side away from the control cabinet 16, and the column 12 is installed with a track 19 on the side facing the control cabinet 16 and the side away from the control cabinet 16, and the roller 18 is slidably arranged on the same side of the track 19, thereby forming a sliding connection between the lifting seat 13 and the column 12.

[0045] As Figure 2 and Figure 3 , the driving unit 2 includes a first rack 21 and a first gear 22, the first rack 21 is vertically arranged on one side of the column 12 facing the docking area 15 of the sliding base 1, and a space is left between the side of the lifting seat 13 opposite to the column 12 for the first rack 21 to pass through, and the first gear 22 is rotatably connected in the lifting seat 13, and the first gear 22 is engaged with the first rack 21. The side of the lifting seat 13 away from the column 12 is installed with a speed reducer 23, the speed reducer 23 is connected with the first gear 22, and the speed reducer 23 is further connected with a driving motor 24.

[0046] The column 12 is installed with a limiting block 25 at the top and the bottom, the first rack 21 is located between the two limiting blocks 25, the top and the bottom of the lifting seat 13 are installed with an abutting plate 26, the top and the bottom of the side of the column 12 away from the control cabinet 16 are installed with a first proximity switch 27, and the lifting seat 13 is installed with a sensing plate 28, and the sensing plate 28 is located in the middle of one side of the lifting seat 13;

[0047] When the limiting block 25 at the top of the column 12 abuts against the abutting plate 26 at the top of the lifting seat 13, the top end of the first rack 21 is engaged with the first gear 22, the sensing plate 28 enters the sensing range of the first proximity switch 27 at the top of the column 12, the first proximity switch 27 accepts the signal and feeds back to the control system, so that the driving motor 24 stops running;

[0048] When the limiting block 25 at the bottom of the column 12 abuts against the abutting plate 26 at the bottom of the lifting seat 13, the bottom end of the first rack 21 is engaged with the first gear 22, the sensing plate 28 enters the sensing range of the first proximity switch 27 at the bottom of the column 12, the first proximity switch 27 accepts the signal and feeds back to the control system, so that the driving motor 24 stops running.

[0049] As Figure 4 , Figure 5 and Figure 6The grabbing unit 3 comprises a first mounting plate 31 and a second mounting plate 32, the second mounting plate 32 is bolted on the side of the lifting seat 13 away from the column 12, the top of the first mounting plate 31 is bolted with four sliding columns 311, the bottom of the second mounting plate 32 is bolted with four guide sleeves 321, the guide sleeves 321 correspond to the sliding columns 311 one by one, the sliding columns 311 pass through the corresponding guide sleeves 321 and pass through the second mounting plate 32. The part of the sliding column 311 passing through the second mounting plate 32 is sleeved with a spring 312, one end of the spring 312 is fixed with the top surface of the second mounting plate 32, the other end of the spring 312 is fixed with the end of the sliding column 311 passing through the second mounting plate 32. The top of the second mounting plate 32 is installed with two second proximity switches 322, and the two second proximity switches 322 are respectively opposite to the top of one of the sliding columns 311.

[0050] The bottom of the first mounting plate 31 is installed with two slide rails 313, and the two slide rails 313 are commonly connected with two moving plates 33, the moving plates 33 are L-shaped, the longitudinal sections of the moving plates 33 are towards the horizontal sections of the other moving plates 33, and the longitudinal section of one moving plate 33 and the horizontal section of the other moving plate 33 are slidably connected on the same slide rail 313 through a sliding block 331.

[0051] The bottom of the two moving plates 33 is bolted with a connecting plate 34, the connecting plate 34 is located at the middle of the horizontal section of the moving plate 33, the connecting plate 34 is an L-shaped plate, four first slot holes 341 are formed in the side of the connecting plate 34 facing the moving plate 33, and the length direction of the first slot hole 341 is parallel to the moving direction of the connecting plate 34. The connecting plate 34 is provided with two second slot holes 342, the length direction of the second slot hole 342 is perpendicular to the moving direction of the connecting plate 34, that is, the length direction of the second slot hole 342 is parallel to the horizontal section of the moving plate 33. The connecting plate 34 is bolted with a plug-in column 35 through the second slot hole 342, the plug-in column 35 is installed on the side of the connecting plate 34 away from each other, the length direction of the plug-in column 35 is parallel to the moving direction of the connecting plate 34, and the plug-in column 35 extends to the moving direction of the two connecting plates 34 away from each other.

[0052] The first mounting plate 31 is provided with a driving member 36 for driving the relative movement of the two connecting plates 34, the driving member 36 comprises a second gear 361 and two second racks 362, the two second racks 362 are respectively installed on the top surface of the longitudinal section of the two moving plates 33, the two second racks 362 are oppositely arranged, the second gear 361 is rotationally connected on the bottom of the first mounting plate 31, the two second racks 362 are all engaged with the second gear 361, the top of the first mounting plate 31 is installed with a motor lead screw 363, the driving end of the motor lead screw 363 is connected with a linkage column 364, the first mounting plate 31 is provided with a long slot hole 314 along the length direction thereof, the linkage column 364 passes through the long slot hole 314 and is bolted with one of the moving plates 33.

[0053] The top of the first mounting plate 31 is bolted with a limit stop 37, which is arranged near the long hole 314 and away from one end of the electric lead screw 363. The top of the first mounting plate 31 is mounted with a third proximity switch 38, and the top of the first mounting plate 31 is provided with a detection hole 315. The moving plate 33 away from the connecting column 364 is mounted with a sensing sheet 39. When the two moving plates 33 are away from each other to a designed distance, the sensing sheet 39 enters the sensing range of the third proximity switch 38, the third proximity switch 38 sends a signal to the system, and the electric lead screw 363 stops driving. In normal use, the third proximity switch 38 serves as a sensing limit, and when the third proximity switch 38 is damaged, the limit stop 37 serves as a mechanical limit to prevent the plug-in columns 35 on both sides from being too far away from each other and damaging the server handle.

[0054] In other embodiments, the connecting plate 34 can also be arranged in multiple groups and mounted on the same side moving plate 33, and the driving member 36 can be a single electric cylinder / gas cylinder for driving. One end of the first mounting plate 31 can also be extended and arranged, and the electric lead screw 363 and the connecting column 364 are both mounted on the bottom of the first mounting plate 31. The third proximity switch 38 can also be mounted on the bottom of the first mounting plate 31, and the connecting column 364 and the sensing sheet 39 can both be mounted on the same moving plate 33.

[0055] The principle of the embodiment of the application is that when the server is grabbed, the sliding base 1 is moved and approached to the multi-layer drawer type immersion liquid cooler, the abutting wheel 17 is abutted with the bottom of the side wall of the drawer type immersion liquid cooler, then the sliding base 1 is transversely moved to make the first mounting plate 31 aligned with the server to be grabbed, the cooperation of the driving telescopic column 11 and the column 12 is used to realize the lifting of the first mounting plate 31, when the second mounting plate 32, the first mounting plate 31 and the connecting plate 34 are lowered to make the plug-in column 35 of the connecting plate 34 opposite to the ear of the server, the electric lead screw 363 is started to drive the two connecting plates 34 of the same group to be away from each other, until the plug-in columns 35 of the two connecting plates 34 are respectively inserted into the ears of the server at both ends, the server is grabbed, then the driving motor 24 is started to make the second mounting plate 32 and the first mounting plate 31 lifted, and then the server can be taken out from the immersion liquid cooler.

[0056] Moreover, when the top of the sliding column 311 enters the sensing range of the second proximity switch 322, the electric screw 363 can be driven. When the plug-in column 35 is inserted into the server ear and bears the weight of the server, the gravity of the server causes the sliding column 311 to move downward and the spring to compress. At this time, the sliding column 311 moves away from the second proximity switch 322, and the electric screw 363 cannot be driven. When the second proximity switch 322 is damaged, the electric screw 363 also cannot be driven. This avoids the risk of unstable grabbing, server falling off, and other risks caused by misoperation or misdriving, and significantly improves the safety of the entire grabbing process. At the same time, when transporting the server, the driven telescopic column 11 can be completely retracted, so that the stand column 12 and the server can smoothly pass through the door opening. The adaptability and passability are improved, and it is particularly suitable for a computer room environment with limited space and using a multi-layer drawer type immersion liquid cooling cabinet to load servers. This clamping structure does not interfere with other cables around the server / server, and is more suitable for reliably grabbing the server in a space-limited environment. Therefore, the operation and maintenance vehicle of the embodiment is more suitable for grabbing servers with multi-layer and high machine density arrangements.

[0057] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, equivalent changes made in the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A service vehicle, characterized by: The utility model provides a kind of server grabbing device, including sliding base (1), driving telescopic column (11) is installed on the sliding base (1), the extending end of the driving telescopic column (11) is connected with stand (12), lifting seat (13) is slidably connected with the stand (12), lifting seat (13) is driven lifting by drive unit (2), grabbing unit (3) for grabbing server is installed on the lifting seat (13).

2. The service vehicle according to claim 1, characterized in that: The length and width of the sliding base (1) are greater than the sum of the length of the grabbing unit (3) and the width of the driving telescopic column (11), when the drawer cabinet of the drawer type immersion liquid cooler is in the state of being pulled out, and the sliding base (1) abuts against the bottom of the drawer type immersion liquid cooler, the grabbing unit (3) is located directly above the drawer cabinet in the state of being pulled out.

3. The service vehicle of claim 1, wherein: The drive unit (2) includes a first rack (21) and a first gear (22), the first rack (21) is vertically arranged on the stand (12), the first gear (22) is rotatably connected to the lifting seat (13), the first gear (22) is engaged with the first rack (21), and a drive motor (24) for driving the first gear (22) to rotate is installed on the lifting seat (13).

4. The service vehicle according to claim 3, characterized in that: The top and bottom of the stand (12) are provided with limit blocks (25), and the top and bottom of the lifting seat (13) are provided with abutting plates (26). When the limit block (25) at the top of the stand (12) abuts against the abutting plate (26) at the top of the lifting seat (13), the top end of the first rack (21) is engaged with the first gear (22). When the limit block (25) at the bottom of the stand (12) abuts against the abutting plate (26) at the bottom of the lifting seat (13), the bottom end of the first rack (21) is engaged with the first gear (22).

5. The service vehicle of claim 4, wherein: The top and bottom of the stand (12) are provided with first proximity switches (27), and a sensing plate (28) is installed on the lifting seat (13). When the sensing plate (28) enters the sensing range of the first proximity switch (27), the end of the first rack (21) is engaged with the first gear (22), and the drive motor (24) stops running.

6. The service vehicle of claim 2, wherein: The side of the sliding base (1) facing the bottom of the drawer type immersion liquid cooler is rotatably connected with a plurality of abutting wheels (17), and the rotation shaft of the abutting wheel (17) is vertically arranged.

7. The service vehicle of claim 1, wherein: The grabbing unit (3) includes a first mounting plate (31), the first mounting plate (31) is connected with the lifting seat (13), at least one group of connecting plates (34) are slidably connected to the first mounting plate (31), the number of each group of connecting plates (34) is two, the two connecting plates (34) in the same group move relative to each other through a driving member (36), and the two connecting plates (34) in the same group are installed with plug-in columns (35) on the side away from each other. The length direction of the plug-in column (35) is parallel to the moving direction of the connecting plate (34), and the moving direction of the connecting plate (34) is the pulling direction of the drawer cabinet of the drawer type immersion liquid cooler.

8. The service vehicle of claim 7, wherein: Each connecting plate (34) is bolted with a moving plate (33), the moving plate (33) is in sliding connection with the first mounting plate (31), the connecting plate (34) is provided with a first slot (341) on the side facing the moving plate (33), the length direction of the first slot (341) is parallel to the moving direction of the connecting plate (34), the connecting plate (34) is bolted with the moving plate (33) through the first slot (341), the connecting plate (34) is provided with a second slot (342), the length direction of the second slot (342) is perpendicular to the moving direction of the connecting plate (34), the connecting plate (34) is bolted with the plug-in column (35) through the second slot (342).

9. The service vehicle of claim 8, wherein: The number of the connecting plates (34) is a group, the driving piece (36) comprises a second gear (361) and two second racks (362), the two second racks (362) are respectively installed on the two moving plates (33), the two second racks (362) are oppositely arranged, the second gear (361) is rotatably connected to the first mounting plate (31), the two second racks (362) are in meshing connection with the second gear (361), the first mounting plate (31) is provided with an electric screw (363), and the electric screw (363) is connected with one of the moving plates (33).

10. The service vehicle of claim 7, wherein: The first mounting plate (31) is connected with the lifting seat (13) through the second mounting plate (32), the top of the first mounting plate (31) is provided with a plurality of sliding columns (311), the plurality of sliding columns (311) are commonly provided through the first mounting plate (31), the sliding column (311) is sleeved with a spring (312), one end of the spring (312) is fixed to the top of the second mounting plate (32), the other end of the spring (312) is fixed to the end of the sliding column (311), the second mounting plate (32) is connected with the lifting seat (13), the top of the second mounting plate (32) is provided with a second proximity switch (322), when the top of the sliding column (311) enters the sensing range of the second proximity switch (322), the driving piece (36) can be driven, when the top of the sliding column (311) moves out of the sensing range of the second proximity switch (322), the driving piece (36) cannot be driven.

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