Cooler reconditioning device

Abstract

The invention provides a cooler servicing device which is applied to a composite cooler of a locomotive, the cooler servicing device comprises a supporting assembly and a clamping assembly, the supporting assembly comprises a base, a supporting body and a plurality of supporting columns, the supporting columns are connected between the base and the supporting body in the vertical direction, and the multiple supporting columns are connected to different positions of the supporting body respectively; the length of the supporting column in the vertical direction is adjustable so as to change the vertical height of the composite cooler supported on the supporting body; the clamping assembly is connected with the supporting body and is configured to be connected with the composite cooler supported on the supporting body in a clamping mode. Through the structural arrangement, an operation space is provided for installation and overhaul of the composite cooler, so that a worker can assemble and overhaul the composite cooler conveniently, and then the assembly and overhaul efficiency of a locomotive is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cooler auxiliary installation, and in particular to a cooler preparation device. Background Art

[0002] At present, electric locomotives are important passenger and freight locomotives in my country and are widely used in my country's railway network. Since the main transformer and traction converter used in the locomotive will generate a lot of heat, if this heat cannot be dissipated in time, it will have a serious impact on the locomotive main transformer and traction converter. At the least, the equipment will overheat and cause the locomotive to fail to work properly. At the worst, the locomotive main transformer and traction converter will burn out and cause serious accidents. Therefore, a composite cooler is needed to cool the heat generated by the main transformer cooling oil and the heat generated by the traction converter coolant using forced air cooling.

[0003] The composite cooler is located inside the vehicle body and includes a flange connection port, which extends to the bottom of the vehicle body and is connected to the external pipeline. When connecting, the external pipeline port and the flange connection port need to be connected through a flange short pipe. In order to avoid leakage of coolant in the pipeline and ensure the structural stability of the connection, the bolts at the connection need to be torque checked.

[0004] However, operators can only perform torque calibration operations at the bottom of the locomotive, but the small working space at the bottom of the locomotive makes it impossible to perform torque calibration operations, thereby reducing the assembly and maintenance efficiency of locomotive components. Summary of the invention

[0005] The present application provides a cooler preparation device, which can improve the assembly and maintenance efficiency of locomotives.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] The present application provides a cooler preparation device, which is applied to a composite cooler of a locomotive. The cooler preparation device includes a support assembly and a clamping assembly. The support assembly includes a base, a support body and a plurality of support columns. The support columns are connected between the base and the support body in a vertical direction, and the plurality of support columns are respectively connected to different positions of the support body. The length of the support column in the vertical direction is adjustable to change the vertical height of the composite cooler supported on the support body.

[0008] The clamping assembly is connected to the supporting body and is configured to be clamped with the composite cooler supported on the supporting body.

[0009] As a possible implementation manner, the top wall of the support body forms a support plane, and the support plane is used to support the composite cooler.

[0010] As a possible embodiment, the support body includes a frame, a top wall of the frame is used to support the composite cooler, at least part of the support columns are connected to the corner area of ​​the frame, and the frame extends to the opposite side edges of the composite cooler in at least one of the length direction and the width direction of the composite cooler.

[0011] As a possible implementation, the support body further includes an extension portion, one end of the extension portion is connected to the frame body, and the other end extends along the length direction of the composite cooler, and the top wall of the frame body and the top wall of the extension portion are jointly used to support the composite cooler.

[0012] As a possible implementation manner, a flange connection portion is provided at the bottom of the composite cooler, the flange connection portion is located outside the frame, and the extension portion is located on the side of the flange connection portion.

[0013] As a possible implementation manner, along the width direction of the composite cooler, there is a distance between the side wall of the protruding portion and the flange connecting portion.

[0014] As a possible implementation manner, the frame has at least one clamping portion on one end surface facing away from the composite cooler, and the clamping portion has a through hole extending in a horizontal direction;

[0015] The snap-on assembly includes a snap-on bracket, which includes a first snap-on section extending in a horizontal direction and a second snap-on section connected to the end of the first snap-on section. The first snap-on section is passed through the through hole and is slidably arranged in a horizontal direction relative to the through hole. The second snap-on section is constructed to be snap-on to the composite cooler.

[0016] As a possible implementation manner, the clamping portion has a first threaded hole on a side facing away from the support body, and the clamping assembly further includes a first fixing member, and the first fixing member is connected to the first threaded hole along the vertical direction;

[0017] When the second clamping section is clamped with the composite cooler, along the vertical direction, the end surface of the first end of the first fixing member abuts against the end surface of the first clamping section.

[0018] As a possible implementation manner, the second clamping section includes a clamping body, the clamping body extends along the horizontal direction, and the clamping body at least extends to an edge of the composite cooler so that the clamping body abuts against an edge of the composite cooler.

[0019] As a possible implementation manner, the clamping assembly includes a second fixing member, the clamping body has a second threaded hole, and the second fixing member is connected to the second threaded hole along the vertical direction.

[0020] The present application provides a cooler preparation device, which is applied to a composite cooler of a locomotive. The cooler preparation device includes a support assembly and a clamping assembly. The support assembly includes a base, a support body and a plurality of support columns. The support columns are connected between the base and the support body in a vertical direction, and the plurality of support columns are respectively connected to different positions of the support body. The length of the support columns in the vertical direction is adjustable to change the vertical height of the composite cooler supported on the support body. The clamping assembly is connected to the support body and is constructed to clamp with the composite cooler supported on the support body. This structural setting provides a working space for the installation and maintenance of the composite cooler, so that the staff can assemble and repair the composite cooler, thereby improving the assembly and maintenance efficiency of the locomotive. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the connection between the cooler preparation device and the composite cooler provided in the embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of a cooler preparation device provided in an embodiment of the present application;

[0024] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A in FIG.

[0025] Description of reference numerals:

[0026] 100- Cooler preparation device;

[0027] 110-support assembly; 111-base; 112-support column;

[0028] 113-support body; 1131-frame; 1132-extending portion; 1133-clamping portion; 1134-through hole;

[0029] 120-clip assembly;

[0030] 121-clamping bracket; 1211-first clamping section; 1212-second clamping section; 1213-clamping body;

[0031] 122-first fixing member; 123-second fixing member;

[0032] 200-compound cooler; 210-flange connection; 211-flange. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] At present, electric locomotives are important passenger and freight locomotives in my country and are widely used in my country's railway network. Since the main transformer and traction converter used in the locomotive will generate a lot of heat, if this heat cannot be dissipated in time, it will have a serious impact on the locomotive main transformer and traction converter. At the least, the equipment will overheat and cause the locomotive to fail to work properly. At the worst, the locomotive main transformer and traction converter will burn out and cause serious accidents. Therefore, a composite cooler is needed to cool the heat generated by the main transformer cooling oil and the heat generated by the traction converter coolant using forced air cooling.

[0035] The composite cooler is located inside the vehicle body and includes a flange connection port, which extends to the bottom of the vehicle body and is connected to the external pipeline. When connecting, the external pipeline port and the flange connection port need to be connected through a flange short pipe. In order to avoid leakage of coolant in the pipeline and ensure the structural stability of the connection, the bolts at the connection need to be torque checked.

[0036] However, operators can only perform torque calibration operations at the bottom of the locomotive, but the small working space at the bottom of the locomotive makes it impossible to perform torque calibration operations, thereby reducing the assembly and maintenance efficiency of locomotive components.

[0037] In order to overcome the defects in the prior art, the present application provides a cooler preparation device, which is applied to the composite cooler of the locomotive. The cooler preparation device includes a support assembly and a clamping assembly. The support assembly includes a base, a support body and a plurality of support columns. The support columns are connected between the base and the support body in the vertical direction, and the plurality of support columns are respectively connected to different positions of the support body; the length of the support column in the vertical direction is adjustable to change the vertical height of the composite cooler supported on the support body; the clamping assembly is connected to the support body and is constructed to clamp with the composite cooler supported on the support body. Through this structural setting, a working space is provided for the installation and maintenance of the composite cooler, so that the staff can assemble and repair the composite cooler, thereby improving the assembly and maintenance efficiency of the locomotive.

[0038] The content of the present invention will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can understand the content of the present invention more clearly and in detail.

[0039] Figure 1 This is a schematic diagram of the connection between the cooler preparation device and the composite cooler provided in the embodiment of the present application. Figure 1 As shown, the present application provides a cooler preparation device 100, which is applied to a composite cooler 200 of a locomotive. The cooler preparation device 100 includes a support assembly 110 and a clamping assembly 120. The support assembly 110 includes a base 111, a support body 113 and a plurality of support columns 112. The support columns 112 are connected between the base 111 and the support body 113 in a vertical direction, and the plurality of support columns 112 are respectively connected to different positions of the support body 113; the length of the support columns 112 in the vertical direction is adjustable to change the vertical height of the composite cooler 200 supported on the support body 113.

[0040] The clamping assembly 120 is connected to the support body 113 and is configured to be clamped to the composite cooler 200 supported on the support body 113 .

[0041] The support assembly 110 in this embodiment includes a base 111, a support body 113 and multiple support columns 112. The base 111, the support body 113 and the multiple support columns 112 are connected in a vertical direction. Specifically, the support column 112 is connected between the base 111 and the support body 113, the base 111 is connected to the external platform, the support body 113 is abutted against the bottom surface of the composite cooler 200, and the support body 113 is used to support the composite cooler 200.

[0042] Among them, the support column 112 is a retractable part. The length change of the support column 112 is used to change the height of the support body 113 and the base 111 in the vertical direction, thereby adjusting the vertical height of the compound cooler 200 relative to the external platform, thereby forming a space for the staff to work, which is convenient for the installation and maintenance of the compound cooler 200.

[0043] It should be noted that the support column 112 in this embodiment can be a hydraulic rod or an electric push rod, etc., as long as the telescopic setting is met and the distance between the support body 113 and the base 111 can be adjusted. In addition, the fixed end of the support column 112 and the base 111 can be connected by bolts to keep the structure between the support column 112 and the base 111 stable.

[0044] In order to maintain the stability of the connection structure between the compound cooler 200 and the support body 113, the snap-in assembly 120 in the cooler preparation device 100 in this embodiment is connected to the support body 113, and the snap-in assembly 120 and the compound cooler 200 remain snap-in, thereby avoiding movement between the compound cooler 200 and the support body 113.

[0045] The cooler preparation device 100 provided in this embodiment supports and fixes the composite cooler 200 through the support component 110 and the clamping component 120, thereby completing the change of the relative height of the composite cooler 200 to provide the staff with a suitable working height and working space, thereby completing the installation and maintenance of the composite cooler 200 outside the vehicle body, thereby improving the overall assembly and maintenance work efficiency of the locomotive.

[0046] Figure 2 A schematic diagram of the structure of a cooler preparation device provided in an embodiment of the present application.

[0047] Combination Figure 1 and Figure 2 The top wall of the support body 113 forms a support plane, and the support plane is used to support the composite cooler 200. It should be noted that the support body 113 in this embodiment can be a plate body, so the top surface of the plate body is the support plane, and the plate surface of the plate body is used to support the composite cooler 200.

[0048] In one embodiment, the support body 113 includes a frame 1131, the top wall of the frame 1131 is used to support the composite cooler 200, at least part of the support columns 112 are connected to the corner area of ​​the frame 1131, and the frame 1131 extends to the opposite side edges of the composite cooler 200 in at least one of the length direction and the width direction of the composite cooler 200.

[0049] like Figure 2 As shown, the support body 113 in this embodiment is a frame 1131 , and the four corners of the frame 1131 are connected with support columns 112 . It can be understood that the number of corresponding support columns 112 is also four, and the top wall of the frame 1131 is in contact with the composite cooler 200 .

[0050] In order to stabilize the structure of the frame 1131 and the composite cooler 200 when they are supported and abutted, the frame edge of the frame 1131 along the length direction of the composite cooler 200 is opposite to the side edge of the composite cooler 200. It is not difficult to understand that the two frame edges of the frame 1131 along the width direction of the composite cooler 200 are opposite to the two side edges of the composite cooler 200.

[0051] Based on the above embodiment, the support body 113 also includes an extension portion 1132, one end of the extension portion 1132 is connected to the frame 1131, and the other end extends along the length direction of the composite cooler 200, and the top wall of the frame 1131 and the top wall of the extension portion 1132 are jointly used to support the composite cooler 200.

[0052] See also Figure 2 When the frame edge of the frame body 1131 along the length direction of the composite cooler 200 is located in the middle of the length direction of the composite cooler 200, in order to make the structure stable when the top wall of the composite cooler 200 and the frame body 1131 support each other.

[0053] The extension portion 1132 in this embodiment extends along the length direction of the composite cooler 200, and the first end of the extension portion 1132 is connected to the frame 1131, and the end surface of the second end of the extension portion 1132 is aligned with the side edge in the length direction of the composite cooler 200. At this time, the top wall of the frame 1131 and the top wall of the extension portion 1132 are used together to support the composite cooler 200.

[0054] A flange connection portion 210 is disposed at the bottom of the composite cooler 200 in this embodiment. The flange connection portion 210 is located outside the frame 1131 , and the extension portion 1132 is located on the side of the flange connection portion 210 .

[0055] The flange connection part 210 of the composite cooler 200 is first connected to the flange short pipe, and the two ends of the flange short pipe are connected to the composite cooler 200 and the external pipeline respectively. After the installation is completed, the bolts at the connection between the flange short pipe and the flange connection part 210 need to be torque checked to prevent the frame edge of the frame body 1131 along the length direction of the composite cooler 200 from affecting the connection between the flange connection part 210 and the flange short pipe and the torque check of the bolts.

[0056] Therefore, a frame edge of the frame body 1131 along the length direction of the composite cooler 200 and close to the flange connection part 210 should have a certain distance from the flange connection part 210 , that is, the flange connection part 210 is located outside the frame body 1131 .

[0057] The extension portion 1132 is located on the side of the flange connection portion 210 , which can also prevent the extension portion 1132 from affecting the connection between the flange connection portion 210 and the flange short pipe and the torque verification of the bolts.

[0058] In some embodiments, along the width direction of the composite cooler 200 , there is a gap between the sidewall of the protruding portion 1132 and the flange connection portion 210 .

[0059] like Figure 1 As shown, the bottom of the composite cooler 200 includes at least two flange connection parts 210, the two flange connection parts 210 are spaced apart along the width extension direction of the composite cooler 200, the extension part 1132 extends along the length direction of the composite cooler 200, and the extension part 1132 is passed through the middle gap between the two flange connection parts 210.

[0060] It is not difficult to understand that in this connection mode, along the width direction of the composite cooler 200, there is a distance between the two opposite side walls of the extension 1132 and the two flange connecting parts 210, thereby ensuring the connection space between the flange short pipe and the flange connecting part 210 and the operating space for bolt torque verification.

[0061] In some embodiments, the end surface of the frame body 1131 facing away from the composite cooler 200 has at least one clamping portion 1133 , and the clamping portion 1133 has a through hole 1134 extending in the horizontal direction.

[0062] The snap-on assembly 120 includes a snap-on bracket 121, which includes a first snap-on section 1211 extending in a horizontal direction and a second snap-on section 1212 connected to the end of the first snap-on section 1211. The first snap-on section 1211 is passed through the through hole 1134 and is slidably arranged in a horizontal direction relative to the through hole 1134. The second snap-on section 1212 is constructed to be snap-on to the composite cooler 200.

[0063] Figure 1 A schematic diagram of the connection between the cooler preparation device and the composite cooler provided in the embodiment of the present application; Figure 2 A schematic diagram of the structure of a cooler preparation device provided in an embodiment of the present application; Figure 3 for Figure 2 A partial enlarged schematic diagram of part A in FIG.

[0064] Specifically, Figure 1-Figure 3As shown, there are four middle clamping parts 1133 in this embodiment, and the four clamping parts 1133 are arranged in groups of two, respectively, on the end surface of one side of the frame 1131 away from the composite cooler 200. It is not difficult to understand that the two groups of clamping parts 1133 are arranged on the two frame edges of the frame 1131 along the width direction of the composite cooler 200, and the two clamping parts 1133 in each group are sequentially connected to the frame edges along the length direction of the composite cooler 200. The clamping part 1133 has a through hole 1134, and the through hole 1134 extends in the horizontal direction. The clamping assembly 120 and the through hole 1134 cooperate with each other and clamp with the composite cooler 200 in the vertical direction to fix the composite cooler 200 on the support body 113.

[0065] The clamping assembly 120 in this embodiment includes a clamping bracket 121 , which passes through the through hole 1134 , and the clamping bracket 121 and the through hole 1134 are slidably arranged, thereby realizing the installation and disassembly operations of the composite cooler 200 and the cooler preparation device 100 .

[0066] Specifically, Figure 3 As shown, the clamping bracket 121 includes a first clamping section 1211 and a second clamping section 1212. The first clamping section 1211 extends in a horizontal direction, passes through the through hole 1134, and the first clamping section 1211 and the through hole 1134 are slidably arranged.

[0067] The second clamping section 1212 extends in the vertical direction, and the second clamping section 1212 is connected to one end of the first clamping section 1211 away from the through hole 1134. When the bottom surface of the composite cooler 200 abuts against the top wall of the support body 113, the first clamping section 1211 slides relative to the through hole 1134 in the horizontal direction, and correspondingly, the second clamping section 1212 is clamped with the edge of the composite cooler 200 in the vertical direction. It can be understood that the edge of the composite cooler 200 is the flange 211, and the second clamping section 1212 can form a hook and the flange 211 to cooperate with each other. It should be noted that the form of the second clamping section 1212 and the flange 211 is not limited to the hook, and other connection structures that can meet the fixed connection between the composite cooler 200 and the support body 113 are all acceptable.

[0068] On the basis of the above embodiment, a first threaded hole is formed on a side of the clamping portion 1133 facing away from the supporting body 113 , and the clamping assembly 120 further includes a first fixing member 122 , which is connected to the first threaded hole along a vertical direction.

[0069] When the second clamping section 1212 is clamped with the composite cooler 200 , along the vertical direction, the end surface of the first end of the first fixing member 122 abuts against the end surface of the first clamping section 1211 .

[0070] like Figure 1As shown, after the cooler preparation device 100 and the composite cooler 200 are connected, in order to make the two more stable during the support connection and prevent the first clamping section 1211 and the through hole 1134 of the clamping bracket 121 from sliding so as to loosen the second clamping section 1212 and the composite cooler 200. In this embodiment, the first fixing member 122 is matched with the first threaded hole of the clamping portion 1133 in the vertical direction, and the end surface of the first end of the first fixing member 122 is in contact with the end surface of the first clamping section 1211 facing the base 111 in the vertical direction.

[0071] It is not difficult to understand that the first fixing member 122 in this embodiment is a threaded member, and specifically, the first fixing member 122 is a bolt.

[0072] In some embodiments, the second clamping section 1212 includes a clamping body 1213 extending in a horizontal direction, and the clamping body 1213 extends at least to an edge of the composite cooler 200 so that the clamping body 1213 and the edge of the composite cooler 200 abut against each other.

[0073] In addition, the clamping assembly 120 includes a second fixing member 123 , the clamping body 1213 has a second threaded hole, and the second fixing member 123 is connected to the second threaded hole along a vertical direction.

[0074] Combination Figure 1 and Figure 3 In this embodiment, the second fixing member 123 is connected to the second threaded hole in the vertical direction. When the composite cooler 200 and the support body 113 are in contact, the end surface of the second fixing member 123 and the end surface of the flange 211 facing away from the top wall of the support body 113 are in contact. The first fixing member 122, the second fixing member 123 and the clamping bracket 121 cooperate to stabilize the clamping structure between the composite cooler 200 and the support body 113.

[0075] In addition, in some other embodiments, the circumferential side wall of the second fixing member 123 abuts against the inner side wall of the flange 211 , and in this case, the clamping structure between the composite cooler 200 and the support body 113 can also be stabilized.

[0076] It should be noted that the second fixing member 123 in this embodiment is a threaded member, and specifically, the second fixing member 123 is a bolt.

[0077] The present application provides a cooler preparation device, which is applied to a composite cooler of a locomotive. The cooler preparation device includes a support assembly and a clamping assembly. The support assembly includes a base, a support body and a plurality of support columns. The support columns are connected between the base and the support body in a vertical direction, and the plurality of support columns are respectively connected to different positions of the support body. The length of the support columns in the vertical direction is adjustable to change the vertical height of the composite cooler supported on the support body. The clamping assembly is connected to the support body and is constructed to clamp with the composite cooler supported on the support body. Through such a structural setting, a working space is provided for the installation and maintenance of the composite cooler, so that the staff can assemble and repair the composite cooler, thereby improving the assembly and maintenance efficiency of the locomotive.

[0078] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0079] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0080] It should be easily understood that “on,” “above,” and “over” in this application should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above something” or “over,” but also may include the meaning of “above something” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0081] In addition, spatially relative terms, such as "below," "below," "below," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90° or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cooler preparation device, applied to a composite cooler of a locomotive, characterized in that: The cooler preparation device includes a support assembly and a clamping assembly, the support assembly includes a base, a support body and a plurality of support columns, the support columns are connected between the base and the support body in a vertical direction, and the plurality of support columns are respectively connected to different positions of the support body; the length of the support column in the vertical direction is adjustable to change the vertical height of the composite cooler supported on the support body; The clamping assembly is connected to the supporting body and is configured to be clamped with the composite cooler supported on the supporting body.

2. The cooler maintenance device according to claim 1, characterized in that: The top wall of the supporting body forms a supporting plane, and the supporting plane is used to support the composite cooler.

3. The cooler maintenance device according to claim 2, characterized in that: The support body includes a frame, a top wall of the frame is used to support the composite cooler, at least part of the support columns are connected to the corner area of ​​the frame, and the frame extends to the opposite side edges of the composite cooler in at least one of the length direction and the width direction of the composite cooler.

4. The cooler maintenance device according to claim 3, characterized in that: The support body also includes a protruding portion, one end of which is connected to the frame body and the other end of which extends along the length direction of the composite cooler, and the top wall of the frame body and the top wall of the protruding portion are used together to support the composite cooler.

5. The cooler maintenance device according to claim 4, characterized in that: A flange connection portion is provided at the bottom of the composite cooler, the flange connection portion is located outside the frame, and the extension portion is located on the side of the flange connection portion.

6. The cooler maintenance device according to claim 5, characterized in that: Along the width direction of the composite cooler, there is a distance between the side wall of the protruding portion and the flange connection portion.

7. The cooler preparation device according to any one of claims 3 to 6, characterized in that: The frame has at least one clamping portion on one end surface facing away from the composite cooler, and the clamping portion has a through hole extending in the horizontal direction; The snap-on assembly includes a snap-on bracket, which includes a first snap-on section extending in a horizontal direction and a second snap-on section connected to the end of the first snap-on section. The first snap-on section is passed through the through hole and is slidably arranged in a horizontal direction relative to the through hole. The second snap-on section is constructed to be snap-on to the composite cooler.

8. The cooler maintenance device according to claim 7, characterized in that: The clamping portion has a first threaded hole on one side facing away from the support body, and the clamping assembly further includes a first fixing member, which is connected to the first threaded hole along the vertical direction; When the second clamping section is clamped with the composite cooler, along the vertical direction, the end surface of the first end of the first fixing member abuts against the end surface of the first clamping section.

9. The cooler maintenance device according to claim 8, characterized in that: The second clamping section comprises a clamping body, the clamping body extends along the horizontal direction, and the clamping body at least extends to the edge of the composite cooler so that the clamping body abuts against the edge of the composite cooler.

10. The cooler maintenance device according to claim 9, characterized in that: The clamping assembly includes a second fixing member, the clamping body has a second threaded hole, and the second fixing member is connected to the second threaded hole along the vertical direction.

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