Disassembling and assembling device and method for cooler

Abstract

The invention relates to the technical field of overhauling of long-axis deep-well pumps, in particular to a cooler dismounting device and method.The cooler dismounting device comprises a clamping piece and a pipe expanding assembly, the clamping piece is provided with a clamping hole, the clamping hole comprises a first section and a second section which are connected, on the section of the clamping piece, the projection of the first section is rectangular, and the projection of the second section is rectangular; the projection of the second section is trapezoidal, the clamping piece comprises a first clamping piece provided with a first half hole and a second clamping piece, the second clamping piece is provided with a second half hole, the first clamping piece and the second clamping piece are detachably or foldably connected so that the first half hole and the second half hole can form a clamping hole, and the pipe expanding assembly comprises a pipe expander and a conical head. The conical head is arranged in the clamping hole in a matched mode and can move in the axial direction of the conical head relative to the pipe expander, the pipe expander is provided with an inclined groove so that the pipe expander can be clamped on the clamping piece in an inclined mode, according to the disassembling and assembling device of the cooler, the disassembling and assembling efficiency of the cooler is improved, heating is not needed, and the disassembling and assembling cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of maintenance of long - shaft deep - well pumps, and particularly to a device and method for disassembling and assembling a cooler. Background Art

[0002] Long - shaft deep - well pumps are installed in both the maintenance sump and the leakage sump of a hydropower station. The long - shaft deep - well pump includes a pump body, a thrust disk, an oil sump, and a cooler. The thrust disk is arranged at the upper end of the pump body to bear the axial gravity and water thrust during the operation of the pump body. The cooler is arranged in the oil sump to cool the thrust disk. Since the cooler is a water - cooled copper - tube cooler, the copper tube passes through the oil sump and is connected to a spherical joint through a union nut. After the cooler operates for a long time, scale is likely to adhere to the connection between the copper tube and the spherical joint, or water seepage may occur, affecting the cooling efficiency of the cooler.

[0003] When disassembling and assembling the cooler, it is necessary to change the shape of the end of the copper tube to remove the union nut from the copper tube. In related technologies, heating is mostly used, but the heating temperature is difficult to control, and the copper tube is easily over - expanded and deformed, reducing the disassembly and assembly efficiency of the cooler and increasing the cost. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related technologies to some extent. For this reason, an embodiment of the present invention provides a device for disassembling and assembling a cooler, which can improve the disassembly and assembly efficiency of the cooler and reduce the disassembly and assembly cost without heating.

[0005] An embodiment of the present invention also provides a method for disassembling and assembling a cooler.

[0006] The device for disassembling and assembling a cooler according to the embodiment of the present invention includes: a clamping member, a clamping hole penetrating the clamping member in its thickness direction is provided on the clamping member. The clamping hole includes a first section and a second section that are sequentially connected in the thickness direction of the clamping member. In the cross - section of the clamping member, the projection of the first section is rectangular, and the projection of the second section is trapezoidal. The clamping member includes a first clamping member and a second clamping member. A first half - hole penetrating the first clamping member in its thickness direction is provided on the first clamping member, and a second half - hole penetrating the second clamping member in its thickness direction is provided on the second clamping member. The first half - hole and the second half - hole are arranged oppositely, and the first clamping member and the second clamping member are detachably or foldably connected so that the first half - hole and the second half - hole form the clamping hole; an expanding tube assembly, the expanding tube assembly includes an expander and a tapered head. The expander is detachably connected to the tapered head. The tapered head is fitted in the clamping hole and is axially movable relative to the expander along the axis of the tapered head. An inclined groove is provided on the side of the expander adjacent to the tapered head, and the wall surface of the inclined groove can abut against the clamping member so that the expander is inclined and clamped on the clamping member.

[0007] The disassembly and assembly device of the cooler according to the embodiment of the present invention facilitates fixing the clamping members on the copper pipe by setting the first clamping member and the second clamping member to be detachably or foldably connected. A first semi-hole is provided on the first clamping member, and a second semi-hole is provided on the second clamping member. The first semi-hole and the second semi-hole combine to form a clamping hole. The end of the copper pipe is narrowed through the first section of the clamping hole. By clamping the pipe expander on the clamping member so that the tapered head fits into the second section and can move in the direction towards the first section, it is convenient to expand the end of the copper pipe, improving the efficiency of the cooler. Moreover, heating is not required during the narrowing and expanding processes, reducing the disassembly and assembly cost.

[0008] In some embodiments, the pipe expander has a first end and a second end, and the first end and the second end are spaced apart in the width direction of the clamping member, and the inclined groove is provided on the inner sides of the first end and the second end.

[0009] In some embodiments, the pipe expanding assembly further includes a transmission member. One end of the transmission member is connected to the pipe expander, and the other end of the transmission member is detachably connected to the tapered head. The transmission member is used to drive the tapered head to move axially in the axial direction of the tapered head.

[0010] In some embodiments, the transmission member is a screw rod. A threaded hole is provided on the pipe expander. One end of the screw rod passes through the threaded hole and is detachably connected to the tapered head. The screw rod can rotate around the thickness direction of the clamping member relative to the pipe expander to drive the tapered head to move along the axial direction of the screw rod.

[0011] In some embodiments, the disassembly and assembly device of the cooler further includes a handle, and the handle is provided at the end of the screw rod away from the tapered head.

[0012] In some embodiments, there are multiple clamping holes, and the multiple clamping holes are spaced apart in the length direction of the clamping member, and the diameters of the multiple clamping holes are different.

[0013] In some embodiments, the disassembly and assembly device of the cooler further includes a connecting member. A first connecting hole is provided on the first clamping member, and a second connecting hole is provided on the second clamping member. The connecting member passes through the first connecting hole and is connected to the second connecting hole.

[0014] In some embodiments, there are two connecting members. One of the connecting members is provided on the side of the first clamping member away from the second clamping member, and the other connecting member is provided on the side of the second clamping member away from the first clamping member.

[0015] In some embodiments, the dimensions of the first clamping member and the second clamping member in the length direction of the clamping member are different.

[0016] The disassembly and assembly method of the cooler according to the embodiment of the present invention includes: when shrinking the end of the copper tube, sleeving the first section of the clamping member on the end of the copper tube, and closing the first clamping member and the second clamping member; when expanding the end of the copper tube, sleeving the second section of the clamping member on the end of the copper tube, closing the first clamping member and the second clamping member, fitting the tapered head into the end of the copper tube and pushing the tapered head to move along the second section towards the first section.

[0017] The disassembly and assembly method of the cooler according to the embodiment of the present invention fixes the clamping member by sleeving the clamping member on the copper tube, selects a matching tapered head, and uniformly applies force through the screw thread to push the tapered head to move downward to expand the copper tube. When shrinking the tube and flaring the mouth, there is no need to heat the copper tube. The operation is simple, convenient and fast, and the sealing performance and connection strength of the end of the copper tube will not be affected after the operation, which is convenient for the disassembly and assembly of the cooler and reduces the disassembly and assembly cost at the same time. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the disassembly and assembly device of the cooler according to the embodiment of the present invention.

[0019] Figure 2 is a schematic diagram of another perspective of the disassembly and assembly device of the cooler according to the embodiment of the present invention.

[0020] Figure 3 is a schematic diagram of the clamping member according to the embodiment of the present invention.

[0021] Reference Signs:

[0022] Clamping member 1, clamping hole 11, first section 111, second section 112, first clamping member 12, first half hole 121, second clamping member 13, second half hole 131,

[0023] Tube expanding assembly 2, tube expander 21, inclined slot 211, first end 212, second end 213, threaded hole 214,

[0024] Tapered head 22, transmission member 23,

[0025] Handle 3, connecting member 4. Detailed Embodiments

[0026] The following details the embodiments of the present invention, and the examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0027] The disassembly and assembly device of the cooler according to the embodiment of the present invention includes a clamping member 1 and a tube expanding assembly 2. The clamping member 1 is provided with a Figure 1The vertical direction (as shown) passes through the clamping hole 11 of the clamping member 1. The clamping hole 11 includes a first section 111 and a second section 112 that are sequentially connected in the thickness direction of the clamping member 1. In the cross-section of the clamping member 1, the projection of the first section 111 is rectangular, and the projection of the second section 112 is trapezoidal. The clamping member 1 includes a first clamping member 12 and a second clamping member 13. The first clamping member 12 is provided with a first semi-hole 121 that penetrates the first clamping member 12 along its thickness direction. The second clamping member 13 is provided with a second semi-hole 131 that penetrates the second clamping member 13 along its thickness direction. The first semi-hole 121 and the second semi-hole 131 are arranged opposite to each other. The first clamping member 12 and the second clamping member 13 are detachably or foldably connected so that the first semi-hole 121 and the second semi-hole 131 form the clamping hole 11. The pipe expanding assembly 2 includes a pipe expander 21 and a tapered head 22. The pipe expander 21 is detachably connected to the tapered head 22. The tapered head 22 is fitted in the clamping hole 11 and is axially movable relative to the pipe expander 21 along the axis of the tapered head 22. One side of the pipe expander 21 adjacent to the tapered head 22 is provided with an inclined groove 211. The wall surface of the inclined groove 211 can abut against the clamping member 1 so that the pipe expander 21 is inclined and clamped on the clamping member 1.

[0028] It should be noted that the thrust disc is arranged at the connection between the upper end of the pump body and the motor. There is a thrust bearing inside the thrust disc, and heat dissipation is required due to the friction during the operation of the thrust bearing. At least part of the thrust disc is located in the oil sump. The cooler is arranged in the oil sump to dissipate heat from the thrust disc and the thrust bearing. The heat is driven by the flowing cooling water in the copper pipe. Both the inlet end and the outlet end of the copper pipe pass through the bottom of the oil sump and are located outside the oil sump. The union nuts are respectively sleeved on the inlet end and the outlet end of the copper pipe. The inner wall surface of the union nut is provided with internal threads, and the outer wall surface of the spherical joint is provided with external threads that cooperate with the internal threads. The inlet end and the outlet end of the copper pipe are respectively expanded to form flared openings. The spherical joint is fitted and abutted against the flared openings and is threadedly connected to the union nut to realize the connection between the spherical joint and the copper pipe.

[0029] When water seeps at the connection between the copper pipe and the spherical joint, on the one hand, it may be caused by the loosening of the union nut, and on the other hand, it may be caused by the deformation or damage of the flared opening of the copper pipe, resulting in the spherical joint being unable to tightly press the copper pipe. At this time, the cooler copper pipe needs to be taken out for inspection and repair to effectively prevent water seepage from occurring again.

[0030] When overhauling the long-shaft deep-well pump, it is often necessary to remove the cooler for separate cleaning and maintenance. During the disassembly process, the flared opening of the cooler copper pipe needs to be reduced or cut to remove the union nut. During the installation process, the end of the cooler copper pipe needs to be expanded to form a flared opening, and then connected and fixed to the spherical joint of the supply and drainage hose.

[0031] Flaring the cut copper pipe will cause the length of the inlet and outlet water pipes of the copper pipe to become shorter. When reinstalling, the length of the copper pipe may not meet the installation process requirements. Therefore, usually, a heating method is adopted to reduce the flare. When installing, a heating method is used to expand the copper pipe to form a flare. The copper pipe itself has a relatively soft texture and is prone to cracking and damage during the tube expanding process, or the inner diameter of the enlarged part of the copper pipe may be uneven. Moreover, the tube expanding parameters of copper pipes of different materials may be different, resulting in more difficult control of the heating temperature, which in turn affects the disassembly and assembly efficiency of the cooler.

[0032] Specifically, as Figures 1 - 3 shown, the first clamping member 12 and the second clamping member 13 are arranged at intervals in the left-right direction, and the first clamping member 12 and the second clamping member 13 are detachably connected or foldably connected. When the first clamping member 12 and the second clamping member 13 are detachably connected, the first clamping member 12 is located on the left side of the second clamping member 13. A first half-hole 121 is provided at the right end of the first clamping member 12, and a second half-hole 131 is provided at the left end of the second clamping member 13. The first half-hole 121 and the second half-hole 131 combine to form a clamping hole 11. The clamping hole 11 includes a first section 111 and a second section 112 that are connected in sequence in the up-down direction, and the lower end of the second section 112 is connected to the upper end of the first section 111. In a cross-section orthogonal to the front-back direction, the outer contour of the first section 111 is rectangular, and the outer contour of the second section 112 is trapezoidal, and the short side of the trapezoid is arranged adjacent to the first section 111. In other words, the cross-sectional area of the second section 112 gradually increases from bottom to top, so that the second section 112 forms a conical surface, which is convenient for flaring the copper pipe.

[0033] An inclined groove 211 is provided on the inner wall surface of the tube expander 21, which is convenient for obliquely clamping the tube expander 21 relative to the horizontal direction on the clamping member 1 to fix the tube expander 21. By providing a tapered head 22 on the tube expander 21, by moving the tapered head 22 up or down, the tapered head 22 is fitted into the second section 112.

[0034] For the cooler disassembly and assembly device according to the embodiment of the present invention, by setting the first clamping member 12 and the second clamping member 13 to be detachably or foldably connected, it is convenient to fix the clamping member 1 on the copper pipe. A first half-hole 121 is provided on the first clamping member 12, and a second half-hole 131 is provided on the second clamping member 13. The first half-hole 121 and the second half-hole 131 combine to form a clamping hole 11. The end of the copper pipe is reduced through the first section 111 of the clamping hole 11. By clamping the tube expander 21 on the clamping member 1 so that the tapered head 22 is fitted into the second section 112 and can move in the direction towards the first section 111, it is convenient to expand the end of the copper pipe, improving the efficiency of the cooler. Moreover, heating is not required during the reduction and expansion processes, reducing the disassembly and assembly cost.

[0035] In some embodiments, the tube expander 21 has a first end 212 and a second end 213, the first end 212 and the second end 213 are arranged at intervals in the width direction of the clamping member 1, and the inclined groove 211 is provided inside the first end 212 and the second end 213.

[0036] Specifically, as Figures 1 - 2 shown, the tube expander 21 is U-shaped, the first end 212 of the tube expander 21 is located on the left side of the clamping member 1, the second end 213 of the tube expander 21 is located on the right side of the clamping member 1, there are two inclined grooves 211, the first inclined groove 211 is provided on the right side of the first end 212, the second inclined groove 211 is provided on the left side of the second end 213. Through the arrangement of the two inclined grooves 211, it is convenient for the tube expander 21 to be clamped on the left side or the right side of the clamping member 1 to adapt to different installation environments.

[0037] Compared with the related art in which fasteners are required to fix the tube expander 21 to the clamping member 1, in this embodiment, by providing the inclined groove 211, the tube expander 21 is inclined and clamped on the clamping member 1, reducing the installation time of the tube expander 21 and the clamping member 1, and further improving the disassembly efficiency of the cooler.

[0038] In some embodiments, the tube expanding assembly 2 further includes a transmission member 23. One end of the transmission member 23 is connected to the tube expander 21, and the other end of the transmission member 23 is detachably connected to the tapered head 22. The transmission member 23 is used to drive the tapered head 22 to move axially.

[0039] Specifically, as Figures 1 - 2 shown, the upper end of the transmission member 23 is connected to the tube expander 21, and the lower end of the transmission member 23 is detachably connected to the tapered head 22, which is convenient for replacing the tapered heads 22 with different diameters to adapt to copper tubes with different hole diameters. By driving the tapered head 22 to move in the up and down direction through the transmission member 23, when the tapered head 22 moves downward, it is convenient for the tapered head 22 to expand the end of the copper tube to form an expanded opening, and then it is convenient for the end of the copper tube to be connected to the spherical joint.

[0040] For example, the transmission member 23 can be set as a push rod, a telescopic rod, or a screw rod.

[0041] In some embodiments, the transmission member 23 is a screw rod, the tube expander 21 is provided with a threaded hole 214, one end of the screw rod passes through the threaded hole 214 and is detachably connected to the tapered head 22, and the screw rod can rotate relative to the tube expander 21 around the thickness direction of the clamping member 1 to drive the tapered head 22 to move along the axial direction of the screw rod.

[0042] Specifically, as Figures 1 - 2As shown, the lower end of the screw passes through the threaded hole 214 and is threadedly connected to the pipe expander 21. The lower end of the screw is detachably connected to the tapered head 22. By rotating the screw clockwise around the vertical direction, the screw moves downward relative to the pipe expander 21, driving the tapered head 22 to move downward. By rotating the screw counterclockwise around the vertical direction, the screw moves upward relative to the pipe expander 21, driving the tapered head 22 to move upward.

[0043] When expanding the end of the copper pipe, first insert the end of the copper pipe into the second section 112 from bottom to top. By rotating the screw, the tapered head 22 is fitted inside the end of the copper pipe, and then continue to rotate the screw to drive the tapered head 22 to move downward to squeeze the end of the copper pipe. The screw uses the thread to apply force evenly in a spiral manner to push the tapered head 22 downward to expand the end of the copper pipe, which can provide a uniform acting force. Moreover, the inner wall surface of the second section 112 can also shape the outer wall surface of the end of the copper pipe, avoiding the phenomenon of the copper pipe cracking and improving the flaring performance of the copper pipe.

[0044] In some embodiments, as Figures 1 - 2 shown, the disassembly and assembly device of the cooler further includes a handle 3, and the handle 3 is provided at one end of the screw away from the tapered head 22. The handle 3 is provided at the upper end of the screw and located above the pipe expander 21. Through the arrangement of the handle 3, it is convenient to rotate the screw.

[0045] In some embodiments, there are multiple clamping holes 11, and the multiple clamping holes 11 are arranged at intervals in the length direction of the clamping member 1 (such as Figure 1 the front-rear direction shown), and the diameters of the multiple clamping holes 11 are different.

[0046] Specifically, as Figures 1 - 3 shown, the multiple clamping holes 11 are arranged at intervals in the front-rear direction, the diameters and tapers of the multiple clamping holes 11 are different. The second section 112 of the clamping hole 11 is a conical surface, and the first section 111 of the clamping hole 11 is a cylindrical surface. Through the arrangement of the multiple clamping holes 11 with different diameters and different tapers, it is applicable to copper pipes with different diameters. Also, when expanding the end of the copper pipe, it can be expanded from a small-diameter clamping hole 11 first and then expanded through a large-diameter one. Correspondingly, different-diameter tapered heads 22 are replaced for cooperation to achieve slow expansion of the end of the copper pipe, avoiding the phenomenon of the end of the copper pipe bursting and deforming during one-time flaring of the end of the copper pipe. By the way of slow expansion, the disassembly and assembly efficiency is improved.

[0047] In some embodiments, the disassembly and assembly device of the cooler further includes a connecting member 4. The first clamping member 12 is provided with a first connecting hole, and the second clamping member 13 is provided with a second connecting hole. The connecting member 4 passes through the first connecting hole and is connected to the second connecting hole.

[0048] Specifically, as Figures 1 - 3As shown, the first clamping member 12 is provided with a first connection hole extending in the left-right direction, and the second clamping member 13 is provided with a second connection hole extending in the left-right direction. The first connection hole and the second connection hole are opposite to each other so that the connecting member 4 can pass through the first connection hole and the second connection hole in sequence, realizing the detachable connection between the first clamping member 12 and the second clamping member 13, facilitating the fixing of the clamping member 1 on the copper pipe, preventing the problem of the movement of the clamping member 1 during the tube expansion of the copper pipe, saving the tube expansion time and reducing the tube expansion difficulty.

[0049] In some embodiments, there are two connecting members 4. One connecting member 4 is arranged on the side of the first clamping member 12 away from the second clamping member 13, and the other connecting member 4 is arranged on the side of the second clamping member 13 away from the first clamping member 12.

[0050] Specifically, as Figures 1 - 3 shown, the two connecting members 4 are arranged at intervals in the front-back direction. One connecting member 4 is located at the front end of the other connecting member 4, and one clamping member 1 is located at the left front end of the clamping member 1, and the other clamping member 1 is located at the right rear end of the clamping member 1. Through the arrangement of the two connecting members 4, it is convenient to fix the front end and the rear end of the clamping member 1 simultaneously, improving the stability of the clamping member 1 clamped on the pipe.

[0051] In some embodiments, the dimensions of the first clamping member 12 and the second clamping member 13 in the length direction of the clamping member 1 are different.

[0052] Specifically, as Figures 1 - 3 shown, the dimension of the first clamping member 12 in the front-back direction can be set to be larger than the dimension of the second clamping member 13 in the front-back direction, or the dimension of the first clamping member 12 in the front-back direction can be set to be smaller than the dimension of the second clamping member 13 in the front-back direction, facilitating the connection and separation of the first clamping member 12 and the second clamping member 13.

[0053] The disassembly and assembly method of the cooler according to the embodiment of the present invention includes necking the end of the copper pipe and expanding the end of the copper pipe. When necking the end of the copper pipe, the first section of the clamping member is sleeved on the end of the copper pipe, and the first clamping member and the second clamping member are closed. Since the first section provides a uniform extrusion force to the end of the copper pipe, the flared part at the end of the copper pipe is uniformly extruded and reduced.

[0054] When expanding the end of the copper pipe, the second section of the clamping member is sleeved on the end of the copper pipe, leaving a flaring length at the end of the copper pipe. The first clamping member and the second clamping member are closed to fix the clamping member on the copper pipe. The tapered head is fitted into the end of the copper pipe, and a downward linear propulsion force is provided by the rotation of the screw to push the tapered head to move in the direction from the second section towards the first section, that is, to move from top to bottom, realizing the expansion of the end of the copper pipe, and shaping the outer shape of the end of the copper pipe through the inner wall surface of the second section, improving the tube expansion efficiency and reliability.

[0055] The disassembly and assembly method of the cooler according to the embodiment of the present invention fixes the clamping piece by sleeving the clamping piece on the copper pipe, selects a matching conical head, and evenly applies force to advance the conical head downward through the screw thread to expand the copper pipe. When shrinking the pipe and flaring the mouth, there is no need to heat the copper pipe. The operation is simple, convenient and fast, and it will not affect the sealing performance and connection strength of the end of the copper pipe after the operation. It is convenient for the disassembly and assembly of the cooler and reduces the disassembly and assembly cost, thereby realizing the high-efficiency maintenance of the long-shaft deep-well pump.

[0056] Furthermore, in this embodiment, both the pipe shrinking and the flaring are non-destructive, without the need for additional energy assistance. The operation process is simple and intuitive, with low requirements for the technical level of the staff, reducing the disassembly and assembly difficulty. Moreover, multiple conical heads of different sizes can meet the needs of expanding the joints of copper pipe coolers of various models, improving the adaptability range.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0058] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present invention, unless otherwise explicitly specified or limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirectly in contact via an intermediate medium. Further, a first feature being "above", "over" and "on top of" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher level of height than the second feature. A first feature being "under", "below" and "beneath" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level of height than the second feature.

[0061] In the present invention, the terms "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0062] It should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A disassembly and assembly device for a cooler, characterized in that Comprising: A clamping member, on which there is a clamping hole penetrating the clamping member along its thickness direction. The clamping hole includes a first section and a second section connected in sequence along the thickness direction of the clamping member. In the cross-section of the clamping member, the projection of the first section is rectangular, and the projection of the second section is trapezoidal. The clamping member includes a first clamping member and a second clamping member. There is a first semi-hole penetrating the first clamping member along its thickness direction on the first clamping member, and a second semi-hole penetrating the second clamping member along its thickness direction on the second clamping member. The first semi-hole and the second semi-hole are arranged oppositely. The first clamping member and the second clamping member are detachably or foldably connected so that the first semi-hole and the second semi-hole form the clamping hole; A pipe expanding assembly, which includes an expander and a tapered head. The expander is detachably connected to the tapered head. The tapered head is fitted in the clamping hole and is axially movable relative to the expander along the axis of the tapered head. There is an inclined groove on one side of the expander adjacent to the tapered head, and the wall surface of the inclined groove can abut against the clamping member so that the expander is inclined and clamped on the clamping member.

2. The disassembling and assembling device for a cooler according to claim 1, wherein, The expander has a first end and a second end, and the first end and the second end are spaced apart in the width direction of the clamping member. The inclined groove is provided inside the first end and the second end.

3. The disassembling and assembling device of the cooler according to claim 2, wherein, The pipe expanding assembly further includes a transmission member. One end of the transmission member is connected to the expander, and the other end of the transmission member is detachably connected to the tapered head. The transmission member is used to drive the tapered head to move axially.

4. The disassembling and assembling device of the cooler according to claim 3, characterized in that, The transmission member is a screw. There is a threaded hole on the expander. One end of the screw passes through the threaded hole and is detachably connected to the tapered head. The screw can rotate around the thickness direction of the clamping member relative to the expander to drive the tapered head to move axially along the screw.

5. The disassembly and assembly device of the cooler according to claim 4, characterized in that, It further includes a handle, and the handle is provided at the end of the screw away from the tapered head.

6. The disassembly and assembly device of the cooler according to claim 1, characterized in that, There are multiple clamping holes, and the multiple clamping holes are spaced apart in the length direction of the clamping member, and the diameters of the multiple clamping holes are different.

7. The disassembly and assembly device of the cooler according to claim 6, characterized in that, It further includes a connecting member. There is a first connecting hole on the first clamping member, and a second connecting hole on the second clamping member. The connecting member passes through the first connecting hole and is connected to the second connecting hole.

8. The disassembling and assembling device of the cooler according to claim 7, characterized in that, There are two connecting members. One of the connecting members is provided on the side of the first clamping member away from the second clamping member, and the other connecting member is provided on the side of the second clamping member away from the first clamping member.

9. The disassembling and assembling device for a cooler according to any one of claims 1-8, characterized in that, The dimensions of the first clamping member and the second clamping member in the length direction of the clamping member are different.

10. A method for disassembling and assembling a cooler, characterized in that, Comprising: When reducing the diameter of the end of a copper pipe, sleeved the first section of the clamping member on the end of the copper pipe, and close the first clamping member and the second clamping member; When expanding the diameter of the end of a copper pipe, sleeved the second section of the clamping member on the end of the copper pipe, close the first clamping member and the second clamping member, fit the tapered head into the end of the copper pipe and push the tapered head to move along the second section towards the first section.

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