Hidden clothes airing machine facilitating maintenance

Abstract

The application discloses a hidden clothes airing machine convenient to overhaul, which comprises a main machine, a panel assembly with a groove and an airing rod; the panel assembly is fixed with the main machine through first fasteners; the airing rod is lifted into the groove of the panel assembly under the tight state of a steel wire rope; the airing rod comprises a tube body at the lower side and a hanging plate at the upper side, and a plurality of hanging holes are distributed along the length direction of the hanging plate; the lower end of the steel wire rope is connected with a first connecting element; a second connecting element is arranged in the tube body; a second fastener sequentially penetrates through the first connecting element and the second connecting element from the lower side to the upper side, and fixes the first connecting element and the second connecting element; the tube body comprises a bottom wall, the bottom wall is provided with an overhaul opening, and the second fastener is located at the position directly above the overhaul opening; the second fastener can be detached through the overhaul opening, so that the first connecting element, the second connecting element and the airing rod are disassembled in the longitudinal direction, and then the lifting airing rod can be removed; then the first fastener is removed, the main machine is exposed, and the main machine embedded in the wall or the surface can be overhauled or maintained.

Description

TECHNICAL FIELD

[0001] The present application relates to a hidden clothes drying machine, in particular to a hidden clothes drying machine convenient for maintenance. BACKGROUND

[0002] There is a hidden clothes drying machine, which comprises a main machine, a panel assembly provided with a U-shaped groove and a liftable drying rod. The main machine and the panel assembly are hiddenly installed inside the ceiling, and the drying rod can be stored in the U-shaped groove of the panel assembly.

[0003] As disclosed in CN113265857A, a hidden single-rod clothes drying machine comprises a casing, a motor assembly arranged in the casing, and a fixed pulley arranged on both sides of the casing. A recess for accommodating a drying rod is formed in the bottom of a hidden box, and a through hole for passing a steel wire rope is formed in the top of the hidden box. The steel wire rope is fixedly connected to the drying rod in sequence through the fixed pulley and the hidden box, and the drying rod is arranged directly below the hidden box.

[0004] The maintenance and disassembly process of the hidden clothes drying machine is as follows: first, the drying rod is moved away from the U-shaped groove of the panel assembly, the fasteners at the bottom of the U-shaped groove are removed, and then the panel assembly can be separated from the main machine.

[0005] When the drying rod is stored in the U-shaped groove of the panel assembly, if the steel wire rope is in a stuck and tightly held state when it is retracted, it is difficult for maintenance personnel to take out the drying rod from the U-shaped groove of the panel assembly, and thus the panel assembly and the main machine components cannot be further disassembled. SUMMARY

[0006] In view of the problem that the drying rod cannot be taken out due to the stuck steel wire rope, leading to difficulty in maintenance of the clothes drying machine, the present application provides a hidden clothes drying machine convenient for maintenance. By setting a maintenance opening at the bottom of the drying rod and removing the connection between the steel wire rope and the drying rod, the drying rod can be separated from the recess of the panel assembly, and thus the panel assembly and the main machine can be disassembled and maintained.

[0007] The technical solution adopted by the present application to solve the above technical problems is as follows: a hidden clothes drying machine convenient for maintenance, characterized in that it comprises a main machine provided with a steel wire rope driver, a panel assembly provided with a recess, and a drying rod driven to rise and fall by the steel wire rope; the panel assembly is fixed to the main machine by at least one first fastener;

[0008] When the steel wire rope is in a retracted state, the drying rod rises into the recess of the panel assembly;

[0009] The drying rod comprises a pipe body at the lower side and a hanging plate at the upper side, and a plurality of hanging holes are distributed along the length direction of the hanging plate;

[0010] The lower end of the steel wire rope is connected to a first connecting element, and a second connecting element is arranged in the pipe body;

[0011] The detachable at least one second fastener is sequentially threaded through the first connecting element and the second connecting element from bottom to top, and connects and fixes the two;

[0012] The pipe body comprises a bottom wall, and the bottom wall is provided with an access hole, and the second fastener is located directly above the access hole.

[0013] The first connecting element comprises a connecting frame capable of clamping the free end of the steel wire rope and a fixed bottom plate located at the lower part of the connecting frame, and the fixed bottom plate is provided with at least one first threaded hole;

[0014] The second connecting element is a positioning block matched with the inner wall of the pipe body, and the positioning block is provided with a second threaded hole corresponding to the first threaded hole;

[0015] The second fastener is a second screw, and the second screw is sequentially threaded through the second threaded hole of the fixed bottom plate, the upper inner wall of the pipe body and the first threaded hole of the positioning block from bottom to top, and the three are fixed.

[0016] The connecting frame comprises a first supporting wall and a second supporting wall located on the two sides of the hanging plate respectively, the lower side of the first supporting wall is provided with a first fixed bottom plate in a bent manner, and the lower side of the second supporting wall is provided with a second fixed bottom plate in a bent manner;

[0017] The first fixed bottom plate is provided with a first threaded hole, and the second fixed bottom plate is provided with a first threaded hole. An intermediate passage capable of inserting the hanging plate is formed between the first supporting wall and the second supporting wall;

[0018] A limiting connecting hole is formed in the second supporting wall, and the connecting end of the steel wire rope is movably inserted into the limiting connecting hole.

[0019] The first supporting wall is provided with a first hook portion extending towards the second supporting wall on one side, and the second supporting wall is provided with a second hook portion extending towards the first supporting wall on the other side; the first hook portion and the second hook portion are arranged in a staggered manner, and are respectively hooked on the two sides of the hanging plate, so that the connecting frame is more stably arranged on the hanging plate.

[0020] The hanging plate is provided with a decorative cover for closing the first connecting element;

[0021] The decorative cover comprises a first cover portion and a second cover portion; the inner side of the first cover portion is provided with at least one connecting column, and the second cover portion is provided with a connecting hole; the third screw is screwed on the connecting column through the connecting hole;

[0022] The hanging plate is provided with a through hole for the connecting column.

[0023] The further preferred technical scheme of the present application is that the decorative cover is internally provided with an inner lining assembly, which wraps the steel wire rope.

[0024] The further preferred technical scheme of the present application is that the panel assembly comprises a panel and a receiving frame with the groove, and the receiving frame comprises two side walls and a top wall.

[0025] The main machine comprises a bottom plate.

[0026] The first fastener connects the bottom plate with the top wall, and the first fastener is a first screw, and the bottom plate is provided with a threaded hole, and the top wall is provided with a through hole.

[0027] The first screw is screwed into the threaded hole of the bottom plate through the through hole of the top wall.

[0028] The further preferred technical scheme of the present application is that the access hole is provided with a detachable access cover.

[0029] The further preferred technical scheme of the present application is that the first and second side walls are inwardly inclined by a distance, so that the upper section of the middle channel is in a V-shaped structure.

[0030] The first and second fixed bottom plates are symmetrically extended outwardly by a distance, and the distance between the inner end faces of the first and second fixed bottom plates is equivalent to the thickness of the hanging plate.

[0031] The further preferred technical scheme of the present application is that the cross section of the pipe body is in a trapezoidal shape, comprising two symmetrically distributed and outwardly inclined limiting walls at the upper end.

[0032] The positioning block comprises two symmetrically distributed and inclined limiting faces, and the limiting wall and the inclined limiting face are fitted to limit the left and right movement of the positioning block in the inner cavity of the pipe body.

[0033] Compared with the prior art, the present application has the following advantages: 1. The bottom wall of the pipe body of the drying rod is provided with an access hole, and the second fastener can be detached through the access hole, so that the first and second connecting elements and the drying rod can be disassembled in the longitudinal direction, and then the liftable drying rod can be removed. Then, the first fastener is removed, and the main machine is exposed, so that the main machine embedded in the wall or the surface can be maintained or repaired.

[0034] 2. The access hole is arranged on the bottom wall of the pipe body, which is relatively concealed and does not affect the overall appearance of the clothes drying machine, which conforms to the modern home aesthetic concept of "embedded and concealed".

[0035] 3. The technical solution formed based on the first and second connecting elements and the access hole not only realizes the liftable connection between the drying rod and the main machine, but also the existence of the liftable function does not contradict the demand for quick disassembly for facilitating maintenance, that is, the two technical demands can be realized by one core technical means, and the two technical demands are usually contradictory under the research and development logic of the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0036] The application will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments and therefore should not be regarded as limiting the scope of the application. In addition, unless specifically indicated, the drawings only schematically represent the composition or structure of the described objects and can include exaggerated display, and the drawings are not necessarily drawn to scale.

[0037] Figure 1 is a schematic view of the unfolded state of the hidden drying machine;

[0038] Figure 2 is a schematic view of the fixing part of the drying rod and the steel wire; Figure 1 ;

[0039] Figure 3 is a schematic view of the fixing part of the drying rod and the steel wire; Figure 2 ;

[0040] Figure 4 is a schematic view of the storage state of the hidden drying machine; Figure 1 ;

[0041] Figure 5 is a partial structure enlarged view of A in FIG. 4; Figure 4 ;

[0042] Figure 6 is a schematic view of the storage state of the hidden drying machine; Figure 2 ;

[0043] Figure 7 is a partial structure enlarged view of B in FIG. 5; Figure 6 ;

[0044] Figure 8 is a schematic view of the connection state of the drying rod and the steel wire;

[0045] Figure 9 is a partial structure enlarged view of C in FIG. 6; Figure 8 ;

[0046] Figure 10 is a disassembled view of the first and second connecting elements;

[0047] Figure 11Figure 6 is a side view of the assembled drying rod and two connecting elements;

[0048] Figure 12 Figure 7 is a schematic diagram of the overall structure of the first connecting element;

[0049] Figure 13 Figure 8 is a schematic diagram of the overall structure of the second connecting element;

[0050] Figure 14 Figure 9 is a schematic diagram of the side structure of the hidden drying machine. DETAILED DESCRIPTION

[0051] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is merely illustrative, exemplary, and should not be construed as limiting the scope of protection of the present application.

[0052] It should be noted that similar reference numerals represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it can no longer be further defined and explained in subsequent drawings.

[0053] As shown in Figures 1, 2, 3, 4, 5, 6, 7, 8, and 9, the hidden drying machine 100 for easy maintenance includes a main machine 10 with a steel wire rope driver 30, a panel assembly 20 with a groove 22, and a drying rod 40 driven by the steel wire rope s to rise and fall. Figure 1 , Figure 4 and Figure 6 The hidden drying machine 100 for easy maintenance includes a main machine 10 with a steel wire rope driver 30, a panel assembly 20 with a groove 22, and a drying rod 40 driven by the steel wire rope s to rise and fall.

[0054] The main machine 10 is embeddedly installed in the recess formed by the ceiling or the suspended panel. The panel assembly 20 is connected and fixed with the main machine 10 by the first fastener T1.

[0055] When the steel wire rope s is in the tightened state, the drying rod 40 rises and is embedded into the groove 22 of the panel assembly 20. The drying rod 40 includes a tube body 41 at the lower side and a hanging plate 42 at the upper side, and a plurality of hanging holes 43 are distributed along the length direction of the hanging plate 42. The hanging holes 43 are wave-shaped hanging holes, which improve the hanging stability and increase the drying hanging area.

[0056] Further, the lower end of the steel wire rope s is connected with the first connecting element D1, and the tube body 41 is provided with the second connecting element D2. The detachable second fastener T2 is sequentially passed through the first connecting element D1 and the second connecting element D2 from bottom to top, and connects and fixes the two connecting elements.

[0057] As shown in Figures 1, 2, 3, 4, 5, 6, 7, 8, and 9, the hidden drying machine 100 for easy maintenance includes a main machine 10 with a steel wire rope driver 30, a panel assembly 20 with a groove 22, and a drying rod 40 driven by the steel wire rope s to rise and fall. Figure 9 and Figure 10 The tube body 41 includes a bottom wall 01, and the bottom wall 01 is provided with an access opening 02. The second fastener is located directly above the access opening 02.

[0058] The advantage of the present application is that the bottom wall 01 of the pipe body 41 of the airing rod 40 is provided with an access hole 02, and the second fastener T2 can be removed through the access hole 02, so that the first and second connecting elements and the airing rod 40 can be disassembled in the longitudinal direction, and then the liftable airing rod 40 can be removed; and then the first fastener T1 is removed, so that the main machine 10 is exposed, thereby facilitating the maintenance or maintenance of the main machine 10 embedded in the wall or surface.

[0059] Secondly, the access hole 02 is provided on the bottom wall 01 of the pipe body 41, which is relatively concealed and does not affect the overall appearance of the clothes drying machine, thereby meeting the modern home aesthetic concept of "embedded and concealed".

[0060] Moreover, based on the technical scheme formed by the first and second connecting elements and the access hole 02, not only the liftable connection of the airing rod 40 and the main machine 10 is realized, but also the existence of the liftable function does not contradict the demand for quick disassembly for maintenance. That is, the two technical demands in two directions can be realized by one core technical means, and these two technical demands are usually contradictory under the research and development logic of the prior art.

[0061] More specifically, as shown in Figure 9 , Figure 10 and Figure 11 , the first connecting element D1 includes a connecting frame d1 capable of clamping the free end of the steel wire rope s and a fixed bottom plate d2 located at the lower part of the connecting frame d1, and the fixed bottom plate d2 is provided with a first threaded hole d3.

[0062] The second connecting element D2 is a positioning block d matched with the inner wall 47 of the pipe body 41; as shown in Figure 9 , Figure 10 , Figure 12 , the positioning block d is provided with a second threaded hole d4 corresponding to the first threaded hole d3.

[0063] The second fastener T2 is a second screw t2, which sequentially passes through the second threaded hole d4 of the fixed bottom plate d2, the upper inner wall of the pipe body 41 and the first threaded hole d3 of the positioning block d from bottom to top, and fixes the three.

[0064] More specifically, as shown in Figure 11 and Figure 12 , the connecting frame d1 includes a first supporting wall f1 and a second supporting wall f2 located on both sides of the hanging plate 42, respectively, and the lower side of the first supporting wall f1 is provided with a first fixed bottom plate e1, and the lower side of the second supporting wall f2 is provided with a second fixed bottom plate e2.

[0065] Among them, the first fixed bottom plate e1 is provided with a first threaded hole d3, and the second fixed bottom plate e2 is provided with a first threaded hole d3.

[0066] And the first f1 and the second f2 between the formation of the middle passage h can be inserted hanging plate 42.

[0067] Second f2 on the wall set up a limit on the hole d0, the limit on the hole d0 can be inserted into the steel wire rope end s0. Preferably, also in the first f2 on the wall set up limit on the hole d0.

[0068] Further, the upper end of the two walls by the upper shoulder plate 3d connection, the middle of the upper shoulder plate 3d set up a through slot p, the through slot p for steel wire rope s can be inwardly sliding.

[0069] Limit on the hole d0 includes along the wall longitudinal extension of the neck segment 1d and the lower through hole 2d with the neck segment 1d communication, the end s0 along the vertical to the limit on the hole d0 on the plane direction, through the limit on the hole d0, and along the through slot p inwardly sliding a distance to away from the limit on the hole d0. Then, the end s0 of the steel wire rope can't pass through the through slot p in the longitudinal direction, to realize the activity type connection of the connecting frame d1 and the steel wire rope s, and the structure is stable after connection.

[0070] The insertion direction of the end s0 and the limit direction of the steel wire rope and the connecting frame d1 are staggered (perpendicular to each other), so that the end s0 is not easy to come out.

[0071] Preferably, the shape of the limit on the hole d0 is consistent with the shape of the longitudinal section of the end s0, so as to ensure that the end s0 can pass through the limit on the hole d0 smoothly.

[0072] For the fixed structure of the connecting frame d1 and the hanging plate 42, it needs to be explained on another level that, as shown in Figure 12 The first f1 of the first hook v1 is provided on one side of the wall, which extends to the second f2, and the second hook v2 is provided on the other side of the second f2, which extends to the first f1.

[0073] The first hook v1 and the second hook v2 are staggered and hooked on both sides of the hanging plate 42, so that the connecting frame d1 is more stably supported on the hanging plate 42.

[0074] It needs to be further explained that the first and second hooks are provided with a bending segment x extending to one side and a longitudinal segment y extending downward from the outer end of the bending segment x, and the inner side wall of the longitudinal segment y is tightly attached to the outer wall of the hanging plate 42, so as to realize the clamping and fixing of the connecting frame d1 and the hanging plate 42 in the left and right directions.

[0075] The second screw t2, the fixed bottom plate d2 and the inner wall 47 of the pipe body 41 form a technical means to realize the fixing of the first connecting element D1 and the drying rod 40 in the longitudinal direction.

[0076] That is, in the longitudinal and transverse directions, the corresponding technical means are arranged to ensure the stable installation between the drying rod 40 and the connecting element.

[0077] The hanging plate 42 is provided with a decorative cover 44 for sealing the first connecting element D1. The decorative cover 44 comprises a first cover part c1 and a second cover part c2; the inner side of the first cover part c1 is provided with at least one connecting column c2', and the second cover part c2 is provided with a connecting hole c3 through which the third screw t3 is screwed on the connecting column c2; on the other hand, the hanging plate 42 is provided with a through hole c4 through which the connecting column c2 passes. Thus, the fixation of the structure of the decorative cover 44 itself is achieved, and the decorative cover 44 hides the connection between the steel wire rope s and the hanging plate 42 and achieves the decorative function.

[0078] Preferably, the decorative cover 44 is provided with an inner lining assembly 50 which wraps the steel wire rope s. It should be noted that the inner lining assembly 50 has an opening at the top for the steel wire rope s to pass through, and the diameter of the opening is equivalent to that of the steel wire rope s. Thus, the top of the connection structure between the steel wire rope s and the drying rod 40 is covered, further achieving the decorative purpose of optimizing the appearance and improving the aesthetics. Based on this setting, the aperture of the opening cannot be too large, so at this time, the inner lining assembly 50 is preferably arranged in a symmetrical detachable structure, i.e. similar to the installation logic of the decorative cover 44. When installed, the left and right inner lining pieces cover the slot in the middle of the decorative cover 44. Without the need to pass the steel wire rope s through the opening with a small aperture, the installation cost is increased.

[0079] Preferably, it should be noted that the panel assembly 20 comprises a panel 21 and a receiving frame 23 with a groove 22, the receiving frame 23 comprises two side walls b2 and a top wall b1, and the main machine 10 comprises a bottom plate 11. When installed, the first fastener T1 connects the bottom plate 11 and the top wall b1, the first fastener T1 is a first screw t1, the bottom plate 11 is provided with a threaded hole 13, and the top wall b1 is provided with a through hole 12; the first screw t1 passes through the through hole 12 on the top wall b1 and is screwed into the threaded hole 13 of the bottom plate 11.

[0080] Preferably, the access hole 02 is provided with a detachable access cover 60 to further conceal the internal structure of the access hole 02. After the access cover 60 is covered, it forms a continuous surface with the bottom wall 01 of the pipe body 41, optimizing the overall appearance and aesthetics of the clothes drying machine. This technical means is consistent with the embedded hidden theme of the clothes drying machine, and the technical specific layout is consistent with the main theme of the invention

[0081] Further preferably, the longitudinal section of the middle channel h on the first connecting element D1 has an upper section in the shape of a "V", and the first and second side walls have a certain length to ensure that the connecting frame d1 has a certain degree of shock absorption in the left-right direction, further ensuring the stability of the connecting frame d1 in connection. The lower section of the longitudinal section of the middle channel h is close to the two side surfaces of the hanging plate 42.

[0082] The first and second side walls f1 and f2 are inwardly inclined by a distance, so that the upper section of the middle channel h has a "V" shape. The first and second fixed bottom plates e1 and e2 are symmetrically extended outward by a distance, and the distance between the inner end surfaces of the first and second fixed bottom plates is equivalent to the thickness of the hanging plate 42.

[0083] Preferably, the cross section of the pipe body 41 has a trapezoidal shape, including two symmetrically distributed outwardly inclined limiting walls g1 on the upper end; the positioning block d includes two symmetrically distributed inclined limiting surfaces g2, and after the limiting walls g1 and the inclined limiting surfaces g2 are fitted, the positioning block d is restricted from moving left and right in the inner cavity of the pipe body 41.

[0084] The above describes the hidden clothes drying machine provided by the present application, which has double rods running independently and is convenient to maintain. The principles and implementation modes of the present application are described by applying specific examples in this paper. The above description of the embodiments is only used to help understand the present application and the core idea. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A retractable clothesline having easy access for maintenance, characterised in that The main machine with a steel wire rope driver, a panel assembly with a groove and a drying rod driven by the steel wire rope; The panel assembly is fixed to the main machine by at least one first fastener; The drying rod is lifted into the groove of the panel assembly in the steel wire rope tightening state; The drying rod comprises a tube body on the lower side and a hanging plate on the upper side, and a plurality of hanging holes are distributed along the length direction of the hanging plate; The lower end of the steel wire rope is connected with a first connecting element, and the tube body is provided with a second connecting element; At least one second fastener is sequentially inserted from the lower side to the upper side through the second connecting element and the first connecting element, and the two are connected and fixed; The tube body comprises a bottom wall, and the bottom wall is provided with an inspection opening, and the second fastener is located at the position directly above the inspection opening; The first connecting element comprises a connecting frame capable of buckling the free end of the steel wire rope and a fixed bottom plate located at the lower part of the connecting frame, and the fixed bottom plate is provided with at least one first threaded hole; The second connecting element is a positioning block matched with the inner wall of the tube body, and the positioning block is provided with a second threaded hole corresponding to the first threaded hole; The second fastener is a second screw, and the second screw is sequentially inserted from the lower side to the upper side through the second threaded hole of the positioning block, the upper inner wall of the tube body and the first threaded hole of the fixed bottom plate, and the three are fixed.

2. The hidden clothes drying machine convenient for maintenance according to claim 1, characterized in that The connecting frame comprises a first supporting wall and a second supporting wall located on the two sides of the hanging plate respectively, the lower side of the first supporting wall is provided with a first fixed bottom plate in a bent manner, and the lower side of the second supporting wall is provided with a second fixed bottom plate in a bent manner; The first fixed bottom plate is provided with a first threaded hole, and the second fixed bottom plate is provided with a first threaded hole; An intermediate passage capable of inserting the hanging plate is formed between the first supporting wall and the second supporting wall; A limiting connecting hole is formed in the second supporting wall, and the connecting end of the steel wire rope is movably inserted into the limiting connecting hole.

3. The hidden clothes drying machine with easy maintenance according to claim 2, characterized in that One side of the first supporting wall is provided with a first hook part extending to the second supporting wall, and the other side of the second supporting wall is provided with a second hook part extending to the first supporting wall; The first hook part and the second hook part are arranged in a staggered manner, and each is hooked on the two sides of the hanging plate, so that the connecting frame is stably arranged on the hanging plate.

4. The hidden clothes drying machine convenient for maintenance according to claim 1, characterized in that A decorative cover is mounted on the hanging plate to enclose the first connecting element; The decorative cover comprises a first cover part and a second cover part, the inner side of the first cover part is provided with at least one connecting column, the second cover part is provided with a connecting hole, and a third screw is screwed on the connecting column through the connecting hole; The hanging plate is provided with a through hole for the connecting column.

5. The retractable clothes drying machine of claim 4, wherein An inner lining assembly is arranged in the decorative cover to wrap the steel wire rope.

6. The hidden clothes drying machine convenient for maintenance according to claim 1, characterized in that The panel assembly comprises a panel and a receiving frame with the groove, and the receiving frame comprises two side walls and a top wall; The main machine comprises a bottom plate; The first fastener connects the bottom plate and the top wall, the first fastener is a first screw, the bottom plate is provided with a threaded hole, and the top wall is provided with a through hole; The first screw is screwed into the threaded hole of the bottom plate after passing through the through hole of the top wall.

7. The hidden clothes drying machine convenient for maintenance according to claim 1, characterized in that The inspection opening is provided with a detachable inspection cover.

8. The hidden clothes drying machine with easy maintenance according to claim 2, characterized in that The first supporting wall and the second supporting wall are inwardly inclined by a distance, so that the upper part of the intermediate passage is in a "V" type structure. The first and second fixed bottom plates symmetrically extend outwardly by a distance, and the distance between the inner ends of the first and second fixed bottom plates is equivalent to the thickness of the hanging plate.

9. The hidden clothes drying machine convenient for maintenance according to claim 1, characterized in that The cross section of the pipe body is trapezoidal, including upper end portions on both sides of which are symmetrically distributed and outwardly inclined limiting walls; The positioning block includes two symmetrically distributed inclined limiting surfaces, and after the limiting walls and the inclined limiting surfaces are fitted, the positioning block is limited to move left and right in the inner cavity of the pipe body.

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