A mobile folding tool for external thermal insulation of air ducts

Abstract

The present application relates to the technical field of air pipe aluminum skin processing, in particular to a mobile air pipe external thermal insulation aluminum skin folding tool, which comprises two "U"-shaped mounting racks, a lifting drive shaft is rotatably mounted on one side of each mounting rack opposite to each other, an "L"-shaped right-angle plate is liftingly mounted on the bottom of the lifting drive shaft, and a "U"-shaped folding steel plate is rotatably arranged on the bottom of the right-angle plate. The present application can position the aluminum skin through the setting of the folding ruler and the positioning block, can make the folding of the aluminum skin accurate in size, can effectively and accurately position the aluminum skin through the folding ruler, can obtain the aluminum skin more suitable for actual application according to the different requirements of the aluminum skin at different construction sites, can avoid the situation that the aluminum skin is too large or too small, and need not secondary processing, thereby greatly improving the installation efficiency of the air pipe external thermal insulation aluminum skin.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air pipe aluminum skin processing, in particular to a mobile air pipe outer thermal insulation aluminum skin folding tool. BACKGROUND

[0002] With the difference of building structure, the size of machine room space is different, and the comprehensive arrangement of each mechanical and electrical pipeline directly affects the efficiency of each process, whether the function is realized, and also affects the quality of the machine room, operation and maintenance. The air pipe outer thermal insulation aluminum skin is used for air conditioning system engineering to reduce heat loss, and the aluminum skin insulation can increase the quality of the machine room system.

[0003] However, the existing mobile air pipe outer thermal insulation aluminum skin folding tool still has some defects when in use, especially for different air pipes in the machine room. The mobile air pipe outer thermal insulation aluminum skin folding tool in the prior art for such a situation often needs to process the aluminum skin in advance, and then transport the processed aluminum skin to the installation point for installation. It is easy to have the problem of too large or too small size of the aluminum skin, and it needs to be processed twice to correct it, which is very troublesome. If the aluminum skin is folded and processed at the construction site, the folding tool is not convenient to carry. SUMMARY

[0004] The purpose of the present application is to provide a mobile air pipe outer thermal insulation aluminum skin folding tool to solve the problems in the background art.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] A mobile air pipe outer thermal insulation aluminum skin folding tool, comprising two "U"-shaped mounting frames, a lifting drive shaft is rotatably installed on one side of each of the two mounting frames opposite to each other, a "L"-shaped right-angle plate is liftingly installed at the bottom of the lifting drive shaft, a "U"-shaped folding steel plate is rotatably arranged at the bottom of the right-angle plate, the folding steel plate and the right-angle plate are used for folding the aluminum skin, a folding ruler is rotatably installed at the bottom of the folding steel plate, a positioning block for positioning the aluminum skin is slidingly installed on the folding ruler, a vertical steel plate is fixedly connected to one side of the folding steel plate, the vertical steel plate abuts against the inner wall of one side of the mounting frame, folding legs are rotatably installed at the bottom of the mounting frame, and a leg positioning belt for positioning and packing is arranged at the middle section of the folding leg.

[0007] Preferably, one end of the lifting drive shaft is fixedly connected with an "L"-shaped horizontal handle, the horizontal handle is located outside one of the two mounting frames, the horizontal handle is used for folding the aluminum skin of the air pipe, rotating grooves are formed in the top of the two opposite sides of the two mounting frames, the lifting drive shaft is rotatably connected in the rotating grooves, one end of the lifting drive shaft penetrates through the wall plate of the mounting frame, springs are arranged at the two ends and the center of the lifting drive shaft, the two ends of the springs are fixedly connected with the top of the two ends of the connecting plate, the connecting plate is an upside-down "U"-shaped and the two ends of the connecting plate are fixedly connected with the top center of the two plate bodies of the right angle plate, the springs are fixedly connected with the top of the connecting plate in a "U"-shaped and the lifting drive shaft is located in the closed interval formed by the connecting plate and the springs.

[0008] Preferably, the outer walls at the two ends and the center of the lifting drive shaft are fixedly connected with vertical plates, rollers are rotatably connected with the ends of the vertical plates away from the lifting drive shaft, the rollers movably abut against the connecting plate, the vertical plates are located at the side of the springs close to the horizontal handle, the right angle plate is lifted and mounted on the opposite side of the two mounting frames through the springs and the vertical plates, the side walls of the two connecting plates at the two ends of the lifting drive shaft abut against the inner walls of the two mounting frames and the connecting plates are slidably connected in the mounting frames.

[0009] Preferably, the bottom of the opposite side of the two mounting frames is fixedly connected with a rotating drive shaft, the rotating drive shaft is fixedly connected with the bottom side of the mounting frame, the rotating drive shaft is rotatably sleeved with the folding steel plate, the bottom of the right angle plate is provided with a right angle groove, the connection between the horizontal end and the vertical end of the folding steel plate is provided with a right angle edge, the right angle edge movably abuts against the right angle groove at the bottom of the right angle plate, one end corner of the folding steel plate is provided with a rotating hole, the rotating hole is rotatably sleeved on the rotating drive shaft.

[0010] Preferably, the side wall plate of the folding steel plate close to the rotating drive shaft is fixedly connected with a "U"-shaped vertical steel plate, the two ends of the vertical steel plate abut against the inner walls of the two mounting frames, the vertical steel plate keeps the folding steel plate horizontal through abutting against the inner walls of the two mounting frames, the bottom center of the vertical steel plate is fixedly connected with a vertical handle used for folding the aluminum skin of the air pipe.

[0011] Preferably, the inner top of the folding steel plate is fixedly connected with a welding shaft with a "T"-shaped cross section at the two ends, rotating rulers are rotatably sleeved on the outer side of the welding shaft, one end of the rotating ruler is rotatably connected with the welding shaft, the positioning block is rotatably mounted on the end of the rotating ruler away from the welding shaft, two rectangular holes are formed in the side of the folding steel plate close to the vertical steel plate, the rectangular holes are located above the two sides of the vertical handle, strip-shaped holes are formed in the sides of the two rectangular holes away from each other, the strip-shaped holes are used for rotating the rotating ruler to the outer side of the folding steel plate, the rectangular holes are used for rotating the positioning block to the outer side of the folding steel plate.

[0012] Preferably, one end of the positioning block is provided with a rectangular sliding groove, the rectangular sliding groove is sleeved on the rotating ruler, the side top of the positioning block close to the welding shaft is fixedly connected with a clamping plate, the clamping plate is used for clamping the aluminum skin, a center of the end of the positioning block close to the clamping plate is threadedly connected with a tight bolt, the tight bolt penetrates through the positioning block, and the tight bolt is in movable abutment with the rotating ruler.

[0013] Preferably, the two folding legs are fixedly connected with clamping plates at the middle sections of the two folding legs away from the vertical steel plate, the two clamping plates are located on the sides of the two folding legs close to each other, and the clamping plates are movably clamped with the rotating ruler.

[0014] Preferably, the bottom center of the mounting frame is fixedly connected with a fixed block, the fixed block is fixedly connected with a fixed shaft, the fixed shaft penetrates through the fixed block, both ends of the fixed shaft are rotatably sleeved with transverse supports, the bottom of each transverse support is fixedly connected with a 'U'-shaped longitudinal support, the two longitudinal supports are away from each other about the opening of the 'U' shape, the side plates of the longitudinal supports opposite to each other are fixedly connected with longitudinal rotating shafts, the longitudinal rotating shafts are rotatably sleeved with the end portions of the folding legs, and the middle sections of the folding legs are provided with grooves.

[0015] Preferably, the bottom sides of the mounting frame are fixedly connected with limiting plates, the limiting plates are in abutment with the side walls of the folding legs, one end of the leg positioning belt is fixedly connected with a buckle, a clamping groove is formed in the center of the buckle, the other end of the leg positioning belt away from the buckle is movably inserted into the clamping groove, and the clamping groove is clamped with the belt surface of the leg positioning belt.

[0016] The beneficial effects of the present application are as follows:

[0017] 1. The present application can position the aluminum skin through the setting of the rotating ruler and the positioning block, can make the device accurate in folding the aluminum skin, can effectively and accurately position the aluminum skin through the rotating ruler, can be more suitable for the actual application of the aluminum skin according to the different requirements of the aluminum skin at different construction sites, can avoid the situation that the aluminum skin is too large or too small, and does not need secondary processing, thereby greatly improving the installation efficiency of the outer thermal insulation aluminum skin of the air pipe.

[0018] 2. The aluminum skin is clamped and bent into a right-angled corner through the right angle of the inner bottom of the right-angle plate and the right-angled wall plate away from the vertical steel plate of the folding steel plate, one side of the aluminum skin rotates with the folding steel plate, and the aluminum skin is folded into an angle, the operation is smooth, and the corner is once formed, the device is simple to operate, the corner forming is beautiful, the aluminum skin is folded at the specific folding position, and the setting of the right-angled corner and the right-angled groove can effectively fold or bend the aluminum skin, so that the aluminum skin of the air pipe is more aesthetic during installation.

[0019] 3、The present application packs the device through the supporting leg positioning belt, which can position the folding supporting leg, prevent the disconnection of the clamping plate and the clamping of the folding ruler, reduce the occupied space of the device after folding, improve the portability of the device, clamp the right angle plate through the supporting leg positioning belt, prevent the right angle plate from shaking under the elastic force of the spring during movement, and greatly improve the stability of the device during transportation. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, and obviously, other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings;

[0021] Figure 1 is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 is an enlarged schematic diagram of the A part structure shown in the present application; Figure 1

[0023] Figure 3 is an enlarged schematic diagram of the B part structure shown in the present application; Figure 1

[0024] Figure 4 is a structural section view schematic diagram of the lifting drive shaft of the present application;

[0025] Figure 5 is a structural section view schematic diagram of the vertical handle of the present application;

[0026] Figure 6 is a structural section view schematic diagram of the vertical handle of the present application;

[0027] Figure 7 is a connection structure schematic diagram of the mounting frame and the folding supporting leg of the present application;

[0028] Figure 8 is an effect diagram of the folding ruler rotating out of the folding steel plate of the present application;

[0029] Figure 9 is an enlarged schematic diagram of the C part structure shown in the present application; Figure 8

[0030] is an effect diagram of the folding supporting leg after being stored of the present application; Figure 10

[0031] ​​​Figure 11 is the present application Figure 10 is an enlarged schematic view of the D part structure shown in the figure.

[0032] The reference signs in the figure are as follows: 1, mounting frame; 2, horizontal handle; 3, folding leg; 4, right-angle plate; 5, lifting drive shaft; 6, spring; 7, connecting plate; 8, vertical steel plate; 9, rectangular hole; 10, strip-shaped hole; 11, vertical handle; 12, limiting plate; 13, clamping plate; 14, leg positioning belt; 15, buckle; 16, clamping groove; 17, vertical plate; 18, roller; 19, folding steel plate; 20, fixing block; 21, fixing shaft; 22, rotating drive shaft; 23, welding shaft; 24, rotating ruler; 25, positioning block; 26, longitudinal support; 27, transverse support; 28, slotted hole; 29, longitudinal rotating shaft; 30, tightening bolt; 31, rectangular sliding groove; 32, clamping plate. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0034] As Figures 1-11 shown, a mobile wind pipe outer thermal insulation aluminum skin folding tool comprises two "U"-shaped mounting frames 1, a lifting drive shaft 5 is rotatably installed on one side of each mounting frame 1 opposite to each other, an "L"-shaped right-angle plate 4 is liftingly installed at the bottom of the lifting drive shaft 5, a "U"-shaped folding steel plate 19 is rotatably arranged at the bottom of the right-angle plate 4, the folding steel plate 19 and the right-angle plate 4 are used for folding aluminum skin, a rotating ruler 24 is rotatably installed at the bottom of the folding steel plate 19, a positioning block 25 for positioning aluminum skin is slidingly installed on the rotating ruler 24, a vertical steel plate 8 is fixedly connected to one side of the folding steel plate 19, the vertical steel plate 8 abuts against the inner wall of one side of the mounting frame 1, folding legs 3 are rotatably installed at the bottom of each mounting frame 1, and a leg positioning belt 14 for positioning and packing is arranged at the middle segment of each folding leg 3. The rotating ruler 24 can effectively and accurately position the aluminum skin, and can be used for different aluminum skins according to different requirements of different construction sites, so as to avoid the situation that the aluminum skin is too large or too small.

[0035] As a technical optimization scheme of the present application, one end of the lifting drive shaft 5 is fixedly connected with an "L"-shaped horizontal handle 2, the horizontal handle 2 is located outside one of the mounting frames 1, the horizontal handle 2 is used to fold the aluminum skin of the air pipe, the top of the side opposite to each other of the two mounting frames 1 is provided with a rotating groove, the lifting drive shaft 5 is rotatably connected in the rotating groove, the end of the lifting drive shaft 5 close to the horizontal handle 2 penetrates through the wall plate of the mounting frame 1, the two ends and the center of the lifting drive shaft 5 are provided with springs 6, the two ends of the spring 6 are fixedly connected with the top of the connecting plate 7, the connecting plate 7 is an inverted "U"-shaped and the two ends of the connecting plate 7 are fixedly connected with the top center of the two plate bodies of the right angle plate 4, the spring 6 is fixedly connected with the top of the connecting plate 7 in a "U"-shaped and the lifting drive shaft 5 is located in the closed interval formed by the connecting plate 7 and the spring 6. The two side walls of the connecting plate 7 abut against the two side inner walls of the mounting frame 1, the setting of the lifting drive shaft 5 and the connecting plate 7 can support the right angle plate 4 on the one hand and can also ensure that the right angle of the right angle plate 4 is always in the vertical downward direction on the other hand.

[0036] As a technical optimization scheme of the present application, the outer wall of the two ends and the center of the lifting drive shaft 5 is fixedly connected with a vertical plate 17, the end of the vertical plate 17 away from the lifting drive shaft 5 is rotatably connected with a roller 18, the roller 18 movably abuts against the connecting plate 7, the vertical plate 17 is located at the side of the spring 6 close to the horizontal handle 2, the right angle plate 4 is lifted and installed on the side opposite to each other of the two mounting frames 1 through the spring 6 and the vertical plate 17, the side walls of the two connecting plates 7 located at the two ends of the lifting drive shaft 5 abut against the two side inner walls of the mounting frame 1 and the connecting plate 7 is slidably connected in the mounting frame 1. The spring 6 always exerts an upward force on the right angle plate 4, thereby enabling the aluminum skin to smoothly pass through the gap between the right angle plate 4 and the folded steel plate 19.

[0037] As a technical optimization scheme of the present application, the bottom of the side opposite to each other of the two mounting frames 1 is fixedly connected with a rotating drive shaft 22, the rotating drive shaft 22 is fixedly connected with the bottom side of the mounting frame 1, the rotating drive shaft 22 is rotatably sleeved with the folded steel plate 19, the bottom of the right angle plate 4 is provided with a right angle groove, the connection between the horizontal end and the vertical end of the folded steel plate 19 is provided with a right angle edge, the right angle edge movably abuts against the right angle groove at the bottom of the right angle plate 4, the end corner of the folded steel plate 19 is provided with a rotating hole, the rotating hole is rotatably sleeved on the rotating drive shaft 22. The setting of the right angle edge and the right angle groove can effectively fold or bend the aluminum skin, thereby enabling the aluminum skin of the air pipe to be more aesthetic when installed.

[0038] As a technical optimization scheme of the present application, the U-shaped vertical steel plate 8 is fixedly connected to the side wall plate of the folding steel plate 19 close to the rotating drive shaft 22, the two ends of the vertical steel plate 8 abut against the two side inner walls of the mounting frame 1, the vertical steel plate 8 keeps the folding steel plate 19 horizontal by abutting against the two side inner walls of the mounting frame 1, and the bottom center of the vertical steel plate 8 is fixedly connected to the vertical handle 11 for folding the aluminum skin of the air pipe. The arrangement of the vertical steel plate 8 can keep the folding steel plate 19 in a horizontal state when not in use. The folding steel plate 19 has a downward movement tendency under the action of gravity, and the vertical steel plate 8 can abut against the side inner wall of the mounting frame 1 at this time.

[0039] As a technical optimization scheme of the present application, the two ends of the inner top of the folding steel plate 19 are fixedly connected to the T-shaped welded shaft 23, the outer side of the welded shaft 23 is rotatably sleeved with the rotating ruler 24, one end of the rotating ruler 24 is rotatably connected to the welded shaft 23, the positioning block 25 is rotatably installed at the end of the rotating ruler 24 away from the welded shaft 23, two rectangular holes 9 are formed in the side of the folding steel plate 19 close to the vertical steel plate 8, the rectangular holes 9 are located above the two sides of the vertical handle 11, a strip-shaped hole 10 is formed in the side of the two rectangular holes 9 away from each other, the strip-shaped hole 10 is used for rotating the rotating ruler 24 to the outer side of the folding steel plate 19, and the rectangular hole 9 is used for rotating the positioning block 25 to the outer side of the folding steel plate 19. The arrangement of the rectangular hole 9 and the strip-shaped hole 10 can effectively realize the rotating of the rotating ruler 24 out of the bottom of the folding steel plate 19 or the storage of the rotating ruler 24.

[0040] As a technical optimization scheme of the present application, one end of the positioning block 25 is provided with a rectangular sliding groove 31, the rectangular sliding groove 31 is slidably sleeved on the rotating ruler 24, the side top of the positioning block 25 close to the welded shaft 23 is fixedly connected with the clamping plate 32, the clamping plate 32 is used for clamping the aluminum skin, the center of the end of the positioning block 25 close to the clamping plate 32 is threadedly connected with the tight bolt 30, the tight bolt 30 penetrates through the positioning block 25, and the tight bolt 30 movably abuts against the rotating ruler 24. The clamping plate 32 can be located above or below the rotating ruler 24 by tightening the positioning block 25, which can be achieved by inserting the positioning block 25 at the end of the rotating ruler 24 after rotating 180°.

[0041] As a technical optimization scheme of the present application, the middle sections of the two folding legs 3 away from the vertical steel plate 8 are fixedly connected with the clamping plates 13, the two clamping plates 13 are located on the sides of the two folding legs 3 close to each other, and the clamping plates 13 movably abut against the rotating ruler 24. The clamping plate 13 is in the shape of "h", and the opening of the "h" shape is located on the side of the clamping plate 13 away from the folding leg 3.

[0042] As a technical optimization scheme of the present application, the bottom center of the mounting frame 1 is fixedly connected with a fixed block 20, the fixed block 20 is fixedly connected with a fixed shaft 21, the fixed shaft 21 penetrates through the fixed block 20, the both ends of the fixed shaft 21 are rotatably sleeved with a transverse support 27, the bottom of the transverse support 27 is fixedly connected with a U-shaped longitudinal support 26, the two longitudinal supports 26 are away from each other with respect to the opening of the U-shaped, the side of the both side plates of the longitudinal support 26 opposite to each other is fixedly connected with a longitudinal rotating shaft 29, the longitudinal rotating shaft 29 is rotatably sleeved at the end of the folding leg 3, the middle segment of the folding leg 3 is provided with a groove 28, and the leg positioning belt 14 is movably inserted into the groove 28. The groove 28 can make the leg positioning belt 14 pass through, and the buckle 15 provided at the end of the leg positioning belt 14 is fixed on the folding leg 3 provided with the clamping plate 13.

[0043] As a technical optimization scheme of the present application, the bottom center of the mounting frame 1 is fixedly connected with a fixed block 20, the fixed block 20 is fixedly connected with a fixed shaft 21, the fixed shaft 21 penetrates through the fixed block 20, the both ends of the fixed shaft 21 are rotatably sleeved with a transverse support 27, the bottom of the transverse support 27 is fixedly connected with a U-shaped longitudinal support 26, the two longitudinal supports 26 are away from each other with respect to the opening of the U-shaped, the side of the both side plates of the longitudinal support 26 opposite to each other is fixedly connected with a longitudinal rotating shaft 29, the longitudinal rotating shaft 29 is rotatably sleeved at the end of the folding leg 3, the middle segment of the folding leg 3 is provided with a groove 28, and the leg positioning belt 14 is movably inserted into the groove 28. The groove 28 can make the leg positioning belt 14 pass through, and the buckle 15 provided at the end of the leg positioning belt 14 is fixed on the folding leg 3 provided with the clamping plate 13.

[0044] In use, first, the device is placed on the ground of the machine room, then the rotating ruler 24 is rotated from below the folding steel plate 19 to the side of the vertical steel plate 8 away from the folding steel plate 19 through the welding shaft 23, and the rotating ruler 24 and the vertical steel plate 8 are perpendicular to each other, then the aluminum skin is inserted into the gap between the right angle plate 4 and the folding steel plate 19 away from the vertical steel plate 8, the clamping plate 32 on the positioning block 25 is adjusted from below the rotating ruler 24 to above the rotating ruler 24, the length of the aluminum skin is positioned by sliding the positioning block 25 on the rotating ruler 24, after positioning the positioning block 25, the positioning block 25 is fixed on the rotating ruler 24 by rotating the fixing bolt 30, so that the positioning block 25 cannot move on the rotating ruler 24, then the end of the aluminum skin close to the positioning block 25 is clamped in the clamping plate 32 on the positioning block 25, so that the aluminum skin is effectively fixed.

[0045] After the positioning block 25 positions and fixes the aluminum skin, the aluminum skin is bent by rotating the horizontal handle 2 and the vertical handle 11. When the vertical handle 11 is rotated, the vertical handle 11 will make the aluminum skin on the side of the folding steel plate 19 close to the rotating ruler 24 rotate downward, and the aluminum skin on the other side will rotate upward. In this process, the aluminum skin that rotates upward is limited by the right-angle plate 4, so that the aluminum skin can be smoothly bent to a right angle in the subsequent bending. When the horizontal handle 2 is rotated, the horizontal handle 2 will drive the lifting drive shaft 5 to rotate, and then the lifting drive shaft 5 will drive the roller 18 to rotate through the vertical plate 17. After the roller 18 rotates, the roller 18 will abut against the top wall plate of the connecting plate 7, and then the force applied to the connecting plate 7 by the roller 18 and the vertical plate 17 will make the connecting plate 7 descend. After the connecting plate 7 descends, it will also drive the right-angle plate 4 to descend. After the right-angle plate 4 descends, it will abut against the end of the folding steel plate 19 away from the vertical steel plate 8, and then the right-angle plate 4 will clamp the aluminum skin to be bent to a right-angle edge through the right-angle inside the bottom of the right-angle plate 4 and the right-angle wall plate of the end of the folding steel plate 19 away from the vertical steel plate 8. The aluminum skin rotates with the folding steel plate 19, and is folded into an angle. The operation is smooth, and the edge is formed at one time. The tool is simple to operate, the angle forming is beautiful, and the specific folding position of the aluminum skin can be positioned through the setting of the rotating ruler 24 and the positioning block 25, so that the device can accurately fold the aluminum skin.

[0046] After the aluminum skin is bent, the positioning block 25 is disassembled and reversed by 180°, and then the positioning block 25 is inserted into the end of the rotating ruler 24. The rotating ruler 24 is rotated to the lower side of the folding steel plate 19 by rotating the rotating ruler 24, so that the folding steel plate 19 can effectively protect the rotating ruler 24. After the rotating ruler 24 is rotated to the lower side of the folding steel plate 19, the leg positioning belt 14 is pulled out of the buckle 15, and then the end of the leg positioning belt 14 away from the buckle 15 is pulled to make the two folding legs 3 rotate towards each other. At this time, the folding legs 3 rotate around the longitudinal rotating shaft 29 as the center, and then the folding legs 3 are rotated towards the folding steel plate 19. At this time, the folding legs 3 rotate around the fixed shaft 21 as the center. After the folding legs 3 are rotated to the lower side of the folding steel plate 19, the rotating ruler 24 is positioned in the opening of the clamping plate 13 by controlling the clamping of the clamping plate 13 and the rotating ruler 24. The clamping plate 13 will position the rotating ruler 24 to prevent the rotating ruler 24 from rotating during the movement of the device. The folding steel plate 19 can effectively protect the rotating ruler 24, prevent the rotating ruler 24 from being impacted and bent during the movement of the device, and improve the service life of the rotating ruler 24.

[0047] After the fixing of the rotating ruler 24, the folding leg positioning belt 14 is wound around the upper side of the right angle plate 4 and below the lifting driving shaft 5, and then the end of the folding leg positioning belt 14 away from the buckle 15 is inserted into the clamping groove 16, so that the device is packed by the folding leg positioning belt 14, which can position the folding leg 3, prevent the disconnection of the clamping of the clamping plate 13 arranged on the folding leg 3 and the rotating ruler 24, and reduce the occupied space of the device after folding, thereby improving the portability of the device.

[0048] When the device is transported to the construction site, the folding leg positioning belt 14 is removed, and then the folding leg 3 is rotated to support the bottom of the mounting frame 1, and the side wall plate away from each other of the two folding legs 3 below the same mounting frame 1 abuts against the limiting plate 12, so that the limiting plate 12 can effectively position the folding leg 3 and prevent the device from shaking during folding or bending of the aluminum skin, thereby improving the stability of the device during construction. The folding leg positioning belt 14 is wound around the outside of the folding leg 3, and then the end of the folding leg positioning belt 14 away from the buckle 15 is re-inserted into the clamping groove 16, which can effectively fix the folding leg 3 and assist the limiting plate 12 in fixing and limiting the folding leg 3.

[0049] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements fall within the scope of the present application.

Claims

1. A mobile folding tool for external thermal insulation of air ducts with aluminium sheet, comprising two "U" shaped mounting frames (1), characterised in that, Two said installation frame (1) opposite side of each other rotating installation has lifting drive shaft (5), the bottom of lifting drive shaft (5) lifting installation has "L" shape right angle plate (4), the bottom of right angle plate (4) rotatingly provided with "U" shape folding steel plate (19), folding steel plate (19) and right angle plate (4) are used for folding aluminum skin, the bottom of folding steel plate (19) rotatingly installed has a tape (24), the tape (24) slidingly installed has a positioning block (25) for positioning aluminum skin, the side of folding steel plate (19) is fixedly connected with vertical steel plate (8), vertical steel plate (8) and the inner wall of the side of installation frame (1) abuts, the bottom of installation frame (1) both sides are rotatingly installed with folding support leg (3), the middle segment of folding support leg (3) is provided with support leg positioning band (14) for positioning and packing; Two said installation frame (1) opposite side bottom fixedly connected with rotating drive shaft (22), rotating drive shaft (22) is fixedly connected at the bottom of installation frame (1) one side, rotating drive shaft (22) and folding steel plate (19) rotatingly sleeve, the bottom of right angle plate (4) is provided with right angle groove, the junction of the horizontal end and the vertical end of folding steel plate (19) is provided with right angle edge, the right angle edge and the right angle groove of the bottom of right angle plate (4) are movably abutted, the end corner of folding steel plate (19) is provided with rotating hole, the rotating hole is rotatingly sleeve on rotating drive shaft (22); The side wall plate of folding steel plate (19) close to rotating drive shaft (22) is fixedly connected with "U" shape vertical steel plate (8), the both ends of vertical steel plate (8) and the both side inner walls of installation frame (1) abut, vertical steel plate (8) keeps folding steel plate (19) horizontal by abutting with the both side inner walls of installation frame (1), the bottom center of vertical steel plate (8) is fixedly connected with vertical handle (11) for folding air pipe aluminum skin; The both ends of the inner top of folding steel plate (19) are fixedly connected with welding shaft (23) with "T" shape cross section, the outer side of welding shaft (23) is rotatingly sleeve with tape (24), and the end of tape (24) is rotatingly connected on welding shaft (23), positioning block (25) is rotatingly installed on the end of tape (24) away from welding shaft (23), the side of folding steel plate (19) close to vertical steel plate (8) is provided with two rectangular holes (9), rectangular holes (9) are located above the both sides of vertical handle (11), the side of two rectangular holes (9) away from each other is provided with strip hole (10), strip hole (10) is used for the tape (24) to rotate to the outside of folding steel plate (19), rectangular hole (9) is used for positioning block (25) to rotate to the outside of folding steel plate (19).

2. The mobile pipe folding tool according to claim 1, wherein, One end of the lifting drive shaft (5) is fixedly connected with an "L"-shaped horizontal handle (2), the horizontal handle (2) is located outside one of the mounting frames (1), the horizontal handle (2) is used for folding the aluminum skin of the air pipe, rotating grooves are formed in the top of the opposite sides of the two mounting frames (1), the lifting drive shaft (5) is rotatably connected in the rotating grooves, the end of the lifting drive shaft (5) close to the horizontal handle (2) penetrates the wall plate of the mounting frame (1), springs (6) are arranged at the two ends and the center of the lifting drive shaft (5), the two ends of the spring (6) are fixedly connected with the top of the two ends of the connecting plate (7), the connecting plate (7) is an inverted "U"-shaped, the two ends of the connecting plate (7) are fixedly connected with the top center of the two plate bodies of the right angle plate (4), the spring (6) is fixedly connected with the top of the connecting plate (7) and the lifting drive shaft (5) is located in the closed interval formed by the connecting plate (7) and the spring (6).

3. The mobile pipe folding tool according to claim 2, wherein, The outer walls of the two ends and the center of the lifting drive shaft (5) are fixedly connected with vertical plates (17), the vertical plates (17) are rotatably connected with rollers (18) away from the lifting drive shaft (5), the rollers (18) are movably abutted with the connecting plate (7), the vertical plates (17) are located on the side of the spring (6) close to the horizontal handle (2), the right angle plate (4) is lifted and installed on the opposite side of the two mounting frames (1) through the spring (6) and the vertical plate (17), the side walls of the two connecting plates (7) at the two ends of the lifting drive shaft (5) are abutted with the inner walls of the two sides of the mounting frame (1) and the connecting plate (7) is slidably connected in the mounting frame (1).

4. The mobile pipe folding tool according to claim 1, wherein, One end of the positioning block (25) is provided with a rectangular sliding groove (31), the rectangular sliding groove (31) is slidably sleeved on the rotating ruler (24), the side top of the positioning block (25) close to the welding shaft (23) is fixedly connected with a clamping plate (32), the clamping plate (32) is used for clamping the aluminum skin, a tight bolt (30) is threadedly connected with the center of the end of the positioning block (25) close to the clamping plate (32), the tight bolt (30) penetrates the positioning block (25) and the tight bolt (30) is movably abutted with the rotating ruler (24).

5. A mobile pipe folding tool for folding an outer insulation aluminium sheet of a wind pipe according to claim 4, wherein, The middle sections of the two folding legs (3) away from the vertical steel plate (8) on the side of the folding steel plate (19) are fixedly connected with clamping plates (13), the two clamping plates (13) are located on the sides close to each other of the two folding legs (3), and the clamping plates (13) are movably clamped with the rotating ruler (24).

6. The mobile pipe folding tool according to claim 1, wherein, The bottom center of the mounting frame (1) is fixedly connected with a fixed block (20), the fixed block (20) is fixedly connected with a fixed shaft (21), the fixed shaft (21) penetrates through the fixed block (20), both ends of the fixed shaft (21) are rotatably sleeved with a transverse support (27), the bottom of the transverse support (27) is fixedly connected with a "U"-shaped longitudinal support (26), the two longitudinal supports (26) are away from each other about the opening of the "U" shape, the side of the two side plates of the longitudinal support (26) opposite to each other is fixedly connected with a longitudinal rotating shaft (29), the longitudinal rotating shaft (29) is rotatably sleeved at the end of the folding leg (3), the middle segment of the folding leg (3) is provided with a groove (28), and the leg positioning belt (14) is movably inserted into the groove (28).

7. A mobile pipe folding tool for folding an outer insulation aluminium sheet of a wind pipe according to claim 6, wherein, The bottom of the mounting frame (1) is fixedly connected with a limiting plate (12), the limiting plate (12) is respectively abutted with the side wall of the folding leg (3), one end of the leg positioning belt (14) is fixedly connected with a buckle (15), the center of the buckle (15) is provided with a clamping groove (16), the end of the leg positioning belt (14) away from the buckle (15) is movably inserted into the clamping groove (16), and the clamping groove (16) is clamped with the belt surface of the leg positioning belt (14).

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