Energy storage battery with explosion-proof function

Abstract

The present application relates to the field of energy storage battery, especially to an energy storage battery with explosion-proof function, which comprises support frames, folding supports, lithium batteries, a sleeve, side rods, a connecting cylinder and a bottom plate, the support frames are provided with two, support columns are equidistantly arranged between the support frames, the opposite ends of the support columns are fixedly connected with the corresponding support frames, the side rods are provided with multiple, and the side rods are equidistantly fixedly connected in the corresponding support frames. The energy storage battery with explosion-proof function can store multiple lithium batteries, increase the energy storage capacity, and make the sleeve drive the lithium batteries to tilt by rotating the stop rod and staggering the lithium batteries, so that the lithium batteries are more convenient and labor-saving when taking and placing. When the heat dissipation of the lithium batteries cannot meet the requirements, the folding distance can be adjusted by rotating the threaded rod to adjust the distance between the lithium batteries and increase the heat dissipation between the lithium batteries, so as to avoid the safety hazards caused by the high temperature of the lithium batteries due to slow heat dissipation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of energy storage batteries, in particular to an energy storage battery with explosion-proof function. BACKGROUND

[0002] When energy storage is performed, multiple lithium batteries are often connected in series to form a battery pack to increase the amount of energy storage. However, when the number of existing lithium batteries is large, they are placed in a support frame or a battery cabinet in an orderly manner, which is inconvenient for arrangement, taking and placing. Moreover, the distance between lithium batteries is relatively close, so it is likely that there will be insufficient heat dissipation during charging, resulting in a fire, and even a chemical reaction inside the lithium battery due to high temperature during charging, which produces a large amount of gas, causing the internal pressure of the battery to increase rapidly and an explosion accident, which has certain safety hazards.

[0003] Therefore, it is necessary to provide a new energy storage battery with explosion-proof function to solve the above technical problems. SUMMARY

[0004] To solve the above technical problems, the present application provides an energy storage battery with explosion-proof function.

[0005] The energy storage battery with explosion-proof function provided by the present application comprises a support frame, a folding support, a lithium battery, a sleeve, a side rod, a connecting cylinder and a bottom plate. Two support frames are provided, and support columns are equidistantly arranged between the support frames. The opposite ends of the support columns are fixedly connected with the corresponding support frames. A plurality of side rods are provided, and the side rods are equidistantly fixedly connected inside the corresponding support frames. Sliders are equidistantly and slidingly connected to the outside of the side rods. Two folding supports are provided, and the folding supports are equidistantly arranged between the support frames. The four corners of the folding supports are respectively fixedly connected with the corresponding sliders. A plurality of lithium batteries are provided, and the lithium batteries are equidistantly arranged above the corresponding folding supports. A plurality of sleeves are provided, and the sleeves are respectively sleeved on the outside of the bottom of the corresponding lithium batteries. A plurality of connecting cylinders are provided, and the connecting cylinders are respectively arranged between the corresponding sleeves. The connecting cylinders are slidingly connected to the outside of the corresponding support columns. Rotating blocks are equidistantly and rotatably connected inside the side plates. The sleeves are respectively fixedly connected with the corresponding rotating blocks. A plurality of bottom plates are provided, and the bottom plates are respectively fixedly connected between the corresponding side plates. Connecting rods are fixedly connected to the bottom of the bottom plates, and the bottom ends of the connecting rods are fixedly connected with the corresponding folding supports.

[0006] Preferably, the opposite sides of the support frame are equidistantly and fixedly connected with receiving rods, and sleeves are fixedly connected between the top of the folding support and the corresponding side plate. The sleeves are slidingly connected to the outside of the corresponding receiving rods.

[0007] Preferably, universal wheels are installed on the two sides of the bottom of the support frame.

[0008] Preferably, explosion-proof valves are installed on the top of the lithium battery.

[0009] Preferably, the opposite sides of the top of the support frame are fixedly connected with slide cylinders at equal distances, the top of the support frame is provided with a baffle, the bottom of the baffle is provided with a long rod at equal distances, the two ends of the long rod are respectively slidably inserted into the corresponding slide cylinders, the bottom of the baffle is fixedly connected with a U-shaped support at equal distances, and the bottom of the U-shaped support is fixedly connected with the corresponding long rod on the outer side.

[0010] Preferably, a threaded rod is arranged between the support frames, one end of the threaded rod is fixedly connected with a guide rod, one end of the guide rod is rotatably connected with the corresponding support frame through a bearing, a movable block is slidably connected to the outer side of the guide rod, a threaded cylinder is threadedly connected to the outer side of the threaded rod, and an adjusting block is fixedly connected to the outer side of the threaded cylinder.

[0011] Preferably, one end of the guide rod away from the threaded rod is fixedly connected with a hand wheel.

[0012] Preferably, the opposite sides of the lithium battery are provided with a baffle rod, the two ends of the baffle rod are fixedly connected with an adjusting arm, and one end of the adjusting arm is rotatably connected with the corresponding side plate through a pin.

[0013] Preferably, the folding support comprises upper rotating rods, lower rotating rods, side shafts and central shafts, the bottom of the support column is provided with the upper rotating rods and the lower rotating rods at equal distances, the bottom of the support column is provided with the side shafts at equal distances, the two ends of the upper rotating rods and the lower rotating rods are rotatably connected to the outer sides of the corresponding side shafts through bearings, the bottom of the support column is provided with the central shafts at equal distances, the centers of the upper rotating rods and the lower rotating rods are rotatably connected to the outer sides of the corresponding central shafts through bearings, the bottom ends of the connecting rods are fixedly connected with one end of the corresponding central shaft, the top of the movable block and the adjusting block are fixedly connected with one end of the corresponding central shaft, and the bottom of the sliding block is fixedly connected with one end of the corresponding side shaft.

[0014] Preferably, the two sides of the baffle perpendicular to the support frame are provided as inclined surfaces.

[0015] Preferably, the opposite ends of the support column are fixedly sleeved with reinforcing rings, and one side of the reinforcing ring is fixedly connected with the corresponding support frame.

[0016] Compared with the related art, the energy storage battery with the explosion-proof function has the following beneficial effects:

[0017] 1. The energy storage battery with the explosion-proof function can store multiple lithium batteries, increase the energy storage capacity, and make the sleeve shell drive the lithium battery to tilt by rotating the baffle rod and staggering the lithium battery, so that the lithium battery is more convenient and labor-saving when taking and placing.

[0018] 2. The energy storage battery with explosion-proof function can adjust the folding distance between the lithium batteries by rotating the threaded rod when the heat dissipation of the lithium batteries cannot meet the requirements, adjust the distance between the lithium batteries, increase the heat dissipation between the lithium batteries, avoid the safety hazards caused by the high temperature of the lithium batteries due to slow heat dissipation, and fold the folding support to make the lithium batteries close to each other and reduce the occupied space under the condition of no charging or sufficient heat dissipation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A preferred embodiment structure diagram of the energy storage battery with explosion-proof function provided by the application is shown in the figure.

[0020] Figure 2 A structure diagram of the baffle is shown in the figure. Figure 1

[0021] Figure 3 A structure diagram of the support frame is shown in the figure. Figure 1

[0022] A structure enlarged diagram of the A area is shown in the figure. Figure 4 Figure 3 A structure diagram of the lithium battery is shown in the figure.

[0023] Figure 5 Figure 1 A structure diagram of the sleeve is shown in the figure.

[0024] Figure 6 A structure diagram of the folding support is shown in the figure. Figure 1

[0025] Figure 7 Figure 1

[0026] 1, support frame; 2, baffle; 3, folding support; 4, lithium battery; 5, sleeve; 6, adjusting arm; 7, universal wheel; 8, explosion-proof valve; 9, sleeve; 10, U-shaped support; 11, long rod; 12, sliding cylinder; 13, receiving rod; 14, side rod; 15, sliding block; 16, support column; 17, threaded rod; 18, adjusting block; 19, threaded cylinder; 20, guide rod; 21, movable block; 22, hand wheel; 23, connecting rod; 24, blocking rod; 25, side plate; 26, rotating block; 27, connecting cylinder; 28, bottom plate; 31, upper rotating rod; 32, lower rotating rod; 33, side shaft; 34, center shaft; 35, reinforcing ring. DETAILED DESCRIPTION

[0027] ​​​​​​In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0028] The specific implementation of the present application is described in detail below in combination with specific embodiments.

[0029] Please refer to Figures 1 to 7 , the embodiment of the present application provides a storage battery with explosion-proof function, the storage battery with explosion-proof function comprises: support frame 1, folding support 3, lithium battery 4, shell 5, side rod 14, connecting barrel 27 and bottom plate 28, the support frame 1 is provided with two, the support column 16 is equidistantly arranged between the support frames 1, and the opposite ends of the support column 16 are fixedly connected with the corresponding support frames 1, the side rod 14 is provided with a plurality of, the side rod 14 is equidistantly fixedly connected in the corresponding support frame 1, and the outer side of the side rod 14 is slidably connected with the sliding block 15, the folding support 3 is provided with two, the folding supports 3 are equidistantly arranged between the support frames 1, and the four corners of the folding support 3 are respectively fixedly connected with the corresponding sliding blocks 15, the lithium battery 4 is provided with a plurality of, the lithium batteries 4 are equidistantly arranged above the corresponding folding supports 3, the shell 5 is provided with a plurality of, the shells 5 are respectively sleeved outside the bottom of the corresponding lithium battery 4, the connecting barrel 27 is provided with a plurality of, the connecting barrels 27 are respectively arranged between the corresponding shells 5, the connecting barrels 27 are slidably connected outside the corresponding support columns 16, the inner side of the side plate 25 is rotatably connected with the rotating block 26, and the two sides of the shell 5 are respectively fixedly connected with the corresponding rotating blocks 26, the bottom plate 28 is provided with a plurality of, the bottom plates 28 are respectively fixedly connected between the corresponding side plates 25, the bottom of the bottom plate 28 is fixedly connected with the connecting rod 23, and the bottom end of the connecting rod 23 is fixedly connected with the corresponding folding support 3.

[0030] It should be noted that: the plurality of lithium batteries 4 between the support frames 1 are placed in the corresponding shell 5, the lithium batteries 4 can be connected in series to form a lithium battery 4 group, and the shell 5 outside the lithium battery 4 can rotate along the rotating block 26 to drive the lithium battery 4 to tilt, so that the lithium battery 4 can be more conveniently taken and placed.

[0031] In the embodiment of the present application, please refer to Figure 1 , Figure 3 , Figure 5 and Figure 6 , the opposite sides of the support frame 1 are equidistantly fixedly connected with the receiving rod 13, the sleeve 9 is fixedly connected between the corresponding side plates 25 on the top of the folding support 3, and the sleeve 9 is slidably connected outside the corresponding receiving rod 13.

[0032] It should be noted that: the receiving rod 13 can assist the support of the sleeve 9 to the side plate 25, when the distance between the sleeve 5 increases, the sleeve 9 on the side plate 25 can also slide along the outside of the receiving rod 13, so that the sleeve 5 is more stable when adjusting;

[0033] In the embodiment of the application, please refer to Figure 1 and Figure 2 The support frame 1 is provided with universal wheels 7 on both sides of the bottom;

[0034] It should be noted that: the support frame 1 is convenient to move and adjust;

[0035] In the embodiment of the application, please refer to Figure 1 The lithium battery 4 is provided with an explosion-proof valve 8 on the top;

[0036] It should be noted that: the battery shell of each lithium battery 4 is provided with an explosion-proof valve 8, which can be damaged in time when the pressure is too high, so as to release the pressure inside the battery and prevent the explosion of the lithium battery 4 group in thermal runaway;

[0037] In the embodiment of the application, please refer to Figure 1 、 Figure 2 and Figure 3 The support frame 1 is provided with a baffle 2 on the top, the baffle 2 is provided with a long rod 11 at equal intervals on the bottom, the long rod 11 is respectively and slidably connected with the corresponding slide cylinder 12 at both ends, the baffle 2 is provided with a U-shaped support 10 at equal intervals on the bottom, and the U-shaped support 10 is respectively and fixedly connected to the outer side of the corresponding long rod 11 on both sides of the bottom;

[0038] It should be noted that: the top of the support frame 1 is provided with a baffle 2, which can reduce the dust falling on the lithium battery 4 during long-term storage, and protect the upper part of the lithium battery 4, when the distance between the support frames 1 increases, the two ends of the long rod 11 can also slide in the corresponding slide cylinder 12, so as not to form an obstacle;

[0039] In the embodiment of the application, please refer to Figure 3 and Figure 4 The support frame 1 is provided with a threaded rod 17, one end of the threaded rod 17 is fixedly connected with a guide rod 20, one end of the guide rod 20 is rotatably connected with the corresponding support frame 1 through a bearing, the guide rod 20 is slidably connected with a movable block 21 on the outside, the threaded rod 17 is threadedly connected with a threaded cylinder 19 on the outside, the threaded cylinder 19 is fixedly connected with an adjusting block 18 on the outside, and the adjusting block 18 and the movable block 21 are fixedly connected with the corresponding folding support 3 on the top;

[0040] It needs to be explained that: by rotating the guide rod 20 to drive the threaded rod 17 to rotate, so that the threaded cylinder 19 drives the adjusting block 18 to move horizontally, the distance between the movable block 21 and the adjusting block 18 is adjusted, so that the length of the folding support 3 is adjusted;

[0041] In the embodiment of the application, please refer to Figure 3 and Figure 4 , the end of the guide rod 20 away from the threaded rod 17 is fixedly connected with a hand wheel 22;

[0042] It needs to be explained that: by rotating the hand wheel 22 to drive the threaded rod 17 to rotate, it is more labor-saving and convenient when adjusting;

[0043] In the embodiment of the application, please refer to Figure 5 and Figure 6 , the side away from the lithium battery 4 is provided with a blocking rod 24, the two ends of the blocking rod 24 are fixedly connected with adjusting arms 6, and one end of the adjusting arm 6 is rotatably connected with the corresponding side plate 25 through a pin;

[0044] It needs to be explained that: the blocking rod 24 can be blocked on one side of the lithium battery 4 after the lithium battery 4 is put into the sleeve shell 5, so as to avoid that the lithium battery 4 and the sleeve shell 5 are inclined to rotate without external force, when the blocking rod 24 is rotated upward, the corresponding lithium battery 4 can be separated, the sleeve shell 5 is rotated around the corresponding rotating block 26, the internal lithium battery 4 is inclined, and the lithium battery 4 between the supporting frames 1 is more convenient to take and place;

[0045] In the embodiment of the application, please refer to Figure 1 , Figure 4 and Figure 7 , the folding support 3 comprises upper rotating rods 31, lower rotating rods 32, side shafts 33 and center shafts 34, the bottom of the supporting column 16 is provided with the upper rotating rods 31 and the lower rotating rods 32 at equal intervals, the bottom of the supporting column 16 is provided with the side shafts 33 at equal intervals on both sides, the two ends of the upper rotating rod 31 and the lower rotating rod 32 are rotatably connected outside the corresponding side shaft 33 through bearings respectively, the bottom of the supporting column 16 is provided with the center shafts 34 at equal intervals, the center of the upper rotating rod 31 and the lower rotating rod 32 is rotatably connected outside the corresponding center shaft 34 through a bearing, the bottom end of the connecting rod 23 is fixedly connected with one end of the corresponding center shaft 34, the top of the movable block 21 and the adjusting block 18 is fixedly connected with one end of the corresponding center shaft 34, and the bottom of the sliding block 15 is fixedly connected with one end of the corresponding side shaft 33;

[0046] It should be noted that: folding support 3 is composed of a plurality of mutually rotating upper rotating rod 31 and lower rotating rod 32, upper rotating rod 31 and lower rotating rod 32 are arranged alternately, upper rotating rod 31 is rotatably connected with corresponding lower rotating rod 32 through center shaft 34, and the end of adjacent upper rotating rod 31 and lower rotating rod 32 is rotatably connected through side shaft 33, so that when the threaded rod 17 rotates, the outer threaded cylinder 19 drives the adjusting block 18 to move horizontally, adjusts the distance between the adjusting block 18 and the movable block 21, thereby adjusting the included angle of the upper rotating rod 31 and the lower rotating rod 32 when they are staggered, thereby adjusting the overall length of the folding support 3 by driving each other between the upper rotating rod 31 and the lower rotating rod 32, further adjusting the distance between the bottom plate 28 through the connecting rod 23 according to the change of the distance between each center shaft 34 when the folding support 3 is adjusted, thereby adjusting the distance between the shell 5 and the lithium battery 4;

[0047] In the embodiment of the application, please refer to Figure 1 And Figure 2 The two sides of the baffle 2 perpendicular to the support frame 1 are inclined.

[0048] It should be noted that: the two sides of the baffle 2 are inclined, which can avoid dust accumulation on the top of the baffle 2.

[0049] In the embodiment of the application, please refer to Figure 4 The opposite ends of the support column 16 are sleeved and fixed with reinforcing rings 35, and the reinforcing rings 35 are fixedly connected with the corresponding support frames 1 on one side.

[0050] It should be noted that: the reinforcing ring 35 can enhance the stability of the connecting part of the support column 16.

[0051] The working principle of the energy storage battery with explosion-proof function provided by the application is as follows: the plurality of lithium batteries 4 between the support frames 1 are placed in the corresponding sleeve shells 5, and by being connected in series with each other, the lithium batteries 4 can form a lithium battery group 4, the stop rod 24 can be blocked on one side of the lithium battery 4 after the lithium battery 4 is placed in the sleeve shell 5, so as to avoid that the lithium battery 4 and the sleeve shell 5 are tilted in the case where there is no external force, when the stop rod 24 is rotated upward, the stop rod 24 can be separated from the corresponding lithium battery 4, so as to rotate the sleeve shell 5 around the corresponding rotating block 26, drive the lithium battery 4 in the sleeve shell 5 to be tilted, and make the lithium battery 4 between the support frames 1 more convenient to take and place, the battery shell of each lithium battery 4 is provided with an explosion-proof valve 8, which can be damaged in time when the pressure is too high, so as to release the pressure in the battery, prevent the lithium battery group 4 from exploding in the case of thermal runaway, when the threaded rod 17 is rotated, the threaded cylinder 19 outside the threaded rod 17 drives the adjusting block 18 to move horizontally, so as to adjust the distance between the adjusting block 18 and the movable block 21, thereby adjusting the included angle between the upper rotating rod 31 and the lower rotating rod 32 when the upper rotating rod 31 and the lower rotating rod 32 are staggered, so as to adjust the overall length of the folding support 3 by driving the upper rotating rod 31 and the lower rotating rod 32, and further adjust the distance between the bottom plates 28 by the connecting rod 23 according to the change of the distance between the center shafts 34 of the folding support 3, so as to adjust the distance between the sleeve shell 5 and the lithium battery 4, so that the distance between the lithium batteries 4 can be increased when the lithium batteries 4 are charged, the heat dissipation between the lithium batteries 4 can be increased, the safety hidden danger caused by the high temperature of the lithium batteries 4 due to slow heat dissipation can be avoided, and the folding support 3 can be folded to make the lithium batteries 4 close to each other in the case of no charging or sufficient heat dissipation, so that the occupied space is reduced.

[0052] The above description is only an embodiment of the application, and does not limit the patent scope of the application, and any equivalent structure or equivalent process transformation according to the content of the specification and the drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the application.

Claims

1. An energy storage battery with explosion-proof function, characterized in that, Include: Support frame (1), the support frame (1) is provided with two, the support column (16) is equidistantly arranged between the support frame (1), and the opposite end of the support column (16) is fixedly connected with the corresponding support frame (1); Side rod (14), the side rod (14) is provided with a plurality of, the side rod (14) is equidistantly fixedly connected in the corresponding support frame (1) respectively, and the outer side of the side rod (14) is slidably connected with the sliding block (15); Folding support (3), the folding support (3) is provided with two, the folding support (3) is equidistantly arranged between the support frame (1), and the four corners of the folding support (3) are fixedly connected with the corresponding sliding block (15) respectively; Lithium battery (4), the lithium battery (4) is provided with a plurality of, the lithium battery (4) is equidistantly arranged above the corresponding folding support (3) respectively; Shell (5), the shell (5) is provided with a plurality of, the shell (5) is respectively sleeved on the bottom outer side of the corresponding lithium battery (4); Side plate (25), the opposite side of the lithium battery (4) is provided with a stop rod (24), the two ends of the stop rod (24) are fixedly connected with the adjusting arm (6), and one end of the adjusting arm (6) is rotatably connected with the corresponding side plate (25) through a pin; Connecting barrel (27), the connecting barrel (27) is provided with a plurality of, the connecting barrel (27) is arranged between the corresponding shell (5) respectively, the connecting barrel (27) is slidably connected on the outer side of the corresponding support column (16), the inner side of the side plate (25) is rotatably connected with the rotating block (26) equidistantly, and the two sides of the shell (5) are fixedly connected with the corresponding rotating block (26) respectively; Bottom plate (28), the bottom plate (28) is provided with a plurality of, the bottom plate (28) is fixedly connected between the corresponding side plate (25) respectively, the bottom plate (28) is fixedly connected with the connecting rod (23) at the bottom, and the bottom end of the connecting rod (23) is fixedly connected with the corresponding folding support (3).

2. The energy storage battery with explosion-proof function according to claim 1, characterized in that, The opposite side of the support frame (1) is fixedly connected with the receiving rod (13) equidistantly, the sleeve (9) is fixedly connected between the corresponding side plate (25) on the top of the folding support (3), and the sleeve (9) is slidably connected on the outer side of the corresponding receiving rod (13).

3. The energy storage battery with explosion-proof function according to claim 1, characterized in that, The bottom of the support frame (1) is provided with universal wheels (7) on both sides.

4. The energy storage battery with explosion-proof function according to claim 1, characterized in that, The top of the lithium battery (4) is provided with explosion-proof valves (8).

5. The energy storage battery with explosion-proof function according to claim 1, characterized in that, The opposite side of the support frame (1) is fixedly connected with the sliding barrel (12) equidistantly on the top, the support frame (1) is provided with a baffle (2) on the top, the baffle (2) is provided with a long rod (11) equidistantly at the bottom, the two ends of the long rod (11) are respectively slidably inserted into the corresponding sliding barrel (12), the baffle (2) is fixedly connected with the U-shaped support (10) equidistantly at the bottom, and the two sides of the U-shaped support (10) are fixedly connected with the corresponding long rod (11) on the outer side respectively.

6. The energy storage battery with explosion-proof function according to claim 1, characterized in that, Threaded rods (17) are arranged between the support frames (1), one end of each threaded rod (17) is fixedly connected with a guide rod (20), one end of each guide rod (20) is rotatably connected with the corresponding support frame (1) through a bearing, the outer side of each guide rod (20) is slidably connected with a movable block (21), the outer side of each threaded rod (17) is threadedly connected with a threaded cylinder (19), the outer side of each threaded cylinder (19) is fixedly connected with an adjusting block (18), and the top of each adjusting block (18) and movable block (21) is fixedly connected with the corresponding folding support (3).

7. The energy storage battery with explosion-proof function according to claim 6, characterized in that, One end of each guide rod (20) away from the threaded rod (17) is fixedly connected with a hand wheel (22). 8.The energy storage battery with explosion-proof function of claim 6, wherein, The folding support (3) comprises upper rotating rods (31), lower rotating rods (32), side shafts (33) and central shafts (34), the bottom of each support column (16) is equally provided with an upper rotating rod (31) and a lower rotating rod (32), the bottom of each support column (16) is equally provided with a side shaft (33) on both sides, both ends of each upper rotating rod (31) and lower rotating rod (32) are rotatably connected to the outer side of the corresponding side shaft (33) through a bearing, the bottom of each support column (16) is equally provided with a central shaft (34), the center of each upper rotating rod (31) and lower rotating rod (32) is rotatably connected to the outer side of the corresponding central shaft (34) through a bearing, the bottom end of each connecting rod (23) is fixedly connected with one end of the corresponding central shaft (34), and the top of each movable block (21) and adjusting block (18) is fixedly connected with one end of the corresponding central shaft (34). 9.The energy storage battery with explosion-proof function of claim 5, wherein, The two sides of the baffle (2) perpendicular to the support frame (1) are both provided as inclined surfaces. 10.The energy storage battery with explosion-proof function of claim 1, wherein, The opposite ends of each support column (16) are both sleeved and fixedly connected with a reinforcing ring (35), and one side of each reinforcing ring (35) is fixedly connected with the corresponding support frame (1). The opposite ends of each support column (16) are both sleeved and fixedly connected with a reinforcing ring (35), and one side of each reinforcing ring (35) is fixedly connected with the corresponding support frame (1).

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