Indoor movable coating shed capable of descending, stretching and retracting

Abstract

The utility model relates to an indoor movable coating shed capable of descending and stretching, which is used for ship coating and comprises a shed roof assembly and a shed body assembly. The shed top assembly covers the shed body assembly, and a coating space used for containing a ship is defined by the shed top assembly and the shed body assembly. The shed body assembly comprises a plurality of lifting stand columns, the tops of the lifting stand columns are connected to the shed top assembly, and the lifting stand columns are distributed on the first side and the second side, opposite to each other, of the shed top assembly at intervals. A telescopic part is arranged between every two adjacent lifting stand columns located on the same side. At least part of the lifting stand columns can move in the horizontal direction, and the shed roof assembly and the telescopic part can deform along with movement of at least part of the lifting stand columns so that the length of the coating space in the horizontal direction can be changed. The shed roof assembly and the telescopic part can deform along with lifting of the multiple lifting stand columns so as to change the height of the coating space in the vertical direction. The indoor movable coating shed capable of descending and stretching out and drawing back can adapt to more coating scenes, the coating time is saved, and the working efficiency of ship coating is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shipbuilding, in particular to an indoor mobile painting shed that can be lowered and telescoped. Background Art

[0002] When building a ship, a painting shed needs to be set up to prevent paint from leaking out and polluting the indoor environment. Traditional indoor painting operations are usually carried out in a fixed space. Most of the existing painting sheds are fixed, occupying a large area, not easy to move, and unable to adapt to the size of the ship type. Different-sized painting sheds need to be built one by one for different ship types, resulting in low space utilization. In particular, for some specific application scenarios, when the painting work area needs to be adjusted or moved, the painting shed needs to be rebuilt, consuming time and resources.

[0003] It can be seen that the existing technology has problems of low space utilization and low working efficiency. Summary of the Utility Model

[0004] The utility model provides an indoor mobile painting shed that can be lowered and telescoped, which solves the problems of low space utilization and low working efficiency in the existing technology.

[0005] The utility model provides an indoor mobile painting shed for ship painting, including a shed top assembly and a shed body assembly; the shed top assembly covers the shed body assembly and encloses to form a painting space for accommodating a ship;

[0006] The shed body assembly includes a plurality of lifting columns. The tops of the plurality of lifting columns are connected to the shed top assembly, and the plurality of lifting columns are spaced apart on the first side and the second side opposite to each other of the shed top assembly;

[0007] A telescopic part is arranged between two adjacent lifting columns on the same side; at least some of the plurality of lifting columns can move horizontally, and the shed top assembly and the telescopic part can deform following the movement of at least some of the lifting columns to change the length of the painting space in the horizontal direction;

[0008] The shed top assembly and the telescopic part can deform or lift following the lifting of the plurality of lifting columns to change the height of the painting space in the vertical direction.

[0009] The indoor mobile painting shed with retractable and lowerable structure of the present utility model enables the indoor mobile painting shed with retractable and lowerable structure to extend and contract in the horizontal and vertical directions through lifting columns, a telescopic part arranged between the lifting columns, and a shed top assembly that can deform following the deformation of the lifting columns and the telescopic part, so as to change the length and height of the painting space. Thus, the indoor mobile painting shed with retractable and lowerable structure can be applied to the spraying of ships of different sizes without repeated disassembly and assembly, adapt to more painting scenarios, save painting time, and improve the working efficiency of ship painting. Moreover, when not in use, the indoor mobile painting shed with retractable and lowerable structure of the present utility model can be telescoped and deformed to the minimum painting space and stored in a smaller space, saving the storage space of the painting shed and further improving the space utilization rate.

[0010] Optionally, each of the multiple lifting columns includes a first vertical rod and a second vertical rod. The bottom of the first vertical rod is slidably connected to the ground, the top of the second vertical rod is connected to the shed body assembly. A sliding groove is provided on the side wall of the first vertical rod, and the sliding groove extends along the length direction of the first vertical rod. A sliding block is provided on the side wall of the second vertical rod, and the second vertical rod is slidably connected to the first vertical rod through the sliding block and the sliding groove, so that the lifting column can be lifted and lowered.

[0011] Optionally, the shed body assembly further includes a fixed bolt. The first vertical rod is provided with a plurality of first positioning holes, and the second vertical rod is provided with a plurality of second positioning holes. The fixed bolt is inserted into the first positioning hole and the second positioning hole to position the lifting column at the target height.

[0012] Optionally, the target height includes at least one of the following: 7m, 10m, 13m.

[0013] In the embodiment of the present utility model, the height of the indoor mobile painting shed with retractable and lowerable structure can be adjusted to 7m through the fixed bolt, the first positioning hole and the second positioning hole to meet the indoor painting requirements of short-distance transportation and tourist sightseeing ships sailing in small inland rivers, lakes and other waters with a molded height of 7m and below. The height of the indoor mobile painting shed with retractable and lowerable structure can be adjusted to 10m to meet the indoor painting requirements of medium-sized inland river, lake and other waters with a molded height of 10m and below. The height of the indoor mobile painting shed with retractable and lowerable structure can also be adjusted to 13m to meet the indoor painting requirements of medium and large inland rivers, as well as ocean-going and coastal cargo ships and passenger ships with a specification of 10m to 13m.

[0014] Optionally, the telescopic part includes a first telescopic member and a second telescopic member;

[0015] Both ends of the first telescopic member are respectively connected to two adjacent first vertical rods on the same side, and both ends of the second telescopic member are respectively connected to two adjacent second vertical rods on the same side;

[0016] The first telescopic member and the second telescopic member are arranged offset in the lifting direction of the lifting column.

[0017] Optionally, both the first telescopic member and the second telescopic member include a plurality of telescopic units connected together;

[0018] The shape of the telescopic unit is at least one of the following:

[0019] Rhombus, oval, V-shaped, polygon.

[0020] Optionally, the roof assembly includes a plurality of roof brackets arranged at intervals, and both ends of some of the plurality of roof brackets are respectively connected to the tops of two relatively arranged lifting columns;

[0021] Both ends of the other part of the plurality of roof brackets are respectively connected to two relatively arranged telescopic parts.

[0022] Optionally, the retractable indoor mobile painting shed further includes a guide rail, the guide rail extends in the horizontal direction, and rollers are provided at the bottoms of the lifting columns and the telescopic parts, and the rollers are installed on the guide rail so that: the shed body assembly slides along the guide rail.

[0023] Optionally, the retractable indoor mobile painting shed further includes a painting shed cloth, and the painting shed cloth covers the outside of the roof assembly and the shed body assembly.

[0024] Optionally, the retractable indoor mobile painting shed further includes a driving part, and the driving part is connected to at least part of the lifting column or the telescopic part to drive the shed body assembly to move in the horizontal direction. Description of the Drawings

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the retractable indoor mobile painting shed according to an embodiment of the present invention. Among them, the painting shed cloth covers the outside of the roof assembly and the shed body assembly;

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the retractable indoor mobile painting shed according to an embodiment of the present invention;

[0027] Figure 3 It is a partial side view structural schematic diagram of the retractable indoor mobile painting shed according to an embodiment of the present invention;

[0028] Figure 4 It is a partial structural schematic diagram of the retractable indoor mobile painting shed according to an embodiment of the present invention;

[0029] Figure 5 It is a three-dimensional structural schematic diagram of the lifting column in the retractable indoor mobile painting shed according to an embodiment of the present invention;

[0030] Figure 6Schematic cross-sectional structure diagram of the lifting column in the indoor mobile painting shed that can be lowered and telescoped according to an embodiment of the present utility model;

[0031] Figure 7 Schematic structure diagram of the lifting column and the telescopic part in the indoor mobile painting shed that can be lowered and telescoped according to an embodiment of the present utility model;

[0032] Figure 8 Schematic structure diagram of the telescopic part after being compressed in the indoor mobile painting shed that can be lowered and telescoped according to an embodiment of the present utility model;

[0033] Figure 9 Schematic structure diagram of the telescopic part being compressed and the lifting column rising in the indoor mobile painting shed that can be lowered and telescoped according to an embodiment of the present utility model.

[0034] Explanation of reference numerals:

[0035] 100: Indoor mobile painting shed that can be lowered and telescoped;

[0036] 101: Roof assembly; 102: Roof support; 103: Shed body assembly; 104: Painting shed cloth;

[0037] 110: Lifting column; 111: First vertical rod; 112: Second vertical rod; 113: Chute; 114: Slide block; 115: Fixed bolt; 116: First positioning hole; 120: Telescopic part; 121: First telescopic member; 122: Second telescopic member; 123: Telescopic unit;

[0038] 131: Guide rail; 132: Roller. Detailed implementation manners

[0039] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present utility model, and detailed implementation manners and specific operation processes are given, but the protection scope of the present utility model is not limited to the following embodiments.

[0040] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0042] The terms "first", "second", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0043] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0044] To make the objectives, technical solutions, and advantages of the present utility model clearer, the following will further describe in detail the implementation manners of the present utility model with reference to the accompanying drawings.

[0045] Please refer to Figures 1 to 3 , the present utility model provides a retractable indoor mobile painting shed 100 for ship painting to prevent paint leakage and pollute the indoor environment. The retractable indoor mobile painting shed 100 includes a shed top assembly 101 and a shed body assembly 103; the shed top assembly 101 covers the shed body assembly 103 and encloses a painting space for accommodating a ship. In one implementation manner, the retractable indoor mobile painting shed 100 is erected on the ground, and thus the shed top assembly 101 and the shed body assembly 103 enclose the above-mentioned painting space on the ground. In other alternative implementation manners, the retractable indoor mobile painting shed 100 can also be erected on a workbench at a certain height from the ground. Thus, the shed top assembly 101 and the shed body assembly 103 enclose the above-mentioned painting space on this workbench.

[0046] The shed body assembly 103 includes a plurality of lifting columns 110. The tops of the plurality of lifting columns 110 are connected to the shed top assembly 101, and the plurality of lifting columns 110 are spaced apart and distributed on the first side and the second side opposite to each other of the shed top assembly 101. Among them, the first side and the second side can be understood as two parallel sides of the shed top assembly 101. The plurality of lifting columns 110 are arranged in two rows at intervals, and each row is correspondingly arranged on one side of the shed top assembly 101.

[0047] Further, a telescopic part 120 is provided between two adjacent lifting columns 110 on the same side. At least some of the multiple lifting columns 110 can move horizontally. The roof assembly 101 and the telescopic part 120 can deform following the movement of at least some of the lifting columns 110, so as to change the length of the painting space in the horizontal direction. Among them, the horizontal direction can be parallel to the length direction of the roof assembly 101. At this time, the movement of the lifting columns 110 can change the length of the painting space. In other alternative embodiments, it can also be parallel to the width direction of the roof assembly 101. At this time, the movement of the lifting columns 110 can change the width of the painting space.

[0048] Among them, the fact that at least some of the lifting columns 110 can move horizontally can be understood as: some of the multiple lifting columns 110 are movable, and the rest are fixed. For example, the last lifting column 110 among the multiple lifting columns 110 is fixed to the ground to position the entire retractable indoor mobile painting shed. The rest of the lifting columns 110 can move horizontally. When the rest of the lifting columns 110 all move close to the last lifting column 110 to the limit position, the retractable indoor mobile painting shed 100 can be understood as being in a folded storage state. The folded storage painting shed can not only effectively save space and improve the painting operation efficiency during ship manufacturing, but also protect the environment in the workshop and the safety and health of workers. In one embodiment, the retractable indoor mobile painting shed 100 of the embodiment of the present utility model can change the size of the painting shed by descending and contracting. The total unfolded size: length is 60m, height is 13m, and width is 13m.

[0049] Further, the roof assembly 101 and the telescopic part 120 can deform or lift following the lifting of the multiple lifting columns 110, so as to change the height of the painting space in the vertical direction.

[0050] The present utility model does not limit the materials of the roof assembly 101, the lifting columns 110, and the telescopic part 120. For example, they can be made of metal materials or non-metal materials. In one embodiment, aluminum alloy materials can be used. In other alternative embodiments, stainless steel materials can also be used.

[0051] The retractable indoor mobile painting shed 100 of the present utility model enables the retractable indoor mobile painting shed 100 to extend and contract in the horizontal and vertical directions through the lifting columns 110, the telescopic part 120 arranged between the lifting columns, and the shed roof assembly 101 that can deform following the deformation of the lifting columns 110 and the telescopic part 120, so as to change the length and height of the painting space. Thus, the retractable indoor mobile painting shed 100 can be applied to the spraying of ships of different sizes without repeated disassembly and assembly, adapt to more painting scenarios, save painting time, and improve the working efficiency of ship painting. Moreover, when not in use, the retractable indoor mobile painting shed of the present utility model can be retracted into a smaller space by deforming and telescoping to the smallest painting space, saving the storage space of the painting shed and further improving the space utilization rate.

[0052] In one embodiment, as Figure 1 shown, the retractable indoor mobile painting shed 100 further includes a painting shed cloth 104, and the painting shed cloth 104 covers the outside of the shed roof assembly 101 and the shed body assembly 103. The material of the painting shed cloth 104 is not limited, for example, it can be a plastic film cloth, a canvas, a waterproof cloth, etc.

[0053] In one embodiment, as Figure 2 shown, the shed roof assembly 101 includes a plurality of shed roof supports 102 arranged at intervals. The two ends of some of the shed roof supports 102 among the plurality of shed roof supports 102 are respectively connected to the tops of two relatively arranged lifting columns 110, and the two ends of the other part of the shed roof supports 102 among the plurality of shed roof supports 102 are respectively connected to two relatively arranged telescopic parts 120. Or it can be understood that the plurality of shed roof supports 102 are arranged at intervals along the moving direction of the lifting columns 110, and the two ends of the shed roof supports 102 are connected to the tops of the lifting columns 110 (such as the second vertical column 112 mentioned later) or the tops of the telescopic parts 120 (such as the second telescopic member 122 mentioned later). Or it can be understood that each shed roof support 102 is independent of the other shed roof supports 102 and independently moves following the corresponding lifting column 110 or telescopic part 120. Among them, the shape of the shed roof support 102 is not limited, for example, it can be triangular, semi-circular, rectangular, linear, etc. Among them, the triangular or semi-circular structure can enable the painting shed cloth 104 to cover it and make the shed roof assembly 101 form a pointed top and a slope, playing a role in guiding rainwater.

[0054] Those skilled in the art can understand that the shed roof assembly 101 can also adopt a telescopic structure. For example, its structure can be the same as that of the telescopic part 120, or other telescopic structures can also be adopted. As long as it is a structure that can deform following the movement of the lifting column, it does not deviate from the scope of the embodiments of the present utility model.

[0055] Furthermore, in one embodiment, asFigure 2 and Figure 3 As shown in Figure 3 , the retractable indoor mobile painting shed 100 further includes a guide rail 131. The guide rail 131 extends in the horizontal direction. Rollers 132 are provided at the bottom of the lifting columns 110 and the bottom of the telescopic part 120. The rollers 132 are installed on the guide rail 131 so that the shed body assembly 103 slides along the guide rail 131. In one embodiment, the roller 132 is provided with a locking member. The locking member is connected to the rolling shaft of the roller 132 and can be switched between a locking position and a non-locking position. When the locking member is in the locking position, the roller 132 cannot roll, so as to fix the corresponding telescopic part 120 or the lifting column 110 at the target position. In one embodiment, the guide rail 131 is a detachable guide rail and can be installed and disassembled as needed.

[0056] Further, the retractable indoor mobile painting shed 100 further includes a driving part. The driving part is connected to at least part of the lifting columns 110 to drive at least part of the lifting columns 110 to move in the horizontal direction. Alternatively, the driving part can also be connected to the telescopic part 120. The type of the driving part is not limited. For example, a motor chain drive can be adopted. The motor drives the chain to make the shed body assembly 103 move along the guide rail 131.

[0057] In one embodiment, please refer to Figures 4 to 6 , and in combination with Figure 2 and Figure 3 Understand that each of the plurality of lifting columns 110 includes a first vertical rod 111 and a second vertical rod 112. The bottom of the first vertical rod 111 is slidably connected to the ground. The top of the second vertical rod 112 is connected to the shed body assembly 103. A chute 113 is provided on the side wall of the first vertical rod 111. The chute 113 extends along the length direction of the first vertical rod 111. A slider 114 is provided on the side wall of the second vertical rod 112. The second vertical rod 112 is slidably connected to the first vertical rod 111 through the slider 114 and the chute 113 so that the lifting column 110 can be lifted and lowered.

[0058] The shapes of the chute 113 and the slider 114 are not limited. In one embodiment, the cross-sectional shape of the chute 113 is T-shaped. Correspondingly, the cross-sectional shape of the slider 114 is also T-shaped. In other alternative embodiments, the cross-sectional shapes of the chute 113 and the slider 114 can also be U-shaped, C-shaped, L-shaped, etc. Further, the slider 114 can extend from one end to the other end of the second vertical rod 112 along the length direction of the second vertical rod 112. In other alternative embodiments, the slider 114 can also be provided on a partial vertical rod section of the second vertical rod 112 along the length direction. For example, the number of the sliders 114 can be multiple, and the multiple sliders 114 are arranged at intervals along the length direction of the second vertical rod 112. In one embodiment, the relative sliding of the first vertical rod 111 and the second vertical rod 112 can be executed by a hydraulic system or an electric actuator.

[0059] Further, as Figure 5 shown, the shed body assembly 103 further includes a fixed bolt 115. The first vertical rod 111 is provided with a plurality of first positioning holes 116, and the second vertical rod 112 is provided with a plurality of second positioning holes (not shown in the figure). The fixed bolt is inserted into the first positioning holes 116 and the second positioning holes (not shown in the figure) to position the lifting column 110 at a target height. In one embodiment, the plurality of first positioning holes 116 are arranged at intervals along the extending direction of the first vertical rod 111, and the plurality of second positioning holes are arranged at intervals along the extending direction of the second vertical rod 112. When each second positioning hole matches a different first positioning hole 116, it corresponds to a target height. The number of the first positioning holes 116 and the second positioning holes is not limited. In one embodiment, the number of the first positioning holes 116 is 3, and the number of the second positioning holes is 1. Correspondingly, the target height of the lifting column after the first vertical rod 111 and the second vertical rod 112 are fixed by the fixed bolt 115 can be, for example, 7m, 10m, and 13m.

[0060] In the embodiment of the present utility model, the height of the retractable indoor mobile painting shed 100 can be adjusted to 7m through the fixed bolt 115, the first positioning holes 116 and the second positioning holes to meet the indoor painting requirements of short-distance transportation and tourist sightseeing ships sailing in small inland rivers, lakes and other waters with a type height of 7m and below. The height of the retractable indoor mobile painting shed 100 can be adjusted to 10m to meet the indoor painting requirements of short-distance transportation and tourist sightseeing ships sailing in medium-sized inland rivers, lakes and other waters with a type height of 10m and below. The height of the retractable indoor mobile painting shed 100 can also be adjusted to 13m to meet the indoor painting requirements of medium and large-sized inland rivers, ocean-going and coastal cargo ships and passenger ships with a specification of 10m to 13m. It has the advantages of rich application scenarios and convenient operation.

[0061] In one embodiment, please refer to Figure 4 and Figures 7 to 9 for understanding. The telescopic part 120 includes a first telescopic member 121 and a second telescopic member 122. Two ends of the first telescopic member 121 are respectively connected to two adjacent first vertical rods 111 on the same side, and two ends of the second telescopic member 122 are respectively connected to two adjacent second vertical rods 112 on the same side. Further, in one embodiment, as Figure 4As shown, the first telescopic member 121 and the second telescopic member 122 are arranged in a staggered manner along the lifting direction of the lifting column 110. Or it can be understood that the plane where the first telescopic member 121 is located and the plane where the second telescopic member 122 is located are not the same plane. Such a structure can avoid interference during the lifting process. In other alternative embodiments, the first telescopic member 121 and the second telescopic member 122 can also be located in the same plane, as long as the first telescopic member 121 and the second telescopic member 122 do not interfere or collide at the extreme positions (such as the highest and lowest positions) when following the lifting of the first vertical rod 111 and the second vertical rod 112, it does not deviate from the scope of the embodiments of the present invention.

[0062] Further, both the first telescopic member 121 and the second telescopic member 122 include a plurality of telescopic units 123 connected together, such as Figure 7 shown, the shape of the telescopic unit 123 can be, for example, a rhombus. In other alternative embodiments, it can also be an ellipse, a V shape or a polygon. When the lifting columns 110 approach each other in the horizontal direction, the corresponding first telescopic member 121 and second telescopic member 122 are compressed, as Figure 8 shown, when the lifting column 110 rises, specifically, when the second vertical rod 112 slides upward along the first vertical rod 111, the corresponding second telescopic member 122 follows the second vertical rod 112 to rise, as Figure 9 shown. In one embodiment, taking the rhombus as an example, the telescopic unit 123 includes four connecting rods, and the four connecting rods are connected and enclosed to form a rhombus. Each connecting rod can rotate around the connection point. When the telescopic unit 123 is compressed, the four connecting rods rotate around the connection point and approach each other. Specifically, the upper and lower ends of the rhombus move away from each other, and the left and right ends of the rhombus approach each other.

[0063] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A retractable indoor mobile painting shed for ship painting, characterized in that: It comprises a roof assembly and a body assembly; the roof assembly is covered on the body assembly and encloses a painting space for accommodating the ship; The shed body assembly includes a plurality of lifting columns, the tops of the plurality of lifting columns are connected to the shed roof assembly, and the plurality of lifting columns are spaced and distributed on a first side and a second side of the shed roof assembly that are opposite to each other; A telescopic portion is provided between two adjacent lifting columns located on the same side; at least some of the plurality of lifting columns can move in a horizontal direction, and the roof assembly and the telescopic portion can deform following the movement of at least some of the lifting columns to change the length of the painting space in the horizontal direction; The roof assembly and the telescopic part can be deformed or raised and lowered following the raising and lowering of the plurality of lifting columns, so as to change the height of the painting space in the vertical direction.

2. The indoor movable painting shed capable of descending and retracting according to claim 1 is characterized in that: Each of the plurality of lifting columns comprises a first pole and a second pole, wherein the bottom of the first pole is slidably connected to the ground, the top of the second pole is connected to the shelf assembly, the side wall of the first pole is provided with a slide groove, the slide groove extends along the length direction of the first pole, the side wall of the second pole is provided with a slider, the second pole is slidably connected to the first pole through the slider and the slide groove, so that the lifting column can be raised and lowered.

3. The indoor movable painting shed capable of descending and retracting according to claim 2 is characterized in that: The shelf assembly also includes a fixing pin. The first pole is provided with a plurality of first positioning holes, and the second pole is provided with a plurality of second positioning holes. The fixing pin is inserted into the first positioning holes and the second positioning holes to position the lifting column at a target height.

4. The indoor movable painting shed capable of descending and retracting according to claim 3 is characterized in that: The target height includes at least one of the following: 7m, 10m, 13m.

5. The indoor movable painting shed capable of descending and retracting according to claim 2 is characterized in that: The telescopic portion includes a first telescopic member and a second telescopic member; Two ends of the first telescopic member are respectively connected to two first vertical poles located on the same side and adjacent to each other, and two ends of the second telescopic member are respectively connected to two second vertical poles located on the same side and adjacent to each other; The first telescopic member and the second telescopic member are staggered along the lifting direction of the lifting column.

6. The indoor movable painting shed capable of descending and retracting according to claim 5 is characterized in that: The first telescopic member and the second telescopic member each include a plurality of telescopic units connected together; The shape of the telescopic unit is at least one of the following: Diamond, oval, V-shape, polygon.

7. The indoor movable painting shed capable of descending and retracting according to claim 1 is characterized in that: The roof assembly comprises a plurality of roof brackets arranged at intervals, and two ends of some of the plurality of roof brackets are respectively connected to the tops of two oppositely arranged lifting columns; Two ends of another part of the plurality of roof supports are respectively connected to two oppositely arranged telescopic parts.

8. The indoor movable painting shed capable of descending and retracting according to claim 2 is characterized in that: It also includes a guide rail extending in a horizontal direction. The bottom of the lifting column and the bottom of the telescopic part are both provided with rollers, and the rollers are installed on the guide rail so that: the shelf assembly slides along the guide rail.

9. The indoor movable painting shed capable of descending and retracting according to claim 1 is characterized in that: It also includes a painting shed cloth, and the painting shed cloth cover is arranged outside the shed roof component and the shed body component.

10. The indoor movable painting shed capable of descending and retracting according to claim 1 is characterized in that: It also includes a driving unit, which is connected to at least part of the lifting columns or the telescopic unit to drive the shelf assembly to move in a horizontal direction.

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