Dustproof device

Abstract

The utility model provides a dustproof device. The first dustproof cloth is arranged in the circumferential direction of the supporting frame, the second dustproof cloth is arranged on the top, a sealed space is formed, the first dustproof cloth is provided with a movable face for equipment and / or personnel to pass through, and a first sealing structure is arranged on the side, making contact with the first dustproof cloth, of the movable face. A second sealing structure in sealing fit with the first sealing structure is arranged on the contact side of the first dustproof cloth and the movable face, and the rollers are arranged at the bottom of the supporting frame. According to the dustproof device, due to the fact that the idler wheels are arranged at the bottom of the supporting frame, a worker can conveniently move the dustproof device when the dustproof device needs to be moved, the sealed space can be formed through cooperation of the first dustproof cloth and the second dustproof cloth, and flying dust leakage is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of stone processing, in particular to a dustproof device. Background Art

[0002] Currently, the operating tables of nuclear power plants are made of marble. However, marble will generate a lot of dust during on-site installation. The control room of a nuclear power plant has high requirements for the environment. Therefore, in order to avoid dust affecting the control room of the nuclear power plant, it is usually necessary to build a dust-proof tent to reduce the spread of dust, which is built by temporarily purchasing awnings and snakeskin cloth.

[0003] However, the dustproof tent constructed by using the pergola and snakeskin cloth not only has poor sealing performance, but also has a large volume, making it difficult to move the existing dustproof tent. Therefore, there is an urgent need for a dustproof device that is easy to move and has good sealing performance. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides a dustproof device to solve the problem that the existing temporary dustproof tent not only has poor sealing performance but also is difficult to move.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A dustproof device, comprising: a supporting frame, a first dustproof cloth, a second dustproof cloth and a plurality of rollers;

[0007] The first dustproof cloth is arranged along the circumference of the support frame, and the second dustproof cloth is arranged on the top to form a sealed space;

[0008] The first dustproof cloth is provided with a movable surface for equipment and / or personnel to pass through, and a first sealing structure is provided on the contact side between the movable surface and the first dustproof cloth;

[0009] The contact side of the first dustproof cloth with the movable surface is provided with a second sealing structure which is sealed and matched with the first sealing structure;

[0010] The roller is arranged at the bottom of the supporting frame.

[0011] Preferably, a counterweight rod is provided at the bottom of the first dustproof cloth and the movable surface.

[0012] Preferably, a plurality of movable surfaces are provided in the circumferential direction of the first dustproof cloth.

[0013] Preferably, the first dustproof cloth and / or the second dustproof cloth is made of transparent plastic material.

[0014] Preferably, the first sealing structure is a magnet;

[0015] The second sealing structure is a fixing rod that can be attracted by a magnet.

[0016] Preferably, the support frame is a rectangular structure, and the support frame at least comprises: a first column, a second column, a third column, a fourth column, a first crossbeam, a second crossbeam, a third crossbeam, a fourth crossbeam, a first longitudinal beam, a second longitudinal beam, a third longitudinal beam and a fourth longitudinal beam;

[0017] One end of the first crossbeam is connected to the top of the first column, and the other end is connected to the top of the second column;

[0018] The second crossbeam is arranged below the first crossbeam, one end of the second crossbeam is connected to the first column, and the other end of the second crossbeam is connected to the second column;

[0019] One end of the third crossbeam is connected to the top of the third column, and the other end is connected to the top of the fourth column;

[0020] The fourth cross beam is arranged below the third cross beam, one end of the fourth cross beam is connected to the third column, and the other end of the fourth cross beam is connected to the fourth column;

[0021] One end of the first longitudinal beam is connected to the top of the first column, and the other end is connected to the top of the third column;

[0022] The second longitudinal beam is arranged below the first longitudinal beam, one end of the second longitudinal beam is connected to the first column, and the other end of the second longitudinal beam is connected to the third column;

[0023] One end of the third longitudinal beam is connected to the top of the second column, and the other end is connected to the top of the fourth column;

[0024] The fourth longitudinal beam is arranged below the third longitudinal beam, one end of the fourth longitudinal beam is connected to the second column, and the other end of the fourth longitudinal beam is connected to the fourth column.

[0025] Preferably, the first column, the second column, the third column and the fourth column have the same structure;

[0026] The first column includes: an upper column, a lower column, a first connecting member, a second connecting member and a bolt;

[0027] The lower end of the upper column is clamped with the upper end of the lower column;

[0028] The bolts are used to limit the separation of the upper column and the lower column;

[0029] The first connecting member and the second connecting member are both arranged on the upper column, and the first connecting member is located above the second connecting member;

[0030] The first connecting member is used to connect with the first cross beam and the first longitudinal beam;

[0031] The second connecting member is used to connect with the second cross beam and the second longitudinal beam.

[0032] Preferably, the first crossbeam, the second crossbeam, the third crossbeam and the fourth crossbeam have the same structure;

[0033] The first crossbeam is composed of a plurality of sub-crossbeams.

[0034] Preferably, the first longitudinal beam, the second longitudinal beam, the third longitudinal beam and the fourth longitudinal beam have the same structure;

[0035] The first longitudinal beam is composed of a plurality of sub-longitudinal beams.

[0036] Preferably, the roller is a universal wheel.

[0037] Based on the above-mentioned dustproof device provided by the utility model, a first dustproof cloth is arranged along the circumference of the support frame, and a second dustproof cloth is arranged at the top to form a sealed space, and a movable surface for equipment and / or personnel to pass through is provided on the first dustproof cloth, and a first sealing structure is provided on the contact side of the movable surface with the first dustproof cloth, and a second sealing structure is provided on the contact side of the first dustproof cloth with the movable surface to seal with the first sealing structure, and a roller is arranged at the bottom of the support frame. Through the above-mentioned dustproof device disclosed, since the bottom of the support frame is provided with a roller, it is convenient for the staff to move when it is necessary to move, and a sealed space can be formed by the cooperation of the first dustproof cloth and the second dustproof cloth, which effectively prevents the leakage of flying dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0039] Figure 1 A schematic diagram of the structure of a dustproof device provided in an embodiment of the utility model;

[0040] Figure 2 A schematic diagram of the structure of a support frame provided by an embodiment of the utility model;

[0041] Figure 3 A schematic diagram of the structure of the first column provided in an embodiment of the utility model;

[0042] Figure 4 A schematic diagram of the structure of the lower column provided in an embodiment of the utility model;

[0043] Figure 5 A schematic diagram of the structure of the upper column provided in an embodiment of the utility model;

[0044] Figure 6 A schematic diagram of the structure of a first longitudinal beam provided in an embodiment of the utility model;

[0045] Figure 7A schematic diagram of the structure of a first crossbeam provided in an embodiment of the utility model;

[0046] Figure 8 A schematic diagram of a structure in which a first dustproof cloth provided in an embodiment of the utility model has multiple movable surfaces;

[0047] Fig. 9 A schematic diagram of the location of the stone installation provided by the embodiment of the utility model;

[0048] Fig.10 A schematic diagram of integrally installed stone provided by an embodiment of the utility model;

[0049] Fig.11 A dimension diagram of the active surface provided for an embodiment of the utility model;

[0050] Fig.12 A schematic diagram of an application of a dustproof device provided in an embodiment of the utility model;

[0051] Fig.13 A schematic diagram of another application of a dustproof device provided in an embodiment of the utility model.

[0052] Among them, support frame 1, first column 1-1, upper column 1-1-1, lower column 1-1-2, first connecting piece 1-1-3, second connecting piece 1-1-4, bolt 1-1-5, second column 1-2, third column 1-3, fourth column 1-4, first crossbeam 1-5, second crossbeam 1-6, third crossbeam 1-7, fourth crossbeam 1-8, first longitudinal beam 1-9, second longitudinal beam 1-10, third longitudinal beam 1-11, fourth longitudinal beam 1-12; first dustproof cloth 2, movable surface 21, first sealing structure 22, second sealing structure 23; second dustproof cloth 3; roller 4. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0054] The utility model provides a dustproof device, see Figures 1 to 7 , Figure 1 Schematic diagram of the structure of the dustproof device, the dustproof device comprises: a support frame 1, a first dustproof cloth 2, a second dustproof cloth 3 and a plurality of rollers 4;

[0055] The first dustproof cloth 2 is arranged along the circumference of the support frame 1, and the second dustproof cloth 3 is arranged on the top to form a sealed space;

[0056] The first dustproof cloth 2 is provided with a movable surface 21 for equipment and / or personnel to pass through, and a first sealing structure 22 is provided on the contact side between the movable surface 21 and the first dustproof cloth 2;

[0057] The contact side of the first dustproof cloth 2 with the movable surface 21 is provided with a second sealing structure 23 which is sealed and matched with the first sealing structure 22;

[0058] The roller 4 is arranged at the bottom of the supporting frame 1 .

[0059] In the embodiment of the utility model, the first dustproof cloth 2 is arranged along the circumference of the support frame 1, and the second dustproof cloth 3 is arranged at the top to form a sealed space, and a movable surface 21 for equipment and / or personnel to pass through is provided on the first dustproof cloth 2, and a first sealing structure 22 is provided on the contact side of the movable surface 21 and the first dustproof cloth 2, and a second sealing structure 23 that is sealed and matched with the first sealing structure 22 is provided on the contact side of the first dustproof cloth 2 and the movable surface 21, and a roller 4 is arranged at the bottom of the support frame 1. Through the dustproof device disclosed above, since the roller 4 is arranged at the bottom of the support frame 1, it is convenient for the staff to move when it is necessary to move, and a sealed space can be formed by the cooperation of the first dustproof cloth 2 and the second dustproof cloth 3, which effectively prevents the leakage of flying dust.

[0060] Specifically, a counterweight rod is provided at the bottom of the first dustproof cloth 2 and the movable surface 21 .

[0061] It should be noted that by arranging a counterweight rod at the bottom of the first dustproof cloth 2 and the movable surface 21 , the first dustproof cloth 2 and the bottom of the movable surface 21 can be kept in sealed contact with the ground under the gravity of the counterweight rod.

[0062] Furthermore, a plurality of movable surfaces 21 are provided in the circumferential direction of the first dustproof cloth 2 .

[0063] It should be noted that, by providing a plurality of movable surfaces 21 in the circumferential direction of the first dustproof cloth 2, it is convenient for workers to enter the dustproof device from different directions to perform operations according to their needs.

[0064] refer to Figure 8 The movable surfaces 21 on the front and rear sides can be set according to the size of the equipment to facilitate the entry and exit of the equipment, while the movable surface 21 on the right side is used for the passage of staff.

[0065] Specifically, the first dustproof cloth 2 and / or the second dustproof cloth 3 are made of transparent plastic material.

[0066] It should be noted that the first dustproof cloth 2 and / or the second dustproof cloth 3 are made of transparent plastic material, which not only facilitates the staff to observe the situation inside the dustproof device, but also ensures the light inside the dustproof device, facilitating the staff to work.

[0067] Further, the first sealing structure 22 is a magnet;

[0068] The second sealing structure 23 is a fixing rod that can be attracted by a magnet.

[0069] It should be noted that the first sealing structure 22 is set as a magnet, and the second sealing structure 23 is a fixed rod that can be attracted by the magnet. Then, through the magnetic attraction cooperation between the magnet and the fixed rod, the movable surface 21 can be in sealing contact with the first dustproof cloth 2 after being closed.

[0070] It should also be noted that the first sealing structure 22 can be set as a magnet and the second sealing structure 23 can be set as a fixed rod that can be adsorbed by the magnet, or the second sealing structure 23 can be set as a magnet and the first sealing structure 22 can be set as a fixed rod that can be adsorbed by the magnet. Technical personnel in this field can make the selection according to their needs.

[0071] Preferably, the movable surface 21 is sealed to the first dustproof cloth 2 via a zipper.

[0072] Specifically, the support frame 1 is a rectangular structure, and the support frame 1 at least includes: a first column 1-1, a second column 1-2, a third column 1-3, a fourth column 1-4, a first crossbeam 1-5, a second crossbeam 1-6, a third crossbeam 1-7, a fourth crossbeam 1-8, a first longitudinal beam 1-9, a second longitudinal beam 1-10, a third longitudinal beam 1-11 and a fourth longitudinal beam 1-12;

[0073] One end of the first crossbeam 1-5 is connected to the top of the first column 1-1, and the other end is connected to the top of the second column 1-2;

[0074] The second crossbeam 1-6 is arranged below the first crossbeam 1-5, one end of the second crossbeam 1-6 is connected to the first column 1-1, and the other end is connected to the second column 1-2;

[0075] One end of the third crossbeam 1-7 is connected to the top of the third column 1-3, and the other end is connected to the top of the fourth column 1-4;

[0076] The fourth crossbeam 1-8 is arranged below the third crossbeam 1-7, one end of the fourth crossbeam 1-8 is connected to the third column 1-3, and the other end is connected to the fourth column 1-4;

[0077] One end of the first longitudinal beam 1-9 is connected to the top of the first column 1-1, and the other end is connected to the top of the third column 1-3;

[0078] The second longitudinal beam 1-10 is arranged below the first longitudinal beam 1-9, one end of the second longitudinal beam 1-10 is connected to the first column 1-1, and the other end is connected to the third column 1-3;

[0079] One end of the third longitudinal beam 1-11 is connected to the top of the second column 1-2, and the other end is connected to the top of the fourth column 1-4;

[0080] The fourth longitudinal beam 1-12 is arranged below the third longitudinal beam 1-11, one end of the fourth longitudinal beam 1-12 is connected to the second column 1-2, and the other end is connected to the fourth column 1-4.

[0081] It should be noted that the support frame 1 may be a rectangular structure or other types of structures (such as a diamond or a circle), and those skilled in the art may configure it according to requirements.

[0082] Specifically, the first column 1-1, the second column 1-2, the third column 1-3 and the fourth column 1-4 have the same structure;

[0083] The first column 1-1 includes: an upper column 1-1-1, a lower column 1-1-2, a first connecting member 1-1-3, a second connecting member 1-1-4 and a bolt 1-1-5;

[0084] The lower end of the upper column 1-1-1 is sleeved with the upper end of the lower column 1-1-2;

[0085] Bolt 1-1-5 is used to limit the separation of upper column 1-1-1 and lower column 1-1-2;

[0086] The first connecting member 1-1-3 and the second connecting member 1-1-4 are both arranged on the upper column 1-1-1, and the first connecting member 1-1-3 is located above the second connecting member 1-1-4;

[0087] The first connecting member 1-1-3 is used to connect with the first cross beam 1-5 and the first longitudinal beam 1-9;

[0088] The second connecting member 1-1-4 is used to connect with the second cross beam 1-6 and the second longitudinal beam 1-10.

[0089] It should be noted that the lower end of the upper column 1-1-1 is socketed with the upper end of the lower column 1-1-2, and the bolt 1-1-5 is used to limit the upper column 1-1-1 and the lower column 1-1-2 from being separated. The first connecting member 1-1-3 and the second connecting member 1-1-4 are both arranged on the upper column 1-1-1, and the first connecting member 1-1-3 is located above the second connecting member 1-1-4, and is connected to the first cross beam 1-5 and the first longitudinal beam 1-9 through the first connecting member 1-1-3, and is connected to the second cross beam 1-6 and the second longitudinal beam 1-10 through the second connecting member 1-1-4, which not only facilitates the transportation of the first column 1-1, but also facilitates the installation of the first column 1-1.

[0090] The first column 1-1, the second column 1-2, the third column 1-3 and the fourth column 1-4 are configured with the same structure, also for the purpose of transporting and installing the second column 1-2, the third column 1-3 and the fourth column 1-4.

[0091] It is worth noting that when the upper column 1-1-1 is connected with the lower column 1-1-2, the diameter of the lower end of the upper column 1-1-1 can be set to be slightly larger (so that the upper end of the lower column 1-1-2 can be inserted), or the diameter of the upper end of the lower column 1-1-2 can be set to be smaller (the upper end of the lower column 1-1-2 can be inserted into the lower end of the upper column 1-1-1), and then the upper end of the lower column 1-1-2 is inserted into the lower end of the upper column 1-1-1, and finally the upper column 1-1-1 and the lower column 1-1-2 are fixed and locked in the socket position by bolts 1-1-5 to prevent the lower column 1-1-2 from escaping from the lower end of the upper column 1-1-1.

[0092] When the upper column 1-1-1 is connected with the lower column 1-1-2, the diameter of the upper end of the lower column 1-1-2 can be set to be slightly larger (so that the lower end of the upper column 1-1-1 can be inserted), or the diameter of the lower end of the upper column 1-1-1 can be set to be smaller (the lower end of the upper column 1-1-1 can be inserted into the upper end of the lower column 1-1-2), and then the lower end of the upper column 1-1-1 is inserted into the upper end of the lower column 1-1-2, and finally the upper column 1-1-1 and the lower column 1-1-2 are fixed and locked by bolts 1-1-5 to prevent the upper column 1-1-1 from escaping from the lower end of the lower column 1-1-2.

[0093] Further, the dustproof device, the first beam 1-5, the second beam 1-6, the third beam 1-7 and the fourth beam 1-8 have the same structure;

[0094] The first crossbeam 1-5 is composed of a plurality of sub-crossbeams.

[0095] It should be noted that, configuring the first crossbeam 1-5 to be composed of a plurality of sub-crossbeams can effectively reduce the difficulty of transportation (less length and space are occupied).

[0096] It is worth noting that the connection method of the multiple sub-beams can refer to the connection method of the first column 1-1 mentioned above, which will not be elaborated here, but it is not limited to the above connection method.

[0097] Setting the structures of the first beam 1-5, the second beam 1-6, the third beam 1-7 and the fourth beam 1-8 to be the same can also reduce the difficulty of transporting the second beam 1-6, the third beam 1-7 and the fourth beam 1-8 (less length and space are occupied).

[0098] Specifically, the first longitudinal beam 1-9, the second longitudinal beam 1-10, the third longitudinal beam 1-11 and the fourth longitudinal beam 1-12 have the same structure;

[0099] The first longitudinal beam 1-9 is composed of a plurality of sub-longitudinal beams.

[0100] It should be noted that, configuring the first longitudinal beam 1-9 to be composed of a plurality of sub-longitudinal beams can effectively reduce the difficulty of transportation (less length and space are occupied).

[0101] It is worth noting that the connection method of the multiple sub-longitudinal beams can refer to the connection method of the first column 1-1 mentioned above, which will not be elaborated here, but it is not limited to the above connection method.

[0102] Setting the structures of the first longitudinal beam 1-9, the second longitudinal beam 1-10, the third longitudinal beam 1-11 and the fourth longitudinal beam 1-12 to be the same can also reduce the difficulty of transporting the second longitudinal beam 1-10, the third longitudinal beam 1-11 and the fourth longitudinal beam 1-12 (less length space is occupied).

[0103] Specifically, the roller 4 is a universal wheel.

[0104] It should be noted that setting the roller 4 as a universal wheel can further facilitate the staff to move the dustproof device.

[0105] In order to facilitate the understanding of the above scheme, Figures 1 to 13 , which is further introduced below.

[0106] The dustproof device comprises a supporting frame and a dustproof cloth;

[0107] The supporting frame is composed of 4 columns (i.e., the first column, the second column, the third column and the fourth column), 4 width beams (i.e., the first cross beam, the second cross beam, the third cross beam and the fourth cross beam) and 4 depth beams (i.e., the first longitudinal beam, the second longitudinal beam, the third longitudinal beam and the fourth longitudinal beam).

[0108] The column consists of casters, lower columns and upper columns (the column is divided into two parts for easy processing and transportation). The casters are universal casters with brakes, which can be moved in all directions and can be fixed by brakes; the lower column and casters are installed by bolt connection; the upper column and the lower column are embedded and then locked by bolts, and the upper column has a structure connected to the width beam and the depth beam. The overall height of the column is related to the height of the operating table, but in order to facilitate internal personnel operation, the height is generally not less than 2000mm.

[0109] The width beam is assembled from the left beam (i.e., the sub-longitudinal beam) and the right beam (i.e., the sub-longitudinal beam). The left beam and the right beam are embedded and then locked with bolts. Both sides are connected to the columns and locked with bolts. The size of the width beam can be determined according to the scale of the operating table and the layout of the control room, but in order to facilitate the operation of internal personnel, the width is generally not less than 2000mm. To increase the convenience of organization, the width beam can be used upside down (no direction requirement). To maintain the stability of the overall frame, 2 width beams are installed at the front and back.

[0110] The depth beam is composed of three parts: the front beam, the middle beam and the rear beam (i.e., multiple sub-beams of the present application are assembled). The front beam is the same as the left beam of the width beam, the rear beam is the same as the right beam of the width beam, and the middle beam is the same as the right beam of the width beam. Fig.10 As shown, the three types are embedded and then locked by bolts. The front and rear beams are connected to the columns on both sides and locked by bolts. The size of the depth beam can be determined according to the scale of the operating table and the layout of the control room, but in order to facilitate the operation of internal personnel, the general depth beam size is not less than 3000mm. To maintain the stability of the overall frame, 2 depth beams are installed at the front and back. The height requirement of the depth beam below must be higher than the highest size of the operating table.

[0111] The dustproof cloth covers the surface of the support frame to play a dustproof and sealing role. The overall shape is a rectangular parallelepiped with the same size as the support frame (slightly larger than the frame size), but only has five sides: front, back, left, right, and top, and the bottom is the ground. The dustproof cloth consists of a fixed surface and a movable surface. Both the fixed surface and the movable surface are made of transparent plastic.

[0112] The fixed surface includes five fixed surfaces: front, back, left, right and top. The fixed surfaces are connected together by bonding or high-density stitching (with dust-proof sealing function). The height of the fixed surface is about 100mm higher than the total height of the support frame, and the bottom edge of the fixed surface is installed with a counterweight "iron column" (i.e., counterweight rod) to keep the bottom edge of the fixed surface in contact and sealed with the floor. The iron column size is 6mm in diameter * 20mm in length to keep the fixed surface foldable. Magnet columns are installed on the left and right fixed surfaces at the junction with the movable surface. The size of the magnet column is the same as that of the counterweight iron column. A zipper is installed at the junction of the front fixed surface and the front movable surface to facilitate the operator's entry and exit.

[0113] There are movable surfaces on the front, left and right fixed surfaces, namely the left movable surface, the right movable surface and the front movable surface. Iron columns are installed at the junction of the movable surface and the fixed surface, and at the junction of the movable surface and the ground, so as to be attracted to the fixed surface magnet column and fit the ground to play a sealing role.

[0114] The function of the front movable surface is to facilitate the entry and exit of operators, and its size can meet the requirements of personnel entry and exit. The height of the movable surface can be lower than the width beam below, and the width can be 600mm.

[0115] The function of the left and right movable surfaces is to cooperate with the cross section of the operating table to play a dust-proof and sealing role, so their shape and size depend on the cross-sectional size of the corresponding operating table. For example: the cross section of the sitting operating table that needs to be installed with marble is as follows: Fig. 9 As shown, the layout of the disk platform is as follows Fig.10 As shown, the corresponding shapes and sizes of the left and right active surfaces are as follows Fig.11 shown.

[0116] Where: H1 = 1120 + 50 = 1170 mm

[0117] H2=645-50=595mm

[0118] H3=685+50=735mm

[0119] H4=685-645=40mm

[0120] H5=50mm

[0121] L1=200+(2000-1200)SIN(180°-160°)≈474mm

[0122] L2=390 / COS(180°-160°)+50≈465mm

[0123] L3=390-50=340mm

[0124] L4=600-50=550mm

[0125] L5=550+50=600mm

[0126] L6=100mm

[0127] There are two extreme positions when using the dust protection device.

[0128] Case 1: Reference Fig.12 , the depth beam of the dustproof device is perpendicular to the width direction of the operating table, and the movable surface is parallel to the cross section of the operating table, that is, the relevant dimensions of the movable surface are theoretically consistent with the cross section dimensions of the operating table. However, in order to compensate for the processing, installation and use errors, the dimensions of the movable surfaces L3 and L4 need to be made smaller to ensure that the edges of the movable surfaces related to them are "interference" with the edges corresponding to the cross section of the operating table to achieve the maximum sealing effect; the size of L5 needs to be made larger to ensure that the movable surface can accommodate the decryption of the operating table.

[0129] Case 2: Reference Fig.13 , assuming that the angle a in the entire operating table is smaller than the angle b, the left side active surface is farthest from the back of the dustproof device and the active surface size is the largest. The L2 size must be larger than the size of the theoretical oblique section at this time (390 / COS(180°-a)) to ensure that the active surface can accommodate the panel section.

[0130] The back of the dustproof device should be at a certain distance from the back of the operating table to avoid collision between the dustproof device and the operating table. Consider the rotation radius of the casters under the dustproof device, and the appropriate value is 200mm.

[0131] In actual operation, the movable surface that crosses the operating table needs to be rolled up, and the fixed surface corresponding to the movable surface is in contact with the surface of the operating table. Due to the presence of the magnet column and the counterweight iron column, the dustproof device will be kept in sealed contact with the surface of the operating table to the maximum extent. The movable surface that does not cross the operating table is sealed with the fixed surface by suction.

[0132] The dustproof device cannot achieve a completely dust-tight effect. To ensure the best sealing and dustproofing, operating tables of different types and sizes need to be designed individually, especially the shape and size of the movable surface.

[0133] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dustproof device, characterized in that: include: A supporting frame, a first dustproof cloth, a second dustproof cloth and a plurality of rollers; The first dustproof cloth is arranged along the circumference of the support frame, and the second dustproof cloth is arranged on the top to form a sealed space; The first dustproof cloth is provided with a movable surface for equipment and / or personnel to pass through, and a first sealing structure is provided on the contact side between the movable surface and the first dustproof cloth; The contact side of the first dustproof cloth with the movable surface is provided with a second sealing structure which is sealed and matched with the first sealing structure; The roller is arranged at the bottom of the supporting frame.

2. The dustproof device according to claim 1, characterized in that: A counterweight rod is provided at the bottom of the first dustproof cloth and the movable surface.

3. The dustproof device according to claim 1, characterized in that: A plurality of movable surfaces are provided in the circumferential direction of the first dustproof cloth.

4. The dustproof device according to claim 1, characterized in that: The first dustproof cloth and / or the second dustproof cloth are made of transparent plastic material.

5. The dustproof device according to claim 1, characterized in that: The first sealing structure is a magnet; The second sealing structure is a fixing rod that can be attracted by a magnet.

6. The dustproof device according to claim 1, characterized in that: The support frame is a rectangular structure, and the support frame at least comprises: a first column, a second column, a third column, a fourth column, a first crossbeam, a second crossbeam, a third crossbeam, a fourth crossbeam, a first longitudinal beam, a second longitudinal beam, a third longitudinal beam and a fourth longitudinal beam; One end of the first crossbeam is connected to the top of the first column, and the other end is connected to the top of the second column; The second crossbeam is arranged below the first crossbeam, one end of the second crossbeam is connected to the first column, and the other end of the second crossbeam is connected to the second column; One end of the third crossbeam is connected to the top of the third column, and the other end is connected to the top of the fourth column; The fourth cross beam is arranged below the third cross beam, one end of the fourth cross beam is connected to the third column, and the other end of the fourth cross beam is connected to the fourth column; One end of the first longitudinal beam is connected to the top of the first column, and the other end is connected to the top of the third column; The second longitudinal beam is arranged below the first longitudinal beam, one end of the second longitudinal beam is connected to the first column, and the other end of the second longitudinal beam is connected to the third column; One end of the third longitudinal beam is connected to the top of the second column, and the other end is connected to the top of the fourth column; The fourth longitudinal beam is arranged below the third longitudinal beam, one end of the fourth longitudinal beam is connected to the second column, and the other end of the fourth longitudinal beam is connected to the fourth column.

7. The dustproof device according to claim 6, characterized in that: The first column, the second column, the third column and the fourth column have the same structure; The first column comprises: an upper column, a lower column, a first connecting member, a second connecting member and a bolt; The lower end of the upper column is clamped with the upper end of the lower column; The bolt is used to limit the separation of the upper column and the lower column; The first connecting member and the second connecting member are both arranged on the upper column, and the first connecting member is located above the second connecting member; The first connecting member is used to connect with the first cross beam and the first longitudinal beam; The second connecting member is used to connect with the second cross beam and the second longitudinal beam.

8. The dustproof device according to claim 6, characterized in that: The first crossbeam, the second crossbeam, the third crossbeam and the fourth crossbeam have the same structure; The first crossbeam is composed of a plurality of sub-crossbeams.

9. The dustproof device according to claim 6, characterized in that: The first longitudinal beam, the second longitudinal beam, the third longitudinal beam and the fourth longitudinal beam have the same structure; The first longitudinal beam is composed of a plurality of sub-longitudinal beams.

10. The dust prevention device according to claim 1, characterized in that: The roller is a universal wheel.

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