CN215803748U - Shielding device for repairing building engineering wall - Google Patents

Abstract

The application provides a building engineering wall body is restoreed with sheltering from device belongs to wall body restoration and shelters from technical field. This building engineering wall body is restoreed with sheltering from device includes base and adjustment mechanism, the stand rotate install in the base top, the driving piece with the stand transmission is connected, the barrel set up in horizontal pole one end, the inside rotation of barrel installs two-way screw rod, the bull stick passes through the driving medium with two-way screw rod transmission is connected, the retaining member set up in the bull stick surface, two the fly leaf passes through respectively two sections opposite direction's on the two-way screw rod screw thread with two-way screw rod screw thread cup joints, two the one end that the fly leaf was carried on the back mutually all is provided with the activity and runs through in the baffle of barrel, the angle of the barrel of being convenient for adjust during this building engineering wall body is restoreed with sheltering from device operation and the distance that the baffle stretches out, and then so that shelter from the wall body of different positions and co-altitude.

Description

Shielding device for repairing building engineering wall

Technical Field

The application relates to the technical field of wall repair shielding, in particular to a shielding device for building engineering wall repair.

Background

The wall body is usually required to be shielded in the construction site for repairing the wall body, so that the wall body is protected, and the wall body is not easily interfered by external factors in the repairing process. The existing shielding device usually uses the baffle to shield the wall, but the baffle is often inconvenient to carry out angle adjustment on the baffle in the using process, so that the application range of the baffle is limited. In addition, when the wall body that corresponds higher height shelters from, its baffle that corresponds often also need correspond the setting, and the height of baffle is often not convenient for to current device of sheltering from has certain limitation.

How to invent a shielding device for repairing a building engineering wall to improve the problems becomes a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to compensate for the defects, the application provides a shielding device for repairing a building engineering wall, aiming at solving the problem that the existing device cannot adjust the angle and height of a baffle conveniently.

The embodiment of the application provides a shielding device for repairing a building engineering wall, which comprises a base and an adjusting mechanism, wherein a self-locking pulley is arranged at the bottom of the base, a balancing weight is arranged on one side of the top of the base, the adjusting mechanism comprises a stand column, a driving piece, a cross rod, a barrel body, a rotating rod, a driving piece and a locking piece, the stand column is rotatably arranged at the top of the base, the driving piece is in transmission connection with the stand column, the cross rod is arranged at the top of the stand column, the barrel body is arranged at one end of the cross rod, a bidirectional screw rod is rotatably arranged in the barrel body, the rotating rod is in transmission connection with the bidirectional screw rod through the driving piece, the locking piece is arranged on the surface of the rotating rod, the outer wall of the bidirectional screw rod is connected with two movable plates, the two movable plates are respectively in sleeve connection with the bidirectional screw rod through two threads in opposite directions on the bidirectional screw rod, two the one end that the fly leaf was carried on the back mutually all is provided with the activity run through in the baffle of barrel.

In the implementation process, the base is moved to one side of the wall body to be repaired through the self-locking pulley at the bottom of the base, the barrel and the internal structure of the barrel are positioned above one side of the base, the balancing weight is arranged at the other side of the top of the base, the overturning caused by unstable gravity center when the base moves is avoided through the arrangement of the balancing weight, the driving piece is started according to the part needing to be shielded by the wall body, the stand column is rotatably arranged at the top of the base and is in transmission connection with the stand column, so that the stand column rotates, the baffle at one side of the stand column rotates, the baffle faces to the part needing to be shielded by the wall body, the rotating rod is in transmission connection with the bidirectional screw rod through the transmission piece, the two movable plates are respectively in threaded sleeve connection with the bidirectional screw rod through two sections of threads in opposite directions on the bidirectional screw rod, and the rotating rod drives the bidirectional screw rod to rotate according to the thread transmission principle, and then drive two movable plates and be close to or keep away from mutually, wherein the baffle slides and sets up inside the barrel, the barrel also is used for sheltering from, if treat prosthetic wall body height when great, make two movable plates keep away from mutually, and then make two baffles keep away from mutually, two baffles all stretch out the barrel, and then increase the length of barrel, thereby be convenient for carry out the adjustment that adapts to according to the height of wall body, because the retaining member sets up in the bull stick surface, the retaining member is with the rotation of restriction bull stick, after the distance adjustment that the baffle stretches out, through the retaining member so that the state of bull stick is fixed, and then make two-way screw rod unrotatable, thereby accomplish the fixed setting that the baffle stretches out the distance.

In a specific implementation scheme, the driving member comprises a motor, a first bevel gear and a second bevel gear, the motor is fixedly arranged at the top of the base, the output shaft of the motor is connected with the first bevel gear, the stand column is fixedly sleeved with the second bevel gear, and the second bevel gear is meshed with the first bevel gear.

In the above-mentioned realization process, motor output shaft rotates and drives first helical gear and rotates, and then drives the inboard stand rotation of second helical gear, and this kind of design has avoided the lug connection of motor output shaft and stand, and the level of being convenient for is fixed places the motor.

In a specific embodiment, one end of the movable plate, which is far away from the cross rod, is connected with the inner wall of the barrel in a sliding mode.

In the implementation process, the movable plate is easy to rotate due to the rotation of the bidirectional screw, and the movable plate is limited to move along the direction in which the movable plate is limited by the sliding connection between the movable plate and the inner wall of the barrel, so that the movable plate can only move vertically.

In a specific embodiment, the horizontal pole with be provided with fixed frame between the barrel, bull stick one end rotate set up in fixed frame inboard, the activity of the bull stick other end runs through out fixed frame, the stand with the fixed stiffener that is provided with between barrel one side bottom.

In the implementation process, the fixing frame is used for placing the rotating rod, and the reinforcing rod is fixedly arranged between the bottom of one side of the stand column and the bottom of one side of the barrel body, so that the firmness of the reinforcing rod when the barrel body is connected is improved.

In a specific embodiment, the retaining member comprises a screw rod and a fastening bolt, the screw rod is arranged at one end of the rotating rod, which extends out of the fixing frame, and the fastening bolt is sleeved on the screw rod.

In the implementation process, after the rotating rod rotates at a proper position, the fastening bolt is rotated to move downwards and extrude the top of the fixed frame, and the rotating rod at the bottom of the screw rod is subjected to downward contact force due to the fact that the fastening bolt is sleeved on the screw rod, so that the motion state of the rotating rod is limited.

In a specific embodiment, the fastening bolt is provided with a magnetic sheet at the bottom, and an iron sheet is arranged at the top of the fixing frame and vertically aligned with the magnetic sheet.

In the above-mentioned realization in-process, at fastening bolt rotating down in-process, the magnetic sheet will be close to the iron sheet, until iron sheet and magnetic sheet contact each other, through the adsorption affinity between iron sheet and the magnetic sheet to strengthen the connecting effect between fastening bolt and the fixed frame top.

In a specific embodiment, the driving medium includes thread bush, first gear, opening and second gear, the fixed cover of thread bush is located two-way screw rod middle part, the fixed cover of first gear is located the thread bush, the opening set up in barrel one side, the fixed cover of second gear is located the bull stick, first gear with the relative one end of second gear all activity set up in the opening, first gear with the relative one end meshing of second gear is connected.

In the implementation process, the rotating rod rotates to drive the second gear to rotate, and then drives the threaded sleeve on the inner side of the first gear to rotate, so that the bidirectional screw rod rotates, and the bidirectional screw rod is driven to rotate outside the cylinder body through the design.

In a specific embodiment, the baffle is of an arc-shaped bent structure, an opening is formed in the end portion of the baffle, a spring is fixedly arranged inside the baffle, one end of the spring is connected with an extension plate, the extension plate is slidably mounted inside the baffle, and one end of the extension plate movably extends out of the opening.

In the above-mentioned realization process, arc bending structure's baffle for when the baffle receives external impact, its impact can be to the arc position dispersion of baffle both sides, thereby avoid the too big baffle damage that causes of certain partial atress of baffle, spring one end is connected with the extension board, extension board slidable mounting is inside the baffle, when the opening is in the open mode, the elastic force through the spring, so that the tip of extension board stretches out the baffle, thereby improve the length of baffle, so that the arc surrounding range increase of baffle.

In a specific embodiment, the end part of the baffle plate is hinged with a cover plate close to the opening, the cover plate is provided with a connecting rod in a threaded manner, and the cover plate is movably connected with the baffle plate through the connecting rod.

In the implementation process, the cover plate is rotated to cover the opening, the connecting rod is rotated to enable the connecting rod to penetrate through the baffle in a threaded mode, the closed process of the opening is completed, the connecting rod is loosened, and the baffle can penetrate out of the baffle through the opening.

In a specific embodiment, a rotating hand is arranged at one end of the connecting rod.

In the above implementation, the hand is turned to turn the link.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a shielding device for repairing a wall in a construction project according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an adjustment mechanism provided in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a transmission member provided in an embodiment of the present application;

FIG. 4 is an enlarged view of FIG. 3 at A provided by an embodiment of the present application;

FIG. 5 is a top cross-sectional view of a baffle provided in accordance with an embodiment of the present application;

fig. 6 is an enlarged view of a portion B in fig. 5 according to an embodiment of the present disclosure.

In the figure: 100-a base; 110-self-locking pulley; 120-a counterweight block; 200-an adjustment mechanism; 210-a column; 211-a reinforcing bar; 220-a drive member; 221-a motor; 222-a first bevel gear; 223-a second bevel gear; 230-a cross-bar; 231-a fixed frame; 2311-iron sheet; 240-cylinder; 241-a bidirectional screw; 242-a movable plate; 243-baffle; 2431-a spring; 2432-extension plate; 2433-cover plate; 2434-a connecting rod; 244-an opening; 250-rotating rod; 260-a transmission member; 261-thread sleeve; 262-a first gear; 263-through port; 264-second gear; 270-a locking member; 271-a screw rod; 272-fastening bolts; 2721-magnetic sheet.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-6, the present application provides a shielding device for repairing a wall in a building engineering, including a base 100 and an adjusting mechanism 200, wherein a self-locking pulley 110 is disposed at the bottom of the base 100, a counterweight 120 is disposed at one side of the top of the base 100, the adjusting mechanism 200 includes a vertical column 210, a driving member 220, a cross bar 230, a cylinder 240, a rotating rod 250, a transmission member 260, and a locking member 270, the vertical column 210 is rotatably mounted at the top of the base 100, the driving member 220 is in transmission connection with the vertical column 210, the cross bar 230 is disposed at the top of the vertical column 210, the cylinder 240 is disposed at one end of the cross bar 230, a bidirectional screw 241 is rotatably mounted inside the cylinder 240, the rotating rod 250 is in transmission connection with the bidirectional screw 241 through the transmission member 260, the locking member 270 is disposed on the surface of the rotating rod 250, two movable plates 242 are connected to the outer wall of the bidirectional screw 241, the two movable plates 242 are respectively in threaded socket connection with the bidirectional screw 241 through two opposite threads on the bidirectional screw 241, the opposite ends of the two movable plates 242 are both provided with a baffle 243 movably penetrating through the cylinder 240.

In some specific embodiments, the driving member 220 includes a motor 221, a first bevel gear 222 and a second bevel gear 223, the motor 221 is fixedly disposed at the top of the base 100, an output shaft of the motor 221 is connected to the first bevel gear 222, the second bevel gear 223 is fixedly sleeved on the column 210, the second bevel gear 223 is engaged with the first bevel gear 222, the output shaft of the motor 221 rotates to drive the first bevel gear 222 to rotate, and further drive the column 210 inside the second bevel gear 223 to rotate.

In some specific embodiments, one end of the movable plate 242, which is away from the cross bar 230, is slidably connected to the inner wall of the cylinder 240, and the movable plate 242 tends to rotate due to the rotation of the bidirectional screw 241, so that the movable plate 242 is limited in its tendency to move by the sliding connection between the movable plate 242 and the inner wall of the cylinder 240, so that the movable plate 242 can only move vertically.

In some specific embodiments, a fixing frame 231 is disposed between the cross bar 230 and the cylinder 240, one end of the rotating rod 250 is rotatably disposed inside the fixing frame 231, the other end of the rotating rod 250 movably penetrates through the fixing frame 231, the fixing frame 231 is used for placing the rotating rod 250, and the reinforcing rod 211 is fixedly disposed between the upright 210 and the bottom of one side of the cylinder 240, so that the firmness of the cylinder 240 during connection is improved.

In some embodiments, the locking member 270 includes a screw rod 271 and a fastening bolt 272, the screw rod 271 is disposed at one end of the rotary rod 250 extending out of the fixing frame 231, the fastening bolt 272 is sleeved on the screw rod 271, after the rotary rod 250 rotates at a proper position, the fastening bolt 272 is rotated, so that the fastening bolt 272 moves downward and presses the top of the fixing frame 231, and the fastening bolt 272 is sleeved on the screw rod 271, so that the rotary rod 250 at the bottom of the screw rod 271 is subjected to a downward contact force, thereby limiting the movement state of the rotary rod 250.

In some embodiments, a magnetic piece 2721 is disposed at the bottom of the fastening bolt 272, an iron piece 2311 is disposed at the top of the fixing frame 231 and vertically aligned with the magnetic piece 2721, and during the downward rotation of the fastening bolt 272, the magnetic piece 2721 approaches the iron piece 2311 until the iron piece 2311 and the magnetic piece 2721 contact each other, so that the connection effect between the fastening bolt 272 and the top of the fixing frame 231 is enhanced by the adsorption force between the iron piece 2311 and the magnetic piece 2721.

In some specific embodiments, the transmission member 260 includes a threaded sleeve 261, a first gear 262, a through hole 263 and a second gear 264, the threaded sleeve 261 is fixedly sleeved on the middle portion of the bidirectional screw 241, the first gear 262 is fixedly sleeved on the threaded sleeve 261, the through hole 263 is disposed on one side of the cylinder 240, the second gear 264 is fixedly sleeved on the rotating rod 250, opposite ends of the first gear 262 and the second gear 264 are movably disposed on the through hole 263, the opposite ends of the first gear 262 and the second gear 264 are engaged with each other, the rotating rod 250 rotates to drive the second gear 264 to rotate, and further drive the threaded sleeve 261 inside the first gear 262 to rotate, so that the bidirectional screw 241 rotates, and this design is to drive the bidirectional screw 241 to rotate outside the cylinder 240.

In some specific embodiments, the barrier 243 is an arc-shaped curved structure, an opening 244 is formed at an end of the barrier 243, a spring 2431 is fixedly arranged inside the barrier 243, an extension plate 2432 is connected to one end of the spring 2431, the extension plate 2432 is slidably mounted inside the barrier 243, one end of the extension plate 2432 movably extends out of the opening 244, the barrier 243 with the arc-shaped curved structure enables collision force of the barrier 243 to be dispersed to arc-shaped portions on two sides of the barrier 243 when the barrier 243 receives collision force from the outside, so that damage to the barrier 243 due to excessive force applied to a certain portion of the barrier 243 is avoided, the extension plate 2432 is connected to one end of the spring 2431, the extension plate 2432 is slidably mounted inside the barrier 243, and when the opening 244 is in an opening 244 state, the end of the extension plate 2432 extends out of the barrier 243 through elastic force of the spring 2431, so that the length of the barrier 243 is increased, and the arc-shaped enclosing range of the barrier 243 is increased.

In some specific embodiments, a cover plate 2433 is hingedly mounted at an end of the baffle 243 near the opening 244, a connecting rod 2434 is threadedly mounted on the cover plate 2433, the cover plate 2433 is movably connected to the baffle 243 through the connecting rod 2434, the cover plate 2433 is rotated to cover the opening 244, and the connecting rod 2434 is rotated to thread the connecting rod 2434 through the baffle 243, so that the opening 244 is closed, and the connecting rod 2434 is loosened to allow the baffle 243 to pass through the opening 244 and out of the baffle 243.

In some specific embodiments, link 2434 is provided with a rotating hand at one end, which rotates the hand to rotate link 2434.

This building engineering wall body is restoreed with device that shelters from's theory of operation: the base 100 is moved to one side of the wall to be repaired, because the cylinder 240 and the internal structure thereof are located above one side of the base 100, and the counterweight block 120 is arranged at the other side of the top of the base 100, through the arrangement of the counterweight block 120, the base 100 is prevented from overturning due to unstable gravity center when moving, according to the position needing to be shielded by the wall, because the upright post 210 is rotatably arranged at the top of the base 100, the driving member 220 is in transmission connection with the upright post 210, the upright post 210 rotates, and further the baffle 243 at one side of the upright post 210 rotates, so that the baffle 243 faces the position needing to be shielded by the wall, because the rotating rod 250 is in transmission connection with the bidirectional screw 241 through the driving member 260, the two movable plates 242 are respectively in threaded socket connection with the bidirectional screw 241 through two sections of opposite directions on the bidirectional screw 241, the rotating rod 250 drives the bidirectional screw 241 to rotate, and further drives the two movable plates 242 to approach or separate from each other, wherein baffle 243 slides and sets up inside barrel 240, barrel 240 also is used for sheltering from, if the wall body height of waiting to restore is great, make two fly leaf 242 keep away from mutually, and then make two baffle 243 keep away from mutually, barrel 240 is all stretched out to two baffle 243, and then increase barrel 240's length, thereby be convenient for carry out the adjustment of adaptation according to the height of wall body, because retaining member 270 sets up in bull stick 250 surface, retaining member 270 is with the rotation of restriction bull stick 250, after the distance adjustment that baffle 243 stretched out, through retaining member 270 so that the state of bull stick 250 is fixed, and then make two-way screw 241 unrotatable, thereby accomplish the fixed setting that baffle 243 stretched out the distance.

It should be noted that the specific model specification of the motor 221 needs to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the motor 221 and its principle will be clear to a person skilled in the art and will not be described in detail here.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A shielding device for repairing a building engineering wall body is characterized by comprising

The self-locking device comprises a base (100), wherein a self-locking pulley (110) is arranged at the bottom of the base (100), and a balancing weight (120) is arranged on one side of the top of the base (100);

adjustment mechanism (200), adjustment mechanism (200) includes stand (210), driving piece (220), horizontal pole (230), barrel (240), bull stick (250), driving medium (260), retaining member (270), stand (210) rotate install in base (100) top, driving piece (220) with stand (210) transmission is connected, horizontal pole (230) set up in stand (210) top, barrel (240) set up in horizontal pole (230) one end, barrel (240) internal rotation installs two-way screw rod (241), bull stick (250) pass through driving medium (260) with two-way screw rod (241) transmission is connected, retaining member (270) set up in bull stick (250) surface, two-way screw rod (241) outer wall connection has two fly leaf (242), two fly leaf (242) pass through respectively on two-way screw rod (241) two sections opposite direction's screw thread with two-way screw rod (241) spiral thread The two movable plates (242) are sleeved in a threaded manner, and one ends, opposite to each other, of the two movable plates (242) are respectively provided with a baffle (243) which movably penetrates through the cylinder body (240).

2. The shielding device for repairing the wall body in the constructional engineering according to claim 1, wherein the driving member (220) comprises a motor (221), a first bevel gear (222) and a second bevel gear (223), the motor (221) is fixedly arranged at the top of the base (100), an output shaft of the motor (221) is connected with the first bevel gear (222), the second bevel gear (223) is fixedly sleeved on the upright post (210), and the second bevel gear (223) is meshed with the first bevel gear (222).

3. A shelter device for repairing a building wall as claimed in claim 1, wherein an end of the movable plate (242) far away from the cross bar (230) is slidably connected with an inner wall of the cylinder (240).

4. The shielding device for repairing the wall in the building engineering according to claim 1, wherein a fixing frame (231) is disposed between the cross bar (230) and the cylinder (240), one end of the rotating rod (250) is rotatably disposed inside the fixing frame (231), the other end of the rotating rod (250) movably penetrates through the fixing frame (231), and a reinforcing rod (211) is fixedly disposed between the upright column (210) and the bottom of one side of the cylinder (240).

5. A shielding device for repairing building engineering wall according to claim 4, wherein the locking member (270) comprises a screw rod (271) and a fastening bolt (272), the screw rod (271) is disposed at one end of the rotating rod (250) extending out of the fixing frame (231), and the fastening bolt (272) is sleeved on the screw rod (271).

6. The shielding device for repairing building engineering walls, according to claim 5, wherein a magnetic sheet (2721) is disposed at the bottom of the fastening bolt (272), and an iron sheet (2311) is disposed at the top of the fixing frame (231) and vertically aligned with the magnetic sheet (2721).

7. The shielding device for repairing the wall of the building engineering according to claim 4, wherein the transmission member (260) comprises a threaded sleeve (261), a first gear (262), a through opening (263) and a second gear (264), the threaded sleeve (261) is fixedly sleeved on the middle portion of the bidirectional screw (241), the first gear (262) is fixedly sleeved on the threaded sleeve (261), the through opening (263) is arranged on one side of the cylinder (240), the second gear (264) is fixedly sleeved on the rotating rod (250), opposite ends of the first gear (262) and the second gear (264) are movably arranged on the through opening (263), and opposite ends of the first gear (262) and the second gear (264) are engaged and connected.

8. The shielding device for repairing the building engineering wall according to claim 1, wherein the baffle plate (243) is of an arc-shaped bent structure, the end of the baffle plate (243) is provided with an opening (244), a spring (2431) is fixedly arranged inside the baffle plate (243), one end of the spring (2431) is connected with an extension plate (2432), the extension plate (2432) is slidably arranged inside the baffle plate (243), and one end of the extension plate (2432) movably extends out of the opening (244).

9. A shading device for repairing the wall of the constructional engineering as claimed in claim 8, wherein a cover plate (2433) is hinged at the end of the baffle plate (243) near the opening (244), a connecting rod (2434) is screwed on the cover plate (2433), and the cover plate (2433) is movably connected with the baffle plate (243) through the connecting rod (2434).

10. The screen device for repairing a construction wall according to claim 9, wherein a rotating hand is provided at one end of the connecting rod (2434).

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