Building construction protection platform

Abstract

The building construction protection platform comprises a fixing device, a supporting device and a bearing device, and the fixing device is fixedly arranged on one side of an elevator shaft door opening; the supporting device comprises a first supporting column, a second supporting column, an inner reinforcing mechanism, a side reinforcing mechanism and an abutting mechanism. The first supporting column and the second supporting column are horizontally arranged front and back and arranged in an elevator shaft in a left-right spaced mode, and the front ends of the first supporting column and the second supporting column are movably connected with the fixing device. One end of the abutting mechanism is arranged at the rear ends of the first supporting column and the second supporting column, and the other end abuts against the rear side wall in the elevator shaft. The inner reinforcing mechanism is arranged on the opposite sides of the first supporting column and the second supporting column, and the first supporting column and the second supporting column are connected through the inner reinforcing mechanism. One ends of the side reinforcing mechanisms are arranged on the first supporting column and the second supporting column respectively, and the other ends abut against the left side wall and the right side wall in the elevator shaft respectively. The bearing device is detachably arranged on the top face of the supporting device. The device is stable in supporting, high in safety, convenient to mount and dismount, time-saving and labor-saving.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a building construction protection platform. Background Art

[0002] The elevator shaft is the passage for the car elevator to ascend or descend. The elevator shaft on each floor includes four side walls of a concrete structure, among which the side wall on the front is reserved with a door opening for people to enter and exit during pouring.

[0003] During the construction of the elevator shaft, the construction protection platform plays a vital role. It is not only the main place for construction workers to work, but also a key facility to ensure construction safety and efficiency. Traditionally, in order to achieve this function, construction units often build a scaffolding system inside the elevator shaft and use it as a basis to build an operating platform. This type of traditional construction protection platform usually consists of two parts: a base and a platform frame installed on the base. The base is firmly connected to the side wall of the shaft and the reserved door opening through a series of support structures to achieve the purpose of supporting the weight of the entire platform.

[0004] However, although this traditional construction protection platform meets the basic construction needs to a certain extent, its inherent limitations are also very obvious. The primary problem is that its carrying capacity is relatively limited and it is difficult to withstand the stacking of heavy construction equipment or a large amount of construction materials, which directly increases the risk of safety accidents. In addition, the construction process of the traditional scaffolding platform is cumbersome and complicated, requiring a lot of manpower and time resources. Not only is the construction efficiency low, but the construction difficulty also increases when facing a complex and changeable construction environment, further affecting the construction progress and quality. Summary of the invention

[0005] The purpose of the present invention is to provide a building construction protection platform to solve the technical problems raised in the above background technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A construction protection platform comprises a fixing device, a supporting device and a bearing device, wherein the fixing device is fixedly arranged on one side of an elevator shaft door opening; the supporting device comprises a first supporting column, a second supporting column, an internal reinforcing mechanism, a side reinforcing mechanism and an abutting mechanism; the first supporting column and the second supporting column are arranged horizontally front and back, and are arranged in the elevator shaft at intervals on the left and right sides, the first supporting column and the second supporting column are both H-shaped steel structures, and their waist grooves are located on the left and right sides, and the front ends of the first supporting column and the second supporting column are movably connected to the fixing device; one end of the abutting mechanism is respectively arranged at the rear ends of the first supporting column and the second supporting column, and the other end abuts against the rear side wall in the elevator shaft; the internal reinforcing mechanism is arranged on the side opposite to the first supporting column and the second supporting column, and the first supporting column and the second supporting column are detachably connected; one end of the side reinforcing mechanism is respectively arranged on the first supporting column and the second supporting column, and the other end abuts against the left and right side walls in the elevator shaft; the bearing device is detachably arranged on the top surface of the supporting device.

[0008] Furthermore, the internal reinforcement mechanism includes a first support shaft, a first reinforcement arm, and a first limit block; the first support shaft is vertically fixed in the waist groove on the right side of the first support column; the first reinforcement arm is horizontally arranged left and right, and its left end is rotatably connected to the first support shaft; the first limit block is arranged in the waist groove on the right side of the first support column and is located on the rear side of the first reinforcement arm.

[0009] Furthermore, the internal reinforcement mechanism also includes a second support shaft, a second reinforcement arm, and a second limit block; the second support shaft is vertically fixed in the waist groove on the left side of the second support column, and the second support shaft is located behind the first support shaft; the second reinforcement arm is horizontally arranged left and right, and its right end is rotatably connected to the second support shaft; the second limit block is arranged in the waist groove on the left side of the second support column and is located on the front side of the second reinforcement arm.

[0010] Furthermore, when the first reinforcing arm and the second reinforcing arm are rotated based on the rotation point to be perpendicular to the support column, the rear end face of the first reinforcing arm and the front end face of the second reinforcing arm are in contact, and the front and rear sides of the first reinforcing arm and the second reinforcing arm are provided with through connecting holes, and the first reinforcing arm and the second reinforcing arm are fixedly connected by bolts passing through the connecting holes.

[0011] Furthermore, the side reinforcement mechanism includes a first reinforcement column, a first connecting plate, a first nut, a first screw rod, and a first top block; the first reinforcement column is a groove-shaped structure with openings on the top surface and the left end surface, and its right end is fixed in the waist groove on the left side of the first support column; the first connecting plate is vertically arranged in the middle part of the first reinforcement arm; the first nut is horizontally rotatable left and right and is arranged in the middle of the first connecting plate; the first screw rod is horizontally arranged left and right, and its left end passes through the first nut and extends to the left side; the first top block is arranged inside the first reinforcement column and is fixedly connected to the left end of the first screw rod.

[0012] Furthermore, the side reinforcement mechanism also includes a second reinforcement column, a second connecting plate, a second nut, a second screw rod, and a second top block; the second reinforcement column is a groove-shaped structure with openings on the top surface and the right end surface, and its left end is fixed in the waist groove on the right side of the second support column; the second connecting plate is arranged in the second reinforcement column; the second nut is rotatable left and right and is arranged in the middle of the second connecting plate; the second screw rod is arranged horizontally left and right, and its left end passes through the second nut and extends to the right side; the second top block is arranged inside the second reinforcement column and is fixedly connected to the right end of the second screw rod.

[0013] Furthermore, the abutment mechanism includes a connecting column, a telescopic column, and an abutment block; the connecting column is horizontally arranged at the rear ends of the first support column and the second support column respectively, and is hollow inside and open at the rear end; the telescopic column is arranged inside the connecting column and can move inside the connecting column, and the telescopic column and the connecting column are detachably connected; the abutment block is arranged at the rear end of the telescopic column.

[0014] Further, the fixing device includes a fixing angle iron, a fixing column, a clamping piece, a stud, a first fixing shaft, and a second fixing shaft; two fixing angle irons are provided, and are spaced apart from each other on the left and right sides, and their horizontal sides are connected to the ground of the elevator shaft door opening; the fixing columns are horizontally provided on the ground of the elevator shaft door opening on the left and right sides, and a plurality of through mounting holes are spaced apart on the front and rear side surfaces thereof, and the fixing columns are connected to the vertical sides of the fixing angle irons; the clamping piece is an L-shaped structure, and the stud is horizontally provided on the front end surface of its horizontal side, and the vertical side abuts against the front side wall under the elevator shaft door opening, The clamping part is bolted to the mounting hole of the fixing column through a stud; two clamping parts are arranged at intervals on the left and right, and are located between the two fixing angle irons; the first fixed shaft is arranged horizontally on the left and right, and its right end is fixed on the left side surface of the vertical side of the left clamping part; the second fixed shaft is arranged horizontally on the left and right, and its left end is fixed on the right side wall of the vertical side of the right clamping part; the rear ends of the webs of the first support column and the second support column are provided with semicircular grooves, and the first support column and the second support column are rotatably connected to the first fixed shaft and the second fixed shaft respectively through the semicircular grooves.

[0015] Furthermore, the bearing device includes a bearing plate; the bearing plates are horizontally arranged on the left and right sides, and are provided in plurality, and the front and rear sides of the plurality of bearing plates are attached to each other and laid on the supporting device.

[0016] Furthermore, the bearing device also includes side plates; the side plates are horizontally arranged, and multiple side plates are provided, and the multiple side plates are detachably connected to the left and right sides of the top surfaces of the multiple bearing plates respectively.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can form a reinforced support between the first support column and the second support column by arranging an internal reinforcement mechanism, thereby improving the safety of the construction platform. At the same time, the internal reinforcement mechanism can be rotated into or out of the first support column and the second support column, and can be adjusted according to different elevator shaft sizes. It has a wide range of applications and is easy to store.

[0019] 2. The present invention can provide a side reinforcement mechanism to form a reinforced support for the interval between the first support column and the second support column and the left and right side walls of the elevator shaft, thereby further improving the safety of the construction platform. At the same time, the length of the top block can be adjusted by nuts and screws to adapt to different elevator shaft sizes, further improving the scope of application.

[0020] 3. In the fixing device of the present invention, the supporting device is fixed by installing the fixing angle iron and the fixing column on the outside of the elevator shaft opening, which has high stability and safety.

[0021] 4. In the bearing device of the present invention, by providing side plates, the gap between the bearing plate and the left and right side walls of the elevator shaft can be closed to prevent workers from stepping on empty space or prevent garbage generated during construction from falling and causing safety risks.

[0022] 5. The fixing device, supporting device and bearing device of the present invention can be disassembled separately, which is convenient for assembly and disassembly, saving time and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the installation structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the connection structure between the fixing device and the supporting device of the present invention;

[0026] Figure 4 It is a schematic diagram of the connection structure between the first support column and the first reinforcement arm of the present invention;

[0027] Figure 5 It is a schematic diagram of the connection structure between the second support column and the second reinforcement arm of the present invention;

[0028] Figure 6 It is a schematic diagram of the connection structure between the support column and the side reinforcement mechanism of the present invention;

[0029] Figure 7 is a schematic diagram of the connection structure of the fixing device of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the carrying device of the present invention;

[0031] In the accompanying drawings, 1-fixing device; 11-fixing angle iron; 12-fixing column; 121-mounting hole; 13-clamping piece; 14-stud; 15-first fixing shaft; 16-second fixing shaft;

[0032] 2-support device; 21-first support column; 22-second support column;

[0033] 23-internal reinforcement mechanism; 231-first support shaft; 232-first reinforcement arm; 233-first limit block; 234-second support shaft; 235-second reinforcement arm; 236-second limit block.

[0034] 24-side reinforcement mechanism; 241-first reinforcement column; 242-first connecting plate; 243-first nut; 244-first screw; 245-first top block; 246-second reinforcement column; 247-second connecting plate; 248-second nut; 249-second screw; 2410-second top block;

[0035] 25-abutment mechanism; 251-connecting column; 252-telescopic column; 253-abutment block;

[0036] 26-semicircular groove;

[0037] 3-carrying device; 31-carrying plate; 32-side plate. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling the reader to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0039] A construction protection platform, comprising a fixing device 1, a supporting device 2, and a bearing device 3; the fixing device 1 is fixedly arranged on one side of an elevator shaft doorway; the supporting device 2 is arranged in the elevator shaft, and its front end is movably connected to the fixing device 1, and its rear end abuts against the rear side wall in the elevator shaft; the bearing device 3 is detachably arranged on the top surface of the supporting device 2; the supporting device 2 comprises a first supporting column 21, a second supporting column 22, an inner reinforcing mechanism 23, a side reinforcing mechanism 24, and an abutting mechanism 25; the first supporting column 21 and the second supporting column 22 are arranged horizontally front and back, and are arranged in the elevator shaft at intervals on the left and right, and the first supporting column 21 The first support column 21 and the second support column 22 are both H-shaped steel structures, and their waist grooves are located on the left and right sides. The front ends of the first support column 21 and the second support column 22 are movably connected to the fixing device 1; one end of the abutment mechanism 25 is respectively arranged at the rear ends of the first support column 21 and the second support column 22, and the other end abuts against the rear side wall in the elevator shaft; the internal reinforcement mechanism 23 is arranged on the side opposite to the first support column 21 and the second support column 22, and the first support column 21 and the second support column 22 are detachably connected; one end of the side reinforcement mechanism 24 is respectively arranged on the opposite side of the first support column 21 and the second support column 22, and the other end abuts against the left and right side walls in the elevator shaft.

[0040] The inner reinforcement mechanism 23 includes a first support shaft 231, a first reinforcement arm 232, and a first stopper 233; the first support shaft 231 is vertically fixed in the waist groove on the right side of the first support column 21; the first reinforcement arm 232 is horizontally arranged, and its left end is rotatably connected with the first support shaft 231; the first stopper 233 is arranged in the waist groove on the right side of the first support column 21 and is located at the rear side of the first reinforcement arm 232. The first reinforcement arm 232 can rotate based on the first support shaft 231, so that the first reinforcement arm 232 can rotate into or out of the waist groove of the first support column 21; the first stopper 233 limits the rotation angle of the first reinforcement arm 232, so that the maximum angle of the first stopper 233 rotating out of the first support column 21 does not exceed 90 degrees, so that when the first reinforcement arm 232 rotates out, it is in a mutually perpendicular state with the first support column 21, thereby improving the reinforcement support and protection effect of the first reinforcement arm 232. The first reinforcing arm 232 is rotated into the waist groove of the first supporting column to facilitate storage and reduce space occupied.

[0041] The inner reinforcement mechanism 23 further includes a second support shaft 234, a second reinforcement arm 235, and a second limit block 236; the second support shaft 234 is vertically fixed in the waist groove on the left side of the second support column 22, and the second support shaft 234 is located behind the first support shaft 231; the second reinforcement arm 235 is horizontally arranged left and right, and its right end is rotatably connected with the second support shaft 234; the second limit block 236 is arranged in the waist groove on the left side of the second support column 22 and is located in front of the second reinforcement arm 235; the second reinforcement arm 235 can be rotated based on the second support shaft 234, so that the second reinforcement arm 235 can be rotated into or out of the waist groove of the second support column 22; the second limit block 236 limits the rotation angle of the second reinforcement arm 235, so that the maximum angle of the second limit block 236 from the second support column 22 does not exceed 90°, so that when the second reinforcement arm 235 is rotated out, it is perpendicular to the second support column 22, thereby improving the reinforcement support and protection effect of the second reinforcement arm 235. The second reinforcing arm 235 is rotated into the waist groove of the second supporting column to facilitate storage and reduce space occupied.

[0042] The first limit block 233 and the second limit block 236 are respectively located at the rear side and the front side of the first reinforcing arm 232 and the second reinforcing arm 235, so that the first reinforcing arm 232 and the second reinforcing arm 235 can rotate in different directions and can be rotated synchronously when used at the same time, which is more convenient for operation and prevents motion interference when rotating at the same time.

[0043] The first reinforcing arm 232 and the second reinforcing arm 235 are U-shaped steel structures, and the openings of the first reinforcing arm 232 and the second reinforcing arm 235 of the U-shaped steel structure are respectively oriented toward the front side and the rear side, so as to further improve the supporting effect of the reinforcing arm.

[0044] When the area of ​​the elevator shaft is small, the distance between the first support column 21 and the second support column 22 is small. At this time, you can choose to rotate one of the reinforcing arms, such as rotating the first reinforcing arm 232 to a vertical state with the first support column 21. At this time, the free end of the first reinforcing arm 232 can enter the left waist groove of the second support column 22 to form a reinforced support protection.

[0045] When the first reinforcing arm 232 and the second reinforcing arm 235 rotate to a vertical state with the support column based on the rotation point, the rear end face of the first reinforcing arm 232 and the front end face of the second reinforcing arm 235 are in contact with each other, and the front and rear sides of the first reinforcing arm 232 and the second reinforcing arm 235 are provided with through connecting holes, and the first reinforcing arm 232 and the second reinforcing arm 235 are fixedly connected by bolts passing through the connecting holes.

[0046] When the area of ​​the elevator shaft is large, the interval distance between the first support column 21 and the second support column 22 is large. At this time, the first reinforcement arm 232 and the second reinforcement arm 235 are respectively rotated out, and the first reinforcement arm 232 and the second reinforcement arm 235 are made to contact each other, and then the first reinforcement arm 232 and the second reinforcement arm 235 are connected by bolts, and the first support column 21 and the second support column 22 are connected, and at the same time, an internal support between the first support column 21 and the second support column 22 is formed.

[0047] The inner reinforcement mechanism 23 is provided with a plurality of them at intervals in front and back. The plurality of inner reinforcement mechanisms 23 can improve the reinforcement support and protection effect of the first support column 21 and the second support column 22.

[0048] The side reinforcement mechanism 24 includes a first reinforcement column 241, a first connecting plate 242, a first nut 243, a first screw rod 244, and a first top block 245; the first reinforcement column 241 is hollow inside, with the top surface and the left end surface opened, and its right end is fixedly arranged in the waist groove on the left side of the first support column; the first connecting plate 242 is vertically arranged, and its bottom end is fixedly connected to the top surface of the middle part of the first reinforcement column 241; the first nut 243 is rotatably arranged in the middle part of the first connecting plate 242 through a bearing; the first screw rod 244 is horizontally arranged left and right, and its left end passes through the first nut 243 and extends to the left side; the first top block 245 is an angle iron structure, and its vertical edge faces the left side wall of the elevator shaft. The first top block 245 is arranged inside the first reinforcement column 241, and the right side surface of its vertical edge is fixedly connected to the left end of the first screw rod 244.

[0049] The side reinforcement mechanism 24 also includes a second reinforcement column 246, a second connecting plate 247, a second nut 248, a second screw rod 249, and a second top block 2410; the second reinforcement column 246 is hollow inside, with openings on the top surface and the right end surface, and its left end is fixedly arranged in the waist groove on the right side surface of the second support column; the second connecting plate 247 is vertically arranged, and its bottom end is fixedly connected to the top surface of the middle part of the second reinforcement column 246; the second nut 248 is rotatably arranged in the middle part of the second connecting plate 247 through a bearing; the second screw rod 249 is horizontally arranged left and right, and its left end passes through the second nut 248 and extends to the right side; the second top block 2410 is an angle iron structure, and its vertical edge faces the right side wall of the elevator shaft. The second top block 2410 is arranged inside the second reinforcement column 246, and its vertical edge left side surface is fixedly connected to the right end of the second screw rod 249. According to the area of ​​the elevator shaft, the first nut 243 and the second nut 248 are rotated to drive the first screw 244 and the second screw 249 to move left and right respectively, thereby adjusting the positions of the first top block 245 and the second top block 2410, so that the first top block 245 and the second top block 2410 can abut against the left and right side walls of the elevator shaft, thereby supporting and protecting the gap between the first support column 21 and the second support column 22 and the side walls of the elevator shaft.

[0050] The side reinforcement mechanisms 24 are provided in plurality at intervals in front and back, respectively. The plurality of side reinforcement mechanisms 24 can enhance the spacing support and protection effect between the first support column 21 and the second support column 22 and the side wall of the elevator shaft.

[0051] The abutment mechanism 25 comprises a connecting column 251, a telescopic column 252, and an abutment block 253; the connecting column 251 is horizontally arranged at the rear ends of the first support column 21 and the second support column 22 respectively, and is hollow inside and has an opening at the rear end; the telescopic column 252 is arranged inside the connecting column 251 and can move inside the connecting column 251, and the telescopic column 252 and the connecting column 251 are provided with through positioning holes on the sides, and the telescopic column 252 and the connecting column 251 are connected by bolts through the positioning holes; the abutment block 253 is arranged at the rear end of the telescopic column 252. According to the width of the elevator shaft, the telescopic column 252 is extended out or inserted into the interior of the connecting column 251 and fixed by bolts, so that the abutment block 253 can abut against the rear side wall of the elevator shaft. When adjusting the length of the telescopic column 252, the length of the entire platform in the front-to-back direction should be slightly greater than the width of the elevator shaft, so that the platform is at a certain angle to the horizontal plane, so that the abutment block 253 can abut against the rear side wall of the elevator shaft firmly.

[0052] The fixing device 1 comprises a fixing angle iron 11, a fixing column 12, a clamping member 13, a stud 14, a first fixing shaft 15, and a second fixing shaft 16; the fixing angle iron 11 is provided with two and is arranged at intervals on the left and right sides, and its horizontal side is arranged on the ground of the elevator shaft door opening, and the vertical side faces the rear side, and the upper and lower sides of the horizontal side and the front and rear sides of the vertical side are provided with through fixing holes; the fixing column 12 is horizontally arranged on the ground of the elevator shaft door opening on the left and right sides, and the length of the fixing column 12 should be greater than the length of the elevator shaft door opening, so that the fixing column 12 is stuck outside the elevator shaft door opening, and the front and rear sides of the fixing column 12 are provided with a plurality of through mounting holes 121 at intervals, and the fixing column 12 is bolted to the fixing hole of the vertical side of the fixing angle iron 11 through the mounting hole 121; according to the length of the elevator shaft door opening, holes are drilled on the left and right sides of the ground of the elevator shaft door opening respectively, and the two fixing angle irons 11 are installed on the ground of the elevator shaft door opening through the fixing holes of their horizontal sides, and then bolted to the fixing column 12 through the fixing holes of their vertical sides, so as to fix The fixing column 12 is firmly installed outside the elevator shaft door opening; the clamping piece 13 is an L-shaped structure, and the front end surface of its horizontal edge is horizontally provided with the stud 14, and the stud 14 passes through the mounting hole 121 of the fixing column 12 and is bolted to the fixing column 12. At the same time, the appropriate mounting hole 121 on the fixing column 12 can be selected for installation according to the length of the elevator shaft, and the rear end surface extends backward, and the vertical edge abuts the front side wall under the elevator shaft door opening. Two clamping pieces 13 are arranged at intervals on the left and right, and are located between the two fixed angle irons 11; the first fixed shaft 15 is horizontally arranged on the left and right, and its right end is fixed on the left side surface of the vertical edge of the left clamping piece 13; the second fixed shaft 16 is horizontally arranged on the left and right, and its left end is fixed on the right side wall of the vertical edge of the right clamping piece 13; the rear ends of the webs of the first support column 21 and the second support column 22 are provided with a semicircular groove 26, and the first support column 21 and the second support column 22 are rotatably connected with the first fixed shaft 15 and the second fixed shaft 16 through the semicircular groove 26 respectively. The first support column 21 and the second support column 22 are installed in the elevator shaft by inserting the semicircular grooves 26 of the first support column 21 and the second support column 22 into the first fixed shaft 15 and the second fixed shaft 16 respectively so that the first support column 21 and the second support column 22 can rotate based on the first fixed shaft 15 and the second fixed shaft 16.

[0053] The bearing device 3 includes a bearing plate 31; the bearing plates 31 are horizontally arranged on the left and right sides, and a plurality of bearing plates 31 are provided, and the front and rear sides of the plurality of bearing plates 31 are attached to each other and laid on the supporting device 2 to form a platform for the staff to work;

[0054] The side plates 32 are arranged horizontally and are provided in plurality. Corresponding threaded holes are provided on the left and right sides of the bearing plate 31 and on the side plates 32, and a plurality of threaded holes are provided on the left and right sides of the bearing plate 31 at intervals. The side plates 32 and the bearing plate 31 are connected to each other by screws passing through the threaded holes. The side plates 32 seal the gap between the bearing plate 31 and the left and right side walls of the elevator shaft to prevent workers from stepping on empty space or preventing garbage generated during construction from falling and causing safety risks. At the same time, according to the interval between the bearing plate 31 and the left and right side walls of the elevator shaft, suitable threaded holes can be selected to connect the side plates 32 and the bearing plate 31.

[0055] The working mode of the present invention is:

[0056] First, according to the length of the elevator shaft door opening, holes are drilled on both sides of the ground outside the door opening, and two fixed angle irons 11 are installed on the ground of the door opening through expansion screws, and then the fixed column 12 is horizontally placed between the outside of the door opening and the fixed angle iron 11, and the fixed column 12 is bolted to the fixed angle iron 11. According to the length of the elevator shaft, the studs 14 of the two clamping members 13 are passed through the installation holes 121 of the fixed column 12, and tightened on the other side of the fixed column 12 through the locking nut, so that the clamping member 13 is installed on the fixed column 12, and the front side of the vertical edge of the clamping member 13 is clamped on the lower front side wall in the elevator shaft door opening.

[0057] According to the width of the elevator shaft, the front-to-back length of the support device 2 is adjusted by the telescopic column 252, and the telescopic column 252 and the connecting column 251 are fixed by bolts, so that the front-to-back length of the support device 2 is slightly larger than the width of the elevator shaft. The first support column 21 and the second support column 22 are first inserted into the first fixed shaft 15 of the left clamping member 13 and the second fixed shaft 16 of the right clamping member 13 in a vertical or backward and upward tilted form, respectively, so that the first support column 21 and the second support column 22 are rotated based on the first fixed shaft 15 and the second fixed shaft 16, so that the abutment block 253 of the abutment mechanism 25 abuts against the rear arm of the elevator shaft to form a support in the front-to-back direction.

[0058] According to the interval between the first support column 21 and the second support column 22, when the interval is small, the first reinforcing arm 232 or the second reinforcing arm 235 is rotated out, such as rotating the first reinforcing arm 232 so that the first reinforcing arm 232 and the first support column 21 are in a vertical state, and at the same time, the free end of the first reinforcing arm 232 enters the waist groove of the second support arm to form the internal support protection of the first support column 21 and the second support arm; when the interval is large, the first reinforcing arm 232 and the second reinforcing arm 235 can be rotated out at the same time, so that the first reinforcing arm 232 and the second reinforcing arm 235 are in contact with each other, and are connected to each other by bolts to form the internal support protection of the first support column 21 and the second support arm.

[0059] According to the distance between the first support column 21 and the second support column 22 and the left and right side walls of the elevator shaft, the first nut 243 and the second nut 248 are rotated to drive the first screw 244 and the second screw 249 to move left and right respectively, thereby adjusting the position of the first top block 245 and the second top block 2410 so that the first top block 245 and the second top block 2410 can abut against the left and right side walls of the elevator shaft, thereby supporting and protecting the distance between the first support column 21 and the second support column 22 and the side walls of the elevator shaft.

[0060] After the support device 2 is installed, the bearing plate 31 of the bearing device 3 is laid on the support device 2, and then the side plate 32 is connected to the bearing plate 31 through the threaded hole, and the gap between the bearing plate 31 and the side wall of the elevator shaft is closed to form a construction protection platform.

[0061] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A construction protection platform, comprising a fixing device, a supporting device, and a bearing device, characterized in that: The fixing device is fixedly arranged on one side of the elevator shaft door opening; the supporting device comprises a first supporting column, a second supporting column, an internal reinforcing mechanism, a side reinforcing mechanism, and an abutting mechanism; the first supporting column and the second supporting column are arranged horizontally front and back, and are arranged in the elevator shaft at intervals on the left and right sides, the first supporting column and the second supporting column are both H-shaped steel structures, and their waist grooves are located on the left and right sides, and the front ends of the first supporting column and the second supporting column are movably connected to the fixing device; one end of the abutting mechanism is respectively arranged at the rear ends of the first supporting column and the second supporting column, and the other end abuts against the rear side wall in the elevator shaft; the internal reinforcing mechanism is arranged on the side opposite to the first supporting column and the second supporting column, and the first supporting column and the second supporting column are detachably connected; one end of the side reinforcing mechanism is respectively arranged on the first supporting column and the second supporting column, and the other end abuts against the left and right side walls in the elevator shaft; the bearing device is detachably arranged on the top surface of the supporting device.

2. A construction protection platform according to claim 1, characterized in that: The internal reinforcement mechanism includes a first support shaft, a first reinforcement arm, and a first limit block; the first support shaft is vertically fixed in the waist groove on the right side of the first support column; the first reinforcement arm is horizontally arranged left and right, and its left end is rotatably connected to the first support shaft; the first limit block is arranged in the waist groove on the right side of the first support column and is located on the rear side of the first reinforcement arm.

3. A construction protection platform according to claim 2, characterized in that: The internal reinforcement mechanism also includes a second support shaft, a second reinforcement arm, and a second limit block; the second support shaft is vertically fixed in the waist groove on the left side of the second support column, and the second support shaft is located behind the first support shaft; the second reinforcement arm is horizontally arranged left and right, and its right end is rotatably connected to the second support shaft; the second limit block is arranged in the waist groove on the left side of the second support column and is located on the front side of the second reinforcement arm.

4. A construction protection platform according to claim 3, characterized in that: When the first reinforcing arm and the second reinforcing arm are rotated to a vertical state with the support column based on the rotation point, the rear end face of the first reinforcing arm contacts the front end face of the second reinforcing arm, and the front and rear sides of the first reinforcing arm and the second reinforcing arm are provided with through connecting holes, and the first reinforcing arm and the second reinforcing arm are fixedly connected by bolts passing through the connecting holes.

5. A construction protection platform according to claim 1, characterized in that: The side reinforcement mechanism includes a first reinforcement column, a first connecting plate, a first nut, a first screw rod, and a first top block; the first reinforcement column is a groove-shaped structure with openings on the top surface and the left end surface, and its right end is fixed in the waist groove on the left side of the first support column; the first connecting plate is vertically arranged in the middle part of the first reinforcement arm; the first nut is arranged in the middle of the first connecting plate for horizontal rotation; the first screw rod is arranged horizontally left and right, and its left end passes through the first nut and extends to the left side; the first top block is arranged inside the first reinforcement column and is fixedly connected to the left end of the first screw rod.

6. A construction protection platform according to claim 5, characterized in that: The side reinforcement mechanism also includes a second reinforcement column, a second connecting plate, a second nut, a second screw rod, and a second top block; the second reinforcement column is a groove-shaped structure with openings on the top surface and the right end surface, and its left end is fixed in the waist groove on the right side of the second support column; the second connecting plate is arranged in the second reinforcement column; the second nut is rotatable left and right and is arranged in the middle of the second connecting plate; the second screw rod is arranged horizontally left and right, and its left end passes through the second nut and extends to the right side; the second top block is arranged inside the second reinforcement column and is fixedly connected to the right end of the second screw rod.

7. A construction protection platform according to claim 1, characterized in that: The abutment mechanism includes a connecting column, a telescopic column, and an abutment block; the connecting column is horizontally arranged at the rear ends of the first support column and the second support column respectively, and is hollow inside and open at the rear end; the telescopic column is arranged inside the connecting column and can move inside the connecting column, and the telescopic column and the connecting column are detachably connected; the abutment block is arranged at the rear end of the telescopic column.

8. The construction protection platform according to claim 1, characterized in that: The fixing device comprises a fixing angle iron, a fixing column, a clamping piece, a stud, a first fixing shaft and a second fixing shaft; two fixing angle irons are provided and arranged at intervals on the left and right sides, and the horizontal side thereof is arranged on the ground of the elevator shaft door opening for connection; the fixing column is arranged horizontally on the ground of the elevator shaft door opening on the left and right sides, and a plurality of through mounting holes are arranged at intervals on the front and rear sides thereof, and the fixing column is connected with the vertical side of the fixing angle iron; the clamping piece is an L-shaped structure, the front end surface of the horizontal side thereof is horizontally provided with the stud, the vertical side abuts the front side wall under the elevator shaft door opening, and the clamping piece is bolted to the mounting hole of the fixing column through the stud; two clamping pieces are arranged at intervals on the left and right sides, and are located between the two fixing angle irons; the first fixing shaft is arranged horizontally on the left and right sides, and the right end thereof is fixedly arranged on the left side surface of the vertical side of the left clamping piece; the second fixing shaft is arranged horizontally on the left and right sides, and the left end thereof is fixedly arranged on the right side wall of the vertical side of the right clamping piece; the rear ends of the webs of the first supporting column and the second supporting column are provided with semicircular grooves, and the first supporting column and the second supporting column are rotatably connected with the first fixing shaft and the second fixing shaft respectively through the semicircular grooves.

9. The construction protection platform according to claim 1, characterized in that: The bearing device comprises a bearing plate; the bearing plates are arranged horizontally on the left and right sides, and a plurality of bearing plates are provided, and the front and rear sides of the plurality of bearing plates are attached to each other and laid on the supporting device.

10. A construction protection platform according to claim 9, characterized in that: The bearing device also includes side plates; the side plates are horizontally arranged, and multiple side plates are provided, and the multiple side plates are detachably connected to the left and right sides of the top surfaces of the multiple bearing plates.

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