Construction hoisting device for steel bar truss floor support plate

Abstract

The invention relates to the technical field of construction hoisting of floor support plates, and discloses a construction hoisting device of a steel bar truss floor support plate, which comprises a hoisting piece, the hoisting piece comprises four pulling belts fixedly connected to the bottom of a connecting frame, every two of the four pulling belts form a group, the tail ends of the two groups of pulling belts are fixedly connected with contact plates, and when the belts extend outwards, the contact plates are fixedly connected with the hoisting piece. The first belt drives the first gear to rotate on the inner wall of the shell, the rotating first gear drives the second gear to rotate in the same direction through the transmission gear, and in the process that the first belt extends outwards, due to the fact that the gear ratio of the first gear to the second gear is two to one, when the first gear rotates by two circles, the second gear rotates by one circle, and when the first belt extends outwards, the second gear rotates by one circle. The L-shaped plates are always located at the center position of the extending part of the first belt, so that the distances from the two L-shaped plates to the edge of the floor support plate are equal, the distances from the two L-shaped plates to the center of the floor support plate are also equal, and rapid positioning of the floor support plate is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of construction and hoisting of floor decks, and in particular to a construction and hoisting device for steel bar truss floor decks. Background Art

[0002] As a new type of floor structure material, steel truss floor decking has been increasingly used in construction projects in recent years. It has significant advantages over traditional cast-in-place floor slabs. Steel truss floor decking can be laid directly on beams and subsequently poured without the need for formwork, significantly shortening the construction period. Steel truss floor decking is welded from steel bars and thin steel plates, resulting in a light weight that effectively reduces the overall load on the building. When lifting steel truss floor decking, metal rods are usually inserted into the marked positions of the steel truss floor decking, and then the lifting process is completed using a lifting device. Most of the side walls of steel truss floor decks are not marked, which means that the insertion position needs to be manually measured every time the hoisting is carried out. At this time, the distance from the insertion rod to the center of the floor deck is required to be equal to the distance from the insertion rod to the edge of the floor deck to ensure the balance of pressure at both ends during the lifting process. The time required for measurement will seriously affect the lifting speed of the floor deck. To address the above problems, the following solutions are proposed. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a construction hoisting device for a steel bar truss floor deck, comprising a connecting frame; The lifting mechanism provides an upward pulling force for lifting the floor deck; The measuring mechanism is fixedly connected to the side wall of the connecting frame and is used to quickly measure the equilibrium position of the floor deck when it is hoisted; A limiting mechanism is fixedly connected to the interior of the measuring mechanism and is used to quickly indicate the equilibrium position after the measuring mechanism completes the measurement; When in use, the staff measures the equilibrium position of the floor deck through the measuring mechanism, and then inserts the lifting mechanism into the interior of the floor deck.

[0004] Preferably, the lifting mechanism comprises: A lifting assembly, the lifting assembly is fixedly connected to the bottom of the connecting frame through a lifting piece; The lifting device includes four pulling straps fixedly connected to the bottom of the connecting frame, the four pulling straps are arranged in groups of two, and the ends of the two groups of pulling straps are fixedly connected to contact plates; An adapting assembly, the adapting assembly is fixedly connected to the top of the contact plate through a connecting piece; The connecting piece includes a hydraulic groove formed on the top of the contact plate, and a fixing frame is fixedly connected to the top of the hydraulic groove; Among them, after the measuring mechanism completes the measurement, the contact plate will be inserted into the designated area, and then the pulling belt will generate tension to lift the floor deck.

[0005] Preferably, the measuring mechanism comprises: A measuring assembly, the measuring assembly being fixedly connected to a side wall of the connecting frame via a fixing piece; The fixing member includes a connecting wire fixedly connected to the side wall of the connecting frame, and one end of the connecting wire away from the connecting frame is fixedly connected to the housing; A positioning assembly is rotatably connected to the inner wall of the housing through a support member; The supporting member includes a second gear rotatably connected to the inner wall of the housing, and a second belt is sleeved on the side wall of the second gear; When measuring the stress points of the floor decking, the staff pulls the measuring component to cause it to extend, and completes the positioning of the floor decking through the use of the positioning component and the limiting mechanism.

[0006] Preferably, the limiting mechanism includes: A friction assembly, the friction assembly is fixedly connected to the end of the belt 2 away from the housing through a limiting member; The limiting member includes an L-shaped plate fixedly connected to the end of the belt 2 away from the housing, and a rolling column is rotatably connected to the inner wall of the L-shaped plate; A hook assembly, the hook assembly is fixedly arranged on the side wall of the measuring assembly; The rolling column increases the resistance of the measuring component when it extends outward, so that when the measuring component extends outward, it can drive the second belt to move outward synchronously through the L-shaped plate. The distances from the two L-shaped plates to the edge of the floor decking plate are equal, and the distances from the two L-shaped plates to the center of the floor decking plate are also equal, thereby realizing rapid positioning of the floor decking plate.

[0007] Preferably, the measuring assembly includes a gear 1 rotatably connected to the inner wall of the housing, and a belt 1 is sleeved on the side wall of the gear 1; Among them, the two gears are in a meshing state. During measurement, two staff members each pull one end of belt 1 and walk towards the two ends of the floor deck. At this time, while gear 1 rotates, belt 1 will gradually extend outward.

[0008] Preferably, the positioning assembly includes a transmission gear rotatably connected to the inner wall of the housing, the outer wall of the transmission gear is meshedly connected to the outer wall of gear 2, the outer wall of gear 1 is meshedly connected to the outer wall of the transmission gear, a turbine spring is fixedly connected to the side wall of gear 2, and one end of the turbine spring away from gear 2 is fixedly connected to the inner wall of the housing; Hang one of the hooks on one end of the floor deck, then pick up the other hook and move it to the other end of the floor deck. During this process, as belt 1 extends outward, belt 1 will drive gear 1 to rotate on the inner wall of the shell. The rotating gear 1 drives gear 2 to rotate in the same direction through the transmission gear. Among them, the number of gears of gear 2 is twice that of gear 1. When gear 1 rotates two circles, it will drive gear 2 to rotate one circle through the transmission gear.

[0009] Preferably, the lifting assembly comprises a T-shaped plate fixedly connected to the end of the pulling belt, and a groove is formed on the side wall of the contact plate; After the contact plate is inserted into the balanced position, the worker inserts the T-shaped plate into the inner wall of the groove, so that the connecting frame can drive the contact plate and the floor deck to perform the lifting process through the pulling belt; When belt 1 extends outward, it will pass through the square tube and the rolling column. Due to the increase in contact area, the resistance of belt 1 will increase when passing through the above areas. This resistance will act on the L-shaped plate, so that the L-shaped plate will drive the relaxed belt 2 to be straightened again, avoiding the phenomenon of belt 2 becoming loose due to external pulling force, resulting in inaccurate positioning.

[0010] Preferably, the adaption assembly comprises a sliding hydraulic plate slidably connected to the inner wall of the fixing frame; The interior of the hydraulic tank is always filled with hydraulic oil before use, and the sliding hydraulic plates slide against each other, with the inner wall of the hydraulic tank and the bottom of the sliding hydraulic plates forming a sealed space. After completing the measurement, the contact plate can be inserted into the indicated position of the floor decking, and then the connecting frame drives the floor decking to perform the lifting process through the pulling belt. At this time, the weight of multiple floor decking will act on the steel bars of the floor decking, so that the pressure of the steel bars will act on the top of the sliding hydraulic plate, causing part of the sliding hydraulic plate to slide downward, and the downward-moving sliding hydraulic plate will compress the hydraulic oil inside the hydraulic tank, causing the remaining sliding hydraulic plates to slide upward.

[0011] Preferably, the friction assembly includes a square tube connected to the side wall of the L-shaped plate; When belt 1 passes through the square tube and the roller, the roller increases the resistance of belt 1 to sliding, and the resistance is transmitted to the L-shaped plate through the roller, so that the L-shaped plate carries belt 2 to move outward synchronously. By applying the above-mentioned adaptive components, the contact area between the sliding hydraulic plate and the steel bar is increased when the equipment is in operation, so as to avoid the contact area being too small, which may cause deviation under the influence of external wind.

[0012] Preferably, the hook assembly includes a hook fixedly connected to an end of the belt away from the gear; Among them, after the worker reaches the edge position of the floor decking, he can hang the hook on the edge of the floor decking. After the hook reaches the edge position, the position of the L-shaped plate will be the balanced position of the two ends of the floor decking.

[0013] The present invention has the following beneficial effects: (1) When the present invention is in use, one of the hooks is hung on one end of the floor deck, and then the other hook is picked up and moved to the other end of the floor deck. During this process, as the belt 1 extends outward, the belt 1 will drive the gear 1 to rotate on the inner wall of the shell. The rotating gear 1 drives the gear 2 to rotate in the same direction through the transmission gear. During the process of the belt 1 extending outward, since the gear ratio of the gear 1 to the gear 2 is two to one, that is, when the gear 1 rotates two circles, the gear 2 will rotate one circle. This makes the L-shaped plate always in the center position of the extended part of the belt 1 when the belt 1 extends outward. Through the application of the above components, the distances between the two L-shaped plates and the edge of the floor deck are equal, and the distances between the two L-shaped plates and the center of the floor deck are also equal, thereby realizing the rapid positioning of the floor deck.

[0014] (2) In the present invention, when belt 1 extends outward, belt 1 will pass through the square tube and the rolling column. Due to the increase in the contact area, the resistance of belt 1 will increase when it passes through the above areas. The resistance will act on the L-shaped plate, so that the L-shaped plate drives the relaxed belt 2 to be straightened again, avoiding the phenomenon of belt 2 becoming loose due to external pulling force, resulting in inaccurate positioning.

[0015] (3) After the measurement is completed, the present invention can insert the contact plate into the indicated position of the floor decking plate, and then the connecting frame drives the floor decking plate to perform the lifting process through the pulling belt. At this time, the weight of multiple floor decking plates will act on the steel bars of the floor decking plate, so that the pressure of the steel bars will act on the top of the sliding hydraulic plate, causing part of the sliding hydraulic plate to slide downward, and the downward sliding hydraulic plate will compress the hydraulic oil inside the hydraulic tank, causing the remaining sliding hydraulic plates to slide upward. Through the application of the above components, the contact surface between the sliding hydraulic plate and the steel bars is increased during the operation of the equipment to avoid the contact surface being too small, which will cause the displacement under the blowing of the external wind. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the working state of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a cross-sectional schematic diagram of the lifting assembly of the present invention; Figure 4 It is a cross-sectional schematic diagram of an adaptation component of the present invention; Figure 5 It is a schematic cross-sectional view of the measuring assembly of the present invention; Figure 6 This is a schematic cross-sectional view of a positioning assembly of the present invention; Figure 7 For the present invention Figure 5 A magnified schematic diagram of point A in the middle; Figure 8 For the present invention Figure 5 Enlarged schematic diagram of point B in the middle.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows: In the figure: 1. Lifting mechanism; 11. Lifting assembly; 12. Adaptation assembly; 13. Connecting frame; 111. Pull belt; 112. Contact plate; 113. T-plate; 114. Groove; 121. Hydraulic groove; 122. Fixing frame; 123. Sliding hydraulic plate; 2. Measuring mechanism; 21. Measuring assembly; 22. Positioning assembly; 211. Connecting line; 212. Housing; 213. Gear 1; 214. Belt 1; 221. Gear 2; 222. Belt 2; 223. Transmission gear; 224. Turbine spring; 3. Limiting mechanism; 31. Friction assembly; 32. Hook assembly; 311. L-plate; 312. Rolling column; 313. Square tube; 321. Hook. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] For example 1, please refer to Figure 1 - Figure 8 , the present invention is a construction hoisting device for a steel bar truss floor deck, comprising a connecting frame 13; Lifting mechanism 1, which provides an upward pulling force for lifting the floor deck; Measuring mechanism 2, which is fixedly connected to the side wall of the connecting frame 13 and is used to quickly measure the equilibrium position of the floor deck when it is hoisted; The limiting mechanism 3 is fixedly connected to the inside of the measuring mechanism 2 and is used to quickly indicate the equilibrium position after the measuring mechanism 2 completes the measurement; When in use, the worker measures the equilibrium position of the floor deck through the measuring mechanism 2, and then inserts the lifting mechanism 1 into the interior of the floor deck.

[0021] The lifting mechanism 1 comprises: The lifting assembly 11 is fixedly connected to the bottom of the connecting frame 13 through a lifting member; The lifting device includes four pulling straps 111 fixedly connected to the bottom of the connecting frame 13. The four pulling straps 111 are arranged in pairs, and the ends of the two groups of pulling straps 111 are fixedly connected to contact plates 112. The adapting assembly 12 is fixedly connected to the top of the contact plate 112 through a connecting piece; The connecting member includes a hydraulic groove 121 formed on the top of the contact plate 112, and a fixing frame 122 is fixedly connected to the top of the hydraulic groove 121; After the measuring mechanism 2 completes the measurement, the contact plate 112 will be inserted into the designated area, and then the pulling belt 111 will generate tension to perform the lifting process on the floor deck.

[0022] The measuring mechanism 2 includes: The measuring assembly 21 is fixedly connected to the side wall of the connecting frame 13 through a fixing member; The fixing member includes a connecting wire 211 fixedly connected to the side wall of the connecting frame 13, and an end of the connecting wire 211 away from the connecting frame 13 is fixedly connected to the housing 212; A positioning assembly 22 rotatably connected to the inner wall of the housing 212 via a support member; The support member includes a second gear 221 rotatably connected to the inner wall of the housing 212, and a second belt 222 is sleeved on the side wall of the second gear 221; When measuring the stress points of the floor deck, the staff pulls the measuring component 21 to extend the measuring component 21, and completes the positioning of the floor deck through the use of the positioning component 22 and the limiting mechanism 3.

[0023] Restriction agencies 3 include: The friction assembly 31 is fixedly connected to the end of the belt 222 away from the housing 212 through a limiting member; The limiting member includes an L-shaped plate 311 fixedly connected to the end of the belt 222 away from the housing 212, and a rolling column 312 is rotatably connected to the inner wall of the L-shaped plate 311; A hook assembly 32, the hook assembly 32 is fixedly disposed on a side wall of the measuring assembly 21; The roller 312 increases the resistance of the measuring assembly 21 when it extends outward, so that when the measuring assembly 21 extends outward, it can drive the belt 2 222 to move outward synchronously through the L-shaped plate 311. The distances between the two L-shaped plates 311 and the edge of the floor decking plate are equal, and the distances between the two L-shaped plates 311 and the center of the floor decking plate are also equal, thereby achieving rapid positioning of the floor decking plate.

[0024] For example 2, please refer to Figure 2 - Figure 8 The present invention is a construction hoisting device for a steel truss floor deck. Based on the first embodiment, the measuring assembly 21 includes a gear 213 rotatably connected to the inner wall of a housing 212, and a belt 214 is sleeved on the side wall of the gear 213; Among them, the two gears 213 are in a meshing state. During measurement, two workers each pull one end of a belt 214 and walk toward the two ends of the floor deck. At this time, while the gear 213 rotates, the belt 214 will gradually extend outward.

[0025] The positioning assembly 22 includes a transmission gear 223 rotatably connected to the inner wall of the housing 212. The outer wall of the transmission gear 223 meshes with the outer wall of the second gear 221. The outer wall of the first gear 213 meshes with the outer wall of the transmission gear 223. A turbine spring 224 is fixedly connected to the side wall of the second gear 221. The end of the turbine spring 224 away from the second gear 221 is fixedly connected to the inner wall of the housing 212. Hang one hook 321 on one end of the floor deck, then pick up the other hook 321 and move it toward the other end of the floor deck. During this process, as the belt 1 214 extends outward, the belt 1 214 drives the gear 1 213 to rotate on the inner wall of the housing 212. The rotating gear 1 213 drives the gear 2 221 to rotate in the same direction through the transmission gear 223. The number of gears of the second gear 221 is twice that of the first gear 213 . When the first gear 213 rotates two circles, the second gear 221 is driven to rotate one circle through the transmission gear 223 .

[0026] The lifting assembly 11 includes a T-shaped plate 113 fixedly connected to the end of the pulling belt 111, and a groove 114 is formed on the side wall of the contact plate 112; After the contact plate 112 is inserted into the equilibrium position, the worker inserts the T-shaped plate 113 into the inner wall of the groove 114, so that the connecting frame 13 can drive the contact plate 112 and the floor deck to perform the lifting process through the pulling belt 111; When belt 1 214 extends outward, belt 1 214 will pass through the square tube 313 and the rolling column 312. Due to the increase in the contact area, the resistance of belt 1 214 will increase when passing through the above areas. This resistance will act on the L-shaped plate 311, so that the L-shaped plate 311 drives the relaxed belt 2 222 to be in a straight state again, avoiding the relaxation of belt 2 222 due to external pulling force, resulting in inaccurate positioning.

[0027] The adaption assembly 12 includes a sliding hydraulic plate 123 slidably connected to the inner wall of the fixing frame 122; The interior of the hydraulic tank 121 is always filled with hydraulic oil before use, and the sliding hydraulic plates 123 slide against each other, so that the inner wall of the hydraulic tank 121 and the bottom of the sliding hydraulic plate 123 form a sealed space. After the measurement is completed, the contact plate 112 can be inserted into the indicated position of the floor decking, and then the connecting frame 13 drives the floor decking to perform the lifting process through the pulling belt 111. At this time, the weight of multiple floor deckings will act on the steel bars of the floor decking, so that the pressure of the steel bars will act on the top of the sliding hydraulic plate 123, causing part of the sliding hydraulic plate 123 to slide downward, and the downward-moving sliding hydraulic plate 123 will compress the hydraulic oil inside the hydraulic tank 121, causing the remaining sliding hydraulic plates 123 to slide upward.

[0028] The friction assembly 31 includes a square tube 313 that is connected to the side wall of the L-shaped plate 311; When the belt 1 214 passes through the square tube 313 and the roller 312, the roller 312 increases the resistance of the belt 1 214 to sliding. The resistance is transmitted to the L-shaped plate 311 through the roller 312, causing the L-shaped plate 311 to carry the belt 2 222 outward synchronously. By applying the above-mentioned adaptive component 12, the contact area between the sliding hydraulic plate 123 and the steel bar is increased when the equipment is in operation, so as to avoid the contact area being too small, which may cause the deviation under the blowing of the external wind.

[0029] The hook assembly 32 includes a hook 321 fixedly connected to the end of the belt 1 214 away from the gear 1 213; When the worker reaches the edge of the floor deck, he can hang the hook 321 on the edge of the floor deck. When the hook 321 reaches the edge, the position of the L-shaped plate 311 will be the balanced position of both ends of the floor deck.

[0030] A specific application of this embodiment is: before use, the connecting frame 13 is first installed at the lifting arm position, and then the connecting frame 13 is transported to the desired position by the lifting arm; When in use, one of the hooks 321 is hung on one end of the floor deck, and then the other hook 321 is picked up and moved to the other end of the floor deck. During this process, as the belt 1 214 extends outward, the belt 1 214 will drive the gear 1 213 to rotate on the inner wall of the shell 212, and the rotating gear 1 213 drives the gear 2 221 to rotate in the same direction through the transmission gear 223. During the process of the belt 1 214 extending outward, since the gear ratio of the gear 1 213 and the gear 2 221 is two to one, that is, when the gear 1 213 rotates two circles, the gear 2 221 will rotate one circle. As the belt 1 214 extends outward, when the gear 2 221 rotates, the belt 2 222 will become loose. When the belt 1 214 passes through the square tube 313 and the roller 312, the contact surface increases, which increases the resistance of the belt 1 214 when passing through the above area. The resistance acts on the L-shaped plate 311, causing the L-shaped plate 311 to drive the loose belt 2 222 to be straightened again. This process ensures that the L-shaped plate 311 is always at the center of the outward length of the belt 1 214 during its outward movement. When the hooks 321 are hung on the two ends of the floor deck, the positions of the two L-shaped plates 311 are in the balance area of the floor deck. At this time, the distances between the two L-shaped plates 311 and the edge of the floor deck are equal, and the distances between the two L-shaped plates 311 and the center of the floor deck are also equal. After the measurement is completed, the contact plate 112 can be inserted into the indicated position of the floor deck, such as Figure 2 As shown, the T-shaped plate 113 is clamped inside the groove 114. After confirming that the contact plate 112 is stable, the connecting frame 13 then drives the floor deck through the pulling belt 111 to perform the lifting process; During this process, the weight of multiple floor decks will act on the steel bars of the floor decks, so that the pressure of the steel bars will act on the top of the sliding hydraulic plates 123, causing some of the sliding hydraulic plates 123 to slide downward, and the downward-moving sliding hydraulic plates 123 will compress the hydraulic oil in the hydraulic tank 121, causing the remaining sliding hydraulic plates 123 to slide upward. By using the above components, the contact area between the sliding hydraulic plates 123 and the steel bars is increased during operation of the equipment, avoiding the contact area being too small, which may cause deviation under the blowing of external wind. After reaching the desired position, the staff can remove the hook 321. At this time, the turbine spring 224 will release the accumulated mechanical power, drive the gear 2 221 and the gear 1 213 to rotate, and recover the belt 1 214 and the belt 2 222 remaining outside.

[0031] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A construction hoisting device for a steel truss floor deck, comprising a connecting frame (13), characterized in that: Also includes: A lifting mechanism (1), wherein the lifting mechanism (1) provides an upward pulling force for lifting the floor deck; A measuring mechanism (2), the measuring mechanism (2) being fixedly connected to the side wall of the connecting frame (13) and used for quickly measuring the equilibrium position of the floor deck when it is hoisted; A limiting mechanism (3), the limiting mechanism (3) being fixedly connected to the interior of the measuring mechanism (2) and used for quickly indicating the equilibrium position after the measuring mechanism (2) completes measurement; When in use, a worker measures the equilibrium position of the floor deck using the measuring mechanism (2), and then inserts the lifting mechanism (1) into the interior of the floor deck.

2. The construction hoisting device for a steel bar truss floor deck according to claim 1, characterized in that: The lifting mechanism (1) comprises: A lifting assembly (11), wherein the lifting assembly (11) is fixedly connected to the bottom of the connecting frame (13) via a lifting member; The lifting member comprises four pulling straps (111) fixedly connected to the bottom of the connecting frame (13), the four pulling straps (111) are arranged in groups of two, and the ends of the two groups of pulling straps (111) are fixedly connected to contact plates (112); an adaption assembly (12), the adaption assembly (12) being fixedly connected to the top of the contact plate (112) via a connector; The connecting member comprises a hydraulic groove (121) formed on the top of the contact plate (112), and a fixing frame (122) is fixedly connected to the top of the hydraulic groove (121); After the measuring mechanism (2) completes the measurement, the contact plate (112) is inserted into the designated area, and then the pulling belt (111) generates tension to perform a lifting process on the floor deck.

3. The construction hoisting device for a steel bar truss floor deck according to claim 2, characterized in that: The measuring mechanism (2) comprises: A measuring assembly (21), wherein the measuring assembly (21) is fixedly connected to a side wall of the connecting frame (13) via a fixing member; The fixing member comprises a connecting line (211) fixedly connected to a side wall of the connecting frame (13), and one end of the connecting line (211) away from the connecting frame (13) is fixedly connected to a housing (212); A positioning assembly (22), the positioning assembly (22) being rotatably connected to the inner wall of the housing (212) via a support member; The support member includes a second gear (221) rotatably connected to the inner wall of the housing (212), and a second belt (222) is sleeved on the side wall of the second gear (221); When measuring the stress point of the floor deck, the staff pulls the measuring component (21) to cause the measuring component (21) to extend, and completes the positioning of the floor deck by applying the positioning component (22) and the limiting mechanism (3).

4. The construction hoisting device for a steel bar truss floor deck according to claim 3, characterized in that: The limiting mechanism (3) comprises: A friction assembly (31), wherein the friction assembly (31) is fixedly connected to an end of the second belt (222) away from the housing (212) via a limiting member; The limiting member comprises an L-shaped plate (311) fixedly connected to an end of the second belt (222) away from the housing (212), and a rolling column (312) is rotatably connected to the inner wall of the L-shaped plate (311); A hook assembly (32), wherein the hook assembly (32) is fixedly arranged on a side wall of the measuring assembly (21); The rolling column (312) increases the resistance to the outward extension of the measuring component (21), so that when the measuring component (21) extends outward, it can drive the second belt (222) to move outward synchronously through the L-shaped plate (311).

5. The construction hoisting device for a steel bar truss floor deck according to claim 4, characterized in that: The measuring assembly (21) includes a gear (213) rotatably connected to the inner wall of the housing (212), and a belt (214) is sleeved on the side wall of the gear (213); Among them, the two gears 1 (213) are in a meshing state. During measurement, two workers each pull one end of a belt 1 (214) and walk towards the two ends of the floor deck. At this time, while the gear 1 (213) rotates, the belt 1 (214) will gradually extend outward.

6. The construction hoisting device for a steel bar truss floor deck according to claim 5, characterized in that: The positioning assembly (22) includes a transmission gear (223) rotatably connected to the inner wall of the housing (212), the outer wall of the transmission gear (223) is meshedly connected to the outer wall of the second gear (221), the outer wall of the first gear (213) is meshedly connected to the outer wall of the transmission gear (223), a turbine spring (224) is fixedly connected to the side wall of the second gear (221), and one end of the turbine spring (224) away from the second gear (221) is fixedly connected to the inner wall of the housing (212); The number of gears of gear 2 (221) is twice the number of gears of gear 1 (213). When gear 1 (213) rotates two circles, gear 2 (221) is driven to rotate one circle through the transmission gear (223).

7. The construction hoisting device for a steel bar truss floor deck according to claim 6, characterized in that: The lifting assembly (11) includes a T-shaped plate (113) fixedly connected to the end of the pulling belt (111), and a groove (114) is formed on the side wall of the contact plate (112); After the contact plate (112) is inserted into the equilibrium position, the worker inserts the T-shaped plate (113) into the inner wall of the groove (114), so that the connecting frame (13) can drive the contact plate (112) and the floor decking plate to perform the lifting process through the pulling belt (111).

8. The construction hoisting device for a steel bar truss floor deck according to claim 7, characterized in that: The adaption assembly (12) includes a sliding hydraulic plate (123) slidably connected to the inner wall of the fixing frame (122); The interior of the hydraulic tank (121) is always filled with hydraulic oil before use, and the sliding hydraulic plates (123) slide against each other, and the inner wall of the hydraulic tank (121) and the bottom of the sliding hydraulic plate (123) form a sealed space.

9. The construction hoisting device for a steel bar truss floor deck according to claim 8, characterized in that: The friction assembly (31) comprises a square tube (313) connected through the side wall of the L-shaped plate (311); When the belt 1 (214) passes through the square tube (313) and the roller (312), the roller (312) increases the resistance to the sliding of the belt 1 (214), and the resistance is transmitted to the L-shaped plate (311) through the roller (312), so that the L-shaped plate (311) carries the belt 2 (222) to move outward synchronously.

10. The construction hoisting device for a steel bar truss floor deck according to claim 9, characterized in that: The hook assembly (32) includes a hook (321) fixedly connected to an end of the belt 1 (214) away from the gear 1 (213); When the worker reaches the edge of the floor deck, the worker can hang the hook (321) on the edge of the floor deck. When the hook (321) reaches the edge, the position of the L-shaped plate (311) will be the balance position of the two ends of the floor deck.

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