CN211691568U - A kind of protective device for reserved openings in buildings - Google Patents

Abstract

The utility model discloses a protection device for a reserved hole in a building, which comprises a cover plate covering the reserved hole. The cover plate includes a main board in the middle and auxiliary boards located on the left and right sides of the main board. The shaft hole of the main plate is also sleeved with bearings, the middle of the main plate on the left and right sides of the shaft hole is opened with a sliding cavity outward, and the inner ends of the auxiliary plates are all sleeved in the corresponding sliding cavity and can slide along the sliding cavity, so The reserved hole is provided with a fixing mechanism, the utility model is not easy to be damaged, easy to install, firm and durable, and effectively solves the problem that the existing hole protection can only be used once and cannot meet the recycling of holes of various sizes at the same time. question.

Description

A kind of protective device for reserved openings in buildings

technical field

The utility model belongs to the technical field of building protective devices, in particular to a protective device for reserved openings in buildings.

Background technique

During the construction of reinforced concrete structures, openings will be reserved on the floor between floors for hoisting and transporting building materials. If the openings are not protected in time or improperly protected when not in use, the construction will be affected People leave too many life-threatening hidden dangers such as falling from heights and hitting objects. The usual protective measures are to use plywood and wood as temporary protection for smaller openings. For larger openings, after using plywood and keeping them for temporary protection, it is necessary to set up additional barriers around them. Steel pipe fences are used for protection. However, this kind of hole protection is easy to be damaged, easy to be moved, not strong, and requires frequent maintenance, and the materials used for this protection measure can only be used once. In the later construction process, these are used square wood, Plywood can often only be disposed of as waste or garbage, with a low turnover rate and high material consumption, which will increase construction costs and waste human resources.

Utility model content

Aiming at the inconvenient problems and defects of the existing hole protection, the utility model provides a reserved hole protection device, which is not easy to be damaged, easy to install, firm and durable, and effectively solves the problem of the existing hole protection only Once used, it cannot meet the problem of recycling holes of various sizes at the same time.

The solution adopted by the utility model to solve the technical problem is as follows: a protective device for a reserved hole in a building, comprising a cover plate covering the reserved hole, and the cover plate includes a main board in the middle and auxiliary boards located on the left and right sides of the main board The middle part of the main board is vertically opened with a shaft hole that penetrates the main board and is sleeved with a bearing. The middle part of the main board on the left and right sides of the shaft hole is opened with a sliding cavity outward, and the inner end of the auxiliary board is sleeved in the corresponding sliding cavity. It can slide along the sliding cavity. A fixing mechanism is arranged in the reserved hole. The fixing mechanism includes a fixing frame symmetrically and vertically fixed at the bottom of the outer ends of the auxiliary plates on the left and right sides of the main board, and a telescopic assembly is arranged between the two fixing frames. , the telescopic assembly includes a horizontally arranged horizontally threaded horizontal tube, the left and right ends of the horizontal tube are sleeved with bushings, and the bushings are horizontally connected to the bottom of the main board through a fixing rod. Both ends are provided with screws, the outer ends of the screws at the left and right ends of the horizontal tube are fixedly connected with the adjacent fixing frames, the screw threads at the left and right ends of the horizontal tube are opposite in the thread direction, and the middle of the horizontal tube is provided with A driven gear, a power rod is arranged between the horizontal tube and the main board, a support assembly is arranged in the middle of the power rod, the upper end of the power rod is fixed in the bearing of the main board, and the lower end of the power rod is provided with a driving gear and is connected with the driven gear. They are meshed and connected together. A driving groove is opened downward in the middle of the upper end surface of the power rod. A wrench can be inserted into the driving groove. By turning the wrench to drive the power rod to rotate and drive the horizontal tube to rotate, the two fixed frames can be driven to move in the opposite direction to make them tight respectively. Abut on the side wall of the adjacent reserved opening.

The drive slot is a regular hexagonal slot hole, the wrench is an L-shaped hexagonal wrench, and the upper end face of the power rod is flush with the upper end face of the main board.

The support assembly includes a limit shaft sleeve that is fixedly sleeved on the lower section of the fixed rod, and the left and right sides of the limit shaft sleeve are fixedly connected to the fixed rods on the left and right sides of the transmission rod respectively through the support rod.

The length of the transverse tube is equal to the length of the main board.

The fixing frame includes two supporting columns arranged at intervals in the longitudinal direction and a fixing column connecting the two supporting columns, and the upper ends of the supporting columns are all fixedly connected with the bottom surface of the auxiliary plate.

The height dimension of the support frame is not less than the depth dimension of the reserved hole.

A hollow wrench placing sleeve is laterally fixed on the front end face of the main board, and one end of the wrench can be inserted into the wrench placing sleeve.

Beneficial effects of the present utility model: The present utility model provides a protection device for a reserved opening in a building, comprising:

The cover plate, the fixing mechanism and the telescopic assembly. The screws at both ends of the horizontal tube in the telescopic mechanism are correspondingly and fixedly connected to the fixing brackets under the auxiliary plates on both sides of the main board. The fixing mechanism will be inserted into the reserved hole, and the telescopic assembly will be driven by rotating the power rod through the Allen wrench. When the cover plate is displaced horizontally, when the telescopic assembly pushes the fixing mechanism, the fixing frame in the fixing mechanism will drive the auxiliary plate fixedly connected with it to move in the sliding cavity, thereby adjusting the length of the cover plate.

The utility model is easy to operate, and the distance between the two fixing frames in the fixing assembly and the length of the cover plate can be adjusted arbitrarily within an appropriate range through the telescopic assembly, which is not only easy to install and firm in use, but also realizes recycling and reduces the cost of Labor costs.

Description of drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the present invention.

Fig. 2 is a perspective view showing the connection relationship between the fixing base and the telescopic assembly of the present invention.

Figure 3 is a schematic view of the front structure of the present invention.

FIG. 4 is a schematic diagram of the rear view of the present utility model.

5 is a schematic top view of the structure of the cover plate of the present invention.

FIG. 6 is a schematic diagram of the use state of the present invention.

Labels in the figure: 1 is the main board, 2 is the left auxiliary plate, 3 is the right auxiliary plate, 4 is the support column, 5 is the Allen wrench, 6 is the horizontal tube, 7 is the power rod, 8 is the driving bevel gear, and 9 is the slave Moving bevel gear, 10 is the shaft hole, 11 is the fixed bearing, 12 is the fixed bushing, 13 is the fixed rod, 14 is the support rod, 15 is the left screw, 16 is the right screw, 17 is the left fixing frame, 18 is the right fixing frame, 19 is a fixed column, 20 is an Allen wrench, 21 is a wrench placement sleeve, 22 is a floor plate, and 23 is a limit shaft sleeve.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in FIG. 1, it includes a reserved hole on the floor 22, the reserved hole is covered with a cover plate, the bottom of the cover plate is provided with a fixing mechanism, and the cover plate includes the main board 1 in the middle and the left auxiliary boards located on the left and right sides of the main board. 2 and the right auxiliary plate 3, the middle of the main plate 1 is vertically opened with a shaft hole that penetrates the main plate and is fitted with a fixed bearing 11, the middle of the main plate on the left and right sides of the shaft hole is opened with a sliding cavity outward, and the left auxiliary plate 2 and the right auxiliary plate are The inner ends of 3 are all sleeved in the corresponding sliding cavity and can slide along the sliding cavity. When the left auxiliary plate 2 and the right auxiliary plate 3 are manipulated to move toward or in the opposite direction in the sliding cavity, the length of the cover can be adjusted.

As shown in Figure 1 and Figure 6, when the cover plate is covered on the reserved hole, the fixing mechanism is inserted into the reserved hole, and the fixing mechanism includes the left auxiliary plate and the left auxiliary plate which is symmetrically and vertically fixed at the bottom of the outer end of the auxiliary plate. 17 and the right fixing frame 18, the left fixing frame 17 and the right fixing frame 18 all include two supporting columns 4 arranged at a longitudinal interval and a fixing column 19 which is fixedly connected to the two supporting columns. Fixed and welded together, the height dimension of the support column 4 is not less than the depth dimension of the reserved hole.

As shown in FIG. 3, a telescopic assembly is provided between the left fixing frame 17 and the right fixing frame 18. The telescopic assembly includes a horizontally arranged horizontal tube 6 with threads inside. The length of the horizontal tube 6 is equal to the length of the main board 1, and the horizontal Both the left and right ends of the tube 6 are sheathed with a fixed shaft sleeve 12, and the upper end of the fixed shaft sleeve 12 is welded with a fixed rod 13, and the upper end of the fixed rod 13 is vertically welded to the bottom of the main board 1, and the left and right ends of the horizontal tube 6 are installed respectively. There are a left screw 15 and a right screw 16. The thread directions of the left screw 15 and the right screw 6 are opposite. The left end face of the left screw 15 is welded to the middle of the fixing column 19 on the left fixing frame 17. The right end face of the right screw 16 is fixed and welded to the right fixed The middle of the fixed column 19 on the frame 18, when the horizontal tube 6 is rotated, since the thread directions of the left screw 15 and the right screw 16 are opposite, the depth of the left screw 15 and the right screw 16 in the horizontal tube 6 can be adjusted at the same time. When the depth of the left screw 15 and the right screw 16 is in the horizontal tube 6, the left screw 15 and the right screw 16 will drive the left auxiliary plate 2 and the right auxiliary plate 3 in the sliding cavity through the left fixing frame 17 and the right fixing frame 18 respectively. Move toward or away from each other to adjust the length of the cover.

A driven bevel gear 9 is arranged in the middle of the horizontal tube 6, a power rod 7 is arranged between the horizontal tube 6 and the main board 1, and the middle of the upper end face of the power rod 7 is provided with a driving slot hole in the shape of a regular hexagon. The drive slot is well-stressed, the L-shaped Allen key 20 can be inserted into the drive slot, the upper end of the power rod 7 is fixed in the fixed bearing 11 of the main board 1, and the upper end face of the power rod 7 is flush with the upper end face of the main board 1. The lower end of the power rod 7 is provided with a driving bevel gear 8 and is meshed with the driven bevel gear 9. By turning the Allen key 20, the power rod 7 can be driven to rotate. When the power rod 7 rotates, it will pass the driving bevel gear 8 at the bottom. Drive the driven bevel gear 9 to rotate. Since the fixed bushings 9 at both ends of the horizontal tube 6 are fixedly connected to the main board 1 through the fixing rods 13 , the rotation of the driven bevel gear 9 will drive the horizontal tube 6 in the fixed bushing 11 . Horizontal rotation, when the horizontal tube 6 rotates, the left screw 15 and the right screw 16 will respectively drive the left fixing frame 17 and the right fixing frame 18 to move in the opposite or reverse direction in the reserved hole. When the left fixing frame 17 and the right fixing frame 18 are in the When the reserved hole moves in the opposite direction or in the opposite direction, the left fixing frame 17 and the right fixing frame 18 will respectively drive the left auxiliary plate 2 and the right auxiliary plate 3 to move in the opposite or opposite direction in the sliding cavity. When the frame 18 moves in the opposite direction, the left fixing frame 17 and the right fixing frame 18 will be closely contacted on the left side wall and the right side wall of the reserved hole, respectively, because the height dimension of the support column 4 is not less than the depth of the reserved hole. size, so when a foreign object collides with the cover, the cover will not be displaced horizontally.

The support assembly includes a limit shaft sleeve 23 that is fixedly sleeved on the lower section of the power rod 7. The left and right sides of the limit shaft sleeve 23 are fixedly connected to the fixed rods 13 on the left and right sides of the power rod 7 through the support rod 14 respectively. The position of the lower end of the power rod 7 is fixed, so when the power rod 7 rotates, the power rod 7 will not be displaced in the radial direction.

As shown in FIG. 4 , a hollow wrench placement sleeve 21 is laterally fixed and welded on the rear end surface of the main board 1. When the length of the cover plate does not need to be adjusted, the Allen wrench 20 can be pulled out from the drive slot and placed on the wrench place. Inside the sleeve 21, it is convenient for the storage of the inner hexagon board.

To apply the device of this embodiment to the protection of the reserved openings in the building, first assemble the device, then take out the Allen wrench 20 in the wrench placing sleeve 21 and insert one end into the drive slot, and let the Turn the Allen key 20 clockwise to the length of the reserved hole to drive the power rod 7 to rotate clockwise. When the power rod 7 rotates clockwise, it will drive the driven bevel gear 9 to rotate clockwise through the driving bevel gear 8 at the bottom, and the driven bevel gear 9. Turning clockwise will drive the horizontal tube 6 to rotate clockwise and horizontally. When the horizontal tube 6 rotates clockwise horizontally, the left screw 15 and the right screw 16 will respectively drive the left fixing frame 17 and the right fixing frame 18 to move in the opposite direction, and the left fixing frame 17 When moving in the opposite direction to the right fixing frame 18, it will drive the left auxiliary plate 2 and the right auxiliary plate 3 to move in the opposite direction in the sliding cavity, thereby increasing the length of the cover plate.

When the length of the cover plate is greater than the length of the reserved hole, cover the cover plate on the reserved hole. At this time, the fixing mechanism is inserted into the reserved hole. Continue to turn the Allen key 20 clockwise to adjust the distance between the left fixing frame 17 and the right fixing frame 18. The distance between the left fixing frame 17 and the right fixing frame 18 is in close contact with the left side wall and the right side wall of the reserved hole respectively, so that the Allen wrench 20 is pulled out from the drive slot and placed on the wrench. The installation of the device is completed at this time.

Claims (7)

1. A protection device for reserved holes in buildings comprises a cover plate covering the reserved holes, and is characterized in that the cover plate comprises a main plate and auxiliary plates, wherein the main plate is arranged in the middle of the cover plate, the auxiliary plates are positioned on the left side and the right side of the main plate, a shaft hole penetrating through the main plate is vertically formed in the middle of the main plate, bearings are sleeved on the shaft hole, sliding cavities are outwards formed in the middle of the main plate on the left side and the right side of the shaft hole, the inner ends of the auxiliary plates are sleeved in the corresponding sliding cavities and can slide along the sliding cavities, a fixing mechanism is arranged in the reserved holes and comprises fixing frames, the fixing frames are symmetrically and vertically fixedly arranged at the bottoms of the outer ends of the auxiliary plates on the left side and the right side of the main plate, a telescopic assembly is arranged between the two fixing frames, the telescopic assembly comprises a horizontal pipe and a thread, the outer end of both ends screw rod all is in the same place with adjacent mount fixed connection about violently managing, the screw thread opposite direction of both ends screw rod about violently managing, the middle part of violently managing is equipped with driven gear, violently being equipped with the power pole between pipe and the mainboard, the middle part of power pole is equipped with supporting component, and the upper end of power pole is fixed in the bearing of mainboard, and the lower extreme of power pole is equipped with the driving gear and links together with the driven gear meshing, the up end middle part of power pole has opened the driving groove downwards, and the spanner can be inserted to the driving groove, drives through rotating spanner drive power pole and rotates to drive violently to manage and rotate and to order about two mount antiport and make it closely push up respectively and touch on adjacent reservation.

2. The building reserved hole protection device as claimed in claim 1, wherein the driving groove is a regular hexagonal groove hole, the wrench is an L-shaped inner hexagonal wrench, and the upper end face of the power rod is flush with the upper end face of the main plate.

3. The protection device for the reserved hole of the building as claimed in claim 1, wherein the support assembly comprises a limiting shaft sleeve fixedly sleeved on the lower section of the power rod, and the left side and the right side of the limiting shaft sleeve are fixedly connected with fixing rods on the left side and the right side of the power rod respectively through support rods.

4. A building reserved hole protector as claimed in claim 1, wherein the length of the cross tube is equal to the length of the main plate.

5. The building reserved hole protection device as claimed in claim 1, wherein the fixing frame comprises two support columns arranged at intervals longitudinally and a fixing column for connecting the two support columns, and the upper ends of the support columns are fixedly connected with the bottom surface of the auxiliary plate.

6. The building reserved hole protection device as claimed in claim 1, wherein the height dimension of the fixing frame is not less than the depth dimension of the reserved hole.

7. The protection device for the reserved hole of the building as claimed in claim 2, wherein a hollow wrench placing sleeve is transversely and fixedly arranged on the front end face of the main board, and one end of a wrench can be inserted into the wrench placing sleeve.

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