Reinforcing screw rod for constructional column in narrow and small space

Abstract

The utility model discloses a reinforcing screw rod for a constructional column in a narrow space, which relates to the technical field of building construction, has the advantages that a locking plate can be conveniently mounted at one end of the screw rod entering an air shaft, and the screw rod can be conveniently mounted, and adopts the technical scheme that the reinforcing screw rod comprises a threaded rod body of which one end enters a closed space of the air shaft, and a hollow cavity is formed in the rod body; two communicating grooves which are perpendicular to the axis of the hollow cavity and communicate with the hollow cavity are formed in the cavity wall of the end, located in the closed space of the air shaft, of the hollow cavity, the two communicating grooves are oppositely distributed, locking plates are slidably connected into the two communicating grooves correspondingly, and a driving piece enabling the locking plates to move out of or move into the communicating grooves is arranged on the rod body; a fastening block is in threaded connection with the position, outside the air shaft, of the rod body.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a reinforcing screw rod for a structural column in a narrow space. Background Art

[0002] Air shaft is a common functional structure in buildings with vertical smoke exhaust systems, such as smoke exhaust shafts and pressurized air supply shafts. Since the interior of the air shaft is a closed space without door and window openings, the conventional construction method of blocks + concrete columns is used. Figure 5 When pouring the concrete structural column 11, a template 12 needs to be installed. The template 12 is generally fixed to the block 1 by a screw. Since the inside of the air shaft is a closed space and there is no bottom plate, it is difficult to install the locking plate 13 threadedly connected to the screw at the end of the screw entering the closed space of the air shaft, and it is difficult to install the screw on the air shaft. Therefore, the applicant has developed a new technical solution in the actual production process to solve the above technical problems. Utility Model Content

[0003] The utility model aims to provide a reinforcing screw rod for a structural column in a narrow space, which has the advantages of conveniently installing a locking plate at one end of the screw rod entering the air shaft, thereby facilitating the installation of the screw rod.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model provides a screw rod for reinforcing a structural column in a narrow space, comprising a threaded rod body with one end entering into a closed space of an air shaft, a hollow cavity being arranged in the rod body, a connecting groove which is perpendicular to and connected to the axis of the hollow cavity and is provided on a cavity wall at one end of the hollow cavity located in the closed space of the air shaft, two connecting grooves are provided and are relatively distributed, locking plates are slidably connected in the two connecting grooves, a driving member which enables the locking plate to be moved out of or into the connecting groove is provided on the rod body, and a fastening block is threadedly connected to the rod body at a position outside the air shaft.

[0006] By adopting the above technical solution, holes are first drilled on the blocks on the air shaft to facilitate the passage of the rod. If a fixed template is to be installed, the template will generally be on the outside of the block. If the inside is also installed, there will also be a template on the inside to facilitate the template to surround the structural column. At this time, holes are also drilled on the template to facilitate the passage of the rod. The rod that has passed through moves the locking plate out of the connecting groove through the driving member. The user rotates the fastening block outside the air shaft to rotate the fastening block toward the block of the air shaft, thereby gradually approaching the inside of the block or the inside template until the fastening block conflicts with the template of the outer wall of the air shaft. At this time, the purpose of facilitating the installation of the locking plate at the end of the screw entering the air shaft is achieved, and it is convenient to install the screw, thereby fastening the position of the template.

[0007] Preferably, the driving member comprises a push rod slidably connected in the hollow cavity, a driving hole connected to the hollow cavity and coaxially distributed is formed at one end of the rod body away from the connecting groove in the hollow cavity, the diameter of the driving hole is larger than the diameter of the hollow cavity, one end of the driving hole extends out of one end of the rod body, one end of the push rod extends into the driving hole and is fixedly connected to a slider slidably connected in the driving hole, and a power member for driving the slider to reciprocate in the driving hole is provided in the driving hole;

[0008] One end of the two locking plates is in contact with one end of the push rod, and a driven inclined surface is provided on the contacting end. The push rod is provided with an active inclined surface that cooperates with the driven inclined surface at the end that contacts the locking plate. A guide block is provided on the driven inclined surface, and a guide groove for sliding the guide block is provided on the active inclined surface. The guide block is a dovetail block, and the guide groove is a dovetail groove.

[0009] Preferably, the power part includes a compression spring arranged on the slider and sleeved outside the push rod, the end of the compression spring away from the slider abuts against the hole wall of the driving hole, a rotating rod is rotatably connected in the driving hole, one end of the rotating rod extends out of the outer wall of the rod body, and the other end is provided with a driving column with a diameter smaller than the rotating rod, the outer wall of the driving column is provided with two driving plates, the two driving plates are relatively distributed, the slider is provided with an entry hole for the driving column to enter on the side facing the driving column, the side wall of the slider is provided with inclined grooves that slide with the two driving plates away from one end of the rotating rod respectively, and a concave groove connecting the two inclined grooves, one groove wall of the inclined groove extends obliquely, and the other groove wall is distributed along the length direction of the slider, and the above two groove walls intersect at one point.

[0010] Preferably, the power member comprises a connecting rod rotatably connected to the side of the slider away from the push rod, the connecting rod is threadedly connected to the wall of the driving hole, and one end of the connecting rod extends out of the outer wall of the rod body.

[0011] Preferably, a thread connected to the connecting rod thread is provided on the inner wall of the driving hole, and the thread is distributed close to the hole opening of the driving hole and away from the sliding block.

[0012] Preferably, the connecting rod is provided with a rubber sleeve at one end extending out of the driving hole.

[0013] Preferably, the fastening block is in the shape of an elongated strip, and both ends are pointed.

[0014] The beneficial effects of the utility model are as follows: first, holes are drilled on the blocks on the air shaft to facilitate the passage of the rod body. If a fixed template is to be installed, the template will generally be on the outside of the block. If the inside is also installed, there will also be a template on the inside to facilitate the template surrounding the structural column. At this time, holes are also drilled on the template to facilitate the passage of the rod body. The rod body that has passed through moves the locking plate out of the connecting groove through the driving member. The user rotates the fastening block outside the air shaft to rotate the fastening block toward the block direction of the air shaft, thereby gradually making the locking plate approach the inside of the block or the inside template until the fastening block conflicts with the template on the outer wall of the air shaft. At this time, the purpose of facilitating the installation of the locking plate at the end of the screw entering the air shaft is achieved, thereby fastening the position of the template. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of this embodiment;

[0017] Figure 2 This is a schematic diagram of the structure of the rotating rod of this embodiment;

[0018] Figure 3 This is a schematic diagram of the structure of the driving column in this embodiment;

[0019] Figure 4 This is a schematic diagram of the structure of the inclined groove in this embodiment;

[0020] Figure 5 This is a schematic diagram of the existing structure.

[0021] Description of reference numerals:

[0022] In the figure: 1, building block; 11, structural column; 12, template; 13, locking plate; 2, rod body; 21, hollow cavity; 22, connecting groove; 23, fastening block; 24, push rod; 241, driving hole; 242, slider; 25, driven inclined surface; 251, active inclined surface; 26, compression spring; 27, rotating rod; 271, driving column; 272, driving plate; 273, entry hole; 28, inclined groove; 281, concave groove; 282, connecting rod; 283, rubber sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] A small space structural column reinforcement screw, such as Figure 5 and Figure 1 , including a threaded rod body 2 with one end entering into the closed space of the wind shaft. At this time, the closed space of the wind shaft refers to the annular space of the block 1 and the structural column 11. At this time, the block 1 forms the four annular side walls of the wind shaft, and the structural column 11 is at the corner between the two side walls. A hollow cavity 21 is arranged in the rod body 2. The cavity wall of the hollow cavity 21 at one end in the closed space of the wind shaft is provided with a connecting groove 22 which is perpendicular to and connected to the axis of the hollow cavity 21. There are two connecting grooves 22 and they are relatively distributed. Locking plates 13 are slidably connected in the two connecting grooves 22. A driving member that enables the locking plate 13 to move out of or into the connecting groove 22 is provided on the rod body 2. A fastening block 23 is threadedly connected to the rod body 2 at a position outside the wind shaft.

[0025] like Figure 5 and Figure 1 First, a hole is drilled on the block 1 on the air shaft to facilitate the passage of the rod body 2. If a fixed template 12 is to be installed, the template 12 is generally on the outside of the block 1. If the inside is also installed, there will also be a template 12 on the inside to facilitate the template 12 to surround the structural column 11. At this time, a hole is also drilled on the template 12 to facilitate the passage of the rod body 2. The passed rod body 2 moves the locking plate 13 out of the connecting groove 22 through the driving member. The user rotates the fastening block 23 outside the air shaft to rotate the fastening block 23 toward the block 1 of the air shaft, thereby causing the locking plate 13 to gradually approach the inside of the block 1 or the inside template 12 until the fastening block 23 conflicts with the template 12 on the outer wall of the air shaft. At this time, the purpose of facilitating the installation of the locking plate 13 at the end of the screw entering the air shaft is achieved, and it is convenient to install the screw, thereby fastening the position of the template 12.

[0026] like Figure 5 and Figure 1 The driving member includes a push rod 24 slidably connected in the hollow cavity 21. A driving hole 241 communicating with the hollow cavity 21 and coaxially distributed is opened at one end of the rod body 2 in the hollow cavity 21 away from the connecting groove 22. The diameter of the driving hole 241 is larger than the diameter of the hollow cavity 21. One end of the driving hole 241 extends out of one end of the rod body 2. One end of the push rod 24 extends into the driving hole 241 and is fixedly connected to a slider 242 slidably connected in the driving hole 241. A power member for driving the slider 242 to reciprocate in the driving hole 241 is provided in the driving hole 241.

[0027] like Figure 5 and Figure 1 , one end of the two locking plates 13 is in contact with one end of the push rod 24, and a driven inclined surface 25 is provided at the in contacting end. The push rod 24 is provided with an active inclined surface 251 that cooperates with the driven inclined surface 25 at the end that conflicts with the locking plate 13. The end of the two active inclined surfaces 251 that is closer to each other is located at the end of the push rod 24. A guide block is provided on the driven inclined surface 25, and a guide groove (not shown) for the guide block to slide is provided on the active inclined surface 251. The guide block is a dovetail block, and the guide groove is a dovetail groove. The purpose of this design is to facilitate the cooperation of the guide block and the guide groove, so that one end of the two locking plates 13 is pushed out and automatically returns to the connecting groove 22 as the push rod 24 moves. The fastening block 23 is long and pointed at both ends, which is convenient for the user to rotate the fastening block 23.

[0028] like Figure 5 and Figure 1 Working principle of the driving member: when the power member pushes the slider 242 to slide in the driving hole 241 toward the push rod 24, the push rod 24 is also driven to move together. At this time, the active inclined surface 251 on the push rod 24 squeezes the two driven inclined surfaces 25, so that the two driven inclined surfaces 25 gradually move away from each other, so that the two locking plates 13 also gradually move away from each other, so that one end of the two locking plates 13 moves out of the notch of the connecting groove 22; when the power member drives the slider 242 to move in the opposite direction, the active inclined surface 251 cooperates with the guide block and the guide groove, so that the two locking plates 13 gradually approach each other, thereby facilitating the two locking plates 13 to move into the connecting groove 22.

[0029] like Figure 5 and Figure 1 The power member includes a connecting rod 282 rotatably connected to the side of the slider 242 away from the push rod 24, the connecting rod 282 is coaxial with the driving hole 241, the connecting rod 282 is threadedly connected to the hole wall of the driving hole 241, and one end of the connecting rod 282 extends out of the outer wall of the rod body 2. The inner wall of the driving hole 241 is provided with a thread threadedly connected to the connecting rod 282, and the thread is distributed close to the hole of the driving hole 241 and away from the slider 242. The purpose of this design is to reduce the influence of the thread on the movement of the slider 242.

[0030] like Figure 5 and Figure 1 The connecting rod 282 is provided with a rubber sleeve 283 at one end extending out of the driving hole 241. When the user rotates the connecting rod 282, the connecting rod 282 drives the slider 242 to move back and forth in the driving hole 241, thereby driving the push rod 24 to move back and forth, thereby realizing the moving out and in of the locking plate 13.

[0031] like Figure 2 and Figure 3 and Figure 4Alternatively, the power member includes a compression spring 26 disposed on the slider 242 and sleeved outside the push rod 24, the end of the compression spring 26 away from the slider 242 abuts against the hole wall of the driving hole 241, a rotating rod 27 is rotatably connected in the driving hole 241, one end of the rotating rod 27 extends out of the outer wall of the rod body 2, and the other end is provided with a driving column 271 with a diameter smaller than the rotating rod 27, the outer wall of the driving column 271 is provided with two driving plates 272, the two driving plates 272 are relatively distributed, and the slider 242 moves toward the driving column 2 An entry hole 273 for the driving column 271 to enter is provided on one side of 71, and an inclined groove 28 that slides with the two driving plates 272 away from one end of the rotating rod 27 and a concave groove 281 connecting the two inclined grooves 28 are provided on the side wall of the slider 242. At this time, two concave grooves 281 are evenly spaced on the side wall of the slider 242. Two inclined grooves 28, one groove wall of the inclined groove 28 extends obliquely, and the other groove wall is distributed along the length direction of the slider 242, and the above two groove walls intersect at one point.

[0032] like Figure 2 and Figure 3 and Figure 4 When the slider 242 needs to be pushed to move, the user rotates the rotating rod 27 so that the rotating rod 27 drives the driving column 271 to rotate, and the two driving plates 272 on the outer wall of the Shudie driving column 271 rotate together. At this time, when the driving plate 272 moves along the groove wall of the inclined groove 28 toward the concave groove 281, the driving plate 272 gradually pushes the slider 242 away from the rotating rod 27, which facilitates the slider 242 to move toward the push rod 24. The compression spring 26 is in a compressed state and has elasticity. When the driving plate 272 moves toward the concave groove 281 along the groove wall of the inclined groove 28, the driving plate 272 gradually pushes the slider 242 away from the rotating rod 27. When 272 is located on the concave groove 281, the moving distance of the slider 242 is the largest. At this time, one end of the locking plate 13 is moved out of the notch of the connecting groove 22. When the driving plate 272 moves from the concave groove 281 to the inclined groove 28, the elastic restoring force of the compression spring 26 pushes the slider 242 toward the rotating rod 27, thereby facilitating the locking plate 13 to move into the connecting groove 22. At this time, the driving plate 272 is located at the intersection of the inclined edge of the inclined groove 28 and the edge distributed along the length direction of the slider 242.

[0033] In addition, the present application is not limited to use in ventilation shaft construction, but is also applicable to closed shafts such as stairwells.

[0034] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A reinforcing screw rod for a structural column in a narrow space, characterized in that: The invention comprises a rod body (2) with a thread and one end of which enters into a closed space of an air shaft. A hollow cavity (21) is arranged in the rod body (2). A connecting groove (22) which is perpendicular to and connected to the axis of the hollow cavity (21) is provided on a cavity wall at one end of the hollow cavity (21) located in the closed space of the air shaft. Two connecting grooves (22) are provided and are arranged opposite to each other. A locking plate (13) is slidably connected in each of the two connecting grooves (22). A driving member for moving the locking plate (13) out of or into the connecting groove (22) is provided on the rod body (2). A fastening block (23) is threadedly connected to the rod body (2) at a position outside the air shaft.

2. A narrow space structural column reinforcement screw as claimed in claim 1, characterized in that: The driving member comprises a push rod (24) slidably connected in the hollow cavity (21); a driving hole (241) which is connected to the hollow cavity (21) and coaxially distributed is formed on one end of the rod body (2) away from the connecting groove (22) in the hollow cavity (21); the diameter of the driving hole (241) is larger than the diameter of the hollow cavity (21); one end of the driving hole (241) extends out of one end of the rod body (2); one end of the push rod (24) extends into the driving hole (241) and is fixedly connected to a slider (242) slidably connected in the driving hole (241); a power member is provided in the driving hole (241) for driving the slider (242) to reciprocate in the driving hole (241); One end of each of the two locking plates (13) contacts one end of the push rod (24), and a driven inclined surface (25) is provided on the contacting end; the push rod (24) is provided with an active inclined surface (251) cooperating with the driven inclined surface (25) at the end contacting the locking plate (13); a guide block is provided on the driven inclined surface (25); a guide groove for sliding the guide block is provided on the active inclined surface (251); the guide block is a dovetail block, and the guide groove is a dovetail groove.

3. A narrow space structural column reinforcement screw as claimed in claim 2, characterized in that: The power member comprises a compression spring (26) arranged on the slider (242) and sleeved outside the push rod (24); one end of the compression spring (26) away from the slider (242) abuts against the hole wall of the driving hole (241); a rotating rod (27) is rotatably connected in the driving hole (241); one end of the rotating rod (27) extends out of the outer wall of the rod body (2); the other end is provided with a driving column (271) having a smaller diameter than the rotating rod (27); the outer wall of the driving column (271) is provided with two driving plates (272); the two driving plates (272) The slider (242) is relatively distributed with respect to the two driving plates (272), the slider (242) is provided with an entry hole (273) for the driving column (271) to enter, and the side wall of the slider (242) is provided with inclined grooves (28) that slide with the two driving plates (272) away from one end of the rotating rod (27) and a concave groove (281) connecting the two inclined grooves (28), one groove wall of the inclined groove (28) extends obliquely, and the other groove wall is distributed along the length direction of the slider (242), and the above two groove walls intersect at a point.

4. A narrow space structural column reinforcement screw as claimed in claim 2, characterized in that: The power member comprises a connecting rod (282) rotatably connected to a side of the slider (242) away from the push rod (24), the connecting rod (282) being threadedly connected to a hole wall of the driving hole (241), and one end of the connecting rod (282) extending out of an outer wall of the rod body (2).

5. A narrow space structural column reinforcement screw as claimed in claim 4, characterized in that: The inner wall of the driving hole (241) is provided with a thread that is threadably connected to the connecting rod (282), and the thread is distributed close to the opening of the driving hole (241) and away from the sliding block (242).

6. A narrow space structural column reinforcement screw as claimed in claim 5, characterized in that: The connecting rod (282) is provided with a rubber sleeve (283) at one end extending out of the driving hole (241).

7. A narrow space structural column reinforcement screw as claimed in claim 1, characterized in that: The fastening block (23) is in the shape of an elongated strip, and has pointed ends.

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