Steel structure stand column bottom jacking device

Abstract

The utility model provides a steel structure stand column bottom tightening device which comprises a first abutting piece, a second abutting piece and an adjuster, the first abutting piece at least comprises a first inclined face and a first abutting face, and the second abutting piece at least comprises a second inclined face and a second abutting face. The first abutting face and the second abutting face are oppositely arranged, and the first inclined face and the second inclined face are connected in a sliding mode. The adjuster is connected with the first abutting piece and the second abutting piece and can drive the first inclined face and the second inclined face to slide relatively so as to change the distance between the first abutting face and the second abutting face. The utility model provides a device for abutting against and fixing the bottom of a steel structure stand column on the inner side of a cup opening, the stability of the steel structure stand column can be improved, the steel structure stand column is prevented from inclining due to external disturbance before grouting, the structural damage caused by secondary adjustment or serious inclination is reduced, the construction efficiency is improved, and the construction risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a bottom clamping device for steel structure columns. Background Technology

[0002] During the construction of a steel structure factory building, after the steel structure columns are placed inside the cup-shaped opening, they are usually fixed with guy ropes, and steel wedges are installed at the cup-shaped opening to press against the inner wall of the cup-shaped opening and the outer wall of the steel structure columns, so as to play a certain supporting role.

[0003] The above construction method has the following disadvantages: (1) The steel structure column is only fixed by pulling the guy rope and the steel wedges in the middle and lower part, but there is no fixing measure at the bottom, so its stability is low. In general construction, all steel structure columns are placed inside the cup and then grouting is done. If extreme weather such as typhoons occurs before grouting, the steel structure column is easily blown off and needs to be readjusted, which not only delays the construction period, but may also cause economic losses due to accidental injury; (2) When using guy ropes to fix the steel structure column, when adjusting the center line of the steel structure column, it is necessary not only to slowly move the steel structure column with jacks, but also to frequently change the anchoring position of the guy rope according to the adjusted state of the steel structure column. The process is cumbersome, difficult, time-consuming and labor-intensive; (3) After the steel structure column is installed, it is necessary to manually climb up and remove the guy rope, which is highly dangerous. Utility Model Content

[0004] The purpose of this utility model is to provide a bottom clamping device for steel structure columns to solve the problems mentioned above.

[0005] The technical solution adopted by this utility model is: a steel structure column bottom clamping device, which includes: a first abutting member, a second abutting member, and an adjuster. The first abutting member includes at least a first inclined surface and a first abutting surface, and the second abutting member includes at least a second inclined surface and a second abutting surface. The first abutting surface and the second abutting surface are arranged opposite to each other, and the first inclined surface and the second inclined surface are slidably connected. The adjuster connects the first abutting member and the second abutting member and can drive the first inclined surface and the second inclined surface to slide relative to each other to change the distance between the first abutting surface and the second abutting surface.

[0006] Furthermore, the adjuster includes an adjusting screw and a pressing block. The first and second abutting members are respectively provided with an internal thread groove and an elongated through groove for mounting the adjusting screw. The bottom end of the elongated through groove is connected to the internal thread groove. The pressing block is positioned on the circumferential outer side of the adjusting screw and abuts against the top surface of the second abutting member. The bottom end of the adjusting screw passes through the elongated through groove and connects to the internal thread groove.

[0007] Furthermore, the first inclined surface is provided with a first limiting wall and a second limiting wall. The first limiting wall and the second limiting arm extend along the inclined direction of the first inclined surface, and their opposite sides respectively abut against a set of opposite sides of the second abutting member.

[0008] Furthermore, the longitudinal direction of the elongated through groove is perpendicular to the second abutment surface, and its width dimension is smaller than the sum of the cross-sectional dimensions of the pressing block and the adjusting screw.

[0009] Furthermore, the regulator includes a transmission rod, the bottom end of which is provided with a plurality of positive L-shaped blocks distributed circumferentially thereon, and the top end of the adjusting screw is provided with a plurality of inverted L-shaped blocks distributed circumferentially thereon; the positive L-shaped blocks and the inverted L-shaped blocks have opposite rotation directions and are engaged with each other.

[0010] Furthermore, the transmission rod includes a bottom connecting rod and several standard rods, the L-shaped block is positioned at the bottom end of the bottom connecting rod, and the several standard rods are sequentially rotatably connected to the top end of the bottom connecting rod.

[0011] Furthermore, a concave block and a convex block are respectively provided at both ends of the standard rod. A first hinge block extending radially along the standard rod is provided on the convex block, and a second hinge block is provided at both ends of the concave block away from the standard rod. The second hinge block is parallel to the extending direction of the first hinge block and is used to hinge the first hinge block on another standard rod.

[0012] The beneficial effects of this utility model include at least the following: (1) It provides a device for abutting and fixing the bottom of a steel structure column inside the cup opening, which can improve the stability of the steel structure column, prevent it from tilting due to external disturbances before grouting, reduce secondary adjustments, or avoid structural damage caused by severe tilting; (2) The abutting force between the first abutting part and the steel structure column, and between the second abutting part and the cup opening can be changed by rotating the transmission rod. According to the adjustment direction of the center line and verticality of the steel structure column, the transmission rod in the abutting device on the outside can be adjusted in different directions, avoiding the time-consuming and labor-intensive problem of frequently changing the anchoring position of the guy rope in the prior art; (3) No climbing operation is required when installing or dismantling this device, which can reduce construction risks; (4) The length of the transmission rod in this device can be increased or decreased according to actual needs, and the operation is simple and highly applicable. Attached Figure Description

[0013] Figure 1 This is a first state diagram of an embodiment of the present utility model;

[0014] Figure 2 This is a second state diagram of an embodiment of the present utility model;

[0015] Figure 3 This is an unfolded view of the transmission rod in an embodiment of this utility model;

[0016] Figure 4 This is a folding diagram of the transmission rod in an embodiment of this utility model;

[0017] Figure 5 This is a bottom structural diagram of the bottom connecting rod in an embodiment of this utility model;

[0018] Figure 6 This is a structural diagram of the standard rod in an embodiment of this utility model;

[0019] Figure 7 This is a schematic diagram of the connection of the standard rod in an embodiment of this utility model;

[0020] Figure 8 This is a schematic diagram showing the connection between the first abutting member and the second abutting member in an embodiment of this utility model.

[0021] In the picture:

[0022] 1. First abutting element; 11. First inclined surface; 12. First abutting surface; 13. Internal thread groove;

[0023] 2. Second abutment component; 21. Second inclined surface; 22. Second abutment surface; 23. Elongated through groove;

[0024] 3. Adjuster; 31. Adjusting screw; 32. Pressing block; 33. Transmission rod; 331. Bottom connecting rod; 332. Standard rod; 333. Concave block; 334. Convex block; 335. First hinge block; 336. Second hinge block; 34. Positive L-shaped block; 35. Inverted L-shaped block;

[0025] 4. First limiting wall;

[0026] 5. Second limiting wall;

[0027] 6. Steel structure columns;

[0028] 7. Cup rim;

[0029] 8. Steel wedges. Detailed Implementation

[0030] The technical solutions of the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] In the description of the embodiments of this utility model, it should be understood that the terms "top," "bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that unless otherwise expressly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model through specific circumstances.

[0032] Reference Appendix Figure 1-8 This embodiment provides a steel structure column bottom clamping device, which includes: a first abutting member 1, a second abutting member 2, and an adjuster 3. The first abutting member 1 and the second abutting member 2 are both block-shaped. The first abutting member 1 includes at least a first inclined surface 11 as the top surface and a first abutting surface 12 as a side surface. The second abutting member 2 includes at least a second inclined surface 21 as the bottom surface and a second abutting surface 22 as a side surface. The first abutting surface 12 and the second abutting surface 22 are arranged opposite to each other and parallel to each other. The first inclined surface 11 and the second inclined surface 21 are slidably connected. The adjuster 3 connects the first abutting member 1 and the second abutting member 2 and is used to drive the first abutting member 1 and the second abutting member 2 to move relative to each other. The relative movement direction of the two satisfies the following: the distance between the first abutting surface 12 and the second abutting surface 22 can be changed by the relative sliding of the first inclined surface 11 and the second inclined surface 21.

[0033] When using this device for construction, it should be placed between the outer wall of the bottom end of the steel structure column 6 and the inner wall of the bottom end of the cup 7. It should be noted that multiple sets of this device (e.g., 3, 4, or more sets) should be evenly distributed along the circumference of the steel structure column 6. The first abutment surface 12 and the second abutment surface 22 should face the outer wall of the steel structure column 6 and the inner wall of the cup 7, respectively. The first abutment member 1 and the second abutment member 2 should be moved relative to each other by operating the adjuster 3, thereby increasing the size of the first abutment surface 12. The distance between the first abutment surface 12 and the second abutment surface 22 is adjusted until all the first abutment surfaces 12 of the device abut against the outer wall of the steel structure column 6 and the second abutment surface 22 abut against the inner wall of the cup opening 7. This achieves the limitation and fixation of the bottom end of the steel structure column 6, improving its stability before grouting. In addition, the relative position of the first abutment part 1 and the second abutment part 2 can be changed at any time according to the construction needs through the adjuster 3 to adjust the center line position and verticality of the steel structure column 6. It has a good limiting effect and is easy to operate.

[0034] Reference Appendix Figure 2-7The adjuster 3 includes an adjusting screw 31, a pressing block 32, and a transmission rod 33. The first abutting member 1 and the second abutting member 2 are respectively provided with an internal threaded groove 13 and an elongated through groove 23 for installing the adjusting screw 31. The bottom end of the elongated through groove 23 is connected to the internal threaded groove 13, and the longitudinal direction of the elongated through groove 23 is perpendicular to the second abutting surface 22. The pressing block 32 is arranged on the circumferential outer side of the adjusting screw 31 and abuts against the top surface of the second abutting member 2. The width dimension of the elongated through groove 23 is smaller than the sum of the cross-sectional dimensions of the pressing block 32 and the adjusting screw 31. The bottom end of the adjusting screw 31 passes through the elongated through groove 23 and connects to the internal threaded groove 13. The transmission rod 33 is detachably arranged on the top end of the adjusting screw 31.

[0035] In use, the adjusting screw 31 can be rotated by rotating the transmission rod 33. When the adjusting screw 31 rotates, its length extending into the internal thread groove 13 increases, and the height of the pressing block 32 fixed on its outer wall decreases accordingly, thereby squeezing the second abutment 2 and causing the second abutment 2 to slide downward along the first inclined surface 11. This increases the distance between the first abutment surface 12 and the second abutment surface 22, achieving a clamping effect between the two on the steel structure column 6 and the cup mouth 7 respectively. The adjusting screw 31 can be rotated in the opposite direction by rotating the transmission rod 33 in a certain clamping device, so that the first abutment surface 12 only contacts the steel structure column 6 without squeezing, and the second abutment surface 22 only contacts the steel structure column 6 without squeezing. Then, the distance between the first abutment surface 12 and the second abutment surface 22 in other parts of the clamping device in the cup mouth 7 is increased, causing the steel structure column 6 to squeeze and push the loosened first abutment 1, thereby adjusting the centerline position and verticality of the steel structure column 6.

[0036] To improve the performance of this device, this embodiment also provides a first limiting wall 4 and a second limiting wall 5 on the first inclined surface 11. The first limiting wall 4 and the second limiting wall 5 extend and are parallel to each other along the inclined direction of the first inclined surface 11, and their opposite sides respectively abut against a set of opposite sides of the second abutting member 2. By limiting the sides of the second abutting member 2 with the first limiting wall 4 and the second limiting wall 5, when the adjusting screw 31 rotates and moves in the elongated through groove 23, the second abutting member 2 can only move up and down along the first inclined surface 11 and cannot rotate or deviate, thus avoiding a change in the included angle between the first abutting surface 12 and the second abutting surface 22, which would affect the fixing effect on the steel structure column 6.

[0037] The transmission rod 33 allows construction personnel to easily adjust the device while standing outside the cup opening 7. However, the height of the cup opening 7 varies depending on the specific construction conditions, therefore the transmission rod 33 can be configured as an attachment. Figure 3The bottom connecting rod 331 and several standard rods 332 shown are connected in a detachable manner. The bottom of the bottom connecting rod 331 is rotatably connected to the top of the adjusting screw 31. The top of the bottom connecting rod 331 is rotatably connected to a standard rod 332. According to the height of the cup mouth 7, an appropriate number of standard rods 332 are rotatably connected above the standard rod 332. When the transfer device is used, the standard rods 332 can be rotated and folded. The number of standard rods 332 can be increased or decreased when applied to different working conditions.

[0038] The rotational connection between the bottom connecting rod 331 and the standard rod 332, and the adjacent standard rod 332, can be configured according to actual needs. Some feasible implementation schemes are only exemplified here, but are not intended to limit the scope of protection of this utility model.

[0039] Reference Appendix Figure 6-7 The standard rod 332 has a concave block 333 and a convex block 334 at its two ends, respectively. A first hinge block 335 extending radially along the standard rod 332 is mounted on the convex block 334. Second hinge blocks 336 are mounted on the two ends of the concave block 333 facing away from the standard rod 332. The second hinge blocks 336 are parallel to the extending direction of the first hinge blocks 335 and are used to hinge the first hinge blocks 335 on another standard rod 332. Depending on the installation direction of the standard rod 332, the concave block 333 and the first hinge block 335 can be mounted on the top of the bottom connecting rod 331, or the convex block 334 and the second hinge block 336 can be mounted on the top of the bottom connecting rod 331.

[0040] The longitudinal dimensions of the first hinge block 335 and the second hinge block 336 can be configured according to the radial dimension of the standard rod 332, so that adjacent standard rods 332 can be rotated and overlapped 180° without being unable to be folded due to mutual compression and obstruction at the ends of the standard rods 332.

[0041] The detachable connection between the bottom connecting rod 331 and the adjusting screw 31 can be configured according to actual needs. Some feasible implementation schemes are only exemplified here, but are not intended to limit the scope of protection of this utility model.

[0042] Reference Appendix Figure 5 The bottom end of the bottom connecting rod 331 is provided with several L-shaped blocks 34 that are distributed circumferentially. The vertical end of each L-shaped block 34 is connected to the bottom connecting rod 331, and the horizontal end extends in the same direction of rotation. The top end of the adjusting screw 31 is provided with several inverted L-shaped blocks 35 that are distributed circumferentially. The vertical end of each inverted L-shaped block 35 is connected to the adjusting screw 31, and the horizontal end extends in the same direction of rotation. The L-shaped blocks 34 and the inverted L-shaped blocks 35 have opposite directions of rotation and are engaged.

[0043] In use, insert the L-shaped block 34 into the gap between the adjacent inverted L-shaped blocks 35, and simultaneously insert the inverted L-shaped blocks 35 into the gap between the adjacent L-shaped blocks 34. Rotate the bottom connecting rod 331 in the tightening direction to lock the horizontal end of the L-shaped block 34 into the horizontal end of the inverted L-shaped block 35. The internal thread groove 13 is configured according to the tightening direction during the design and assembly of this device, so that when the bottom connecting rod 331 is rotated in the tightening direction, the height of the pressing block 32 can be lowered, achieving downward compression of the second abutment 2 and expansion of the distance between the first abutment surface 12 and the second abutment surface 22. Before grouting, simply rotate the bottom connecting rod 331 gently in the loosening direction (i.e., against the tightening direction) to separate the horizontal end of the L-shaped block 34 from the horizontal end of the inverted L-shaped block 35. Pull the transmission rod 33 upwards to retract it, and then pour the remaining structure with the grout.

[0044] In addition, to save on consumables, the first abutting member 1 and the second abutting member 2 in this device can be set as partially hollow structures, and the degree of hollowness does not affect their performance.

[0045] When using this device for construction, the following steps are included:

[0046] (1) The steel structure column 6 is placed in the cup mouth 7. Multiple sets of this tightening device are evenly arranged around the circumference of the steel structure column 6 on the bottom inner side of the cup mouth 7. The first abutting surface 12 of the first abutting member 1 in the tightening device faces the outer wall of the steel structure column 6, and the second abutting surface 22 of the second abutting member 2 faces the inner wall of the cup mouth 7.

[0047] (2) After adjusting the centerline position and verticality of the steel structure column 6, rotate the transmission rod 33 to lower the adjusting screw 31 and the pressing block 32. The second abutting piece 2 is squeezed and slides down the first inclined surface 11 until the first abutting surface 12 in all the tightening devices abuts against the outer wall of the steel structure column 6 and the second abutting surface 22 abuts against the inner wall of the cup mouth 7.

[0048] (3) Install steel wedges 8 on the top of the cup mouth 7 to complete the temporary fixation of the steel structure column 6 and wait for grouting.

[0049] Compared with the prior art, the beneficial effects of this utility model include at least the following: (1) It provides a device for abutting and fixing the bottom of the steel structure column 6 inside the cup mouth 7, which can improve the stability of the steel structure column 6, prevent it from tilting due to external disturbance before grouting, reduce secondary adjustment or avoid structural damage caused by severe tilting; (2) The abutting force between the first abutting part 1 and the steel structure column 6 and the second abutting part 2 and the cup mouth 7 can be changed by rotating the transmission rod 33. According to the adjustment direction of the center line and verticality of the steel structure column 6, the transmission rod 33 in the abutting device on its outer side can be adjusted in different directions, avoiding the time-consuming and labor-intensive problem of frequently changing the anchoring position of the guy rope in the prior art; (3) No climbing operation is required when installing and dismantling this device, which can reduce the construction risk; (4) The length of the transmission rod 33 in this device can be increased or decreased according to actual needs, and the operation is simple and the applicability is strong.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0051] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A bottom clamping device for a steel structure column, characterized in that, include: The device comprises a first abutment, a second abutment, and an adjuster. The first abutment includes at least a first inclined surface and a first abutting surface, and the second abutment includes at least a second inclined surface and a second abutting surface. The first abutting surface and the second abutting surface are disposed opposite to each other and are slidably connected. The adjuster connects the first abutment and the second abutment and can drive the first inclined surface and the second inclined surface to slide relative to each other to change the distance between the first abutting surface and the second abutting surface.

2. The steel structure column bottom tightening device according to claim 1, characterized in that, The adjuster includes an adjusting screw and a pressing block. The first and second abutting members are respectively provided with an internal thread groove and an elongated through groove for installing the adjusting screw. The bottom end of the elongated through groove is connected to the internal thread groove. The pressing block is located on the circumferential outer side of the adjusting screw and abuts against the top surface of the second abutting member. The bottom end of the adjusting screw passes through the elongated through groove and connects to the internal thread groove.

3. The steel structure column bottom tightening device according to claim 2, characterized in that, The first inclined surface is provided with a first limiting wall and a second limiting wall. The first limiting wall and the second limiting wall extend along the inclined direction of the first inclined surface, and their opposite sides respectively abut against a set of opposite sides of the second abutting member.

4. The steel structure column bottom tightening device according to claim 2, characterized in that, The elongated through groove is perpendicular to the second abutment surface in its longitudinal direction, and its width dimension is smaller than the sum of the cross-sectional dimensions of the pressing block and the adjusting screw.

5. The steel structure column bottom clamping device according to any one of claims 2-4, characterized in that, The regulator includes a transmission rod, the bottom end of which is provided with a plurality of positive L-shaped blocks distributed circumferentially, and the top end of the adjusting screw is provided with a plurality of inverted L-shaped blocks distributed circumferentially; the positive L-shaped blocks and the inverted L-shaped blocks have opposite rotation directions and are engaged.

6. The steel structure column bottom tightening device according to claim 5, characterized in that, The transmission rod includes a bottom connecting rod and several standard rods. The L-shaped block is located at the bottom end of the bottom connecting rod, and the several standard rods are sequentially rotatably connected to the top end of the bottom connecting rod.

7. The steel structure column bottom tightening device according to claim 6, characterized in that, The standard rod has a concave block and a convex block at both ends, respectively. A first hinge block extending radially along the standard rod is provided on the convex block, and a second hinge block is provided on both ends of the concave block away from the standard rod. The second hinge block is parallel to the extending direction of the first hinge block and is used to hinge the first hinge block on another standard rod.

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