Viscous damper for seismic reinforcement of existing building

Abstract

The utility model discloses a viscous damper for seismic reinforcement of an existing building, which relates to the technical field of constructional engineering and comprises an upper support frame, a lower support frame, a fixing component and a connecting component. The fixing assembly comprises a fixing seat, a clamping plate and a clamping piece, a clamping groove matched with the clamping piece is formed in the inner wall of the fixing seat, and a springback piece is arranged on the clamping piece; the connecting assembly comprises a connecting sleeve fixedly connected with the clamping plate, a clamping piece movably arranged in the connecting sleeve and an adjusting piece arranged on the connecting sleeve, the adjusting piece is movably connected with the clamping piece, and the two ends of the viscous damper penetrate into the connecting sleeve and are located in the clamping piece; the adjusting piece drives the clamping piece to move under the action of external force, so that the viscous damper is clamped by the clamping piece; and the clamping piece is arranged to be clamped with the clamping groove, so that the damper main body can be conveniently detached for overhauling, the operation is convenient, the damper main body can be conveniently overhauled without carrying a special tool, the convenience of overhauling the damper main body is improved, and the labor intensity of overhauling personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a viscous damper for seismic reinforcement of existing buildings. Background Art

[0002] When an earthquake occurs, ground vibrations cause the structure to vibrate. Ground seismic energy is input into the structure. The structure receives a large amount of seismic energy, and energy conversion or consumption is necessary to finally stop the vibration response. Traditional building seismic reinforcement technology mainly adopts the form of "hard-on-hard" to resist or consume seismic energy. This process is not only economical but also does not fundamentally solve the problem of structural seismic resistance. The new building shock absorption reinforcement technology is different from the traditional reinforcement technology of "hard-on-hard" seismic resistance. It consumes seismic energy by using softness to overcome rigidity: its principle is to provide additional damping ratio and stiffness through the relative deformation and relative velocity of the energy dissipator, and guide the energy input into the structure to a specially set mechanism or component for absorption and dissipation to protect the safety of the main structure. Energy dissipation and shock absorption technology can reduce the seismic response of the structure by 20% to 40%, thereby increasing the seismic resistance of the structure. It is a new technology and method to reduce seismic response and earthquake damage.

[0003] Viscous damper shock absorption principle (VFD): It is made based on the principle of fluid movement, especially when the fluid passes through the throttling hole, it will produce throttling resistance. It is an energy dissipator related to the piston movement speed. When an earthquake occurs, the reciprocating motion of the piston in the damping medium is converted into heat dissipation, so that the piston movement speed gradually decreases, achieving the purpose of damping energy dissipation, maximizing the absorption and consumption of the impact energy of the earthquake on the building structure, and greatly alleviating the impact and damage caused by the earthquake on the building structure.

[0004] However, when the current viscous damper is fixedly installed on the upper support frame and the lower support frame, bolts are generally used to pass through the viscous damper and the upper support frame and the lower support frame, and then nuts and bolts are used to perform threaded connection to achieve the viscous damper being fixedly installed on the upper support frame and the lower support frame. During regular inspections of the viscous damper, special tools are required to unscrew the bolts before the viscous damper can be disassembled for inspection. The special tools are large in size and inconvenient to carry, which makes it troublesome to perform regular inspections of the viscous damper every time. Utility Model Content

[0005] The main purpose of the utility model is to provide a viscous damper for seismic reinforcement of existing buildings, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a viscous damper for seismic reinforcement of existing buildings, comprising:

[0007] The fixing assembly comprises a fixing seat respectively arranged on the upper supporting frame and the lower supporting frame, a clamping plate arranged in the fixing seat, and a clamping piece movably arranged on the clamping plate; a clamping groove matched with the clamping piece is arranged on the inner wall of the fixing seat; a rebound piece is arranged on the clamping piece; the clamping piece moves into the clamping plate under the action of an external force, so that the clamping piece is separated from the clamping groove;

[0008] The connecting component comprises a connecting sleeve fixedly connected to the clamping plate, a clamping piece movably arranged in the connecting sleeve, and an adjusting piece arranged on the connecting sleeve; the adjusting piece is movably connected to the clamping piece; the two ends of the viscous damper are inserted into the connecting sleeve and are located in the clamping piece; the adjusting piece drives the clamping piece to move under the action of an external force, thereby causing the clamping piece to clamp the viscous damper.

[0009] As a further improvement of the utility model, a working cavity is provided in the clamping plate; a first slide groove and a second slide groove communicating with the working cavity are respectively provided on the clamping plate; the first slide groove and the second slide groove are arranged perpendicular to each other.

[0010] As a further improvement of the present invention, the clamping part includes a push rod slidably arranged in the first slide groove, a connecting rod arranged at the end of the push rod and located in the working cavity, a rotating rod respectively hinged to the two ends of the connecting rod, and a clamping block hinged to the rotating rod; the clamping blocks are respectively located in the second slide groove; the rebound piece is sleeved on the clamping block, and the two ends of the rebound piece are respectively abutted against the end face of the clamping block and the end face of the second slide groove.

[0011] As a further improvement of the utility model, the clamping member includes clamping plates symmetrically arranged in the connecting sleeve, and a clamping space is formed between the two groups of clamping plates; the adjusting member includes an adjusting screw; the adjusting screw is connected to the two groups of clamping plates through positive thread and negative thread respectively.

[0012] As a further improvement of the utility model, a control box is provided on the connecting sleeve; a crank is rotatably provided on the control box, and tooth blocks are provided at intervals inside the control box; a gear located inside the control box and meshing with the tooth block is provided on the crank; a return spring is provided on the outer wall of the crank between the gear and the control box; one end of the adjusting screw penetrates into the control box and is provided with a slot on the end head; a rectangular rod is provided on the gear and is movably engaged with the slot.

[0013] The beneficial effects of the utility model are embodied in:

[0014] By setting the clamping piece and the clamping slot, the damper body can be easily disassembled for maintenance, which is easy to operate and can be conveniently repaired without carrying special tools. The convenience of repairing the damper body is improved and the labor intensity of maintenance personnel is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic diagram of the installation structure of a viscous damper for seismic reinforcement of an existing building according to the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the clamping assembly and the viscous damper of the viscous damper for seismic reinforcement of an existing building according to the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a clamping member of a viscous damper for seismic reinforcement of an existing building according to the utility model;

[0018] Figure 4 It is a schematic diagram of a clamping member of a viscous damper for seismic reinforcement of an existing building according to the utility model;

[0019] Description of reference numerals:

[0020] 1. Upper support frame; 2. Lower support frame; 3. Fixed seat; 4. Snap-on plate; 5. Snap-on piece; 501. Push rod; 502. Connecting rod; 503. Rotating rod; 504. Block; 505. Support rod; 506. Retaining ring; 6. Snap-on groove; 7. Resilient piece; 8. Connecting sleeve; 9. Clamping piece; 901. Clamping plate; 902. Clamping space; 903. Clamping end; 10. Adjusting piece; 1001. Adjusting screw; 11. Viscous damper; 12. Working chamber; 13. First slide groove; 14. Second slide groove; 15. Control box; 16. Crank handle; 17. Tooth block; 18. Gear; 19. Reset spring; 20. Slot; 21. Rectangular rod. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] In one embodiment, see Figure 1 The utility model discloses a viscous damper for seismic reinforcement of existing buildings, comprising an upper support frame 1, a lower support frame 2, a fixing component, and a connecting component.

[0023] Among them, the fixing assembly includes a fixing seat 3 respectively arranged on the upper support frame 1 and the lower support frame 2, a clamping plate 4 arranged in the fixing seat 3, and a clamping part 5 movably arranged on the clamping plate 4. A clamping groove 6 matching the clamping part 5 is provided on the inner wall of the fixing seat 3, and a rebound part 7 is provided on the clamping part 5. The clamping part 5 moves into the clamping plate 4 under the action of external force to separate the clamping part 5 from the clamping groove 6; the connecting assembly includes a connecting sleeve 8 fixedly connected to the clamping plate 4, a clamping part 9 movably arranged in the connecting sleeve 8, and an adjusting part 10 arranged on the connecting sleeve 8. The adjusting part 10 is movably connected to the clamping part 9, and both ends of the viscous damper 11 are inserted into the connecting sleeve 8 and are located in the clamping part 9; the adjusting part 10 drives the clamping part 9 to move under the action of external force, so that the clamping part 9 clamps the viscous damper 11.

[0024] Preferably, the fixing seat 3 is a hollow rectangular body with openings at both ends, and two groups of fixing seats 3 are provided, and the two groups of fixing seats 3 are fixedly mounted on the upper support frame 1 and the lower support frame 2 respectively.

[0025] Preferably, the engaging grooves 6 are symmetrically arranged on the inner wall of the fixing seat 3 .

[0026] For further information, see Figure 4 A working cavity 12 is provided in the clamping plate 4, and a first slide groove 13 and a second slide groove 14 communicating with the working cavity 12 are respectively provided on the clamping plate 4, and the first slide groove 13 and the second slide groove 14 are arranged perpendicular to each other.

[0027] Preferably, the first slide groove 13 passes through one end of the clamping plate 4 along the horizontal longitudinal direction and is communicated with the working chamber 12 .

[0028] Preferably, the first sliding groove 13 runs through the left and right ends of the clamping plate 4 in a horizontal direction.

[0029] For further information, see Figure 4 The clamping member 5 includes a push rod 501 slidably arranged in the first slide groove 13, a connecting rod 502 arranged at the end of the push rod 501 and located in the working chamber 12, a rotating rod 503 hinged to the two ends of the connecting rod 502, and a clamping block 504 hinged to the rotating rod 503, and the clamping block 504 is respectively located in the second slide groove 14; the rebound member 7 is sleeved on the clamping block 504, and the two ends of the rebound member 7 are respectively abutted against the end surface of the clamping block 504 and the end surface of the second slide groove 14.

[0030] Preferably, a support rod 505 is also provided on the block 504, a retaining ring 506 is provided on the inner wall of the second slide groove 14, and one end of the support rod 505 away from the block 504 is hinged to the rotating rod 503; the rebound member 7 adopts a rebound spring, which is sleeved on the support rod 505 and located in the second slide groove 14, and the two ends of the rebound spring are respectively abutted against the retaining ring 506 and the card.

[0031] In the above arrangement, after the clamping plate 4 is inserted into the fixing seat 3, the clamping block 504 is squeezed by the inner wall of the fixing seat 3, and the rebound spring is compressed to cause the clamping block 504 to retract into the second sliding groove 14. When the clamping block 504 moves to the clamping groove 6, the rebound spring recovers and pushes the clamping block to pop out into the clamping groove 6, thereby connecting the clamping block to the fixing seat 3, and then connecting the connecting sleeve 8 to the fixing seat 3; when separating the connecting sleeve 8 from the fixing seat 3, by pushing the push rod 501 into the working chamber 12, the push rod 501 drives the connecting rod 502 to move downward, and the rotating rod 503 rotates accordingly to pull the support rod 505 and the clamping block 504 to move into the second sliding groove 14. At this time, the clamping block 504 is separated from the clamping groove 6, and the push rod 501 is continued to be pushed to drive the clamping plate 4 to disengage from the fixing groove, thereby separating the connecting sleeve 8 from the fixing seat 3.

[0032] For further information, see Figure 2 , 3 The clamping member 9 includes clamping plates 901 symmetrically arranged in the connecting sleeve 8, and a clamping space 902 is formed between the two groups of clamping plates 901; the adjusting member 10 includes an adjusting screw 1001, and the adjusting screw 1001 is connected to the two groups of clamping plates 901 through a positive thread and a negative thread respectively.

[0033] Preferably, a screw hole is provided on the clamping plate 901 , and an arc-shaped clamping end 903 is provided at the end of the clamping plate 901 away from the adjusting screw 1001 , and a rubber pad is provided on the clamping end 903 .

[0034] Preferably, both ends of the adjusting screw 1001 are rotatably connected to the connecting sleeve 8 respectively.

[0035] For further information, see Figure 2 , 3 A control box 15 is provided on the connecting sleeve 8, and a crank 16 is rotatably provided on the control box 15. A tooth block 17 is provided inside the control box 15. The crank 16 is provided with a gear 18 located inside the control box 15 and meshing with the tooth block 17. A return spring 19 is provided on the outer wall of the crank 16 between the gear 18 and the control box 15; one end of the adjusting screw 1001 penetrates into the control box 15 and is provided with a slot 20 on the end head, and a rectangular rod 21 movably engaged with the slot 20 is provided on the gear 18.

[0036] Preferably, the control box 15 is a circular structure with a hollow inner wall. A rotating hole is provided on the control box 15, and one end of the crank 16 is rotated through the control box 15 and is located inside the control box 15.

[0037] In the above arrangement, when it is necessary to rotate the adjusting screw 1001, it is only necessary to pull the crank handle 16 backward to drive the gear 18 to separate from the tooth block 17. At this time, turning the crank handle 16 again can drive the gear 18 to rotate, and the gear 18 drives the adjusting screw 1001 to rotate through the rectangular rod 21, so that the clamping plate 901 moves toward each other to clamp the outer wall of the damper body; then release the crank handle 16, and the reset spring 19 pushes the gear 18 to reset and re-engage with the tooth block 17. At this time, the gear 18 cannot rotate, that is, the adjusting screw 1001 cannot rotate, thereby preventing the adjusting screw 1001 from rotating due to vibration or other reasons, causing the clamping plate 901 to loosen, thereby avoiding the situation where the clamping plate 901 loosens the damper.

[0038] In this embodiment, after the two ends of the viscous damper 11 are respectively clamped in the connecting sleeve 8 by the clamping plate 901, the clamping plate 4 is pushed into the fixing seat 3, and the clamping block 504 is clamped with the clamping groove 6, so that the clamping plate 4 is clamped with the fixing seat 3, and then the connecting sleeve 8 is connected to the fixing seat 3, so that the viscous damper 11 is connected to the upper support frame 1 and the lower support frame 2 respectively. The position of the viscous damper 11 can be adjusted by loosening the clamping plate 901, and after the adjustment is completed, it is clamped using the clamping plate 901.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A viscous damper for seismic reinforcement of existing buildings, comprising a structure characterized in that: include: The fixing assembly comprises a fixing seat (3) respectively arranged on an upper supporting frame (1) and a lower supporting frame (2), a clamping plate (4) arranged in the fixing seat (3), and a clamping member (5) movably arranged on the clamping plate (4); a clamping groove (6) matched with the clamping member (5) is arranged on the inner wall of the fixing seat (3); a rebound member (7) is arranged on the clamping member (5); the clamping member (5) moves into the clamping plate (4) under the action of an external force, so that the clamping member (5) is separated from the clamping groove (6); The connection assembly comprises a connection sleeve (8) fixedly connected to a clamping plate (4), a clamping member (9) movably arranged in the connection sleeve (8), and an adjusting member (10) arranged on the connection sleeve (8); the adjusting member (10) is movably connected to the clamping member (9); both ends of the viscous damper (11) are inserted into the connection sleeve (8) and are located in the clamping member (9); the adjusting member (10) drives the clamping member (9) to move under the action of an external force, thereby causing the clamping member (9) to clamp the viscous damper (11).

2. The viscous damper for seismic reinforcement of existing buildings according to claim 1, characterized in that: A working cavity (12) is provided in the clamping plate (4); a first slide groove (13) and a second slide groove (14) which are communicated with the working cavity (12) are respectively provided on the clamping plate (4); the first slide groove (13) and the second slide groove (14) are arranged perpendicular to each other.

3. The viscous damper for seismic reinforcement of existing buildings according to claim 2, characterized in that: The clamping member (5) comprises a push rod (501) slidably arranged in the first slide groove (13), a connecting rod (502) arranged at the end of the push rod (501) and located in the working chamber (12), a rotating rod (503) respectively hinged to the two ends of the connecting rod (502), and a clamping block (504) hinged to the rotating rod (503); the clamping blocks (504) are respectively located in the second slide groove (14); the resilient member (7) is sleeved on the clamping block (504), and the two ends of the resilient member (7) are respectively abutted against the end surface of the clamping block (504) and the end surface of the second slide groove (14).

4. The viscous damper for seismic reinforcement of existing buildings according to claim 3 is characterized in that: The clamping member (9) comprises clamping plates (901) symmetrically arranged in the connecting sleeve (8), and a clamping space (902) is formed between two groups of clamping plates (901); the adjusting member (10) comprises an adjusting screw (1001); the adjusting screw (1001) is connected to the two groups of clamping plates (901) respectively by means of a positive thread and a negative thread.

5. The viscous damper for seismic reinforcement of existing buildings according to claim 4, characterized in that: The connecting sleeve (8) is provided with a control box (15); a crank handle (16) is rotatably provided on the control box (15), and a tooth block (17) is provided inside the control box (15); a gear (18) is provided on the crank handle (16) and is located inside the control box (15) and meshed with the tooth block (17); a return spring (19) is provided on the outer wall of the crank handle (16) between the gear (18) and the control box (15); one end of the adjusting screw (1001) penetrates into the control box (15) and is provided with a slot (20) on the end head; and a rectangular rod (21) is provided on the gear (18) and is movably engaged with the slot (20).

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