High formwork support damping device

Abstract

The invention belongs to the technical field of constructional engineering, and particularly relates to a high formwork support damping device which comprises a U-shaped support, a vertical rod, a compression nut, a gasket, a variable cross-section rubber pad and a damping connecting pipe, the U-shaped support comprises a supporting plate and a lead screw, and the supporting plate is fixed to the lead screw; the vibration reduction connecting pipe is composed of a threaded connecting pipe body and a socket vibration reduction pipe body, a small-section threaded section is arranged at the upper end in the threaded connecting pipe body and used for penetrating into the U-shaped supporting lead screw part to be in threaded connection, and external threads are formed in the outer wall of the threaded connecting pipe body. According to the device, the function of adjusting the elevation of the U-shaped support is reserved, meanwhile, vibration reduction and energy dissipation of the horizontal dynamic load on the upper portion are achieved through the vibration reduction connecting pipe on the lower portion of the device, and the collapse risk caused by the fact that the horizontal dynamic load transmitted down through a formwork is directly transmitted to a formwork support vertical rod in the concrete pouring period is avoided; and the safety guarantee of the high and large formwork support in the construction process is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of construction engineering, and in particular relates to a high-support formwork vibration reduction device. Background Art

[0002] The construction of cast-in-place concrete in the field of construction engineering usually adopts a high-support formwork system for support. As the main temporary facility in construction, the high-support frame plays a vital role in the safety of the entire construction process. In the prior art, insufficient consideration has been given to the vibration reduction measures of high-support formwork, resulting in frequent accidents of high-support formwork collapse in recent years. The collapse of high-support formwork is mainly concentrated in the concrete pouring stage. The main reason is that the frame bears the effect of the dynamic load generated by the concrete pouring. The dynamic load greatly weakens the safety and reliability of the formwork frame. The dynamic load comes from the pouring of concrete, vibrating concrete, the placement of large-scale distribution equipment, and the reciprocating motion of the concrete pump pipe when pumping concrete. Among them, the reciprocating motion of the concrete pump pipe when pumping concrete is the main reason for the collapse of tall formwork.

[0003] Existing technologies, such as the disc-type double-top support structure disclosed in CN216196650U, are currently common forms of formwork. However, this formwork structure fails to consider the vibration resistance of the entire formwork system, resulting in the entire structural system failing to meet the safety and stability requirements of construction. In particular, when the concrete pump pipe is conveying concrete, a horizontal step load is generated, which is transmitted to the frame through friction between components. Simultaneously, as the concrete is poured, the mass of the top of the frame gradually increases, and this is in the form of an eccentric load, causing the frame's natural frequency to change. When the frequency of the external excitation load approaches the frame's natural frequency, a resonance effect occurs, significantly increasing the frame's amplitude and making it highly susceptible to damage and collapse.

[0004] Existing technologies such as CN216893509U disclose a socket-type keyway steel pipe formwork system, which includes vertical poles, horizontal poles, screw rods and nuts. Keyway plugs and keyway sockets are set at the connection nodes of the vertical poles and horizontal poles. The keyway sockets have four conical protrusions evenly distributed around the circumference. The conical protrusions are narrow at the top and wide at the bottom. The keyway sockets have a threaded hole in the center, which is mated with the screw rod thread. Nuts are also set at the upper and lower ends of the screw rod. The nuts are tightened downward to fix the keyway socket and the screw rod together. The vertical poles are sleeve structures. The upper and lower ends of the screw rod are inserted into the vertical poles to connect the upper and lower vertical poles. The rear end of the keyway plug has a rod body. The horizontal poles are sleeve structures. The rod body is inserted into the end of the horizontal pole to connect the keyway plug and the horizontal pole together. The conical protrusions of the keyway sockets are embedded in the grooves of the keyway plugs to connect the vertical poles and the horizontal poles to form a formwork system. The above-mentioned formwork is also subject to the continuous transmission of dynamic loads during concrete pouring construction, which will greatly undermine the safety and stability of the formwork system.

[0005] In summary, in view of the safety hazard of system collapse caused by insufficient consideration of vibration reduction of the formwork frame system in the existing technology, it is crucial to consider reducing the horizontal dynamic effect generated by the formwork frame during the concrete pouring stage. It is proposed to add special vibration reduction devices to the commonly used adjustable top supports and vertical poles to achieve vibration reduction and energy dissipation of the horizontal dynamic load transmitted from the upper part, reduce the dynamic response of the tall formwork frame under the horizontal dynamic load during the concrete pouring process, and improve the safety of the frame. Summary of the Invention

[0006] In view of the above-mentioned deficiencies in the prior art, the present invention provides a high-support formwork vibration reduction device to solve the technical problem that the prior art formwork system is prone to collapse.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A high-support formwork vibration reduction device, comprising a U-shaped support and a vertical rod, a compression nut, a gasket, a variable-section rubber pad and a vibration-reducing connecting pipe, wherein the U-shaped support comprises a supporting plate and a screw rod, and the supporting plate is fixed to the screw rod;

[0009] The vibration damping connecting pipe is composed of a threaded connecting pipe and a socket vibration damping pipe. The upper end of the threaded connecting pipe is provided with a small-section threaded section for penetrating the screw rod part of the U-shaped support 1 for threaded connection, and the outer wall thereof is provided with an external thread;

[0010] The top end of the threaded connection pipe is a bevel end, and the variable-section rubber pad is embedded in the bevel end. A gasket is also provided above the variable-section rubber pad, and a compression nut is provided above the gasket. The compression nut is matched with the screw thread, and its lower surface uniformly compresses the variable-section rubber pad through the contact gasket, thereby tightening the upper part of the screw;

[0011] The socket-and-spigot vibration damping pipe includes a socket-and-spigot sleeve, a ball head support, a spring limiting rod, an elastic vibration damping basket, an upper cover, a lower base plate, and a vertical closing ring. The upper end of the socket-and-spigot sleeve is integrated with the threaded connecting pipe, and the lower end of the socket-and-spigot sleeve is inserted into the vertical rod. A plurality of large holes are provided at intervals on the bottom of the socket-and-spigot sleeve to expose a portion of the elastic vibration damping basket.

[0012] The ball head support is hemispherical and fixed to the top of the socket sleeve; the vertical closed ring is a tubular structure with an inner diameter that is the same as the outer diameter of the upper cover and the lower base plate. The inner wall of the top of the vertical closed ring is provided with a thread, and the bottom is provided with a burr inwardly; the upper cover is located above the large hole of the socket sleeve and is welded to the socket sleeve, and the outer wall of the upper cover is provided with a thread for screwing with the inner wall thread of the top of the vertical closed ring; the lower base plate is located below the large hole of the socket sleeve and is welded to the socket sleeve, and the burr at the bottom of the vertical closed ring is in contact with the lower base plate;

[0013] The upper cover and the lower base plate are both provided with a plurality of through holes at corresponding intervals along the circumferential direction; the elastic vibration-damping flower basket is spherical; the number of the spring limiting rods and the number of the elastic vibration-damping flower baskets are the same as the number of the plurality of through holes; the elastic vibration-damping flower basket is provided with an upper fixing ring and a lower fixing ring above and below; the spring limiting rod passes through the upper cover, the upper fixing ring, the lower fixing ring, and the lower base plate of the elastic vibration-damping flower basket in sequence.

[0014] Furthermore, the upper half of the variable-section rubber pad is a ring with a constant cross-section, and the lower half is a continuously variable-section ring. The continuously variable-section ring is inserted into the groove end for fastening the screw rod.

[0015] Furthermore, the screw rod is provided with a long slot in the vertically adjustable range, and the inner ring of the gasket is radially provided with an anti-rotation plug, which is inserted into the long slot of the screw rod to prevent the rubber pad from rotating and causing additional deformation when the upper tightening nut is screwed.

[0016] Furthermore, it also includes a tightening device, which is sleeved on the threaded connecting pipe part of the vibration-damping connecting pipe. A plurality of vertical grooves are spaced apart on the outer wall of the threaded connecting pipe, and the vertical grooves are set through.

[0017] Furthermore, the tightening device includes a threaded ring, a latch and a hexagonal nut. The inner wall of the threaded ring is provided with a thread connected to the threaded connecting pipe. A plurality of rectangular holes are provided at intervals along the circumference thereof for passing the latch, and a short steel pipe is radially arranged with the center of the rectangular hole as the center of the circle; the outer wall of the short steel pipe is provided with a thread for connecting the hexagonal nut.

[0018] Furthermore, the latch includes a cylindrical section, a pin and a rubber contact arranged at the outer end; the cylindrical section has a concave spherical surface arranged at its outer end, and the other end is fixed to the pin; the pin is a rectangular cross-section section, passing through the rectangular hole on the side of the threaded ring and the vertical groove on the outer wall of the threaded connecting tube, and its end is fixed to the rubber contact; the contact surface between the rubber contact and the screw rod is arc-shaped, the inner wall of the hexagonal nut is provided with a thread connected to the short steel pipe, and the inner bottom is provided with a rotating seat and a pre-installed ball; the ball arranged at the bottom of the hexagonal nut fits with the concave spherical surface of the cylindrical section of the latch.

[0019] Furthermore, the elastic vibration-damping flower basket also includes arc-shaped steel bars and inner lining rings. The arc-shaped steel bars are arranged as spherical meridians to form a spherical frame. The upper fixing ring and the lower fixing ring are divided into vertical sections and arc-shaped sections. The outer wall of the vertical section fixes the end of the arc-shaped steel bar. The curvature of the surface of the arc-shaped section matches the arc-shaped steel bar and is used to weld and fix the arc-shaped steel bar. The inner lining ring is an inward multi-arch structure, each arch corresponds to the gap between two adjacent arc-shaped steel bars, and the arch ends are connected by a sealing ring. Each arch end is provided with a slot to be clamped on the arc-shaped steel bar.

[0020] Furthermore, the spring limiting rod includes a fixed rod, a spring, an upper sliding gasket, a lower sliding gasket and a spring pressure ring. The upper part of the fixed rod is provided with a thread that matches the inner wall thread of the spring pressure ring, and the lower part is provided with a thread that matches and connects with the nut; the upper sliding gasket and the lower sliding gasket are respectively arranged on the upper surface of the upper cover and the lower surface of the lower base plate, and the spring is placed between the spring pressure ring and the upper sliding gasket and fixed to the two.

[0021] Furthermore, the socket-and-spigot vibration damping tube also includes a radial stiffening plate and a rotational limit plate. The radial stiffening plate is located between the large holes of the socket-and-spigot sleeve, arranged vertically, and connects the outer wall of the socket-and-spigot sleeve and the inner wall of the vertical closed ring; the rotational limit plate is an arc-shaped plate structure, with wedge-shaped protrusions provided on the upper and lower parts, which are clamped on the upper cover and the lower bottom plate.

[0022] Furthermore, a handle is provided on the outer wall of the vibration-damping connecting pipe at a solid position, which is used to rotate the vibration-damping connecting pipe to adjust the overall length of the horizontal vibration-damping device to achieve support plate elevation adjustment.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The elastic vibration damping basket in the socket vibration damping pipe at the lower part of the vibration damping connecting pipe in this device effectively reduces the transmission of dynamic load to the vertical rod caused by the reciprocating tilt of the device as a whole. Specifically, when the device falls, the socket vibration damping pipe is easy to rotate under the support of the ball head support and the vertical rod, and the vibration damping connecting pipe as a whole rotates accordingly, which will cause the bottom of the socket vibration damping pipe wall on the tilting side to generate horizontal extrusion impact and vertical impact load on at least one elastic vibration damping basket, causing the elastic vibration damping basket to deform, and the ball is squeezed and covered by the upper cover. The circular groove guides the deformation into an ellipsoid. The large holes in the upper cover and lower base provide space for the displacement of the spring limit rod during deformation, thereby reducing the dynamic effect transmitted to the vertical pole. The elastic vibration-damping flower basket, made of spring steel, can return to its original shape after significant deformation. The multi-arch lining ring design further improves the overall load-bearing capacity of the elastic vibration-damping flower basket. When the elastic vibration-damping flower basket deforms, its upper and lower fixing rings may experience horizontal displacement. The spring limit rod limits it and also undergoes elastic bending deformation, providing a certain vibration reduction effect.

[0025] 2. The threaded connecting pipe on the upper part of the vibration-damping connecting pipe is connected to the device through a U-shaped support screw thread to achieve the adjustment of the top elevation. At the same time, compared with the traditional adjustable top support directly inserted into the vertical pole, this device avoids the collision vibration at the position of the screw, so measures need to be taken to relatively fix the screw and protect the thread.

[0026] 3. This device retains the function of adjusting the elevation of the U-shaped support. At the same time, it realizes the vibration reduction and energy dissipation of the upper horizontal dynamic load through the vibration-damping connecting pipe at the bottom of the device, avoiding the risk of collapse caused by the horizontal dynamic load transmitted through the formwork during concrete pouring directly to the formwork frame uprights, thereby improving the safety of tall formwork frames during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a high-support formwork vibration reduction device of the present invention;

[0028] Figure 2 This is a disassembled diagram of a vibration-damping connecting pipe of a high-support formwork vibration-damping device of the present invention;

[0029] Figure 3 This is a schematic diagram of a U-shaped support, a gasket, a compression nut, and a variable-section rubber pad of a high-support formwork vibration reduction device of the present invention;

[0030] Figure 4 This is a schematic diagram of a vibration-damping connecting pipe as a whole, a threaded connecting pipe, and a ball head support of a high-support formwork vibration-damping device of the present invention;

[0031] Figure 5 This is a schematic diagram of a socket-and-spigot vibration damping pipe as a whole, a socket-and-spigot sleeve, an upper cover and a lower base plate of a high-support formwork vibration damping device of the present invention;

[0032] Figure 6 Schematic diagram of an elastic vibration-damping basket and a spring limiting rod of a high-support formwork vibration-damping device of the present invention;

[0033] Figure 7 This is a schematic diagram of a vertical closed ring, radial stiffening plate, and rotary limit plate of a high-support formwork vibration reduction device of the present invention;

[0034] Figure 8 This is a schematic diagram of a tightening device for a high-support formwork vibration reduction device of the present invention. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the present invention, the technical solutions of the present invention are further described below with reference to the accompanying drawings and embodiments.

[0036] Example 1

[0037] like Figure 1-3 As shown, a high-support formwork vibration reduction device includes a U-shaped support 1, a gasket 3, a tightening nut 2, a variable-section rubber pad 4, a vibration reduction connecting pipe 6 and a tightening device 5.

[0038] The vibration-damping connecting pipe 6 consists of a threaded connecting pipe 6-1 and a socket-and-spigot vibration-damping pipe 6-2. The upper portion of the threaded connecting pipe 6-1 is threadedly connected to the U-shaped support 1. The vertical pole is inserted into the socket-and-spigot vibration-damping pipe 6-2, and an elastic vibration-damping basket 6-2-5 is provided on the inner wall. The tightening device 5 is sleeved on the threaded connecting pipe 6-1 portion of the vibration-damping connecting pipe 6 and can be moved up and down by a knob to tighten and fix the adjustable jacking screw 1-2. The U-shaped support 1 includes a support plate 1-1 and a screw 1-2. The support plate 1-1 is fixed to the screw 1-2. The screw 1-2 has a long slot in the vertical adjustable range.

[0039] See also Figure 4 , the upper end of the threaded connecting tube 6-1 is provided with a small-section threaded section for inserting the screw 1-2 part of the U-shaped support 1; the entire outer wall is provided with threads for threaded connection to the tightening device 5, and vertical grooves are also provided on the outer wall at 90° intervals. The vertical grooves have no reserved wall thickness and are set through, so that the tightening device 5 can move up and down through the threads; the top of the threaded connecting tube 6-1 is a bevel end, and a variable-section rubber pad 4 is embedded in the bevel end; the upper half of the variable-section rubber pad 4 is a uniform-section ring, and the lower half is a continuously variable-section A face ring and a continuously variable cross-section ring are inserted into the groove end to tighten the screw rod 1-2; a gasket 3 is also provided above the variable cross-section rubber pad 4, and a clamping nut 2 is provided above the gasket 3; the clamping nut 2 is threadedly connected to the screw rod 1-2, and its lower surface uniformly compresses the variable cross-section rubber pad 4 through the contact gasket 3, thereby tightening the upper part of the screw rod 1-2; an anti-rotation plug is radially provided on the inner ring of the gasket 3, and the anti-rotation plug is inserted into the long groove of the screw rod 1-2 to prevent the rubber pad from rotating and causing additional deformation when the upper clamping nut 2 is screwed.

[0040] See also Figure 5-6 ,in Figure 5 The third column shows the front and back views of the upper cover 6-2-3 and lower base plate 6-2-4, respectively. The spigot-type vibration damping pipe 6-2 comprises a spigot-type sleeve 6-2-2, a ball support 6-2-1, a spring stopper 6-2-6, an elastic vibration damping basket 6-2-5, an upper cover 6-2-3, a lower base plate 6-2-4, a vertical sealing ring 6-2-7, a radial stiffening plate 6-2-8, and a rotational stopper plate 6-2-9. The spigot-type sleeve 6-2-2 is integral with the threaded connecting pipe 6-1 and is inserted into the vertical pole. The bottom of the spigot-type sleeve is provided with a plurality of large holes 6-2-2-1 at intervals, preferably 2-6, and most preferably with the large holes 6-2-2-1 arranged at 90 degrees to expose the elastic vibration damping basket 6-2-5.

[0041] The ball support 6-2-1 is fixed to the inner top of the socket sleeve 6-2-2. It is hemispherical with the spherical surface facing downward. Eight sliding ribs extend upward from the bottom of the sphere. The diameter of the sphere is larger than the inner diameter of the vertical pole, so that the ball support 6-2-1 can be embedded in the vertical pole, so that the device rotates around the center of the ball support 6-2-1 under the action of horizontal load and tilts. The sliding ribs reduce the friction between the ball support 6-2-1 and the top of the vertical pole.

[0042] The upper cover 6-2-3 is located above the large hole 6-2-2-1 of the socket 6-2-2 and is welded to the socket 6-2-2. A through hole 6-2-3-1 is provided on its upper surface at intervals of 90 degrees for passing the spring limit rod 6-2-6. A circular groove 6-2-3-2 is provided on its lower surface at the position of the through hole 6-2-3-1. The center of the circular groove 6-2-3-2 is located on the same diameter as the center of the hole, and the circular groove 6-2-3-2 is provided at the same diameter as the center of the hole. The center of the circle is located outside to provide deformation space for the elastic vibration-damping flower basket 6-2-5 after being squeezed by the vertical pole; the outer wall of the upper cover 6-2-3 is provided with a thread 6-2-3-4 for connecting the vertical closed ring 6-2-7; the lower corner of the upper cover 6-2-3 is also provided with an arc card slot 6-2-3-3, and the cross-section of the arc card slot 6-2-3-3 is a wedge-shaped surface that is wide at the top and narrow at the bottom, for clamping the rotation limit plate 6-2-9. The upper cover 6-2-3 has no thread at the arc card slot 6-2-3-3.

[0043] The lower base plate 6-2-4 is located below the large hole 6-2-2-1 of the socket sleeve 6-2-2 and is welded to the socket sleeve 6-2-2. Through holes 6-2-4-1 are provided on its lower surface at 90° intervals. The through holes 6-2-4-1 are continuous variable cross-section holes with large ends and a small middle, which are used to pass the spring limit rod 6-2-6 and realize the tilting rotation of the spring limit rod 6-2-6.

[0044] Continue to see Figure 6The elastic vibration-damping basket 6-2-5 is spherical and includes an arc-shaped steel bar 6-2-5-1, an upper fixing ring 6-2-5-2, a lower fixing ring 6-2-5-3 and an inner lining ring 6-2-5-4. The arc-shaped steel bar 6-2-5-1 is arranged as a spherical meridian to form a spherical frame. Its arc-shaped design and spring steel material produce vibration reduction and energy dissipation effects. The upper fixing ring 6-2-5-2 and the lower fixing ring 6-2-5-3 are divided into a vertical section and an arc surface section. The outer wall of the vertical section fixes the end of the arc-shaped steel bar 6-2-5-1, and the curvature of the arc surface section matches the arc-shaped steel bar 6-2-5-1, which is used for welding and fixing the arc-shaped steel bar 6-2-5-1. The upper fixing ring 6-2-5-2 and the lower fixing ring 6-2- 5-3 also has a through hole, which is a continuously variable cross-section hole with large ends and a small middle, for passing the spring limit rod 6-2-6 and realizing the tilting and rotation of the spring limit rod 6-2-6; the inner lining ring 6-2-5-4 is an inward multi-arch structure, including 8 arches, each arch corresponds to the gap between two adjacent arc-shaped steel bars 6-2-5-1, and the arch ends are connected by sealing rings, and each arch end is provided with a slot that is clamped on the arc-shaped steel bar 6-2-5-1; the outer diameter of the ring formed by the sealing ring is equal to the outer diameter of the spherical frame formed by the arc-shaped steel bars 6-2-5-1; when the elastic vibration-damping basket 6-2-5 is in a natural state, the inner lining ring 6-2-5-4 is located at the horizontal plane where the diameter of the sphere is located.

[0045] The spring limiting rod 6-2-6 includes a fixed rod 6-2-6-1, a spring 6-2-6-3, upper and lower sliding washers 6-2-6-4, 6-2-6-5 and a spring pressure ring 6-2-6-2; the fixed rod 6-2-6-1 is made of spring steel and vertically passes through the upper cover 6-2-3, the lower base plate 6-2-4 and the elastic vibration-damping basket 6-2-5. Its cross-sectional diameter is smaller than the through holes of the upper cover 6-2-3, the lower base plate 6-2-4 and the elastic vibration-damping basket 6-2-5. A thread is provided on the upper part to match the inner wall thread of the spring pressure ring 6-2-6-2, and a thread is provided on the lower part to match the nut 6-2-6-6; the sliding washer includes upper and lower sliding washers. The dynamic gasket 6-2-6-46-2-6-5 is arranged on the upper surface of the upper cover 6-2-3 and the lower surface of the lower base plate 6-2-4, and a polytetrafluoroethylene plate is fixed at the contact surface to reduce sliding friction; the spring 6-2-6-3 is placed between the spring pressure ring 6-2-6-2 and the upper sliding gasket 6-2-6-4 and fixed to the two, and the spring 6-2-6-3 is compressed by screwing the bottom nut 6-2-6-6, so that the upper and lower sliding gaskets 6-2-6-4 and 6-2-6-5 are in contact with the upper cover 6-2-3 and the lower base plate 6-2-4; the spring limit rod 6-2-6 is radially biased toward one side of the vertical pole when the elastic vibration-damping basket 6-2-5 is in the natural state.

[0046] The vertical closed ring 6-2-7 is a tubular structure with an inner diameter that is the same as the outer diameter of the upper cover 6-2-3 and the lower base plate 6-2-4. A thread is provided on the inner wall of the top to match and connect with the side thread 6-2-3-4 of the upper cover 6-2-3. A burr is provided inwardly at the bottom so that when the vertical closed ring 6-2-7 is screwed and fully engaged with the thread 6-2-3-4 of the upper cover 6-2-3, the burr at the bottom of the vertical closed ring 6-2-7 contacts the lower base plate 6-2-4 to prevent improper installation. The inner diameter of the vertical closed ring 6-2-7 is equal to the distance from the outermost end of the opposing elastic vibration-damping flower basket 6-2-5 in the initial state, so that the vertical closed ring 6-2-7 contacts the elastic vibration-damping flower basket 6-2-5 in the initial state.

[0047] The radial stiffening plate 6-2-8 is located between the large hole 6-2-2-1 of the socket sleeve 6-2-2, is arranged vertically, connects the outer wall of the socket sleeve 6-2-2 and the inner wall of the vertical closed ring 6-2-7, and strengthens the structural rigidity; the rotation limit plate 6-2-9 is an arc-shaped plate structure, with wedge-shaped protrusions provided on the upper and lower parts, which can be rotatably clamped in the arc groove 6-2-4-2 of the upper cover 6-2-3 and the lower base plate 6-2-4, and stiffening ribs are vertically provided on the convex surface of the arc surface to enhance its rigidity; the rotation limit plate 6-2-9 is in contact with the elastic vibration-damping basket 6-2-5 in the initial state.

[0048] See also Figure 7 The tightening device 5 includes a threaded ring 5-1, a pin 5-6, and a hexagonal nut 5-3. The inner wall of the threaded ring 5-1 is threaded and connected to the threaded connecting pipe 6-1. Rectangular holes 5-1-1 are provided at 90° intervals in the circumference for passing the pin 5-6, and a short steel pipe 5-2 is radially arranged with the center of the rectangular hole 5-1-1 as the center of the circle; the outer wall of the short steel pipe 5-2 is threaded for connecting the hexagonal nut 5-3.

[0049] The latch 5-6 includes a cylindrical section 5-6-1, a pin 5-6-2 and a rubber contact 5-6-3 arranged at the outer end; the cylindrical section 5-6-1 is provided with a concave spherical surface at its outer end, and the other end is fixed to the pin 5-6-2; the pin 5-6-2 is a rectangular cross-section section, which can pass through the rectangular hole 5-1-1 on the side of the threaded ring 5-1 and the vertical groove on the outer wall of the threaded connecting tube 6-1, and its end is fixed to the rubber contact 5-6-3; the contact surface between the rubber contact 5-6-3 and the screw rod 1-2 is arc-shaped to increase friction; the inner wall of the hexagonal nut 5-3 is provided with a thread connected to the short steel pipe 5-2, and the inner bottom is provided with a rotating seat 5-5 and a pre-installed ball 5-4; the ball 5-4 provided at the bottom of the hexagonal nut 5-3 fits into the concave spherical surface of the cylindrical section 5-6-1 of the latch 5-6, so that the screwing of the hexagonal nut 5-3 does not drive the pin 5-6-2 to rotate.

[0050] The vibration-damping connecting pipe 6 is located at a solid position and a handle is provided on the outer wall opposite to the handle, which is used to rotate the vibration-damping connecting pipe 6 to adjust the overall length of the horizontal vibration-damping device to achieve height adjustment of the support plate 1-1.

[0051] According to the above technical solution of the present invention, during the pouring of concrete, the U-shaped support plate on the top of the adjustable top support of the frame generates horizontal reciprocating motion under the action of the dynamic load generated by the concrete pump pipe and the concrete placing machine, thereby driving the entire device to tilt back and forth. The elastic vibration-damping basket 6-2-5 in the socket vibration-damping pipe at the lower part of the vibration-damping connecting pipe in the device effectively reduces the transmission of the dynamic load to the vertical rod caused by the overall reciprocating tilt of the device. Specifically, when tipping occurs, the socket vibration-damping pipe is prone to rotation under the support of the ball head support 6-2-1 and the vertical rod, and the vibration-damping connecting pipe as a whole rotates accordingly, which will cause the bottom of the socket vibration-damping pipe wall on the side of the tilting direction to generate horizontal extrusion impact and vertical impact load on at least one elastic vibration-damping basket 6-2-5, so that the elastic vibration-damping basket 6-2- 5 is deformed. The sphere is squeezed and guided by the circular groove 6-2-3-2 of the upper cover 6-2-3 to deform into an ellipsoid. The large holes in the upper cover 6-2-3 and the lower base plate 6-2-4 provide space for the spring limit rod 6-2-6 to move during deformation, thereby reducing the dynamic effect transmitted to the vertical pole. The elastic vibration-damping flower basket 6-2-5, made of spring steel, can return to its original shape after significant deformation. The multi-arch lining ring 6-2-5-4 design further improves the overall load-bearing capacity of the elastic vibration-damping flower basket 6-2-5. When the elastic vibration-damping flower basket 6-2-5 is deformed, its upper and lower fixing rings 6-2-5-3 may undergo horizontal displacement. The spring limit rod 6-2-6 limits it and also undergoes elastic bending deformation, playing a certain vibration-damping role.

[0052] The threaded connection tube 6-1 on the upper part of the vibration-damping connection tube 6 is connected to the device threadedly through the U-shaped support 1 screw rod 1-2 to achieve the adjustment of the top elevation. At the same time, compared with the traditional adjustable top support directly inserted into the vertical pole, this device avoids the collision vibration at the position of the screw rod 1-2, so it is necessary to take measures to relatively fix the screw rod 1-2 and protect the thread at the same time. Specifically, the variable-section rubber pad 4 set on the top of the threaded connection tube 6-1 is tightened to avoid the direct and large impact of the screw rod 1-2 on the top thread of the threaded connection tube 6-1 under the action of horizontal dynamic load. At the same time, the tightening device 5 on the threaded connecting tube 6-1 can be adjusted up and down according to the bottom position of the screw rod 1-2, and the bottom of the screw rod 1-2 is tightened and fixed by the latch 5-6; the design of the built-in ball 5-4 of the hexagonal nut 5-3 ensures that the latch 5-6 part does not rotate when the hexagonal nut 5-3 is turned, so that the latch 5-6 can smoothly pass through the rectangular hole 5-1-1 on the side wall of the threaded ring 5-1, and the curved surface of the rubber contact 5-6-3 at the other end of the pin 5-6-2 can be correctly positioned against the screw rod 1-2, generating an effective restraining force on the screw rod 1-2. This device greatly reduces the collision damage of the screw rod 1-2 and the upper end thread of the threaded connecting tube 6-1 under the action of impact loads by tightening and fixing the screw rod 1-2 in the threaded connecting tube 6-1 up and down, ensuring the effective connection between the screw rod 1-2 and the threaded connecting tube 6-1, while preventing the screw rod 1-2 from rotating loose under the action of dynamic loads.

[0053] This device retains the function of adjusting the elevation of the U-shaped support 1. At the same time, it realizes vibration reduction and energy dissipation of the upper horizontal dynamic load through the vibration-damping connecting pipe 6 at the bottom of the device, avoiding the risk of collapse caused by the horizontal dynamic load transmitted through the formwork during concrete pouring directly transmitted to the formwork frame uprights, thereby improving the safety of tall formwork frames during construction.

[0054] Example 2

[0055] See the instructions attached Figure 1-7 , with respect to the high-support formwork vibration reduction device of the present invention, the specific construction and installation steps are described in detail:

[0056] Before pouring concrete, install the horizontal vibration reduction device. The specific installation steps are as follows:

[0057] 1. Weld the upper cover plate, stiffening plate and lower base plate 6-2-4 to the socket sleeve 6-2-2. At the same time, use the fixing rod 6-2-6-1 to pre-pierce the holes of the upper cover plate and lower base plate 6-2-4. Align the holes of the upper cover plate and lower base plate 6-2-4 to facilitate the re-installation of the fixing rod 6-2-6-1.

[0058] 2. Insert the elastic vibration-damping flower basket 6-2-5 between the stiffening plates. Slide the spring pressure ring 6-2-6-2, spring 6-2-6-3, and upper sliding gasket 6-2-6-4 onto the fixing rod 6-2-6-1. Insert the fixing rod 6-2-6-1 from the top of the upper cover. The fixing rod 6-2-6-1 passes through the upper cover, the elastic vibration-damping flower basket 6-2-5, and the lower base plate 6-2-4. Then, insert the lower sliding gasket 6-2-6-5 into the bottom of the fixing rod 6-2-6-1. Screw in the nut 6-2-6-6 so that the sliding gasket contacts the upper cover 6-2-3 and the lower base plate 6-2-4.

[0059] 3. Rotate and install the rotation limit plate 6-2-9 along the arc slot 6-2-4-2 of the upper cover plate and the lower base plate 6-2-4;

[0060] 4. Insert the vertical closed ring 6-2-7 from the bottom and tighten it;

[0061] 5. Install the vibration-damping connecting pipe 6; insert the socket-and-spigot vibration-damping pipe 6-2 onto the vertical pole and place it naturally. At this time, the top ball head support 6-2-1 inside the socket-and-spigot pipe 6-2-2 is embedded in the vertical pole;

[0062] 6. Screw the threaded ring 5-1 of the tightening device 5 from above the threaded connecting pipe 6-1 to install them as a whole;

[0063] 7. Insert the variable-section rubber pad 4 and the gasket 3 into the top end of the threaded connecting pipe 6-1 of the vibration-damping connecting pipe 6 in sequence;

[0064] 8. After tightening the compression nut 2 to the top of the screw rod 1-2 of the U-shaped support 1, screw it into the U-shaped support 1 from above the threaded connecting pipe 6-1;

[0065] 9. Turn the handle 6-3 to adjust the overall length of the device so that the support plate 1-1 reaches the designed elevation;

[0066] 10. Screw the threaded ring 5-1 to the bottom end of the screw rod 1-2, and fine-tune the threaded ring 5-1 to align with the rectangular hole 5-1-1 in the short steel pipe 5-2 on the side of the threaded ring 5-1 and the vertical groove of the threaded connecting pipe 6-1;

[0067] 11. Pre-install the ball 5-4 in the rotating seat 5-5, stick the rotating seat 5-5 into the hexagon socket nut 5-3, insert the latch 5-6 into the rectangular hole 5-1-1 on the side of the tightening device 5 and the vertical slot of the threaded connecting pipe 6-1, screw the hexagon socket nut 5-3 onto the external thread of the short steel pipe 5-2, and continue to tighten the hexagon socket nut 5-3 to press the latch 5-6 radially inward until the rubber contact 5-6-3 at the end of the pin shaft 5-6-2 of the latch 5-6 contacts the side wall of the screw rod 1-2; in this step, tighten both hexagon socket nuts 5-3 simultaneously;

[0068] 12. Tighten the compression nut 2 to compress the variable-section rubber pad 4 to fix the screw 1-2;

[0069] 13. Pour floor slab concrete.

[0070] During concrete pouring, the U-shaped support plate at the top of the adjustable jacking support generates horizontal reciprocating motion under the dynamic loads generated by the concrete pump pipe and the concrete placing boom, causing the entire device to tilt back and forth. The elastic vibration-damping basket 6-2-5 in the socket-and-socket vibration-damping tube at the lower portion of the vibration-damping connecting pipe effectively mitigates the transmission of dynamic loads to the uprights caused by this reciprocating tilt of the device. The threaded connection pipe 6-1 at the upper portion of the vibration-damping connecting pipe 6 is threadedly connected to the device via the U-shaped support 1, screw 1-2, enabling adjustment of the top elevation. Furthermore, compared to conventional adjustable jacking supports that are directly inserted into the uprights, this device avoids collision vibration at the location of screw 1-2. By tightening screw 1-2 above and below the threaded connection pipe 6-1, this device significantly reduces collision damage to the screw 1-2 and the upper threads of the threaded connection pipe 6-1 under impact loads, ensuring an effective connection between the screw 1-2 and the threaded connection pipe 6-1 while preventing the screw 1-2 from loosening due to dynamic loads.

[0071] This device retains the function of adjusting the elevation of the U-shaped support 1. At the same time, it realizes vibration reduction and energy dissipation of the upper horizontal dynamic load through the vibration-damping connecting pipe 6 at the bottom of the device, avoiding the risk of collapse caused by the horizontal dynamic load transmitted through the formwork during concrete pouring directly transmitted to the formwork frame uprights, thereby improving the safety of tall formwork frames during construction.

[0072] The above describes in detail the vibration reduction device for a high-rise formwork provided by the present invention. Specific embodiments are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is intended only to facilitate understanding of the method and core concepts of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A high-support formwork vibration reduction device, comprising a U-shaped support and a vertical rod, characterized in that: It also includes a compression nut (2), a gasket (3), a variable-section rubber pad (4) and a vibration-damping connecting pipe (6); the U-shaped support (1) includes a supporting plate (1-1) and a screw rod (1-2); the supporting plate (1-1) is fixed on the screw rod (1-2); The vibration-damping connecting pipe (6) is composed of a threaded connecting pipe (6-1) and a socket-type vibration-damping pipe (6-2). A small-section threaded section is provided at the inner upper end of the threaded connecting pipe (6-1) for passing through the screw rod (1-2) of the U-shaped support (1) for threaded connection. An external thread is provided on the outer wall of the threaded connecting pipe (6-1). The top end of the threaded connecting pipe (6-1) is a bevel end, and the variable-section rubber pad (4) is embedded in the bevel end. The gasket (3) is arranged above the variable-section rubber pad (4), and the clamping nut (2) is arranged above the gasket (3). The clamping nut (2) is threadedly connected to the screw rod (1-2), and its lower surface uniformly presses the variable-section rubber pad (4) by contacting the gasket (3), thereby tightening the upper part of the screw rod (1-2); The socket-and-spigot vibration damping pipe (6-2) comprises a socket-and-spigot sleeve (6-2-2), a ball head support (6-2-1), a spring limiting rod (6-2-6), an elastic vibration damping basket (6-2-5), an upper cover (6-2-3), a lower base plate (6-2-4), and a vertical closing ring (6-2-7). The upper end of the socket-and-spigot sleeve (6-2-2) is integrated with the threaded connecting pipe (6-1), and the lower end of the socket-and-spigot sleeve (6-2-2) is inserted into the vertical pole. A plurality of large holes (6-2-2-1) are spaced apart at the bottom of the socket-and-spigot sleeve (6-2-2) for exposing a portion of the elastic vibration damping basket (6-2-5). The ball head support (6-2-1) is hemispherical and fixed to the inner top of the socket sleeve (6-2-2); the vertical closed ring (6-2-7) is a tubular structure, and its inner diameter is the same as the outer diameter of the upper cover (6-2-3) and the lower base plate (6-2-4); the top inner wall of the vertical closed ring (6-2-7) is provided with a thread, and the bottom is provided with a burr inwardly; the upper cover (6-2-3) is located at the large hole (6-2-2- 1) The upper portion is welded and fixed to the socket sleeve (6-2-2), and the outer wall of the upper cover (6-2-3) is provided with a thread for screwing with the top inner wall of the vertical closed ring (6-2-7); the lower base plate (6-2-4) is located below the large hole (6-2-2-1) of the socket sleeve (6-2-2) and is welded and fixed to the socket sleeve (6-2-2), and the bottom burr of the vertical closed ring (6-2-7) is in contact with the lower base plate (6-2-4); The upper cover (6-2-3) and the lower base plate (6-2-4) are both provided with a plurality of through holes at corresponding intervals along the circumferential direction; the elastic vibration-damping flower basket (6-2-5) is spherical; the number of the spring limiting rods (6-2-6) and the number of the elastic vibration-damping flower baskets (6-2-5) are both the same as the number of the plurality of through holes; the elastic vibration-damping flower basket (6-2-5) is provided with an upper fixing ring (6-2-5-2) and a lower fixing ring (6-2-5-3) above and below; the spring limiting rod (6-2-6) passes through the upper cover (6-2-3), the upper fixing ring (6-2-5-2) of the elastic vibration-damping flower basket (6-2-5), the lower fixing ring (6-2-5-3), and the lower base plate (6-2-4) in sequence.

2. A high-support formwork vibration reduction device according to claim 1, characterized in that: The upper half of the variable-section rubber pad (4) is a ring with a constant cross-section, and the lower half is a continuously variable-section ring. The continuously variable-section ring is inserted into the groove end and is used to fasten the screw rod (1-2).

3. The high-support formwork vibration reduction device according to claim 1, characterized in that: The screw rod (1-2) is provided with a long slot in a vertically adjustable range, and an anti-rotation plug is radially provided on the inner ring of the gasket (3). The anti-rotation plug is inserted into the long slot of the screw rod (1-2) to prevent the rubber pad from rotating and causing additional deformation when the upper clamping nut (2) is screwed.

4. The high-support formwork vibration reduction device according to claim 1, characterized in that: It also includes a tightening device (5), which is sleeved on the threaded connection pipe (6-1) portion of the vibration-damping connection pipe (6). The outer wall of the threaded connection pipe (6-1) is provided with a plurality of vertical grooves at intervals, and the vertical grooves are arranged through-through.

5. The high-support formwork vibration reduction device according to claim 1, characterized in that: The tightening device (5) comprises a threaded ring (5-1), a latch pin (5-6) and a hexagon socket nut (5-3); the threaded ring (5-1) has a threaded inner wall for connection with a threaded connecting pipe (6-1); a plurality of rectangular holes (5-1-1) are provided at intervals in the circumference thereof for passing the latch pin (5-6); a short steel pipe (5-2) is radially arranged with the center of the rectangular hole (5-1-1) as the center of a circle; the short steel pipe (5-2) has a threaded outer wall for connection with the hexagon socket nut (5-3); The latch (5-6) comprises a cylindrical section (5-6-1) provided at the outer end, a pin (5-6-2) and a rubber contact (5-6-3); the cylindrical section (5-6-1) has a concave spherical surface provided at its outer end, and the other end is fixed to the pin (5-6-2); the pin (5-6-2) is a rectangular cross-section section, which passes through the rectangular hole (5-1-1) on the side of the threaded ring (5-1) and the vertical groove on the outer wall of the threaded connecting pipe (6-1), and its end is fixed to the outer wall of the threaded connecting pipe (6-1). A rubber contact (5-6-3) is fixed on the bottom; the contact surface between the rubber contact (5-6-3) and the screw rod (1-2) is arc-shaped; a thread is provided on the inner wall of the hexagonal nut (5-3) for connection with the short steel pipe (5-2); a rotating seat (5-5) is provided on the inner bottom thereof and a ball (5-4) is pre-installed; the ball (5-4) provided on the bottom of the hexagonal nut (5-3) is fitted with the concave spherical surface of the cylindrical section (5-6-1) of the latch (5-6).

6. The high-support formwork vibration reduction device according to claim 1, characterized in that: The elastic vibration-damping flower basket (6-2-5) further includes an arc-shaped steel bar (6-2-5-1) and an inner lining ring (6-2-5-4). The arc-shaped steel bar (6-2-5-1) is arranged as a spherical meridian to form a spherical frame. The upper fixing ring (6-2-5-2) and the lower fixing ring (6-2-5-3) are divided into a vertical section and an arc surface section. The outer wall of the vertical section fixes the end of the arc-shaped steel bar (6-2-5-1). The surface curvature of the arc surface section matches the arc-shaped steel bar (6-2-5-1) and is used for welding and fixing the arc-shaped steel bar (6-2-5-1). The inner lining ring (6-2-5-4) is an inward multi-arch structure. Each arch corresponds to the gap between two adjacent arc-shaped steel bars (6-2-5-1), and the arch ends are connected by a sealing ring. Each arch end is provided with a slot that is clamped on the arc-shaped steel bar (6-2-5-1).

7. The high-support formwork vibration reduction device according to claim 1, characterized in that: The spring limiting rod (6-2-6) comprises a fixing rod (6-2-6-1), a spring (6-2-6-3), an upper sliding gasket (6-2-6-4), a lower sliding gasket (6-2-6-5) and a spring pressure ring (6-2-6-2); the fixing rod (6-2-6-1) has an upper thread that matches the inner wall thread of the spring pressure ring (6-2-6-2), and a lower thread that matches the nut (6-2-6-6); the upper sliding gasket (6-2-6-4) and the lower sliding gasket (6-2-6-5) are respectively arranged on the upper surface of the upper cover (6-2-3) and the lower surface of the lower base plate (6-2-4); the spring (6-2-6-3) is placed between the spring pressure ring (6-2-6-2) and the upper sliding gasket (6-2-6-4) and fixed to the two.

8. The high-support formwork vibration reduction device according to claim 1, characterized in that: The socket-and-spigot vibration damping pipe (6-2) further comprises a radial stiffening plate (6-2-8) and a rotational insertion limit plate (6-2-9). The radial stiffening plate (6-2-8) is located between the large hole (6-2-2-1) of the socket-and-spigot sleeve (6-2-2), is arranged vertically, and connects the outer wall of the socket-and-spigot sleeve (6-2-2) and the inner wall of the vertical closed ring (6-2-7). The rotational insertion limit plate (6-2-9) is an arc-shaped plate structure, with wedge-shaped protrusions provided on the upper and lower parts, and is clamped on the upper cover (6-2-3) and the lower base plate (6-2-4).

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