Hourglass type vertical damping device for high and large formwork support

Abstract

The invention belongs to the technical field of constructional engineering, and particularly relates to a high and large formwork support hourglass type vertical damping device which comprises a U-shaped support, a hand pulling supporting pipe, a damping spring, a first threaded pipe, a second threaded pipe and an hourglass type unloading assembly. The U-shaped support lead screw part is in threaded connection with the hand-pulling supporting pipe, the top of the vertical rod is sleeved with the hand-pulling supporting pipe, and the damping spring is located between the hand-pulling supporting pipe and the first threaded pipe. According to the device, vertical kinetic energy transmitted by concrete pouring is reduced through the damping springs, the damping effect is achieved, potential safety hazards caused by direct impact of vertical dynamic loads on the formwork support are reduced, and the safety and reliability of high and large formwork support concrete construction are improved; according to the sand clock principle, the force bearing effect and the buffering effect of a sand body are ingeniously utilized, vibration reduction of dynamic loads can be achieved while bearing can be achieved, and by means of the granularity of sand grains, slow downward leakage can be achieved, so that spring loads are slowly removed after concrete pouring is completed.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction engineering, and particularly relates to an hourglass-shaped vertical vibration damping device for high and large formwork supports. Background Art

[0002] CN108625588A discloses an energy-dissipating vibration damping wheel-fastening type scaffolding fastener, including a vertical steel pipe. A wheel disc is arranged in the middle of the vertical steel pipe, and a pin is arranged in the convex through-hole of the wheel disc. Four connecting flanges are evenly arranged axially on the wheel disc, and a convex through-hole is arranged between two of the connecting flanges. The pin includes a pipe seat and a plug-in block. The plug-in block includes a connecting part and an installation part. One end plane of the pipe seat is fixedly installed with one end of the connecting part of the plug-in block. A transverse steel pipe is arranged in the middle of the other end plane of the pipe seat. A transverse through-hole is arranged in the installation part of the plug-in block, a convex platform is arranged on the inclined plane part of the installation part of the plug-in block, a curling piece is arranged at the other end of the connecting part of the plug-in block, a groove is arranged in the middle of the curling piece, and a rubber piece is arranged at one end of the curling piece away from the connecting part. The vibration damping effect of the above structure is limited, especially for high and large formwork supports, the vibration damping effect is minimal, and it is easy to cause serious accidents such as the collapse of the formwork support. Due to the action of the dynamic load generated by the formwork support body bearing the concrete pouring, the construction such as pouring, vibrating the concrete and placing large-scale placing equipment generates a large vertical dynamic load. Compared with the static load, the dynamic load greatly weakens the safety and reliability of the formwork support body.

[0003] CN117758997A discloses a disk-fastening type scaffolding structure and construction method, including a supporting vertical rod. A supporting disk is arranged on the supporting vertical rod, the supporting disk is fixedly connected with the supporting vertical rod, a supporting cross rod is arranged on the supporting disk, a supporting inclined rod is arranged on the supporting disk, a rotating block one is fixed at one end of the supporting inclined rod, a rotating block two is rotatably connected to the rotating block one, and connecting mechanisms are arranged between the supporting cross rod, the rotating block two and the supporting disk. A clamping and supporting mechanism for supporting the supporting cross rod is arranged on the supporting disk. Similarly, due to the ineffective consideration of the vibration damping effect in the above structure, it is difficult for high and large formwork supports to cope with the large vertical dynamic loads generated by construction such as concrete pouring, vibrating and placing large-scale placing equipment. Furthermore, due to the lack of effective vibration damping measures, the probability of the collapse of high and large formwork supports is greatly increased. Summary of the Invention

[0004] In view of the above deficiencies in the prior art, the present invention provides an hourglass-shaped vertical vibration damping device for high and large formwork supports to solve the problem that high and large formwork supports in the prior art are prone to collapse.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] It includes a U-shaped support, a hand-operated support pipe, a damping spring, a first threaded pipe, a second threaded pipe, and an hourglass-shaped unloading assembly; the threaded part of the U-shaped support is threadedly connected to the hand-operated support pipe, and the hand-operated support pipe is sleeved on the top of the vertical rod; the damping spring is located between the hand-operated support pipe and the first threaded pipe;

[0007] Further, the outer wall of the first threaded pipe is provided with external threads, and the second threaded pipe includes a vertical section and a tapered section; the inner wall of the second threaded pipe is provided with threads for mating connection with the external threads of the first threaded pipe, and the first threaded pipe and the second threaded pipe are threadedly mated and connected to form a superimposed section as a spring support;

[0008] Further, the hourglass-shaped unloading assembly includes a force-transmitting hourglass bucket, an unloading device, a sand-containing bucket, and a support sleeve. The force-transmitting hourglass bucket contains sand inside. The inner wall step is placed on the support sleeve to form a support, and the bottom is designed with a hollow; the unloading device is arranged between the force-transmitting hourglass bucket and the sand-containing bucket, and by operating the unloading device, the sand remaining inside the force-transmitting hourglass bucket can enter the sand-containing bucket;

[0009] Further, the bottom surface of the tapered section is a large annular cross-section, and its radial ring width is slightly smaller than the radial ring width of the upper part of the force-transmitting hourglass bucket in the hourglass-shaped unloading assembly. The tapered section is inserted into the force-transmitting hourglass bucket; the force-transmitting hourglass bucket in the hourglass-shaped unloading assembly includes a vertical cavity and a funnel cavity. Threads are provided on the inner side of the top of the outer wall of the vertical cavity, and a pressure ring and an annular rubber strip are provided;

[0010] Further, the outer vertical surface of the pressure ring is provided with mating threads for threaded connection with the inner wall of the vertical cavity. A wedge-shaped groove is provided on the lower surface for fixing the annular rubber strip. By screwing the pressure ring to compress the annular rubber strip, the annular rubber strip is tightly squeezed with the pressure ring, the tapered section of the spring support, and the outer wall of the vertical cavity to form a seal, preventing sand from leaking out when the sand bears force.

[0011] Further, the outer wall of the funnel cavity is designed with vertical and oblique broken lines, forming an annular horizontal step and then welded to form a reduced-diameter connection, and the inner wall of the funnel cavity with a larger diameter is sleeved on the top of the support sleeve.

[0012] Further, the unloading device includes a sand-leaking column disk, an unloading chassis, and a boosting spring. The unloading chassis is located at the bottom of the sand-leaking column disk and is connected to the force-transmitting hourglass bucket through a side buckle; the sand-leaking column disk is arranged at the bottom of the force-transmitting hourglass bucket and is threadedly connected to the boosting spring; the boosting spring provides a pre-tension for the dropping of the sand-leaking column disk, and its lower part is threadedly connected to the support sleeve; the support sleeve is placed on the pin of the highest disk of the vertical rod.

[0013] Further, the hand-operated support tube includes a hand-operated nut and a support tube. The long section of the support tube is fixedly welded to the lower surface of the hand-operated nut and sleeved outside the vertical rod. The short section of the support tube sleeved the upper connection ring of the damping spring. Through holes are oppositely formed on the side wall of the short section of the support tube for fixing with the upper connection ring by screws. A visual window is also arranged on the upper part of the hand-operated support tube for observing the position of the internal vertical rod.

[0014] Further, the damping spring includes an upper connection ring, a lower connection ring and a spring. The upper connection ring and the lower connection ring are respectively fixed to the upper and lower end parts of the spring. Radial screw holes are oppositely formed on the side walls of the upper connection ring and the lower connection ring respectively for fixing with the hand-operated support tube and the first threaded tube.

[0015] Further, through holes are oppositely formed on the side wall of the short upper section of the first threaded tube, which sleeved the lower connection ring of the damping spring and is fixed to it by screws. External threads are formed on the outer wall of the long lower section of the first threaded tube for connecting with the second threaded tube. A scale groove is also vertically formed on the long section of the first threaded tube.

[0016] Further, the unloading chassis includes a chassis, a buckle, a pull ring and a pull rope. A sealing ring is arranged around the chassis to form a circular ring groove. A semi-circular cross-section annular bearing boss is arranged on the upper surface of the chassis located in the circular ring groove to support the sand leakage vertical column disc.

[0017] The buckle is the same as the bottom buckle of the force-transmitting sand funnel and is centrosymmetric with the buckle. The buckle is fixed on the upper surface of the sealing ring and corresponds to the position of the bottom buckle of the force-transmitting sand funnel. A buckle is arranged at the bottom outside the outer wall of the funnel cavity for connecting with the unloading chassis. A bevel is arranged at the end of the buckle. Two deflection rings are oppositely arranged at a certain distance from the buckle and are fixed on the base.

[0018] Further, the upper end of the pull rope is connected to the pull ring, and the other end naturally hangs down after passing through the deflection ring at the bottom of the force-transmitting sand funnel.

[0019] Further, vertical grooves are arranged at intervals on the outer wall of the top of the support sleeve. The inner and outer walls of the funnel cavity are fixedly connected by four inverted T-beam webs arranged circumferentially at the bottom, and the bottom of the force-transmitting sand funnel is formed with a hollow. The inverted T-beam flange plate at the bottom of the sand funnel extends radially out of the inner wall of the funnel cavity, and the part extending out of the inner wall of the funnel cavity is clamped with the vertical groove at the top of the support sleeve to limit the rotation of the force-transmitting sand funnel.

[0020] Further, external convex threads are arranged near the bottom of the support sleeve for connecting the sand-containing bucket and the boosting spring. A frustum is arranged at the bottom end of the support sleeve, and the frustum is supported on the disc buckle pin at the top of the vertical rod to form a support.

[0021] Furthermore, the assisting spring includes a spring, an upper connecting ring and a lower connecting ring; both ends of the spring are fixedly welded to the upper connecting ring and the lower connecting ring respectively; external threads are provided on the outer wall of the upper connecting ring and are connected in a matching manner with a threaded movable ring at the bottom of the sand leakage upright column disc; internal threads are provided on the inner surface of the bottom of the lower connecting ring and are connected in a matching manner with the external convex threads near the bottom of the support sleeve.

[0022] Furthermore, the sand bucket is divided into an upper bucket body and a lower bucket body. The bottom of the upper bucket body is radially provided with screw holes at intervals, and the top of the lower bucket body is radially provided with bolt holes at intervals. The lower bucket body is sleeved into the upper bucket body and the two are connected by bolts; a circular sealing plate is provided at the bottom end of the lower bucket body, and a circular hole is provided in the center of the sealing plate. Threads are provided on the hole wall and are connected in a matching manner with the external convex threads on the lower part of the support sleeve.

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

[0024] 1. The device reduces the vertical kinetic energy transmitted by concrete pouring through the damping spring, plays a damping effect, reduces the potential safety hazards caused by the direct impact of the vertical dynamic load on the formwork support, and improves the safety and reliability of concrete construction of high and large formwork supports;

[0025] 2. When multiple vertical damping devices are used, the single-point large impact load within the range of using the device is borne by multiple vertical damping devices within this range, avoiding the risk of overall collapse caused by excessive local impact pressure on a single vertical rod at the corresponding position of the formwork support due to excessive local impact load during concrete pouring;

[0026] 3. The adjustment of the preset compression amount enables the device to provide a relatively accurate spring damping effect under different slab thickness loads, enhancing the applicability of the device;

[0027] 4. According to the principle of the hourglass, the bearing effect and buffering effect of the sand body are skillfully utilized. It can bear and at the same time achieve the damping of the dynamic load. Also, due to the granularity of the sand grains, it can slowly leak, so that after the concrete pouring is completed, the spring load is slowly removed and transferred to the vertical rod, and at the same time the elevation returns to the original position;

[0028] 5. By using the pull rope and the deflecting ring, the direction of the force applied to the buckle 2 is skillfully changed, so that the operator can horizontally pull the buckle 2 by vertically pulling the pull rope only at the bottom of the frame. At the same time, the two pairs of buckled buckles are arranged at the positions on the circumference at both ends of the diameter of the unloading chassis, making the initial horizontal pulling force arm the largest and capable of horizontally rotating around the center of the unloading chassis to separate the connected buckles, so as to realize the slow dropping of the sand body into the sand bucket and the elevation returning to the original position. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of an hourglass-type vertical damping device for a high and large formwork support of the present invention;

[0030] Figure 2 Schematic explosion diagram of the hourglass unloading component of the present invention;

[0031] Figure 3 Schematic diagram of the U-shaped support, hand-operated support pipe, damping spring, first threaded pipe, and second threaded pipe of the present invention;

[0032] Figure 4 Schematic diagram of the flange plate extending a certain distance from the inner wall of the funnel cavity of the present invention;

[0033] Figure 5 Schematic explosion diagram of the force-transmitting hourglass barrel of the present invention;

[0034] Figure 6 Schematic diagram of the sand leakage column disk and unloading chassis of the present invention;

[0035] Figure 7 Schematic diagram of the support sleeve, boosting spring, and sand bucket of the present invention;

[0036] Figure 8 Schematic diagrams of different operating states of the hourglass-type vertical damping device for a high formwork support of the present invention, namely from state W to state Z. Detailed implementation manners

[0037] In order to enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] Embodiment 1

[0039] As Figure 1-8 shown, a kind of hourglass-type vertical damping device for a high formwork support includes a U-shaped support 1, a hand-operated support pipe 2, a damping spring 3, a first threaded pipe 4, a second threaded pipe 5, and an hourglass unloading component 6;

[0040] The screw part of the U-shaped support 1 is threadedly connected to the hand-operated support pipe 2, and the hand-operated support pipe 2 is sleeved on the top of the vertical rod;

[0041] The damping spring 3 is located between the hand-operated support pipe 2 and the first threaded pipe 4 to achieve the damping effect; the first threaded pipe 4 and the second threaded pipe 5 are threadedly and matingly connected to form an overlapping section as the spring support, and its length can be adjusted by a scale;

[0042] The hourglass unloading component 6 includes a force - transmitting hourglass barrel 6-1, a sand - leaking vertical column disk 6-2, an unloading chassis 6-3, a sand - holding barrel 6-5, a boosting spring 6-4, and a support sleeve 6-6; sand remains inside the force - transmitting hourglass barrel 6-1, the inner wall step thereof is placed on the support sleeve 6-6 to form a support, and the bottom is designed with a hollow; the overlapping section is connected to the damping spring 3 and serves as a spring support, the lower half of which is conical, and the bottom surface is placed on the sand body inside the force - transmitting hourglass barrel 6-1 to transmit the load;

[0043] The unloading chassis 6-3 is located at the bottom of the sand - leaking vertical column disk 6-2 and is connected to the force - transmitting hourglass barrel 6-1 through side buckles; the sand - leaking vertical column disk 6-2 is arranged at the bottom of the force - transmitting hourglass barrel 6-1 and is threadedly connected to the boosting spring 6-4; the boosting spring 6-4 provides a pre - tension for the fall of the sand - leaking vertical column disk 6-2, and its lower part is threadedly connected to the support sleeve 6-6; the support sleeve 6-6 is placed on the pin of the highest disk of the vertical column and transmits the load.

[0044] The hand - operated support pipe 2 includes a traditional hand - operated nut 2-1 and a support pipe 2-2. The long section of the support pipe 2-2 is welded and fixed to the lower surface of the hand - operated nut 2-1. The inner diameter of the long section is slightly larger than the outer diameter of the vertical column, and it is sleeved outside the vertical column. The short section of the support pipe 2-2 is sleeved on the upper connection ring 3-1 of the damping spring 3. Through - holes 2-2-2 are oppositely opened on the side wall of the short section of the support pipe 2-2 for fixing with the upper connection ring 3-1 through screws; a visual window 2-2-1 is also provided on the upper part of the hand - operated support pipe 2 for observing the position of the internal vertical column;

[0045] The damping spring 3 includes an upper connection ring 3-1, a lower connection ring 3-3, and a spring 3-2. The connection ring 3-1 and the lower connection ring 3-3 are fixed to the upper and lower ends of the spring 3-2 respectively; through - holes 3-1-1 and 3-3-1 are oppositely and radially opened on the side walls of the connection ring 3-1 and the lower connection ring 3-3. The through - holes 3-1-1 and 3-3-1 do not penetrate the side walls and are used for connecting with the hand - operated support pipe 2 and the first threaded pipe 4 respectively;

[0046] Through - holes 4-1-1 are oppositely opened on the side wall of the short upper section 4-1 of the first threaded pipe 4, which is sleeved on the lower connection ring 3-3 of the damping spring 3 and is fixed to it with screws 4-3; the inner diameter of the long lower section 4-2 of the first threaded pipe 4 is larger than the outer diameter of the vertical column, leaving a falling space when the elevation returns; external threads are provided on the outer wall of the long lower section 4-2 of the first threaded pipe 4 for connecting with the second threaded pipe 5; a scale groove (B) is also vertically opened on the long section of the first threaded pipe 4 for precisely adjusting its exposed length;

[0047] The second threaded pipe 5 includes a vertical section 5-1 and a tapered section 5-2. Threads are provided on the inner wall of the second threaded pipe 5, which is threadedly connected to the lower long section 4-2 of the first threaded pipe 4 to form an overlapping section. The length of the overlapping section is adjustable. The standard for setting the length of the overlapping section is that after the spring reaches the maximum compression caused by the load, the overlapping section of this set length still serves as a spring support to maintain an effective and reliable force transmission state, ensuring that the situation where the hand-operated nut directly transfers the load to the top of the vertical rod and the spring fails to play a shock-absorbing role does not occur; a tapered section 5-2 is provided at the bottom of the second threaded pipe 5. The bottom surface of the tapered section 5-2 is a large annular cross-section, and its radial ring width is slightly smaller than the radial ring width of the upper part of the force-transmitting hourglass barrel 6-1 in the hourglass-shaped unloading assembly 6. The gap between the bottom surface of the tapered section 5-2 and the inner and outer walls of the force-transmitting hourglass barrel 6-1 is small, ensuring that sand cannot escape through this; the tapered section 5-2 is inserted into the force-transmitting hourglass barrel 6-1, and its large bottom area reduces the pressure and prevents it from sinking, making the force-bearing of the sand body more reliable.

[0048] The force-transmitting hourglass barrel 6-1 in the hourglass-shaped unloading assembly 6 includes a vertical cavity 6-1-1 and a funnel cavity 6-1-2;

[0049] The outer wall of the vertical cavity 6-1-1 is vertically designed, and the inner wall is also vertically designed; the inner diameter of the inner wall of the vertical cavity 6-1-1 is slightly larger than the outer diameter of the vertical rod, so it closely adheres to the vertical rod; threads are provided on the inner side of the top of the outer wall of the vertical cavity 6-1-1, and a pressure ring 6-1-1-1 and an annular rubber strip 6-1-1-2 are provided; a matching thread is provided on the outer vertical surface of the pressure ring 6-1-1-1 to be threadedly connected to the inner wall thread of the vertical cavity 6-1-1, and a wedge-shaped groove is provided on the lower surface for fixing the annular rubber strip 6-1-1-2; the annular rubber strip 6-1-1-2 is located between the pressure ring 6-1-1-1, the tapered section 5-2 of the spring support, and the outer wall of the vertical cavity 6-1-1, and is inserted into the wedge-shaped groove on the lower surface of the pressure ring 6-1-1-1 to prevent it from falling; by screwing the pressure ring 6-1-1-1 to compress the annular rubber strip 6-1-1-2, the annular rubber strip 6-1-1-2 is squeezed tightly with the pressure ring 6-1-1-1, the tapered section 5-2 of the spring support, and the outer wall of the vertical cavity 6-1-1 to form a seal, preventing sand from leaking out when the sand body bears force;

[0050] The outer wall of the funnel cavity 6-1-2 is designed with vertical oblique broken lines and is welded to the outer wall of the vertical cavity 6-1-1 as a whole. The inner wall of the funnel cavity 6-1-2 is also vertically designed, but its inner diameter is larger than that of the vertically designed inner wall of the vertical cavity 6-1-1 above it. Therefore, a ring-shaped horizontal step is provided between the two and welded to form a reduced-diameter connection. Moreover, the inner diameter of the enlarged-diameter inner wall of the funnel cavity 6-1-2 is slightly larger than the outer diameter of the support sleeve 6-6, so it can be sleeved on the top of the support sleeve 6-6, enabling the lower surface of the ring-shaped horizontal step at the reduced-diameter connection of the inner walls of the vertical cavity 6-1-1 and the funnel cavity 6-1-2 to fall on the top surface of the support sleeve 6-6 to transfer the load. At the bottom outside the outer wall of the funnel cavity 6-1-2, a buckle 1 (6-1-2-1) is provided to connect with the unloading chassis 6-3. The end of the buckle 1 (6-1-2-1) is provided with a bevel for easy installation. At a certain distance from the buckle 1 (6-1-2-1), two deflection rings 6-1-2-3 are arranged oppositely and fixed on the base 6-1-2-2. The purpose is to change the setting direction of each pulling rope 6-3-6 and thus change the direction of the tension in the pulling rope. At the same time, when two deflection rings 6-1-2-3 are arranged oppositely, the tensions in the horizontal sections at the tops of the two pulling ropes 6-3-6 can be directly set to be parallel and opposite in direction, so as to control the rotation of the unloading chassis 6-3 at the top of the frame around its center through the pulling rope 6-3-6 on the ground, and thus complete the clamping, opening, and separation of the unloading chassis 6-3 and the bottom of the force-transmitting hourglass barrel 6-1 through the bayonet 2 (6-3-4) and the buckle 1 (6-1-2-1) at the bottom of the force-transmitting hourglass barrel 6-1, thereby realizing sand leakage unloading and restoring the elevation. The function of the deflection ring 6-1-2-3 is to change the direction of the complete pulling rope 6-3-6 from the near-ground end upward to a horizontal setting when passing through the deflection ring 6-1-2-3. However, the pulling rope 6-3-6 is not disconnected and remains a whole piece, only its setting direction is changed by the deflection ring 6-1-2-3, so it is naturally divided into a hanging section and a horizontal section with the deflection ring 6-1-2-3 as the boundary. Therefore, when a vertically downward pulling force is applied to the bottom end of the hanging section of the pulling rope 6-3-6 near the ground, as the vertically arranged pulling rope 6-3-6 from bottom to top changes its direction passively to a horizontal setting when passing through the deflection ring 6-1-2-3, the direction of the tension in the pulling rope 6-3-6 also changes from vertically downward in the hanging section to a horizontal tension in the horizontal section. Moreover, the two oppositely arranged deflection rings 6-1-2-3 directly set the horizontal tensions in the horizontal sections of the two pulling ropes to be parallel and opposite in direction;

[0051] The inner wall of the funnel cavity 6-1-2 is closely attached to the outer wall of the support sleeve 6-6. At the interface between the inner wall of the funnel cavity 6-1-2 and the inner wall of the vertical cavity 6-1-1, a horizontal annular step is provided to form a reduced-diameter transition connection. The lower surface of the step is placed on the support sleeve 6-6 to transfer the load of the force-transmitting hourglass bucket 6-1 and all components above it to the support sleeve 6-6. The distance between the upper surface of the step and the bottom of the second threaded pipe 5 is set to be greater than the maximum compression amount of the spring to ensure the required height dimension for elevation reset and that the lower surface of the hand-operated nut 2-1 can contact the top surface of the vertical rod after the reset operation, so as to directly transfer the load received by the jack to the top surface of the vertical rod, thus ensuring that the shock-absorbing device can effectively withdraw from operation and that the elevation can be effectively reset. The inner and outer walls of the funnel cavity 6-1-2 are fixedly connected at the bottom by four inverted T-beam webs 6-1-2-4 arranged circumferentially. The bottom of the force-transmitting hourglass bucket 6-1 is hollowed out. This design makes the force transmission of the sand body to this beam more reasonable, realizing that the web 6-1-2-4 is in tension and the flange plate 6-1-2-5 is in compression. The inverted T-beam web 6-1-2-4 has a trapezoidal cross-section that is narrower at the top and wider at the bottom, facilitating smooth sand leakage. The flange plate 6-1-2-5 extends a certain distance out of the inner wall of the funnel cavity 6-1-2 and is used to be clamped in the vertical groove (C) at the top of the support sleeve 6-6 to prevent the force-transmitting hourglass bucket 6-1 from rotating.

[0052] See Figure 5 , the flange plate 6-1-2-5 extends a certain distance out of the inner wall of the funnel cavity 6-1-2 as Figure 5 shown. In the hourglass-shaped unloading assembly 6, the sand leakage column plate 6-2 includes a threaded column 6-2-1, an annular steel plate 6-2-3, a rubber sheet 6-2-2, an extension pipe 6-2-4, and a threaded union ring 6-2-5;

[0053] There are four threaded columns 6-2-1 in total, arranged circumferentially at intervals of 90° and fixed to the annular steel plate 6-2-3, and inserted into the sand body through the hollowed-out part at the bottom of the force-transmitting hourglass bucket 6-1;

[0054] The inner diameter of the annular steel plate 6-2-3 is slightly larger than that of the support sleeve 6-6 and can pass through the support sleeve 6-6. An annular rubber groove is provided on its upper surface for placing the rubber sheet 6-2-2;

[0055] The rubber sheet 6-2-2 is provided with bolt holes 6-2-2-1 at the corresponding positions of the columns 6-2-1 for passing through the columns 6-2-1. The annular steel plate 6-2-3 and the rubber sheet 6-2-2 are restricted and pressed by the unloading chassis 6-3 to seal the force transmission and prevent sand leakage from the bottom of the hourglass bucket 6-1 before unloading;

[0056] The extension pipe 6-2-4 is located below the annular steel plate 6-2-3 and fixed to it. Its inner diameter is slightly larger than that of the support sleeve 6-6 and can pass through the support sleeve 6-6. A circumferentially widened flange 6-2-4-1 is also provided on the outer periphery of its bottom;

[0057] The threaded union ring 6-2-5 includes a horizontal ring 6-2-5-1 and a vertical ring 6-2-5-2, which are integral and form an inverted L-shaped cross-section, and threads are provided on the inner side of the bottom of the vertical ring 6-2-5-2. The inner diameter of the horizontal ring 6-2-5-1 is slightly larger than the outer diameter of the extension pipe 6-2-4, and the inner diameter of the vertical ring 6-2-5-2 is slightly larger than the outer diameter of the widened flange 6-2-4-1 of the extension pipe 6-2-4. The threaded union ring 6-2-5 is pre-mounted outside the extension pipe 6-2-4 and above its annular widened flange 6-2-4-1 during the processing of the sand leakage upright disk 6-2;

[0058] In the hourglass unloading assembly 6, the unloading chassis 6-3 includes a chassis 6-3-2, a buckle 26-3-4, a pull ring 6-3-5 and a pull rope 6-3-6;

[0059] A sealing ring 6-3-1 is arranged around the circumference of the chassis 6-3-2 to form a circular ring groove. On the upper surface of the chassis 6-3-2 located in the circular ring groove, a semi-circular cross-section annular bearing boss 6-3-3 is provided to support the sand leakage upright disk 6-2. At the same time, when the unloading chassis 6-3 rotates around its center to complete the clamping and pressing or the opening and separation of the clamping connection between the unloading chassis 6-3 and the bottom of the force-transmitting hourglass barrel 6-1 through the buckle 2(6-3-4) and the buckle 1(6-1-2-1) at the bottom of the force-transmitting hourglass barrel 6-1, the frictional resistance of the rotational sliding between the unloading chassis 6-3 and the sand leakage upright disk 6-2 is reduced;

[0060] The buckle 2(6-3-4) is the same as the buckle 1(6-1-2-1) at the bottom of the force-transmitting hourglass barrel 6-1 and is centrosymmetric with the buckle 1(6-1-2-1), so that it can be clamped and pressed by rotation or opened by rotation; the buckle 2(6-3-4) is fixed on the upper surface of the sealing ring 6-3-1, and four are arranged at intervals of 90°, corresponding to the positions of the buckles 1(6-1-2-1) at the bottom of the force-transmitting hourglass barrel 6-1;

[0061] Two pull rings 6-3-5 are arranged oppositely on two buckles 2(6-3-4) and are fixed on the sides with opposite opening directions of the buckles 2(6-3-4);

[0062] The upper end of the pull rope 6-3-6 is connected to the pull ring 6-3-5, and the other end passes through the deflection ring 6-1-2-3 at the bottom of the force-transmitting hourglass barrel 6-1 and then hangs down naturally. That is, the complete pull rope 6-3-6 is divided into a horizontal section and a hanging section by the deflection ring 6-1-2-3 with the deflection ring 6-1-2-3 as the boundary. The hanging section goes from the near-ground end up to the deflection ring 6-1-2-3, and the horizontal section goes from the deflection ring 6-1-2-3 to the pull ring 6-3-5. The horizontal section is located at the top of the frame. Since the hanging section and the horizontal section of the pull rope 6-3-6 are still a complete pull rope, a downward pulling force can be applied to the bottom end of the hanging section near the ground to generate a horizontal pulling force on the horizontal section located at the top of the frame, so as to control the horizontal rotation of the unloading chassis 6-3 at a high altitude by pulling downward at the ground and open the snap connection between the unloading chassis 6-3 and the bottom of the force-transmitting hourglass barrel 6-1 to achieve separation, thus completing the sand leakage unloading and restoring the elevation.

[0063] The unloading chassis 6-3 is pre-installed and sleeved outside the extension pipe 6-2-4 during the processing of the sand leakage upright column disc 6-2, and is located below the annular steel disc 6-2-3 fixed at the upper end of the extension pipe 6-2-4. At the same time, it is located above the threaded union ring 6-2-5 pre-installed and sleeved on the annular widened flange 6-2-4-1 on the outer circumference and bottom of the extension pipe 6-2-4;

[0064] In the hourglass-shaped unloading assembly 6, the support sleeve 6-6 is a thick-walled support sleeve 6-6, the inner diameter of which is slightly larger than the outer diameter of the upright rod. The support sleeve 6-6 passes through the top of the upright rod and places the bottom on the top surface of the pin connecting the topmost disc buckle of the upright rod and the cross bar, so as to transfer the load to the upright rod; the force-transmitting hourglass barrel 6-1 passes through the top of the upright rod and its vertically variable-diameter stepped inner wall is sleeved on the top of the above-mentioned in-place thick-walled support sleeve 6-6. The inner surfaces of the large and small diameters of the variable-diameter inner wall are respectively sleeved on the outer surfaces of the thick-walled support sleeve 6-6 and the upright rod. The lower surface of the annular horizontal step at the variable-diameter part contacts the top surface of the thick-walled support sleeve 6-6, and transfers the load received by the hourglass barrel 6-1 to the support sleeve 6-6;

[0065] Vertical grooves (C) are arranged at intervals of 90° on the outer wall of the top of the support sleeve 6-6 for clamping the part of the inverted T-beam flange 6-1-2-5 at the bottom of the force-transmitting hourglass barrel 6-1 that radially extends out of the inner wall of the funnel cavity 6-1-2 to limit the rotation of the force-transmitting hourglass barrel 6-1; an external convex thread (D) is arranged near the bottom of the support sleeve 6-6 for connecting the sand bucket 6-5 and the booster spring 6-4; a frustum 6-6-1 is arranged at the bottommost end of the support sleeve 6-6, and the frustum 6-6-1 is placed on the disc buckle pin at the topmost part of the upright rod to form a support; screw holes 6-6-2 are arranged oppositely between the external convex thread (D) and the frustum 6-6-1 on the support sleeve 6-6, and can pass through the jackscrew 6-6-3 to be tightened against the upright rod to prevent the support sleeve 6-6 from rotating;

[0066] In the hourglass unloading assembly 6, the assisting spring 6-4 includes a spring 6-4-2, an upper connecting ring 6-4-1, and a lower connecting ring 6-4-3. The two ends of the spring 6-4-2 are fixedly welded to the upper and lower connecting rings 6-4-1 and 6-4-3. The outer wall of the upper connecting ring 6-4-1 is provided with threads and is connected in a threaded and movable manner with a threaded connection ring 6-2-5 at the bottom of the sand leakage column plate 6-2. The inner surface of the bottom of the lower connecting ring 6-4-3 is provided with threads and is connected in a matching manner with an externally protruding thread (D) near the bottom of the support sleeve 6-6.

[0067] When the snap 1 (6-1-2-1) and the snap 2 (6-3-4) are tightly fastened to each other, the assisting spring 6-4 is in a tensioned state. Therefore, when the snap 1 (6-1-2-1) and the snap 2 (6-3-4) are controlled to rotate and separate from each other through the pull rope 6-3-6, the unloading chassis 6-3 will fall under the load transmitted by the sand. At the same time, the tensioned assisting spring 6-4 will also naturally and automatically pull the unloading chassis 6-3, the sand leakage column plate 6-2, and the threaded column 6-2-1 inserted into the sand body downward. Especially during the falling process of the sand leakage column plate 6-2, the threaded column 6-2-1 inserted into the sand body is pulled out and dropped together with the annular steel plate 6-2-3 by the assisting spring 6-4, disturbing the sand body and helping the sand to leak out of the force-transmitting hourglass barrel 6-1.

[0068] In the hourglass unloading assembly 6, the sand bucket 6-5 is divided into an upper bucket body 6-5-1 and a lower bucket body 6-5-2. The upper bucket body 6-5-1 is a round tube with a larger diameter, and its bottom is provided with screw holes 6-5-1-1 radially at an interval of 90°. The lower bucket body 6-5-2 is a round tube with a smaller diameter, and its top is provided with bolt holes 6-5-2-1-1 radially at an interval of 90°. Its bottom end is provided with a circular sealing plate, and a circular hole is opened in the center of the sealing plate. Threads are provided on the hole wall and are connected in a matching manner with the externally protruding thread (D) at the lower part of the support sleeve 6-6. The outer diameter of the lower bucket body 6-5-2 is slightly smaller than the inner diameter of the upper bucket body 6-5-1. The lower bucket body 6-5-2 is sleeved into the upper bucket body 6-5-1, the bolt holes are aligned, and the two are connected by bolts 6-5-3. The inner diameters of the upper bucket body 6-5-1 and the lower bucket body 6-5-2 in the sand bucket 6-5 are both larger than the outer diameter of the unloading chassis 6-3 in the hourglass unloading assembly 6. Thus, it is ensured that when the unloading chassis 6-3 is controlled by the pull rope to rotate and disconnect the snap connection with the bottom of the force-transmitting hourglass barrel 6-1 and under the assisting action of the assisting spring 6-4, when the unloading chassis 6-3, the sand leakage column plate 6-2, and the threaded column 6-2-1 inserted into the sand body fall downward, all the sand (A) in the force-transmitting hourglass barrel 6-1 can fall into the lower sand bucket 6-5 with a larger diameter, and will not directly scatter from a high place at the top of the frame to the ground and affect the eye health of the personnel operating the pull rope 6-3-6 at the ground.

[0069] This device reduces the vertical kinetic energy transmitted by concrete pouring through the damping spring 3, achieving a damping effect, reducing potential safety hazards caused by the direct impact of vertical dynamic loads on the formwork support, and improving the safety and reliability of concrete construction for high and large formwork supports.

[0070] When multiple vertical damping devices are used, the single-point large impact load within the range where this device is used is borne by multiple vertical damping devices within this range, avoiding excessive local impact pressure on a single vertical rod at the corresponding position of the formwork support during concrete pouring, which may cause local instability and lead to the risk of overall collapse.

[0071] The adjustment of the preset compression amount enables this device to provide a relatively accurate spring damping effect under different slab thickness loads, enhancing the applicability of this device.

[0072] According to the principle of the hourglass, the bearing effect and buffering effect of the sand body are cleverly utilized. It can bear and simultaneously achieve the damping of dynamic loads. Also, due to the granularity of the sand grains, it can slowly leak, so that after the concrete pouring is completed, the spring load is slowly removed and transferred to the vertical rod, and at the same time, the elevation returns to the original position.

[0073] By using the pull rope 6 - 3 - 6 and the direction-changing ring 6 - 1 - 2 - 3, the direction of the force applied to the buckle 2(6 - 3 - 4) is cleverly changed. So that the operator can horizontally pull the buckle 2(6 - 3 - 4) by vertically pulling the pull rope 6 - 3 - 6 only at the bottom of the formwork support. At the same time, the two pairs of buckled buckles are arranged at the positions on the circumference at both ends of the diameter of the unloading chassis 6 - 3, making the initial horizontal pulling force arm the largest. It can rotate horizontally around the center of the unloading chassis 6 - 3 to separate the connected buckles, thus realizing the slow dropping of the sand body into the sand bucket 6 - 5 and the elevation returning to the original position.

[0074] Embodiment 2

[0075] The operation of the hourglass - type vertical damping device for high and large formwork supports of the present invention is carried out in two steps according to different working conditions:

[0076] I. Before concrete pouring

[0077] Before pouring concrete, install the hourglass - type vertical damping device for high and large formwork supports. The specific installation steps are as follows:

[0078] 1. Slide the support sleeve 6 - 6 onto the top of the vertical rod and place it on the socket disc pin of the disk - type fastener. Screw in the bolt 6 - 6 - 3 to tightly fix the support sleeve 6 - 6 to the top of the vertical rod. At this time, the support sleeve 6 - 6 cannot rotate around the socket disc pin.

[0079] 2. Slide the lower barrel 6 - 5 - 2 of the sand bucket 6 - 5 over the support sleeve 6 - 6, and screw the lower barrel 6 - 5 - 2 to threadedly connect it to the lower part of the support sleeve 6 - 6 until it reaches the bottom of the thread of the support sleeve 6 - 6;

[0080] 3. Insert the upper barrel body 6-5-1 of the sand-filled bucket 6-5, and temporarily do not connect it to the lower barrel body 6-5-2 with the screw 6-5-3. Stack the upper and lower barrel bodies so that their top surfaces are at the same elevation.

[0081] 4. Insert the assist spring 6-4 into the support sleeve 6-6, and turn the lower connection ring 6-4-3 of the assist spring 6-4 to engage with the remaining threads at the lower part of the support sleeve 6-6.

[0082] 5. When manufacturing the sand leakage vertical column plate 6-2, at the lower end of the extension pipe 6-2-4 that has been welded and fixed to the annular steel plate 6-2-3 above, sequentially insert the unloading chassis 6-3 - threaded union ring 6-2-5 onto the outside of the extension pipe 6-2-4 from bottom to top, and then weld and fix the annular widened flange 6-2-4-1 at the bottom of the extension pipe 6-2-4 to make them an integral body.

[0083] 6. Insert the "sand leakage vertical column plate 6-2 and unloading chassis 6-3", which is actually an integral body, into the support sleeve 6-6.

[0084] Insert the force-transmitting sand funnel bucket 6-1 from the top of the vertical rod. Align the part of the flange 6-1-2-5 that radially extends out of the inner wall of the funnel cavity 6-1-2 with the vertical groove (C) at the top of the support sleeve 6-6 and install it. Make the lower surface of the annular horizontal step at the variable diameter connection of the inner wall of the force-transmitting sand funnel bucket 6-1 rest on the upper surface of the support sleeve 6-6, and the hollow part at the bottom of the force-transmitting sand funnel bucket 6-1 is sleeved outside the vertical column 6-2-1 of the sand leakage vertical column plate 6-2. At this time, the force-transmitting sand funnel bucket 6-1 and the buckle 1 (6-1-2-1) provided at its bottom cannot rotate on the top of the support sleeve 6-6. The reason for not being able to rotate is as described above: "The flange 6-1-2-5 extends a certain distance out of the inner wall of the funnel cavity 6-1-2 and is used to be stuck in the vertical groove (C) at the top of the support sleeve 6-6 to prevent the force-transmitting sand funnel bucket 6-1 from rotating along with it."

[0085] 7. Hold the assist spring 6-4 steady by hand, and turn the threaded union ring 6-2-5 of the sand leakage vertical column plate 6-2 to connect it to the upper connection ring 6-4-1 of the assist spring 6-4.

[0086] 8. Align the vertical positions of the buckle 1 (6-1-2-1) and the buckle 2 (6-3-4), lift the unloading chassis 6-3 forcefully, and rotate the unloading chassis 6-3 to make the buckle 2 (6-3-4) rotate, thereby completing the pressing and fastening with the non-rotating snap buckle 1 (6-1-2-1), that is, completing the pressing and fastening of the "sand leakage vertical column plate 6-2 and unloading chassis 6-3", which is actually an integral body, with the force-transmitting sand funnel bucket 6-1.

[0087] 9. Pull the upper barrel body 6-5-1 of the sand bucket 6-5 upward so that the lower threaded hole 6-5-1-1 aligns with the upper bolt hole 6-5-2-1-1 of the lower barrel body 6-5-2, and connect them with bolts 6-5-3;

[0088] 10. Fix the pulling rope 6-3-6 on the pulling ring 6-3-5, and make the pulling rope 6-3-6 pass through the deflecting ring 6-1-2-3, and the rest naturally hangs down to the ground near the bottom of the frame;

[0089] 11. Fill the force-transferring hourglass bucket 6-1 with sand;

[0090] 12. Slide the second threaded pipe 5 onto the vertical pole from above, and at this time its bottom surface contacts the sand;

[0091] 13. Insert an annular rubber strip 6-1-1-2 into the wedge-shaped groove on the lower surface of the pressing ring 6-1-1-1, slide the whole assembly onto the top of the vertical pole, and screw the pressing ring 6-1-1-1 onto the top of the force-transferring hourglass bucket 6-1 to make them threadedly connected, thereby pressing the tapered section 5-2 of the height-adjustable spring support and sealing the sand;

[0092] 14. Use screws to connect the first threaded pipe 4, the damping spring 3, and the hand-operated support pipe 2 into a whole, and slide it onto the vertical pole from above;

[0093] 15. Turn the first threaded pipe 4 to drive all the devices above it to move downward, and at the same time observe the viewing window opened on the hand-operated support pipe 2 until it is observed through the viewing window that the bottom surface of the hand-operated nut 2-1 contacts the top of the vertical pole;

[0094] 16. Screw the U-shaped support 1 into the hand-operated support pipe 2 and adjust it to the designed elevation, this is state W;

[0095] 17. Calculate the total load on a single vertical pole according to the thickness of the concrete floor slab, convert it into the spring deformation amount according to the spring elastic coefficient, and then obtain the preset compression amount considering an appropriate amplification factor. Turn the first threaded pipe 4 to make all the components above it move upward and observe the scale value on the first threaded pipe 4 and adjust it to the preset compression amount, this is state X;

[0096] 18. Start pouring the floor slab concrete.

[0097] II. After concrete pouring

[0098] Since the preset compression amount of the damping spring 3 is calculated considering an amplification factor, after the concrete pouring is completed, the actual compression amount of the damping spring 3 is less than the preset compression amount. At this time, the formwork elevation is higher than the designed elevation, the bottom surface of the hand-operated nut 2-1 still does not contact the top of the vertical pole, and the U-shaped support 1 is not fully reset, this is state Y.

[0099] The operator pulls the near-ground end of the pull rope 6-3-6 downward at the bottom of the frame, which can make the unloading chassis 6-3 at the high position at the top of the frame and the buckle 26-3-4 thereon rotate horizontally around its center. The force-transmitting hourglass bucket 6-1 and the buckle 16-1-2-1 provided at the bottom thereof extend a certain distance from the inner wall of the funnel cavity 6-1-2 through the flange 6-1-2-5 of the inverted T-beam at the bottom of the force-transmitting hourglass bucket 6-1 and are clamped in the vertical groove (C) at the top of the support sleeve 6-6, so they will not rotate. As a result, the buckle connection between the unloading chassis 6-3 and the force-transmitting hourglass bucket 6-1 is disconnected. Subsequently, the sand body in the force-transmitting hourglass bucket 6-1 automatically falls into the sand bucket 6-5 due to gravity, the pulling force of the boosting spring 6-4, and the guiding of the upright posts 6-2-1 on the sand leakage upright post plate 6-2. Thus, the second threaded pipe 5 and all the components above it all fall, making the lower surface of the hand-operated nut 2-1 contact the top of the upright post, and the damping spring 3 returns to the relaxed state, realizing the elevation return. This is state Z.

[0100] The principle of the present invention is as follows:

[0101] For the installation and use of the hourglass-type vertical damping device for high and large formwork supports, the prerequisite is that the distance from the topmost disc to the top of the upright post is 450 mm ± 10 mm, and the 10 mm error can be eliminated by adjusting the overlapping section length of the first threaded pipe 4 and the second threaded pipe 5. For safety, the initial elevation of the top of the upright post can be adjusted through the adjustable base at the bottom of the upright post, so that the top of the upright post is within 100 mm of the designed elevation. At this time, the length of the screw rod inserted into the upright post by the U-shaped support 1 screw rod is adjusted to make its top reach the designed elevation. At this time, in any state of using this device, the cantilever length of the adjustable support of the support frame extending out of the topmost horizontal rod does not exceed 650 mm, meeting the specification requirements.

[0102] When the device is installed, after the lower surface of the hand-operated nut 2-1 contacts the upright post, the exposed length of the screw rod is adjusted through the hand-operated nut 2-1, so that the top of the U-shaped support plate reaches the designed elevation. Then, the first threaded pipe 4 is rotated to drive the integral upward movement of the upper part thereof, and the preset compression amount of the damping spring 3 can be adjusted. The preset compression amount can be calculated according to different plate thicknesses and considering an appropriate magnification factor. The accurate positioning of the preloading position is realized through the scale groove (B) on the side wall of the first threaded pipe 4. At this time, the top support plate of the U-shaped support 1 is higher than the designed elevation, and the excess part is the preset compression amount of the damping spring 3. At this time, when pouring concrete, the vertical kinetic energy can be reduced through the elastic action of the spring.

[0103] The calculation process of the preset compression amount of the spring is as follows:

[0104] The load g1 acting on a single vertical rod of the support frame includes the self-weights of components such as formwork and small joists; the load g2 acting on a single vertical rod of the support frame includes the self-weights of steel bars, concrete, steel components, and components such as in-situ concrete; the variable load q1 on a single vertical rod of the support frame includes the loads of construction workers, construction equipment, and the stacking load of concrete materials exceeding the thickness of the poured component acting on the formwork surface at the top of the support frame structure. Considering the dynamic amplification factor of 1.2, the total load G borne by a single vertical rod is;

[0105] G = 1.2×[1.3×(g1 + g2) + 1.5×q1]

[0106] According to the spring elastic coefficient k, considering the spring elastic redundancy amplification factor of 1.2, the preset compression amount L of the spring can be obtained as follows:

[0107] L = 1.2×G / k

[0108] To ensure that the lower surface of the hand-operated nut 2-1 does not come into impact contact with the top of the vertical rod during the vibration damping process of the device, the calculation of the preset compression amount of the vibration damping spring 3 takes into account the double amplification factors of dynamics and elastic redundancy. This means that during and after the concrete pouring, the actual compression amount of the vibration damping spring 3 is less than the pre-compression amount, that is, the lower surface of the hand-operated nut 2-1 is always higher than the top of the vertical rod, the formwork elevation is always greater than the design elevation, and the U-shaped support 1 does not fully return to its original position after the concrete pouring. The force-transmitting hourglass bucket 6-1 provided in this device can achieve elevation reset. The specific principle is as follows: The force-transmitting hourglass bucket 6-1 uses a pull rope 6-3-6 to control the opening of its lower unloading chassis 6-3. When a pulling force is applied to the pull rope 6-3-6, the buckle 1 (6-1-2-1) of the force-transmitting hourglass bucket 6-1 is separated from the buckle 2 (6-3-4) on the unloading chassis 6-3, and the clamping connection is disconnected. Due to the pre-tension of the lower assisting spring 6-4, it is more convenient for the unloading chassis 6-3 and the sand leakage column disk 6-2 to fall. The sand leakage column disk 6-2 guides the sand to leak down. At the same time, the second threaded pipe 5 and the components above it supported by the sand also fall until the lower surface of the hand-operated nut 2-1 falls to the top of the vertical rod to form a support, realizing the reset of the design elevation of the top plate of the U-shaped support 1.

[0109] By using the pull rope 6-3-6, the operator does not need to climb the support frame multiple times. By only pulling the pull rope 6-3-6 at the bottom of the frame, the unloading chassis 6-3 and the buckle 2 (6-3-4) on it can be rotated horizontally around its center. The force-transmitting hourglass bucket 6-1 and the buckle 1 (6-1-2-1) provided at the bottom thereof are clamped in the vertical groove (C) at the top of the support sleeve 6-6 after extending a certain distance from the inner wall of the funnel cavity 6-1-2 through the flange 6-1-2-5 of the inverted T-beam at the bottom of the force-transmitting hourglass bucket 6-1, so it will not rotate. Therefore, the buckle connection between the unloading chassis 6-3 and the force-transmitting hourglass bucket 6-1 is disconnected. Subsequently, the sand body in the force-transmitting hourglass bucket 6-1 automatically falls into the sand receiving bucket 6-5 due to gravity, the pulling force of the assisting spring 6-4, and the guiding of the upright posts 6-2-1 on the sand leakage upright post plate 6-2, so as to realize the slow leakage of the sand body into the sand receiving bucket 6-5 and the elevation return to the original position.

[0110] The above has introduced in detail a sand-hourglass type vertical damping device for high formwork support provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A tall formwork hourglass type vertical vibration reduction device, characterized in that: It comprises a U-shaped support (1), a hand-operated support tube (2), a vibration-damping spring (3), a first threaded tube (4), a second threaded tube (5) and an hourglass-type unloading assembly (6); The screw rod part of the U-shaped support (1) is threadedly connected to the hand-operated support tube (2), and the hand-operated support tube (2) is sleeved on the top of the vertical pole; the damping spring (3) is located between the hand-operated support tube (2) and the first threaded tube (4); The first threaded tube (4) has an external thread on its outer wall, and the second threaded tube (5) comprises a vertical section (5-1) and a tapered section (5-2); the second threaded tube (5) has a thread on its inner wall that is matched with the external thread of the first threaded tube (4); the first threaded tube (4) and the second threaded tube (5) are matched with each other in thread connection to form a superimposed section as a spring support; The hourglass-type unloading assembly (6) comprises a force-transmitting hourglass bucket (6-1), an unloading device, a sand bucket (6-5) and a supporting sleeve (6-6); the force-transmitting hourglass bucket (6-1) retains sand inside, and its inner wall step is placed on the supporting sleeve (6-6) to form a support, and the bottom is hollowed out; the unloading device is arranged between the force-transmitting hourglass bucket (6-1) and the sand bucket (6-5); by operating the unloading device, the sand inside the force-transmitting hourglass bucket (6-1) can enter the sand bucket (6-5); The bottom surface of the conical section (5-2) is a large annular cross section, and its radial ring width is slightly smaller than the radial ring width of the upper part of the force-transmitting hourglass barrel (6-1) in the hourglass-type unloading assembly (6), and the conical section (5-2) is inserted into the force-transmitting hourglass barrel (6-1); the force-transmitting hourglass barrel (6-1) in the hourglass-type unloading assembly (6) comprises a vertical cavity (6-1-1) and a funnel cavity (6-1-2); a thread is provided on the inner side of the top of the outer wall of the vertical cavity (6-1-1), and a pressure ring (6-1-1-1) and an annular rubber strip (6-1-1-2) are provided; The outer vertical surface of the pressure ring (6-1-1-1) is provided with a matching thread which is threadedly connected with the inner wall of the vertical cavity (6-1-1); a wedge-shaped groove is provided on the lower surface for fixing the annular rubber strip (6-1-1-2); the pressure ring (6-1-1-1) is twisted to compress the annular rubber strip (6-1-1-2), thereby achieving a seal between the annular rubber strip (6-1-1-2), the pressure ring (6-1-1-1), the spring support conical section (5-2) and the outer wall of the vertical cavity (6-1-1), thereby preventing the sand (A) from leaking out when the sand body is under load.

2. The hourglass-type vertical vibration reduction device for a tall formwork frame according to claim 1 is characterized in that: The outer wall of the funnel cavity (6-1-2) is designed as a vertical oblique fold line, and is welded to form a diameter-reducing connection after forming an annular horizontal step, and the inner wall of the funnel cavity (6-1-2) with an enlarged diameter is sleeved on the top of the supporting sleeve (6-6).

3. The hourglass-type vertical vibration reduction device for a tall formwork frame according to claim 1 is characterized in that: The unloading device comprises a sand leaking column plate (6-2), an unloading chassis (6-3), and an assisting spring (6-4); the unloading chassis (6-3) is located at the bottom of the sand leaking column plate (6-2) and is connected to the force transmission hourglass bucket (6-1) through a side buckle; the sand leaking column plate (6-2) is arranged at the bottom of the force transmission hourglass bucket (6-1) and is threadedly connected to the assisting spring (6-4); the assisting spring (6-4) provides a pre-tensioning force for the falling of the sand leaking column plate (6-2), and its lower part is threadedly connected to a supporting sleeve (6-6); the supporting sleeve (6-6) is placed on the latch of the highest disc of the vertical pole.

4. The hourglass-type vertical vibration reduction device for a tall formwork frame according to claim 1 is characterized in that: The hand-operated support tube (2) comprises a hand-operated nut (2-1) and a support tube (2-2); the long section of the support tube (2-2) is welded and fixed to the lower surface of the hand-operated nut (2-1) and is clamped outside the vertical pole; the short section of the support tube (2-2) clamps the upper connecting ring (3-1) of the damping spring (3); and the side walls of the short section of the support tube (2-2) are oppositely provided with through holes (2-2-2) for fixing with the upper connecting ring (3-1) by screws; the upper part of the hand-operated support tube (2) is also provided with a viewing window (2-2-1) for observing the position of the internal vertical pole.

5. The hourglass-type vertical vibration reduction device for a tall formwork frame according to claim 1 is characterized in that: The damping spring (3) comprises an upper connecting ring (3-1), a lower connecting ring (3-3) and a spring (3-2); the upper connecting ring (3-1) and the lower connecting ring (3-3) are respectively fixed to the upper and lower ends of the spring (3-2); the side walls of the upper connecting ring (3-1) and the lower connecting ring (3-3) are both provided with screw holes in opposite radial directions, which are respectively used to be fixed to the hand-operated support tube (2) and the first threaded tube (4); The side walls of the upper short section (4-1) of the first threaded tube (4) are provided with through holes (4-1-1) opposite to the lower connecting ring (3-3) of the clamping sleeve damping spring (3), and are fixed thereto by means of screws (4-3); the outer wall of the lower long section (4-2) of the first threaded tube (4) is provided with threads for connection with the second threaded tube (5); and the long section of the first threaded tube (4) is also provided with a graduated groove (B) in the vertical direction.

6. The hourglass-type vertical vibration reduction device for a tall formwork frame according to claim 1 is characterized in that: The unloading chassis (6-3) comprises a chassis (6-3-2), a buckle 2 (6-3-4), a pull ring (6-3-5) and a pull rope (6-3-6); an edge sealing ring (6-3-1) is arranged around the chassis (6-3-2) to form an annular groove, and a semicircular cross-section annular load-bearing boss (6-3-3) is arranged on the upper surface of the chassis (6-3-2) in the annular groove to support the sand leakage column plate (6-2); The buckle 2 (6-3-4) is identical to the buckle 1 (6-1-2-1) at the bottom of the force-transmitting hourglass bucket (6-1), and is centrally symmetrical with the buckle 1 (6-1-2-1). The buckle 2 (6-3-4) is fixed to the upper surface of the edge-sealing ring (6-3-1) and corresponds to the position of the buckle 1 (6-1-2-1) at the bottom of the force-transmitting hourglass bucket (6-1). The outer side of the outer wall of the funnel cavity (6-1-2) is provided with a buckle 1 (6-1-2-1) at the bottom to connect with the unloading chassis (6-3). A groove is provided at the end of the buckle 1 (6-1-2-1), and two direction-changing rings (6-1-2-3) are provided opposite to each other at a distance from the buckle 1 (6-1-2-1) and fixed on the base (6-1-2-2).

7. The hourglass-type vertical vibration reduction device for a tall formwork frame according to claim 1 is characterized in that: The upper end of the pull rope (6-3-6) is connected to the pull ring (6-3-5), and the other end passes through the direction-changing ring (6-1-2-3) at the bottom of the force-transmitting hourglass bucket (6-1) and then hangs down naturally.

8. The hourglass-type vertical vibration reduction device for a tall formwork frame according to claim 2 is characterized in that: Vertical grooves (C) are arranged at intervals on the outer wall at the top of the support sleeve (6-6); the inner and outer walls of the funnel cavity (6-1-2) are fixedly connected at the bottom through four circumferentially arranged inverted T-beam webs (6-1-2-4), and the bottom of the force-transmitting hourglass bucket (6-1) is hollowed out; an inverted T-beam flange plate (6-1-2-5) is arranged at the bottom of the hourglass bucket (6-1) and radially extends out of the inner wall of the funnel cavity (6-1-2); the part extending out of the inner wall of the funnel cavity (6-1-2) is engaged with the vertical groove (C) at the top of the support sleeve (6-6), thereby limiting the rotation of the force-transmitting hourglass bucket (6-1).

9. The hourglass-type vertical vibration reduction device for a tall formwork frame according to claim 8 is characterized in that: The support sleeve (6-6) is provided with an external convex thread (D) near the bottom, which is used to connect the sand bucket (6-5) and the booster spring (6-4); the bottom end of the support sleeve (6-6) is provided with a round platform (6-6-1), which is set on the disc-shaped round pin at the top of the vertical pole to form a support; The booster spring (6-4) comprises a spring (6-4-2), an upper connecting ring (6-4-1) and a lower connecting ring (6-4-3); two ends of the spring (6-4-2) are respectively welded and fixed to the upper connecting ring (6-4-1) and the lower connecting ring (6-4-3); a thread is provided on the outer wall of the upper connecting ring (6-4-1) to match the threaded flexible ring (6-2-5) at the bottom of the sand leakage column plate (6-2); a thread is provided on the inner surface of the bottom of the lower connecting ring (6-4-3) to match the outer convex thread (D) near the bottom of the support sleeve (6-6).

10. The hourglass-type vertical vibration reduction device for a tall formwork frame according to claim 1, characterized in that: The sand bucket (6-5) is divided into an upper barrel body (6-5-1) and a lower barrel body (6-5-2); the upper barrel body (6-5-1) has radially spaced screw holes (6-5-1-1) at the bottom, and the lower barrel body (6-5-2) has radially spaced bolt holes (6-5-2-1-1) at the top; the lower barrel body (6-5-2) is inserted into the upper barrel body (6-5-1), and the two are connected by bolts (6-5-3); a circular sealing plate is provided at the bottom end of the lower barrel body (6-5-2), a circular hole is provided in the center of the sealing plate, and a thread is provided on the hole wall to match and connect with the outer convex thread (D) at the lower part of the support sleeve (6-6).

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