Anti-falling device for overhead building in earthquake area

Abstract

The invention relates to the technical field of overhead building protection, in particular to an anti-falling device for an overhead building in an earthquake area. The buffer assembly is fixedly connected with the cover beam and located on the two sides of the water tank, one end of the pull rod is fixedly connected with the side wall of the water tank, and the other end of the pull rod extends to the end, away from the water tank, of the buffer assembly; the buffering assembly is provided with a first buffering end facing the water tank and a second buffering end back to the water tank, in the anti-falling device for the earthquake area of the overhead building, the crumple assembly is arranged to provide space for elastic reset of the rubber mat, and therefore when a small earthquake occurs, the rubber mat on the single side provides buffering for the water tank; when a large earthquake occurs, the rubber mats on the two sides are used for sharing the impact force of the water tank, that is, the rubber mats on the two sides are used for improving the buffering performance, and the influence of different earthquake grades on the water tank is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of overhead building protection, in particular to an anti-fall device for an overhead building in an earthquake zone. Background Art

[0002] For existing overhead structures such as water conveyance aqueducts, the anti-sliding stability of the upper structure mainly relies on the friction resistance between its own weight and the support to maintain its own stability. When the horizontal thrust is less than the friction resistance generated by its own weight, it can be considered that the anti-sliding stability of the structure itself meets the requirements. When designing a structure, the support type (ordinary support, seismic support, lead support, spherical damping support, etc.) suitable for the structure is usually selected according to site conditions, building level, frame column height and other conditions.

[0003] After the project is completed, if an earthquake occurs, the bearings will be damaged and the cost of replacing the damaged bearings will be high. Because the concrete structures of overhead buildings such as water aqueducts in water conservancy projects are large in size and heavy in weight, they do not meet the conditions for hoisting, and hoisting may cause deformation cracks in the structure that affect operational safety, limiting the possibility of replacing seismic bearings. If the intensity of earthquakes in the project area increases, the seismic stability of the original buildings will not meet the requirements of the specifications, and the safety of the buildings will be affected.

[0004] The current countermeasures are basically to set up buffer components in the water conveyance aqueduct to dissipate external forces and reduce the displacement of the water conveyance aqueduct. The current buffer components usually use rubber pads or dampers. The following problems are faced when using rubber pads. First, because the compression distance of the rubber pad is very limited, the rubber pad will not have the opportunity to recover elastically after being squeezed, resulting in the loss of the buffering effect of the deformed rubber pad; secondly, the buffering performance of the current rubber pad is usually set according to the level of large earthquakes in the area. This will result in the water tank being difficult to squeeze the rubber pad due to the displacement impact force generated by the earthquake when a small or medium-sized earthquake occurs, causing the water tank to be in a nearly fixed state, which in turn affects the safety of the water conveyance aqueduct. Summary of the invention

[0005] The object of the present invention is to provide an anti-fall device for an overhead building in an earthquake zone to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, an anti-fall device for earthquake zones of overhead buildings is provided, comprising a buffer assembly fixedly connected to a cap beam and located on both sides of a water tank, and a pull rod having one end fixedly connected to a side wall of the water tank and the other end extending to an end of the buffer assembly away from the water tank;

[0007] The buffer component has a first buffer end facing the water tank and a second buffer end facing away from the water tank, wherein the first buffer end is provided with a collapse component against the side wall of the water tank, and when the buffer component is squeezed to a preset buffer state, the collapse component provides elastic reset space for the squeezed buffer component by reducing its own length;

[0008] A spacing is provided between the end of the pull rod and the second buffer end of the buffer assembly;

[0009] When one of the buffer components is in the preset buffer state, the corresponding pull rod contacts the second buffer end of the other buffer component, so that when the water tank further moves in one direction, the buffer components on both sides provide buffering for the water tank.

[0010] As a further improvement of the technical solution, the buffer assembly includes a horizontally arranged crossbar, a plurality of equally spaced pressure rings, and a rubber pad arranged between two adjacent pressure rings; wherein:

[0011] The plurality of pressure rings are all slid between two limit blocks fixedly arranged on the outer ring of the crossbar;

[0012] The ends of the crossbars are fixedly connected to the side walls of the cap beam.

[0013] As a further improvement of the present technical solution, the preset buffering state is a state when the rubber pad cannot provide buffering.

[0014] As a further improvement of the technical solution, one end of the pull rod is bent downward to form a hook end, and a distance is set between the hook end and the pressure ring. When the rubber pad is elastically reset, the hook end contacts the pressure ring.

[0015] As a further improvement of the technical solution, the collapse assembly includes an inner ring connected to the side wall of the pressure ring, a support ring arranged on the inner ring of the inner ring, and a collapse part, wherein:

[0016] One end of the support ring away from the pressure ring protrudes out of the end of the inner ring and abuts against the side wall of the water tank;

[0017] The water tank applies thrust to the support ring and transmits it to the inner ring through the collapse part.

[0018] As a further improvement of the technical solution, the collapse portion is a plurality of stopper plates fixedly arranged on the inner ring of the inner ring, and the plurality of stopper plates are located on the moving path of the support ring; the spacing length between two adjacent stopper plates corresponds to the length required for elastic reset of the rubber pad;

[0019] The support ring is slidably connected to the inner ring.

[0020] As a further improvement of the technical solution, a partition groove is provided on the outer side of the stop plate to reduce the contact area with the inner ring.

[0021] As a further improvement of the technical solution, the support ring is provided with multiple sections, and the length between two adjacent sections corresponds to the length required for elastic reset of the rubber pad;

[0022] The collapse portion is a broken block arranged between two adjacent support rings, and the broken block is made of fragile material;

[0023] One end of the inner ring is bent toward the inner circle, and one end of the support ring is against the bent portion of the inner ring.

[0024] As a further improvement of the technical solution, a compensation component is arranged between the collapse component and the pressure ring, and the compensation component includes an outer ring fixedly arranged on the side wall of the pressure ring, the outer ring is slidably arranged on the outer ring of the inner ring, and a compensation spring is arranged between the end of the inner ring and the side wall of the pressure ring to elastically connect the two;

[0025] The outer ring of the inner ring is provided with a plurality of limit grooves, which are arranged along the length direction of the inner ring, and the outer ring of the outer ring is slidably penetrated by a plurality of limit rods, and a return spring is arranged between the top end of the limit rod and the outer ring of the outer ring to elastically connect the two;

[0026] One end of the limiting rod extending into the outer ring is located in the limiting groove, and a slope is arranged on the side of the limiting groove facing the pressure ring.

[0027] As a further improvement of the present technical solution, a convex ring is provided on one side of the pressure ring close to the hook end of the pull rod, and a slanted groove in a "U"-shaped structure is provided on the top of the convex ring. Both sides of the slanted groove expand outward to form a slope, and the hook end of the pull rod is in the slanted groove.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. In the anti-fall device for earthquake zones of overhead buildings, a collapse component is provided to provide space for the elastic reset of the rubber pad, so that when a small earthquake occurs, the rubber pad on one side can provide buffering for the water tank; when a large earthquake occurs, the rubber pads on both sides are used to share the impact force of the water tank, that is, the rubber pads on both sides are used to improve the buffering performance and reduce the impact of different earthquake levels on the water tank.

[0030] 2. In the earthquake zone anti-fall device for overhead buildings, during the reciprocating movement of the water tank, the compensation component is arranged so that the support ring can always be against the side wall of the water tank, thereby weakening the power of the reciprocating motion and reducing the amplitude of the reciprocating motion of the water tank.

[0031] 3. In the anti-fall device for earthquake zones of overhead buildings, the pull rod can not only pull the pressure ring to move when the water tank moves along the width direction, but also push the pressure ring to move when the water tank moves along the length direction, so that the rubber pad can buffer the movement of the water tank in multiple directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0033] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0034] Figure 3 It is a structural schematic diagram of the buffer assembly of the present invention;

[0035] Figure 4 For the present invention Figure 2 A schematic diagram of the structure at B;

[0036] Figure 5 It is a schematic diagram of the structure of the compensation component of the present invention;

[0037] Figure 6 It is a schematic structural diagram of the stopper sheet of the present invention;

[0038] Figure 7 It is a schematic diagram of the structure of the groove of the present invention;

[0039] Figure 8 It is a schematic diagram of the working state of the groove of the present invention;

[0040] Fig. 9 It is a schematic diagram of the cushioning of the rubber pad of the present invention;

[0041] Fig.10 For the present invention Figure 1 A schematic diagram of the enlarged structure of .

[0042] The meaning of each number in the figure is:

[0043] 100. Support rod; 101. Pull rod; 110. Buffer assembly; 111. Cross bar; 112. Limit block; 113. Pressure ring; 114. Rubber pad; 115. Convex ring; 116. Inclined groove; 120. Compensation assembly; 121. Outer ring; 122. Inner ring; 123. Compensation spring; 124. Limit groove; 125. Limit rod; 126. Return spring; 130. Collapse assembly; 131. Support ring; 132. Stop plate; 133. Partition groove; 134. Crushing block; 200. Cap beam; 201. Water tank. DETAILED DESCRIPTION

[0044] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0047] The present invention provides an anti-fall device for an overhead building in an earthquake zone, wherein the overhead building may be an overhead highway bridge or an overhead water conveyance aqueduct (such as Figure 1 Next, the technical solution of the present invention will be described in detail using a water conveyance aqueduct.

[0048] like Figure 2 As shown, the anti-fall device includes a buffer assembly 110 fixedly connected to the cap beam 200 and located on both sides of the water tank 201, and a pull rod 101 having one end fixedly connected to the side wall of the water tank 201 and the other end extending to the end of the buffer assembly 110 away from the water tank 201;

[0049] The ends of the buffer component 110 facing the water tank 201 and the ends facing away from the water tank 201 are both buffer ends; the two buffer ends are respectively the first buffer end and the second buffer end. For ease of understanding, in this embodiment, the end of the buffer component 110 facing the water tank 201 is set as the first buffer end, and the end of the buffer component 110 facing away from the water tank 201 is set as the second buffer end.

[0050] A collapse component 130 is provided at the first buffer end to abut against the side wall of the water tank 201. When the water tank 201 moves under the action of an earthquake and squeezes the first buffer end of one of the buffer components 110 to a preset buffer state, the collapse component 130 provides elastic reset space for the squeezed buffer component 110 by reducing its own length.

[0051] In addition, a spacing is provided between the end of the pull rod 101 and the second buffer end of the buffer assembly 110, and the length of the spacing corresponds to the moving distance required for the sink 201 to squeeze the buffer assembly 110 to a preset buffer state; in this way, when one of the buffer assemblies 110 is in the preset buffer state, the pull rod 101 contacts the second buffer end of the other buffer assembly 110, so that when the sink 201 moves further in one direction, the buffer assemblies 110 on both sides can provide buffering for the sink 201 that moves further in one direction.

[0052] In the above description, the preset buffering state refers to the maximum deformation state of the rubber pad 114 (to be described in detail below) (ie, the state when no buffering can be provided).

[0053] Figure 2 The embodiment in FIG. 1 shows the specific structure of the buffer assembly 110. As shown in the figure, the buffer assembly 110 includes a horizontally arranged crossbar 111, a plurality of equally spaced pressure rings 113, and a rubber pad 114 arranged between two adjacent pressure rings 113, wherein the plurality of pressure rings 113 slide between two stop blocks 112 fixedly arranged on the outer ring of the crossbar 111. The structure of the two stop blocks 112 is as shown in FIG. Figure 3 As shown, the left stopper 112 is located in the middle of the crossbar 111, and the right stopper 112 is located at the end of the crossbar 111 (i.e., the end close to the compensation component 120). In addition, the diameter of the stopper 112 needs to be smaller than the diameter of the pressure ring 113 to achieve contact between the external object and the pressure ring 113. In this way, both of the two pressure rings 113 located at the outermost can be pushed. For example, when the pressure ring 113 is pressed against the outermost part of the crossbar 111, the pressure ring 113 can be pushed. Figure 3 When the leftmost pressing ring 113 applies thrust, the rightmost pressing ring 113 is blocked by the right limit block 112, and the rubber pad 114 is deformed, which shortens the distance between the two adjacent pressing rings 113 to achieve the purpose of buffering. In other words, the pressing rings 113 at both ends can buffer, and the two outermost pressing rings 113 form the first buffer end and the second buffer end respectively.

[0054] The end of the cross bar 111 is fixedly connected to the side wall of the cap beam 200; the rubber pad 114 is preferably made of rubber.

[0055] like Figure 2 and Figure 3As shown, in the specific implementation, first, steel plates are respectively arranged on both sides of the cap beam 200 (i.e., the side walls in the width direction of the water tank 201), and the steel plates are fixed to the cap beam 200 by bolts. Then, the support rod 100 is fixedly arranged (bolted, welded, etc.) on the side wall of the steel plate, and the top end of the support rod 100 extends upward to the end of the cross bar 111 and is fixedly connected to the cross bar 111 (bolted, welded, etc.), thereby realizing the connection between the cross bar 111 and the cap beam 200.

[0056] Figure 4 The specific structure of the pull rod 101 is shown. As shown in the figure, one end of the pull rod 101 is bent downward to form a hook end, and a distance is set between the hook end and the pressure ring 113. The specific distance is expressed as follows: when the rubber pad 114 is elastically reset, the hook end contacts the pressure ring 113; in addition, in order to facilitate the contact between the hook end of the pull rod 101 and the pressure ring 113. In this embodiment, a convex ring 115 is fixedly provided on one side of the pressure ring 113, and the top end of the convex ring 115 protrudes upward into the moving path of the hook end of the pull rod 101. In this way, when the pull rod 101 moves, the hook end of the pull rod 101 can pull the pressure ring 113 to move through the convex ring 115.

[0057] Figure 6 The specific structure of the crushing assembly 130 is shown, and the crushing assembly 130 includes an inner ring 122 connected to the side wall of the pressure ring 113, a support ring 131 arranged in the inner circle of the inner ring 122, and a crushing portion, wherein one end of the support ring 131 away from the pressure ring 113 protrudes out of the end of the inner ring 122 and abuts against the side wall of the water tank 201. In this way, the thrust applied by the water tank 201 to the support ring 131 can be transmitted to the inner ring 122 through the crushing portion, and then transmitted to the buffer assembly 110 by the inner ring 122.

[0058] The structure of the collapse portion will be disclosed through two embodiments below.

[0059] Embodiment 1, as Figure 5 As shown, the collapse portion is a plurality of stopper pieces 132 fixedly arranged on the inner circle of the inner ring 122, and the plurality of stopper pieces 132 are arranged side by side in an equidistant manner on the moving path of the support ring 131. Moreover, the distance between two adjacent stopper pieces 132 corresponds to the length required for the elastic reset of the rubber pad 114. In addition, the support ring 131 is slidably connected to the inner ring 122.

[0060] The specific principle is that when the water tank 201 moves and pushes the support ring 131, the support ring 131 drives the inner ring 122 to move through the stopper 132, and the inner ring 122 pushes the pressure ring 113 on one side to move. At this time, the rubber pad 114 begins to deform to cushion the water tank 201. When the force of the displacement of the water tank 201 is too large, the rubber pad 114 is in the maximum deformation state, and the pressure ring 113 cannot continue to move. In this way, the stopper 132 (i.e. Figure 5When the thrust of the water tank 201 is greater than the connection strength between the stopper 132 and the inner ring 122, the stopper 132 will be disconnected from the inner ring 122. At the moment when the stopper 132 is disconnected from the inner ring 122, the rubber pad 114 is elastically reset.

[0061] In the specific implementation, the outer ring of the stopper 132 is first attached to the inner ring of the inner ring 122, and then the stopper 132 is fixed by welding. Here, the connection strength between the stopper 132 and the inner ring 122 can be controlled by adjusting the number of welding points or the material of the welding rod. Alternatively, Figure 6 As shown, by providing a partition groove 133 on the outer side of the stopper 132, the contact area between the stopper 132 and the inner ring 122 is reduced, thereby reducing the connection strength between the stopper 132 and the inner ring 122, thereby avoiding the phenomenon that the stopper 132 cannot be separated from the inner ring 122.

[0062] Embodiment 2, specifically as Figure 7 As shown, the support ring 131 is provided with multiple sections, and the length between two adjacent sections corresponds to the length required for elastic reset of the rubber pad 114; the collapse portion is a broken block 134 provided between two adjacent sections of the support ring 131, and the broken block 134 is preferably made of fragile materials, such as cement, stone, etc. In addition, one end of the inner ring 122 is bent toward the inner circle, and one end of the support ring 131 is against the bent portion of the inner ring 122.

[0063] The specific principle is that when the water tank 201 moves and pushes the support ring 131, the support ring 131 drives the inner ring 122 to move through the stopper 132, and the inner ring 122 pushes the pressure ring 113 on one side to move. At this time, the rubber pad 114 begins to deform to cushion the water tank 201. When the force of the displacement of the water tank 201 is too large, the rubber pad 114 is in the maximum deformation state, and the pressure ring 113 cannot continue to move. In this way, since the broken block 134 is too brittle to withstand a large impact force, Figure 8 As shown, the portion of the support ring 131 corresponding to the crushing block 134 begins to deform and crush rapidly, and at this time, the rubber pad 114 is elastically restored.

[0064] It should be noted that the thickness of the broken block 134 in the figure is only a schematic diagram, and the specific thickness needs to be flexibly adjusted according to the usage scenario.

[0065] Working principle:

[0066] Combination Fig. 9As shown, when a small earthquake occurs, the displacement distance of the water tank 201 is short. Assuming that the water tank 201 moves in the direction of the arrow due to the earthquake force, the water tank 201 pushes the support ring 131, and the support ring 131 pushes the pressure ring 113 through the collapsed part. The pressure ring 113 moves to squeeze the rubber pad 114. At this time, the deformation is realized by the rubber pad 114 on one side to buffer the water tank 201. Avoid the phenomenon that the water tank 201 is difficult to move.

[0067] When a large earthquake occurs, the displacement distance of the water tank 201 is relatively long. Since the rubber pad 114 on the left side is already in the maximum deformation state, the continued movement of the water tank 201 will cause the collapse part to collapse. At this time, the rubber pad 114 on the left side is elastically reset, and then the water tank 201 is buffered again. At the same time, the hook end of the right pull rod 101 pulls the convex ring 115 on the right side of the water tank 201 to move, and the convex ring 115 drives the pressure ring 113 to move and the rubber pad 114 on the right side also buffers the movement of the water tank 201. In this way, the rubber pads 114 on the left and right sides simultaneously bear the force of the unidirectional movement of the water tank 201, thereby achieving buffering of the water tank 201 during a large earthquake.

[0068] That is to say, the collapse assembly 130 is provided to provide space for the elastic reset of the rubber pad 114, so that when a small earthquake occurs, the rubber pad 114 on one side can provide cushioning for the water tank 201; when a large earthquake occurs, the rubber pads 114 on both sides are used to share the impact force of the water tank 201, that is, the rubber pads 114 on both sides are used to improve the cushioning performance and reduce the impact of different earthquake levels on the water tank 201.

[0069] Moreover, considering that earthquakes may cause the water tank 201 to frequently reciprocate, in order to achieve multiple buffering, such as Figure 3 and Figure 5 As shown, a compensation assembly 120 is arranged between the collapse assembly 130 and the pressure ring 113, and the compensation assembly 120 includes an outer ring 121 fixedly arranged on the side wall of the pressure ring 113, and the outer ring 121 is slidably arranged on the outer ring of the inner ring 122, and a compensation spring 123 is arranged between the end of the inner ring 122 and the side wall of the pressure ring 113 to elastically connect the two, and the outer ring of the inner ring 122 is provided with a plurality of limiting grooves 124, and the plurality of limiting grooves 124 are arranged along the length direction of the inner ring 122, and the outer ring of the outer ring 121 is slidably penetrated by a plurality of limiting rods 125, and a reset spring 126 is arranged between the top of the limiting rod 125 and the outer ring of the outer ring 121 to elastically connect the two. One end of the limiting rod 125 extending into the outer ring 121 is located in the limiting groove 124, and the limiting groove 124 is provided with an inclined surface on the side facing the pressure ring 113.

[0070] Working principle:

[0071] Under normal conditions, the end of the partition 133 abuts against the side wall of the water tank 201, and the compensation spring 123 cannot push the inner ring 122 to move. Fig. 9 As shown, when the water tank 201 is reset (in the opposite direction of the arrow) to the state before the earthquake, if the collapse assembly 130 collapses, a gap will be generated between the support ring 131 and the water tank 201. In this state, the compensation spring 123 rebounds and drives the inner ring 122 to move, and the inner ring 122 pushes the limit rod 125 out of the limit groove 124 through the inclined surface on one side of the limit groove 124, until the end of the support ring 131 is against the side wall of the water tank 201 again.

[0072] When the water tank 201 pushes the support ring 131, since the other side of the limiting groove 124 is a vertical surface, the limiting rod 125 will not separate from the limiting groove 124. At this time, the support ring 131 pushes the inner ring 122 through the collapsed part, and the inner ring 122 drives the outer ring 121 through the limiting rod 125, and the outer ring 121 pushes the pressure ring 113 to move.

[0073] It is worth noting that if Fig. 9 As shown, when the water tank 201 moves to the left, the support ring 131 on the right side will also be pushed by the compensation spring 123, so that the support ring 131 on the right side is always in contact with the side wall of the water tank 201, thereby buffering the water tank 201 when the water tank 201 begins to reset, so as to reduce the inertia force of the water tank 201.

[0074] It can be seen that during the reciprocating movement of the water tank 201 , the compensation assembly 120 can make the support ring 131 always press against the side wall of the water tank 201 , thereby weakening the power of the reciprocating motion and reducing the amplitude of the reciprocating motion of the water tank 201 .

[0075] In addition, in some other embodiments, Fig.10 As shown, the top of the convex ring 115 is provided with an inclined groove 116, which is a "U"-shaped structure, and the two sides of the inclined groove 116 expand outward to form an inclined surface. At the same time, the hook end of the pull rod 101 is in the inclined groove 116. In this way, when the water tank 201 moves along the length direction, the water tank 201 drives the pull rod 101 to push the inclined surface of the inclined groove 116, so that the inclined groove 116 converts the moving force of the pull rod 101 along the length direction of the water tank 201 into a thrust on the convex ring 115. At this time, the pull rod 101 pushes the convex ring 115 to move through the inclined groove 116, and the convex ring 115 pushes the pressure ring 113 to force the rubber pad 114 to deform for buffering.

[0076] That is to say, the pull rod 101 can not only pull the pressure ring 113 to move when the water tank 201 moves along the width direction, but also push the pressure ring 113 to move when the water tank 201 moves along the length direction, so that the rubber pad 114 can buffer the movement of the water tank 201 in multiple directions.

[0077] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An anti-fall device for an overhead building in an earthquake zone, characterized in that: It comprises a buffer assembly (110) fixedly connected to the cap beam (200) and located on both sides of the water tank (201), and a pull rod (101) having one end fixedly connected to the side wall of the water tank (201) and the other end extending to an end of the buffer assembly (110) away from the water tank (201); The buffer component (110) has a first buffer end facing the water tank (201) and a second buffer end facing away from the water tank (201), wherein the first buffer end is provided with a collapse component (130) abutting against a side wall of the water tank (201), and when the buffer component (110) is squeezed to a preset buffer state, the collapse component (130) provides elastic reset space for the squeezed buffer component (110) by reducing its own length; A distance is provided between the end of the pull rod (101) and the second buffer end of the buffer assembly (110); When one of the buffer components (110) is in the preset buffer state, the corresponding pull rod (101) contacts the second buffer end of the other buffer component (110), so that when the water tank (201) further moves in one direction, the buffer components (110) on both sides provide buffering for the water tank (201).

2. The anti-fall device for overhead buildings in earthquake zones according to claim 1, characterized in that: The buffer assembly (110) comprises a horizontally arranged crossbar (111), a plurality of equally spaced pressure rings (113), and a rubber pad (114) arranged between two adjacent pressure rings (113); wherein: The plurality of pressure rings (113) are slid between two limit blocks (112) fixedly arranged on the outer ring of the cross bar (111); The end of the crossbar (111) is fixedly connected to the side wall of the cap beam (200).

3. The anti-fall device for an overhead building in an earthquake zone according to claim 2, characterized in that: The preset buffering state is a state when the rubber pad (114) is unable to provide buffering.

4. The anti-fall device for overhead buildings in earthquake zones according to claim 1, characterized in that: One end of the pull rod (101) is bent downward to form a hook end, and a distance is provided between the hook end and the pressure ring (113). When the rubber pad (114) is elastically reset, the hook end contacts the pressure ring (113).

5. The anti-fall device for overhead buildings in earthquake zones according to claim 2, characterized in that: The collapse assembly (130) comprises an inner ring (122) connected to the side wall of the pressure ring (113), a support ring (131) arranged inside the inner ring (122), and a collapse portion, wherein: One end of the support ring (131) away from the pressure ring (113) protrudes from the end of the inner ring (122) and abuts against the side wall of the water tank (201); The water tank (201) applies thrust to the support ring (131) and transmits it to the inner ring (122) through the collapsed portion.

6. The anti-fall device for overhead buildings in earthquake zones according to claim 5, characterized in that: The collapse portion is a plurality of stopper sheets (132) fixedly arranged on the inner ring of the inner ring (122), and the plurality of stopper sheets (132) are located on the moving path of the support ring (131); the spacing length between two adjacent stopper sheets (132) corresponds to the length required for elastic reset of the rubber pad (114); The support ring (131) is slidably connected to the inner ring (122).

7. The anti-fall device for an overhead building in an earthquake zone according to claim 6, characterized in that: A partition groove (133) for reducing the contact area with the inner ring (122) is provided on the outer side of the stopper sheet (132).

8. The anti-fall device for an overhead building in an earthquake zone according to claim 5, characterized in that: The support ring (131) is provided with a plurality of sections, and the length between two adjacent sections corresponds to the length required for elastic reset of the rubber pad (114); The collapse portion is a crushing block (134) arranged between two adjacent support rings (131), and the crushing block (134) is made of a fragile material; One end of the inner ring (122) is bent toward the inner circle, and one end of the support ring (131) is against the bent portion of the inner ring (122).

9. The anti-fall device for an overhead building in an earthquake zone according to claim 2, characterized in that: A compensation component (120) is provided between the collapse component (130) and the pressure ring (113), the compensation component (120) comprising an outer ring (121) fixedly provided on the side wall of the pressure ring (113), the outer ring (121) being slidably provided on the outer ring of the inner ring (122), and a compensation spring (123) being provided between the end of the inner ring (122) and the side wall of the pressure ring (113) to elastically connect the two; The outer ring of the inner ring (122) is provided with a plurality of limit grooves (124), the plurality of limit grooves (124) being arranged along the length direction of the inner ring (122), and the outer ring of the outer ring (121) is slidably penetrated by a plurality of limit rods (125), and a return spring (126) is arranged between the top end of the limit rod (125) and the outer ring of the outer ring (121) to elastically connect the two; One end of the limiting rod (125) extending into the outer ring (121) is located in the limiting groove (124), and a slope is provided on the side of the limiting groove (124) facing the pressure ring (113).

10. The anti-fall device for overhead buildings in earthquake zones according to claim 2, characterized in that: A convex ring (115) is provided on one side of the pressure ring (113) close to the hook end of the pull rod (101), and a slanted groove (116) in a "U"-shaped structure is provided on the top of the convex ring (115). Both sides of the slanted groove (116) expand outward to form inclined surfaces, and the hook end of the pull rod (101) is located in the slanted groove (116).

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