Waterproof expansion joint with good temperature resistance

Abstract

The present application relates to the field of building technology, specifically relates to a waterproof expansion joint with good temperature resistance, comprising a first building part and a second building part, a stretch damping structure is connected between the first building part and the second building part, the stretch damping structure comprises a rubber expansion plate and a metal connecting plate, a plurality of partition plates are arranged in the rubber expansion plate along the left-right direction, the rubber expansion plate is divided into at least four chambers by the partition plates, and at least two chambers are provided with locking pieces; the locking piece has a locking state and an unlocking state, when the locking piece is in the locking state, the chamber where the locking piece is located can maintain a certain volume and is not easy to be compressed, when the locking piece is in the unlocking state, the chamber where the locking piece is located can be compressed; when the metal connecting plate extrudes the rubber expansion plate along the left-right direction, each locking piece can be automatically unlocked in turn, so that the chamber where the locking piece is located is compressed in turn, so that the number of wrinkles formed on the rubber expansion plate is small, and the dust is easy to clean.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building technology, in particular to a waterproof expansion joint with good temperature resistance. BACKGROUND

[0002] An expansion joint, also known as a temperature joint or expansion joint, is a man-made construction gap that runs through the part of a building above the foundation. Its purpose is to allow the building to freely deform due to temperature changes, thereby avoiding excessive temperature stress within the structure and preventing structural cracking or damage.

[0003] Expansion joints usually need to be waterproofed. For example, the patent document with publication number CN222878934U discloses a rubber waterstop assembly that is easy to install. The rubber waterstop body is located in the gap between two steel profiles. Since the rubber waterstop body will stretch when subjected to lateral pressure, it is prone to develop wrinkles, which can accumulate dust and make it difficult to clean. SUMMARY

[0004] Therefore, it is necessary to provide a waterproof expansion joint with good temperature resistance to address the technical problem of the rubber strip in the current expansion joint being difficult to clean.

[0005] The above-mentioned purpose is achieved by the following technical solutions:

[0006] A waterproof expansion joint with good temperature resistance includes a first building element and a second building element. A stretch damping structure is connected between the first building element and the second building element. The stretch damping structure includes a rubber stretch plate and a metal connecting plate. The rubber stretch plate is a hollow structure with multiple partition plates arranged in the left-right direction inside. Each partition plate extends in the front-back direction. The partition plates divide the interior of the rubber stretch plate into at least four chambers. At least two chambers are equipped with locking members. The locking members have a locked state and an unlocked state. When the locking members are in the locked state, the chambers where the locking members are located can maintain a certain volume and are not easily compressed. When the locking members are in the unlocked state, the chambers where the locking members are located can be compressed. When the metal connecting plate presses the rubber stretch plate in the left-right direction, the locking members can be automatically unlocked in sequence, so that the chambers where the locking members are located are compressed in sequence.

[0007] Further, the rubber expansion plate and the metal connecting plate are in the same horizontal plane, and the rubber expansion plate is located on the left side of the metal connecting plate, the locking member comprises a hinged seat, a hinged rod and an arc-shaped stopper, the hinged rod is hinged to the hinged seat, the hinged seat is arranged on the left side of the partition plate in the chamber, the arc-shaped stopper is arranged on the right side of the partition plate in the chamber, and the arc-shaped stopper can stop the end of the hinged rod away from the hinged seat; when the end of the hinged rod away from the hinged seat passes the arc-shaped stopper, the locking member is in the unlocked state.

[0008] Further, in each chamber provided with the locking member from right to left, the included angle between the line connecting the hinged seat and the partition plate where the hinged seat is located gradually decreases.

[0009] Further, the rubber expansion plate is provided with a one-way air inlet valve corresponding to the position of each chamber, the one-way air inlet valve only allows external gas to enter each chamber, each partition plate is provided with a first one-way air outlet valve, and the first one-way air outlet valve only allows gas to enter an adjacent left chamber from a right chamber.

[0010] Further, the first building member is fixedly provided with a first section steel, the left end of the rubber expansion plate is slidably provided with a second section steel, the vertical sections of the first section steel and the second section steel are all triangular, the inclined surfaces of the first section steel and the second section steel are in contact, and when the rubber expansion plate is subjected to extrusion force in the left-right direction, the second section steel can slide in the up-down direction relative to the first section steel and the rubber expansion plate.

[0011] Further, the second section steel is fixedly provided with a guide rod, the guide rod extends in the left-right direction, the partition plate is slidably arranged on the guide rod in the left-right direction, the inside of the guide rod is in communication with the leftmost chamber, the inside of the second section steel is provided with an exhaust pipe, the exhaust pipe is in communication with the inside of the guide rod, the guide rod is provided with a second one-way air outlet valve, the second one-way air outlet valve only allows gas in the inside of the guide rod to flow to the exhaust pipe, and the gas outlet of the exhaust pipe corresponds to the inside of the first section steel.

[0012] Further, the metal connecting plate is provided with a sliding groove, the sliding groove corresponds to the guide rod in one-to-one manner, and when the metal connecting plate extrudes the rubber expansion plate in the left-right direction, the guide rod can slide along the sliding groove.

[0013] Further, the right end of the metal connecting plate is provided with a third section steel, the third section steel comprises a rotating shaft and a universal joint seat, the rotating shaft is fixedly arranged at the bottom of the metal connecting plate and extends in the front-rear direction, and the universal joint seat is in rotating cooperation with the rotating shaft.

[0014] Furthermore, a fourth steel section is provided on the second building component, and a track extending in a front-to-rear direction is provided on the fourth steel section, and the universal joint seat can slide back and forth along the track.

[0015] Furthermore, an elastic woven mesh is connected between the first building element and the second building element, and the elastic woven mesh is connected to the first building element and the second building element by pouring concrete.

[0016] The beneficial effects of the present invention are:

[0017] The present invention provides a waterproof expansion joint with good temperature resistance. First, at least four chambers are formed inside the rubber expansion plate by a partition plate, and locking members are provided in at least two of the chambers. When the rubber expansion plate is subjected to an extrusion force in the left and right directions, each locking member can be automatically unlocked in sequence, so that the chambers in which they are located are compressed in sequence. In this way, when the rubber expansion plate is subjected to a small extrusion force, only the locking members in a part of the chambers are unlocked, thereby allowing the chambers to be compressed, causing wrinkles to be generated on the outer surface of the rubber expansion plate, while the remaining chambers remain in an inflated state, and wrinkles will not be generated on the outer surface of the rubber expansion plate. As a result, the number of wrinkles formed on the rubber expansion plate is small, which makes it easier to clean dust.

[0018] Second, when the rubber expansion plate is compressed, the gas in the right chamber enters the left chamber in turn, and the gas in the leftmost chamber enters the guide rod, and finally enters the exhaust pipe through the second one-way air outlet valve. The exhaust pipe corresponds to the inside of the first steel section, thereby cleaning the accumulated water and impurities inside the first steel section and improving the sanitary condition of the expansion joint.

[0019] Third, with the cooperation of the locking member and the one-way air inlet valve, the first one-way air outlet valve, and the second one-way air outlet valve, the rubber expansion plate can be gradually compressed and the gas can be discharged, which can prevent the rubber expansion plate from being squeezed from the inside, thereby extending the service life of the rubber expansion plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a waterproof expansion joint with good temperature resistance provided by one embodiment of the present invention;

[0021] Figure 2 An exploded schematic diagram of a waterproof expansion joint with good temperature resistance provided by one embodiment of the present invention;

[0022] Figure 3 A schematic side view of a waterproof expansion joint with good temperature resistance provided by an embodiment of the present invention Figure 1 ;

[0023] Figure 4 for Figure 3 A magnified view of the structure at point A in the middle (the telescopic shock-absorbing structure is in the extended state);

[0024] Figure 5 Figure 2 is another state schematic view (the telescopic damping structure is in the contracted state) of the telescopic damping structure of the present application; Figure 4

[0025] Figure 6 Figure 4 is a side view schematic of the waterproof expansion joint with good temperature resistance provided by an embodiment of the present application; Figure 2

[0026] Figure 7 Figure 5 is an enlarged schematic view of the structure at B in Figure 4; Figure 6

[0027] Figure 8 Figure 6 is a top view of the waterproof expansion joint with good temperature resistance provided by an embodiment of the present application;

[0028] Figure 9 Figure 7 is an enlarged view of the structure at C in Figure 6 (the locking member is in the locked state); Figure 8

[0029] Figure 10 Figure 8 is another state schematic view (the locking member is in the unlocked state) of the telescopic damping structure of the present application; Figure 9

[0030] Wherein:

[0031] 100, telescopic damping structure; 101, first section steel; 102, second section steel; 103, second one-way air outlet valve; 104, exhaust pipe; 105, guide rod; 106, partition plate; 107, rubber expansion plate; 108, sliding sleeve; 109, first one-way air outlet valve; 110, metal connecting plate; 111, rotating shaft; 112, universal joint seat; 113, elastic woven mesh; 114, fourth section steel; 115, shock absorbing plate; 116, one-way air inlet valve; 117, hinged rod; 118, hinged seat; 119, arc-shaped stop block; 120, sliding groove; 200, first building element; 300, second building element. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below with reference to the embodiments and in conjunction with the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0033] ​​​​​The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0034] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0035] like Figures 1 to 10 As shown, an embodiment of the present invention provides a waterproof expansion joint with good temperature resistance, including a first building member 200 and a second building member 300. A telescopic shock-absorbing structure 100 is connected between the first building member 200 and the second building member 300. The telescopic shock-absorbing structure 100 includes a rubber expansion plate 107 and a metal connecting plate 110. The rubber expansion plate 107 is a hollow structure. A plurality of partition plates 106 are arranged inside the rubber expansion plate 107 along the left-right direction. Each partition plate 106 extends along the front-back direction. The partition plates 106 divide the interior of the rubber expansion plate 107 into at least four chambers. Locking elements are provided in at least two of the chambers. The locking elements have a locked state and an unlocked state. When the locking element is in the locked state, the chamber where the locking element is located can maintain a certain volume and is not easily compressed. When the locking element is in the unlocked state, the chamber where the locking element is located can be compressed. When the metal connecting plate 110 squeezes the rubber expansion plate 107 in the left-right direction, each locking element can be automatically unlocked in sequence, thereby causing the chamber where it is located to be compressed in sequence.

[0036] The first building member 200 and the second building member 300 are buildings such as building members, bridge bodies, etc. The rubber expansion plate 107 has waterproof and heat-resistant properties, thereby making the expansion joint heat-resistant and waterproof.

[0037] In this embodiment, eight partition plates 106 are provided, and locking members are provided in the four middle chambers. In other embodiments, five, six, nine, etc. partition plates 106 can be provided, and locking members can be provided in two, three, or six of the chambers.

[0038] In this embodiment, the two middle partition plates 106 are closely arranged to enhance the strength of the middle portion of the rubber partition plate 106. In other embodiments, two adjacent partition plates 106 are spaced apart.

[0039] Specifically, each partition plate 106 is provided with positioning grooves on its upper and lower sides, and the rubber expansion plate 107 is provided with positioning strips on its upper and lower inner sides. Multiple positioning strips are spaced apart along the left and right sides, corresponding one to each positioning groove and capable of sliding relative to each other vertically for a certain distance. The positioning strips and the positioning grooves are capable of sliding back and forth. When the partition plate 106 moves leftward, it causes the outer surface of the rubber expansion plate 107 to contract, thereby producing wrinkles.

[0040] The waterproof expansion joint with good temperature resistance of the present invention forms at least four chambers inside the rubber expansion plate 107 through the partition plate 106, and locking members are provided in at least two of the chambers. When the rubber expansion plate 107 is subjected to an extrusion force in the left and right directions, each locking member can be automatically unlocked in sequence, so that the chamber in which it is located is compressed in sequence. In this way, when the rubber expansion plate 107 is subjected to a small extrusion force, only the locking members in a part of the chambers are unlocked, thereby allowing the chamber to be compressed, causing wrinkles to form on the outer surface of the rubber expansion plate 107, while the remaining chambers remain in an inflated state, and wrinkles will not form on the outer surface of the rubber expansion plate 107. As a result, the number of wrinkles formed on the rubber expansion plate 107 is small, thereby facilitating dust cleaning.

[0041] like Figure 6 As shown, the rubber expansion plate 107 and the metal connecting plate 110 are in the same horizontal plane, and the rubber expansion plate 107 is located to the left of the metal connecting plate 110. The locking member includes a hinge seat 118, a hinge rod 117, and an arcuate stopper 119. The hinge rod 117 is hinged to the hinge seat 118, which is disposed on the left side of the partition plate 106 in the chamber. The arcuate stopper 119 is disposed on the right side of the partition plate 106 in the chamber. The arcuate stopper 119 is capable of blocking the end of the hinge rod 117 away from the hinge seat 118. When the arcuate stopper 119 blocks the end of the hinge rod 117 away from the hinge seat 118, the locking member is in a locked state. When the end of the hinge rod 117 away from the hinge seat 118 passes the arcuate stopper 119, the locking member is in an unlocked state. The arc-shaped stopper 119 has an arc-shaped surface, and a certain friction force is generated between the arc-shaped surface and the end of the hinge rod 117 , thereby preventing the hinge rod 117 from rotating leftward.

[0042] A torsion spring (not shown in the figure) is arranged between the articulated rod 117 and the articulated seat 118, and has a tendency to rotate the articulated rod 117 to the right, facilitating automatic reset of the articulated rod 117.

[0043] As shown in Figure 8 and Figure 9 , the locking member is in the locked state. At this time, the end of the articulated rod 117 away from the articulated seat 118 is stopped by the arc-shaped stopper 119, so that the articulated rod 117 cannot rotate to the left, and the chamber cannot be compressed. As shown in Figure 10 , the locking member is in the unlocked state. At this time, when the end of the articulated rod 117 away from the articulated seat 118 passes the arc-shaped stopper 119, the articulated rod 117 can rotate to the left, and the chamber can be compressed.

[0044] Further, in each chamber from right to left with a locking member, the included angle between the line connecting the articulated seat 118 and the arc-shaped stopper 119 and the partition plate 106 where the articulated seat 118 is located gradually decreases.

[0045] Specifically, the included angle in the right chamber is about 3° larger than that in the left chamber. This design can ensure that the locking member in the right chamber is unlocked first, so that the right chamber is compressed first, while the locking member in the left chamber is unlocked later, so that the left chamber is compressed later, realizing step-by-step compression of the chambers from right to left.

[0046] Further, the rubber expansion plate 107 is provided with a one-way air inlet valve 116 corresponding to the position of each chamber, and the one-way air inlet valve 116 only allows external gas to enter each chamber. Each partition plate 106 is provided with a first one-way air outlet valve 109, and the first one-way air outlet valve 109 only allows gas to enter the adjacent left chamber from the right chamber. In this way, the gas compressed in the right chamber flows to the left chamber in turn.

[0047] The first building member 200 is fixedly provided with a first section steel 101, and the left end of the rubber expansion plate 107 is slidably provided with a second section steel 102. When the rubber expansion plate 107 is subjected to extrusion force in the left-right direction, the second section steel 102 can simultaneously slide relative to the first section steel 101 and the rubber expansion plate 107 in the up-down direction. The vertical section of the first section steel 101 and the second section steel 102 is a triangle, and the inclined surfaces of the first section steel 101 and the second section steel 102 are in contact.

[0048] As shown in Figure 4 , the first section steel 101 and the second section steel 102 are in the same horizontal plane. As shown in Figure 5As shown, the rubber expansion plate 107 is pressed to the left and is wrinkled, and the second steel bar 102 is simultaneously slid upward relative to the first steel bar 101 and the rubber expansion plate 107, thereby converting the left-right direction pressing force into an upward-downward direction component force, and reducing the pressing force on the first building part 200. This process is the switching of the expansion shock-absorbing structure 100 from the expansion state to the contraction state.

[0049] The second steel bar 102 is fixed with a guide rod 105 extending in the left-right direction, and the partition plate 106 is slidably arranged on the guide rod 105 in the left-right direction. The inside of the guide rod 105 is in communication with the leftmost chamber, and the second steel bar 102 is internally provided with an exhaust pipe 104 in communication with the inside of the guide rod 105. The guide rod 105 is provided with a second one-way air outlet valve 103, which only allows the gas in the inside of the guide rod 105 to flow to the exhaust pipe 104, and the gas outlet of the exhaust pipe 104 corresponds to the inside of the first steel bar 101.

[0050] Specifically, each partition plate 106 is provided with a sliding sleeve 108, and the guide rod 105 slides in the inside of the sliding sleeve 108. The guide rod 105 is provided with three, which are distributed in front of and behind each other, and each chamber is provided with two groups of locking members, each group of locking members is located between the adjacent two guide rods 105.

[0051] In this way, when the rubber expansion plate 107 is compressed, the gas in the right chamber enters the left chamber in turn, and the gas in the leftmost chamber can enter the guide rod 105, and finally enter the exhaust pipe 104 through the second one-way air outlet valve 103. The exhaust pipe 104 corresponds to the inside of the first steel bar 101, so as to clean the accumulated water and impurities in the inside of the first steel bar 101, and improve the sanitary condition of the building.

[0052] The metal connecting plate 110 is provided with a sliding groove 120 corresponding to the guide rod 105 one by one. When the metal connecting plate 110 presses the rubber expansion plate 107 in the left-right direction, the guide rod 105 can slide along the sliding groove 120. When the metal connecting plate 110 rotates around the front-rear axis, the rubber expansion plate 107 can be driven to rotate synchronously by the guide rod 105.

[0053] The right end of the metal connecting plate 110 is provided with a third steel bar, which includes a rotating shaft 111 and a universal joint seat 112. The rotating shaft 111 is fixedly arranged at the bottom of the metal connecting plate 110 and extends in the front-rear direction. The universal joint seat 112 is in rotational cooperation with the rotating shaft 111. The rotational cooperation between the rotating shaft 111 and the universal joint seat 112 enables the metal connecting plate 110 to rotate around the front-rear extending axis, so as to adapt to the upward-downward movement of the second building part 300 and the first building part 200.

[0054] Further, the second building part 300 is provided with a fourth section steel 114, the fourth section steel 114 is provided with a track extending along the front-rear direction, and the universal joint seat 112 can slide along the track in the front-rear direction. The metal connecting plate 110, the rubber expansion plate 107 and the second section steel 102 can slide relative to each other in the front-rear direction.

[0055] Specifically, the right side of the second section steel 102 and the left side of the metal connecting plate 110 are both provided with two track grooves extending along the front-rear direction, the upper track groove opens upward, and the lower track groove opens downward. The positioning strips at the left and right ends of the inner side of the rubber expansion plate 107 can slide relative to the track grooves on the second section steel 102 and the metal connecting plate 110 in the front-rear direction, and the positioning strips and the corresponding track grooves can slide relative to each other in the up-down direction by a certain distance. In this way, the front-rear relative swing and the up-down movement of the second building part 300 and the first building part 200 can be adapted.

[0056] The second building part 300 is also provided with a shock absorbing plate 115, which can stop the metal connecting plate 110 from moving in the left-right direction and prevent it from moving.

[0057] Further, the first building part 200 and the second building part 300 are also connected by an elastic woven net 113, which is connected to the first building part 200 and the second building part 300 by concrete pouring. The elastic woven net 113 can bend and deform, so that the first building part 200 and the second building part 300 are always connected, avoiding the generation of gaps after the rubber expansion plate 107 breaks in extreme cases.

[0058] In combination with the above-mentioned embodiments, the use principle and working process of the embodiments of the present application are as follows:

[0059] When the first building part 200 and the second building part 300 move closer to each other in the left-right direction, the rubber expansion plate 107 is subjected to a squeezing force in the left-right direction, so that the leftmost and rightmost chambers of the rubber expansion plate 107 are compressed first, and the gas in the rightmost chamber is squeezed into the adjacent chamber on the left side.

[0060] In the chamber with the locking member, the volume of the chamber increases due to the increase of the air pressure in the first chamber on the right, which enables the articulated rod 117 to automatically go over the arc-shaped stopper 119, so that the articulated rod 117 is unlocked, and the articulated rod 117 can rotate to the left, so that the chamber can be compressed to reduce the volume, and the first wrinkle is generated on the surface of the rubber stretchable plate 107, and the gas in the chamber enters the second chamber on the right through the first one-way air outlet valve 109; then the volume of the second chamber on the right is reduced due to the increase of the air pressure in the second chamber on the right, which enables the articulated rod 117 in the chamber to also automatically go over the arc-shaped stopper 119, so that the articulated rod 117 can also rotate to the left, and the second chamber on the right can also be compressed to reduce the volume, so that the second wrinkle is generated on the surface of the rubber stretchable plate 107, and the gas in the chamber enters the third chamber on the right through the first one-way air outlet valve 109, until all the chambers with the locking member are compressed. The greater the extrusion force on the rubber stretchable plate 107, the more the chambers are compressed, and the more the wrinkles are generated; the smaller the extrusion force on the rubber stretchable plate 107, the fewer the chambers are compressed, and the fewer the wrinkles are generated.

[0061] After the gas enters the leftmost chamber, it enters the exhaust pipe 104 through the second one-way air outlet valve 103, and then enters the first type steel 101 through the exhaust pipe 104, so as to clean the accumulated water and impurities in the first type steel 101. Under the cooperation of the locking member and the one-way air inlet valve 116, the first one-way air outlet valve 109 and the second one-way air outlet valve 103, the rubber stretchable plate 107 can be gradually compressed and the gas can be discharged, which can prevent the rubber stretchable plate 107 from being broken from the inside, thereby prolonging the service life of the rubber stretchable plate 107.

[0062] When the first building part 200 and the second building part 300 stop shaking and reset, the torsional spring can rotate the articulated rod 117 to the right to reset, and the articulated rod 117 is stopped by the arc-shaped stopper 119 again, so as to automatically lock the articulated rod 117. The rotation of the articulated rod 117 to the right can make the chamber where the articulated rod 117 is located be opened again, so that the external gas can be sucked into the chamber through the one-way air inlet valve 116, so as to restore the inflation state of the chamber.

[0063] The technical features of the above embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0064] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A waterproof expansion joint with good temperature resistance, characterized in that, The application relates to a structure for connecting a first building component and a second building component, which comprises a rubber expansion plate and a metal connecting plate, wherein the rubber expansion plate is a hollow structure, a plurality of partition plates are arranged in the rubber expansion plate along the left-right direction, each partition plate extends along the front-back direction, the partition plates divide the inside of the rubber expansion plate into at least four chambers, and at least two chambers are provided with locking members. The locking members have a locking state and an unlocking state, the chamber where the locking member is located can maintain a certain volume and is not easy to be compressed when the locking member is in the locking state, and the chamber where the locking member is located can be compressed when the locking member is in the unlocking state; when the metal connecting plate extrudes the rubber expansion plate along the left-right direction, each locking member can be automatically unlocked in sequence, so that the chamber where the locking member is located is compressed in sequence, the rubber expansion plate and the metal connecting plate are located in the same horizontal plane, and the rubber expansion plate is located on the left side of the metal connecting plate; the locking member comprises a hinged seat, a hinged rod and an arc-shaped stopper, the hinged rod is hinged to the hinged seat, the hinged seat is arranged on the left partition plate in the chamber, the arc-shaped stopper is arranged on the right partition plate in the chamber, the arc-shaped stopper can stop the end of the hinged rod away from the hinged seat, and the locking member is in the locking state when the arc-shaped stopper stops the end of the hinged rod away from the hinged seat; when the end of the hinged rod away from the hinged seat passes the arc-shaped stopper, the locking member is in the unlocking state, and the included angle between the line connecting the hinged seat and the arc-shaped stopper and the partition plate where the hinged seat is located gradually decreases in each chamber where the locking member is located from right to left.

2. The waterproof expansion joint with good temperature resistance according to claim 1, characterized in that, A one-way air inlet valve is arranged on the rubber expansion plate at the position corresponding to each chamber, the one-way air inlet valve only allows external gas to enter each chamber, a first one-way air outlet valve is arranged on each partition plate, and the first one-way air outlet valve only allows gas to enter the adjacent left chamber from the right chamber.

3. The waterproof expansion joint with good temperature resistance according to claim 2, characterized in that, A first section steel is fixedly arranged on the first building component, a second section steel is slidably arranged at the left end of the rubber expansion plate, the vertical section of the first section steel and the second section steel is triangular, and the inclined surfaces of the first section steel and the second section steel are in contact, and the second section steel can slide along the up-down direction relative to the first section steel and the rubber expansion plate when the rubber expansion plate is extruded along the left-right direction.

4. The waterproof expansion joint with good temperature resistance according to claim 3, characterized in that, A guide rod is fixedly arranged on the second section steel, the guide rod extends along the left-right direction, the partition plates are slidably arranged on the guide rod along the left-right direction, the inside of the guide rod is communicated with the leftmost chamber, an exhaust pipe is arranged in the inside of the second section steel, the inside of the guide rod is communicated with the exhaust pipe, a second one-way air outlet valve is arranged on the guide rod, the second one-way air outlet valve only allows the gas in the inside of the guide rod to flow to the exhaust pipe, and the gas outlet of the exhaust pipe corresponds to the inside of the first section steel.

5. The waterproof expansion joint with good temperature resistance according to claim 4, characterized in that, A sliding groove is arranged on the metal connecting plate, and the sliding groove corresponds to the guide rod one by one, and the guide rod can slide along the sliding groove when the metal connecting plate extrudes the rubber expansion plate along the left-right direction.

6. The waterproof expansion joint with good temperature resistance according to claim 1, characterized in that, The right end of the metal connecting plate is provided with a third section steel, the third section steel comprises a rotating shaft and a universal joint seat, the rotating shaft is fixedly arranged at the bottom of the metal connecting plate and extends along the front-rear direction, and the universal joint seat is in rotating fit with the rotating shaft.

7. The waterproof expansion joint with good temperature resistance according to claim 6, characterized in that, The fourth section steel is arranged on the second building part, the fourth section steel is provided with a track extending along the front-rear direction, and the universal joint seat can slide along the track in the front-rear direction.

8. The waterproof expansion joint with good temperature resistance according to claim 1, characterized in that, The first building part and the second building part are further connected with an elastic woven net, and the elastic woven net is connected with the first building part and the second building part through concrete pouring.

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