Waterproof expansion joint with good temperature resistance

Abstract

The invention relates to the technical field of buildings, in particular to a waterproof expansion joint with good temperature resistance, which comprises a first building part and a second building part, a telescopic damping structure is connected between the first building part and the second building part, and the telescopic damping structure comprises a rubber telescopic plate and a metal connecting plate; a plurality of partition plates are arranged in the rubber telescopic plate in the left-right direction and divide the interior of the rubber telescopic plate into at least four cavities, and locking pieces are arranged in at least two cavities. The locking piece has a locking state and an unlocking state, when the locking piece is in the locking state, the cavity where the locking piece is located can keep a certain volume and is not prone to being compressed, and when the locking piece is in the unlocking state, the cavity where the locking piece is located can be compressed; when the metal connecting plate extrudes the rubber telescopic plate in the left-right direction, all the locking pieces can be automatically unlocked in sequence, so that the cavities where the locking pieces are located are compressed in sequence, the number of wrinkles formed on the rubber telescopic plate is small, and dust is convenient to clean.

Description

Technical Field

[0001] The invention relates to the technical field of construction, in particular to a waterproof expansion joint with good temperature resistance. Background Art

[0002] An expansion joint, also known as a temperature joint or expansion joint, is a structural gap in a building that extends above the foundation. Its purpose is to allow the building to expand and contract freely due to temperature fluctuations, thereby preventing excessive thermal stress within the structure, which could lead to cracking or damage.

[0003] Expansion joints often require waterproofing. For example, patent publication CN222878934U discloses an easy-to-install rubber waterstop assembly. The rubber waterstop body is located in the gap between two steel sections. Because the rubber waterstop body expands and contracts when subjected to lateral compression, wrinkles easily form on the rubber waterstop body. Dust easily accumulates within the wrinkles, making them difficult to clean. Summary of the Invention

[0004] Based on this, it is necessary to provide a waterproof expansion joint with good temperature resistance to address the technical problem that the rubber strips provided in the current expansion joint are inconvenient to clean.

[0005] The above purpose is achieved through the following technical solutions: A waterproof expansion joint with good temperature resistance comprises a first building member and a second building member, wherein a telescopic shock-absorbing structure is connected between the first building member and the second building member, wherein the telescopic shock-absorbing structure comprises a rubber expansion plate and a metal connecting plate, wherein the rubber expansion plate is a hollow structure, wherein a plurality of partition plates are arranged inside the rubber expansion plate along the left-right direction, and each partition plate extends along the front-back direction, and the partition plates divide the interior of the rubber expansion plate into at least four chambers, and at least two of the chambers are provided with locking members; the locking members have a locked state and an unlocked state, and when the locking members are in the locked state, the chamber where the locking members are located can maintain a certain volume and is not easily compressed, and when the locking members are in the unlocked state, the chamber where the locking members are located can be compressed; when the metal connecting plate squeezes the rubber expansion plate along the left-right direction, each locking member can be automatically unlocked in turn, thereby causing the chambers where they are located to be compressed in turn.

[0006] Furthermore, 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 includes a hinge seat, a hinge rod and an arc-shaped stopper. The hinge rod is hinged to the hinge seat, and the hinge seat is arranged on the partition plate on the left side of the chamber. The arc-shaped stopper is arranged on the partition plate on the right side of the chamber. The arc-shaped stopper can block the end of the hinge rod away from the hinge seat. When the arc-shaped stopper blocks the end of the hinge rod away from the hinge seat, the locking member is in a locked state; when the end of the hinge rod away from the hinge seat passes the arc-shaped stopper, the locking member is in an unlocked state.

[0007] Furthermore, in each chamber provided with a locking member from right to left, the angle between the connecting line of the hinge seat and the arc-shaped stopper and the partition plate where the hinge seat is located gradually decreases.

[0008] Furthermore, a one-way air inlet valve is provided at the position corresponding to each chamber on the rubber expansion plate, and the one-way air inlet valve only allows external gas to enter each chamber. A first one-way air outlet valve is provided 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.

[0009] Furthermore, a first steel section is fixed on the first building member, and a second steel section is slidably provided on the left end of the rubber expansion plate. The vertical cross-sections of the first steel section and the second steel section are both triangular, and the inclined surfaces of the first steel section and the second steel section are arranged in contact with each other. When the rubber expansion plate is subjected to an extrusion force in the left and right directions, the second steel section can slide in the up and down directions relative to the first steel section and the rubber expansion plate at the same time.

[0010] Furthermore, a guide rod is fixedly provided on the second steel section, and the guide rod extends in the left-right direction. The partition plate is slidably provided on the guide rod in the left-right direction. The interior of the guide rod is connected with the leftmost chamber. An exhaust pipe is provided inside the second steel section, and the exhaust pipe is connected with the interior of the guide rod. A second one-way air outlet valve is provided on the guide rod, and the second one-way air outlet valve only allows the gas inside the guide rod to flow to the exhaust pipe. The air outlet of the exhaust pipe corresponds to the interior of the first steel section.

[0011] Furthermore, a slide groove is provided on the metal connecting plate, and the slide groove corresponds to the guide rod one-to-one. When the metal connecting plate squeezes the rubber expansion plate in the left and right directions, the guide rod can slide along the slide groove.

[0012] Furthermore, a third steel section is provided at the right end of the metal connecting plate, and the third steel section includes 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-to-back direction. The universal joint seat rotates in conjunction with the rotating shaft.

[0013] 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.

[0014] 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.

[0015] The beneficial effects of the present invention are: 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.

[0016] 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.

[0017] 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

[0018] 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; Figure 2 An exploded schematic diagram of a waterproof expansion joint with good temperature resistance provided by one embodiment of the present invention; 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 ; 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); Figure 5 for Figure 4 Schematic diagram of another state (the telescopic shock absorbing structure is in a contracted state); Figure 6 A schematic side view of a waterproof expansion joint with good temperature resistance provided by an embodiment of the present invention Figure 2 ; Figure 7 for Figure 6 A magnified schematic diagram of the structure at point B in the middle; Figure 8 A top view of a waterproof expansion joint with good temperature resistance provided by one embodiment of the present invention; Figure 9 for Figure 8 Enlarged view of the structure at point C in the middle (the locking part is in the locked state); Figure 10 for Figure 9 Schematic diagram of another state (the locking member is in the unlocked state).

[0019] in: 100. Telescopic shock-absorbing structure; 101. First steel section; 102. Second steel section; 103. Second one-way air outlet valve; 104. Exhaust pipe; 105. Guide rod; 106. Partition plate; 107. Rubber telescopic plate; 108. 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 steel section; 115. Shock-absorbing plate; 116. One-way air inlet valve; 117. Articulated rod; 118. Articulated seat; 119. Arc-shaped stopper; 120. Slide; 200. First building component; 300. Second building component. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] A torsion spring (not shown) is provided between the hinge rod 117 and the hinge seat 118 . The torsion spring has a tendency to cause the hinge rod 117 to rotate rightward, thereby facilitating the automatic reset of the hinge rod 117 .

[0031] like Figure 8 and Figure 9 The locking member is shown in the locked state. At this time, the end of the hinge rod 117 away from the hinge seat 118 is blocked by the arc-shaped block 119, so that the hinge rod 117 cannot rotate to the left and the chamber cannot be compressed. Figure 10Shown as locking member is in unlocked state. When the end of hinged rod 117 away from hinged seat 118 passed arc stopper 119, hinged rod 117 could rotate to the left, and this chamber could be compressed.

[0032] Furthermore, in each chamber provided with a locking member from right to left, the angle between the connecting line of the hinge seat 118 and the arc-shaped stopper 119 and the partition plate 106 where the hinge seat 118 is located gradually decreases.

[0033] Specifically, the angle in the right chamber is about 3 degrees greater than the angle in the left chamber. This design ensures that the locking member in the right chamber is unlocked first, thereby compressing the right chamber first, and the locking member in the left chamber is unlocked later, thereby compressing the left chamber last, achieving a gradual compression of the chambers from right to left.

[0034] Furthermore, one-way air inlet valves 116 are installed on the rubber expansion plate 107 at positions corresponding to each chamber. These valves only allow outside air to enter each chamber. Each partition plate 106 is also equipped with a first one-way air outlet valve 109. These first one-way air outlet valves 109 only allow air from the right chamber to enter the adjacent left chamber. In this way, compressed air in the right chamber flows to the left.

[0035] A first steel section 101 is fixedly mounted on the first building member 200, and a second steel section 102 is slidably mounted on the left end of a rubber expansion plate 107. When the rubber expansion plate 107 is subjected to a left-right compressive force, the second steel section 102 can simultaneously slide vertically relative to the first steel section 101 and the rubber expansion plate 107. The vertical cross-sections of the first and second steel sections 101, 102 are both triangular, and the inclined surfaces of the first and second steel sections 101, 102 are arranged to contact each other.

[0036] like Figure 4 As shown, the first steel section 101 and the second steel section 102 are on the same horizontal plane. Figure 5 As shown, the rubber expansion plate 107 is subjected to a leftward squeezing force, causing wrinkles. Simultaneously, the second steel section 102 slides upward relative to the first steel section 101 and the rubber expansion plate 107. This converts the left-right squeezing force into a vertical component, reducing the squeezing force on the first building element 200. This process switches the telescopic shock-absorbing structure 100 from an extended state to a contracted state.

[0037] A guide rod 105 is fixedly provided on the second steel section 102, and the guide rod 105 extends in the left-right direction. The partition plate 106 is slidably provided on the guide rod 105 in the left-right direction. The interior of the guide rod 105 is communicated with the leftmost chamber. An exhaust pipe 104 is provided inside the second steel section 102, and the exhaust pipe 104 is communicated with the interior of the guide rod 105. A second one-way air outlet valve 103 is provided on the guide rod 105, and the second one-way air outlet valve 103 only allows the gas inside the guide rod 105 to flow to the exhaust pipe 104. The air outlet of the exhaust pipe 104 corresponds to the interior of the first steel section 101.

[0038] Specifically, each partition plate 106 is provided with a sliding sleeve 108, and the guide rod 105 slides inside the sliding sleeve 108. There are three guide rods 105, which are spaced apart in front and back. Each chamber is provided with two sets of locking members, and each set of locking members is located between two adjacent guide rods 105.

[0039] 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 interior of the first steel section 101, so that the accumulated water and impurities inside the first steel section 101 can be cleaned, thereby improving the sanitary condition of the building.

[0040] The metal connecting plate 110 is provided with a sliding groove 120, which corresponds one-to-one with the guide rod 105. When the metal connecting plate 110 squeezes 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-back axis, the guide rod 105 can drive the rubber expansion plate 107 to rotate synchronously.

[0041] A third steel section is provided at the right end of the metal connecting plate 110. This third steel section includes a rotating shaft 111 and a universal joint seat 112. The rotating shaft 111 is fixedly mounted at the bottom of the metal connecting plate 110 and extends in the front-to-back direction. The universal joint seat 112 rotatably engages with the rotating shaft 111. The rotational engagement between the rotating shaft 111 and the universal joint seat 112 enables the metal connecting plate 110 to rotate about its forward-to-backward axis, thereby accommodating the vertical movement of the second building element 300 and the first building element 200.

[0042] Furthermore, the second building member 300 is provided with a fourth steel section 114, which is provided with a track extending in the front-to-rear direction, along which the universal joint seat 112 can slide back and forth. The metal connecting plate 110 and the rubber expansion plate 107, as well as the rubber expansion plate 107 and the second steel section 102, can all slide back and forth relative to each other.

[0043] Specifically, the right side of the second steel section 102 and the left side of the metal connecting plate 110 are each provided with two upper and lower track grooves. The upper track groove opens upward, while the lower track groove opens downward. Both track grooves extend in the front-to-back direction. Positioning bars on the left and right ends of the inner side of the rubber expansion plate 107 are capable of sliding forward and backward with the track grooves on the second steel section 102 and the metal connecting plate 110, respectively. The positioning bars and the corresponding track grooves can slide relative to each other in the vertical direction for a certain distance. This allows for the relative forward and backward swinging and vertical movement of the second building element 300 and the first building element 200.

[0044] The second building member 300 is further provided with a vibration-damping plate 115 , which can block the metal connecting plate 110 in the left and right directions to prevent it from shifting.

[0045] Furthermore, an elastic woven mesh 113 is connected between the first building element 200 and the second building element 300. The elastic woven mesh 113 is connected to the first building element 200 and the second building element 300 by pouring concrete. The elastic woven mesh 113 is capable of bending and deforming, ensuring that the first building element 200 and the second building element 300 remain connected, thus preventing the formation of gaps due to the breakage of the rubber expansion plate 107 in extreme cases.

[0046] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows: When the first building element 200 and the second building element 300 approach 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 chambers at the leftmost and rightmost ends 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.

[0047] In the chamber with a locking piece in the middle, the volume increases due to the increase in air pressure in the first chamber on the right, so that the hinge rod 117 can automatically pass over the arc stopper 119, so that the hinge rod 117 is unlocked, so that the hinge rod 117 can rotate to the left, so that the chamber can be compressed and the volume is reduced, and a first wrinkle is generated on the surface of the rubber expansion plate 107. At the same time, the gas in the chamber enters the second chamber on the right through the first one-way air outlet valve 109; then the air pressure in the second chamber on the right increases, so that the hinge rod 117 in the chamber also automatically passes over the arc stopper 119, so that the hinge rod 117 can also rotate to the left, and the second chamber on the right can also be compressed and the volume is reduced, so that a second wrinkle is generated on the surface of the rubber expansion plate 107. At the same time, the gas in the chamber enters the third chamber on the right through the first one-way air outlet valve 109 until all chambers with locking pieces are compressed. The greater the extrusion pressure on the rubber expansion plate 107, the more chambers are compressed and the more wrinkles are generated; the smaller the extrusion pressure on the rubber expansion plate 107, the fewer chambers are compressed and the fewer wrinkles are generated.

[0048] After entering the leftmost chamber, the gas passes through the second one-way air outlet valve 103 and into the exhaust pipe 104. Then, it enters the first section steel 101 through the exhaust pipe 104, thereby clearing the accumulated water and impurities in the first section steel 101. The locking member, one-way air inlet valve 116, first one-way air outlet valve 109, and second one-way air outlet valve 103 cooperate to gradually compress the rubber expansion plate 107 and expel the gas, thus preventing the rubber expansion plate 107 from being squeezed from the inside and extending its service life.

[0049] When the first and second building elements 200, 300 stop rocking and return to their original positions, the torsion springs cause the hinged rods 117 to rotate clockwise and return to their original positions, causing them to be stopped by the arc-shaped stoppers 119 again, thus automatically locking the hinged rods 117. The clockwise rotation of the hinged rods 117 reopens the chambers in which they are located, allowing outside air to be drawn into the chambers through the one-way air inlet valves 116, restoring the inflated state.

[0050] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of the present invention. Therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. A waterproof expansion joint with good temperature resistance, characterized in that: The invention comprises a first building member and a second building member, wherein a telescopic shock-absorbing structure is connected between the first building member and the second building member, wherein the telescopic shock-absorbing structure comprises a rubber telescopic plate and a metal connecting plate. The rubber telescopic plate is a hollow structure, wherein a plurality of partition plates are provided inside the rubber telescopic plate along the left-right direction, each partition plate extending along the front-back direction, and the partition plates divide the interior of the rubber telescopic plate into at least four chambers, wherein at least two of the chambers are provided with locking members. The locking member has a locked state and an unlocked state. When the locking member is in the locked state, the chamber where the locking member is located can maintain a certain volume and is not easily compressed. When the locking member is in the unlocked state, the chamber where the locking member is located can be compressed. When the metal connecting plate squeezes the rubber expansion plate in the left and right directions, each locking member can be automatically unlocked in turn, so that the chamber where it is located is compressed in turn.

2. The waterproof expansion joint with good temperature resistance according to claim 1, characterized in that: 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 includes a hinge seat, a hinge rod and an arc-shaped stopper, the hinge rod is hinged to the hinge seat, the hinge seat is arranged on the partition plate on the left side of the chamber, and the arc-shaped stopper is arranged on the partition plate on the right side of the chamber, and the arc-shaped stopper can block the end of the hinge rod away from the hinge seat. When the arc-shaped stopper blocks the end of the hinge rod away from the hinge seat, the locking member is in a locked state; when the end of the hinge rod away from the hinge seat passes the arc-shaped stopper, the locking member is in an unlocked state.

3. The waterproof expansion joint with good temperature resistance according to claim 2, characterized in that: In each chamber provided with a locking member from right to left, the angle between the connecting line of the hinge seat and the arc-shaped stopper and the partition plate where the hinge seat is located gradually decreases.

4. The waterproof expansion joint with good temperature resistance according to claim 2, characterized in that: A one-way air inlet valve is provided at the position corresponding to each chamber on the rubber expansion plate, and the one-way air inlet valve only allows external gas to enter each chamber. A first one-way air outlet valve is provided 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.

5. The waterproof expansion joint with good temperature resistance according to claim 4, characterized in that: A first steel section is fixed on the first building member, and a second steel section is slidably provided on the left end of the rubber expansion plate. The vertical cross-sections of the first steel section and the second steel section are both triangular, and the inclined surfaces of the first steel section and the second steel section are arranged in contact with each other. When the rubber expansion plate is subjected to an extrusion force in the left and right directions, the second steel section can slide in the up and down directions relative to the first steel section and the rubber expansion plate at the same time.

6. The waterproof expansion joint with good temperature resistance according to claim 5, characterized in that: A guide rod is fixedly provided on the second steel section, and the guide rod extends in the left-right direction. The partition plate is slidably provided on the guide rod in the left-right direction. The interior of the guide rod is connected with the leftmost chamber. An exhaust pipe is provided inside the second steel section, and the exhaust pipe is connected with the interior of the guide rod. A second one-way air outlet valve is provided on the guide rod, and the second one-way air outlet valve only allows the gas inside the guide rod to flow to the exhaust pipe. The air outlet of the exhaust pipe corresponds to the interior of the first steel section.

7. The waterproof expansion joint with good temperature resistance according to claim 6, characterized in that: The metal connecting plate is provided with a sliding groove, and the sliding groove corresponds to the guide rod one by one. When the metal connecting plate squeezes the rubber telescopic plate in the left and right directions, the guide rod can slide along the sliding groove.

8. The waterproof expansion joint with good temperature resistance according to claim 1, characterized in that: A third steel section is provided at the right end of the metal connecting plate. The third steel section includes 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. The universal joint seat rotates in conjunction with the rotating shaft.

9. The waterproof expansion joint with good temperature resistance according to claim 8, characterized in that: A fourth steel section is provided on the second building component. A track extending in a front-to-back direction is provided on the fourth steel section. The universal joint seat can slide back and forth along the track.

10. The waterproof expansion joint with good temperature resistance according to claim 1, characterized in that: An elastic woven mesh is further 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.

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