A waterproof structure for building expansion joints and its construction method

Abstract

This application relates to a waterproof structure for building expansion joints, comprising two main building structures with an expansion joint between them, as well as a waterstop and a locking assembly. Each of the two main building structures has a fitting groove communicating with the expansion joint. The waterstop overlaps the two fitting grooves. The locking assembly includes a fixed plate, two sliding plates, and an expansion joint member. The two sliding plates are located on either side of the fixed plate and are symmetrically arranged about the fixed plate. The sliding plates are slidably connected to the fixed plate. The waterstop is located between the bottom wall of the fitting groove and the sliding plate, extending into the expansion joint. The expansion joint member is installed between the two sliding plates. The application also relates to a construction method for the waterproof structure of building expansion joints, including slotting the main building structure, installing the fire-resistant strip, laying the waterstop, installing the elastic interlocking plate, installing the locking assembly, and filling with sealant. This method improves the construction efficiency of the waterproof structure of the building expansion joint while ensuring the waterproof effect of the expansion joint.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building waterproof engineering, in particular to a building expansion joint waterproof structure and a construction method thereof. BACKGROUND

[0002] Building waterproofing is a kind of building engineering to ensure that the structure of a building is not affected by rainwater and the internal space is not harmed by rainwater. Building waterproofing engineering mainly includes coiled material waterproofing, film-coating waterproofing, rigid waterproofing and structural waterproofing. Wall joint and deformation joint node detail structure belong to structural waterproofing. Deformation joint mainly includes expansion joint, settlement joint and anti-seismic joint. Expansion joint is a structural joint set at appropriate positions along the construction joint direction of a building structure to prevent the thermal expansion and cold contraction of building components due to climate temperature changes, which may cause cracks or damage to the building structure.

[0003] The prior art discloses a civil engineering expansion joint waterproof structure, which comprises an expansion joint formed between a first floor and a second floor, and further comprises: a first connecting box body, which is open at a right side end and is hinged to one side end of the first floor; a second connecting box body, which is partially sleeved into the right side end of the first connecting box body, and is hinged to one side end of the second floor; a traction mechanism, which is connected between the first connecting box body and the second connecting box body; an expansion support mechanism, which is hinged to the side wall of the first floor or the second floor below the second connecting box body at a lower end, and is hinged to the first connecting box body close to the right side end at an upper end; and a drainage groove, which is arranged on the upper surfaces of the first connecting box body and the second connecting box body.

[0004] According to the related technology, the applicant believes that the first hinge seat is fixedly installed on the side wall of the first floor. However, due to the small size of the expansion joint formed by the first floor and the second floor, the installation of the first hinge seat is inconvenient, which affects the installation efficiency of the civil engineering expansion joint waterproof structure. SUMMARY

[0005] In order to improve the installation efficiency of the building expansion joint waterproof structure, the application provides a building expansion joint waterproof structure and a construction method thereof.

[0006] In the first aspect, the application provides a building expansion joint waterproof structure, which adopts the following technical scheme:

[0007] A building expansion joint waterproof structure, two building main bodies, an expansion joint is arranged between the two building main bodies, and a water stop belt and a locking assembly are further included;

[0008] A fitting groove is arranged on the top wall of each of the two building main bodies, and the fitting groove is communicated with the expansion joint, and the water stop belt is respectively overlapped on the two fitting grooves;

[0009] The locking assembly is used for sealing the expansion joint, and comprises a fixed plate, two sliding plates and a plurality of expansion pieces;

[0010] The two sliding plates are located on two sides of the fixed plate and are symmetrically arranged about the fixed plate, the sliding plates are in sliding connection with the fixed plate, the water stop is located between the bottom wall of the fitting groove and the sliding plate, and the water stop extends into the expansion joint;

[0011] The expansion piece is installed between the two sliding plates, and the expansion piece drives the two sliding plates to move away from each other.

[0012] By adopting the above technical scheme, when the waterproof structure of the building expansion joint is installed, first, the fire barrier is installed in the expansion joint, then the two sides of the water stop are laid on the bottom wall of the fitting groove on both sides of the expansion joint, and the excess part of the water stop is embedded into the expansion joint; then, the sliding plate and the fixed plate are arranged opposite to the fitting groove and the expansion joint, and force is applied to the sliding plate, so that the two sliding plates are close to each other, and move to a distance between the two sliding plates away from each other which is less than the distance between the two groove walls of the two fitting grooves away from each other, at the same time, the expansion piece is compressed, then downward force is applied, so that the fixed plate and the two sliding plates are embedded in the fitting groove, the force applied to the sliding plate is stopped, the expansion piece automatically recovers, the expansion piece drives the two sliding plates to move away from each other, so that the sliding plate and the fixed plate seal the fitting groove and the expansion joint; then, the gap between the locking assembly and the building body is sealed by the sealant; the waterproof structure of the building expansion joint is designed, the two sliding plates are driven away from each other by the expansion piece, so that the sliding plate cooperates with the fixed plate to seal the expansion joint, and the installation efficiency of the waterproof structure of the building expansion joint is improved.

[0013] Optionally, the fitting groove wall is provided with an elastic buckle plate, the elastic buckle plate comprises a connecting portion, a horizontal portion and a clamping portion which are integrally arranged, the connecting portion is installed on the building body, a clamping gap is formed between the connecting portion and the clamping portion, and the sliding plate away from the fixed plate is provided with a clamping convex edge embedded in the clamping gap;

[0014] The clamping portion and the bottom wall of the fitting groove leave an installation gap for the sliding plate and the clamping convex edge to extend into.

[0015] By adopting the above technical scheme, the elastic buckle plate is designed, the clamping gap formed by the connecting portion and the clamping portion facilitates the cooperation of the clamping convex edge and the clamping gap, and the fixed installation of the sliding plate and the fixed plate is realized; in addition, the installation gap between the clamping portion and the bottom wall of the fitting groove facilitates the extension of the sliding plate and the clamping convex edge into the clamping gap, and ensures the installation of the sliding plate and the elastic buckle plate.

[0016] Optionally, the connecting part comprises a vertical segment and an inclined segment, the vertical segment is connected with the building body, and the vertical segment is arranged in parallel with the clamping part, the inclined segment is arranged below the horizontal part, and the inclined segment is arranged from high to low along one side of the vertical segment to one side of the expansion joint, the water stop is arranged between the inclined segment and the bottom wall of the embedded groove, and the inclined segment abuts against the water stop and the bottom wall of the embedded groove.

[0017] By adopting the above technical scheme, the connecting part arranged in sections, the vertical segment is convenient to connect with the building body, and realizes the fixed connection of the elastic buckling plate and the building body; the inclined segment is convenient to abut against the water stop, and then the water stop is preliminarily fixed.

[0018] Optionally, the connecting part further comprises at least one insertion segment, the insertion segment is arranged on the side of the inclined segment away from the vertical segment, the building body is provided with an insertion groove for inserting the insertion segment, and the insertion groove is communicated with the embedded groove.

[0019] By adopting the above technical scheme, the designed insertion segment is convenient to cooperate with the insertion groove of the building body, and realizes the fixed insertion of the elastic buckling plate and the building body.

[0020] Optionally, the connecting part further comprises an extension segment, the extension segment is fixedly connected with the end of the inclined segment away from the vertical segment, and the extension segment abuts against the water stop.

[0021] By adopting the above technical scheme, the designed extension segment is convenient to increase the contact area of the elastic buckling plate and the water stop, and then realizes the stable abutment of the water stop and the building body, and guarantees the stable connection of the water stop.

[0022] Optionally, the fixed plate is provided with a pushing assembly for fixing the water stop.

[0023] The pushing assembly comprises a limiting plate and a plurality of adjustable members, the plurality of adjustable members are uniformly distributed along the length direction of the expansion joint, the limiting plate is arranged opposite to the expansion joint, and the adjustable members drive the limiting plate to abut against the water stop.

[0024] Through the above technical scheme, the two sides of the waterstop are laid on the embedded groove bottom walls on the two sides of the expansion joint, and the excess part of the waterstop is embedded into the expansion joint, then the insertion section of the elastic buckling plate is inserted into the insertion groove by facing the insertion groove, then the sliding plates are faced with the gap between the two elastic buckling plates, and force is applied to the sliding plates, so that the two sliding plates are close to each other, and move to the side where the distance between the two sliding plates is less than the distance between the two elastic buckling plates, and at the same time, the expansion piece is compressed; force is applied downward, so that the fixed plate and the two sliding plates move downward along the gap between the two elastic buckling plates, and when the sliding plates face the installation gap, the expansion piece automatically recovers, the expansion piece drives the sliding plates and the engagement convex edges to move to the side of the installation gap, until the sliding plates and the engagement convex edges extend into the engagement gap; in addition, during the downward movement of the fixed plate, the fixed plate applies force to the adjusting piece, the adjusting piece applies force to the limiting plate, so that the limiting plate abuts against the waterstop and the expansion joint; the designed abutting and pushing assembly facilitates the application of force to the limiting plate, so that the limiting plate applies force to the waterstop, and the position of the waterstop is fixed.

[0025] Optionally, the adjusting piece comprises a limiting nut, a guide rod and a guide spring;

[0026] One end of the guide rod is fixedly connected with the fixed plate, and the other end of the guide rod penetrates through the limiting plate and is arranged;

[0027] One end of the guide rod protruding from the limiting plate is threadedly connected with the limiting nut;

[0028] The guide spring is located between the fixed plate and the limiting plate, and the guide spring drives the limiting plate to move away from the fixed plate.

[0029] Through the above technical scheme, when the fixed plate moves downward, the fixed plate applies force to the guide rod, the guide rod drives the guide spring and the limiting plate to move downward, when the limiting plate contacts the waterstop, the fixed plate drives the guide rod and the limiting plate to continue to move downward, the building main body and the waterstop apply force to the limiting plate, so that the guide spring is compressed, the fixed plate and the two sliding plates move downward along the gap between the two elastic buckling plates, when the sliding plates face the installation gap, the expansion piece drives the sliding plates and the engagement convex edges to extend into the engagement gap, then the force applied to the fixed plate is stopped, the guide spring recovers, the guide spring drives the fixed plate to move upward, so that the engagement convex edges are clamped in the engagement gap between the connecting part and the engagement part, through the reaction force of the guide spring, the sliding plates and the bottom wall of the engagement part are abutted tightly; the designed adjusting piece facilitates the application of force to the fixed plate and the limiting plate, so that the limiting plate abuts against the waterstop and the building main body, and the position of the waterstop is fixed; at the same time, the fixed plate is driven to move upward, the sliding plates and the elastic buckling plates are clamped tightly, and the connection performance of the sliding plates and the elastic buckling plates is ensured.

[0030] Optionally, the limiting plate gradually decreases in cross-sectional area from the end close to the guide rod to the end away from the guide rod, and the maximum cross-sectional area of the limiting plate is greater than the cross section of the expansion joint.

[0031] By adopting the above technical solution, the cross section of the limiting plate gradually increases from high to low, which facilitates pushing the water stop belt against the joint opening of the expansion joint through the limiting plate. In addition, when the building main body slightly deforms, the building main body exerts force on the limiting plate to facilitate driving the limiting plate to slightly rise and fall.

[0032] Optionally, the expansion piece includes a plurality of compression springs, one end of the compression spring being connected with the sliding plate, and the other end being connected with the other sliding plate.

[0033] By adopting the above technical solution, the compression spring is designed to facilitate exerting force on the sliding plate to move the two sliding plates away from each other, thereby achieving plugging of the embedded groove position and the expansion position.

[0034] In a second aspect, the application provides a construction method of a building expansion joint waterproof structure, which adopts the following technical solution:

[0035] The construction method of the building expansion joint waterproof structure adopts the building expansion joint waterproof structure, and includes the following steps:

[0036] S1, slotting the building main body;

[0037] S2, installing the fire barrier;

[0038] S3, laying the water stop belt: the overlapping portions on both sides of the water stop belt are laid on the bottom walls of the embedded grooves on both sides of the expansion joint, and the excess portions of the water stop belt are embedded into the expansion joint;

[0039] S4, installing the elastic buckle plate: the plug-in section and the plug-in groove are matched and plugged in, so that the elastic buckle plate is installed in the embedded groove, and the extension section pushes the water stop belt against the bottom wall of the embedded groove;

[0040] S5, installing the locking assembly: the sliding plate and the fixed plate are opposite to the gap between the two elastic buckle plates, force is exerted on the sliding plate to make the sliding plate shrink into the fixed plate, downward force is exerted, the sliding plate and the fixed plate are embedded between the two elastic buckle plates, when the sliding plate and the fixed plate move below the clamping portion, the compression spring automatically recovers, the sliding plate extends into the clamping gap along the installation gap, the limiting plate exerts force on the water stop belt to make the water stop belt fixed on the bottom wall of the embedded groove; at the same time, the guide spring recovers, the guide spring exerts force on the fixed plate, the fixed plate drives the sliding plate and the clamping protrusion to move upward, and the clamping protrusion is clamped into the clamping gap;

[0041] S6, filling the sealant.

[0042] By adopting the technical scheme, during the construction of the building expansion joint, first, the fire barrier is installed in the expansion joint, then the overlapping portions on both sides of the water stop belt are laid on the bottom wall of the fitting groove, and the excess portion of the water stop belt is embedded in the expansion joint; the worker then opens the insertion slot on the slot wall of the fitting groove through the cutting device, inserts the insertion portion of the elastic buckle plate into the insertion slot, and makes the elastic buckle plate abut against the surface of the water stop belt; force is applied to the two sliding plates, so that the sliding plates are retracted into the fixed plate, and when the distance between the two sliding plates away from each other is less than the gap between the two elastic buckle plates, force is applied downward, the sliding plates and the fixed plate are embedded between the two elastic buckle plates, when the sliding plates and the fixed plate move to below the clamping portion, the compression spring automatically recovers, the sliding plates extend into the clamping gap along the installation gap, the limiting plate applies force to the water stop belt, so that the water stop belt is fixed on the bottom wall of the fitting groove; at the same time, the guide spring recovers, the guide spring applies force to the fixed plate, the fixed plate drives the sliding plates and the clamping protrusions to move upward, and the clamping protrusions are clamped into the clamping gap; finally, the gap between the elastic buckle plate and the building main body is filled with sealing glue; by cooperating the elastic buckle plate and the locking assembly for installation, the construction efficiency of the building expansion joint waterproof structure is improved, and the waterproof effect of the building expansion joint is ensured.

[0043] To sum up, the present application includes at least one of the following beneficial technical effects:

[0044] 1. The designed building expansion joint waterproof structure is convenient to drive the two sliding plates away from each other through the expansion piece, so that the sliding plates cooperate with the fixed plate to block the expansion joint, improve the installation efficiency of the building expansion joint waterproof structure; at the same time, the limiting plate is convenient to push the water stop belt and the building main body to abut tightly through the adjusting piece, so that the position of the water stop belt is fixed; and the fixed plate is driven to move upward, so that the sliding plates and the elastic buckle plate are clamped tightly, and the connection performance of the sliding plates and the elastic buckle plate is ensured.

[0045] 2. The designed construction method of the building expansion joint waterproof structure is convenient to improve the construction efficiency of the building expansion joint waterproof structure by cooperating the elastic buckle plate and the locking assembly for installation, and the waterproof effect of the building expansion joint is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 is the overall structure schematic view of the building expansion joint waterproof structure of the embodiment 1 of the present application;

[0047] Figure 2 is the sectional view of the building expansion joint waterproof structure of the embodiment 1 of the present application;

[0048] Figure 3 is Figure 2 the enlarged schematic view of A part of

[0049] Explanation of reference signs: 1, building main body; 11, embedded groove; 12, plug-in groove; 2, expansion joint; 3, water stop belt; 31, lap joint part; 32, excess part; 4, locking assembly; 41, fixed plate; 42, sliding plate; 43, expansion piece; 431, compression spring; 44, clamping convex rib; 45, sealing rubber ring; 5, elastic buckling plate; 51, clamping part; 52, horizontal part; 53, connecting part; 531, vertical section; 532, inclined section; 533, extension section; 534, plug-in section; 535, clamping gap; 536, mounting gap; 54, sealing rubber gasket; 6, pushing assembly; 61, limiting plate; 62, adjusting piece; 621, guide rod; 622, guide spring; 623, limiting nut; 7, fire barrier belt. DETAILED DESCRIPTION

[0050] The following will be described in detail below with reference to the accompanying drawings. Figures 1-3 The application is further described in detail.

[0051] The embodiment of the application discloses a building expansion joint waterproof structure.

[0052] Referring to Figure 1 and Figure 2 A building expansion joint waterproof structure, comprising a water stop belt 3, a locking assembly 4, a pushing assembly 6 and two building main bodies 1, the two building main bodies 1 are provided with an expansion joint 2 therebetween, and the top wall of each of the two building main bodies 1 is provided with an embedded groove 11, the embedded groove 11 is communicated with the expansion joint 2; the water stop belt 3 comprises an excess part 32 and lap joint parts 31 located on both sides of the excess part 32 and connected integrally, the lap joint parts 31 are lapped on the bottom wall of the embedded groove 11, and the excess part 32 is embedded in the expansion joint 2; the groove wall of each embedded groove 11 is provided with an elastic buckling plate 5, and the locking assembly 4 is installed on the two elastic buckling plates 5, so as to block the expansion joint 2; when the building expansion joint waterproof structure is installed, the lap joint parts 31 are first lapped on the bottom wall of the embedded groove 11, then the elastic buckling plates 5 are installed on the groove wall of the embedded groove 11, so as to fix the position of the water stop belt 3, and then the locking assembly 4 is clamped on the two elastic buckling plates 5, so as to block the expansion joint 2, and meanwhile, the pushing assembly 6 is used to fix the water stop belt 3.

[0053] Referring to Figure 1 and Figure 2The locking assembly 4 is used for connecting two elastic buckle plates 5 to achieve the sealing of the expansion joint 2. The locking assembly 4 comprises a fixed plate 41, two sliding plates 42 and a plurality of expansion pieces 43. In the embodiment, the fixed plate 41 is hollow, and the sliding plates 42 can slide along the inner cavity of the fixed plate 41. The sliding plates 42 are located on both sides of the fixed plate 41, and the two sliding plates 42 are symmetrically arranged about the fixed plate 41. The water stop belt 3 is located between the bottom wall of the fitting groove 11 and the sliding plate 42. In order to improve the sealing performance between the fixed plate 41 and the sliding plate 42, a sealing rubber ring 45 is bonded on the inner cavity wall of the fixed plate 41, and the sealing rubber ring 45 is sealingly connected with the sliding plate 42 away from the fixed plate 41. The expansion piece 43 is installed between the two sliding plates 42, and the expansion piece 43 drives the two sliding plates 42 to move away from each other. The expansion piece 43 comprises a plurality of compression springs 431. In the application, the compression springs 431 can be 6, 8 or 10, as long as the stable connection of the two sliding plates 42 is achieved. The number of compression springs 431 is set according to the length of the expansion joint 2. The distance between adjacent two compression springs 431 is ensured to be 800-1200 mm. In the embodiment, the compression springs 431 are set to be 6. The six compression springs 431 are evenly distributed along the length direction of the expansion joint 2. One end of the compression spring 431 is clamped with one of the sliding plates 42, and the other end is clamped with the other sliding plate 42, so as to realize the stable connection of the two sliding plates 42.

[0054] With reference to Figure 2 and Figure 3 The elastic buckle plate 5 comprises a connecting portion 53, a horizontal portion 52 and a clamping portion 51 arranged in sequence. The connecting portion 53, the horizontal portion 52 and the clamping portion 51 are integrally connected. The projection of the connecting portion 53 along the vertical direction is larger than the projection of the clamping portion 51 along the vertical direction. The horizontal portion 52 is located above the connecting portion 53 and the clamping portion 51. The clamping portion 51 and the bottom wall of the fitting groove 11 leave an installation gap 536 for the sliding plate 42 to extend into. The connecting portion 53 is installed on the building body 1. The connecting portion 53 and the clamping portion 51 are provided with a clamping gap 535. The sliding plate 42 away from the fixed plate 41 is provided with a clamping convex edge 44 embedded in the clamping gap 535. The sliding plate 42 is integrally connected with the clamping convex edge 44.

[0055] With reference to Figure 2 and Figure 3The connecting part 53 comprises a vertical section 531, an inclined section 532, an extension section 533, and at least one insertion section 534. The vertical section 531, the inclined section 532, and the extension section 533 are sequentially connected, and the vertical section 531, the inclined section 532, and the extension section 533 are integrally connected. In the embodiment, the insertion section 534 can be two, three, or four, as long as the stable connection between the elastic buckling plate 5 and the building body 1 is achieved. In the embodiment, the insertion section 534 is three, and the three insertion sections 534 are uniformly distributed along the height direction of the vertical section 531, and each insertion section 534 is arranged along the length direction of the connecting part 53, and the insertion section 534 is arranged on the side of the inclined section 532 away from the vertical section 531. The building body 1 is provided with an insertion slot 12 for inserting the insertion section 534, and the insertion slot 12 is in communication with the fitting slot 11. By inserting the insertion section 534 into the insertion slot 12, the stable connection between the elastic buckling plate 5 and the building body 1 is achieved. A sealing rubber 54 is arranged between the fitting slot 11 and the vertical section 531, the sealing rubber 54 is bonded to the vertical section 531, and the sealing rubber 54 is located between the adjacent two insertion sections 534. The vertical section 531 is arranged in parallel with the clamping part 51, the inclined section 532 is located below the horizontal part 52, and the inclined section 532 is arranged from high to low along the side of the vertical section 531 to the side of the expansion joint 2. The water stop 3 is located between the inclined section 532 and the bottom wall of the fitting slot 11, and the inclined section 532 abuts against the water stop 3 and the bottom wall of the fitting slot 11. The extension section 533 is connected to the end of the inclined section 532 away from the vertical section 531, the extension section 533 is arranged horizontally, and the extension section 533 abuts against the water stop 3. In addition, in order to ensure the sealing performance between the water stop 3 and the building body 1, a plurality of limiting ribs are arranged on the bottom wall of the extension section 533. In the application, the limiting ribs can be two, three, or four, as long as the limiting ribs abut against the water stop 3 and the building body 1 to achieve sealing. In the embodiment, the limiting ribs are arranged as two, and the two limiting ribs are uniformly distributed along the width direction of the extension section 533, and each limiting rib is distributed along the length direction of the extension section 533. The limiting ribs locally apply force to the water stop 3, thereby improving the sealing performance between the water stop 3 and the building body 1.

[0056] Referring to Figure 1 and Figure 2The push assembly 6 is used for fixing the water stop belt 3, and the push assembly 6 comprises a limiting plate 61 and a plurality of adjustable members 62. The limiting plate 61 is arranged opposite to the expansion joint 2, the plurality of adjustable members 62 are uniformly distributed along the length direction of the expansion joint 2, and the adjustable members 62 drive the limiting plate 61 to abut against the water stop belt 3. The limiting plate 61 gradually decreases in cross-sectional area from the end close to the guide rod 621 to the end away from the guide rod 621, the large-end cross-sectional width of the limiting plate 61 is greater than the width of the expansion joint 2, and the small-end cross-sectional width of the limiting plate 61 is less than the width of the expansion joint 2. In the embodiment, the cross section of the limiting plate 61 is in the shape of an isosceles trapezoid or an isosceles triangle, so as to facilitate the limiting plate 61 to extend into the expansion joint 2. In the application, the adjustable members 62 can be 6, 8 or 10, as long as the limiting plate 61 can seal and block the expansion joint 2 and abut against the elastic buckle plate 5. The adjustable member 62 comprises a limiting nut 623, a guide rod 621 and a guide spring 622. One end of the guide rod 621 is fixedly connected with the fixed plate 41, and in the embodiment, the guide rod 621 is welded with the fixed plate 41. The limiting plate 61 is provided with a through hole for the guide rod 621 to pass through, and the guide rod 621 slides through the through hole of the limiting plate 61. In addition, the through hole is in the shape of a waist in the embodiment, and the through hole is arranged along the width direction of the limiting plate 61, so as to facilitate the limiting plate 61 to slightly incline when the building main body 1 slightly deforms. One end of the guide rod 621 extending out of the limiting plate 61 is threadedly connected with the limiting nut 623, so as to adjust the height of the limiting plate 61 according to the depth of the embedded groove 11. The guide spring 622 is located between the fixed plate 41 and the limiting plate 61, and the guide spring 622 drives the limiting plate 61 to move away from the fixed plate 41. In the embodiment, the guide spring 622 is sleeved on the guide rod 621, one end of the guide spring 622 abuts against the limiting plate 61, and the other end is clamped with the fixed plate 41.

[0057] The implementation principle of the building expansion joint waterproof structure of the embodiment of the application is as follows: first, the fire barrier 7 is installed in the expansion joint 2, then the overlapping part 31 of the water stop belt 3 is laid on the bottom wall of the fitting groove 11 on the two sides of the expansion joint 2, and the excess part 32 of the water stop belt 3 is embedded into the expansion joint 2, then the insertion section 534 is opposite to the insertion groove 12, the insertion section 534 of the elastic buckle plate 5 is inserted into the insertion groove 12, and the sealing rubber gasket 54 is tightly attached to the groove wall of the fitting groove 11 of the building main body 1, then the sliding plate 42 is opposite to the gap between the two elastic buckle plates 5, force is applied to the sliding plate 42, the two sliding plates 42 are close to each other, and move to the side that the distance between the two sliding plates 42 is less than the distance between the two elastic buckle plates 5, and the compression spring 431 is compressed; during the downward movement of the fixed plate 41, the fixed plate 41 applies force to the guide rod 621, the guide rod 621 drives the guide spring 622 and the limiting plate 61 to move downward, when the limiting plate 61 contacts the water stop belt 3, the fixed plate 41 drives the guide rod 621 and the limiting plate 61 to continue to move downward, the building main body 1 and the water stop belt 3 apply a reaction force to the limiting plate 61, the guide spring 622 is compressed, the fixed plate 41 and the two sliding plates 42 move downward along the gap between the two elastic buckle plates 5, and when the sliding plate 42 is opposite to the installation gap 536, the compression spring 431 pushes the sliding plate 42 and the clamping convex edge 44 to extend into the clamping gap 535.

[0058] Then, the force applied to the fixed plate 41 is stopped, the guide spring 622 recovers, the guide spring 622 pushes the fixed plate 41 to move upward, the clamping convex edge 44 is clamped in the clamping gap 535 between the connecting part 53 and the clamping part 51, the sliding plate 42 and the bottom wall of the clamping part 51 are tightly attached to each other by the reaction force of the guide spring 622, the sliding plate 42 and the fixed plate 41 seal the fitting groove 11 and the expansion joint 2; finally, the gap between the elastic buckle plate 5 and the building main body 1 is sealed by the sealing rubber.

[0059] The embodiment of the application also discloses a construction method of the building expansion joint waterproof structure.

[0060] The construction method of the building expansion joint waterproof structure adopts the building expansion joint waterproof structure, and comprises the following steps.

[0061] S1, groove opening of the building main body 1: measuring and marking the fitting groove 11 on the building main body 1, then opening the fitting groove 11, measuring and marking the insertion groove 12 on the groove wall of the fitting groove 11, then opening the insertion groove 12, and cleaning the groove bodies of the fitting groove 11 and the insertion groove 12;

[0062] S2, installation of the fire barrier 7;

[0063] S3, laying of the waterstop 3: the overlapping part 31 of the waterstop 3 is overlapped on the bottom wall of the fitting groove 11, and then the excess part 32 of the waterstop 3 is embedded into the expansion joint 2;

[0064] S4, installation of the elastic buckle plate 5: the insertion segment 534 is opposite to the insertion groove 12, the insertion segment 534 of the elastic buckle plate 5 is inserted into the insertion groove 12, so that the sealing rubber 54 is tightly fitted with the groove wall of the fitting groove 11, and the extension segment 533 of the elastic buckle plate 5 is pushed against the waterstop 3 and the bottom wall of the fitting groove 11;

[0065] S5, installation of the locking assembly 4: the sliding plate 42 is opposite to the gap between the two elastic buckle plates 5, the sliding plate 42 is forced to shrink into the inner cavity of the fixed plate 41, and then the sliding plate 42 and the fixed plate 41 are embedded between the two elastic buckle plates 5, when the sliding plate 42 and the fixed plate 41 move to the lower side of the clamping part 51, the force applied to the sliding plate 42 is stopped, the compression spring 431 automatically recovers, the compression spring 431 pushes the sliding plate 42 and the clamping convex edge 44 to extend into the clamping gap 535 along the installation gap 536; the guide rod 621 drives the guide spring 622 and the limiting plate 61 to continue to move downward, when the limiting plate 61 contacts the waterstop 3, the limiting plate 61 applies force to the waterstop 3, so that the waterstop 3 is fixed on the bottom wall of the fitting groove 11; at the same time, the guide spring 622 recovers, the guide spring 622 applies force to the fixed plate 41, the fixed plate 41 drives the sliding plate 42 and the clamping convex edge 44 to move upward, and the clamping convex edge 44 is clamped into the clamping gap 535;

[0066] S6, filling of the sealing rubber: the gap between the elastic buckle plate 5 and the building body 1 is sealed and filled.

[0067] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A waterproof structure of a building expansion joint, comprising two building main bodies (1), an expansion joint (2) being provided between the two building main bodies (1), characterized in that, Also include the water stop (3) and locking assembly (4); Two top walls of the building body (1) are provided with fitting grooves (11), and the fitting grooves (11) are communicated with the expansion joints (2), and the water stops (3) are overlapped on the two fitting grooves (11) respectively; The locking assembly (4) is used for blocking the expansion joint (2), and the locking assembly (4) comprises a fixed plate (41), two sliding plates (42) and a telescopic part (43); Two sliding plates (42) are located on both sides of the fixed plate (41), and two sliding plates (42) are symmetrically arranged about the fixed plate (41), the sliding plate (42) is slidably connected with the fixed plate (41), the water stop (3) is located between the bottom wall of the fitting groove (11) and the sliding plate (42), and the water stop (3) extends into the expansion joint (2); The telescopic part (43) is installed between the two sliding plates (42), and the telescopic part (43) drives the two sliding plates (42) to move away from each other; The fitting groove (11) is provided with an elastic buckling plate (5) on the groove wall, the elastic buckling plate (5) comprises an integral connecting part (53), a horizontal part (52) and a clamping part (51), the connecting part (53) is installed on the building body (1), the connecting part (53) and the clamping part (51) are provided with a clamping gap (535), and the sliding plate (42) is provided with a clamping convex edge (44) fitted in the clamping gap (535) away from the fixed plate (41) side; The clamping part (51) and the bottom wall of the fitting groove (11) are provided with an installation gap (536) for the sliding plate (42) and the clamping convex edge (44) to extend into.

2. The waterproof structure of an architectural expansion joint according to claim 1, characterized in that: The connecting part (53) comprises an integral vertical section (531) and an inclined section (532), the vertical section (531) is connected with the building body (1), and the vertical section (531) is parallel to the clamping part (51), the inclined section (532) is located below the horizontal part (52), and the inclined section (532) is inclined from high to low from one side of the vertical section (531) to one side of the expansion joint (2), the water stop (3) is located between the inclined section (532) and the bottom wall of the fitting groove (11), and the inclined section (532) pushes the water stop (3) and the bottom wall of the fitting groove (11) tightly.

3. The waterproof structure of an expansion joint of a building according to claim 2, wherein: The connecting part (53) further comprises at least one insertion section (534), the insertion section (534) is arranged on the side of the inclined section (532) away from the vertical section (531), the building body (1) is provided with an insertion slot (12) for inserting the insertion section (534), and the insertion slot (12) is communicated with the fitting groove (11).

4. The waterproof structure of an expansion joint of a building according to claim 2, wherein: The connecting part (53) further comprises an extension section (533) fixedly connected with the inclined section (532) away from one end of the vertical section (531), and the extension section (533) abuts against the waterstop belt (3).

5. The waterproof structure of an expansion joint of a building according to claim 1, wherein: The fixed plate (41) is provided with a pushing assembly (6) for fixing the waterstop belt (3). The pushing assembly (6) comprises a limiting plate (61) and a plurality of adjustable members (62) which are uniformly distributed along the length direction of the expansion joint (2), the limiting plate (61) is arranged opposite to the expansion joint (2), and the adjustable members (62) drive the limiting plate (61) to abut against the waterstop belt (3).

6. The waterproof structure of an expansion joint of a building according to claim 5, wherein: The adjustable member (62) comprises a limiting nut (623), a guide rod (621) and a guide spring (622). One end of the guide rod (621) is fixedly connected with the fixed plate (41), and the other end is arranged through the limiting plate (61) and is in sliding connection with the limiting plate (61). One end of the guide rod (621) extending out of the limiting plate (61) is in threaded connection with the limiting nut (623). The guide spring (622) is located between the fixed plate (41) and the limiting plate (61), and drives the limiting plate (61) to move away from the fixed plate (41).

7. The waterproof structure of an architectural expansion joint according to claim 6, characterized in that: The limiting plate (61) gradually decreases in cross-sectional area from the end close to the guide rod (621) to the end away from the guide rod (621), and the maximum cross-sectional area of the limiting plate (61) is greater than the cross-sectional area of the expansion joint (2).

8. The waterproof structure of an expansion joint of a building according to claim 1, wherein: The expansion member (43) comprises a plurality of compression springs (431), one end of the compression spring (431) is connected with the sliding plate (42), and the other end is connected with another sliding plate (42).

9. A construction method of a waterproof structure of a building expansion joint, characterized by, The building expansion joint waterproof structure of any one of claims 1-8 comprises the following steps: S1, groove the building body (1); S2, install the fire barrier (7); S3, lay the waterstop belt (3): the overlapping parts (31) on both sides of the waterstop belt (3) are laid on the bottom walls of the fitting grooves (11) on both sides of the expansion joint (2), and the excess part of the waterstop belt (3) is embedded into the expansion joint (2); S4, install the elastic buckle plate (5): the plug-in section (534) is plug-in connected with the plug-in groove (12), so that the elastic buckle plate (5) is installed in the fitting groove (11), and the extension section (533) abuts against the waterstop belt (3) and the bottom wall of the fitting groove (11); S5, the locking assembly (4) is installed: the sliding plate (42) and the fixed plate (41) are opposite the gap between the two elastic buckling plates (5), force is applied to the sliding plate (42), so that the sliding plate (42) is retracted into the fixed plate (41), force is applied downward, the sliding plate (42) and the fixed plate (41) are embedded between the two elastic buckling plates (5), when the sliding plate (42) and the fixed plate (41) move below the clamping part (51), the compression spring (431) automatically recovers, the sliding plate (42) extends into the clamping gap (535) along the installation gap (536), the limiting plate (61) applies force to the water stop belt (3), so that the water stop belt (3) is fixed on the bottom wall of the embedded groove (11); at the same time, the guide spring (622) recovers, the guide spring (622) applies force to the fixed plate (41), the fixed plate (41) drives the sliding plate (42) and the clamping convex rib (44) to move upward, and moves to the clamping convex rib (44) clamped to the clamping gap (535); S6, the sealant is filled.

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