A CB-type rubber waterstop and delay arc matching structure applied to deformation joints

Abstract

The present invention discloses a CB-type rubber waterstop and delay arc cooperation structure applied to deformation joints, which includes a waterstop and a delay arc that penetrate the deformation joint along the width direction of the deformation joint. The delay arc is arranged below the waterstop; the waterstop includes a hollow tube, and both ends of the hollow tube are connected with a matrix. The hollow tube is arranged along the length direction of the deformation joint, and the matrix is buried inside both sides of the deformation joint; the delay arc includes a deformation section, and both ends of the deformation section are connected with a fastening section. The deformation section is in the shape of a downward concave semi-circular arc sheet and is arranged along the length direction of the deformation joint. The fastening section is buried inside both sides of the deformation joint; when uneven settlement occurs in the building structures on both sides of the deformation joint, the deformation section and the hollow tube deform synchronously, and the deformation section reaches the critical state of fracture prior to the hollow tube. The present invention can effectively delay the tearing of the CB-type rubber waterstop when uneven settlement occurs in the building structures on both sides of the deformation joint.

Description

Technical Field

[0001] The present invention relates to the technical field of building waterproofing, and particularly to a CB-type rubber waterstop and delay arc matching structure applied to deformation joints. Background Art

[0002] Rubber waterstops can be widely used in various concrete structures. During construction, due to reasons such as the inability to continuously pour concrete, or the deformation of the foundation, or the thermal expansion and contraction of concrete components caused by temperature changes, deformation joints and construction joints are often left during the pouring of concrete. In order to prevent leakage problems in deformation joints, rubber waterstops are commonly used at the positions of deformation joints for waterproofing. It can not only prevent groundwater or external water from leaking into the building structure, but also prevent the water inside the building from leaking to the outside.

[0003] The embedded rubber waterstop, also known as the central rubber waterstop or internal embedded rubber waterstop, is a waterstop provided inside concrete such as concrete deformation joints and expansion joints. It utilizes the characteristics of high elasticity and compression deformation of rubber itself to produce elastic deformation under various loads, thereby playing an effective role in fastening and sealing, preventing water leakage and seepage of building structures, and buffering shock. The currently used embedded rubber waterstops are mainly CB-type rubber waterstops, and its specific structure is a structure in which a hollow tube is connected to a matrix at both ends. Reinforcing connection structures such as convex ribs are often provided on the matrix, and the hollow tube is placed in the deformation joint to resist deformation.

[0004] However, in actual projects, damages such as punctures and tears of rubber waterstops often occur. The reasons are analyzed as follows: First, the importance of waterproof engineering is ignored, and the atlas and standards for waterproof design of expansion joints are directly applied. The design unit does not consider the on-site environment. The consequence of directly applying the atlas is that the waterproof effect fails to meet the design requirements. For example, when designing the basement waterproofing, the extrusion effect on the expansion joint waterstop is not considered, resulting in the fracture of the waterstop and leakage. Second, the design does not consider the uneven settlement of the building, resulting in the tearing of the waterstop. When performing structural calculations in the design, the uneven settlement at the expansion joint is not considered. When setting the waterstop, the waterstop is fractured and the waterproof effect is poor.

[0005] The maximum settlement difference proposed in the Technical Code for Deformation Joints of Concrete Structures in Water Supply and Drainage Engineering should not be greater than 30 mm. Generally, it is the uneven settlement of building structures. This settlement is inevitable except by strengthening the structure foundation, and it cannot be blocked due to the large volume of building structures. Beyond 30 mm, the uneven settlement of building structures has converged, and the resulting settlement difference is extremely small. Taking the deformation joint at the bottom of a pool as an example, when the settlement difference exceeds 30 mm, the subsequent settlement is mainly caused by the minor settlement of the building structure after the pool is filled with water and the compaction of the soil layer after the groundwater level drops. For the existing CB type rubber waterstop material, due to the limitations of the material properties of the waterstop itself, the rubber material affects its service life under high stress conditions, and the deformation should not be too large. Even if all human factors are avoided and a careful design is carried out, there is still a great risk of tearing of the waterstop, especially when the settlement difference exceeds 30 mm. Therefore, there is an urgent need to develop a combined structure of a CB type rubber waterstop and a delay arc applied to deformation joints to delay the tearing of the waterstop. Summary of the Invention

[0006] The purpose of the present invention is to provide a combined structure of a CB type rubber waterstop and a delay arc applied to deformation joints. The present invention can effectively delay the tearing of the CB type rubber waterstop when uneven settlement occurs on both sides of the deformation joint in the building structure.

[0007] The technical solution of the present invention: A combined structure of a CB type rubber waterstop and a delay arc applied to deformation joints, including a waterstop and a delay arc that penetrate the deformation joint along the width direction of the deformation joint. The delay arc is arranged below the waterstop; the waterstop includes a hollow tube, and both ends of the hollow tube are connected with a matrix. The hollow tube is arranged along the length direction of the deformation joint, and the matrix is buried in both sides of the deformation joint; the delay arc includes a deformation section, and both ends of the deformation section are connected with a fastening section. The deformation section is in the shape of a downward concave semi-circular arc sheet and is arranged along the length direction of the deformation joint. The fastening section is buried in both sides of the deformation joint; when uneven settlement occurs on both sides of the deformation joint in the building structure, the deformation section deforms synchronously with the hollow tube, and the deformation section reaches the critical state of fracture prior to the hollow tube.

[0008] Compared with the prior art, the beneficial effects of the present invention are reflected in that: by arranging a delay arc below the water stop belt, the present invention can delay the tearing of the water stop belt when uneven settlement occurs on both sides of the building structure at the deformation joint. Specifically, the delay arc is a structure with a deformation section spliced with fastening sections at both ends. The fastening sections are buried in the building structure, and the deformation section is located in the deformation joint. When uneven settlement occurs on both sides of the building structure at the deformation joint, the deformation section will deform synchronously with the hollow tube of the water stop belt. Before the hollow tube reaches the critical state of fracture, the deformation section first reaches the critical state of fracture, that is, the deformation section will be slowly straightened from the original semi-circular arc shape to a tight state until it breaks. In this process, it can not only ensure the reasonable deformation of the deformation joint, but also trigger the protection mechanism in the case of excessive deformation, giving play to a structural stiffness far exceeding that of the water stop belt to resist deformation. For deformation joints with a maximum settlement difference less than 30 mm, the present invention can protect the CB-type rubber water stop belt from tearing damage or being in a high stress state; for deformation joints with a maximum settlement difference greater than 30 mm, the present invention can effectively delay the tearing of the CB-type rubber water stop belt.

[0009] In the above-mentioned CB-type rubber water stop belt and delay arc matching structure applied to the deformation joint, the outer diameter of the semi-circular arc of the deformation section is equal to the outer diameter of the hollow tube, and both ends of the deformation section and both ends of the hollow tube in the width direction of the deformation joint are tangent to the two side walls of the deformation joint.

[0010] In the above-mentioned CB-type rubber water stop belt and delay arc matching structure applied to the deformation joint, the fastening section includes an anchoring section and a tightening section. One end of the anchoring section is connected to the deformation section, and the other end is connected to the tightening section; steel bars are buried on both sides of the deformation joint where the fastening section is located, and the tightening section is wound and connected to the steel bars.

[0011] In the above-mentioned CB-type rubber water stop belt and delay arc matching structure applied to the deformation joint, a number of through anchoring holes are provided on the anchoring section, and a number of anchoring nails are also connected to the anchoring section.

[0012] In the above-mentioned CB-type rubber water stop belt and delay arc matching structure applied to the deformation joint, the tightening section is provided with a tightening chute and a fastening nail. After the tightening section is wound and connected to the steel bar, the fastening nail is buckled into the tightening chute for connection.

[0013] In the above-mentioned CB-type rubber water stop belt and delay arc matching structure applied to the deformation joint, a number of reinforcing rib lines are provided on both the anchoring section and the deformation section.

[0014] In the above-mentioned CB-type rubber waterstop and delayed arc matching structure applied to deformation joints, a delayed trigger structure is provided between the matrix on both sides of the deformation joint and the fastening section. The delayed trigger structure includes a semi-enclosed box body, which is rectangular in shape, with its top surface and one of its side surfaces open to the outside. A support body closely attached to the deformation joint is provided inside the semi-enclosed box body. The support body supports the matrix above the semi-enclosed box body through the open top surface. A slider is provided between the support body and the inner bottom of the semi-enclosed box body. The inside of the semi-enclosed box body is connected to the deformation joint through the open side surface. A tightened steel wire is connected between the slider and the midpoint of the semi-circular arc of the deformation section.

[0015] In the above-mentioned CB-type rubber waterstop and delayed arc matching structure applied to deformation joints, when uneven settlement occurs in the building structures on both sides of the deformation joint, the height of the midpoint of the semi-circular arc of the deformation section gradually decreases. One of the sliders on the side of the deformation joint slides towards the side where the deformation joint is located under the action of the steel wire. Before the deformation section reaches the critical state of fracture, the connection between the slider and the support body is disengaged, and the support body drops a certain distance and loses the support effect on the matrix above it.

[0016] In the above-mentioned CB-type rubber waterstop and delayed arc matching structure applied to deformation joints, a hollow wire groove is provided on the lower surface of the matrix above the support body.

[0017] In the above-mentioned CB-type rubber waterstop and delayed arc matching structure applied to deformation joints, a layer of rubber pad is provided on the upper surface of the matrix above the support body. Description of the Drawings

[0018] Figure 1 is the structural schematic diagram of the present invention;

[0019] Figure 2 is the internal structural sectional view of the delayed arc;

[0020] Figure 3 is the top view of the delayed arc;

[0021] Figure 4 is the structural schematic diagram of the connection between the tightening section and the steel bar;

[0022] Figure 5 is the shape change process diagram of the waterstop and the delayed arc during the settlement process;

[0023] Figure 6 is the state schematic diagram before the settlement of the building structures on both sides of the deformation joint;

[0024] Figure 7 is the state schematic diagram when the building structures on both sides of the deformation joint settle;

[0025] Figure 8It is a schematic diagram when the deformation section of the delay arc reaches the critical state of tightness during the settlement process.

[0026] Reference signs: 1 - deformation joint, 2 - waterstop, 3 - delay arc, 4 - steel bar, 5 - delay trigger structure, 21 - hollow tube, 22 - matrix, 31 - deformation section, 32 - fastening section, 33 - reinforcing rib line, 51 - semi - enclosed box body, 52 - support body, 53 - slider, 54 - steel wire, 321 - anchoring section, 322 - tightening section, 2201 - wire groove, 2202 - rubber pad, 3211 - anchoring hole, 3212 - anchor nail, 3221 - tightening chute, 3222 - fastening nail. Detailed implementation manners

[0027] The present invention will be further described below in conjunction with the drawings and embodiments, but it shall not be used as a basis for limiting the present invention.

[0028] Embodiment: A CB - type rubber waterstop and delay arc matching structure applied to a deformation joint, the structure is as Figures 1 to 4 shown, including a waterstop 2 and a delay arc 3 that penetrate the deformation joint 1 along the width direction of the deformation joint 1, and the delay arc 3 is arranged below the waterstop 2; the waterstop 2 includes a hollow tube 21, both ends of the hollow tube 21 are connected with a matrix 22, the hollow tube 21 is arranged along the length direction of the deformation joint 1, and the matrix 22 is buried in both sides of the deformation joint 1; the delay arc 3 includes a deformation section 31, both ends of the deformation section 31 are connected with a fastening section 32, the deformation section 31 is in the shape of a concave semi - circular sheet, the deformation section 31 is arranged along the length direction of the deformation joint 1, and the fastening section 32 is buried in both sides of the deformation joint 1; when the building structures on both sides of the deformation joint 1 undergo uneven settlement, the deformation section 31 and the hollow tube 21 deform synchronously, and the deformation section 31 reaches the critical state of fracture prior to the hollow tube 21.

[0029] Reference Figure 5 , shows three states of the shape change of the waterstop and the delay arc during the settlement process. State one is the state before the building structures on both sides of the deformation joint 1 settle, the waterstop 2 and the delay arc 3 are both in a straight state, the cross - section of the hollow tube 21 shows a regular circular shape, and the cross - section of the deformation section 31 is semi - circular; in state two, the hollow tube 21 is gradually flattened, and at the same time, the deformation section 31 of the delay arc 3 also deforms from a semi - circular shape to a crescent shape. At this time, the deformation section 31 is slightly bent and has not reached the tight state; in state three, the hollow tube 21 is flattened more relative to state two, but still has not reached the critical state of tearing, while the deformation section 31 of the delay arc 3 has been almost pulled into a straight line (it can be considered that the delay arc 3 reaches the critical state of fracture). At this time, the deformation section 31 is tightened and starts to bear force, thereby playing a role in delaying the stretching of the hollow tube 21.

[0030] Preferably, the delay arc 3 is a thin - sheet member, the material is Q345, the thickness is 0.5 mm, and it has relatively high strength and ductility.

[0031] Preferably, the water stop 2 is of an integrally formed structure, that is, the hollow tube 21 and the base 22 are formed synchronously. Among them, convex ribs protruding outward are provided on the upper and lower surfaces of the base 22, and the convex ribs can ensure the connection strength when the water stop 2 is combined with the concrete.

[0032] Preferably, the outer diameter of the semi-circular arc of the deformation section 31 is equal to the outer diameter of the hollow tube 21, and both outer diameters are 30 mm, which can ensure that the deformation section 31 and the hollow tube 21 deform synchronously. Both ends of the deformation section 31 in the width direction of the deformation joint 1 and both ends of the hollow tube 21 in the width direction of the deformation joint 1 are tangent to the two side walls of the deformation joint 1. That is, the intersections of the two side walls of the deformation joint 1 with the deformation section 31 and the hollow tube 21 serve as the fixed ends of the deformation of the deformation section 31 and the hollow tube 21. Combining the outer diameter of the semi-circular arc of the deformation section 31 being equal to the outer diameter of the hollow tube 21 can ensure that the deformation section 31 and the hollow tube 21 deform synchronously to the greatest extent. Since the material of the deformation section 31 is Q345 and the material of the hollow tube 21 is rubber, the deformation section 31 will inevitably reach the critical state of fracture before the hollow tube 21, and there is no need to worry about the water stop 2 being torn before the delay arc 3 breaks.

[0033] Preferably, the fastening section 32 includes an anchoring section 321 and a tightening section 322. One end of the anchoring section 321 is connected to the deformation section 31, and the other end is connected to the tightening section 322; steel bars 4 are buried inside both sides of the deformation joint 1 where the fastening section 32 is located, and the tightening section 322 is wound and connected to the steel bars 4 to ensure the connection strength when the fastening section 32 is combined with the concrete, and at the same time can strictly ensure that the intersections of the two side walls of the deformation joint 1 with the deformation section 31 serve as the fixed ends when the deformation section 31 deforms.

[0034] Preferably, the anchoring section 321 has a length of 180 mm and a thickness of 0.5 mm, and has high structural strength; the tightening section 322 has a length of 70 mm and a thickness of 0.15 mm, and has good flexibility.

[0035] Preferably, a number of through anchoring holes 3211 are provided on the anchoring section 321, and a number of anchoring nails 3212 are also connected to the anchoring section 321, which can enhance the connection strength when the fastening section 32 is combined with the concrete.

[0036] Preferably, the tightening section 322 is provided with a tightening chute 3221 and a fastening nail 3222. After the tightening section 322 is wound and connected to the steel bar 4, the fastening nail 3222 is buckled into the tightening chute 3221 for connection to ensure that the tightening section 322 can be firmly connected after being wound around the steel bar 4.

[0037] Preferably, the width of the tightening chute 3221 is 4 mm, the diameter of the fastening cap of the fastening nail 3222 is 5 mm, and the fastening neck is 3.4 mm. The fastening nail 3222 is pressed into the tightening chute 3221 to play a fixing role.

[0038] Preferably, a plurality of reinforcing rib lines 33 are provided on both the anchoring section 321 and the deformation section 31 to improve the structural strength of the delay arc 3 itself.

[0039] Reference Figures 6 to 8 , a delay trigger structure 5 is provided between the matrix 22 on both sides of the deformation joint 1 and the fastening section 32. The delay trigger structure 5 includes a semi-surrounding box body 51, which is rectangular in shape, with its top surface and one of its side surfaces open to the outside. Inside the semi-surrounding box body 51, there is a support body 52 closely attached to the deformation joint 1. The support body 52 supports the matrix 22 above the semi-surrounding box body 51 through the open top surface. A slider 53 is provided between the support body 52 and the inner bottom of the semi-surrounding box body 51. The inside of the semi-surrounding box body 51 is connected to the deformation joint 1 through the open side surface. A tightened steel wire 54 is connected between the slider 53 and the midpoint of the semi-circular arc of the deformation section 31.

[0040] Preferably, when uneven settlement occurs in the building structures on both sides of the deformation joint 1, the height of the midpoint of the semi-circular arc of the deformation section 31 gradually decreases. One of the sliders 53 on one side of the deformation joint 1 slides towards the side where the deformation joint 1 is located under the action of the steel wire 54. Before the deformation section 31 reaches the critical state of fracture, the connection between the slider 53 and the support body 52 is disengaged, and the support body 52 drops a certain distance and loses the support effect on the matrix 22 above it.

[0041] If the delay trigger structure 5 is not designed in the present invention, the space between the matrix 22 and the fastening section 32 will be filled with concrete. Therefore, the delay trigger structure 5 firstly plays a supporting role to support the matrix 22 above it, avoiding the collapse of the matrix 22 due to uneven stress during concrete pouring, which may cause the matrix 22 to pull the hollow tube 21 towards both sides in advance when the water stop belt 2 is embedded, so that the hollow tube 21 cannot form a complete circle and reaches a certain amount of deformation before the building structures on both sides of the deformation joint 1 settle.

[0042] Secondly, the greater role of the delay trigger structure 5 is that when the delay arc 3 completes its delay function (the delay arc 3 is broken after completing the delay function), at this time, the settlement amount is already relatively large. The slider 53 disengages from the support body 52 under the action of the steel wire 54, and the support body 52 drops to the bottom of the semi-surrounding box body 51. At the same time, the matrix 22 above the support body 52 will also tilt downward and deform under the action of the deformation force of the hollow tube 21 due to the loss of support. The two ends of the original deformation fixed end of the hollow tube 21 were both located at the intersection of the hollow tube 21 and the side wall of the deformation joint 1. At this time, one of the deformation fixed ends changes and moves from the side wall of the deformation joint 1 to the internal space on one side of the deformation joint 1. It can be regarded as increasing the deformation amount of the hollow tube 21. Therefore, after the delay arc 3 is broken, the downwardly tilted part of the matrix 22 can play a secondary delay role, effectively delaying the tearing of the water stop belt 2. ReferenceFigure 8 。

[0043] The reason for setting the delay trigger structures 5 on both sides of the deformation joint 1 in the present invention is that it is impossible to predict which side will settle relative to the other side during the construction of the deformation joint 1. Therefore, the delay trigger structures 5 need to be set on both sides. When settlement occurs, the steel wires 54 on both sides are in a taut state. Therefore, only one side of the delay trigger structure 5 will play the role of secondary delay, that is, the delay trigger structure 5 on the side with a relatively small settlement amount will play the role of secondary delay, while the delay trigger structure 5 on the side with a relatively large settlement amount will change from a taut state to a relaxed state as the steel wire 54 sinks, thus losing its function.

[0044] Preferably, a hollow wire groove 2201 is provided on the lower surface of the base body 22 above the support body 52. After the slider 53 is disconnected from the support body 52, the support body 52 may be adsorbed on the lower surface of the base body 22. The existence of the wire groove 2201 can prevent the support body 52 from being adsorbed on the lower surface of the base body 22, which helps the support body 52 to fall.

[0045] When the present invention is applied to the actual working condition, when the steel wire 54 pulls the slider 53, the support body 52 may follow. At this time, the hollow tube 21 can play a role in limiting the support body 52 to prevent the support body 52 from falling into the deformation joint 1 before detaching from the slider 53.

[0046] When the present invention is applied to the actual working condition, since the other end of the steel wire 54 acts on the midpoint of the semi-circular arc of the deformation section 31, at the initial stage of settlement on both sides of the deformation joint 1, the phenomenon that the slider 53 cannot be pulled may occur, and the deformation section 31 is pulled slightly upward convex, but this process will not affect the subsequent work of the delay arc 3. As the delay arc 3 gradually tightens, the subsequent slider 53 will be pulled to detach from the support body 52.

[0047] Preferably, a rubber pad 2202 is provided on the upper surface of the base body 22 above the support body 52. Since the base body 22 is poured with concrete on both the upper and lower sides, the absence of the rubber pad 2202 may cause the base body 22 to adhere firmly to the concrete. Thus, after the slider 53 is detached from the support body 52, the base body 22 above the support body 52 cannot tilt and deform downward, while the existence of the rubber pad 2202 can well solve this problem.

[0048] Preferably, the support body 52 is in a long strip shape, specifically a structure formed by splicing a cuboid and a semi-cylindrical body up and down, and its lower bottom surface is an arc surface. When the slider 53 and the support body 52 move relative to each other to a certain extent, they can be detached.

[0049] Preferably, a slideway is provided at the bottom of the semi-surrounding box body 51, and the slider 53 is stuck in the slideway. One end of the slideway is an open structure, which can enable the slider 53 to finally fall into the deformation joint 1.

[0050] Preferably, the outer bottom of the semi-enclosing box body 51 is attached to the upper surface of the anchoring section 321. There is a concave on the anchoring section 321, and the outer bottom of the semi-enclosing box body 51 is snapped into the concave. At the same time, there is also a concave on the lower surface of the base body 22 corresponding to the upper end of the semi-enclosing box body 51, and the upper end of the semi-enclosing box body 51 is snapped into the concave. Both the upper and lower ends of the semi-enclosing box body 51 can be limited. On the one hand, it facilitates the installation of the delay trigger structure 5, and on the other hand, the semi-enclosing box body 51 itself can also improve the installation accuracy of the water stop belt 2 and the delay arc 3, effectively ensuring the parallelism between the water stop belt 2 and the delay arc 3.

[0051] Preferably, a plurality of delay arcs 3 are provided, which are specifically designed according to the length of the water stop belt 2. A delay arc 3 is provided every 1 m. A common delay trigger structure 5 is provided below the base belts on the same side of the plurality of delay arcs 3. A plurality of sliders 53 in the delay trigger structure 5 are provided, and the number is equal to the number of delay arcs 3. Each slider 53 is connected to the corresponding delay arc 3 through a steel wire 54. A common support body 52 is provided above all the sliders 53. Only after all the sliders 53 are separated from the support body 52 will the support body 52 fall.

[0052] The working principle of the present invention: Refer to Figure 6 、 Figure 7 and Figure 8 , these three attached drawings show the entire action process of the delay arc 3 of the present invention. In the introduction of the working principle, it is defaulted that the number of delay arcs 3 of the present invention is only one. First, refer to Figure 6 , at this time, it is the state before the building structures on both sides of the deformation joint 1 settle. The water stop belt 2 and the delay arc 3 are both in a straight state. The cross-section of the hollow tube 21 shows a perfect circle, and the cross-section of the deformation section 31 is a semi-circle. The slider 53 is directly below the support body 52, and the steel wires 54 on both sides are in a taut state. With the occurrence of settlement, refer to Figure 7 , in the introduction of the working principle, it is defaulted that the settlement amount of the building structure on the right side of the deformation joint 1 is greater than that on the left side. The hollow tube 21 is gradually flattened, and at the same time, the deformation section 31 of the delay arc 3 also deforms from a semi-circle to a crescent shape. At this time, the deformation section 31 is slightly bent and has not reached the taut state; the steel wire 54 on the left side of the deformation joint 1 is taut and pulls the slider 53, and the delay trigger structure 5 on the left side is triggered. The steel wire 54 on the right side becomes slack, and the delay trigger structure 5 on the right side fails. Although the slider 53 on the left side moves a certain distance towards the deformation joint 1, it still does not break away from the support body 52. At this time, the support body 52 can still provide a supporting effect to the base body 22 above it. With the further aggravation of settlement, refer to Figure 8 , at this time, the hollow tube 21 relative to Figure 7It is pulled flatter, but still not reaching the critical state of tearing. The deformation section 31 of the delay arc 3 has almost been pulled into a straight line. At this time, the deformation section 31 is tightened and starts to bear force, thus playing a role in delaying the stretching of the hollow tube 21. Since the deformation section 31 is tightened, its central height relative to Figure 7 is decreased. Therefore, the left slider 53 is pulled down into the deformation joint 1. The slider 53 disengages from the support body 52, and the support body 52 drops to the bottom of the semi-surrounding box body 51. At this time, the base body 22 above the support body 52 will also tilt downward and deform under the action of the deformation force of the hollow tube 21 due to the loss of support. Figure 8 This state can also be regarded as the critical state before the deformation section 31 of the delay arc 3 breaks. When the deformation section 31 breaks, the downward-tilted part of the base body 22 can play a role in secondary delay, effectively delaying the tearing of the waterstop 2.

[0053] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0054] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A CB-type rubber waterstop and delayed arc matching structure applied to deformation joints, characterized in that: It includes a waterstop belt (2) and a delay arc (3) that penetrate the deformation joint (1) along the width direction of the deformation joint (1), and the delay arc (3) is arranged below the waterstop belt (2); the waterstop belt (2) includes a hollow tube (21), both ends of the hollow tube (21) are connected with a matrix (22), the hollow tube (21) is arranged along the length direction of the deformation joint (1), and the matrix (22) is buried inside both sides of the deformation joint (1); the delay arc (3) includes a deformation section (31), both ends of the deformation section (31) are connected with a fastening section (32), the deformation section (31) is in the shape of a downward concave semi-circular arc sheet, the deformation section (31) is arranged along the length direction of the deformation joint (1), and the fastening section (32) is buried inside both sides of the deformation joint (1); when the building structures on both sides of the deformation joint (1) undergo uneven settlement, the deformation section (31) deforms synchronously with the hollow tube (21), and the deformation section (31) reaches the critical state of fracture prior to the hollow tube (21). A delay trigger structure (5) is provided between the matrix (22) and the fastening section (32) on both sides of the deformation joint (1), and the delay trigger structure (5) includes a semi-enclosed box body (51), the semi-enclosed box body (51) is in the shape of a cuboid, its top surface and one of its side surfaces are open to the outside, a support body (52) that closely adheres to the deformation joint (1) is arranged inside the semi-enclosed box body (51), the support body (52) supports the matrix (22) above the semi-enclosed box body (51) through the open top surface, a slider (53) is padded between the support body (52) and the inner bottom of the semi-enclosed box body (51), the inside of the semi-enclosed box body (51) is connected to the deformation joint (1) through the open side surface, and a tight steel wire (54) is connected between the slider (53) and the midpoint of the semi-circular arc of the deformation section (31).

2. The CB-type rubber waterstop and delayed arc matching structure applied to the deformation joint according to claim 1, wherein: The outer diameter of the semi-circular arc of the deformation section (31) is equal to the outer diameter of the hollow tube (21), and both ends of the deformation section (31) along the width direction of the deformation joint (1) and both ends of the hollow tube (21) along the width direction of the deformation joint (1) are tangent to the side walls of the deformation joint (1).

3. The CB type rubber waterstop and delayed arc matching structure applied to deformation joints according to claim 1, characterized in that: The fastening section (32) includes an anchoring section (321) and a tightening section (322), one end of the anchoring section (321) is connected to the deformation section (31), and the other end is connected to the tightening section (322); steel bars (4) are buried inside both sides of the deformation joint (1) where the fastening section (32) is located, and the tightening section (322) is wound and connected to the steel bars (4).

4. The CB type rubber waterstop and delayed arc matching structure applied to the deformation joint according to claim 3 is characterized in that: A number of through anchoring holes (3211) are provided on the anchoring section (321), and a number of anchoring nails (3212) are also connected to the anchoring section (321).

5. The CB-type rubber waterstop and delayed arc matching structure applied to the deformation joint according to claim 3, characterized in that: The tightening section (322) is provided with a tightening chute (3221) and a fastening nail (3222), and after the tightening section (322) is wound and connected to the steel bar (4), the fastening nail (3222) is buckled into the tightening chute (3221) for connection.

6. The CB type rubber water stop belt and delayed arc matching structure applied to the deformation joint according to claim 3, characterized in that: A number of reinforcing wire lines (33) are provided on both the anchoring section (321) and the deformation section (31).

7. A CB-type rubber waterstop and delayed arc matching structure applied to a deformation joint according to claim 6, characterized in that: When the building structures on both sides of the deformation joint (1) undergo uneven settlement, the height of the midpoint of the semi-circular arc of the deformation section (31) gradually decreases. One of the sliders (53) on one side of the deformation joint (1) slides towards the side where the deformation joint (1) is located under the action of the steel wire (54). Before the deformation section (31) reaches the critical state of fracture, the connection between the slider (53) and the support body (52) is disengaged, and the support body (52) drops a certain distance and loses the support effect on the substrate (22) above it.

8. A CB-type rubber waterstop and delayed arc matching structure applied to deformation joints according to claim 7, characterized in that: A hollow wire groove (2201) is provided on the lower surface of the substrate (22) above the support body (52).

9. A CB-type rubber waterstop and delayed arc matching structure applied to deformation joints according to claim 7, characterized in that: A layer of rubber pad (2202) is padded on the upper surface of the substrate (22) above the support body (52).

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