Large cantilever modeling piece joint waterproof structure

By employing a dual-layer design of waterproof sealant and rubber strips at the joints of large cantilevered structural components, combined with drainage boxes and quick-installation mechanisms, the problems of complex waterproofing construction and poor durability at the joints are solved, achieving efficient waterproofing and structural stability.

CN223907696UActive Publication Date: 2026-02-13CHINA CONSTR FIFTH ENG DIV CORP LTD
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Patent Information

Application Number
CN202520486924.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-02-13
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Existing waterproofing methods at the joints of large cantilevered structural components are complex, ineffective, and lack durability, making the structure susceptible to erosion and damage from rainwater.

Method used

It adopts a dual-barrier design with a waterproof sealant layer and a waterproof rubber strip, combined with a drainage box and quick-installation mechanism, forming multiple lines of defense to block and drain rainwater.

Benefits of technology

It improves waterproofing performance, extends the service life of buildings, reduces construction and maintenance costs, and enhances the stability and durability of structures.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building waterproofing, and discloses a large-scale overhanging modeling piece joint waterproof structure which comprises two overhanging components, sliding grooves are formed in the adjacent sides of the two overhanging components, a plurality of drainage boxes are connected to the left side and the right side of the inner wall of the left sliding groove in a sliding mode, and the drainage boxes are connected to the left side and the right side of the inner wall of the right sliding groove in a sliding mode. The right sides of the outer walls of the multiple drainage boxes are slidably connected with the inner walls of the sliding grooves in the right side, the left sides and the right sides of the tops of the multiple drainage boxes are fixedly connected with waterproof rubber strips, and the multiple waterproof rubber strips are slidably connected with the corresponding sliding grooves correspondingly. According to the waterproof structure, rainwater can be effectively prevented from seeping through double blocking of the waterproof sealing rubber layer and the waterproof rubber strip, seeping rainwater is timely drained through the design of the drainage box and the drainage pipe, damage to the structure caused by accumulated water is prevented, all parts are reasonable in material selection and high in durability, the service life of the whole waterproof structure is effectively prolonged, and the waterproof structure is suitable for popularization and application. The overall durability of the building is improved, and the later maintenance cost is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to building waterproof technical field especially relates to a large -scale cantilevered modeling piece joint waterproof structure. BACKGROUND

[0002] In the field of construction, large -scale cantilevered modeling piece is widely used in modern building due to its unique design and functionality, however, the joint of cantilevered modeling piece often causes structural damage due to rainwater penetration, affects the aesthetic and safety of building, in recent years, with the complication of building design, the joint waterproof problem is increasingly prominent, becomes the problem of industry that urgently needs to be solved.

[0003] At present, common joint waterproof means include sealant filling, waterproof roll covering and metal water baffle installation, sealant filling is simple to operate, but is prone to aging and cracking after long-term use, waterproof roll covering can effectively prevent water, but the construction is complex and the cost is high, the metal water baffle is durable, but its weight is large, increases the load of cantilever structure and reduces the practicability of the device. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a large -scale cantilevered modeling piece joint waterproof structure, which aims at improving the problems of complex construction, poor effect and poor durability of the joint waterproof of large -scale cantilevered modeling piece in the prior art, improving the waterproof performance and prolonging the service life of building.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a large -scale cantilevered modeling piece joint waterproof structure, including two cantilevered components, the adjacent side of two cantilevered components is provided with a sliding slot, the inner wall of the left sliding slot is slidably connected with a plurality of drainage boxes, the outer wall right side of a plurality of drainage boxes is slidably connected with the inner wall of the right sliding slot, the top left and right sides of a plurality of drainage boxes are fixedly connected with waterproof rubber strips, a plurality of waterproof rubber strips are slidably connected with corresponding sliding slots, the top of a plurality of waterproof rubber strips is fixedly connected with waterproof sealant layer, the bottom of a plurality of drainage boxes is provided with a drainage hole, the bottom of a plurality of drainage boxes is communicated with a drainage pipe, and a plurality of quick -mounting mechanisms are arranged between the adjacent drainage boxes.

[0006] Through the technical scheme, when rain falls on the joint between the two cantilever members, the waterproof sealing rubber layer blocks most of the rainwater from penetrating in due to its good sealing performance, forming the first line of defense. If some rainwater penetrates the rubber layer, it will encounter the waterproof rubber strip, which is tightly fitted in the sliding groove due to its good elasticity, and can further block the rainwater, forming the second line of defense. Even if some rainwater penetrates the rubber strip, it will flow into the drainage box installed in the sliding groove. The bottom of the drainage box is provided with a drainage hole, and the rainwater flows into the drainage pipe through the drainage hole and is finally discharged outside the structure, avoiding water accumulation at the joint.

[0007] As a further description of the above technical scheme:

[0008] The quick mounting mechanism comprises a plurality of clamping blocks one, the outer wall of the left drainage box is fixedly connected with the plurality of clamping blocks one, the outer wall of the right drainage box is provided with clamping grooves, the clamping blocks one are slidably connected with the clamping grooves, the inner wall top of the clamping grooves is provided with a plurality of reserved grooves, the inner wall top of the plurality of reserved grooves is fixedly connected with a plurality of springs, the bottom of the plurality of springs is fixedly connected with a plurality of clamping blocks two, the top of the plurality of clamping blocks one is provided with a plurality of reserved holes, and the plurality of clamping blocks two are respectively clamped with the corresponding reserved holes.

[0009] Through the above technical scheme, the quick mounting mechanism makes the installation and disassembly of adjacent drainage boxes efficient and convenient. When installing, the clamping blocks one of the left drainage box are aligned with the clamping grooves of the right drainage box and then pushed in. The clamping blocks one extrude the clamping blocks two, so that the clamping blocks two are retracted into the reserved grooves. When the clamping blocks one are completely slid in, the springs push the clamping blocks two into the reserved holes, and the drainage boxes are firmly connected. At this time, the sealing gasket is tightly clamped between the two drainage boxes, which can fill the gap and prevent rainwater from leaking from the drainage box connection, thereby enhancing the waterproof performance. When disassembling, the clamping blocks two are pushed upwards to be separated from the reserved holes, and the drainage boxes can be easily separated. The whole process is simple to operate, saves time and effort for installation and maintenance, and also ensures the stability and sealing performance of the waterproof structure.

[0010] As a further description of the above technical scheme:

[0011] The inner wall left and right sides of the plurality of waterproof rubber strips are fixedly connected with a plurality of reinforcing ribs, and the diameters of the plurality of reinforcing ribs are equal.

[0012] Through the above technical scheme, the reinforcing ribs enhance the structural strength of the waterproof rubber strip, prevent deformation and damage, ensure tight fitting with the sliding groove, and maintain waterproof performance.

[0013] As a further description of the above technical scheme:

[0014] A plurality of horizontal plates are fixedly connected to the inner wall top and bottom of the plurality of drainage boxes, a plurality of vertical plates are fixedly connected to the inner wall left and right sides of the plurality of drainage boxes, and the plurality of horizontal plates are fixedly connected with the corresponding vertical plates.

[0015] Through the technical scheme, the horizontal plate and the vertical plate are connected to each other to form a stable structure system, and the overall rigidity of the drainage box is enhanced, so that when water is accumulated in the drainage box or the drainage box is subjected to external pressure, the structure can effectively prevent the drainage box from deforming, ensure that the drainage hole and the drainage pipe are unobstructed, and maintain the normal operation of the waterproof structure.

[0016] Further description of the technical scheme is as follows:

[0017] The rear end of each of the plurality of drainage boxes is fixedly connected with a sealing gasket, and the rear side of the outer wall of each of the plurality of sealing gaskets is fixedly connected with the corresponding first clamping block.

[0018] Through the technical scheme, when the drainage boxes are connected by means of the quick mounting mechanism, the sealing gasket is clamped between the two drainage boxes, and since the sealing gasket is elastic, it can effectively fill the gap between the rear end of the drainage box and the first clamping block and the clamping groove, thereby preventing rainwater from penetrating and further improving the waterproof effect.

[0019] Further description of the technical scheme is as follows:

[0020] The outer wall of each of the plurality of drainage pipes is fixedly connected with a fixing sleeve, the middle part of the outer wall of each of the plurality of fixing sleeves is fixedly connected with a connecting rod, and the top end of each of the plurality of connecting rods is fixedly connected with the right cantilever member.

[0021] Through the technical scheme, one end of the connecting rod is stably connected to the middle part of the fixing sleeve, and the other end is fixedly connected to the right cantilever member, thereby forming a reliable support system for the drainage pipe and ensuring the stability of the drainage pipe.

[0022] Further description of the technical scheme is as follows:

[0023] The outer wall of the front drainage box is fixedly connected with a protective box, and the surface of the protective box is subjected to corrosion protection treatment.

[0024] Through the technical scheme, the protective box is installed on the outer wall of the front drainage box, can resist external impact, friction and other adverse factors, and effectively protects the drainage box.

[0025] Further description of the technical scheme is as follows:

[0026] The bottom end of each of the plurality of second clamping blocks is subjected to smoothing treatment, and the surface of each of the plurality of second clamping blocks is subjected to smoothing treatment.

[0027] Through the technical scheme, the second clamping block is smoothly treated at the bottom end, and the surface is smoothly treated, so that the friction between the first clamping block and the second clamping block when the first clamping block slides into the clamping groove is significantly reduced, which makes the first clamping block more smoothly push the second clamping block to move upward to shrink into the reserved groove to overcome the spring force during installation, greatly facilitates the quick installation of the adjacent drainage box, and the treatment mode effectively reduces the wear degree of the second clamping block during frequent installation and disassembly, thereby prolonging the service life of the second clamping block and ensuring long-term stable operation of the quick installation mechanism.

[0028] The utility model has the advantages of the following beneficial effects:

[0029] 1. In the utility model, the waterproof performance is greatly improved through the double blocking of the waterproof sealing rubber layer and the waterproof rubber strip, rainwater can be effectively prevented from penetrating, the structure can be prevented from being damaged due to rainwater erosion, the drainage box and the drainage pipe are designed to timely remove the penetrated rainwater, prevent water accumulation from damaging the structure, the parts are reasonably selected, have high durability, effectively prolong the service life of the entire waterproof structure, and further improve the durability of the building as a whole and reduce the maintenance cost in the later period.

[0030] 2. In the utility model, the clamping block, the clamping groove and the spring are designed to make the drainage box easy to install, and a single person can quickly complete the installation, greatly shortening the construction period and reducing the labor cost. After installation, the sealing gasket enhances the waterproof performance, reduces the leakage risk, ensures the waterproof effect, and is easy to operate when disassembled, facilitating maintenance and replacement of parts, reducing maintenance difficulty and cost. Moreover, the stable connection mode ensures the stability of the waterproof structure in use, prolongs the overall service life of the waterproof structure, and effectively improves the quality and reliability of the large cantilever shaped joint waterproof structure. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A perspective view of a large cantilever shaped joint waterproof structure is provided for the utility model;

[0032] Figure 2 A sliding groove schematic view of a large cantilever shaped joint waterproof structure is provided for the utility model;

[0033] Figure 3 A partial structure split view of a large cantilever shaped joint waterproof structure is provided for the utility model;

[0034] Figure 4 A drainage box sectional view of a large cantilever shaped joint waterproof structure is provided for the utility model;

[0035] Figure 5 A first clamping block schematic view of a large cantilever shaped joint waterproof structure is provided for the utility model;

[0036] Figure 6The utility model provides a kind of fast mounting mechanism schematic diagram of large cantilevered shaped piece joint waterproof structure.

[0037] Legend:

[0038] 1, cantilevered member;2, fast mounting mechanism;201, block one;202, card slot;203, reserved slot;204, spring;205, block two;206, reserved hole;3, sliding slot;4, drainage box;5, waterproof rubber strip;6, waterproof seal glue layer;7, drainage hole;8, drain pipe;9, reinforcing rib;10, horizontal plate;11, vertical plate;12, sealing pad;13, fixed sleeve;14, connecting rod;15, protection box. Specific embodiments

[0039] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0040] Reference Figure 1 , Figure 2 and Figure 3The utility model provides a kind of embodiment: a large cantilevered shaped piece joint waterproof structure, including two cantilevered components 1, two cantilevered components 1 provide installation base for entire waterproof structure, the adjacent side of two cantilevered components 1 is all set with sliding slot 3, for installing drainage box 4 and waterproof rubber strip 5, to provide sliding track and installation position for it, the inner wall of left side sliding slot 3 is all slidably connected with multiple drainage box 4, drainage box 4 is the key component of collection and drainage of infiltrated rainwater, the outer wall right side of multiple drainage box 4 is slidably connected with the inner wall of right side sliding slot 3, such connection makes drainage box 4 can be stably installed between two cantilevered components 1, the top left and right sides of multiple drainage box 4 are all fixedly connected with waterproof rubber strip 5, waterproof rubber strip 5 effectively blocks rainwater continues to infiltrate, further enhances waterproof effect, multiple waterproof rubber strips 5 are slidably connected with corresponding sliding slot 3 respectively, guarantee that waterproof rubber strip 5 can move along with the movement of drainage box 4, while maintaining sealing performance, the top of multiple waterproof rubber strips 5 is all fixedly connected with waterproof sealing adhesive layer 6, waterproof sealing adhesive layer 6 can block rainwater directly infiltrates into joint interior, as the first line of defense of waterproof, the bottom of multiple drainage box 4 is all set with drainage hole 7, drainage hole 7 is used to drain rainwater in drainage box 4, the bottom of multiple drainage box 4 is all communicated with drain pipe 8, rainwater drained by drainage hole 7 is guided to building drainage system by drain pipe 8, the adjacent between multiple drainage box 4 is all provided with quick -mounting mechanism 2, quick -mounting mechanism 2 can realize the quick installation and disassembly between drainage box 4, the inner wall left and right sides of multiple waterproof rubber strips 5 are all fixedly connected with reinforcing rib 9, reinforcing rib 9 enhances the structural strength of waterproof rubber strip 5, prevents its deformation, damage, guarantee waterproof rubber strip 5 tightly fits sliding slot 3, maintains good waterproof performance, the inner wall upper and lower sides of multiple drainage box 4 are all fixedly connected with multiple horizontal plates 10, the inner wall left and right sides of multiple drainage box 4 are all fixedly connected with vertical plate 11, horizontal plate 10 and vertical plate 11 are mutually fixedly connected and commonly constitute firm support structure, improve the overall rigidity of drainage box 4, when drainage box 4 is filled with water or is subjected to external pressure, prevent drainage box 4 from deforming, ensure that drainage hole 7 and drain pipe 8 drain smoothly, guarantee the normal operation of entire waterproof structure;

[0041] Specifically, when the rain falls on the joint of the two cantilever members 1, it first contacts the waterproof sealant layer 6, which has good sealing performance and blocks most of the rain from penetrating directly into the joint, providing the first line of defense for waterproofing. Rain that passes through the waterproof sealant layer 6 will hit the waterproof rubber strip 5, which is elastic and tightly fitted in the sliding groove 3, further preventing rain from continuing to infiltrate, serving as the second line of waterproofing. When rain still breaks through the waterproof rubber strip 5, it will flow into the drainage box 4, which is installed in the sliding groove 3 and has a drainage hole 7 at the bottom. The incoming rain will be collected through the drainage hole 7 into the drainage pipe 8, ultimately draining the rain out of the structure, preventing the accumulation of rain at the joint and ensuring the waterproofing effect of the joint. The entire waterproof structure achieves effective waterproofing of the joint of large cantilevered shaped parts through the synergistic effect of the waterproof sealant layer 6, the waterproof rubber strip 5, and the drainage box 4. The reinforcing ribs 9 are fixed on the inner wall of the waterproof rubber strip 5 on both sides, which can enhance the structural strength of the waterproof rubber strip 5. When the waterproof rubber strip 5 is impacted by rain, stretched due to temperature changes, or squeezed by external forces, the reinforcing ribs 9 can prevent the rubber strip from deforming or breaking, ensuring that it tightly fits the sliding groove 3 and maintains good waterproof performance. The horizontal plate 10 and the vertical plate 11 in the drainage box 4 are fixedly connected to each other, forming a stable support structure that can improve the overall rigidity of the drainage box 4. When the water in the drainage box 4 is subjected to external pressure, the horizontal plate 10 and the vertical plate 11 can prevent the drainage box 4 from deforming, ensuring smooth drainage of the drainage hole 7 and the drainage pipe 8 and ensuring the normal operation of the entire waterproof structure.

[0042] Referring to Figure 1 , Figure 5 and Figure 6, the quick mounting mechanism 2 comprises a plurality of clamping blocks one 201, the plurality of clamping blocks one 201 are fixedly connected on the right side of the outer wall of the left drainage box 4, and are matched with the clamping grooves 202 on the right drainage box 4 to realize connection, the left side of the outer wall of the right drainage box 4 is provided with the clamping grooves 202, the clamping blocks one 201 are slidably connected with the clamping grooves 202, the clamping grooves 202 are used for slidably connecting with the clamping blocks one 201, so that the adjacent drainage boxes 4 are preliminarily positioned, the inner wall top of the plurality of clamping grooves 202 is fixedly connected with the springs 204, the springs 204 can provide elastic force for the clamping blocks two 205, the bottom end of the plurality of springs 204 is fixedly connected with the clamping blocks two 205, the clamping blocks two 205 are clamped with the reserved holes 206 on the clamping blocks one 201 by the elastic force of the springs 204, and stable connection between the drainage boxes 4 is realized, the top of the plurality of clamping blocks one 201 is provided with the reserved holes 206, the reserved holes 206 are clamped with the clamping blocks two 205, quick installation of the drainage boxes 4 is completed, and the stability of connection is ensured, the plurality of clamping blocks two 205 are clamped with corresponding reserved holes 206 respectively, so that reliable fixed connection between the adjacent drainage boxes 4 is realized, the rear end of the plurality of drainage boxes 4 is fixedly connected with the sealing pads 12, and the sealing pads 12 can fill the gaps at the rear end of the drainage boxes 4, the outer wall rear side of the plurality of sealing pads 12 is fixedly connected with corresponding clamping blocks one 201 respectively, so that the sealing pads 12 can effectively play a sealing role when the drainage boxes 4 are connected, and rainwater is prevented from leaking from the rear end connecting portion of the drainage boxes 4;

[0043] Specifically, when the adjacent drainage boxes 4 are installed, the clamping blocks one 201 on the right side of the outer wall of the left drainage box 4 are aligned with the clamping grooves 202 on the left side of the outer wall of the right drainage box 4 and are pushed, the clamping blocks one 201 are slid into the clamping grooves 202, the top of the clamping blocks one 201 is pressed against the clamping blocks two 205, the clamping blocks two 205 are retracted into the reserved grooves 203 against the elastic force of the springs 204, when the clamping blocks one 201 are completely slid in, the springs 204 push the clamping blocks two 205 to be clamped into the reserved holes 206 on the top of the clamping blocks one 201 downwards, quick installation and stable connection are completed, when disassembling, the clamping blocks two 205 are pushed upwards to be separated from the reserved holes 206, when the adjacent drainage boxes 4 are connected through the quick mounting mechanism 2, the sealing pads 12 are clamped between the two drainage boxes 4, the sealing pads 12 have elasticity and can fill the gaps between the rear end of the drainage boxes 4, the clamping blocks one 201 and the clamping grooves 202, and rainwater is prevented from seeping in.

[0044] Referring to Figure 1 , Figure 3 and Figure 4The outer wall of the plurality of drain pipes 8 is fixedly connected with the fixing sleeve 13, which plays a role of stable support and positioning, the outer wall of the plurality of fixing sleeves 13 is fixedly connected with the connecting rod 14, the top end of the plurality of connecting rods 14 is fixedly connected with the right side cantilever component 1, the connecting rod 14 is used as a connecting component, and the fixing sleeve 13 and the right side cantilever component 1 are integrated, so that a reliable support system is constructed for the drain pipe 8; the outer wall of the front side drain box 4 is fixedly connected with the protection box 15, the protection box 15 provides an additional protection barrier for the drain box 4, and the surface of the protection box 15 is subjected to corrosion treatment; the bottom end of the plurality of clamping blocks two 205 is subjected to smoothing treatment, so that the contact between the clamping block one 201 and the bottom end of the clamping block two 205 is smoother during sliding into the clamping groove 202, and the frictional resistance can be effectively reduced, the surface of the plurality of clamping blocks two 205 is subjected to smoothing treatment, so that the abrasion between components is reduced, and the overall service life of the quick mounting mechanism 2 is beneficially prolonged;

[0045] Specifically, one end of the connecting rod 14 is connected with the middle part of the fixing sleeve 13, and the other end is fixed on the right side cantilever component 1, the structure provides stable support for the drain pipe 8, the protection box 15 is fixed on the outer wall of the front side drain box 4, and the drain box 4 can be protected from damage by external factors, the bottom end of the clamping block two 205 is subjected to smoothing treatment, and the surface is subjected to smoothing treatment, so that the frictional force between the clamping block one 201 and the clamping block two 205 can be reduced when the clamping block one 201 slides into the clamping groove 202, the clamping block one 201 can more smoothly push the clamping block two 205 to move upward and shrink into the reserved groove 203, the adjacent drain boxes 4 can be quickly mounted, and meanwhile, the abrasion of the clamping block two 205 is reduced, and the service life thereof is prolonged.

[0046] Working principle: when rain falls on the joint between the two cantilever components 1, the waterproof sealing rubber layer 6 is first contacted, the waterproof sealing rubber layer 6 has good sealing performance and can block most of the rainwater from directly penetrating into the joint, and the first line of defense for waterproofing is formed, once the rainwater penetrates the waterproof sealing rubber layer 6, the waterproof rubber strip 5 is contacted, the waterproof rubber strip 5 has good elasticity and is tightly fitted in the sliding groove 3, so that the rainwater can be further prevented from continuing to penetrate, and the second waterproof effect is achieved, even if the rainwater still breaks through the waterproof rubber strip 5, the rainwater will flow into the drain box 4, the drain box 4 is installed in the sliding groove 3, and the bottom part is provided with the drain hole 7, so that the rainwater flows into the drain pipe 8 through the drain hole 7, and finally the rainwater is discharged out of the structure, so that the rainwater is prevented from accumulating in the joint, and the waterproof effect of the joint is ensured;

[0047] When the adjacent drainage box 4 is installed, the clamping block one 201 on the right side of the outer wall of the left drainage box 4 is aligned with the clamping groove 202 on the left side of the outer wall of the right drainage box 4 and is pushed, and in the process of sliding into the clamping groove 202, the top of the clamping block one 201 extrudes the clamping block two 205, so that the clamping block two 205 is retracted into the reserved groove 203 against the elastic force of the spring 204; when the clamping block one 201 is completely slid in, the spring 204 pushes the clamping block two 205 to be clamped into the reserved hole 206 on the top of the clamping block one 201 downward, the quick installation and stable connection are completed, and when disassembled, the clamping block two 205 is pushed upward to be separated from the reserved hole 206.

[0048] In the whole waterproof structure, the waterproof sealing rubber layer 6, the waterproof rubber strip 5 and the drainage box 4 play their respective roles and cooperate with each other, and are connected with each other, from blocking, blocking to drainage, and all-round efficient waterproof is realized for the joint of the large cantilever shaped part, and the building structure is effectively protected from rain erosion.

[0049] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A large cantilevered shaped piece joint waterproof structure comprising two cantilevered members (1), characterized in that: Both said cantilever components (1) are provided with a chute (3) on the adjacent side, the inner wall of the left side chute (3) is slidably connected with a plurality of drainage boxes (4), the outer wall of the right side chute (3) is slidably connected with a plurality of drainage boxes (4), the top of the plurality of drainage boxes (4) is fixedly connected with a waterproof rubber strip (5), the plurality of waterproof rubber strips (5) are slidably connected with the corresponding chute (3), the top of the plurality of waterproof rubber strips (5) is fixedly connected with a waterproof sealing rubber layer (6), the bottom of the plurality of drainage boxes (4) is provided with a drainage hole (7), the bottom of the plurality of drainage boxes (4) is communicated with a drainage pipe (8), and the plurality of drainage boxes (4) are provided with a quick installation mechanism (2).

2. A large cantilevered shaped member joint waterproof structure according to claim 1, characterized in that: The quick installation mechanism (2) comprises a plurality of clamping blocks (201), the outer wall of the left side drainage box (4) is fixedly connected with a plurality of clamping blocks (201), the outer wall of the right side drainage box (4) is provided with a clamping groove (202), the clamping block (201) is slidably connected with the clamping groove (202), the inner wall of the clamping groove (202) is provided with a reserved groove (203) on the top, the inner wall of the plurality of reserved grooves (203) is fixedly connected with a spring (204), the bottom end of the plurality of springs (204) is fixedly connected with a clamping block (205), the top of the plurality of clamping blocks (201) is provided with a reserved hole (206), and the plurality of clamping blocks (205) are clamped with the corresponding reserved holes (206).

3. A large cantilevered shaped member joint waterproof structure according to claim 1, characterized in that: The inner wall of the plurality of waterproof rubber strips (5) is fixedly connected with a reinforcing rib (9), and the diameters of the plurality of reinforcing ribs (9) are equal.

4. A large cantilevered shaped member joint waterproof structure according to claim 1, characterized in that: The inner wall of the plurality of drainage boxes (4) is fixedly connected with a plurality of horizontal plates (10) on the top and bottom, and the inner wall of the plurality of drainage boxes (4) is fixedly connected with a vertical plate (11) on the left and right sides.

5. A large cantilevered shaped member joint waterproof structure according to claim 2, characterized in that: The rear end of the plurality of drainage boxes (4) is fixedly connected with a sealing gasket (12), and the outer wall of the plurality of sealing gaskets (12) is fixedly connected with the corresponding clamping block (201).

6. A large cantilevered shaped member joint waterproof structure according to claim 1, characterized in that: The outer wall of the plurality of drainage pipes (8) is fixedly connected with a fixed sleeve (13), the outer wall of the plurality of fixed sleeves (13) is fixedly connected with a connecting rod (14), and the top end of the plurality of connecting rods (14) is fixedly connected with the right side cantilever component (1).

7. A large cantilevered shaped member joint waterproof structure according to claim 1, characterized in that: The outer wall of the front side drainage box (4) is fixedly connected with a protection box (15), and the surface of the protection box (15) is treated by corrosion protection.

8. A large cantilevered shaped member joint waterproof structure according to claim 2, characterized in that: The bottom end of the plurality of clamping blocks (205) is treated by smoothing, and the surface of the plurality of clamping blocks (205) is treated by smoothing.