Waterproof plugging structure for embedded hole
By designing an adjustable connecting body and contact plate structure, the problem of loosening and damage to the pre-embedded hole sealing structure was solved, achieving close contact with the inner wall of the hole and enhancing stability and waterproofing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-07
AI Technical Summary
Existing pre-embedded hole sealing structures are prone to loosening or falling off after installation, making it difficult to make close contact with the inner wall of the hole, and may damage the wall or ground, resulting in poor sealing effect.
An adjustable connecting body, including a cylinder and a control plate, is adopted. The cylinder and the hole are stably connected by rotating the control plate and fixing components. Combined with the adjustable contact plate, the cylinder is in close contact with the inner wall of the hole, which enhances stability.
It improves the stability of the pre-embedded hole waterproof sealing structure within the hole, avoids damage to the wall or ground, extends service life, and enhances waterproofing effect.
Smart Images

Figure CN224092734U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of concrete construction technology, specifically a pre-embedded hole waterproof sealing structure. Background Technology
[0002] Pre-reserved holes are unavoidable during on-site construction. However, if the perimeter of the hole is not properly sealed after construction, the poor bonding will directly affect the quality of the concrete. Therefore, it is essential to waterproof and seal the pre-reserved holes.
[0003] However, the following problems were found in the implementation of the relevant technologies:
[0004] When selecting a sealing structure, a sleeve can be inserted into the pre-embedded hole. However, due to the inconsistent length of the sleeves, if the sleeve is too short, the friction between the sleeve and the hole wall will be too small, and the sleeve will easily fall off. If the sleeve is too long, it cannot be placed into the hole wall. Therefore, existing technologies often choose screws or other structures to fix the sealing structure in the wall or ground. In this case, it is difficult to avoid damage to the wall or ground, and the integrity of the wall or ground will be compromised.
[0005] Secondly, most of the pre-embedded hole waterproof sealing structures are not easy to make close contact with the innermost sidewall of the precast hole after installation, and the support after installation may be insufficient. This makes it difficult to maintain stability in complex environments or hole conditions, and they are prone to displacement due to factors such as vibration and temperature changes. Utility Model Content
[0006] To address the problems mentioned in the background section, this invention provides a pre-embedded hole waterproof sealing structure, which has the advantages of improving the integrity of walls or floors and reducing the likelihood of displacement or loosening. This invention selects the number of connecting bodies according to the length of the pre-embedded hole, ensuring the cylinder's length matches the pre-cast hole, thus maximizing the stability of the cylinder within the pre-cast hole and preventing damage to the wall or floor. Furthermore, the adjustable contact plate ensures tight contact with the innermost sidewall of the pre-cast hole after installation, preventing displacement or loosening after installation.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a pre-embedded hole waterproof sealing structure, comprising several connecting bodies, each connecting body including a cylinder and several control plates disposed on one side of the cylinder, the cylinder having a through hole along its length, the control plates being rotatably connected to the opening of the through hole, the control plates having an abutting state of being screwed out of the cylinder and a retracted state of being retracted into the cylinder, a baffle plate being disposed inside the cylinder to completely cover the opening of the through hole, a control ring being disposed on the side of the cylinder away from the control plates, and a fixing component being disposed on the control plates to fix the control plates to the control rings on adjacent cylinders when the control plates are in the retracted state.
[0008] Preferably, a plurality of overlapping blocks are provided on the side of the cylinder away from the control panel, and an overlapping groove is provided on the side of the cylinder near the control panel for the overlapping blocks to be inserted.
[0009] Preferably, the fixing assembly includes a snap-fit rod sliding on a control ring and a fixing block disposed on a control plate. The control ring has a fixing groove for inserting the fixing block. The groove wall of the fixing groove has a sliding groove for the snap-fit rod to slide along the direction close to or away from the central axis of the cylinder. The fixing block has a snap-fit groove for inserting the snap-fit rod. The snap-fit rod has a guide slope for the fixing block to abut against and control the snap-fit rod to slide away from the fixing block. The control ring is also provided with an elastic element for controlling the snap-fit rod to slide closer to the fixing block.
[0010] Preferably, the elastic element is an abutment spring, one end of which abuts against the bottom of the sliding groove, and the other end of which abuts against the locking rod.
[0011] Preferably, the overlapping block can slide on the cylinder, the overlapping block is provided with a connecting rod, the side of the connecting rod away from the overlapping block is provided on the snap-fit rod, and the cylinder is provided with a movable groove for the connecting rod to move.
[0012] Preferably, the wall of the overlapping groove is provided with an operating groove.
[0013] Preferably, when the control plate is in the contact state, the side of the control plate closest to the cylinder is in contact with one end face of the cylinder along its length.
[0014] Preferably, when the control panel is in the retracted state, a stabilizing block is provided on the side of the control panel near the shield, and a stabilizing groove is provided on the side of the shield near the stabilizing block for the stabilizing block to be inserted.
[0015] Preferably, an adjusting tube is provided at the inner end of the innermost cylinder, and a threaded sleeve is fixedly connected inside the adjusting tube. A threaded post is threaded through one side of the threaded sleeve, and a knob is fixedly connected to the end of the threaded post near the cylinder. A contact plate is fixedly connected to the end of the threaded post away from the cylinder.
[0016] Preferably, a retaining ring is fixedly connected to the side of the regulating tube near the cylinder, and the retaining ring is engaged on the inner surface of one end of the cylinder.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] 1. This utility model allows for the selection of the number of connecting bodies based on the length of the pre-embedded hole. The length of the cylinder is consistent with that of the pre-cast hole, ensuring the stability of the cylinder within the pre-cast hole as much as possible. It replaces structures such as screws that can damage the wall or floor, thus maintaining the integrity of the wall or floor.
[0019] 2. This utility model, through the pre-adjusted contact plate, can make close contact with the innermost sidewall of the pre-made hole after installation. The friction between the contact plate and the cylinder and the pre-made hole forms a multi-directional fixing force, which enhances the stability of the entire pre-embedded hole waterproof sealing structure within the pre-made hole. During long-term use, the structure is less likely to shift or loosen, effectively ensuring the waterproof sealing effect and extending the service life of the structure. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a cross-sectional structural diagram of the cylindrical body of this utility model;
[0022] Figure 3 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0023] Figure 4 This is a schematic diagram of the regulating tube structure of this utility model.
[0024] In the diagram: 1. Connect the main body;
[0025] 2. Cylinder body; 21. Cylinder hole; 22. Baffle plate; 221. Stabilizing groove; 23. Overlap block; 24. Overlap groove; 25. Control ring; 251. Fixing groove; 252. Sliding groove; 26. Movable groove; 27. Operating groove;
[0026] 3. Control panel; 31. Stabilizing block;
[0027] 4. Fixing component; 41. Snap-fit rod; 411. Guide bevel; 42. Fixing block; 421. Snap-fit groove;
[0028] 5. Elastic element; 51. Abutment spring;
[0029] 6. Connecting rod;
[0030] 7. Adjusting tube; 71. Threaded sleeve; 72. Threaded rod; 73. Knob; 74. Contact plate; 75. Snap ring. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] like Figures 1 to 4 As shown, this utility model provides a pre-embedded hole waterproof sealing structure, including several connecting bodies 1. Each connecting body 1 includes a cylindrical body 2 and several control plates 3 disposed on one side of the cylindrical body 2. In this embodiment, two control plates 3 are used as an example. The cylindrical body 2 has a through hole 21 extending along its length. The control plates 3 are rotatably connected to the opening of the through hole 21 via a shaft. A shielding plate 22 is disposed inside the cylindrical body 2 to completely cover the opening of the through hole 21. The cylindrical body 2 can be inserted into a pre-fabricated hole in the wall or ground along its length.
[0033] Specifically, the control plate 3 includes an abutting state and a retracted state: when the control plate 3 is in the abutting state, the control plate 3 is rotated out of the cylinder 2, and the length direction of the control plate 3 is perpendicular to the length direction of the cylinder 2; when the control plate 3 is in the retracted state, the control plate 3 is retracted into the cylinder 2, and the length direction of the control plate 3 is parallel to the length direction of the cylinder 2.
[0034] When the control plate 3 is in the contact state, the side end face of the control plate 3 closest to the cylinder 2 is exactly in contact with the side end face of the cylinder 2 along its length. The mutual contact between the two end faces improves the stability of the control plate 3 on the cylinder 2 in the contact state.
[0035] Furthermore, a stabilizing block 31 is welded to one side of the control plate 3. When the control plate 3 is in the retracted state, the stabilizing block 31 is located on the side of the control plate 3 closest to the baffle plate 22. A stabilizing groove 221 is formed on the end face of the baffle plate 22 near the stabilizing block 31. When the control plate 3 is rotated to the retracted state, the stabilizing block 31 can be inserted into the stabilizing groove 221. Because the stabilizing block 31 is inserted into the stabilizing groove 221, the stability of the control plate 3 on the cylinder 2 is improved when it is in the retracted state.
[0036] Several overlapping blocks 23 are installed on the side of the cylinder 2 away from the control plate 3. The number of overlapping blocks 23 is consistent with that of the control plate 3. An overlapping groove 24 is provided on the other side of the cylinder 2 for the overlapping blocks 23 to be inserted. With the cooperation of the overlapping blocks 23 and the overlapping groove 24, the connection stability between adjacent cylinders 2 is improved.
[0037] A control ring 25 is also installed on the side of the cylinder 2 away from the control plate 3. The control ring 25 is integrally set with the wall of the cylinder hole 21. A fixing component 4 is also installed on the control plate 3.
[0038] Furthermore, the fixing component 4 includes a snap-fit rod 41 and a fixing block 42. The fixing block 42 is welded to the control plate 3. A fixing groove 251 is provided on the control ring 25. When the two cylinders 2 are joined together, the fixing block 42 on the control plate 3 of one cylinder 2 can be inserted into the fixing groove 251 on the control ring 25 of the other cylinder 2. The snap-fit rod 41 slides on the control ring 25 along the direction close to or away from the central axis of the cylinder 2. A clamping mechanism is provided on the groove wall of the fixing groove 251. The sliding groove 252 for sliding the connecting rod 41 has a guide slope 411 on the connecting rod 41, and the fixing block 42 has a locking groove 421 for the connecting rod 41 to be inserted. An elastic element 5 is also provided on the control ring 25. The elastic element 5 is an abutment spring 51. One end of the abutment spring 51 abuts against the bottom of the sliding groove 252, and the other end of the abutment spring 51 abuts against the connecting rod 41, so that the abutment spring 51 always controls the connecting rod 41 to slide towards the fixing block 42.
[0039] It is worth noting that when connecting two cylinders 2, one cylinder 2 is controlled to move along its length toward the other cylinder 2. The fixing block 42 is inserted into the fixing groove 251 and abuts against the guide slope 411. Under the action of the guide slope 411, the locking rod 41 slides away from the fixing block 42 until the fixing block 42 is completely inserted into the fixing groove 251. At this time, under the action of the spring force of the abutment spring 51, the locking rod 41 slides toward the fixing block 42 until the locking rod 41 is completely inserted into the locking groove 421. At this time, both the locking rod 41 and the fixing block 42 are fixed, completing the fixed connection between the two adjacent cylinders 2.
[0040] The overlapping block 23 can also slide along the direction close to or away from the central axis of the cylinder 2. A connecting rod 6 is welded on the overlapping block 23. The side of the connecting rod 6 away from the overlapping block 23 is welded to the snap rod 41. A movable groove 26 for the connecting rod 6 to move is provided on the cylinder 2.
[0041] It is worth noting that when it is necessary to disconnect the fixed connection between the two cylinders 2, by moving the overlapping block 23, under the action of the connecting rod 6, the locking rod 41 slides away from the locking groove 421. When the locking rod 41 is completely disengaged from the locking groove 421, the connection between the two cylinders 2 can be disconnected by moving one of the cylinders 2.
[0042] To facilitate the control of the movement of the overlapping block 23, an operating groove 27 is provided on the groove wall of the overlapping groove 24. The operating groove 27 allows fingers to be inserted into the overlapping groove 24 and then pushed to push the overlapping block 23.
[0043] It is worth mentioning that an adjusting pipe 7 is provided at the inner end of the innermost cylinder 2, and a threaded sleeve 71 is fixedly connected inside the adjusting pipe 7. A threaded post 72 is threaded through one side of the threaded sleeve 71, and a knob 73 is fixedly connected to the end of the threaded post 72 near the cylinder 2. A contact plate 74 is fixedly connected to the end of the threaded post 72 away from the cylinder 2. Before installing the waterproof sealing structure for the pre-embedded hole, the depth of the pre-made hole is accurately measured. Based on the measured hole depth data, the appropriate position to which the contact plate 74 needs to be adjusted is determined to ensure that the contact plate is properly adjusted during subsequent installation. 74 can fit tightly against the innermost sidewall of the pre-made hole, providing a good fixing effect. According to the measurement results, the operator manually rotates the knob 73. Since the knob 73 is fixedly connected to the threaded column 72, rotating the knob 73 will drive the threaded column 72 to rotate synchronously. The threaded column 72 is threadedly engaged with the threaded sleeve 71 fixed in the adjusting tube 7. According to the principle of thread transmission, the rotating threaded column 72 will move along the axial direction of the threaded sleeve 71, thereby driving the contact plate 74 connected to the end of the threaded column 72 away from the cylinder 2 to move until the contact plate 74 reaches the appropriate position determined according to the measurement results.
[0044] It is worth emphasizing that a retaining ring 75 is fixedly connected to the side of the adjusting pipe 7 near the cylinder 2, and the retaining ring 75 is locked onto the inner surface of one end of the cylinder 2. After adjusting the position of the contact plate 74, align the retaining ring 75 on the side of the adjusting pipe 7 near the cylinder 2 with the inner surface of the innermost end of the cylinder 2 during installation, and then insert the adjusting pipe 7 into the cylinder 2, so that the retaining ring 75 is tightly locked onto the inner surface of the cylinder 2, completing the installation and fixing of the adjusting pipe 7 on the cylinder 2. At this time, the adjusted contact plate 74 is in the appropriate position, preparing for the subsequent installation and fixing of the entire pre-embedded hole waterproof sealing structure in the prefabricated hole; subsequently, the control plate 3 in the first cylinder 2 is installed first. With the control plate 3 in the remaining cylinder 2 in the retracted state, the fixing block 42 on the control plate 3 of the second cylinder 2 is aligned with the fixing groove 251 on the control ring 25 of the first cylinder 2. Under the action of the snap-fit rod 41 and the abutment spring 51, the fixing block 42 is firmly fixed in the fixing groove 251. The connection of the other cylinders 2 is completed in sequence. Finally, the control plate 3 in the first cylinder 2 is abutted against the wall or ground to complete the installation of the entire pre-embedded hole waterproof sealing structure. After installation, the contact plate 74 is in close contact with the innermost sidewall of the pre-made hole. The friction between the contact plate 74 and the cylinder 2 and the pre-made hole works together to enhance the stability of the entire sealing structure in the pre-made hole.
[0045] Working principle: Select the number of connecting bodies 1 according to the length of the pre-embedded hole. Then, the control plate 3 in the first cylinder 2 is in the abutting state, and the control plates 3 in the remaining cylinders 2 are in the storage state. Align the fixing block 42 on the control plate 3 of the second cylinder 2 with the fixing groove 251 on the control ring 25 of the first cylinder 2. Then, under the action of the snap-fit rod 41 and the abutting spring 51, the fixing block 42 is firmly fixed in the fixing groove 251, completing the fixed connection between the two cylinders 2. The connection of the other cylinders 2 is completed in sequence. Then, the control plate 3 in the first cylinder 2 is abutted against the wall or ground. Since it can be completely inserted into the cylinder 2 according to the actual situation, the friction between the cylinder 2 and the pre-made hole improves the stability of the sealing structure, replacing the structure that damages the wall or ground, such as screws, and achieving the effect of maintaining the integrity of the wall or ground.
[0046] Before installing the pre-embedded hole waterproof sealing structure, the depth of the pre-made hole is accurately measured. Based on the measured hole depth data, the appropriate position to which the contact plate 74 needs to be adjusted is determined to ensure that the contact plate 74 can fit tightly against the innermost sidewall of the pre-made hole during subsequent installation, thus playing a good fixing role. According to the measurement results, the operator manually rotates the knob 73. Since the knob 73 is fixedly connected to the threaded column 72, rotating the knob 73 will drive the threaded column 72 to rotate synchronously. The threaded column 72 is threadedly engaged with the threaded sleeve 71 fixed in the adjusting tube 7. According to the thread transmission principle, the rotating threaded column 72 will move along the axial direction of the threaded sleeve 71, thereby driving the contact plate 74 connected to the end of the threaded column 72 away from the cylinder 2 to move until the contact plate 74 reaches the appropriate position determined according to the measurement results.
[0047] After adjusting the position of the contact plate 74, align the retaining ring 75 on the side of the adjusting tube 7 closest to the cylinder 2 with the inner surface of the innermost end of the cylinder 2 during installation. Then, insert the adjusting tube 7 into the cylinder 2, ensuring the retaining ring 75 is tightly secured to the inner surface of the cylinder 2. This completes the installation and fixation of the adjusting tube 7 on the cylinder 2. At this point, the adjusted contact plate 74 is in the appropriate position, preparing for the subsequent installation and fixation of the entire pre-embedded hole waterproof sealing structure within the precast hole. Subsequently, the control plate 3 in the first cylinder 2 is in the abutting state, while the control plates 3 in the remaining cylinders 2 are in the retracted state. In this method, the fixing block 42 on the control plate 3 of the second cylinder 2 is aligned with the fixing groove 251 on the control ring 25 of the first cylinder 2. Under the action of the snap-fit rod 41 and the abutment spring 51, the fixing block 42 is firmly fixed in the fixing groove 251. The connection of the other cylinders 2 is completed in sequence. Finally, the control plate 3 in the first cylinder 2 is abutted against the wall or the ground to complete the installation of the entire pre-embedded hole waterproof sealing structure. After the installation is completed, the contact plate 74 is in close contact with the innermost sidewall of the precast hole. The friction between the contact plate 74 and the cylinder 2 and the precast hole works together to enhance the stability of the entire sealing structure in the precast hole.
[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pre-embedded hole waterproof sealing structure, comprising several connecting bodies (1), characterized in that: The connecting body (1) includes a cylinder (2) and several control plates (3) disposed on one side of the cylinder (2). The cylinder (2) has a through hole (21) along its length. The control plate (3) is rotatably connected to the opening of the hole (21). The control plate (3) has a contact state that is out of the cylinder (2) and a storage state that is stored inside the cylinder (2). The cylinder (2) is provided with a shielding plate (22) that completely blocks the opening of the hole (21). A control ring (25) is provided on the side of the cylinder (2) away from the control plate (3). The control plate (3) is provided with a fixing component (4) that fixes the control plate (3) to the control ring (25) on the adjacent cylinder (2) when the control plate (3) is in the storage state.
2. The pre-embedded hole waterproof sealing structure according to claim 1, characterized in that: The cylinder (2) has several overlapping blocks (23) on the side away from the control plate (3), and the cylinder (2) has an overlapping groove (24) on the side close to the control plate (3) for the overlapping blocks (23) to be inserted.
3. The pre-embedded hole waterproof sealing structure according to claim 1, characterized in that: The fixing component (4) includes a snap-fit rod (41) sliding on the control ring (25) and a fixing block (42) set on the control plate (3). The control ring (25) has a fixing groove (251) for the fixing block (42) to be inserted. The wall of the fixing groove (251) has a sliding groove (252) for the snap-fit rod (41) to slide along the direction close to or away from the central axis of the cylinder (2). The fixing block (42) has a snap-fit groove (421) for the snap-fit rod (41) to be inserted. The snap-fit rod (41) has a guide slope (411) for the fixing block (42) to abut against and control the snap-fit rod (41) to slide away from the fixing block (42). The control ring (25) is also provided with an elastic element (5) for controlling the snap-fit rod (41) to slide closer to the fixing block (42).
4. The pre-embedded hole waterproof sealing structure according to claim 3, characterized in that: The elastic element (5) is an abutment spring (51), one end of which abuts against the bottom of the sliding groove (252), and the other end of which abuts against the locking rod (41).
5. The pre-embedded hole waterproof sealing structure according to claim 2, characterized in that: The overlapping block (23) can slide on the cylinder (2). A connecting rod (6) is provided on the overlapping block (23). The side of the connecting rod (6) away from the overlapping block (23) is provided on the snap rod (41). The cylinder (2) is provided with a movable groove (26) for the connecting rod (6) to move.
6. The pre-embedded hole waterproof sealing structure according to claim 2, characterized in that: An operating groove (27) is provided on the wall of the overlapping groove (24).
7. The pre-embedded hole waterproof sealing structure according to claim 1, characterized in that: When the control plate (3) is in the contact state, the side of the control plate (3) closest to the cylinder (2) is in contact with one end face of the cylinder (2) along its length.
8. The pre-embedded hole waterproof sealing structure according to claim 1, characterized in that: When the control panel (3) is in the storage state, a stabilizing block (31) is provided on the side of the control panel (3) near the shield (22), and a stabilizing groove (221) for the stabilizing block (31) to be inserted is provided on the side of the shield (22) near the stabilizing block (31).
9. The pre-embedded hole waterproof sealing structure according to claim 1, characterized in that: An adjusting tube (7) is provided at the inner end of the innermost cylinder (2), and a threaded sleeve (71) is fixedly connected inside the adjusting tube (7). A threaded column (72) is threaded through one side of the threaded sleeve (71), and a knob (73) is fixedly connected at the end of the threaded column (72) near the cylinder (2). A contact plate (74) is fixedly connected at the end of the threaded column (72) away from the cylinder (2).
10. The pre-embedded hole waterproof sealing structure according to claim 9, characterized in that: The regulating tube (7) is fixedly connected to a retaining ring (75) on the side near the cylinder (2), and the retaining ring (75) is engaged on the inner surface of one end of the cylinder (2).