Post-cast strip self-drainage structure
By designing a self-drainage structure for the post-cast strip, and utilizing liquid guiding components and check valves, the problem of untimely drainage of accumulated water was solved, enabling the accumulated water to flow autonomously into the collection well, reducing labor costs and corrosion risks, and improving drainage efficiency and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI CIVIL ENG GRP CO LTD OF CREC
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, water accumulation in post-pouring strips is not drained in time during the pouring process, leading to corrosion and damage, and incurring significant labor costs.
Design a self-drainage structure for post-cast strips, including a liquid guiding component, a liquid extraction component, and a check valve. Through the setting of liquid guiding pipes and debris-proof components, the accumulated water can flow into the collection well autonomously. Combined with the design of the liquid extraction component and the check valve, it is ensured that the accumulated water flows into the collection well in one direction, preventing backflow and blockage by debris.
It enables timely removal of accumulated water, reduces labor costs, prevents corrosion of post-pouring strips, and improves drainage efficiency and equipment lifespan.
Smart Images
Figure CN224451694U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of drainage technology for post-cast strips, and more particularly to self-drainage structures for post-cast strips. Background Technology
[0002] When pouring concrete for a large-scale basement slab, in order to prevent structural settlement and temperature shrinkage, a post-pouring strip is set on the large-scale basement slab to divide it into several smaller basement slabs. The post-pouring strip is then poured at a predetermined time to complete the construction of the large-scale basement slab.
[0003] In some cases, before the post-cast strip is poured, it is completely sealed with nine layers of plywood to protect it from rainwater. However, due to the low elevation of the post-cast strip, rainwater can still enter through various pores and accumulate, eventually corroding the strip.
[0004] In existing technologies, water on the surface of the base slab is frequently swept manually into a collection well, and water pumps are frequently used manually to pump the water accumulated in the post-cast strip into the collection well for centralized drainage. This not only leads to untimely drainage of water in the post-cast strip but also incurs significant labor costs. Furthermore, the untimely drainage of water in the post-cast strip results in corrosion and damage to the strip. Utility Model Content
[0005] To address the aforementioned technical problems and achieve at least one advantage of this application, this application provides a self-draining structure for post-cast strips, wherein the self-draining structure for post-cast strips includes:
[0006] A plurality of base slabs, with post-cast strip spaces formed between adjacent base slabs, wherein at least one of the base slabs is cast to form at least one sump space; and
[0007] At least one liquid guiding assembly includes a liquid guiding pipe and a debris stopper. The liquid guiding pipe is embedded in one of the base plates near the water collection well space, and its two ends are respectively close to the post-cast strip space and the water collection well space. The liquid guiding pipe forms a liquid guiding channel, an inlet, and an outlet. The two ends of the liquid guiding channel are respectively connected to the post-cast strip space and the water collection well space through the inlet and the outlet. The bottom wall of the inlet in the gravity direction is not higher than the bottom wall of the post-cast strip space in the gravity direction. The height of the liquid guiding pipe in the gravity direction gradually decreases from near the post-cast strip space to near the water collection well space. The end of the liquid guiding pipe near the outlet extends into the water collection well space, and the end of the liquid guiding pipe near the outlet bends downward in the vertical direction. The debris stopper is provided at the outlet in a manner that prevents debris in the post-cast strip space from flowing into the liquid guiding channel through the inlet.
[0008] According to one embodiment of this application, the surfaces of adjacent base plates gradually increase in height in the direction of gravity from near the post-cast strip space to away from the post-cast strip space, and respectively form guide slopes.
[0009] According to one embodiment of this application, the bottom wall of the post-cast strip space gradually increases in height in the direction of gravity from near the liquid inlet to away from the liquid inlet.
[0010] According to one embodiment of this application, the self-draining structure of the post-cast strip further includes at least one liquid extraction component. The liquid extraction component includes a liquid extraction element and a liquid drainage pipe. The liquid extraction element is placed in the water collection well space. One end of the liquid drainage pipe is connected to the liquid extraction element, and the other end of the liquid drainage pipe is open to the outside.
[0011] According to one embodiment of this application, the self-draining structure of the post-cast strip further includes a check valve component. The check valve component includes a connecting body, a sealing ball, and a stopper. The connecting body has a communicating space. One end of the connecting body is connected to the outlet of the liquid guiding pipe in such a way that the communicating space is in communication with the outlet. The inner diameter of the communicating space of the connecting body gradually increases from near the outlet to away from the outlet to form an expansion plate. The connecting body extends from the end of the expansion plate away from the outlet in a direction away from the outlet. An extension ring is formed by extending the disk, and the extension ring together form a sealing space that is connected to the communicating space. The sealing space is connected to the water collection well space. The sealing ball is movably disposed in the sealing space in a manner that allows it to approach or move away from the communicating space. The diameter of the sealing ball is smaller than the inner diameter of the extension ring and larger than the inner diameter of the communicating space. The density of the sealing ball is smaller than the density of the water accumulated through the outlet. The abutment is disposed on the inner wall of the sealing space in a manner that prevents the sealing ball from falling out of the sealing space.
[0012] According to one embodiment of this application, the expansion disk of the connecting body is detachably threaded to the liquid guiding pipe.
[0013] According to one embodiment of this application, the abutment is implemented as a ring, and the abutment is detachably threaded to the inner wall of the sealing space. The check valve also includes a filter element, which is connected to the abutment in a manner that prevents debris in the water collection well space from entering the sealing space.
[0014] According to one embodiment of this application, the liquid guiding conduit is implemented as a steel pipe.
[0015] According to one embodiment of this application, both the impurity-stopping element and the impurity-filtering element are implemented to include a filter screen.
[0016] According to one embodiment of this application, the self-draining structure of the post-cast strip further includes a check valve, which is installed at the outlet of the liquid guiding pipe. Attached Figure Description
[0017] Figure 1 A perspective view of a preferred embodiment of this application is shown.
[0018] Figure 2 A cross-sectional view of a preferred embodiment of this application is shown.
[0019] Figure 3 It shows Figure 2 A magnified view of a portion of point A in the diagram.
[0020] Figure 4 It shows Figure 2 A magnified view of a portion of point B in the diagram. Detailed Implementation
[0021] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.
[0022] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.
[0023] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0024] refer to Figures 1 to 4 The self-drainage structure of the post-cast strip according to a preferred embodiment of the present application will be described in detail below, wherein the self-drainage structure of the post-cast strip includes a plurality of base plates 10 and at least one liquid guiding component 20.
[0025] Specifically, a post-cast strip space 101 is formed between adjacent base plates 10. At least one of the base plates 10 is cast to form at least one water collection well space 102.
[0026] The liquid guiding assembly 20 includes a liquid guiding pipe 21 and a debris stop 22. The liquid guiding pipe 21 is embedded in one of the base plates 10 near the water collection well space 102, and its two ends are respectively close to the post-cast strip space 101 and the water collection well space 102. The liquid guiding pipe 21 forms a liquid guiding channel 2101, a liquid inlet 2102, and a liquid outlet 2103. The two ends of the liquid guiding channel 2101 are connected to the post-cast strip space 101 and the water collection well space 102 through the liquid inlet 2102 and the liquid outlet 2103, respectively. The bottom wall of the liquid inlet 2102 in the gravity direction is not higher than the bottom wall of the post-cast strip space 101 in the gravity direction, so that the water accumulated in the post-cast strip space 101 can enter the liquid guiding channel 2101 through the liquid inlet 2102. The height of the liquid guiding pipe 21 gradually decreases in the direction of gravity from near the post-cast strip space 101 to near the water collection well space 102, so that the accumulated water entering the liquid guiding channel 2101 can flow autonomously to the outlet 2103 and flow into the water collection well space 102. The end of the liquid guiding pipe 21 near the outlet 2103 is kept extending into the water collection well space 102, and the end of the liquid guiding pipe 21 near the outlet 2103 is bent downward in the vertical direction so that the outlet 2103 faces the bottom wall of the water collection well space 102, preventing the accumulated water flowing out of the outlet 2103 from washing away the side wall of the water collection well space 102, thereby preventing the side wall of the water collection well space 102 from being corroded by the accumulated water for a long time, and thus extending the service life of the inner wall of the water collection well space 102.
[0027] The debris stopper 22 is provided at the liquid outlet 2103 in a manner that prevents debris in the post-cast strip space 101 from flowing into the liquid guiding channel 2101 through the liquid inlet 2102, so as to prevent debris from blocking the liquid guiding channel 2101.
[0028] Understandably, since the water accumulated in the post-cast strip space 101 can autonomously flow through the impurity stop 22, the liquid inlet 2102, the liquid guiding channel 2101, and the liquid outlet 2103 sequentially to the water collection well space 102, the water in the post-cast strip space 101 can be autonomously cleaned. This allows for timely removal of the water in the post-cast strip space 101, preventing corrosion and damage to the post-cast strip. Furthermore, compared to the method of frequently using a water pump to remove water from the post-cast strip space 101, the autonomous drainage structure of the post-cast strip reduces labor costs.
[0029] The liquid guiding pipe 21 is constructed by including a steel pipe to extend its service life. Furthermore, by embedding the liquid guiding pipe 21 within the base plate 10, the overall strength of the base plate 10 is enhanced.
[0030] Furthermore, the impurity-stopping component 22 is implemented to include a filter screen, so as to prevent debris in the post-cast strip space 101 from flowing into the liquid inlet 2102 with the accumulated water and getting stuck in the liquid guiding channel 2101, thereby preventing the liquid guiding channel 2101 from being blocked and causing poor drainage.
[0031] Preferably, the surfaces of adjacent base plates 10 gradually increase in height in the direction of gravity from near the post-cast strip space 101 to away from the post-cast strip space 101, and each forms a guide slope 11, so that water on the surface of the guide slope 11 of the adjacent base plates 10 can flow into the post-cast strip space 101 autonomously.
[0032] It is understandable that, due to the formation of the guide slope 11, there is no need for frequent manual cleaning of the water surface of the guide slope 11, thus reducing the cost of manual cleaning. At the same time, since the water on the surface of the guide slope 11 adjacent to the base plate 10 can flow into the post-cast strip space 101 autonomously, the overall autonomous drainage capacity of the post-cast strip autonomous drainage structure can be improved.
[0033] Preferably, the bottom wall of the post-cast strip space 101 gradually increases in height in the direction of gravity from near the liquid inlet 2102 to away from the liquid inlet 2102, so that the water accumulated in the post-cast strip space 101 can flow into the liquid inlet 2102 autonomously, thereby improving the overall autonomous drainage capacity of the post-cast strip autonomous drainage structure.
[0034] In this embodiment, the self-draining structure of the post-cast strip further includes at least one pumping assembly 30. The pumping assembly 30 includes a pumping element 31 and a draining pipe 32. The pumping element 31 is placed in the water collection well space 102, one end of the draining pipe 32 is connected to the pumping element 31, and the other end of the draining pipe 32 opens to the outside, so that the water accumulated in the water collection well space 102 can be discharged to a predetermined location to the outside through the draining pipe 32 by the pumping of the pumping element 31.
[0035] As an example, the pumping unit 31 is implemented to include a submersible sewage pump with a level float, so that when the water in the water collection well space 102 reaches a predetermined depth, the pumping unit 31 is activated to pump the water in the water collection well space 102 to be discharged to a predetermined location outside through the drainage pipe 32.
[0036] It should be noted that when the water depth in the water collection well space 102 is less than the height of the suction port of the liquid extraction component 31 in the direction of gravity, and the liquid extraction component 31 is activated, the liquid extraction component 31 may be damaged due to idling. Therefore, the liquid extraction component 31 will only be activated when the water depth in the water collection well space 102 is not lower than the height of the suction port of the liquid extraction component 31 in the direction of gravity.
[0037] In other words, the water collection well space 102 always maintains a predetermined amount of water, which can buffer the impact of the water discharged from the outlet 2103 into the water collection well space 102 and prevent the water discharged from the outlet 2103 into the water collection well space 102 from impacting the bottom wall of the water collection well space 102 and causing corrosion damage to it.
[0038] In this embodiment, the self-draining structure of the post-cast strip further includes a check valve 40. The check valve 40 includes a connecting body 41, a sealing ball 42, and a stopper 43. The connecting body 41 has a communicating space 4101, and one end of the connecting body 41 is connected to the liquid outlet 2103 of the liquid guiding pipe 21 in such a way that the communicating space 4101 is in communication with the liquid outlet 2103. The inner diameter of the communicating space 4101 of the connecting body 41 gradually increases from near the liquid outlet 2103 to away from the liquid outlet 2103 to form an expansion plate 411. The connecting body 41 extends from the end of the expansion plate 411 away from the liquid outlet 2103 in a direction away from the liquid outlet 2103 to form an extension ring 412, and the expansion plate 411 and the extension ring 412 together form a sealing space 4102 that is in communication with the communicating space 4101. The sealing space 4102 is connected to the water collection well space 102.
[0039] The sealing ball 42 is movably disposed in the sealing space 4102 in a manner that allows it to approach and move away from the communicating space 4101. The diameter of the sealing ball 42 is smaller than the inner diameter of the extension ring 412 but larger than the inner diameter of the communicating space 4101, so that when the sealing ball 42 approaches the communicating space 4101, it seals the communicating space 4101, and when the sealing ball 42 moves away from the communicating space 4101, it allows the communicating space 4101 to communicate with the sealing space 4102. The density of the sealing ball 42 is less than the density of the water accumulated through the outlet 2103.
[0040] The blocking member 43 is disposed on the inner wall of the sealing space 4102 in such a way as to prevent the blocking ball 42 from falling from the sealing space 4102.
[0041] As an example, when water flows through the outlet 2103 and into the sealing space 4102 from the connecting space 4101, since the diameter of the sealing ball 42 is smaller than the inner diameter of the extension ring 412, the water will flow between the sealing space 4102 and the sealing ball 42 and into the water collection well space 102.
[0042] Furthermore, as the water in the collection well space 102 gradually increases and enters the sealing space 4102, since the density of the sealing ball 42 is less than the density of the water, the sealing ball 42 will be carried upward by the water and float up. This sealing ball 42 will then seal the connecting space 4101, allowing the water in the post-cast strip space 101 to flow into the collection well space 102 in only one direction. This prevents the water entering the collection well space 102 from flowing back into the post-cast strip space 101, thus further ensuring the drainage of the water in the post-cast strip space 101.
[0043] The expansion plate 411 of the connecting body 41 is detachably threaded to the liquid guiding pipe 21 to facilitate the disassembly and repair of the connecting body 41.
[0044] Preferably, the abutment 43 is implemented as a ring, and the abutment 43 is detachably threaded to the inner wall of the sealing space 4102 so that the sealing ball 42 can be taken out and put into the sealing space 4102 by separating the abutment 43 from the inner wall of the sealing space 4102.
[0045] Preferably, the check valve 40 further includes a filter element 44. The filter element 44 is connected to the stop member 43 in a manner that prevents debris in the water collection well space 102 from entering the sealing space 4102.
[0046] As an example, the filter element 44 is provided to prevent debris from entering the sealing space 4102 and hindering the movement of the sealing ball 42 in the sealing space 4102, thereby preventing the sealing ball 42 from failing to seal the sealing space 4102 due to debris obstruction, and providing protection against the backflow of water in the water collection well space 102 into the post-pouring strip space 101.
[0047] When accumulated water passes through the outlet 2103 and enters the sealing space 4102 from the connecting space 4101, the sealing ball 42 will fall onto the filter element 44. Under the obstruction of the filter element 44, the accumulated water in the sealing space 4102 will not be able to flow into the water collection well space 102 because the sealing ball 42 is attached to the blocking element 43.
[0048] Preferably, the filter element 44 is implemented to include a filter screen.
[0049] In another modified embodiment, the self-draining structure of the post-cast strip further includes a check valve 40. The check valve 40 is implemented as a check valve and is installed at the outlet 2103 of the liquid guiding pipe 21 to prevent the water in the water collection well space 102 from flowing back into the post-cast strip space 101 as the water in the water collection well space 102 gradually increases.
[0050] Those skilled in the art should understand that the embodiments of this application described above and shown in the accompanying drawings are merely examples and do not limit the scope of this application. The advantages of this application have been fully and effectively implemented. The functional and structural principles of this application have been demonstrated and explained in the embodiments, and any variations or modifications can be made to the implementation of this application without departing from the stated principles.
Claims
1. A post-cast strip self-draining construction, characterized in that, The self-drainage structure of the post-cast strip includes: A plurality of base slabs, with post-cast strip spaces formed between adjacent base slabs, wherein at least one of the base slabs is cast to form at least one sump space; and At least one liquid guiding assembly includes a liquid guiding pipe and a debris stopper. The liquid guiding pipe is embedded in one of the base plates near the water collection well space, and its two ends are respectively close to the post-cast strip space and the water collection well space. The liquid guiding pipe forms a liquid guiding channel, an inlet, and an outlet. The two ends of the liquid guiding channel are respectively connected to the post-cast strip space and the water collection well space through the inlet and the outlet. The bottom wall of the inlet in the gravity direction is not higher than the bottom wall of the post-cast strip space in the gravity direction. The height of the liquid guiding pipe in the gravity direction gradually decreases from near the post-cast strip space to near the water collection well space. The end of the liquid guiding pipe near the outlet extends into the water collection well space, and the end of the liquid guiding pipe near the outlet bends downward in the vertical direction. The debris stopper is provided at the outlet in a manner that prevents debris in the post-cast strip space from flowing into the liquid guiding channel through the inlet.
2. The post-cast strip autonomous drainage structure according to claim 1, wherein, The surfaces of the adjacent base plates gradually increase in height in the direction of gravity from the area near the post-cast strip space to the area away from the post-cast strip space, and each forms a guide slope.
3. The post-cast strip autonomous drainage structure according to claim 2, wherein, The bottom wall of the post-cast strip space gradually increases in height along the direction of gravity from near the inlet to far away from the inlet.
4. The post-cast strip autonomous drainage structure according to claim 3, characterized in that, The self-drainage structure of the post-cast strip also includes at least one liquid extraction component, which includes a liquid extraction element and a liquid drainage pipe. The liquid extraction element is placed in the water collection well space, one end of the liquid drainage pipe is connected to the liquid extraction element, and the other end of the liquid drainage pipe is open to the outside.
5. The post-cast strip autonomous drainage structure according to claim 4, characterized in that, The self-drainage structure of the post-cast strip also includes a check valve, which comprises a connecting body, a sealing ball, and a stopper. The connecting body has a communicating space, and one end of the connecting body is connected to the outlet of the liquid guiding pipe in such a way that the communicating space is in communication with the outlet. The inner diameter of the communicating space of the connecting body gradually increases from near the outlet to away from the outlet to form an expansion plate. The connecting body extends from the end of the expansion plate away from the outlet in a direction away from the outlet to form an extension plate. The extension ring, the expansion disk, and the extension ring together form a sealing space that is connected to the communicating space. The sealing space is connected to the water collection well space. The sealing ball is movably disposed in the sealing space in a manner that allows it to approach or move away from the communicating space. The diameter of the sealing ball is smaller than the inner diameter of the extension ring and larger than the inner diameter of the communicating space. The density of the sealing ball is smaller than the density of the water accumulated through the outlet. The abutment is disposed on the inner wall of the sealing space in a manner that prevents the sealing ball from falling out of the sealing space.
6. The post-cast strip autonomous drainage structure according to claim 5, wherein, The expansion plate of the connecting body is detachably threaded to the liquid guiding pipe.
7. The self-drainage structure of the post-cast strip according to claim 6, characterized in that, The stop member is implemented as a ring, and the stop member is detachably threaded to the inner wall of the sealing space. The check member also includes a filter element, which is connected to the stop member in a manner that prevents debris in the water collection well space from entering the sealing space.
8. The post-cast strip autonomous drainage structure according to claim 7, characterized in that, The fluid conduit is implemented by including a steel pipe.
9. The post-cast strip autonomous drainage construction of claim 8, wherein, Both the impurity-blocking element and the impurity-filtering element include a filter screen.
10. The post-cast strip autonomous drainage construction of claim 4, wherein, The self-drainage structure of the post-cast strip also includes a check valve, which is installed at the outlet of the liquid guiding pipe.