Outer wall rain simulation device

Abstract

The utility model relates to the technical field of building material detection equipment, and discloses an outer wall rain simulation device, which comprises a rain testing machine main body, a water outlet pipe arranged at the output end of the rain testing machine main body, a support frame arranged right below the water outlet pipe and a placing frame arranged at the top of the support frame, and a bottom positioning frame is arranged on the surface of the placing frame. By means of the top positioning frame and the bottom positioning frame, when a wall to be tested is fixed, the periphery of the front face and the periphery of the back face of the wall are sealed, water is prevented from flowing into the back of the wall from the edge in the water spraying process, in addition, a sealing assembly and a sealing rod are arranged, a bolt can be rotated to drive a sealing plate to slide, and the pressure intensity in all sealing grooves is controlled; the top positioning frame can stably slide towards the bottom positioning frame, so that the bottom of the top silica gel sealing frame is attached to the surface of the wall, and the overall stable attaching mode effectively avoids local gaps, greatly improves the sealing performance, prevents test leakage and ensures that the test result is accurate.

Description

Technical Field

[0001] This utility model relates to the field of building material testing equipment technology, and more specifically to an exterior wall rain simulation device. Background Technology

[0002] With the continuous development of the construction industry, the requirements for the waterproof performance of exterior walls are increasing. Currently, the main testing methods for the waterproof performance of exterior walls include on-site water spray tests and laboratory simulation tests.

[0003] While on-site water spray tests can visually demonstrate the waterproofing status of exterior walls in actual use environments, they have significant drawbacks. On the one hand, this method is greatly affected by environmental factors; whether it is scorching sun, cold wind, or strong wind, all of these factors can interfere with the test results. On the other hand, it cannot precisely control test conditions, such as water spray intensity, time, and angle. This results in poor accuracy and comparability of the test results, making it difficult to truly reflect the waterproofing performance of exterior walls.

[0004] Laboratory simulation tests can control test conditions to a certain extent. However, existing testing devices have many problems. For example, the spraying system is uneven and cannot simulate rainfall under different wind directions. The fixation and sealing effect on the specimens is also not ideal. These shortcomings make it impossible for the test results to truly and accurately reflect the waterproof performance of the exterior wall.

[0005] The application of rain testing machines effectively overcomes the drawbacks of on-site water spray tests. They typically operate indoors, completely isolating them from the interference of natural weather changes, ensuring that each test is conducted under stable temperature and humidity conditions, thus avoiding deviations in test results caused by weather conditions. However, if the exterior wall of the building to be tested is placed directly on the rack of the rain testing machine, water can easily flow from the edge of the wall to the back, causing a large area of ​​the back of the wall to become wet. Once leakage occurs, it is difficult to accurately locate the actual leakage point, leading to incorrect test conclusions and seriously affecting the accuracy of the exterior wall waterproofing performance test. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an external wall rain simulation device to solve the problems existing in the background art.

[0007] This utility model provides the following technical solution: an external wall rain simulation device, including a rain test machine body, a water outlet pipe installed at the output end of the rain test machine body, a support frame placed directly below the water outlet pipe, and a placement frame installed on top of the support frame. A bottom positioning frame is placed on the surface of the placement frame, a bottom silicone sealing frame is fixedly connected to the inner wall of the bottom positioning frame, a hanging ring is fixedly connected to the bottom of the bottom positioning frame, sealing components are installed at the four inner corners of the bottom positioning frame, a negative pressure component is installed inside the bottom positioning frame, a top positioning frame is attached to the upper surface of the bottom positioning frame, sealing rods are fixedly connected to the four bottom corners of the top positioning frame, a top silicone sealing frame is fixedly connected to the bottom of the top positioning frame, and drain pipes are fixedly connected at equal intervals inside the top positioning frame.

[0008] The sealing assembly includes a sealing tube fixedly connected inside the bottom positioning frame, a sealing groove is provided inside the sealing tube, a connecting pipe is fixedly connected to the outer surface of the sealing tube, and a DC one-way valve is fixedly installed inside the sealing tube.

[0009] The negative pressure assembly includes a fixed box fixedly connected inside the bottom positioning frame. The fixed box has a sealed cavity inside. A sealing plate is slidably connected inside the sealed cavity. A turntable is rotatably connected inside the sealing plate. A bolt is fixedly connected to the center of the surface of the turntable. A vent hole is opened on the surface of the fixed box. A vent pipe is fixedly connected to the surface of the fixed box away from the vent hole.

[0010] Furthermore, the lifting ring is fixedly tied to the surface of the placement frame with cable ties, and water nozzles are evenly spaced on the surface of the water outlet pipe.

[0011] Furthermore, a sealing ring is fixedly installed on the outer surface of the sealing rod, and the outer surface of the sealing rod is sealed and inserted into the inside of the sealing groove, the top end of the sealing groove being arc-shaped.

[0012] Furthermore, both the sealing plate and the sealing cavity are square, and a rubber sealing ring is fixedly installed on the outer surface of the sealing plate. The end of the sealing cavity near the vent pipe is connected to the interior of the connecting pipe through the vent pipe.

[0013] Furthermore, the interior of the sealing groove is connected to the exterior of the sealing tube via a DC one-way valve, and the output end of the DC one-way valve is away from the interior of the sealing groove, extending to the bottom of the bottom positioning frame.

[0014] Furthermore, the outer surface of the bolt is threaded into the interior of the fixed box, one end of the bolt near the turntable is rotatably connected to the interior of the sealing plate, and the other end of the bolt extends to the exterior of the fixed box.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] This invention, by setting a top positioning frame and a bottom positioning frame, can seal the front and back of the wall when fixing it to the wall to be tested. When water is sprayed, water will not flow through the edges of the wall to the back, which helps to accurately locate the actual leakage point of the wall and provides an accurate basis for subsequent targeted waterproofing improvements. By setting a sealing component and a sealing rod, the sealing plate can be slid when the bolt is turned, which can simultaneously control the internal pressure of all sealing grooves. When the inside of the sealing groove is under negative pressure, the top positioning frame can slide smoothly towards the bottom positioning frame, so that the bottom of the top silicone sealing frame can simultaneously adhere to the wall surface. This overall smooth sliding and adhering method can effectively avoid gaps caused by poor local adhesion, greatly improve the sealing performance of the top silicone sealing frame to the wall, prevent leakage during the test, and ensure the accuracy of the test results. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an exploded view of the bottom positioning frame and the top positioning frame in this utility model;

[0019] Figure 3 This is a cross-sectional view of the sealing component in this utility model;

[0020] Figure 4 This is a cross-sectional view of the negative pressure component in this utility model.

[0021] The attached diagram is labeled as follows: 1. Main body of the rain test chamber; 2. Water outlet pipe; 3. Support frame; 4. Placement frame; 5. Bottom positioning frame; 6. Bottom silicone sealing frame; 7. Lifting ring; 8. Sealing assembly; 81. Sealing pipe; 82. Sealing groove; 83. Connecting pipe; 84. DC one-way valve; 9. Negative pressure assembly; 91. Fixing box; 92. Sealing cavity; 93. Vent hole; 94. Bolt; 95. Sealing plate; 96. Vent pipe; 97. Turntable; 10. Top positioning frame; 11. Sealing rod; 12. Top silicone sealing frame; 13. Drain pipe. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0023] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-4 The present invention will be further described below.

[0024] Specifically, the exterior wall rain simulation device includes a rain test machine body 1, a water outlet pipe 2 installed at the output end of the rain test machine body 1, a support frame 3 placed directly below the water outlet pipe 2, and a placement frame 4 installed on top of the support frame 3. A bottom positioning frame 5 is placed on the surface of the placement frame 4, a bottom silicone sealing frame 6 is fixedly connected to the inner wall of the bottom positioning frame 5, a hanging ring 7 is fixedly connected to the bottom of the bottom positioning frame 5, and sealing components 8 are installed at the four corners inside the bottom positioning frame 5. The sealing components 8 include a sealing ring fixedly connected inside the bottom positioning frame 5. The sealing tube 81 has a sealing groove 82 inside, a connecting tube 83 is fixedly connected to the outer surface of the sealing tube 81, a DC one-way valve 84 is fixedly installed inside the sealing tube 81, a negative pressure component 9 is installed inside the bottom positioning frame 5, a top positioning frame 10 is attached to the upper surface of the bottom positioning frame 5, a sealing rod 11 is fixedly connected to the four bottom corners of the top positioning frame 10, a top silicone sealing frame 12 is fixedly connected to the bottom of the top positioning frame 10, and a drain pipe 13 is fixedly connected at equal intervals inside the top positioning frame 10.

[0025] The negative pressure component 9 includes a fixed box 91 fixedly connected inside the bottom positioning frame 5. The fixed box 91 has a sealed cavity 92 inside. A sealing plate 95 is slidably connected inside the sealed cavity 92. A turntable 97 is rotatably connected inside the sealing plate 95. A bolt 94 is fixedly connected at the center of the surface of the turntable 97. A vent hole 93 is opened on the surface of the fixed box 91. A vent pipe 96 is fixedly connected to the surface of the fixed box 91 away from the vent hole 93.

[0026] In this implementation scheme, by setting the top positioning frame 10 and the bottom positioning frame 5, the front and back sides of the wall can be sealed when the wall to be tested is fixed. When water is sprayed, water will not flow through the edges of the wall to the back of the wall. This helps to accurately locate the actual leakage point of the wall and provides an accurate basis for subsequent targeted waterproofing improvements. By setting the sealing component 8 and the sealing rod 11, when the bolt 94 is turned, the sealing plate 95 can be moved to slide. This allows for simultaneous control of the internal pressure of all sealing grooves 82. When the sealing groove 82 is under negative pressure, the top positioning frame 10 can slide smoothly towards the bottom positioning frame 5, allowing the bottom of the top silicone sealing frame 12 to simultaneously adhere to the wall surface. This overall smooth sliding and adhering method can effectively avoid gaps caused by poor local adhesion, greatly improving the sealing performance of the top silicone sealing frame 12 to the wall, preventing leakage during the test, and ensuring the accuracy of the test results.

[0027] Specifically, the lifting ring 7 is fixed to the surface of the placement rack 4 by cable ties, and water nozzles are evenly arranged on the surface of the water outlet pipe 2.

[0028] In this embodiment, by setting the lifting ring 7, it is easy to fix the bottom positioning frame 5 to the placement frame 4.

[0029] Specifically, a sealing ring is fixedly installed on the outer surface of the sealing rod 11, and the outer surface of the sealing rod 11 is inserted into the inside of the sealing groove 82. The top of the inside of the sealing groove 82 is arc-shaped.

[0030] In this embodiment, by setting a sealing ring, the sealing performance between the sealing rod 11 and the sealing groove 82 can be enhanced.

[0031] Specifically, both the sealing plate 95 and the sealing cavity 92 are square. A rubber sealing ring is fixedly installed on the outer surface of the sealing plate 95. The end of the sealing cavity 92 near the vent pipe 96 is connected to the interior of the connecting pipe 83 through the vent pipe 96.

[0032] In this embodiment, since both the sealing plate 95 and the sealing cavity 92 are square, rotating the bolt 94 allows the sealing plate 95 to slide stably inside the sealing cavity 92.

[0033] Specifically, the interior of the sealing groove 82 is connected to the exterior of the sealing tube 81 through a DC one-way valve 84. The output end of the DC one-way valve 84 is far away from the interior of the sealing groove 82 and extends to the bottom of the bottom positioning frame 5.

[0034] In this embodiment, by setting a DC one-way valve 84, it is easy to insert the sealing rod 11 into the sealing groove 82.

[0035] Specifically, the outer surface of the bolt 94 is threaded into the interior of the fixed box 91, one end of the bolt 94 near the turntable 97 is rotatably connected to the interior of the sealing plate 95, and the other end of the bolt 94 extends to the exterior of the fixed box 91.

[0036] In this embodiment, by setting up a turntable 97, the sealing plate 95 can be prevented from rotating when the bolt 94 rotates, while also providing tension on the sealing plate 95.

[0037] The model number of the main body 1 of the rain test machine is: BJ-IP-BG.

[0038] The working principle and usage process of this utility model are as follows: First, the hanging ring 7 is fixed to the placement frame 4 using cable ties. At this time, the bottom of the bottom positioning frame 5 is attached to the surface of the placement frame 4. Then, the outer wall to be tested is cut to approximately the same size as the bottom silicone sealing frame 6, so that after the outer wall is placed inside the bottom positioning frame 5, the bottom of the outer wall can fit against the surface of the bottom silicone sealing frame 6. Before placing the outer wall inside the bottom positioning frame 5, an absorbent object can be placed inside the bottom positioning frame 5, for example, so that after the outer wall is placed on the surface of the bottom silicone sealing frame 6, the bottom of the outer wall can contact the absorbent object. Then, the sealing rod 11 is inserted into the sealing groove 82. At this time, the air inside the sealing groove 82 is directly circulated through a direct current... One-way valve 84 discharges, and then by rotating bolt 94, sealing plate 95 is slid away from vent pipe 96. The inside of sealing cavity 92 is under negative pressure, and the inside of sealing groove 82 is also under negative pressure through vent pipe 96 and connecting pipe 83. At this time, sealing rod 11 slides into the depth of sealing groove 82 until the surface of top silicone sealing frame 12 is tightly against the surface of the outer wall. At this time, the outer wall is fixed. Then, the placement rack 4 is adjusted to a suitable angle, and the water outlet pipe 2 is adjusted to a suitable angle and water flow. After the surface of the outer wall is sprayed with water, the rainwater accumulated on the surface is directly discharged through drain pipe 13, avoiding the long-term accumulation of rainwater on the surface of the outer wall and the occurrence of seepage, thus improving the accuracy of test results.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. An external wall rain simulation device, comprising a rain test machine body (1), a water outlet pipe (2) installed at the output end of the rain test machine body (1), a support frame (3) placed directly below the water outlet pipe (2), and a placement frame (4) installed on top of the support frame (3), characterized in that: The surface of the placement rack (4) is provided with a bottom positioning frame (5), the inner wall of the bottom positioning frame (5) is fixedly connected with a bottom silicone sealing frame (6), the bottom of the bottom positioning frame (5) is fixedly connected with a hanging ring (7), the four corners of the bottom positioning frame (5) are equipped with sealing components (8), the inside of the bottom positioning frame (5) is equipped with a negative pressure component (9), the upper surface of the bottom positioning frame (5) is attached to a top positioning frame (10), the four corners of the bottom of the top positioning frame (10) are fixedly connected with sealing rods (11), the bottom of the top positioning frame (10) is fixedly connected with a top silicone sealing frame (12), and the inside of the top positioning frame (10) is fixedly connected with drain pipes (13) at equal intervals. The sealing assembly (8) includes a sealing tube (81) fixedly connected inside the bottom positioning frame (5), a sealing groove (82) is provided inside the sealing tube (81), a connecting tube (83) is fixedly connected to the outer surface of the sealing tube (81), and a DC one-way valve (84) is fixedly installed inside the sealing tube (81). The negative pressure component (9) includes a fixed box (91) fixedly connected inside the bottom positioning frame (5). The fixed box (91) has a sealed cavity (92) inside. A sealing plate (95) is slidably connected inside the sealed cavity (92). A turntable (97) is rotatably connected inside the sealing plate (95). A bolt (94) is fixedly connected at the center of the surface of the turntable (97). A vent hole (93) is opened on the surface of the fixed box (91). A vent pipe (96) is fixedly connected to the surface of the fixed box (91) away from the vent hole (93).

2. The external wall rain simulation device according to claim 1, characterized in that: The lifting ring (7) is fixedly tied to the surface of the placement frame (4) by cable ties, and water nozzles are equidistantly arranged on the surface of the water outlet pipe (2).

3. The external wall rain simulation device according to claim 1, characterized in that: A sealing ring is fixedly installed on the outer surface of the sealing rod (11), and the outer surface of the sealing rod (11) is sealed and inserted into the inside of the sealing groove (82). The top of the inside of the sealing groove (82) is arc-shaped.

4. The external wall rain simulation device according to claim 1, characterized in that: Both the sealing plate (95) and the sealing cavity (92) are square. A rubber sealing ring is fixedly installed on the outer surface of the sealing plate (95). The end of the sealing cavity (92) near the vent pipe (96) is connected to the interior of the connecting pipe (83) through the vent pipe (96).

5. The external wall rain simulation device according to claim 1, characterized in that: The interior of the sealing groove (82) is connected to the exterior of the sealing tube (81) through a DC one-way valve (84). The output end of the DC one-way valve (84) is far away from the interior of the sealing groove (82) and extends to the bottom of the bottom positioning frame (5).

6. The external wall rain simulation device according to claim 1, characterized in that: The outer surface of the bolt (94) is threaded to the inside of the fixed box (91), and one end of the bolt (94) near the turntable (97) is rotatably connected to the inside of the sealing plate (95). The other end of the bolt (94) extends to the outside of the fixed box (91).

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