Fabricated wallboard joint waterproof detection equipment and detection method

Abstract

The invention discloses a waterproof detection device for a joint of a fabricated wallboard. The waterproof detection device comprises an attachment bracket fixed on a wall between adjacent windows; the spraying device is arranged on the attachment bracket and is connected with a water source; and the spraying control device is connected with the spraying device. The invention further discloses an assembly type wallboard joint waterproof detection method which comprises the following steps: 1) after assembly type wallboard joint construction is completed and a sealant is cured, selecting a joint to be detected on the outdoor side of a wall body; (2) the attachment support is fixed to the wall between the adjacent windows, the spraying device is made to directly face the joint to be detected, and the spraying device is connected with a water source; (3) a spraying control device adjusts proper water pressure and water flow, a spraying device is controlled to spray water to the selected joint, and the continuous water spraying time is not less than 5 min; and (4) after water spraying is finished, whether leakage exists at the joint seam or not is checked on the indoor side of the water spraying part, and if leakage exists, the leakage position and characteristics should be recorded.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated buildings, and in particular to a prefabricated wall panel joint waterproof detection device and a detection method. Background Art

[0002] Compared with traditional cast-in-place buildings, there are a large number of joints between the prefabricated wall panels of prefabricated buildings that need to be waterproofed and sealed. The waterproofing problem of the joints of the exterior walls of prefabricated houses not only affects the use function of the house, but also seriously affects the durability and safety of the engineering structure itself over time. The waterproofing and airtightness of the joints is the key point of quality control of construction projects. In order to effectively control the construction quality of waterproof sealing at the joints of prefabricated wall panels, relevant standards such as the "Technical Code for Prefabricated Concrete Structures" (JGJ1-2014) and the "Technical Standard for Testing Prefabricated Residential Buildings" (JGJ / T 485-2019) have proposed the use of on-site water spraying tests to test the waterproof performance of joints, but these specifications do not provide effective testing equipment and test methods. At present, there is no equipment or method that can effectively detect the waterproof performance of prefabricated wall panel joints. Summary of the invention

[0003] The purpose of the present invention is to provide a prefabricated wall panel joint waterproof detection device and detection method to solve the above-mentioned deficiencies and defects of the prior art.

[0004] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0005] An assembled wall panel joint waterproof detection device, comprising:

[0006] An attachment bracket fixed to the wall between adjacent windows;

[0007] A spray device disposed on the attachment bracket, the spray device being connected to a water source;

[0008] A spray control device connected to the spray device.

[0009] In a preferred embodiment of the present invention, the attachment bracket includes a spray connector connected to the spray device and a clamping assembly connected to the spray connector.

[0010] In a preferred embodiment of the present invention, the spray connection member comprises a crossbeam, and the spray device is assembled on the crossbeam via a position adjustment component.

[0011] In a preferred embodiment of the present invention, the clamping assembly includes a pair of telescopic rods respectively arranged at two ends of the beam, and a clamping rod is respectively arranged at two ends of each telescopic rod.

[0012] In a preferred embodiment of the present invention, a clamping component is provided at one end of the clamping rod close to the window wall.

[0013] In a preferred embodiment of the present invention, the clamping component includes a clamping support movably arranged on the clamping rod and a clamping screw arranged on the clamping support.

[0014] In a preferred embodiment of the present invention, the spray control device comprises:

[0015] a hose connected between the spray device and a water source;

[0016] A pressure transmitter disposed on the hose;

[0017] An electromagnetic flowmeter disposed on the hose;

[0018] A high-pressure ball valve switch provided on the hose;

[0019] A mobile control terminal connected to the pressure transmitter, electromagnetic flowmeter, and high-pressure ball valve switch.

[0020] In a preferred embodiment of the present invention, the water source comprises a portable water tank for containing water, and a submersible pump is arranged in the portable water tank.

[0021] A method for detecting waterproof joints of assembled wall panels, using an assembled wall panel joint waterproof detection device as described in any of the above technical solutions, comprises the following steps:

[0022] 1) After the joint construction of the prefabricated wall panels is completed and the sealant is cured, select the joint to be tested on the outdoor side of the wall. The length of the joint covered by water should be no less than 1.5m;

[0023] 2) The attachment bracket is fixed on the wall between adjacent windows so that the spray device faces the joint to be inspected and the spray device is connected to the water source;

[0024] 3) The spray control device adjusts the appropriate water pressure and water flow, controls the spray device to spray water on the selected joints, and the continuous spraying time is not less than 5 minutes;

[0025] 4) After the water spraying is completed, check the joints on the indoor side of the water spraying area for leakage. If leakage exists, the location and characteristics of the leakage should be recorded. For areas suspected of leakage, the water spraying time can be extended.

[0026] In a preferred embodiment of the present invention, in step 3), the distance between the nozzle of the spraying device and the wall surface is 700±50 mm, and the nozzle sprays water on the selected joint along a direction perpendicular to the wall surface.

[0027] Due to the adoption of the above technical solution, the present invention adopts an on-site water spray test to inspect the waterproof performance of the joints, effectively controls the construction quality of the waterproof seal at the joints of the prefabricated wall panels, and meets the relevant standards such as the "Technical Code for Prefabricated Concrete Structures" (JGJ1-2014) and the "Technical Standard for Inspection of Prefabricated Residential Buildings" (JGJ / T485-2019). BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 The present invention is a schematic diagram of the components of an assembled wall panel joint waterproof detection device.

[0030] Figure 2 The present invention is a schematic structural diagram of the connection between a spray device and an attachment bracket of an assembled wall panel joint waterproof detection device.

[0031] Figure 3 It is an enlarged view of the local position where the spray device of the assembled wall panel joint waterproof detection equipment of the present invention is connected to the attachment bracket.

[0032] Figure 4 It is a partial enlarged view of a telescopic rod of an assembled wall panel joint waterproof detection device of the present invention.

[0033] Figure 5 It is a partial enlarged view of a clamping rod of an assembled wall panel joint waterproof detection device of the present invention.

[0034] Figure 6 It is an enlarged view of the local position of the connection between the telescopic rod and the clamping rod of the assembled wall panel joint waterproof detection equipment of the present invention.

[0035] Figure 7 The present invention is a schematic structural diagram of an assembled wall panel joint waterproof detection device when detecting horizontal joints.

[0036] Figure 8 The present invention is a schematic structural diagram of an assembled wall panel joint waterproof detection device when detecting vertical joints.

[0037] Fig. 9 The present invention is a schematic diagram of the connection between an attachment bracket of an assembled wall panel joint waterproof detection device and a wall between windows.

[0038] Fig.10The diagram is a length and height diagram of an attachment bracket of an assembled wall panel joint waterproof detection device of the present invention.

[0039] Fig.11 The present invention is a flowchart of the steps of a method for detecting waterproof joints of assembled wall panels.

[0040] Figure 1: An assembled wall panel joint waterproof detection device 1; window wall 10; joint 11; attachment bracket 100; spray connector 110; beam 111; position adjustment component 112; connector base 112a; fixture 112b; clamping assembly 120; telescopic rod 121; connecting keel 121a; pull rod 121b; clamping rod 122; clamping component 123; clamping support 123a; clamping screw 123b; pressure-bearing steel plate 124; angle bracket 130; spray device 200; nozzle 210; spray control device 300; hose 310; pressure transmitter 320; electromagnetic flowmeter 330; high-pressure ball valve switch 340; mobile control terminal 350; water source 400; portable water tank 410; submersible pump 420; height H; width B; beam length L1; telescopic rod length L2. DETAILED DESCRIPTION

[0041] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below.

[0042] See also Figures 1 to 10 The assembled wall panel joint waterproof detection device 1 shown includes an attachment bracket 100, a spray device 200, and a spray control device 300.

[0043] The attachment bracket 100 is used to be fixed on the adjacent window wall 10 . The spray device 200 is disposed on the attachment bracket 100 . The spray device 200 is connected to a water source 400 . The spray device 200 is also connected to a spray control device 300 .

[0044] In this embodiment, the attachment bracket 100 includes a spray connector 110 connected to the spray device 200 and a clamping assembly 120 connected to the spray connector 110. The clamping assembly 120 can be used to clamp and fix it on the adjacent window wall 10. The spray connector 110 serves as a fixed platform for the spray device 200. The spray device 200 uses a galvanized steel pipe. The spray pipe has two length specifications of 0.5m and 1.0m. The spray pipes are assembled and connected by threads. Spray pipes of different specifications can be assembled according to the length of the joint to be tested. The nominal diameter of the spray pipe is 20mm, the outlet diameter of the nozzle 210 is 6mm, the 1m spray pipe is equipped with two nozzles 210, and the 0.5m spray pipe is equipped with one nozzle 210. Preferably, the spray connector 110 includes a crossbeam 111, and the spray device 200 is assembled on the crossbeam 111 through a position adjustment component 112. The crossbeam 111 is made of an aluminum profile with a wall thickness of 1.8 mm. The aluminum profile has a slide groove structure, and a slider nut is arranged in the slide groove. It is light in weight and easy to install. The position adjustment component 112 includes a connector base 112a and a clamp 112b. The connector base 112a and the crossbeam 111 are tightened by a slider nut and a bolt. By adjusting the tightness of the nut, the connector base 112a can be arbitrarily translated along the length direction of the crossbeam 111 with the slider. The clamp 112b is arched, and the spray pipe is clamped between the connector base 112a and the clamp 112b. The connector base 112a and the clamp 112b are fixedly connected by bolts.

[0045] The clamping assembly 120 includes a pair of telescopic rods 121 respectively arranged at both ends of the crossbeam 111, and a clamping rod 122 is respectively arranged at both ends of each telescopic rod 121. The crossbeam 111 and the telescopic rod 121 are fixed by an angle bracket 130 to increase the structural stability. The telescopic rod 121 uses two connecting keels 121a to adjust the length. The connecting keel 121a is embedded in the slide groove of the pull rod 121b. The connecting keel 121a and the pull rod 121b are made of aluminum profiles and are locked with bolts.

[0046] In order to increase the versatility of the clamping rod 122 and improve the clamping effect, a clamping component 123 is provided at one end of the clamping rod 122 close to the window wall 10. Preferably, the clamping component 123 includes a clamping support 123a movably arranged on the clamping rod 122 and a clamping screw 123b arranged on the clamping support 123a. The clamping rod 122 is made of aluminum profile, and the aluminum profile has a slide groove structure. The clamping support 123a and the clamping rod 122 are connected by a slider nut and a bolt. The clamping screw 123b can be extended or retracted along the bolt hole of the clamping support 123a to adjust the clamping distance between a pair of clamping rods 122 on the same side. The adjustable stroke of the clamping screw 123b in this embodiment is 50mm. Of course, the adjustable stroke of the clamping screw 123b can also be set according to actual conditions. The clamping rod 122 is fixed to the connecting keel 121a by an angle bracket 130 to increase the structural stability. The clamping spacing of the clamping assembly 120 is adjustable, which can meet the attachment requirements of both horizontal joints and vertical joints for waterproof testing. Of course, the clamping component can also be a pressure-bearing steel plate 124. In this embodiment, a pair of clamping rods 122 are located on the same side, one end of which is provided with a clamping support 123a and a clamping screw 123b, and one end of the other clamping rod 122 is provided with a pressure-bearing steel plate 124, which is convenient for pre-clamping, and then the clamping screw 123b on one side can be used to adjust the clamping.

[0047] The water source 400 includes a portable water tank 410 for holding water, and a submersible pump 420 is arranged in the portable water tank 410. Preferably, the portable water tank 410 is made of a light and durable PVC material, has an air filling and discharging valve, is box-shaped after being inflated, and can be folded and stored after being deflated. The rated power supply of the submersible pump 420 is 220V, the power is 1100W, the maximum head is 50m, and the maximum flow rate is 5.5m 3 / h, a submersible pump 420 is placed in the portable water tank 410 to pump water from the portable water tank 410 to the spray pipe.

[0048] The spray control device 300 includes a hose 310 and a pressure transmitter 320, an electromagnetic flowmeter 330, and a high-pressure ball valve switch 340 arranged on the hose 310. The pressure transmitter 320, the electromagnetic flowmeter 330, and the high-pressure ball valve switch 340 are connected to a mobile control terminal 350. Preferably, the mobile control terminal 350 can be a mobile phone, and the range of the pressure transmitter 320 is 0 to 1.6Mpa. The pressure transmitter 320 establishes a Bluetooth connection with the mobile control terminal 350, and can adjust the pumping water pressure according to different rain conditions, and transmit the pressure data wirelessly in real time. The range of the electromagnetic flowmeter 330 is 0.56 to 5.6m 3 / h, the electromagnetic flowmeter 330 establishes a Bluetooth connection with the mobile control terminal 350, which can adjust the water flow of the sprinkler pipe according to different rain conditions, and wirelessly transmit water flow data in real time. The pressure range of the high-pressure ball valve switch 340 is 0-10Mpa. The high-pressure ball valve switch 340 establishes a Bluetooth connection with the mobile control terminal 350 to control the opening and closing of the water pipe according to the spray time requirements. The mobile control terminal 350 establishes a Bluetooth signal connection with the pressure transmitter 320, the electromagnetic flowmeter 330, and the high-pressure ball valve switch 340 to remotely adjust the spray water pressure, spray water flow and spray time, receive the water pressure data sent by the pressure gauge and the flow data sent by the flowmeter, and display the spray parameters in real time. The hose 310 uses a flexible PVC plastic tube, and polyester mesh is wrapped in the plastic interlayer to ensure the pressure resistance of the hose. The diameter of the hose is consistent with the spray pipe, and water is transported from the submersible pump to the spray pipe.

[0049] See also Figures 1 to 11 As shown, a method for detecting waterproof joints of assembled wall panels, using the above-mentioned device 1 for detecting waterproof joints of assembled wall panels, comprises the following steps:

[0050] 1) After the joint construction of the prefabricated wall panels is completed and the sealant is cured, select the joint to be tested on the outdoor side of the wall. The length of the joint covered by water should be no less than 1.5m;

[0051] 2) The attachment bracket 100 is fixed to the adjacent window wall 10, so that the spray device 200 is facing the joint 11 to be inspected, and the spray device 200 is connected to the water source 400;

[0052] 3) The spray control device 300 adjusts the appropriate water pressure and water flow, controls the spray device 200 to spray water on the selected joint, and the continuous spraying time is not less than 5 minutes; in this step, preferably, the distance between the nozzle 210 of the spray device 200 and the wall surface is 700±50mm, and the nozzle 210 sprays water on the selected joint in a direction perpendicular to the wall surface;

[0053] 4) After the water spraying is completed, check the joints on the indoor side of the water spraying area for leakage. If leakage exists, the location and characteristics of the leakage should be recorded. For areas suspected of leakage, the water spraying time can be extended.

[0054] Specifically, the above steps are described in detail. A method for detecting waterproof joints of assembled wall panels, using the above-mentioned device 1 for detecting waterproof joints of assembled wall panels, comprises the following steps:

[0055] 1) After the joint construction of the prefabricated wall panels is completed and the sealant is cured, select the joint to be tested on the outdoor side of the wall. The length of the joint covered by water should be no less than 1.5m;

[0056] 2) The attachment bracket 100 is fixed on the adjacent window wall 10 so that the spray device 200 is facing the joint 11 to be inspected, and the spray device 200 is connected to the water source 400; this step includes:

[0057] 2-1) Inflate the portable water tank 410 and place it on the floor. The portable water tank 410 is connected to the temporary water pipe in the floor. After three quarters of water is filled into the portable water tank 410, a submersible pump 420 is placed in it.

[0058] 2-2) Use a hose 310 to connect the submersible pump 420, the pressure transmitter 320, the electromagnetic flowmeter 330, and the high-pressure ball valve switch 340, and arrange the hose 310 on the floor near the joint of the wall panel to be tested;

[0059] 2-3) Determine the height H of the upper and lower window walls of the horizontal joint to be tested and the width B of the left and right window walls of the vertical joint from the exterior elevation drawing of the prefabricated wall panel. Determine the number of sprinkler pipes with specifications of 1m and 0.5m according to the length of the joint to be tested, and tighten the sprinkler pipes to assemble them into a whole;

[0060] 2-4) Use angle brackets 130 and bolts to connect the crossbeam 111 with the pull rod 121b, use angle brackets 130 and bolts to connect the clamping rod 122 with the connecting keel 121a, and use bolts and slider nuts to fix the clamping component 123 with the clamping rod 122; for the horizontal joints to be tested, determine the length L1 of the crossbeam according to the width B of the wall between the windows (L1>B), and determine the length L2 of the telescopic rod according to the height H of the wall between the windows (L2>H); for the vertical joints to be tested, determine the length L1 of the crossbeam according to the height H of the wall between the windows (L1>H), and determine the length L2 of the telescopic rod according to the height H of the wall between the windows (L2>B);

[0061] 2-5) According to the distance between the joint and the edge of the window wall, adjust the position of the crossbeam 111 in the length direction of the telescopic rod 121 to ensure that after the attachment bracket 100 is clamped and installed with the window wall 10, the sprinkler pipe is facing the joint 11 to be tested;

[0062] 2-6) The connector base 112a of the spray pipe is fixedly connected to the crossbeam 111 by bolts, and the spray pipe is fixedly connected to the connector base 112a by a clamp 112b, and finally the hose 310 is connected to the spray pipe;

[0063] 2-7) Extend the attachment bracket 100 out of the window, and clamp the attachment bracket 100 and the wall 10 between the windows. Adjust the elongation of the clamping screw 123b to clamp the clamping component 123 and the wall between the windows;

[0064] 3) The spray control device 300 adjusts the appropriate water pressure and water flow, controls the spray device 200 to spray water on the selected joint, and the continuous spraying time is not less than 5 minutes; in this step, preferably, the distance between the nozzle 210 of the spray device 200 and the wall surface is 700±50mm, and the nozzle 210 sprays water on the selected joint in a direction perpendicular to the wall surface; turn on the submersible pump 420 and the high-pressure ball valve switch 340, adjust the water pressure and water flow, and the water pressure value at the nozzle should be controlled between 200kPa and 235kPa;

[0065] 4) After the water spraying is completed, check the joints on the indoor side of the water spraying area for leakage. If leakage exists, the location and characteristics of the leakage should be recorded. For areas suspected of leakage, the water spraying time can be extended.

[0066] The present invention adopts an on-site water spray test to inspect the waterproof performance of the joints, effectively controls the construction quality of waterproof sealing at the joints of prefabricated wall panels, and meets relevant standards such as the "Technical Code for Prefabricated Concrete Structures" (JGJ1-2014) and the "Technical Standard for Testing of Prefabricated Residential Buildings" (JGJ / T 485-2019).

[0067] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An assembled wall panel joint waterproof detection device, characterized in that: include: An attachment bracket fixed to the wall between adjacent windows; A spray device disposed on the attachment bracket, the spray device being connected to a water source; A spray control device connected to the spray device.

2. The assembled wall panel joint waterproof detection device according to claim 1, characterized in that: The attachment bracket includes a spray connector connected to the spray device and a clamping assembly connected to the spray connector.

3. The assembled wall panel joint waterproof detection device according to claim 2, characterized in that: The spray connection piece comprises a crossbeam, and the spray device is assembled on the crossbeam through a position adjustment component.

4. The assembled wall panel joint waterproof detection device according to claim 3 is characterized in that: The clamping assembly comprises a pair of telescopic rods respectively arranged at two ends of the crossbeam, and a clamping rod is respectively arranged at two ends of each telescopic rod.

5. The assembled wall panel joint waterproof detection device according to claim 4, characterized in that: One end of the clamping rod close to the window wall is provided with a clamping component.

6. The assembled wall panel joint waterproof detection device according to claim 5, characterized in that: The clamping component comprises a clamping support movably arranged on the clamping rod and a clamping screw arranged on the clamping support.

7. The assembled wall panel joint waterproof detection device according to claim 1, characterized in that: The spray control device comprises: a hose connected between the spray device and a water source; A pressure transmitter disposed on the hose; An electromagnetic flowmeter disposed on the hose; A high-pressure ball valve switch provided on the hose; A mobile control terminal connected to the pressure transmitter, electromagnetic flowmeter, and high-pressure ball valve switch.

8. The assembled wall panel joint waterproof detection device according to claim 1, characterized in that: The water source comprises a portable water tank for containing water, and a submersible pump is arranged in the portable water tank.

9. A method for detecting waterproofness of assembled wall panel joints, characterized in that: The method of using the assembled wall panel joint waterproof detection device according to any one of claims 1 to 8 comprises the following steps: 1) After the joint construction of the prefabricated wall panels is completed and the sealant is cured, select the joint to be tested on the outdoor side of the wall. The length of the joint covered by water should be no less than 1.5m; 2) The attachment bracket is fixed on the wall between adjacent windows so that the spray device is facing the joint to be inspected and the spray device is connected to the water source; 3) The spray control device adjusts the appropriate water pressure and water flow, controls the spray device to spray water on the selected joints, and the continuous spraying time is not less than 5 minutes; 4) After the water spraying is completed, check the joints on the indoor side of the water spraying area for leakage. If leakage exists, the location and characteristics of the leakage should be recorded. For areas suspected of leakage, the water spraying time can be extended.

10. A method for detecting waterproof joints of assembled wall panels according to claim 9, characterized in that: In the step 3), the distance between the nozzle of the spraying device and the wall surface is 700±50 mm, and the nozzle sprays water on the selected joint along a direction perpendicular to the wall surface.

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