Fabricated building splicing seam waterproof performance on-site testing device

Abstract

The utility model relates to the technical field of assembly type buildings, and particularly discloses an assembly type building splicing seam waterproof performance on-site testing device, which comprises a supporting assembly, a connecting assembly, a connecting assembly, a connecting assembly, a connecting assembly, a connecting assembly and a testing assembly, wherein the supporting assembly comprises a supporting frame arranged on the surface of a prefabricated part of a to-be-detected splicing seam and a pressure cylinder buckled on the surface of the to-be-detected splicing seam; the support frame is provided with a counterweight member which enables the pressure cylinder to abut against the sealing strip in the splicing seam to be detected. The detection assembly comprises a water supply pipeline, an air leakage channel and a pressure measuring channel which are communicated with the side wall of the pressure cylinder, a pressure pump is arranged on the water supply pipeline, a first piston capable of blocking the air leakage channel is arranged in the air leakage channel, a second piston is connected in the pressure measuring channel in a sliding and sealing mode, and the pressure measuring channel is communicated with the pressure cylinder. The waterproof quality of the splicing seam can be reasonably and accurately evaluated, and the problems that in traditional waterproof detection of the splicing seam, field equipment is complex, data processing is difficult, and the detection process is tedious are solved.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated buildings, and specifically discloses a field test device for the waterproof performance of splicing joints of prefabricated buildings. Background Technique

[0002] Prefabricated buildings are based on the model of prefabricated production in component factories and on-site prefabricated installation, characterized by standardized design, factory production, assembled construction, integrated decoration and information management. They integrate various business fields from R & D design, production and manufacturing to on-site assembly, and realize the sustainable development of building products with energy conservation, environmental protection and maximized full-cycle value.

[0003] Splicing joints are the connection parts between precast components in prefabricated buildings. These joints need to be sealed with sealing strips made of specific materials to ensure the integrity and waterproof performance of the building, which is a key part to ensure the integrity and waterproof performance of the building. Scientific and reasonable evaluation of the waterproof quality of splicing joints is the premise for improving the waterproof performance of prefabricated buildings and plays an important role in promoting prefabricated buildings.

[0004] The waterproof detection of the splicing joints of prefabricated buildings is mainly carried out through on-site water spraying tests, and the methods of pressure testing and visual inspection are used to judge whether there is leakage. There are problems such as complicated on-site equipment, difficult data processing, and cumbersome detection processes. Therefore, in view of this, the inventor provides a field test device for the waterproof performance of splicing joints of prefabricated buildings to solve the above problems. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a field test device for the waterproof performance of splicing joints of prefabricated buildings that can reasonably and accurately evaluate the waterproof quality of splicing joints, so as to solve the problems of complicated on-site equipment, difficult data processing, and cumbersome detection processes in traditional waterproof detection of splicing joints.

[0006] To achieve the above purpose, the basic scheme of the present utility model provides a field test device for the waterproof performance of splicing joints of prefabricated buildings, including:

[0007] Support assembly: including a support frame provided on the surface of the precast component of the splicing joint to be detected and a pressure cylinder buckled on the surface of the splicing joint to be detected, and a counterweight is provided on the support frame to tightly press the pressure cylinder against the sealing strip in the splicing joint to be detected;

[0008] Detection assembly: including a water supply pipeline, a gas release passage and a pressure measurement passage respectively communicated with the side wall of the pressure cylinder. A pressure pump is provided on the water supply pipeline, a first piston that can block the gas release passage is provided in the gas release passage, a second piston is slidably and sealingly connected in the pressure measurement passage, and the first piston and the second piston move synchronously.

[0009] The principle and effect of this basic solution are as follows:

[0010] Compared with the prior art, by setting the first piston and the second piston that move synchronously, the present utility model can drive the second piston to move by using the water pressure in the pressure cylinder. That is, when the water level in the pressure cylinder rises, the water pressure pushes the second piston to move, thereby driving the first piston to move, so as to block the air release passage, achieving the effect of automatically controlling the on-off of the air release passage through the water level height in the air cylinder. At the same time, the water pressure in the pressure cylinder can be used to press the first piston tightly into the air release passage, avoiding the pressure relief situation during the detection of the pressure cylinder, making the waterproof detection process of the splicing joint of the prefabricated building more convenient and fast, and solving the problems of complex on-site equipment, difficult data processing, and cumbersome detection process in the traditional waterproof detection of the splicing joint.

[0011] Further, the first piston is connected with a first piston rod that is slidably and sealingly connected to the air release passage, the second piston is connected with a second piston rod that is slidably and sealingly connected to the pressure measuring passage, and the free ends of the first piston rod and the second piston rod respectively pass through the air release passage and the pressure measuring passage and are connected with a connecting rod. The connecting rod is used to connect the first piston rod and the second piston rod to achieve the purpose of synchronous movement of the first piston and the second piston, and the structure is more compact.

[0012] Further, an exhaust hole is provided on the side wall of the air release passage, and a sealing block capable of blocking the exhaust hole is provided on the side wall of the first piston rod. The setting of the sealing block can play a role in secondary sealing to avoid gas leakage during the pressurization process of the pressure cylinder.

[0013] Further, a protective box is provided on the outer side wall of the pressure cylinder, the connecting rod is slidably connected in the protective box, and a caliper slidably connected to the side wall of the protective box is provided on the connecting rod, and one end of the caliper extends out of the protective box. By setting the caliper and the protective box, it is convenient for the staff to directly observe the positions of the first piston and the second piston to reflect the magnitude of the pressure in the pressure cylinder.

[0014] Further, a plurality of guide rods slidably connected to the side wall of the protective box are also provided on the connecting rod, and a return spring is provided on at least one of the guide rods. The return spring plays a role in providing pressure balance for the guide rod.

[0015] Further, the return springs are symmetrically arranged along the midline of the first piston rod and the second piston rod. To maintain the stability of the forces on the first piston rod and the second piston rod.

[0016] Further, a sealing ring is provided at the bottom of the pressure cylinder and the diameter of the pressure cylinder is smaller than the length of the sealing strip. To avoid gaps between the pressure cylinder and the sealing strip.

[0017] Further, the support frame includes a number of anchor bars embedded inside the precast members to be inserted into the splicing joints to be detected and a cross beam fixedly installed through the anchor bars. A backing plate for carrying the counterweight is provided at the top of the pressure cylinder to maintain the stability of the pressure cylinder, so as to conduct an on-site test on the waterproof performance of the splicing joints of the prefabricated building. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 FIG. shows a schematic diagram of an on-site test device for the waterproof performance of the splicing joints of a prefabricated building proposed in an embodiment of the present application;

[0020] Figure 2 FIG. shows a partial top view of an on-site test device for the waterproof performance of the splicing joints of a prefabricated building proposed in an embodiment of the present application;

[0021] Figure 3 FIG. shows a schematic diagram of the interior of a protective box of an on-site test device for the waterproof performance of the splicing joints of a prefabricated building proposed in an embodiment of the present application;

[0022] Figure 4 FIG. shows a cross-sectional view of the air release passage of an on-site test device for the waterproof performance of the splicing joints of a prefabricated building proposed in an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the intended utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, will detail the specific implementation manners, structures, features, and effects according to the present invention.

[0024] The reference numerals in the drawings of the specification include: precast member 1, sealing strip 2, anchor bar 3, cross beam 4, counterweight 5, backing plate 6, pressure cylinder 7, sealing ring 8, water supply pipeline 9, pressure pump 10, air release hole 11, pressure measurement hole 12, protective box 13, air release passage 14, first piston rod 15, first piston 16, sealing block 17, pressure measurement passage 18, second piston rod 19, second piston 20, connecting rod 21, guide rod 22, return spring 23, locking tooth 24, exhaust hole 25.

[0025] An on-site test device for the waterproof performance of the splicing joints of a prefabricated building, as shown in the embodiments Figure 1 shown: includes a support assembly and a detection assembly, specifically as follows:

[0026] Support component: As shown in Figure 1 and Figure 2 shown, the support component includes a support frame disposed on the surface of the precast member 1 of the splicing joint to be detected and a pressure cylinder 7 buckled on the surface of the splicing joint to be detected. Among them, the support frame includes at least four anchoring steel bars 3 embedded into the interior of the precast member 1 of the splicing joint to be detected and a cross beam 4 fixedly installed through the anchoring steel bars 3. A counterweight member 5 for pressing the pressure cylinder 7 against the sealing strip 2 inside the splicing joint to be detected is provided on the cross beam 4. The counterweight member 5 is a jack installed on the cross beam 4, and the output end of the jack drives downward to press the pressure cylinder 7 tightly. A backing plate 6 for bearing the counterweight member 5 is provided at the top of the pressure cylinder 7. A sealing ring 8 is provided at the bottom of the pressure cylinder 7, and the diameter of the pressure cylinder 7 is smaller than the length of the sealing strip 2.

[0027] Detection component: The detection component includes a water supply pipeline 9, a gas release passage 14, and a pressure measurement passage 18 respectively communicating with the side wall of the pressure cylinder 7. An air release hole 11 and a pressure measurement hole 12 are respectively opened on the side surface of the pressure cylinder 7 to communicate with the gas release passage 14 and the pressure measurement passage 18. A pressure pump 10 is provided on the water supply pipeline 9 and is connected to a water tank. As shown in Figure 3 shown, a protective box 13 is provided on the side wall of the pressure cylinder 7. The gas release passage 14 and the pressure measurement passage 18 are both provided inside the protective box 13. A connecting rod 21 is provided inside the protective box 13. The end of the gas release passage 14 is slidably and sealingly connected to a first piston rod 15. The left end of the first piston rod 15 extends out of the gas release passage 14 and is connected to the connecting rod 21. The right end of the first piston rod 15 is located inside the gas release passage 14 and is connected to a first piston 16 that can block the gas release passage 14. The end of the pressure measurement passage 18 is slidably and sealingly connected to a second piston rod 19. The left end of the second piston rod 19 extends out of the pressure measurement passage 18 and is connected to the connecting rod 21. The right end of the second piston rod 19 is located inside the pressure measurement passage 18 and is connected to a second piston 20 that is slidably and sealingly connected to the inner wall of the pressure measurement passage 18. A caliper and a plurality of guide rods 22 that are slidably and sealingly connected to the protective box 13 are provided on the connecting rod 21. A return spring 23 is sleeved on the guide rod 22 located in the middle. As shown in Figure 3 and Figure 4 shown, an exhaust hole 25 is provided on the side wall of the gas release passage 14, and a sealing block 17 that can block the exhaust hole 25 is provided on the side wall of the first piston rod 15.

[0028] During the implementation of this embodiment, after grooving the precast member 1 with the splicing joint to be detected, first fix the bottom of the anchor reinforcement 3 inside the precast member 1 with the splicing joint to be detected, and then install the cross beam 4 and the backing plate 6 in sequence. Press the bottom of the pressure cylinder 7 against the surface of the sealing strip 2 through the jack. Then start the pressure pump 10. The pressure pump 10 supplies water into the pressure cylinder 7. The gas in the pressure cylinder 7 is discharged externally through the pressure relief passage and the exhaust hole 25. The water level in the pressure cylinder 7 gradually rises. When the water level exceeds the second piston 20, the water pressure exerts pressure on the side surface of the second piston 20, and this pressure increases as the water level rises. The second piston 20 moves leftward under the action of the water pressure, driving the first piston 16 to move leftward. When the water level height reaches the threshold value, the second piston 20 drives the first piston 16 to move so that the first piston 16 blocks the pressure relief passage, and at the same time the sealing block 17 blocks the exhaust hole 25. At this time, the inside of the pressure cylinder 7 is in a sealed state. The pressure pump 10 continues to supply water into the pressure cylinder 7, resulting in an increase in the pressure inside the pressure cylinder 7 to achieve the effect of pressurizing the splicing joint and the sealing strip 2 for testing. The magnitude of the pressure can be intuitively reflected by the moving distance of the caliper, and the leakage situation of the splicing joint is observed, thereby completing the detection of the waterproof performance of the splicing joint.

[0029] Compared with the prior art, by setting the first piston 16 and the second piston 20 that move synchronously, the present utility model can utilize the water pressure in the pressure cylinder 7 to drive the second piston 20 to move. That is, when the water level in the pressure cylinder 7 rises, the water pressure pushes the second piston 20 to move, thereby driving the first piston 16 to move, so as to block the air release passage 14, achieving the effect of automatically controlling the on-off of the air release passage 14 through the water level height in the air cylinder. At the same time, the water pressure in the pressure cylinder 7 can also be used to press the first piston 16 tightly into the air release passage 14 to avoid pressure relief in the pressure cylinder 7 during the detection process, making the waterproof detection process of the splicing joint of the prefabricated building more convenient and fast, and solving the problems of complicated on-site equipment, difficult data processing, and cumbersome detection process in the traditional waterproof detection of the splicing joint.

[0030] The above is only a preferred embodiment of the present utility model and does not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to make equivalent embodiments with equivalent changes without departing from the technical solution scope of the present utility model. However, any brief modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. An on-site test device for the waterproof performance of splicing joints of prefabricated buildings, characterized in that, Comprising: Support component: including a support frame provided on the surface of the precast member at the splicing joint to be detected and a pressure cylinder buckled on the surface of the splicing joint to be detected, and a counterweight is provided on the support frame to tightly press the pressure cylinder against the sealing strip in the splicing joint to be detected; Detection component: including a water supply pipeline, an air release passage and a pressure measurement passage respectively communicated with the side wall of the pressure cylinder, a pressure pump is provided on the water supply pipeline, a first piston capable of blocking the air release passage is provided in the air release passage, a second piston is slidably and sealingly connected in the pressure measurement passage, and the first piston and the second piston move synchronously.

2. The on-site test device for the waterproof performance of the splicing joint of a prefabricated building according to claim 1, wherein, The first piston is connected with a first piston rod slidably and sealingly connected to the air release passage, the second piston is connected with a second piston rod slidably and sealingly connected to the pressure measurement passage, and the free ends of the first piston rod and the second piston rod respectively pass through the air release passage and the pressure measurement passage and are connected with a connecting rod.

3. The on-site testing device for the waterproof performance of the splicing joints of a prefabricated building according to claim 2, characterized in that, An exhaust hole is provided on the side wall of the air release passage, and a sealing block capable of blocking the exhaust hole is provided on the side wall of the first piston rod.

4. The on-site test device for the waterproof performance of the splicing joints of a prefabricated building according to claim 2 or 3, characterized in that, A protective box is provided on the outer side wall of the pressure cylinder, the connecting rod is slidably connected in the protective box, and a caliper slidably connected to the side wall of the protective box is provided on the connecting rod, and one end of the caliper extends out of the protective box.

5. The on-site testing device for the waterproof performance of the splicing joints of prefabricated buildings according to claim 4, characterized in that, A plurality of guide rods slidably connected to the side wall of the protective box are further provided on the connecting rod, and a return spring is provided on at least one of the guide rods.

6. The on-site testing device for the waterproof performance of the splicing joints of a prefabricated building according to claim 5, wherein, The return spring is symmetrically arranged along the midline of the first piston rod and the second piston rod.

7. The on-site test device for the waterproof performance of the splicing joint of a prefabricated building according to claim 1, wherein, A sealing ring is provided at the bottom of the pressure cylinder and the diameter of the pressure cylinder is smaller than the length of the sealing strip.

8. The on-site testing device for the waterproof performance of the splicing joints of a prefabricated building according to claim 1, characterized in that, The support frame includes a plurality of anchor bars embedded into the interior of the precast member at the splicing joint to be detected and a cross beam fixedly installed through the anchor bars, and a backing plate for carrying the counterweight is provided at the top of the pressure cylinder.

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