Air tightness detection device for fireproof plugging material test piece

Abstract

An air tightness detection device for a fireproof plugging material test piece relates to the technical field of air tightness detection, and comprises a support table and a sealing box which are in sliding fit and can slide along the length direction of the support table; a sealing cavity is formed in the sealing box, one end, in the length direction of the supporting table, of the sealing box is provided with a first abutting face used for abutting against a fireproof plugging material test piece, a first opening is formed in the first abutting face, and the first opening penetrates through the first abutting face to be communicated with the sealing cavity; a sound wave emitter is arranged in the sealing cavity, and a sound imager is arranged on the side, away from the sealing box, of the fireproof plugging material test piece. According to the device, the fireproof plugging material test piece can be quickly disassembled and assembled, so that the detection of the airtightness of the fireproof plugging material test piece can be better completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtightness detection technical field, specifically, relate to a kind of airtightness detection device for fireproof plugging material test piece. BACKGROUND

[0002] Building plugging material plays a vital role in the construction industry, and they are widely used in various occasions that need to be plugged, sealed or waterproofed. For plugging materials, the airtightness of the material is one of the most important indicators. In the prior art, fixed-size fireproof plugging material test pieces, such as 1200*1000*20, 800*600*20, etc. are usually used. The middle of the fireproof plugging material test piece has a through hole. Various pipes simulating actual use scenarios are passed through the through hole. Then the through hole is sealed with plugging material. The airtightness of the plugging material can be detected by airtightness detection, acoustic detection and other methods. The equipment used for airtightness detection in the existing equipment is usually complex, not only high in cost, but also complex in operation, which is not conducive to popularization. SUMMARY

[0003] The utility model aims at providing a kind of airtightness detection device for fireproof plugging material test piece, its structure is simple, easy to operate, can quickly and accurately detect the airtightness of fireproof plugging material test piece, with better application value.

[0004] The embodiment of the utility model is realized as follows:

[0005] An airtightness detection device for fireproof plugging material test piece includes a support table and a sealing box. The sealing box and the support table are slidingly connected and can slide along the length direction of the support table. The sealing box has a sealing cavity formed inside. One end of the sealing box along the length direction of the support table has a first abutting surface for abutting with the fireproof plugging material test piece. The first abutting surface is provided with a first opening. The first opening penetrates the first abutting surface and communicates with the sealing cavity. The sealing cavity is provided with a sound wave emitter. A sound imaging instrument is arranged on the side of the fireproof plugging material test piece away from the sealing box.

[0006] Further, in other preferred embodiments of the utility model, the top of the support table is provided with a pair of parallel sliding rails. The two sides of the sealing box in the length direction are respectively provided with sliding members for cooperating with the pair of sliding rails.

[0007] Further, in other preferred embodiments of the utility model, the first abutting surface is provided with a sealing rubber strip. The sealing rubber strip is arranged along the edge of the first opening.

[0008] Further, in other preferable embodiments of the utility model, the side wall of the sealing box is provided with a locking piece for locking the fireproof blocking material test piece on both sides in the length direction; the locking piece comprises a sliding seat and a sliding rod, the sliding seat is arranged on the side wall of the sealing box, the sliding seat has a through hole penetrating in the length direction of the sealing box, and the sliding rod is slidingly embedded in the through hole; one end of the sliding rod close to the fireproof blocking material test piece is provided with a pressing block, and the pressing block is arranged along the radial direction of the sliding rod; the other end of the sliding rod is provided with an external thread, and the external thread is in threaded cooperation with a locking nut.

[0009] Further, in other preferable embodiments of the utility model, the top of the supporting table is provided with a lifting mechanism for adjusting the height of the fireproof blocking material test piece, and the lifting mechanism is located at one end in the length direction of the sliding rail.

[0010] Further, in other preferable embodiments of the utility model, the number of the lifting mechanisms is multiple, and the lifting mechanism comprises a base and a telescopic rod, the base is arranged on the top of the supporting table, and the telescopic rod is supported at the bottom of the fireproof blocking material test piece.

[0011] Further, in other preferable embodiments of the utility model, the air tightness detection device further comprises a sealing transition plate for covering the first opening, the sealing transition plate comprises a second abutting surface for abutting against the fireproof blocking material test piece, the second abutting surface is provided with a second opening, and the second opening penetrates through the sealing transition plate and communicates with the sealing cavity.

[0012] Further, in other preferable embodiments of the utility model, the sealing box is provided with an air inlet, the air inlet penetrates through the wall of the sealing box and communicates with the sealing cavity; and a valve for controlling the opening and closing of the air inlet is arranged at the air inlet.

[0013] Further, in other preferable embodiments of the utility model, the inner wall of the sealing box is provided with a sound insulation sealing layer made of foaming material.

[0014] The utility model discloses a beneficial effect of an embodiment is:

[0015] The utility model provides a kind of air tightness detection device for fireproof blocking material test piece, it includes supporting table and sealing box, sealing box and supporting table sliding cooperation, and can along the length direction of supporting table sliding;Sealing cavity is formed in the inside of sealing box, and the first abutting surface for abutting against the fireproof blocking material test piece is had in one end in the length direction of supporting table, first abutting surface is provided with first opening, and first opening penetrates through first abutting surface and communicates with sealing cavity;Sound wave emitter is arranged in sealing cavity, and acoustic imager is arranged on the side of fireproof blocking material test piece away from sealing box.The device can realize the quick disassembly of fireproof blocking material test piece, to better complete the detection of the air tightness of fireproof blocking material test piece. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the premise of the drawings.

[0017] Figure 1 The schematic view of the air tightness detection device for fire blocking material test piece provided by the embodiments of the present application when adapting to large-size fire blocking material test piece is shown in the figure.

[0018] Figure 2 The enlarged schematic view of the air tightness detection device for fire blocking material test piece provided by the embodiments of the present application at III.

[0019] Figure 3 The schematic view of the air tightness detection device for fire blocking material test piece provided by the embodiments of the present application when adapting to small-size fire blocking material test piece is shown in the figure.

[0020] Icon: 100-air tightness detection device; 110-supporting table; 111-slideway; 112-lifting device; 120-sealing box; 121-sealing cavity; 122-first opening; 123-sliding piece; 124-sealing rubber strip; 125-locking piece; 1251-sliding seat; 1252-sliding rod; 1253-pressing block; 1254-locking nut; 130-sealing transition plate; 131-second abutting surface; 132-second opening; 200-fire blocking material test piece. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0024] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, or the communication or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature. Embodiment

[0026] The embodiment provides airtightness detection device 100 for fireproof plugging material test piece 200, referring to Figure 1 As shown in the figure, it comprises support table 110 and sealing box 120.

[0027] The sealing box 120 and the support table 110 are in sliding fit and can slide along the length direction of the support table 110. The sealing box 120 is internally formed with a sealing cavity 121. One end of the sealing box 120 along the length direction of the support table 110 is provided with a first abutting surface (not shown) for abutting against the fire-stopping material test piece 200. The first abutting surface is provided with a first opening 122 which penetrates the first abutting surface and communicates with the sealing cavity 121. The size of the first opening 122 is slightly smaller than the fire-stopping material test piece 200. In use, the fire-stopping material test piece 200 is first placed in a proper position, and then the sealing cavity 121 is slid so that the fire-stopping material test piece 200 covers the first opening 122, and the detection can be started.

[0028] The sealing cavity 121 is provided with a sound wave emitter (not shown in the figure). The side of the fire-stopping material test piece 200 away from the sealing box 120 is provided with a sound imaging instrument (not shown in the figure). In detection, the sound wave emitter emits sound waves, and the sound imaging instrument collects the required sound wave signals and crack evolution images, and finally locks the cracks and gaps that cannot be identified by artificial means. The sound wave emitter and the sound imaging instrument are both mature products and can be selected according to actual use requirements, and will not be described here.

[0029] Further, the top of the support table 110 is provided with a pair of parallel sliding rails 111, and the two sides of the sealing box 120 along the length direction are respectively provided with sliding members 123 for cooperating with the pair of sliding rails 111. The sliding members 123 can be selected as conventional grooved pulleys, and the sliding rails 111 are embedded into the grooves of the grooved pulleys, so that the sliding can be realized. Alternatively, the number of the grooved pulleys is four, and two by two are arranged on the two sides of the sealing box 120, so as to provide stable support for the sealing box 120.

[0030] Preferably, the first abutting surface is provided with a sealing rubber strip 124 which is arranged along the edge of the first opening 122. The sealing rubber strip 124 can increase the air tightness between the fire-stopping material test piece 200 and the first abutting surface, so as to improve the accuracy of detection.

[0031] Further, as shown in FIG. 4, the sealing box 120 is provided with a plurality of sealing rubber strips 124 which are arranged along the edge of the first opening 122. Figure 1 and Figure 2As shown, the side walls on both sides of the length direction of the sealing box 120 are provided with locking members 125 for locking the fireproof blocking material test piece 200; the locking member 125 comprises a sliding seat 1251 and a sliding rod 1252, the sliding seat 1251 is arranged on the side wall of the sealing box 120, the sliding seat 1251 has a through hole penetrating along the length direction of the sealing box 120, and the sliding rod 1252 is slidingly embedded in the through hole; one end of the sliding rod 1252 close to the fireproof blocking material test piece 200 is provided with a pressing block 1253, the pressing block 1253 is arranged along the radial direction of the sliding rod 1252; the other end of the sliding rod 1252 is provided with an external thread, which is in threaded cooperation with a locking nut 1254. When installing the fireproof blocking material test piece 200, first turn the pressing block 1253 to the vertical direction, slide the sealing box 120 to make it fit the fireproof blocking material test piece 200, then turn the pressing block 1253 to the horizontal direction, press the pressing block 1253 on the side of the fireproof blocking material test piece 200 away from the sealing box 120, and complete the preliminary fixation. Then, by rotating the locking nut 1254, the pressure applied by the pressing block 1253 is further increased to meet the required air tightness requirement.

[0032] Optionally, as shown in the figure, Figure 1 The top of the support table 110 is provided with a lifting mechanism for adjusting the height of the fireproof blocking material test piece 200, and the lifting mechanism is located at one end of the length direction of the sliding rail 111. The number of the lifting mechanism is multiple, and the lifting mechanism comprises a base and a telescopic rod, the base is arranged on the top of the support table 110, and the telescopic rod is supported on the bottom of the fireproof blocking material test piece 200. In this embodiment, four lifting mechanisms are arranged in cooperation with the square structure of the bottom surface of the fireproof blocking material test piece 200, and the four lifting mechanisms are respectively located at the four corners of the bottom surface of the fireproof blocking material test piece 200. The four lifting mechanisms can be independently adjusted, and the height of the fireproof blocking material test piece 200 can be finely adjusted by the height adjustment of the four lifting mechanisms, so that the fireproof blocking material test piece 200 is better fit with the sealing box 120. The lifting mechanism itself is prior art, and a conventional hand-operated lifting device 112 or a hydraulic lifting device 112 can be used, which will not be described here.

[0033] In addition, as shown in the figure, Figure 3As shown, the air tightness detection device 100 further comprises a sealing transition plate 130 used to cover the first opening 122, the sealing transition plate 130 comprises a second abutting surface 131 used to abut against the fire-stopping material test piece 200, the second abutting surface 131 is provided with a second opening 132, the second opening 132 is in communication with the sealing cavity 121 through the sealing transition plate 130. In the prior art, the fire-stopping material test piece 200 has two specifications, in order to achieve versatility, the size of the first opening 122 is usually set to match the large specification fire-stopping material test piece 200, and the small specification fire-stopping material test piece 200 is adapted by the sealing transition plate 130. When installing, the sealing transition plate 130 is placed between the fire-stopping material test piece 200 and the sealing box 120, the first opening 122 is covered by the sealing transition plate 130, and then the small specification fire-stopping material test piece 200 is covered on the second opening 132, so that the installation is completed.

[0034] Similarly, the second abutting surface 131 is provided with a sealing rubber strip 124, and the sealing rubber strip 124 is arranged along the edge of the second opening 132. The sealing rubber strip 124 can increase the air tightness between the fire-stopping material test piece 200 and the second abutting surface 131.

[0035] The inner wall of the sealing box 120 is provided with a sound insulation sealing layer made of foaming material (not shown in the figure). The air tightness is increased, and the inner wall of the sealing box 120 avoids absorbing sound waves, thereby improving the accuracy of detection.

[0036] Further, the sealing box 120 is provided with an air inlet (not shown in the figure), the air inlet is in communication with the sealing cavity 121 through the wall of the sealing box 120; and the air inlet is provided with a valve used to control the opening and closing of the air inlet. After the air inlet is added, the air tightness detection device 100 can also perform air tightness detection in addition to sound wave detection. During detection, air is introduced into the sealing cavity 121 through the air inlet, and the sealing condition is analyzed by measuring the pressure difference between the inside and outside of the sealing box 120.

[0037] In summary, the utility model provides a kind of air-tightness detection device 100 for fireproof plugging material test piece 200, it includes support platform 110 and sealed box 120, sealed box 120 and support platform 110 sliding fit, and can along the length direction of support platform 110 sliding;Sealed cavity 121 is formed in the inside of sealed box 120, and the one end of sealed box 120 along the length direction of support platform 110 has to with fireproof plugging material test piece 200 abutment first abutment surface, first abutment surface is provided with first opening 122, and first opening 122 is communicated with sealed cavity 121 through first abutment surface;Sound wave transmitter is provided in sealed cavity 121, and sound imaging instrument is provided on the side of fireproof plugging material test piece 200 away from sealed box 120.The device can realize the quick disassembly of fireproof plugging material test piece 200, to better complete the air-tightness detection of fireproof plugging material test piece 200.

[0038] The above only is the preferred embodiment of the utility model, and does not limit the utility model, for the person skilled in the art, the utility model can have various changes and changes.For any modification, equivalent replacement, improvement etc.in the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. An apparatus for detecting air tightness of a test piece of fire stopping material, characterized by, The support table and the sealing box are slidingly matched and can slide along the length direction of the support table; the inside of the sealing box is formed with a sealing cavity; the sealing box is provided with a first abutting surface at one end in the length direction of the support table to abut against the fire-stopping material sample; the first abutting surface is provided with a first opening which communicates with the sealing cavity through the first abutting surface; the sealing cavity is provided with a sound wave emitter; and a sound imaging instrument is arranged on the side of the fire-stopping material sample away from the sealing box.

2. The air tightness testing apparatus of claim 1, wherein, The top of the support table is provided with a pair of parallel sliding rails, and the two sides in the length direction of the sealing box are respectively provided with sliding members for matching with the pair of sliding rails.

3. The air tightness testing apparatus of claim 2, wherein, The first abutting surface is provided with a sealing rubber strip arranged along the edge of the first opening.

4. The air tightness testing apparatus of claim 3, wherein, The side walls on the two sides in the length direction of the sealing box are both provided with locking members for locking the fire-stopping material sample; the locking member comprises a sliding seat and a sliding rod; the sliding seat is arranged on the side wall of the sealing box and is provided with a through hole penetrating in the length direction of the sealing box; the sliding rod is slidingly embedded in the through hole; one end of the sliding rod close to the fire-stopping material sample is provided with a pressing block arranged in the radial direction of the sliding rod; the other end of the sliding rod is provided with an external thread which is threadedly matched with a locking nut.

5. The air tightness testing apparatus of claim 4, wherein, The top of the support table is provided with a lifting mechanism for adjusting the height of the fire-stopping material sample, and the lifting mechanism is located at one end in the length direction of the sliding rail.

6. The air tightness testing apparatus of claim 5, wherein, The number of the lifting mechanisms is plural, and each lifting mechanism comprises a base and a telescopic rod; the base is arranged on the top of the support table; and the telescopic rod is supported on the bottom of the fire-stopping material sample.

7. The air tightness testing apparatus of claim 6, wherein, The air tightness detection device further comprises a sealing transition plate for covering the first opening; the sealing transition plate comprises a second abutting surface for abutting against the fire-stopping material sample; the second abutting surface is provided with a second opening which communicates with the sealing cavity through the sealing transition plate.

8. The air tightness testing apparatus of claim 7, wherein, The sealing box is provided with an air inlet which communicates with the sealing cavity through the wall of the sealing box; and the air inlet is provided with a valve for controlling the opening and closing of the air inlet.

9. The air tightness testing apparatus of claim 8, wherein, The inner wall of the sealing box is provided with a sound insulation sealing layer made of foaming material. The top of the support table is provided with a pair of parallel sliding rails, and the two sides in the length direction of the sealing box are respectively provided with sliding members for matching with the pair of sliding rails. The first abutting surface is provided with a sealing rubber strip arranged along the edge of the first opening. The side walls on the two sides in the length direction of the sealing box are both provided with locking members for locking the fire-stopping material sample; the locking member comprises a sliding seat and a sliding rod; the sliding seat is arranged on the side wall of the sealing box and is provided with a through hole penetrating in the length direction of the sealing box; the sliding rod is slidingly embedded in the through hole; one end of the sliding rod close to the fire-stopping material sample is provided with a pressing block arranged in the radial direction of the sliding rod; the other end of the sliding rod is provided with an external thread which is threadedly matched with a locking nut. The top of the support table is provided with a lifting mechanism for adjusting the height of the fire-stopping material sample, and the lifting mechanism is located at one end in the length direction of the sliding rail. The number of the lifting mechanisms is plural, and each lifting mechanism comprises a base and a telescopic rod; the base is arranged on the top of the support table; and the telescopic rod is supported on the bottom of the fire-stopping material sample. The air tightness detection device further comprises a sealing transition plate for covering the first opening; the sealing transition plate comprises a second abutting surface for abutting against the fire-stopping material sample; the second abutting surface is provided with a second opening which communicates with the sealing cavity through the sealing transition plate. The sealing box is provided with an air inlet which communicates with the sealing cavity through the wall of the sealing box; and the air inlet is provided with a valve for controlling the opening and closing of the air inlet. The inner wall of the sealing box is provided with a sound insulation sealing layer made of foaming material.

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