Auxiliary device for testing water absorption rate of thermal insulation material

Abstract

The utility model discloses a thermal insulation material water absorption testing auxiliary device which comprises a testing base, a fixing support and a limiting rod, the fixing support is arranged above the testing base, the limiting rod capable of vertically moving is arranged on the fixing support, a locking structure used for locking is arranged at the tail end of the limiting rod, a balancing weight is arranged on the locking structure, and the testing base is arranged on the testing base. A through hole is formed in the center of the balancing weight, and the locking structure penetrates through the balancing weight through the through hole to be connected with the limiting rod. By means of the arrangement, the weight of the whole device is increased, it is guaranteed that the test piece can be fully soaked all the time in the detection process, and the accuracy and reliability of water absorption testing of the test piece on the device are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building material detection technical field especially, it relates to the auxiliary device of thermal insulation material water absorption rate test. BACKGROUND

[0002] In the field of construction and engineering, the water absorption rate of thermal insulation material is a crucial performance indicator. The water absorption rate directly affects its thermal insulation performance and durability. For example, according to the national standard GB / T 25975-2018 "Rock wool products for external thermal insulation of building exterior walls", the upper limit of the water absorption rate of rock wool board should not exceed 5%, and some high-standard rock wool boards require the water absorption rate to be not more than 2%. This also means that the lower the water absorption rate of the rock wool board, the better its thermal insulation effect, and it is not easy to cause the thermal insulation performance to decrease due to water intrusion. Of course, in addition to rock wool products, building thermal insulation materials also include rigid foam plastic, XPS thermal insulation extruded sheet, etc., and the determination of the water absorption rate of such materials is also important.

[0003] In the full immersion test of the water absorption rate of thermal insulation material, it is usually required to test for 24 hours under normal temperature conditions to ensure the accuracy of the data. This process requires the thermal insulation material to be completely immersed in water, and the thermal insulation material has the characteristic of light weight, so it will float after being immersed in water due to the action of buoyancy. At this time, the detection personnel need to increase the weight to ensure that it is completely immersed in water.

[0004] The existing patent (publication number CN206618617U) discloses a support for sample immersion test, which aims to fix the light sample in water for immersion to realize the determination of water absorption rate. The support is composed of a metal base plate, a connecting guide rod, a pressure plate with a "cross" structure and a handle. In use, the thermal insulation material sample is placed on the stage of the metal base plate, and is fixed by adjusting the pressure plate, and then the entire support and the sample are immersed in water to prevent the sample from floating. However, in actual application, it is found that due to the light weight characteristic of the thermal insulation material itself, when different specifications (especially the size of the sample to be tested is large) of thermal insulation material samples are placed in the immersion barrel, the buoyancy of the thermal insulation material is different, and the weight of the metal base plate of the support is fixed and cannot be adjusted. The difference in buoyancy between the thermal insulation material and the metal base plate easily leads to insufficient stability of the device placed underwater, and the thermal insulation material sample cannot always be completely immersed in water, which greatly affects the accuracy of the test results. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a thermal insulation material water absorption rate test auxiliary device to solve the problem that the weight of the detection device is insufficient, the thermal insulation material sample cannot always be completely immersed in water, and the full immersion of the test piece is affected, thereby affecting the accuracy of the water absorption rate test.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: the auxiliary device for testing water absorption rate of thermal insulation material, including test base, fixed support, limit rod, the fixed support is arranged above test base, is provided with the limit rod that can vertically move on the fixed support, the end of limit rod is provided with locking structure for locking, locking structure is provided with counterweight on, the centre of counterweight has through -hole, locking structure passes through counterweight and is connected with limit rod through through -hole.

[0007] The scheme is realized as follows: when the water absorption rate is tested, the test piece is placed on the test base, the limit rod can limit the movement of the test piece, the locking structure can lock the limit rod to fix the position of the limit rod, the tester moves the limit rod on the fixed support to the appropriate position to ensure that the limit rod can fix the test piece after being locked, and the locking structure passes through the counterweight and locks the limit rod.

[0008] Through the cooperation of the limit rod and the locking structure, the movement of the test piece is effectively limited, so that the test piece can remain stable even if the water body fluctuates due to the difference in buoyancy and the like during the test, and the test piece will not deviate from the originally set position due to water flow impact. Meanwhile, the locking structure can also fix the counterweight, which solves the problem of sliding caused by the difference in underwater buoyancy, water flow impact or vibration and the like, and meets the accuracy and reliability of the water absorption rate test of the test piece on the device.

[0009] Preferably, the end surfaces of the counterweight in contact with the locking structure and the limit rod are adhesively fixed with anti-skid pads. Before the counterweight is arranged, it is found that during long-term use, the locking structure needs to be screwed and abutted against the fixed support to play a stable fixing role, and when the test sample is placed and unloaded, the locking structure needs to be frequently tightened or loosened, at which time the sliding cylinder at the end of the locking structure and the limit rod is in rigid contact, and after long-term use, the problem of loosening caused by galling may occur, which increases the counterweight, and the anti-skid pads are arranged on the end surfaces of the counterweight in contact with the locking structure and the limit rod, at which time the counterweight also plays the role of a gasket, on the one hand, the contact sections on both sides of the counterweight are in flexible contact, which can reduce the loosening problem caused by the difference in buoyancy, vibration and other external forces, and on the other hand, the anti-skid pads can reduce the galling and wear caused by long-term rigid stress between metal parts, which can significantly enhance the functional stability of the locking structure and prolong the service life of the device.

[0010] Preferably, the counterweight is a short thick cylinder, and the through hole of the counterweight is a U-shaped hole. The short thick cylinder design makes the center of gravity more concentrated, reduces the swing in water, and improves the stability of the whole device. The U-shaped hole facilitates quick installation and disassembly of the counterweight, and the locking structure does not need to be removed every time.

[0011] Preferably, the locking structure is an elastic screw. The elastic screw design can provide sufficient friction or clamping force to ensure that the limiting rod is stably clamped between the locking structure and the limiting rod after being tightened, preventing any sliding or loosening. At the same time, this design allows the inspector to easily adjust the position of the limiting rod by simply rotating, and quickly fix the limiting rod by tightening the screw, achieving the simplicity and speed of operation without relying on complex tools or tedious steps.

[0012] Preferably, the center of the limiting rod is provided with an auxiliary limiting rod, and the end of the auxiliary limiting rod is bent downward. The auxiliary limiting rod can provide an additional limiting function based on the limiting rod, ensuring that the position of the test piece in water is more stable, and preventing the test piece from deviating due to the external force acting on the limiting rod alone.

[0013] Preferably, the top of the fixed support is a triangular convex structure. The triangular convex structure can provide a stable hanging point, so that the whole device can be conveniently hung on the wall or other support when not in use, saving space and keeping the working area clean. At the same time, it can also be used as a handle, making it more convenient for the inspector to move the device, especially in a laboratory environment where frequent movement is the norm. This design can reduce the burden on the operator.

[0014] Preferably, the test base is provided with a plurality of holes. The holes allow water to flow freely, ensuring that the bottom of the test piece is in full contact with the water during testing. They also ensure that the accumulated water on the base can be quickly drained after testing, avoiding stagnation and facilitating the next step of testing. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of an embodiment of the thermal insulation material water absorption rate test auxiliary device of the utility model;

[0016] Figure 2 is a front view of the counterweight in the embodiment of the thermal insulation material water absorption rate test auxiliary device of the utility model.

[0017] Figure 3 is a side view of the counterweight in the embodiment of the thermal insulation material water absorption rate test auxiliary device of the utility model. DETAILED DESCRIPTION

[0018] The utility model will be further explained in detail below in combination with the drawings and specific embodiments:

[0019] The reference signs in the drawings of the specification include: test base 1, fixed support 2, limiting rod 3, sliding cylinder 3-1, counterweight 4, locking structure 5, auxiliary limiting rod 6, outer convex structure 7, hole 8, anti-skid pad 9.

[0020] As shown in Figure 1 , Figure 2 , Figure 3 The water absorption rate test auxiliary device for thermal insulation materials includes test base 1, fixed support 2, limiting rod 3, and two counterweights 4. The test base 1 can be directly placed on the ground or in a test barrel, and the overall device will not collapse. The fixed support 2 is arranged above the test base 1, and the limiting rod 3 movably arranged on the fixed support 2. The locking structure 5 passes through the counterweight 4 and is tightly fixed on the limiting rod 3, which ensures that the counterweight meets the requirements. At the same time, the locking structure can also fix the counterweight, ensuring that the counterweight 4 will not displace or fall off during the test due to water fluctuation or external vibration. This fundamentally solves the problem that the buoyancy difference between the thermal insulation material and the detection device easily leads to insufficient stability of the device placed underwater, and the thermal insulation material sample cannot always remain completely immersed in water, thereby ensuring sufficient immersion of the test piece and improving the accuracy and reliability of the water absorption rate test.

[0021] An anti-skid pad 9 is arranged on the end surface of the counterweight 4 in contact with the locking structure 5 and the limiting rod 3. The anti-skid pad 9 is 5mm high, and the counterweight 4 and the limiting rod 3 are tightened by the locking structure 5. Before the counterweight 4 is arranged, during long-term use, the locking structure 5 needs to be tightened and abut against the fixed support 2 to play a stable fixing role. When placing and removing the test sample, the locking structure 5 needs to be frequently tightened or loosened. At this time, the locking structure 5 and the sliding cylinder 3-1 at the end of the limiting rod 3 are in rigid contact, and after long-term use, the problem of loosening caused by galling may occur, which increases the counterweight 4. After the counterweight 4 is arranged, the anti-skid pad 9 is arranged on the end surface of the counterweight 4 in contact with the locking structure 5 and the limiting rod 3. At this time, the counterweight 4 also plays the role of a gasket. On the one hand, the contact sections on both sides of the counterweight 4 are in flexible contact, which can reduce the loosening problem caused by buoyancy difference, vibration and other external forces. On the other hand, the anti-skid pad 9 can reduce the galling and wear caused by long-term rigid stress between metal parts, which can significantly enhance the functional stability of the locking structure 5 and prolong the service life of the device.

[0022] The counterweight 4 is a short and thick cylinder, and the through hole of the counterweight 4 is a U-shaped hole. The design of the counterweight 4 makes the center of gravity more concentrated, reduces the swing in water, and improves the stability of the overall device. When in use, as long as the gap between the locking structure 5 and the limiting rod 3 is greater than the counterweight, the counterweight can be put in. It is not necessary to remove the locking structure every time, which facilitates the quick installation and removal of the counterweight.

[0023] The locking structure 5 adopts a loose and tight screw design, which can provide sufficient friction or clamping force. After the limiting rod 3 is tightened, the counterweight 4 can be stably clamped between the locking structure and the limiting rod to prevent any sliding or loosening. At the same time, this design allows the inspector to easily adjust the position of the limiting rod 3 by simply rotating, and quickly fix the limiting rod 3 by tightening the screw, achieving the simplicity and speed of operation without relying on complex tools or cumbersome steps.

[0024] The limiting rod 3 is vertically provided with an auxiliary limiting rod 6 in the center, and the end of the auxiliary limiting rod 6 is bent downward to provide more accurate sample positioning. The auxiliary limiting rod 6 can increase an additional limiting function based on the limiting rod 3, ensuring that the position of the test piece in the water is more stable, preventing the test piece from deviating due to the external force acting on the limiting rod 3 alone.

[0025] The top of the fixed support 2 is provided with a triangular-shaped outward protruding structure 7, which is designed as a handle to facilitate the user to carry or hang the device. The triangular-shaped outward protruding structure 7 can provide a stable hanging point, so that the entire device can be conveniently hung on the wall or other supports when not in use, saving space and keeping the work area clean; at the same time, it can also be used as a handle, making it more convenient for the inspector to move the device.

[0026] The test base 1 is provided with a plurality of holes 8. The holes 8 can allow water to flow freely, ensuring that the test piece is in full contact with the water during testing; it can also ensure that the accumulated water on the base can be quickly drained after testing is completed, avoiding water stagnation and facilitating the next step of detection.

[0027] The water absorption rate test auxiliary device of the present embodiment is used as follows: during the water absorption rate test, the test piece is placed on the test base 1, and the inspector moves the limiting rod 3 on the fixed support 2 to the appropriate position to ensure that the limiting rod 3 can fix the test piece after being locked by the locking structure 5. At this time, the counterweight 4 is placed between the locking structure 5 and the limiting rod 3, and the locking structure 5 is locked to the counterweight 4 and the limiting rod 3 by tightening the screw. After the above operations are completed, the device can be placed in water for soaking test.

[0028] During the test, the detection device is not sufficient due to the lack of counterweight, and the test sample of the thermal insulation material cannot always be completely immersed in water, which affects the full immersion of the test piece and the accuracy of the water absorption rate test. At the same time, the locking structure 5 can also fix the counterweight 4, which can solve the problem of sliding caused by the difference in underwater buoyancy, water flow impact or vibration of the counterweight 4, and meet the accuracy and reliability of the test piece on the device for water absorption rate test.

[0029] The material of the embodiment can be stainless steel or metal material with stainless steel coating. Since the device is immersed in water for a long time, the stainless steel material can ensure its durability and corrosion resistance.

[0030] Compared with the prior art, the water absorption test auxiliary device for thermal insulation materials has the following advantages:

[0031] (1) By setting the counterweight 4, the weight of the device is increased, which solves the problem that the difference in buoyancy between the thermal insulation material and the detection device easily leads to insufficient stability of the device placed underwater, the thermal insulation material sample cannot always remain completely immersed in water, and the accuracy of the test results is affected. With the design of the non-slip pad 9, it is locked on the limiting rod 3 through the locking structure 5, which plays the role of gasket stability, reduces the loosening problem caused by buoyancy difference, vibration and other external forces, on the other hand, the non-slip pad can reduce the sliding and wear caused by long-term rigid stress between metal parts, which can significantly enhance the functional stability of the locking structure and prolong the service life of the device.

[0032] (2) By using the limiting rod 3 and the locking structure 5 in cooperation, the movement of the test piece is effectively limited, so that even if the water body fluctuates during the test, the test piece can remain stable and will not deviate from the originally set position due to water flow impact.

[0033] (3) The counterweight 4 is placed on the locking structure 5 through the U-shaped hole, which simplifies the operation process and improves the work efficiency; at the same time, for the case of requiring a larger counterweight, multiple counterweights 4 with U-shaped holes can be conveniently stacked together and fixed through the selection of appropriate locking structure 5, so that the total amount of counterweight can be flexibly adjusted while maintaining the compactness of the structure.

[0034] (4) The design of the cylindrical counterweight 4 makes the center of gravity more concentrated, reduces the swing in water, and improves the overall stability of the device, ensuring that the test piece will not deviate during the test process due to the instability of the counterweight 4.

[0035] (5) The setting of the auxiliary limiting rod 6 can increase an additional limiting function on the basis of the limiting rod 3, ensuring that the position of the test piece in the water is more stable and preventing the test piece from deviating due to the single action of the limiting rod 3.

[0036] (6) The triangular-shaped convex structure 7 at the top of the fixed support 2 is designed as a handle, which is convenient for carrying or hanging the device, saves space and keeps the work area clean; at the same time, it can also be used as a handle, making it more convenient for the tester to move the device.

[0037] (7) The test base 1 is provided with a plurality of holes 8, which can make water flow freely, ensure that the bottom of the test piece is in full contact with water, and also ensure that the accumulated water on the base can be quickly drained after the test is completed, avoiding water retention and facilitating the next step of detection.

[0038] The above is only an embodiment of the present application, and common technical solutions and / or characteristics in the scheme are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. An auxiliary device for testing the water absorption rate of thermal insulation materials, comprising a test base, a fixing support and a limiting rod, the fixing support is arranged above the test base, characterized in that, The fixing support is provided with a vertically movable limiting rod, the end of the limiting rod is provided with a locking structure for locking, the locking structure is provided with a counterweight, the center of the counterweight is provided with a through hole, and the locking structure is connected with the limiting rod by penetrating the counterweight through the through hole.

2. The water absorption test aid for thermal insulation materials according to claim 1, characterized in that The end surfaces of the counterweight, the locking structure and the limiting rod are all fixedly bonded with anti-skid pads.

3. The water absorption test aid for thermal insulation materials according to claim 1 or 2, characterized in that The counterweight is a short and thick cylinder, and the through hole of the counterweight is a U-shaped hole.

4. The water absorption test aid for thermal insulation materials according to claim 3, characterized in that The locking structure is a loose spiral buckle.

5. The water absorption test aid for thermal insulation materials according to claim 4, characterized in that The center of the limiting rod is provided with an auxiliary limiting rod, and the end of the auxiliary limiting rod is bent downward.

6. The water absorption test aid for thermal insulation materials according to claim 5, characterized in that The top of the fixing support is a triangular outwardly convex structure.

7. The water absorption test aid for thermal insulation materials according to claim 6, characterized in that The test base is provided with a plurality of holes.

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