Multi-chamber alkali-resistant constant-temperature soaking device for rapid mortar bar method

Abstract

The utility model relates to a kind of multi-chamber alkali-resistant constant-temperature soaking device for quick mortar bar method, and it relates to the technical field of test equipment, it includes test box, heating base, mortar bar mounting rack and quick-release fixing structure;Heating base is located at the bottom of test box, constant-temperature soaking cavity is equipped in test box, each constant-temperature soaking cavity is equipped with sampling liquid supplementing port and liquid discharge port, and is equipped with mortar bar mounting rack.Press type supporting leg is formed in the bottom of mortar bar mounting rack, assembly groove is opened in the bottom of constant-temperature soaking cavity.Quick-release fixing structure includes fixed block, locking wedge and locking spring, fixed block is connected to press type supporting leg, locking wedge is movably installed in assembly groove, and locking spring drives locking wedge to move.Fixed block is provided with draw surface, locking wedge has guide slope, forms locking step portion with fixed block, and fixes mortar bar mounting rack.The utility model has independent partition soaking, mortar bar multiple limiting fixing prevents floating displacement and is convenient to disassemble and assemble, and prevents alkali condensation reflux and inhibits volatilization effect.

Description

Technical Field

[0001] This utility model relates to the technical field of testing equipment, and in particular to a multi-chamber alkali-resistant constant temperature immersion device for rapid mortar bar method. Background Technology

[0002] Concrete durability is a key factor determining the service life of major engineering projects such as bridges and dams. Alkali-silica reaction (ASR), due to its insidious nature, slow development, and difficulty in repair, has become one of the most destructive internal defects in concrete structures. The alkali-aggregate test chamber is a specialized constant-temperature curing device for conducting accelerated alkali-silica reaction tests. It provides a stable and controllable high-temperature immersion environment for mortar bar specimens and is an indispensable core tool in standard tests such as the rapid mortar bar method.

[0003] In existing technologies, ASR immersion of mortar bar specimens often uses a single container or ordinary water bath, with specimens from multiple test groups placed together in the same immersion environment, lacking independent zoning and a systematic numbering management structure. During the test, when transferring specimens, sampling and testing, changing alkali solutions, and identifying groups, specimens from different test groups are easily confused and misplaced, leading to disordered correspondence between test data and specimens, loss of group identification, and consequently affecting the traceability and reliability of test results. Utility Model Content

[0004] To address the problem of mixed placement of mortar rod test specimens from multiple test groups, which can easily lead to confusion and misplacement during sample transfer, this invention provides a multi-chamber alkali-resistant constant-temperature immersion device for the rapid mortar rod method.

[0005] This utility model provides a multi-chamber alkali-resistant constant-temperature soaking device for rapid mortar bar method, which adopts the following technical solution:

[0006] A multi-chamber alkali-resistant constant-temperature immersion device for rapid mortar bar method includes a test chamber for immersing mortar bars and a heating base installed at the bottom of the test chamber for constant temperature control of the test chamber; the test chamber has multiple spaced constant-temperature immersion chambers, each of which has an independently set sampling and replenishment port and a drain port; each constant-temperature immersion chamber is equipped with a mortar bar mounting frame for fixing the mortar bars to prevent them from floating and tipping over, and the mortar bar mounting frame and the bottom surface of the constant-temperature immersion chamber have a quick-release fixing structure for fixing the mortar bar mounting frame to prevent shaking.

[0007] The bottom of the mortar rod mounting bracket has a press-type support foot, and the inner bottom surface of the constant temperature soaking chamber has an assembly groove for inserting the press-type support foot; the quick-release fixing structure includes a fixing block fixedly connected to the bottom of the press-type support foot, a locking wedge block horizontally installed on the inner wall of the assembly groove, and a locking spring that drives the locking wedge block to move.

[0008] The side of the fixing block has a draft angle, and the locking wedge has a guide angle that cooperates with the draft angle; a locking step is formed between the fixing block and the pressing support foot.

[0009] Compared to existing single-chamber mortar rod ASR soaking devices, this solution employs multiple spaced constant-temperature soaking chambers. Each chamber can independently conduct mortar rod tests with different alkali concentrations. Through zoned management, each test group corresponds to an independent constant-temperature soaking chamber. During transfer, sampling, solution replacement, and numbering management, each test group does not interfere with the others, effectively avoiding the problem of mismatch between test data and specimen correspondence, and improving the traceability and reliability of test results. The quick-release fixing structure effectively secures the mortar rod, preventing it from floating and colliding during testing, thus affecting the accuracy of test data. The draft angle of the fixing block presses against the guide angle of the locking wedge, driving the locking wedge to compress the locking spring and slide backward, allowing the locking wedge to move horizontally. Once in position, the locking spring pushes the locking wedge back, engaging the locking step and locking the press-type support foot in the assembly groove to prevent it from coming out. Compared to directly using screws for fixing, this solution offers a faster and more convenient installation method.

[0010] Optionally, the test chamber has a sealing cover that covers the constant temperature immersion chamber; the bottom of the sealing cover has a condensation reflux structure that corresponds one-to-one with the constant temperature immersion chamber and is used for alkali reflux.

[0011] By adopting the above technical solution, the sealing cover is set to prevent the water inside the constant temperature immersion chamber from evaporating and escaping from the constant temperature immersion chamber. The setting of the condensation reflux structure can make the water evaporate from the liquid state to water vapor when heated during the test, and then condense into liquid water droplets when cooled and fall back into the constant temperature immersion chamber. This prevents the concentration of alkali solution from increasing due to water evaporation and deviating from the target test concentration, and prevents the test data detected in subsequent tests from deviating.

[0012] Optionally, a movable wedge is installed on the press-type support foot, the movable wedge having an unlocking slope, the inclination direction of the unlocking slope being opposite to that of the draft slope.

[0013] By adopting the above technical solution, the movable wedge can cooperate with the locking wedge. By continuing to press the entire mortar rod mounting frame, the movable wedge unlocks the locked press-type support foot, thereby facilitating the quick removal of the mortar rod mounting frame from the constant temperature soaking chamber.

[0014] Optionally, the bottom width of the movable wedge is greater than the top width of the fixed block.

[0015] By adopting the above technical solution, compared with the case where the widths of the movable wedge and the fixed block are the same, when the pressing support foot is pressed down, the draft slope of the fixed block presses against the guide slope of the locking wedge, causing the locking wedge to compress the locking spring and move horizontally. After the fixed block passes the locking wedge, the locking spring pushes the locking wedge forward to rebound. Since the bottom width of the movable wedge is greater than the top width of the fixed block, the rebounding locking wedge abuts against the bottom surface of the movable wedge and cannot continue to move forward along the unlocking slope, thus stopping at the locking step to lock the pressing support foot. This avoids the locking wedge sliding directly across the unlocking slope after moving along the draft slope, which would cause locking failure, making the installation process of the mortar rod mounting bracket more convenient and reliable.

[0016] Optionally, a lifting spring is provided on the inner bottom surface of the assembly slot, and the lifting spring drives the pressing support foot to always tend to exit the assembly slot.

[0017] By adopting the above technical solution, a lifting spring is installed on the inner bottom surface of the assembly slot, which can work with the movable wedge to fix the mortar rod mounting frame more stably, preventing the mortar rod mounting frame from shaking due to water flow. At the same time, after the mortar rod mounting frame is unlocked, the lifting spring can directly remove the mortar rod mounting frame from the assembly slot, thus facilitating the disassembly of the mortar rod mounting frame.

[0018] Optionally, the inner bottom surface of the mortar rod mounting bracket is arrayed with multiple locking sleeve structures for fixing the bottom end of the mortar rod; the locking sleeve structure includes an inner ring portion that is lifted and installed on the inner bottom surface of the mortar rod mounting bracket and an outer ring portion that is sleeved on the outside of the inner ring portion; the outer ring portion is fixed to the mortar rod mounting bracket; the center of the inner ring portion has a slot for inserting the mortar rod; a return spring is provided between the bottom of the inner ring portion and the mortar rod mounting bracket;

[0019] The inner wall of the outer ring portion has a deformation guide ring surface whose inner diameter gradually decreases from top to bottom, and the outer wall of the inner ring portion has a sliding surface that is adapted to the deformation guide ring surface.

[0020] By adopting the above technical solution, after the mortar rod is inserted into the slot, the inner ring is pressed down, and the deformation guide ring surface of the outer ring comes into contact with the sliding surface of the outer wall of the inner ring, causing elastic deformation and radial inward compression and contraction, thereby fixing and clamping the mortar rod, making the mortar rod more stable in the mortar rod mounting frame.

[0021] Optionally, the inner ring portion is provided with a deformation groove in the circumferential direction, and the deformation groove extends through the slot.

[0022] By adopting the above technical solution, after the deformation groove is opened in the circumferential direction, the inner ring is divided into multiple elastically deformable fixing ribs. When squeezed by the deformation guiding ring surface of the outer ring, it can shrink inward evenly to fix and clamp the mortar rod. Compared with the case where the deformation groove is not opened, it is easier to shrink and deform inward.

[0023] Optionally, the top of the mortar rod mounting bracket is equipped with a top limiting plate that cooperates with the locking sleeve structure and is used to fix the mortar rod; a height adjustment component is provided between the mortar rod mounting bracket and the top limiting plate.

[0024] By adopting the above technical solution, the top limiting plate can fix and limit the top of the mortar rod, and with the locking sleeve, it can form a double fixation in both the bottom and top directions, preventing the mortar rod from floating, tilting and shaking during soaking.

[0025] Optionally, the height adjustment assembly includes a column sleeve, a telescopic adjustment column slidably installed in the column sleeve, and a fixing buckle; both the column sleeve and the telescopic adjustment column have multiple sets of one-to-one mounting slots for adjusting the lifting height, and the fixing buckle is inserted into the mounting slot for installation.

[0026] By adopting the above technical solution, the height adjustment component can be fixed in the corresponding mounting slot according to the mortar rod of different heights to adjust the height, thereby adapting to the assembly requirements of mortar rods of different heights.

[0027] In summary, this utility model has at least one of the following beneficial technical effects:

[0028] 1. Compared to existing single-chamber mortar bar ASR soaking devices, this solution features multiple spaced constant-temperature soaking chambers. Each chamber can independently conduct mortar bar tests with different alkali concentrations. Through zoned management, each test group corresponds to an independent constant-temperature soaking chamber. During transfer, sampling, solution replacement, and numbering management, each test group does not interfere with the others, effectively avoiding the problem of mismatch between test data and specimen correspondence, and improving the traceability and reliability of test results. The quick-release fixing structure effectively secures the mortar bars, preventing them from floating and colliding during testing, thus affecting the accuracy of test data. The draft angle of the fixing block presses against the guide angle of the locking wedge, driving the locking wedge to compress the locking spring and slide backward, allowing the locking wedge to move horizontally. Once in position, the locking spring pushes the locking wedge back, locking it into the locking step, thus locking the press-type support foot in the assembly groove to prevent it from coming out. Compared to directly using screws for fixing, this solution is quicker and more convenient to install.

[0029] 2. Compared to cases where the widths of the movable wedge and the fixed block are the same, when the press-type support foot is pressed down, the draft slope of the fixed block presses against the guide slope of the locking wedge, causing the locking wedge to compress the locking spring and move horizontally. After the fixed block passes the locking wedge, the locking spring pushes the locking wedge forward to spring back. Because the bottom width of the movable wedge is greater than the top width of the fixed block, the spring-backed locking wedge abuts against the bottom surface of the movable wedge and cannot continue to move forward along the unlocking slope, thus stopping at the locking step to lock the press-type support foot. This avoids the locking wedge sliding directly across the unlocking slope after moving along the draft slope, which would cause locking failure, making the installation process of the mortar rod mounting bracket more convenient and reliable.

[0030] 3. After the mortar rod is inserted into the slot, the inner ring is pressed down. The deformation guide surface of the outer ring comes into contact with the sliding surface of the outer wall of the inner ring, and elastic deformation occurs. The mortar rod is compressed and contracted radially inward, thereby fixing and clamping the mortar rod, making the mortar rod more stable in the mortar rod mounting bracket. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a multi-chamber alkali-resistant constant temperature soaking device for rapid mortar bar method according to an embodiment of this application;

[0032] Figure 2 This is a schematic diagram of the structure of the constant temperature soaking chamber according to an embodiment of this application;

[0033] Figure 3 This is a schematic diagram of the mortar rod mounting bracket according to an embodiment of this application;

[0034] Figure 4 This is a schematic diagram of the locking sleeve structure according to an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the reverse side of the top limiting plate in an embodiment of this application;

[0036] Figure 6 This is a schematic diagram of the height adjustment component according to an embodiment of this application;

[0037] Figure 7 This is a schematic diagram of the quick-release fixing structure according to an embodiment of this application. Figure 1 ;

[0038] Figure 8 This is a schematic diagram of the quick-release fixing structure according to an embodiment of this application. Figure 2 .

[0039] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Test chamber; 11. Constant temperature immersion chamber; 111. Assembly slot; 112. Observation window; 113. Water level observation window; 114. Sampling and replenishment port; 115. Drain port; 12. Mortar rod mounting bracket; 121. Mounting plate; 122. Fence; 123. Top limiting plate; 1231. Rubber pressure ring; 124. Height adjustment assembly; 1241. Column sleeve; 1242. Telescopic adjustment column; 1243. Fixing buckle; 1244. Mounting slot; 125. Locking sleeve structure; 1251. Inner ring; 1252. Outer ring; 1253. Compound 1254. Position spring; 1255. Slot; 1256. Sliding surface; 1257. Deformation groove; 1258. Deformation guide ring surface; 1259. Press-type support foot; 13. Quick-release fixing structure; 131. Fixing block; 132. Locking wedge; 133. Locking spring; 134. Movable wedge; 135. Lifting spring; 136. Draft bevel; 137. Locking step; 138. Guide bevel; 139. Unlocking bevel; 14. Sealing cover; 141. Sealing ridge; 142. Sealing ring; 143. Condensation reflux structure; 1431. Condensation protrusion; 2. Heating base; 21. Intelligent control panel; 22. Switch. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0041] This utility model discloses a multi-chamber alkali-resistant constant temperature soaking device for rapid mortar bar method.

[0042] Reference Figure 1 A multi-chamber alkali-resistant constant-temperature immersion device for rapid mortar bar testing includes a test chamber 1 and a heating base 2. The test chamber 1 is used to test the mortar bars, and the heating base 2, located at the bottom of the test chamber 1, is used to maintain a constant temperature in the test chamber 1 to regulate the testing environment of the mortar bars. The heating base 2 has an intelligent control panel 21 and a switch 22. The intelligent control panel 21 is used to adjust the temperature of the heating base 2, and the switch 22 is used to start or stop the immersion device.

[0043] Reference Figure 1 and Figure 2 The test chamber 1 is made of alkali-resistant material and is heat-insulating. It has multiple constant-temperature immersion chambers 11, which are spaced apart and have the same volume. Each of the multiple constant-temperature immersion chambers 11 contains an alkali solution with a gradient distribution of concentration, for example, the concentration of the alkali solution in each constant-temperature immersion chamber 11 increases or decreases sequentially, to meet the requirements of gradient concentration comparison tests. Each constant-temperature immersion chamber 11 can accommodate a mortar rod for testing.

[0044] The test chamber 1 is equipped with a sealing cover 14 on the top. The bottom of the sealing cover 14 has sealing protrusions 141 corresponding to the constant temperature immersion chambers 11. When the sealing cover 14 is closed, the sealing protrusions 141 are inserted into the constant temperature immersion chambers 11. A sealing ring 142 is provided between the sealing protrusions 141 and the constant temperature immersion chambers 11. The sealing cover 14 closes the constant temperature immersion chambers 11, thus maintaining a sealed environment for the mortar rod alkali resistance test. Simultaneously, the bottom of the sealing cover 14 has a condensation reflux structure 143 corresponding to the constant temperature immersion chambers 11. The condensation reflux structure 143 includes a downward-protruding condensation protrusion 1431 located inside each sealing protrusion 141. After the alkali solution evaporates, it condenses on the condensation protrusion 1431 and flows downward along the condensation protrusion 1431, thus flowing back into the constant temperature immersion chambers 11.

[0045] Furthermore, to ensure that each constant-temperature soaking chamber 11 can independently conduct alkali resistance tests on mortar bars, each constant-temperature soaking chamber 11 has an independently configured sampling and replenishment port 114 and a drain port 115. The sampling and replenishment port 114 is located on the sealing cover 14 and is used for sampling or replenishing the alkali solution. The drain port 115 is located on one side of the constant-temperature soaking chamber 11 and is used for draining the alkali solution inside the constant-temperature soaking chamber 11.

[0046] Meanwhile, each constant-temperature immersion chamber 11 has an observation window 112 on one side, which is used to observe the mortar rods during the test. A strip-shaped water level observation window 113 is provided on the side of the test chamber 1 at a position corresponding to each constant-temperature immersion chamber 11. The water level observation window 113 extends vertically and is used to observe the changes in the alkaline solution level in the corresponding constant-temperature immersion chamber 11, so that when the liquid level is lower than the required immersion height of the mortar rod, alkaline solution can be replenished in time through the sampling and replenishment port 114.

[0047] Reference Figure 1 and Figure 3 In this embodiment, each constant temperature soaking chamber 11 is equipped with a mortar rod mounting bracket 12 for fixing mortar rods. The mortar rod mounting bracket 12 is made of alkali-resistant material. The mortar rod mounting bracket 12 includes a mounting plate 121, a fence 122 fixed around the mounting plate 121, a top limiting plate 123, and a locking sleeve structure 125.

[0048] Reference Figure 3 , Figure 4 and Figure 5 A locking sleeve structure 125 is mounted on the mounting plate 121 and is used to fix the bottom end of the mortar rod. A top limiting plate 123 is raised and lowered on top of the fence 122 via a height adjustment assembly 124. The bottom of the top limiting plate 123 has multiple rubber pressure rings 1231 corresponding to the mortar rods, and the top limiting plate 123 is used to fix the top end of the mortar rods. The top limiting plate 123 and the locking sleeve structure 125 cooperate to limit and fix the mortar rods.

[0049] The locking sleeve structure 125 includes an inner ring portion 1251 and an outer ring portion 1252.

[0050] The inner ring portion 1251 is elliptical and mounted on the inner bottom surface of the mortar rod mounting bracket 12. A return spring 1253 is provided between the bottom of the inner ring portion 1251 and the mounting plate 121. The inner ring portion 1251 is annular, and its center has a slot 1254 for inserting a mortar rod. The outer wall of the inner ring portion 1251 has a sliding surface 1255 with a radius that gradually decreases from top to bottom. A deformation groove 1256 is provided circumferentially in the inner ring portion 1251, extending to the slot 1254.

[0051] The outer ring portion 1252 is fitted over the inner ring portion 1251 and is fixed to the mounting plate 121. The inner wall of the outer ring portion 1252 has a deformation guide ring surface 1257, the inner diameter of which gradually decreases from top to bottom. The deformation guide ring surface 1257 is adapted to the sliding surface 1255.

[0052] When the operator installs the mortar rod into the slot 1254 of the inner ring 1251, the inner ring 1251 is pressed down by external force to compress the return spring 1253. The sliding surface 1255 of the outer wall of the inner ring 1251 abuts against the deformation guide ring surface 1257 of the inner wall of the outer ring 1252. The deformation guide ring surface 1257 drives the sliding surface 1255 to deform in the direction of the central axis, and the inward elastic deformation force clamps the mortar rod.

[0053] Reference Figure 3 and Figure 6 The height adjustment assembly 124 includes a column sleeve 1241, a telescopic adjustment column 1242, and a fixing buckle 1243. The column sleeve 1241 is hollow inside to accommodate the telescopic adjustment column 1242. The telescopic adjustment column 1242 is slidably installed within the column sleeve 1241 and can be adjusted vertically. Both the column sleeve 1241 and the telescopic adjustment column 1242 have multiple sets of one-to-one mounting slots 1244 for adjusting the lifting height. The fixing buckle 1243 can be inserted into the mounting slots 1244 for installation, thereby locking the telescopic adjustment column 1242.

[0054] In use, pull the telescopic adjustment column 1242 out from inside the column sleeve 1241, adjust the telescopic adjustment column 1242 to the position corresponding to the height of the mortar rod, and then insert the fixing buckle 1243 into the corresponding mounting slot 1244 to lock the telescopic adjustment column 1242.

[0055] Reference Figure 1 , Figure 2 , Figure 3 as well as Figure 7In this embodiment, all mortar rods are first installed into the mortar rod mounting bracket 12, and then the mortar rod mounting bracket 12 together with the mortar rods is placed in the constant temperature soaking chamber 11. The mounting plate 121 of the mortar rod mounting bracket 12 has press-type support feet 126 at the four corners of its bottom. The inner bottom surface of the constant temperature soaking chamber 11 has an assembly groove 111. There is a quick-release fixing structure 13 between the press-type support feet 126 and the assembly groove 111. The quick-release fixing structure 13 is used to fix the mortar rod mounting bracket 12 to prevent shaking.

[0056] Reference Figure 2 , Figure 3 , Figure 7 as well as Figure 8 The quick-release fixing structure 13 includes a fixing block 131, a locking wedge 132, a locking spring 133, a movable wedge 134, and a lifting spring 135.

[0057] The fixing block 131 is fixedly connected to the bottom of the press-type support foot 126. The vertical cross-section of the fixing block 131 is an inverted trapezoid, and its width gradually decreases from top to bottom, so that it has draft slopes 136 on both sides. A locking step portion 137 is formed between the fixing block 131 and the press-type support foot 126.

[0058] The locking wedge 132 is horizontally slidably installed on the inner wall of the assembly groove 111, and the locking spring 133 is installed in the assembly groove 111, and the locking spring 133 connects one end of the locking wedge 132 and the inner wall of the assembly groove 111.

[0059] The locking wedge 132 has a guide slope 138 that mates with the draft slope 136, and the inclination direction of the guide slope 138 is the same as that of the draft slope 136.

[0060] When the fixing block 131 is inserted into the assembly slot 111, the fixing block 131 moves downward, and the draft slope 136 of the fixing block 131 slides relative to the guide slope 138 of the locking wedge 132, thereby pushing the locking wedge 132. When the fixing block 131 is below the locking wedge 132, the locking wedge 132 extends under the drive of the locking spring 133 and abuts against the locking step portion 137, thereby locking the fixing block 131 and fixing the mortar rod mounting bracket 12 in the constant temperature soaking chamber 11.

[0061] The lifting spring 135 is installed on the inner bottom surface of the assembly slot 111, directly opposite the bottom of the fixing block 131. When the fixing block 131 is installed into the assembly slot 111, it abuts against the lifting spring 135, which drives the fixing block 131 to always tend to exit the assembly slot 111. When the fixing block 131 is locked, the lifting spring 135 further presses the fixing block 131 against the locking wedge 132, making the mortar rod mounting bracket 12 more stable.

[0062] The movable wedge 134 is slidably mounted on the push-button support 126 and is located between the fixed block 131 and the mounting plate 121. The vertical cross-section of the movable wedge 134 is trapezoidal, and its width gradually increases from top to bottom, resulting in unlocking ramps 139 on both sides. The inclination direction of the unlocking ramps 139 is opposite to the inclination direction of the draft ramps 136. At the same time, the bottom width of the movable wedge 134 is greater than the top width of the fixed block 131.

[0063] When the press-type support foot 126 needs to be unlocked, it is pressed again, and the bottom edge of the movable wedge 134 abuts against the guide slope 138 of the locking wedge 132. The locking wedge 132 drives the movable wedge 134 to move upward. When the movable wedge 134 abuts against the bottom of the mounting plate 121, the press-type support foot 126 is pressed again, and the movable wedge 134 begins to drive the locking wedge 132 to retract, so that the edge of the locking wedge 132 moves onto the unlocking slope 139. At this time, the press-type support foot 126 is lifted upward, and the locking wedge 132 can first move downward along the unlocking slope 139, and then move directly onto the draft slope 136 of the fixed block 131, and move downward along the draft slope 136, thereby causing the fixed block 131 to exit the assembly slot 111.

[0064] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A multi-chamber alkali-resistant constant-temperature immersion device for rapid mortar bar method, characterized in that, The test chamber (1) includes a test chamber (1) for soaking mortar rods and a heating base (2) installed at the bottom of the test chamber (1) for constant temperature control of the test chamber (1); the test chamber (1) has multiple spaced constant temperature soaking chambers (11), each of the constant temperature soaking chambers (11) has an independently provided sampling and replenishment port (114) and a drain port (115); each of the constant temperature soaking chambers (11) is equipped with a mortar rod mounting bracket (12) for fixing the mortar rods to prevent them from floating and tipping over, and there is a quick-release fixing structure (13) between the mortar rod mounting bracket (12) and the bottom surface of the constant temperature soaking chamber (11) for fixing the mortar rod mounting bracket (12) to prevent shaking. The bottom of the mortar rod mounting bracket (12) has a press-type support foot (126), and the inner bottom surface of the constant temperature soaking chamber (11) has an assembly groove (111) for inserting the press-type support foot (126); the quick-release fixing structure (13) includes a fixing block (131) fixedly connected to the bottom of the press-type support foot (126), a locking wedge (132) horizontally movable and installed on the inner wall of the assembly groove (111), and a locking spring (133) that drives the locking wedge (132) to move. The side of the fixing block (131) has a draft slope (136), and the locking wedge (132) has a guide slope (138) that cooperates with the draft slope (136); a locking step (137) is formed between the fixing block (131) and the pressing support foot (126).

2. The multi-chamber alkali-resistant constant-temperature immersion device for rapid mortar bar method according to claim 1, characterized in that: The test chamber (1) has a sealing cover (14) that covers the constant temperature soaking chamber (11); the bottom of the sealing cover (14) has a condensation reflux structure (143) that corresponds one-to-one with the constant temperature soaking chamber (11) and is used for alkali reflux.

3. The multi-chamber alkali-resistant constant-temperature immersion device for rapid mortar bar method according to claim 1, characterized in that: The press-type support foot (126) is equipped with a movable wedge (134) that is raised and lowered. The movable wedge (134) has an unlocking slope (139) and the tilting direction of the unlocking slope (139) is opposite to that of the draft slope (136).

4. A multi-chamber alkali-resistant constant-temperature immersion device for rapid mortar bar method according to claim 3, characterized in that: The bottom width of the movable wedge (134) is greater than the top width of the fixed block (131).

5. A multi-chamber alkali-resistant constant-temperature immersion device for rapid mortar bar method according to claim 4, characterized in that: The inner bottom surface of the assembly slot (111) is provided with a lifting spring (135), which drives the pressing support foot (126) to always have the tendency to exit the assembly slot (111).

6. A multi-chamber alkali-resistant constant-temperature immersion device for rapid mortar bar method according to claim 1, characterized in that: The inner bottom surface of the mortar rod mounting bracket (12) is provided with a plurality of locking sleeve structures (125) for fixing the bottom end of the mortar rod; the locking sleeve structure (125) includes an inner ring portion (1251) that is lifted and installed on the inner bottom surface of the mortar rod mounting bracket (12) and an outer ring portion (1252) that is sleeved on the outside of the inner ring portion (1251); the outer ring portion (1252) is fixed to the mortar rod mounting bracket (12); the center of the inner ring portion (1251) has a slot (1254) for inserting the mortar rod; a return spring (1253) is provided between the bottom of the inner ring portion (1251) and the mortar rod mounting bracket (12). The inner wall of the outer ring (1252) has a deformation guide ring (1257) with an inner diameter that gradually decreases from top to bottom, and the outer wall of the inner ring (1251) has a sliding surface (1255) that is adapted to the deformation guide ring (1257).

7. A multi-chamber alkali-resistant constant-temperature immersion device for rapid mortar bar method according to claim 6, characterized in that: The inner ring (1251) is provided with a deformation groove (1256) in the circumferential direction, and the deformation groove (1256) extends through the slot (1254).

8. A multi-chamber alkali-resistant constant-temperature immersion device for rapid mortar bar method according to claim 6, characterized in that: The top of the mortar rod mounting bracket (12) is equipped with a top limiting plate (123) that cooperates with the locking sleeve structure (125) and is used to fix the mortar rod; a height adjustment component (124) is provided between the mortar rod mounting bracket (12) and the top limiting plate (123).

9. A multi-chamber alkali-resistant constant-temperature immersion device for rapid mortar bar method according to claim 8, characterized in that: The height adjustment assembly (124) includes a column sleeve (1241), a telescopic adjustment column (1242) slidably installed in the column sleeve (1241), and a fixing buckle (1243); the column sleeve (1241) and the telescopic adjustment column (1242) are each provided with multiple sets of one-to-one mounting slots (1244) for adjusting the lifting height, and the fixing buckle (1243) is inserted into the mounting slot (1244) for installation.

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