Easily detachable side leakage resistant and impervious mold
By designing an easily detachable, leak-proof and seepage-resistant mold, and using a split half-mold body and rotating shaft connection, combined with sealant and locking components, the problems of cumbersome sealing and difficult demolding in the existing technology are solved, realizing fast and convenient test operation and efficient test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN HIGHWAY & BRIDGE ENG MONITORING STATION CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-08-04
AI Technical Summary
In existing water penetration resistance tests, sealing methods are cumbersome and pollute the environment, demolding is difficult and can damage the specimen, the test process is physically demanding and poses a risk of workplace injury, and friction damage to the side of the specimen can lead to large errors.
Design an easy-to-disassemble anti-leakage and seepage-proof mold. It adopts a split half-mold body connected by a rotating shaft, combined with sealant and locking components to achieve rapid mold insertion and demolding, and ensures no side leakage through an airtightness detection component.
It enables rapid and convenient specimen placement and demolding, avoids manual handling, reduces manpower consumption, improves test efficiency, and ensures the accuracy of test data through airtightness testing.
Smart Images

Figure CN224594418U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water permeability testing technology, and in particular to an easily disassembled anti-leakage and anti-permeability mold. Background Technology
[0002] Water permeability testing is a crucial method for evaluating the water resistance of building materials such as concrete and mortar, and the sealing effect directly affects the accuracy of the test data. Existing sealing methods include paraffin sealing, cement grease sealing, and sealing sleeve sealing. Among these, the paraffin sealing method is cumbersome and environmentally polluting, requiring repeated application of 5-6 coats of melted paraffin, and the release of harmful gases when heated. The cement grease sealing method leads to difficulty in demolding; if the cement grease mixture is too strong, it requires forceful disassembly, resulting in specimen damage. The sealing sleeve method uses an elastic rubber sleeve to wrap the specimen, pressing it into the rigid mold from the large end with a press, and then pressing it out from the small end with the press during demolding. During the test, the mold and specimen need to be repeatedly moved, which is physically demanding for the testing personnel and poses a risk of workplace injury. Furthermore, because the frustum-shaped water resistance specimen uses a sealing measure on its sides, the friction between the specimen's sides and the inside of the mold is significant during insertion and demolding, easily damaging the specimen and causing test errors. Utility Model Content
[0003] To address the shortcomings of existing technologies, this invention provides an easily disassembled anti-leakage and seepage-proof mold that enables rapid mold insertion and removal without the need for repeated pressing of the specimen by a press. Demolding is convenient and does not damage the specimen or the mold.
[0004] To address the aforementioned technical problems, this utility model provides an easily detachable anti-leakage and seepage-proof mold, comprising: a main mold assembly, which is generally shaped like a frustum of a cone, the main mold assembly including two opposing half-mold bodies with sealant applied to the inner walls of the half-mold bodies; a drive assembly, including a rotating shaft and two connecting pieces hinged to the rotating shaft, the two connecting pieces being respectively connected to a first sidewall on the same side of the two half-mold bodies; a locking assembly, respectively disposed on the second sidewalls of the two half-mold bodies, the locking assembly being used to fix the half-mold bodies after mold closing; and an airtightness detection assembly, detachably connected to the main mold assembly and / or the locking assembly, the airtightness detection assembly being used to detect the airtightness after mold closing.
[0005] As an improvement to the above solution, the semi-mold body is provided with a frustum-shaped cavity; the sealant includes: a main body that fits into the cavity; and two extensions that are respectively connected to both ends of the main body and extend to the two sides of the semi-mold body.
[0006] As an improvement to the above solution, the locking assembly includes at least two sets of locking units vertically arranged along the mold closing point of the main mold assembly; the locking unit includes two locking blocks located on the same horizontal plane, the two locking blocks are respectively fixed to the mold closing edge of the second side wall of the two half mold bodies, and the two locking blocks are provided with coaxial threaded holes; when the mold is closed, the two locking blocks abut against each other and are fixed by bolts.
[0007] As an improvement to the above solution, when the two locking blocks of the locking unit are closed, a detection gap is formed, and the detection gaps of each group of the locking units are located on the same vertical line; the airtightness detection component includes a laser detection unit, which is used to detect the alignment of each group of the detection gaps.
[0008] As an improvement to the above solution, the laser detection unit includes: a laser emitter, detachably mounted on the uppermost locking unit, the laser path of the laser emitter being arranged along the detection gap; and a laser receiver, detachably mounted on the lowermost locking unit, the laser receiver being used to receive the laser signal emitted by the laser emitter.
[0009] As an improvement to the above solution, both the laser transmitter and the laser receiver are provided with magnetic bases, and both the laser transmitter and the laser receiver are magnetically connected to the locking unit through the magnetic bases.
[0010] As an improvement to the above solution, the airtightness testing component further includes an ultrasonic detector, which is detachably fixed to the upper end of the main mold component.
[0011] As an improvement to the above solution, both the ultrasonic detector and the laser receiver are integrated with an wireless transmission unit, which is connected to an external controller.
[0012] As an improvement to the above solution, the airtightness detection component also includes an alarm, which is connected to the ultrasonic detector and the laser receiver.
[0013] As an improvement to the above scheme, the semi-mold body is a double-layer composite structure.
[0014] The beneficial effects of implementing this utility model are as follows:
[0015] This utility model discloses an easily detachable, leak-proof, and seepage-resistant mold. It consists of two separate half-mold bodies connected by a rotating shaft. When closing the mold, simply push the connecting piece to rotate the shaft until the two half-mold bodies fit together, and then lock them in place using a locking assembly to achieve a seal. The process of inserting the specimen into the mold is convenient, avoiding manual handling of the specimen and mold, saving significant manpower and improving testing efficiency. Furthermore, the internal sealant achieves a lateral seal between the specimen and the mold, and an airtightness testing component is used to verify airtightness, thus preventing side leakage. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an easily detachable anti-leakage and seepage-proof mold in the mold-opening state according to an embodiment of this application;
[0017] Figure 2 This is a top view of an easily detachable anti-leakage and seepage-proof mold in the mold-closed state according to an embodiment of this application;
[0018] Figure 3 This is a schematic diagram of the structure of a sealant for an easily detachable anti-leakage and seepage-proof mold in an embodiment of this application;
[0019] Figure 4 This is a side view of an easily detachable anti-leakage and seepage-proof mold installation airtightness testing component in an embodiment of this application.
[0020] The reference numerals in the attached drawings are explained as follows: 110, half mold body; 120, sealant; 121, main adhesive body; 122, extension; 210, rotating shaft; 220, connecting piece; 310, locking block; 320, bolt; 410, laser emitter; 420, laser receiver; 430, ultrasonic detector. Detailed Implementation
[0021] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.
[0022] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of an easily detachable anti-leakage and seepage-proof mold in the mold-opening state according to an embodiment of this application; Figure 2This is a top view of an easily detachable anti-leakage and seepage-proof mold in the mold-closed state according to an embodiment of this application. As shown in the figure, the specimen in the water penetration test is shaped like a frustum of a cone. The mold includes: a main mold assembly, which is shaped like a frustum of a cone with a central connection. The main mold assembly includes two half-mold bodies 110 with two cavities facing each other. The inner wall of the half-mold body 110 is provided with sealant 120; a drive assembly, which includes a rotating shaft 210 and two connecting pieces 220 hinged to the rotating shaft 210. The two connecting pieces 220 are respectively connected to the first side wall on the same side of the two half-mold bodies 110; a locking assembly, which is respectively disposed on the second side wall of the two half-mold bodies 110. The locking assembly is used to fix the half-mold bodies 110 after mold closing; and an airtightness detection assembly, which is detachably connected to the main mold assembly and / or the locking assembly. The airtightness detection assembly is used to detect the airtightness after mold closing. By setting up two separate mold halves 110 and connecting them via a rotating shaft 210, when closing the mold, simply push the connecting piece 220 to rotate the rotating shaft 210 until the two mold halves 110 are in contact, and then lock them in place using a locking assembly to achieve a seal. The process of inserting the specimen into the mold is convenient, avoiding manual handling of the specimen and mold, saving a lot of manpower and improving testing efficiency. Furthermore, the internal sealant 120 can achieve a lateral seal between the specimen and the mold, and the airtightness can be tested using an airtightness testing assembly to prevent side leakage.
[0023] See Figure 1 and Figure 3 , Figure 3 This is a schematic diagram of the structure of a sealant 120 for an easily detachable anti-leakage and seepage-proof mold in an embodiment of this application;
[0024] As an improvement to the above solution, the semi-mold body 110 has a frustum-shaped cavity; the sealant 120 includes: a main sealant 121, which adheres to the cavity; and two extensions 122, which are respectively connected to both ends of the main sealant 121, extending to two sides of the semi-mold body 110. During mold closing, the extensions 122 are sealed by being pressed against the sides of the semi-mold body 110.
[0025] See Figure 1 Furthermore, in this embodiment, the locking assembly includes two sets of locking units vertically arranged along the mold closing point of the main mold assembly; each locking unit includes two locking blocks 310 located on the same horizontal plane, the two locking blocks 310 being fixed to the mold closing edges of the second sidewalls of the two half-mold bodies 110 respectively, and the two locking blocks 310 having coaxial threaded holes; when the mold is closed, the two locking blocks 310 abut against each other and are fixed by bolts 320. During mold closing, the two half-mold bodies 110 are first brought together by rotating the shaft 210, and then bolts 320 are screwed into adjacent sealing blocks to achieve a seal.
[0026] See Figure 4 , Figure 4 This is a side view of an easily detachable anti-leakage and seepage-proof mold installation airtightness testing component in an embodiment of this application.
[0027] Furthermore, in this embodiment, when the two locking blocks 310 of the locking unit are closed, a detection gap is formed, and the detection gaps of each group of the locking units are located on the same vertical line; the airtightness detection component includes a laser detection unit, which is used to detect the alignment of each group of the detection gaps.
[0028] Specifically, the laser detection unit includes: a laser emitter 410, detachably mounted on the uppermost locking unit, with the laser path of the laser emitter 410 arranged along the detection gap; and a laser receiver 420, detachably mounted on the lowermost locking unit, used to receive the laser signal emitted by the laser emitter 410. During detection, the laser emitter 410 emits a beam of light, and the airtightness of the mold is determined by the signal intensity received by the laser receiver 420. If the received signal intensity is >85%, the airtightness is acceptable; if the signal intensity is 70%–85%, it indicates a slight leak, requiring secondary tightening; and if the signal intensity is <70%, it indicates a serious leak, requiring mold opening and reinstallation.
[0029] Preferably, both the laser emitter 410 and the laser receiver 420 are provided with magnetic bases, and both the laser emitter 410 and the laser receiver 420 are magnetically connected to the locking unit through the magnetic bases, which can realize quick assembly and disassembly.
[0030] Furthermore, in this embodiment, the airtightness detection component also includes an ultrasonic detector 430, which is detachably fixed to the upper end of the main mold assembly. In use, ultrasonic waves are emitted into the main mold assembly through the ultrasonic detector 430, and the attenuation rate of the sound waves is analyzed through the receiving end of the ultrasonic detector 430. If the attenuation rate is <5dB, the airtightness is acceptable; if the attenuation rate is >8dB, a minor leak is indicated, requiring secondary tightening; if the attenuation rate is >12dB, a serious leak is indicated, requiring mold opening and reinstallation. Traditional pressure-holding visual inspection methods require more than 5 minutes to determine leakage; in this embodiment, a laser and ultrasonic detection module achieves a real-time response of 0.3 seconds.
[0031] Preferably, both the ultrasonic detector 430 and the laser receiver 420 integrate an wireless transmission unit, which is connected to an external controller. The controller can be a separate console or integrated into the operator's mobile device.
[0032] Preferably, the airtightness detection component further includes an alarm, which is connected to the ultrasonic detector 430 and the laser receiver 420. When the airtightness fails to meet the requirements, the alarm will sound.
[0033] Preferably, the semi-mold 110 has a double-layer composite structure, with the inner layer being ZCuSn10Zn2 tin bronze with a thickness of 8mm to 10mm and the outer layer being aluminum alloy with a thickness of 6mm to 8mm. The two layers are joined by hot isostatic diffusion welding, which can improve the overall strength of the mold.
[0034] Furthermore, this embodiment provides an installation method for an easily detachable anti-leakage and seepage-proof mold, including the following steps:
[0035] Place the specimen into the cavity of any half mold 110, push the connecting piece 220 so that the rotating shaft 210 rotates until the two half molds 110 fit together, and then screw the bolts 320 into the adjacent sealing blocks to achieve a seal.
[0036] Install a laser emitter 410 and a laser detector on the locking unit to perform an airtightness test;
[0037] If the first airtightness test is passed, an ultrasonic detector 430 is installed on the half-mold 110 for a second airtightness test; if it is passed, the laser emitter 410, the laser detector, and the ultrasonic detector 430 are removed for the next test.
[0038] Preferably, if the airtightness fails the test in the first or second airtightness test, the mold needs to be opened and reinstalled.
[0039] As can be seen from the above, the easily detachable anti-leakage and seepage-proof mold of this utility model consists of two separate half-mold bodies connected by a rotating shaft. When closing the mold, simply push the connecting piece to rotate the shaft until the two half-mold bodies fit together, and then lock them in place using a locking assembly to achieve a seal. The process of inserting the specimen into the mold is convenient, avoiding manual handling of the specimen and mold, saving a significant amount of manpower and improving testing efficiency. Furthermore, the internal sealant achieves a lateral seal between the specimen and the mold, and the airtightness is tested using an airtightness testing component, thus preventing side leakage.
[0040] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. A releasable, side leakage resistant, impervious mold characterized in that, include: The main mold assembly is shaped like a frustum of a cone. The main mold assembly includes two opposing half-mold bodies with sealant on the inner wall of each half-mold body. The drive assembly includes a rotating shaft and two connecting pieces hinged to the rotating shaft, the two connecting pieces being respectively connected to a first sidewall on the same side of the two half-molds; Locking components are respectively disposed on the second sidewalls of the two half-mold bodies, and the locking components are used to fix the half-mold bodies after mold closing; An airtightness testing component is detachably connected to the main mold assembly and / or locking assembly, and the airtightness testing component is used to test the airtightness after mold closing.
2. The easy-to-disassemble side leakage resistant and impervious mold according to claim 1, wherein The semi-mold body has a frustum-shaped cavity; the sealant includes: The main colloid is fitted to the cavity; Two extensions are connected to both ends of the main body, and the two extensions extend to the two sides of the semi-mold body respectively.
3. The easy-to-disassemble side leakage resistant and impervious mold according to claim 1, wherein The locking assembly includes at least two sets of locking units vertically arranged along the mold closing point of the main mold assembly; the locking unit includes two locking blocks located on the same horizontal plane, the two locking blocks are respectively fixed to the mold closing edge of the second sidewall of the two half mold bodies, and the two locking blocks are provided with coaxial threaded holes; when the mold is closed, the two locking blocks abut against each other and are fixed by bolts.
4. The easy-to-disassemble side leakage resistant and impermeable mold according to claim 3, characterized in that, When the two locking blocks of the locking unit are closed, a detection gap is formed, and the detection gaps of each group of the locking units are located on the same vertical line; The airtightness testing component includes a laser testing unit, which is used to detect the alignment of each group of testing gaps.
5. The easy-to-disassemble side leakage resistant and impermeable mold according to claim 4, characterized in that, The laser detection unit includes: A laser emitter is detachably mounted on the uppermost locking unit, and the laser path of the laser emitter is set along the detection gap; A laser receiver is detachably mounted at the lower end of the locking unit, and the laser receiver is used to receive the laser signal emitted by the laser transmitter.
6. The easy-to-disassemble side leakage resistant and impermeable mold according to claim 5, characterized in that, Both the laser transmitter and the laser receiver are equipped with magnetic mounts, and both are magnetically connected to the locking unit via the magnetic mounts.
7. The easy-to-disassemble side leakage resistant and impermeable mold according to claim 5, characterized in that, The airtightness testing component also includes an ultrasonic detector, which is detachably fixed to the upper end of the main mold component.
8. The easy-to-disassemble side leakage resistant and impervious mold according to claim 7, wherein Both the ultrasonic detector and the laser receiver have an integrated wireless transmission unit, which is connected to an external controller.
9. The easy-to-disassemble side leakage resistant and impervious mold according to claim 8, characterized by, The airtightness detection component also includes an alarm, which is connected to the ultrasonic detector and the laser receiver.
10. The easy-to-disassemble side leakage resistant and impermeable mold according to claim 1, characterized in that, The semi-mold body has a double-layer composite structure.