A readily detectable cement mixing tank

Abstract

The utility model discloses an easily detectable cement mixing tank, including mixing tank body, support frame and top cap, the mixing tank body outside is installed with a plurality of annular air bag, the top cap top is installed with air pump, wherein, the annular air bag is installed in the mixing tank body cylinder wall weld joint department, a plurality of annular air bag all is provided with the air pressure sensor of detecting own internal air pressure, the annular air bag inside is provided with a plurality of air holes, the air hole with the mixing tank body cylinder wall weld joint department position corresponds, the air pump output end is installed with L type air pipe, the L type air pipe inner wall slidingly connected has piston pipe, through annular air bag and weld joint department, air hole accurate corresponding weld joint, the weld joint leakage is converted into the air pressure change of air pressure sensor identifiable, need not manual investigation tank wall, solve the difficult discovery pain point of leakage, and air pressure sensor real -time monitoring replaces traditional shutdown and detects, improves the detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cement mixing tank technology, specifically a cement mixing tank that is easy to test. Background Technology

[0002] In the construction industry, cement mixing tanks, as the core working component of cement mixers, bear the crucial function of containing and mixing materials such as cement, water, aggregates, and admixtures. Their performance directly affects the uniformity and stability of the concrete mixture, thus determining the quality of the construction project. To meet the demand for mixing large quantities of materials, traditional cement mixing tanks typically have a large volume, and their side walls are often constructed by welding several annular cylindrical walls together. While this welding method allows for the manufacture of large-volume tanks, during long-term use, the weld joints are prone to fatigue damage due to the continuous impact, vibration, and friction of the materials inside the tank. Furthermore, the water and admixtures involved in cement mixing can corrode the weld joints, further accelerating their aging and damage. This results in a high risk of leakage at the weld joints of traditional cement mixing tanks. Once a leak occurs, it not only causes material loss affecting the accuracy of the concrete mix proportions but also creates safety hazards and increases maintenance costs due to material accumulation. More importantly, the weld joints of traditional tanks are hidden within the side wall structure, making initial leaks difficult to detect visually. Routine inspections require shutdown for investigation, which is cumbersome, inefficient, and can also disrupt construction progress due to downtime.

[0003] Therefore, this utility model provides a cement mixing tank that is easy to inspect. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, this utility model provides a cement mixing tank that is easy to inspect, so as to solve the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an easily inspectable cement mixing tank, comprising a mixing tank body, a support frame, and a top cover. Several annular air bladders are installed on the outer side of the mixing tank body, and an air pump is installed on the top of the top cover. The annular air bladders are installed at the weld seams of the mixing tank body's cylindrical wall. Each of the annular air bladders is equipped with a pressure sensor to detect its internal air pressure. Several vent holes are opened on the inner side of each annular air bladder, and the vent holes correspond to the positions of the weld seams on the mixing tank body's cylindrical wall. An L-shaped vent pipe is installed at the output end of the air pump. A piston tube is slidably connected to the inner wall of the L-shaped vent pipe, and an exhaust hole is opened on the side wall of the piston tube. When the piston tube drives the exhaust hole to descend and enter the interior of the mixing tank body, it delivers air.

[0006] Preferably, telescopic frames are installed on both sides of the mixing tank body, and both telescopic frames are installed on the side wall of the top cover. One of the telescopic frames is equipped with a drive unit for adjusting the angle of the top cover.

[0007] Preferably, a sealing ring is installed at the bottom of the top cover, and the sealing ring is inserted into the inner side of the top of the mixing tank body to increase the sealing performance.

[0008] Preferably, an annular clearance groove is provided on the inner side of the annular airbag, the annular clearance groove makes way for the weld of the cylinder wall of the mixing tank body, and the annular clearance groove corresponds to the position of the vent hole.

[0009] Preferably, an annular protective shell is provided on the outside of the annular airbag, the annular protective shell is installed on the outside of the mixing tank body, and an audible and visual alarm electrically connected to the air pressure sensor is provided on the outside of the mixing tank body.

[0010] Preferably, the top cover has an inner circular groove, a limit ring is installed on the side wall of the piston tube, the limit ring is slidably connected to the inner wall of the inner circular groove, and a return spring is provided at the bottom of the limit ring, the return spring is sleeved on the outside of the piston tube. Beneficial effects

[0011] Compared with the prior art, the present invention has the following advantages: This invention utilizes an annular airbag that fits precisely against the weld seam, with the vent holes accurately corresponding to the weld. This transforms weld seam leaks into pressure changes detectable by a pressure sensor, eliminating the need for manual inspection of the tank wall and solving the problem of difficult-to-detect leaks. Furthermore, the real-time monitoring by the pressure sensor replaces traditional shutdown and disassembly inspections, improving detection efficiency and ensuring continuous operation. In addition, high-pressure inflation can identify leaks in their early stages, providing early warnings to prevent significant material loss and ensure the accuracy of concrete mix proportions. The airbag's fit against the tank wall can also help seal minor leaks, reducing safety hazards and maintenance costs. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is an enlarged cross-sectional structural diagram of the top cover in this utility model; Figure 3 This is the utility model Figure 2 A magnified view of the structure at point A in the middle; Figure 4 This is a cross-sectional enlarged structural schematic diagram of the annular airbag in this utility model; Figure 5 This is the utility model Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0013] In the diagram: 1. Mixing tank body; 11. Support frame; 12. Telescopic frame; 13. Drive unit; 2. Top cover; 21. Inner circular groove; 22. Sealing ring; 3. Annular airbag; 31. Air pressure sensor; 32. Vent hole; 33. Annular clearance groove; 34. Annular protective shell; 35. Audible and visual alarm; 4. Air pump; 41. L-shaped vent pipe; 42. Piston pipe; 421. Exhaust port; 43. Limiting ring; 44. Return spring. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5 An easily detectable cement mixing tank includes a mixing tank body 1, a support frame 11 and a top cover 2. Several annular airbags 3 are installed on the outside of the mixing tank body 1, and an air pump 4 is installed on the top of the top cover 2.

[0016] Among them, the annular airbag 3 is installed at the weld seam of the cylinder wall of the mixing tank body 1. Each of the several annular airbags 3 is equipped with a pressure sensor 31 to detect its own internal air pressure. Several ventilation holes 32 are opened on the inner side of the annular airbag 3, and the ventilation holes 32 correspond to the position of the weld seam of the cylinder wall of the mixing tank body 1.

[0017] It should be noted that when gas leaks from the inside of the mixing tank body 1 as described in this embodiment, it enters the annular air bladder 3 through the vent 32, changing the air pressure inside the annular air bladder 3.

[0018] An L-shaped vent pipe 41 is installed at the output end of the air pump 4. A piston pipe 42 is slidably connected to the inner wall of the L-shaped vent pipe 41. An exhaust hole 421 is opened on the side wall of the piston pipe 42. When the piston pipe 42 drives the exhaust hole 421 to descend into the interior of the mixing tank body 1, it delivers air.

[0019] It should be noted that the piston tube 42 described in this embodiment has a cavity inside, and the bottom of the piston tube 42 is closed. In the non-detection state, the bottom of the piston tube 42 is flush with the bottom of the top cover 2.

[0020] Specifically, in non-detection mode, the bottom of the piston tube 42 remains flush with the bottom of the top cover 2, and will not interfere with the material mixing process inside the mixing tank body 1. When weld leak detection is required, the air pump 4 installed on the top of the top cover 2 is activated, and the piston tube 42 slides downward along the inner wall of the L-shaped vent pipe 41, causing the exhaust hole 421 on its side wall to descend into the mixing tank body 1. At this time, the gas generated by the air pump 4 is delivered into the mixing tank body 1 through the L-shaped vent pipe 41 and the piston tube 42, creating a high-pressure state inside the mixing tank body 1. At that time, since the ventilation holes 32 on the inner side of the annular airbag 3 correspond one-to-one with the weld seams of the mixing tank body 1, if there is a leak in a certain weld seam of the mixing tank body 1, the high-pressure gas in the mixing tank body 1 will enter the annular airbag 3 through the ventilation holes 32, causing abnormal changes in the air pressure inside the annular airbag 3. The air pressure sensor 31 installed on the annular airbag 3 can detect this air pressure change in real time. When the air pressure value exceeds the preset normal threshold range, it can be accurately determined that there is a leak in the weld seam at the corresponding position of the annular airbag 3.

[0021] In one embodiment of this utility model, such as Figures 1-5 As shown, telescopic frames 12 are installed on both sides of the mixing tank body 1. Both telescopic frames 12 are installed on the side wall of the top cover 2. One of the telescopic frames 12 has a drive unit 13 installed on one side to adjust the angle of the top cover 2.

[0022] It should be noted that the drive unit 13 described in this embodiment is a drive motor, and the top cover 2 can be flipped for easy maintenance.

[0023] Specifically, the telescopic frames 12 on both sides of the mixing tank body 1 are connected to the side walls of the tank body and the top cover 2, respectively, providing movable support for the top cover 2. When maintenance is required, the drive motor of the drive unit 13 is started, driving one of the telescopic frames 12 to operate. The angle of the top cover 2 is adjusted through the telescopic linkage of the telescopic frame 12, so that the top cover 2 can be flipped from the closed state of the mixing tank body 1 to the open state, thereby exposing the internal structure of the mixing tank for maintenance. After maintenance is completed, the drive unit 13 runs in reverse, driving the telescopic frame 12 to reset, so that the top cover 2 re-closes the mixing tank body 1.

[0024] In one embodiment of this utility model, such as Figures 1-5 As shown, a sealing ring 22 is installed at the bottom of the top cover 2. The sealing ring 22 is inserted into the inner side of the top of the mixing tank body 1 to increase the sealing performance.

[0025] Specifically, when the top cover 2 is in the closed state of the mixing tank body 1, the sealing ring 22 forms an interlocking fit with the inner side of the top of the mixing tank body 1, that is, the sealing ring 22 is embedded in the inner gap of the top of the mixing tank body 1. Through the tight contact between the sealing ring 22 and the inner side of the top of the tank body, the gap between the top cover 2 and the mixing tank body 1 is filled, blocking the channel for gas or material to leak from the connection between the two, thereby enhancing the sealing performance between the top cover 2 and the mixing tank body 1. This ensures that when the mixing tank body 1 is pressurized for testing or during normal mixing operations, gas, dust and materials will not overflow from the connection between the top cover and the tank body, ensuring the accuracy of the test and the sealing of the mixing process.

[0026] In one embodiment of this utility model, such as Figures 1-5 As shown, an annular relief groove 33 is provided on the inner side of the annular airbag 3. The annular relief groove 33 makes way for the weld of the cylinder wall of the mixing tank body 1. The annular relief groove 33 corresponds to the position of the vent 32.

[0027] It should be noted that the annular relief groove 33 described in this embodiment facilitates the delivery of leaked gas to the nearby vent 32.

[0028] Specifically, when the annular airbag 3 is installed on the outside of the mixing tank body 1, the annular clearance groove 33 forms a clearance space for the weld, so that the weld is located in the groove. At the same time, the annular clearance groove 33 corresponds to the position of the vent hole 32 on the annular airbag 3. When the weld of the mixing tank body 1 wall leaks, the leaked gas first enters the annular clearance groove 33. Due to the accumulation and guiding effect of the groove on the gas, the leaked gas can be delivered to the vent hole 32, which is closer, more quickly and in a more concentrated manner. This allows the gas to enter the interior of the annular airbag 3 efficiently, accelerates the change in air pressure inside the annular airbag 3, and ensures that the pressure sensor 31 can detect the leak more sensitively and in a more timely manner, thereby improving the response speed and accuracy of weld leak detection.

[0029] In one embodiment of this utility model, such as Figures 1-5 As shown, an annular protective shell 34 is provided on the outside of the annular airbag 3. The annular protective shell 34 is installed on the outside of the mixing tank body 1. An audible and visual alarm 35, which is electrically connected to the air pressure sensor 31, is provided on the outside of the mixing tank body 1.

[0030] It should be noted that the annular protective housing 34 described in this embodiment encloses the annular airbag 3 inside, and the main body of the air pressure sensor 31 is mounted on the annular protective housing 34.

[0031] Specifically, the annular protective shell 34 can isolate the annular airbag 3 from external environmental interference such as collisions and friction, protect the airbag and pressure sensor 31 from external damage, and ensure the stability of the airbag detection function. When the pressure sensor 31 detects an abnormal change in the air pressure inside the annular airbag 3 due to weld leakage, since the pressure sensor 31 is electrically connected to the audible and visual alarm 35 on the outside of the mixing tank body 1, it will immediately trigger the audible and visual alarm 35 to start, and alarm simultaneously through sound and light signals, quickly alerting the staff that there is a leakage problem at the corresponding weld location, and realizing a visual early warning of leakage.

[0032] In one embodiment of this utility model, such as Figures 1-5 As shown, an inner circular groove 21 is provided inside the top cover 2, and a limit ring 43 is installed on the side wall of the piston tube 42. The limit ring 43 is slidably connected to the inner wall of the inner circular groove 21, and a reset spring 44 is provided at the bottom of the limit ring 43. The reset spring 44 is sleeved on the outside of the piston tube 42.

[0033] It should be noted that the reset spring 44 described in this embodiment pushes the piston tube 42 upward to reset via the limiting ring 43.

[0034] Specifically, during testing, the air pump 4 drives the piston tube 42 to slide downwards, causing the limiting ring 43 to move down along the inner circular groove 21 and compress the reset spring 44, so that the exhaust port 421 of the piston tube 42 enters the mixing tank body 1 to achieve air filling; after the test is completed, the air pump 4 stops driving, the reset spring 44 releases elastic potential energy, and pushes the piston tube 42 to slide upwards through the limiting ring 43 until the limiting ring 43 contacts the top of the inner circular groove 21 for limitation. At this time, the bottom of the piston tube 42 is reset to be flush with the bottom of the top cover 2, completing the reset of the non-test state. The cooperation between the inner circular groove 21 and the limiting ring 43 ensures the stability of the piston tube 42 sliding process and avoids displacement that affects the air supply accuracy.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] Working Principle: This easily detectable cement mixing tank achieves weld leakage monitoring through "air pressure boosting detection + airbag induction early warning". In non-detection state, the bottom of the piston tube 42 is flush with the top cover 2, without interfering with mixing. During detection, the air pump 4 drives the piston tube 42 to move downward, and the exhaust port 421 enters the mixing tank body 1 to pressurize it. If there is a leak in a weld on the wall of the mixing tank body 1, the high-pressure gas in the tank enters the annular airbag 3 at the corresponding weld through the vent 32. After the air pressure sensor 31 detects the abnormal air pressure, it triggers the audible and visual alarm 35 to warn. The annular clearance groove 33 gathers and guides the leaking gas, improving the detection sensitivity. The annular protective shell 34 protects the airbag and sensor from damage. The top cover 2 can be flipped for maintenance through the telescopic frame 12 and the drive unit 13. The sealing ring 22 enhances the sealing performance of the top cover. The piston tube 42 automatically resets after detection with the help of the limit ring 43, the return spring 44 and the inner circular groove 21, ensuring stability in non-detection state.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An easily inspectable cement mixing tank, comprising a mixing tank body (1), a support frame (11), and a top cover (2), characterized in that, The mixing tank body (1) is equipped with several annular airbags (3) on its outer side, and the top cover (2) is equipped with an air pump (4). The annular airbag (3) is installed at the weld seam of the cylinder wall of the mixing tank body (1). Each of the several annular airbags (3) is equipped with a pressure sensor (31) for detecting its internal air pressure. Several ventilation holes (32) are opened on the inner side of the annular airbag (3). The ventilation holes (32) correspond to the position of the weld seam of the cylinder wall of the mixing tank body (1). The air pump (4) is equipped with an L-shaped vent pipe (41) at its output end. A piston pipe (42) is slidably connected to the inner wall of the L-shaped vent pipe (41). An exhaust hole (421) is opened on the side wall of the piston pipe (42). When the piston pipe (42) drives the exhaust hole (421) to descend into the interior of the mixing tank body (1), it delivers air.

2. The easily detectable cement mixing tank according to claim 1, characterized in that, Telescopic frames (12) are installed on both sides of the mixing tank body (1). Both telescopic frames (12) are installed on the side wall of the top cover (2). One of the telescopic frames (12) has a drive unit (13) for adjusting the angle of the top cover (2) installed on one side.

3. The easily detectable cement mixing tank according to claim 1, characterized in that, A sealing ring (22) is installed at the bottom of the top cover (2). The sealing ring (22) is inserted into the inner side of the top of the mixing tank body (1) to increase the sealing performance.

4. The easily detectable cement mixing tank according to claim 1, characterized in that, The annular airbag (3) has an annular relief groove (33) on its inner side. The annular relief groove (33) makes way for the weld of the cylinder wall of the mixing tank body (1). The annular relief groove (33) corresponds to the position of the vent (32).

5. A cement mixing tank that is easy to detect according to claim 1, characterized in that, An annular protective shell (34) is provided on the outside of the annular airbag (3). The annular protective shell (34) is installed on the outside of the mixing tank body (1). An audible and visual alarm (35) electrically connected to the air pressure sensor (31) is provided on the outside of the mixing tank body (1).

6. The easily detectable cement mixing tank according to claim 1, characterized in that, The top cover (2) has an inner circular groove (21) inside. A limiting ring (43) is installed on the side wall of the piston tube (42). The limiting ring (43) is slidably connected to the inner wall of the inner circular groove (21). A reset spring (44) is provided at the bottom of the limiting ring (43). The reset spring (44) is sleeved on the outside of the piston tube (42).

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