Pressure tank and equipment for airtight repair of metal plastic structural parts

Abstract

The utility model discloses a pressure tank and equipment for carrying out airtight repair to metal plastic structure spare. Pressure tank includes pressure tank main part and top cover part, and the top cover part includes cover body, flap mechanism and closing mechanism, and the cover body is welded in the top of pressure tank main part, and one end of flap mechanism is connected closing mechanism, and the other end of flap mechanism is hinged in the outside wall of cover body, and the inside circumference edge of cover body is equipped with a plurality of recess, and the outside circumference edge of closing mechanism is equipped with a plurality of bosses rotatable cooperation with a plurality of recess. Through the hinge type flap structure hinged in the outside of cover body, when needing to open the cover, do not need to completely dismount the cover, is suitable for the frequent operation of a plurality of vacuum pressure tanks, and the boss of closing mechanism and the recess of cover body are uniformly pressed through the buckle, and the elastic sealing ring is combined to prevent gas leakage, and the hinge provides quick opening and closing, and the flange ensures the high sealing property when closing, solves the contradiction of convenience and reliability.

Description

Technical Field

[0001] This utility model relates to the field of airtight repair technology, and in particular to a pressure tank and equipment for airtight repair of metal-plastic structural parts. Background Technology

[0002] In the consumer electronics sector, tiny gaps often exist at the metal-plastic joints of metal-plastic structural components such as aluminum alloy and titanium alloy metal frames and metal decorative parts, requiring repair. Traditional repair methods utilize small and large pressure vessels, corresponding to manual and electric operation respectively.

[0003] Small pressure tanks have the following drawbacks: inconvenient operation; for example, the lid of an 80L stainless steel pressure tank weighs approximately 12KG-15KG, making operation quite strenuous; wasted time; the total time for tightening and loosening the lifting rings is 8-10 minutes, which is time-consuming and makes it impossible to guarantee the consistency of the tightness of each lifting ring; complex operation; for multi-process production, the operational requirements for employees are high, and this high-intensity production method will greatly reduce employee efficiency and pose safety hazards; sealing problems; the tank body locked by the lifting rings is in contact with the sealing ring, and long-term use will cause the sealing ring to leak air, requiring deep cleaning before use, which increases the difficulty of operation.

[0004] Large pressure tanks have the following drawbacks: High cost: The cost of pressure tanks larger than 500L and their traveling systems is much higher than that of small tanks, making them too expensive; Single process: Large pressure tanks can only be used for products with the same process parameters and cannot handle multiple types of products at the same time, resulting in poor flexibility; Difficult cleaning: Adhesive replacement and tank cleaning are relatively complicated, increasing workload; Insufficient production capacity: When production capacity is insufficient, the cost of re-adhesive application for a single product is high, causing unnecessary waste.

[0005] In summary, existing small and large pressure tanks have many limitations in terms of production efficiency, cost, and ease of operation, and cannot meet the needs of mass production. Therefore, a new solution is needed to improve production efficiency and reduce costs. Utility Model Content

[0006] The main objective of this invention is to provide a pressure tank for airtight repair of metal-plastic structural parts.

[0007] To achieve the above objectives, this utility model provides a pressure tank for airtight repair of metal-plastic structural parts, comprising a pressure tank body and a top cover. The top cover includes a cover body, a flip-top mechanism, and a closing mechanism. The cover body is welded to the top of the pressure tank body. One end of the flip-top mechanism is connected to the closing mechanism, and the other end of the flip-top mechanism is hinged to the outer side wall of the cover body. The inner circumferential edge of the cover body has multiple grooves, and the outer circumferential edge of the closing mechanism has multiple bosses that rotatably engage with the multiple grooves.

[0008] In the pressure vessel provided by this utility model for airtight repair of metal-plastic structural parts, the flip-top mechanism includes a crossbeam, a flip-top handle, and a rotating hinge. The lower surface of the crossbeam is connected to the upper surface of the closing mechanism. The flip-top handle is installed at the first end of the crossbeam, the first end of the rotating hinge is installed at the second end of the crossbeam, and the second end of the rotating hinge is connected to the outer wall of the cover body.

[0009] In the pressure tank for airtight repair of metal-plastic structural parts provided by this utility model, the flip-top mechanism further includes a limiting device disposed inside the rotating hinge.

[0010] In the pressure tank for airtight repair of metal-plastic structural parts provided by this utility model, the lid closing mechanism includes a flange and a lid closing handle. The lid closing handle is fixed to the upper surface of the flange, and the plurality of bosses are formed on the outer circumferential edge of the flange.

[0011] In the pressure vessel provided by this utility model for airtight repair of metal-plastic structural parts, the top cover also includes a groove-shaped photoelectric sensor installed on the inner circumferential edge of the cover body.

[0012] In the pressure tank for airtight repair of metal-plastic structural parts provided by this utility model, the main body of the pressure tank includes a tank body, a fixed base, an vent valve, positive and negative pressure gauges, and an air inlet valve. The fixed base is installed on the outer side wall of the bottom end of the tank body, the cover body is welded to the top end of the tank body, and the vent valve, the positive and negative pressure gauges, and the air inlet valve are respectively welded to the outer side wall of the top end of the tank body.

[0013] In the pressure tank for airtight repair of metal-plastic structural parts provided by this utility model, the main body of the pressure tank also includes a safety valve, which is welded to the outer wall of the top of the tank body.

[0014] In the pressure tank for airtight repair of metal-plastic structural parts provided by this utility model, the main body of the pressure tank also includes a drain valve, which is installed at the bottom of the tank body.

[0015] According to another aspect of the present invention, an apparatus for airtight repair of metal-plastic structural parts is also provided, comprising a plurality of pressure tanks, a support base, a control system, a vacuum pump and an air compressor as described above for airtight repair of metal-plastic structural parts, wherein the pressure tanks are fixed on the support base, and each pressure tank is electrically connected to the control system, the vacuum pump and the air compressor respectively.

[0016] The pressure vessel provided by this utility model for airtight repair of metal-plastic structural parts has the following advantages: The hinged flip-top structure, hinged to the outside of the cover body, allows for quick opening and closing without completely disassembling the cover when needed. This is suitable for frequent operation of multiple vacuum pressure vessels, avoids the cover occupying surrounding space, and is suitable for compact environments. The closing mechanism uses a boss and a groove in the cover body to apply pressure evenly through a snap-fit, combined with an elastic sealing ring to prevent gas leakage. The hinge provides quick opening and closing, while the flange ensures high sealing performance when closed; these two complementary features resolve the contradiction between convenience and reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 The diagram shown is a structural diagram of a pressure tank for airtight repair of metal-plastic structural parts according to an embodiment of the present invention, wherein the pressure tank is in a closed state.

[0019] Figure 2 The diagram shown is a structural diagram of a pressure tank for airtight repair of metal-plastic structural parts according to an embodiment of the present invention, wherein the pressure tank is in an open state.

[0020] Figure 3 The diagram shown is a structural schematic of a device for airtight repair of metal-plastic structural parts according to an embodiment of the present invention. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate typical embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0023] Figure 1 The diagram shown is a structural diagram of a pressure tank for airtight repair of metal-plastic structural parts according to an embodiment of the present invention, wherein the pressure tank is in a closed state. Figure 2 The diagram shown is a structural diagram of a pressure vessel for airtight repair of metal-plastic structural parts according to an embodiment of the present invention, wherein the pressure vessel is in an open state. Figure 1 and Figure 2 As shown, the pressure tank for airtight repair of metal-plastic structural parts provided by this utility model includes a pressure tank body 100 and a top cover part composed of a cover body 210, a flip-top mechanism 220, and a closing mechanism 230. The cover body 210 is welded to the top of the pressure tank body 100. One end of the flip-top mechanism 220 is connected to the closing mechanism 230, and the other end of the flip-top mechanism 220 is hinged to the outer side wall of the cover body 210. The inner circumferential edge of the cover body 210 has multiple grooves 2101, and the outer circumferential edge of the closing mechanism 230 has multiple bosses 2301 that rotatably engage with the multiple grooves 2101.

[0024] Pressure vessels often require frequent opening and closing for repairs or maintenance. Traditional designs often require complete disassembly of the lid, which can be time-consuming and inconvenient, especially in environments requiring frequent operation. This invention utilizes a hinged flip-top mechanism, allowing the lid to open like a book without complete disassembly. During use, the operator only needs to flip the lid, saving time and improving work efficiency. The hinged flip-top mechanism does not occupy additional space, making it ideal for use in space-constrained environments. Its ease of operation reduces common errors such as accidental omissions or improper lid closing. Simultaneously, the outer circumference of the lid-closing mechanism features multiple protrusions that match various grooves on the lid body, forming a snap-fit ​​engagement. This engagement method applies pressure evenly, ensuring a tight seal between the lid and the main body.

[0025] Specifically, in one embodiment of this utility model, the flip-top mechanism 220 includes a crossbeam 2201, a flip-top handle 2202, and a rotating hinge 2203. The lower surface of the crossbeam 2201 is connected to the upper surface of the closing mechanism 230. The flip-top handle 2202 is installed at the first end of the crossbeam 2201, and the first end of the rotating hinge 2203 is installed at the second end of the crossbeam 2201. The second end of the rotating hinge 2203 is connected to the outer wall of the cover body 210. In this embodiment, the lower surface of the crossbeam is connected to the upper surface of the closing mechanism 230, which ensures that the cover is evenly stressed, avoids imbalance during flipping, and thus ensures smooth opening and closing of the cover and prevents damage. The flip-top handle is located at the first end of the crossbeam 2201, which facilitates manual flipping operation by the user. The flip-top handle makes operation simple, requires no additional tools, and greatly improves efficiency. The rotating hinge supports the rotational movement between the cover body and the flip-top structure. One end of the hinge is fixed to the second end of the crossbeam, and the other end is fixed to the outer wall of the lid body. By rotating the hinge, the lid can be smoothly flipped and can withstand repeated movements during opening and closing, ensuring durability.

[0026] Furthermore, in one embodiment of this utility model, the flip-top mechanism 220 further includes a limiting device disposed inside the rotating hinge 2203. The limiting device, installed inside the rotating hinge 2203, limits the opening angle of the lid, ensuring that the lid can only be opened to a fixed angle, avoiding problems such as excessive opening or uneven force distribution. For example, according to the design, the limiting device ensures that the lid opens to a 107° angle, guaranteeing both ease of operation and preventing uneven force distribution on the hinge or loosening of the lid due to excessive opening. Simultaneously, the limiting device also prevents the lid from tilting excessively during opening or from being damaged due to improper operation, providing additional safety assurance.

[0027] Specifically, in one embodiment of this utility model, the lid-closing mechanism 230 includes a flange 2302 and a lid-closing handle 2303. The lid-closing handle 2303 is fixed to the upper surface of the flange 2302, and a plurality of bosses 2301 are formed on the outer circumferential edge of the flange 2302. The flange is located above the lid body 210 and is responsible for providing fixation and support when the lid is closed. The flange is typically designed of metal or wear-resistant material to withstand greater pressure and rotational torque. The plurality of bosses are located on the outer circumferential edge of the flange to prevent the lid from sliding or loosening during rotation. The boss design increases the contact area between the flange and the lid body, providing additional stability. The lid-closing handle 2303 is installed on the upper surface of the flange 2302, and the operator can lock and unlock the lid by rotating the handle clockwise or counterclockwise. Through this rotational action, the lid-closing mechanism can achieve rapid locking and unlocking. When operating the lid-closing mechanism, the employee will lock the lid by rotating the flange clockwise with both hands using the handle 2303. Rotating clockwise tightens the connection between the flange and the cover body, achieving a seal. To unlock, the cover can be easily opened by rotating the flange counterclockwise.

[0028] Specifically, in one embodiment of this utility model, the top cover 200 further includes a slotted photoelectric sensor installed on the inner circumferential edge of the cover body 210. The photoelectric sensor's function is to ensure the cover is fully locked or fully unlocked by determining whether the cover has been rotated to the correct position. The slotted photoelectric sensor senses the cover's position by emitting and receiving light beams. When the cover rotates clockwise to a designated position, the sensor detects a change in the light beam, confirming whether the cover is locked in place. If the cover has not rotated to the preset position, the sensor will not receive the expected light beam reflection, and the operator can adjust the rotation based on the sensor feedback. The slotted photoelectric sensor allows the operator to monitor whether the cover is fully locked in real time, improving work efficiency and avoiding safety hazards or airtightness issues caused by the cover not being fully closed.

[0029] Specifically, in one embodiment of this utility model, the main body 100 of the pressure tank includes a tank body 110, a fixed base 120, an vent valve 130, positive and negative pressure gauges 140, an inlet valve 150, a safety valve 160, and a drain valve 170. The fixed base 120 is installed on the outer side wall of the bottom end of the tank body 110. The cover body 210 is welded to the top end of the tank body 110. The vent valve 130, the positive and negative pressure gauges 140, the inlet valve 150, and the safety valve 160 are respectively welded to the outer side wall of the top end of the tank body 110. The drain valve 170 is installed at the bottom of the tank body 110. The tank body is the main part of the pressure tank, responsible for containing and carrying the gas or liquid inside. The tank body needs to have sufficient strength to withstand the internal gas pressure and is usually made of metal materials with good pressure resistance. The fixed base is installed on the outer side wall of the bottom end of the tank body 110 and is mainly used to fix the entire pressure tank on a frame. This fixed structure ensures the stability of the pressure tank during operation, preventing instability caused by vibration or other external forces. The vent valve is a crucial safety device, primarily used to balance the pressure difference between the tank and the external atmosphere before switching between positive and negative pressure and opening the lid. The vent valve handle must engage with a contact switch before proceeding to the next step; this design increases the safety margin, preventing accidental opening of the lid or operation when pressure is unbalanced, thus enhancing safety. Pressure gauges display the real-time pressure status inside the tank. Positive and negative pressure gauges accurately indicate whether the tank pressure is within the normal range. These gauges can also be used in automated control systems, combined with intelligent devices for monitoring, preventing pressure from exceeding safe limits and improving safety. The system can automatically alarm or stop operation when pressure is abnormal, further ensuring operator safety. There are two inlet valves, one for connecting to an air compressor to provide positive pressure and the other for connecting to a vacuum pump to provide negative pressure. Through these inlet valves, operators can adjust the tank pressure as needed to achieve the required operating conditions. A safety valve prevents the tank pressure from exceeding the set safety range. When the pressure inside the tank becomes too high, the safety valve will automatically open to release excess gas, preventing damage or explosion of the tank due to overpressure. This design ensures automatic protection of the tank in abnormal situations, avoiding potential safety hazards. The drain valve is used to empty the adhesive or other liquid substances from the tank, facilitating cleaning and maintenance. After prolonged use, residues may accumulate inside the tank; using the drain valve effectively removes these residues, preventing them from affecting the normal operation of the equipment.

[0030] The design of this pressure tank fully considers operational safety, flexibility, and ease of maintenance. Through the rational configuration of various valves, sensors, and an automated control system, the intelligence and safety of operation are enhanced. The integration of key components such as the vent valve, positive and negative pressure gauges, safety valve, and inlet valve allows the pressure tank to operate stably under various working conditions, preventing accidents caused by improper operation.

[0031] Figure 3 The diagram shown is a structural schematic of a device for airtight repair of metal-plastic structural parts according to an embodiment of this utility model. Figure 3 As shown, the device provided by this utility model for airtight repair of metal-plastic structural parts includes... Figure 1 and Figure 2 The system comprises a pressure tank 1, a support base 2, a control system 3, a vacuum pump (not shown in the figure), and an air compressor (not shown in the figure) for airtight repair of metal-plastic structural parts. The pressure tanks are fixed to the support base, and each pressure tank is electrically connected to the control system, the vacuum pump, and the air compressor. The support base is made of 50mm x 50mm galvanized square tubing with a thickness of 4mm. The entire base measures 2050mm x 1510mm. Each square frame of the support base has threaded holes around its perimeter for fixing the pressure tanks, and a 610mm wide maintenance channel in the center for placing the pressure tank lid. After the pressure tanks are fixed to the base, their positions can be moved and adjusted using a standard forklift, resulting in higher handling efficiency and convenience compared to handling a single pressure tank. The automated control system allows for precise operation of each pressure tank, enabling individual adjustment of different process parameters for different products, providing greater flexibility and efficiency.

[0032] Specifically, in one embodiment of this utility model, electrical control is mainly achieved through a PLC control system for automatic control. The vacuum and compressed gas pipelines of each pressure tank are independent, and solenoid valves are used to switch and close the pipelines. The host computer can set process parameters for each tank individually and can monitor the production parameters of each tank in real time. The specific operation is as follows:

[0033] 1. Set the vacuum level and vacuum holding time;

[0034] 2. Set the positive pressure value and holding time;

[0035] 3. Click the "Start Production" button. The PLC will open the vacuum pipeline solenoid valve and the vacuum pump to evacuate to the set value.

[0036] 4. Turn off the solenoid valve and vacuum pump, and start the pressure holding timer;

[0037] 5. Once the vacuum holding time is reached, the PLC controls the vent valve to release air.

[0038] 6. After releasing to normal pressure, the PLC closes the vent valve;

[0039] 7. The PLC opens the positive pressure pipeline solenoid valve, and the PLC starts the air compressor to pressurize the air to the set value.

[0040] 8. The PLC shuts down the air compressor and solenoid valve, and starts timing to maintain positive pressure;

[0041] 9. When the pressure holding time is reached, the PLC activates the vent valve to release pressure, and the corresponding tank's control panel is locked.

[0042] 10. With the vent valve closed, manually open the vent valve and unlock the control panel.

[0043] In this embodiment, an automated control system (such as a PLC control system) allows for precise adjustment of each tank, ensuring that the process requirements of different products are met. Specifically, the process parameters of each pressure tank can be set individually, such as vacuum level, positive pressure, and holding time. This flexibility allows the equipment to adapt to the repair needs of different materials and products. For diverse products on the production line, it avoids the limitations of uniform standards. The host computer can monitor the production parameters of each tank in real time, and can quickly adjust the operation once an anomaly is detected to prevent products from failing to meet standards. This refined control method can greatly reduce the risk caused by human error. Automated operation greatly improves production efficiency, reduces the time for manual intervention, and avoids repeated corrections due to human factors. Each tank can operate independently, and the operation of multiple tanks does not interfere with each other; such parallel operation greatly improves production capacity. By precisely controlling the operating time and pressure value of each tank, resources can be used more efficiently, avoiding over-operation or waste, thereby reducing production costs. When the control system detects an anomaly, it can promptly alarm and prompt the operator to perform maintenance or adjustment. The automated control system can also record production data, helping engineers analyze the causes of failures and make timely repairs, reducing downtime.

[0044] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0045] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, the inventive aspect lies in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0046] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.

[0047] It should be noted that the above embodiments are illustrative of the present invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

Claims

1. A pressure tank for airtight repair of metal-plastic structural parts, characterized in that, The pressure tank includes a main body (100) and a top cover. The top cover includes a cover body (210), a flip-top mechanism (220), and a closing mechanism (230). The cover body (210) is welded to the top of the main body (100). One end of the flip-top mechanism (220) is connected to the closing mechanism (230), and the other end of the flip-top mechanism (220) is hinged to the outer side wall of the cover body (210). The inner circumferential edge of the cover body (210) is provided with a plurality of grooves (2101), and the outer circumferential edge of the closing mechanism (230) is provided with a plurality of bosses (2301) that can rotatably engage with the plurality of grooves (2101).

2. The pressure vessel for airtight repair of metal-plastic structural parts as described in claim 1, characterized in that, The flip-top mechanism (220) includes a crossbeam (2201), a flip-top handle (2202), and a rotating hinge (2203). The lower surface of the crossbeam (2201) is connected to the upper surface of the closing mechanism (230). The flip-top handle (2202) is installed at the first end of the crossbeam (2201). The first end of the rotating hinge (2203) is installed at the second end of the crossbeam (2201). The second end of the rotating hinge (2203) is connected to the outer wall of the cover body (210).

3. The pressure vessel for airtight repair of metal-plastic structural parts as described in claim 2, characterized in that, The flip mechanism (220) also includes a limiting device disposed inside the rotating hinge (2203).

4. The pressure vessel for airtight repair of metal-plastic structural parts as described in claim 2, characterized in that, The closing mechanism (230) includes a flange (2302) and a closing handle (2303), the closing handle (2303) being fixed to the upper surface of the flange (2302), and the plurality of bosses (2301) being formed on the outer circumferential edge of the flange (2302).

5. The pressure vessel for airtight repair of metal-plastic structural parts as described in claim 1, characterized in that, The top cover (200) also includes a slotted photoelectric sensor installed on the inner circumferential edge of the cover body (210).

6. The pressure vessel for airtight repair of metal-plastic structural parts as described in claim 1, characterized in that, The main body (100) of the pressure tank includes a tank body (110), a fixed base (120), an vent valve (130), positive and negative pressure gauges (140), and an air inlet valve (150). The fixed base (120) is installed on the outer side wall at the bottom of the tank body (110). The cover body (210) is welded to the top of the tank body (110). The vent valve (130), the positive and negative pressure gauges (140), and the air inlet valve (150) are respectively welded to the outer side wall at the top of the tank body (110).

7. The pressure vessel for airtight repair of metal-plastic structural parts as described in claim 6, characterized in that, The pressure tank body (100) also includes a safety valve (160), which is welded to the outer side wall at the top of the tank body (110).

8. The pressure vessel for airtight repair of metal-plastic structural parts as described in claim 6, characterized in that, The main body (100) of the pressure tank also includes a drain valve (170), which is installed at the bottom of the tank body (110).

9. A device for airtight repair of metal-plastic structural components, characterized in that, The system includes a plurality of pressure tanks, a support base, a control system, a vacuum pump, and an air compressor for airtight repair of metal-plastic structural components as described in any one of claims 1-8, wherein the pressure tanks are fixed on the support base, and each pressure tank is electrically connected to the control system, the vacuum pump, and the air compressor.

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