Sealing cover device for spraying material tank and spraying material tank

Abstract

The utility model discloses a sealing cover device for a spraying paint tank and the spraying paint tank, and relates to the field of paint tanks, the sealing cover device comprises two cross beams, two cross beam limiting devices, a screw rod and a pressure adjusting device, each cross beam limiting device is fixedly connected to a feed port of a tank body, the cross beam limiting devices are arranged on the outer side of a sealing cover body, and the screw rod is arranged on the outer side of the sealing cover body. The cross beam limiting device is provided with a limiting groove; the cross beam is arranged on the sealing cover body, and the two ends of the cross beam extend into the two limiting grooves correspondingly. The lead screw is in threaded connection with the cross beam, the limiting groove can limit rotation of the cross beam around the axis of the lead screw and limit movement of the cross beam in the direction away from the sealing cover body, the lead screw rotates along the axis of the lead screw to enable the cross beam to move along the axis of the lead screw, and the lead screw can abut against the side, away from the tank body, of the sealing cover body; and the pressure adjusting device is used for adjusting the pressure in the charging bucket. The spraying device can guarantee the spraying effect, prevents spraying paint from being wasted, does not pollute the environment, is high in equipment safety and low in use cost, and reduces the manual workload.

Description

Technical Field

[0001] This utility model relates to the field of material tank technology, and in particular to a sealing cap device for a paint spraying tank and a paint spraying tank. Background Technology

[0002] Current spray coating cans mainly consist of a canister and a sealing cap. During use, spray coating material is first added to the canister, then the sealing cap is aligned with the canister opening and tightened. Compressed air is then continuously supplied to the canister through the air inlet on the sealing cap. If the pressure inside the canister is too low, the spraying effect will be affected; if the pressure is too high, the following problems will occur: 1. Powdered spray coating material will clog the canister's outlet, affecting the spraying effect; 2. The sealing cap may burst, causing the canister to explode, wasting spray coating material and posing a safety hazard; 3. Powdered spray coating material may leak from between the sealing cap and the canister, resulting in wasted material and environmental pollution; 4. It may easily damage the ball valve at the outlet, leading to increased maintenance frequency, which in turn increases workload and operating costs. Therefore, it is necessary to ensure that the pressure inside the canister is maintained within the optimal working pressure range and avoid excessive pressure. For example, the optimal working air pressure for alumina powder spray coating canisters is approximately 4 MPa. Current paint cans lack pressure regulation. In actual use, the input of compressed air into the can can only be controlled by the operator's experience to maintain the balance between input and output and ensure the spraying effect. This places high demands on the operator, and the accuracy of judging the pressure inside the can can by manual experience is poor, which can easily lead to excessive pressure inside the can.

[0003] Currently, most paint cans use a locking mechanism to connect the canister and the sealing cap. However, the locking mechanism has limited engagement strength. When compressed air is introduced into the canister, the sealing cap is easily pushed up, causing paint to leak between the sealing cap and the canister, resulting in paint waste. Insufficient pressure inside the canister also affects the spraying effect. Damage to the sealing cap increases maintenance costs. Therefore, there is a need for a sealing cap device and a paint canister that can both regulate the pressure inside the canister and ensure its sealing performance. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing cap device for a spray paint can and a spray paint can to solve the problems existing in the prior art, which can ensure the spraying effect, reduce or avoid spray paint waste, prevent environmental pollution, improve equipment safety, reduce equipment failure rate, reduce equipment operating costs, and reduce the workload of manual maintenance and cleaning.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a sealing cap device for paint spraying cans, including a sealing cap body, a crossbeam, a crossbeam limiting device, a lead screw, and a pressure regulating device, wherein:

[0007] One side of the sealing cap body is used to connect to the feed inlet of the tank;

[0008] There are two beam limiting devices. Each beam limiting device is fixedly connected to one end of the feed inlet of the tank body. Both beam limiting devices are located on the outside of the sealing cover body. Each beam limiting device is provided with a limiting groove.

[0009] The crossbeam is located on the other side of the sealing cover body, and both ends of the crossbeam can extend into the two limiting grooves respectively;

[0010] The lead screw is threadedly connected to the crossbeam. The limiting groove can restrict the rotation of the crossbeam around the axis of the lead screw. The limiting groove can restrict the movement of the crossbeam away from the sealing cap body. The lead screw can cause the crossbeam to move in the limiting groove along the axis of the lead screw by rotating along the axis of the lead screw. The lead screw can abut against the side of the sealing cap body away from the tank body.

[0011] The pressure regulating device is connected to the sealing cover body and is used to regulate the pressure inside the tank.

[0012] Preferably, the pressure regulating device is a safety valve.

[0013] Preferably, the sealing cover body includes a cover body and a sealing ring, and the sealing ring is fixedly connected to the side of the cover body away from the crossbeam.

[0014] Preferably, the limiting groove includes a transverse limiting surface and two longitudinal limiting surfaces. The two ends of the transverse limiting surface are respectively connected to the edges of the two longitudinal limiting surfaces away from the tank body. Each longitudinal limiting surface can limit the rotation of the crossbeam around the screw axis by contacting the crossbeam. The transverse limiting surface can limit the movement of the crossbeam away from the sealing cap body by contacting the crossbeam.

[0015] Preferably, it further includes a driving component connected to the lead screw, the driving component being able to drive the lead screw to rotate around the axis of the lead screw by rotating around the axis of the lead screw.

[0016] Preferably, the driving component is a handle, and the handle is fixedly connected to the lead screw.

[0017] Preferably, the sealing cover body is provided with an air inlet.

[0018] Preferably, it also includes at least one handle, each of the handles being fixedly connected to the side of the sealing cap body away from the can body.

[0019] This utility model provides a paint spraying can, including the can body and the sealing cap device for the paint spraying can, wherein the lead screw can abut against the side of the sealing cap body away from the can body to seal the sealing cap body to the can body.

[0020] Preferably, the tank body is provided with a discharge port.

[0021] The present invention achieves the following technical advantages over the prior art:

[0022] This utility model provides a sealing cap device for a paint spraying can and a paint spraying can, including a crossbeam, a crossbeam limiting device, a lead screw, and a pressure regulating device. There are two crossbeam limiting devices, each fixedly connected to one end of the can's inlet. Both crossbeam limiting devices are located on the outside of the sealing cap body, and each crossbeam limiting device has a limiting groove. The crossbeam is located on the other side of the sealing cap body, and both ends of the crossbeam can extend into the two limiting grooves respectively. The lead screw is threadedly connected to the crossbeam. The limiting grooves restrict the rotation of the crossbeam around the lead screw axis and restrict the crossbeam's movement away from the sealing cap body. By rotating the lead screw along its axis, the crossbeam can move within the limiting groove along the lead screw axis. The lead screw can abut against the side of the sealing cap body away from the can body. The pressure regulating device is connected to the sealing cap body and is used to regulate the pressure inside the can.

[0023] The pressure regulating device can adjust the pressure inside the material tank to ensure that the pressure does not exceed the set value, preventing excessive pressure inside the material tank, preventing the spray paint from clogging the outlet of the material tank, and ensuring the spraying effect; it can also prevent the sealing cap from bursting and causing the can to explode or the spray paint from seeping out between the sealing cap and the material tank, reducing or avoiding spray paint waste and improving equipment safety; it can also reduce the equipment failure rate, reduce equipment operating costs, and reduce the workload of manual maintenance and cleaning. Simultaneously, the lead screw, by rotating around its own axis, can drive the crossbeam to move along the axis of the lead screw within the limiting groove. When sealing is required, rotating the lead screw causes the crossbeam to move away from the sealing cap body until the crossbeam contacts the crossbeam limiting device, at which point the crossbeam can no longer move. At this point, the lead screw continues to rotate until it contacts the upper surface of the sealing cap body and presses the sealing cap body tightly onto the material tank, ensuring a tight seal between the sealing cap body and the material tank. This provides a good sealing effect, reduces or avoids paint leakage, prevents environmental pollution, and avoids paint waste. It also ensures the pressure inside the material tank, guaranteeing the spraying effect. When it is necessary to open the sealing cap body, rotating the lead screw in the opposite direction causes the crossbeam to move in the opposite direction, releasing the pressure of the lead screw on the sealing cap body. Then, one end of the crossbeam is removed from the corresponding limiting groove, and the other end is removed from the corresponding limiting groove, thus removing the obstruction of the crossbeam and lead screw on the sealing cap body, allowing the sealing cap body to be removed. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the paint spraying tank provided in Example 2;

[0026] Figure 2 This is a schematic diagram of the structure of the sealing cap body provided in Example 1;

[0027] Figure 3 This is a structural schematic diagram of the beam provided in Example 1;

[0028] Figure 4 This is a schematic diagram of the lead screw and handle provided in Example 1;

[0029] In the diagram: 100, sealing cap device for paint spraying tank; 200, paint spraying tank; 1, sealing cap body; 101, air inlet; 2, crossbeam; 3, crossbeam limiting device; 301, limiting groove; 302, lateral limiting surface; 303, longitudinal limiting surface; 4, lead screw; 5, pressure regulating device; 6, tank body; 601, discharge port; 7, handle; 8, handle. Detailed Implementation

[0030] 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.

[0031] The purpose of this utility model is to provide a sealing cap device for a spray paint can and a spray paint can to solve the problems existing in the prior art, which can ensure the spraying effect, reduce or avoid spray paint waste, prevent environmental pollution, improve equipment safety, reduce equipment failure rate, reduce equipment operating costs, and reduce the workload of manual maintenance and cleaning.

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] like Figures 1-4As shown, this embodiment provides a sealing cap device 100 for a paint spraying can, including a sealing cap body 1, a crossbeam 2, a crossbeam limiting device 3, a screw 4, and a pressure regulating device 5. One side of the sealing cap body 1 is used to connect to the inlet of the can 6; there are two crossbeam limiting devices 3, each fixedly connected to one end of the inlet of the can 6, both crossbeam limiting devices 3 are located on the outside of the sealing cap body 1, and each crossbeam limiting device 3 has a limiting groove 301; the crossbeam 2 is located on the other side of the sealing cap body 1, and the crossbeam 2... Both ends can extend into two limiting grooves 301 respectively; the lead screw 4 is threadedly connected to the crossbeam 2, and the limiting groove 301 can restrict the rotation of the crossbeam 2 around the axis of the lead screw 4. The limiting groove 301 can restrict the movement of the crossbeam 2 away from the sealing cover body 1. The lead screw 4 can rotate along its axis to allow the crossbeam 2 to move within the limiting groove 301 along the axis of the lead screw 4. The lead screw 4 can abut against the side of the sealing cover body 1 away from the tank body 6; the pressure regulating device 5 is connected to the sealing cover body 1 and is used to regulate the pressure inside the tank body 6. The pressure regulating device 5 can regulate the pressure inside the tank body 6 to ensure that the pressure inside the tank body 6 does not exceed the set value, preventing excessive pressure inside the tank body 6, preventing the spray paint from clogging the outlet 601 of the tank body 6, ensuring the spraying effect; preventing the sealing cover from bursting open and causing the tank to explode or preventing the spray paint from seeping out from between the sealing cover and the tank body 6, reducing or avoiding waste of spray paint, improving equipment safety; reducing equipment failure rate, reducing equipment operating costs, and reducing the workload of manual maintenance and cleaning. Meanwhile, the lead screw 4, by rotating around its own axis, can drive the crossbeam 2 to move along the axis of the lead screw 4 within the limiting groove 301. When sealing is required, rotating the lead screw causes the crossbeam 2 to move away from the sealing cover body 1 until the crossbeam 2 contacts the crossbeam limiting device 3, at which point the crossbeam 2 can no longer move. At this point, the lead screw 4 continues to rotate until it contacts the upper surface of the sealing cover body 1 and presses the sealing cover body 1 tightly onto the tank body 6, ensuring a tight seal between the sealing cover body 1 and the tank body 6. This provides a good sealing effect and can reduce or avoid the need for external coatings. It does not pollute the environment and prevents waste of spray paint; it can ensure the pressure inside the tank 6 and ensure the spraying effect; when it is necessary to open the sealing cover body 1, the screw 4 is rotated in the opposite direction to move the crossbeam 2 in the opposite direction, releasing the pressing effect of the screw 4 on the sealing cover body 1. Then, one end of the crossbeam 2 is taken out from the corresponding limiting groove 301, and the other end of the crossbeam 2 is taken out from the corresponding limiting groove 301, thus releasing the obstruction of the crossbeam 2 and screw 4 on the sealing cover body 1, so that the sealing cover body 1 can be removed. The operation is simple and convenient.

[0035] In this embodiment, the pressure regulating device 5 is a safety valve. When the pressure inside the tank 6 exceeds a set value (e.g., 4 MPa), the safety valve will automatically release pressure, reducing the pressure inside the tank 6 to the set value to ensure the desired performance. In this embodiment, the sealing cover body 1 includes a cover and a sealing ring, with the sealing ring fixedly connected to the side of the cover away from the crossbeam 2.

[0036] In this embodiment, the limiting groove 301 includes a transverse limiting surface 302 and two longitudinal limiting surfaces 303. The two ends of the transverse limiting surface 302 are respectively connected to the edges of the two longitudinal limiting surfaces 303 away from the tank body 6. Each longitudinal limiting surface 303 can limit the rotation of the crossbeam 2 around the axis of the lead screw 4 by contacting the crossbeam 2. The transverse limiting surface 302 can limit the movement of the crossbeam 2 away from the sealing cover body 1 by contacting the crossbeam 2.

[0037] In this embodiment, a driving component is also included. The driving component is connected to the lead screw 4. The driving component can drive the lead screw 4 to rotate around the axis of the lead screw 4 by rotating around the axis of the lead screw 4.

[0038] In this embodiment, the driving component is a handle 7, which is fixedly connected to the lead screw 4.

[0039] In this embodiment, an air inlet 101 is provided on the sealing cap body 1. After the sealing cap body 1 is pressed and sealed on the tank body 6, compressed air is injected into the tank body 6 through the air inlet 101.

[0040] In this embodiment, at least one handle 8 is also included, and each handle 8 is fixedly connected to the side of the sealing cap body 1 away from the tank body 6. Preferably, there are two handles 8, which make it easier to install and remove the sealing cap body 1.

[0041] In a preferred embodiment, the beam limiting device 3 includes a horizontal bar and two vertical bars. One end of each of the two vertical bars is fixedly connected to both ends of the horizontal bar, forming a gate-shaped structure. The other ends of both vertical bars are fixedly connected to the inlet end of the tank 6. A limiting groove 301 is formed between the horizontal bar and the two vertical bars. In a more preferred embodiment, the other ends of both vertical bars are fixedly connected to the upper end face of the tank 6.

[0042] As a preferred embodiment, a pressure relief hole is provided on the cover, and a 2cm long 1 / 4-inch pipe with external threads is welded to the pressure relief hole. A safety valve with a safety pressure of 4MPa is connected to the 1 / 4-inch pipe. When the pressure inside the tank 6 is higher than 4MPa, the pressure relief purpose is achieved.

[0043] In a preferred embodiment, the beam limiting device 3 is welded to the tank body 6.

[0044] In a preferred embodiment, the lead screw 4 and the crossbeam 2 are detachably connected.

[0045] In a preferred embodiment, the diameter of the cover is larger than the diameter of the feed inlet of the tank 6, and a sealing ring is provided at the joint between the cover and the feed inlet of the tank 6.

[0046] Example 2

[0047] This embodiment provides a paint spraying can 200, including a can body 6 and a sealing cap device 100 for paint spraying cans as described in Embodiment 1. The lead screw 4 can abut against the side of the sealing cap body 1 away from the can body 6 to make the sealing cap body 1 and the can body 6 seal together.

[0048] In this embodiment, a discharge port 601 is provided on the tank body 6.

[0049] The paint can 200 of this embodiment can be used for spraying paints such as alumina. It should be noted that the paint can 200 of this embodiment is not limited to spraying paints such as alumina.

[0050] This embodiment can adjust the pressure inside the tank 6 to a suitable range through the pressure regulating device 5, ensuring sufficient pressure and continuous, uniform material output during spraying, thus guaranteeing a good spraying effect. It also solves problems such as leakage, pipe blockage, and tank explosion caused by excessive pressure. Since the molten alumina inside the tank 6 no longer seeps out from the gap between the lid and the tank 6, it reduces alumina waste. Using the same mixing ratio, filling one tank with molten alumina allows for spraying one more crucible, saving approximately 2.5 kg of alumina. Secondly, it prevents molten alumina from flowing onto the ground and polluting the environment, while also improving the working environment for personnel and reducing workload.

[0051] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A sealing cap device for a paint can, characterized by: Includes a sealing cap body, a crossbeam, a crossbeam limiting device, a lead screw, and a pressure regulating device, wherein: One side of the sealing cap body is used to connect to the feed inlet of the tank; There are two beam limiting devices. Each beam limiting device is fixedly connected to one end of the feed inlet of the tank body. Both beam limiting devices are located on the outside of the sealing cover body. Each beam limiting device is provided with a limiting groove. The crossbeam is located on the other side of the sealing cover body, and both ends of the crossbeam can extend into the two limiting grooves respectively; The lead screw is threadedly connected to the crossbeam. The limiting groove can restrict the rotation of the crossbeam around the axis of the lead screw. The limiting groove can restrict the movement of the crossbeam away from the sealing cap body. The lead screw can cause the crossbeam to move in the limiting groove along the axis of the lead screw by rotating along the axis of the lead screw. The lead screw can abut against the side of the sealing cap body away from the tank body. The pressure regulating device is connected to the sealing cover body and is used to regulate the pressure inside the tank.

2. The sealing cap device for paint spraying tanks according to claim 1, characterized in that: The pressure regulating device is a safety valve.

3. The sealing cap device for paint spraying tanks according to claim 1, characterized in that: The sealing cover body includes a cover body and a sealing ring, and the sealing ring is fixedly connected to the side of the cover body away from the crossbeam.

4. The sealing cap device for paint spraying tanks according to claim 1, characterized in that: The limiting groove includes a transverse limiting surface and two longitudinal limiting surfaces. The two ends of the transverse limiting surface are respectively connected to the edges of the two longitudinal limiting surfaces away from the tank body. Each longitudinal limiting surface can restrict the rotation of the crossbeam around the screw axis by contacting the crossbeam. The transverse limiting surface can restrict the movement of the crossbeam away from the sealing cap body by contacting the crossbeam.

5. The sealing cap device for paint spraying tanks according to claim 1, characterized in that: It also includes a drive component connected to the lead screw, which can drive the lead screw to rotate about the axis of the lead screw by rotating about the axis of the lead screw.

6. The sealing cap device for paint spraying tanks according to claim 5, characterized in that: The driving component is a handle, which is fixedly connected to the lead screw.

7. The sealing cap device for paint spraying tanks according to claim 1, characterized in that: An air inlet is provided on the sealing cover body.

8. The sealing cap device for paint spraying tanks according to claim 1, characterized in that: It also includes at least one handle, each of which is fixedly connected to the side of the sealing cap body away from the can body.

9. A spray paint can, characterized in that: The device includes the tank body and the sealing cap device for paint spraying tanks according to any one of claims 1 to 8, wherein the lead screw is capable of sealing the sealing cap body to the tank body by abutting against the side of the sealing cap body away from the tank body.

10. The paint can according to claim 9, characterized in that: The tank is equipped with a discharge port.

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