Mechanical pressure compensation device for tank body

Abstract

The utility model relates to the field of valve bodies, in particular to a mechanical pressure compensation device for a tank body, which comprises a mounting cover and a one-way valve, the mounting cover comprises an upper cover body and a lower base, and the lower base is provided with external threads; the one-way valve penetrates through the mounting cover, the upper end of the one-way valve protrudes out of the upper cover body, and the lower end protrudes out of the lower base; a filter is arranged at the upper end of the one-way valve. Through the arrangement of the one-way valve, after content substances in the tank body are extracted, external atmosphere can be introduced through the one-way valve to balance internal and external air pressure, and the situation that the tank body is compressed and deformed due to vacuum formed in the tank body is avoided; in addition, due to the design of the filter on the one-way valve, impurities in the atmosphere can be prevented from being introduced into the tank body along with introduced gas to pollute the tank body and influence subsequent use of the tank body.

Description

Technical Field

[0001] The utility model relates to the field of valve bodies, in particular to a tank mechanical pressure compensation device. Background Art

[0002] During the extraction and transfer process of the contents of a tank containing liquid, the extraction of the sealed tank will cause a vacuum to form inside the tank, which may cause the tank to be compressed and deformed if the tank is thin or made of plastic. In order to avoid this, a simple hole is usually opened to allow the outside atmosphere to enter and balance the air pressure inside and outside the tank. However, the hole design also makes it easy for impurities to mix into the gas, and in addition, liquid is prone to leak from the hole during transportation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a tank mechanical pressure compensation device which can supplement the internal pressure of the tank during extraction and prevent impurities from mixing in and liquid from flowing out.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a tank mechanical pressure compensation device, including a mounting cover and a one-way valve, the mounting cover includes an upper cover body and a lower base, the lower base is provided with an external thread; the one-way valve passes through the mounting cover, its upper end protrudes from the upper cover body, and its lower end protrudes from the lower base; a filter is provided at the upper end of the one-way valve.

[0005] Furthermore, the filter is detachably connected to the upper end of the one-way valve.

[0006] Furthermore, the filter is threadedly connected to the upper end of the one-way valve.

[0007] Furthermore, the filter comprises a plurality of round bead structures, and the plurality of round bead structures are die-cast to form a structure with a plurality of dense pores.

[0008] Furthermore, the filter is cylindrical.

[0009] Furthermore, the one-way valve is embedded in the installation cover by injection molding.

[0010] Furthermore, the upper cover body and the lower base are provided with mounting holes, and the one-way valve is threadedly connected in the mounting holes.

[0011] Furthermore, it also includes a valve core, which is arranged on the mounting cover. The valve core passes through the mounting cover, with its upper end protruding from the upper cover body and its lower end protruding from the lower base.

[0012] Furthermore, the one-way valve comprises a valve body, a valve core, a spring and an adjusting piece. The valve body is provided with a valve core and a spring. One end of the valve core faces the opening of the valve body, and the other end is connected to the spring. The spring is connected to the adjusting piece.

[0013] Furthermore, a sealing ring is sleeved on the lower base, and a sealing rubber layer is provided on the side of the lower base.

[0014] The beneficial effects of the utility model are as follows: through the setting of the one-way valve, the external atmosphere can be allowed to enter the tank body through the one-way valve after the content of the tank body is extracted to balance the internal and external air pressures, thereby avoiding the formation of a vacuum inside the tank body and causing the tank body to be compressed and deformed; in addition, the design of the filter on the one-way valve can prevent impurities in the atmosphere from being introduced into the tank body along with the introduced gas, thereby contaminating the tank body and affecting the subsequent use of the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a tank mechanical pressure compensation device according to a specific implementation mode of the utility model;

[0016] Figure 2 It is a cross-sectional view of a tank mechanical pressure compensation device according to a specific implementation mode of the utility model.

[0017] Description of labels:

[0018] 1. Installation cover; 11. Upper cover body; 12. Lower base; 2. One-way valve; 3. Filter; 4. Valve core. DETAILED DESCRIPTION

[0019] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0020] Please refer to Figure 1 to Figure 2 A tank mechanical pressure compensation device comprises a mounting cover 1 and a one-way valve 2, wherein the mounting cover 1 comprises an upper cover body 11 and a lower base 12, wherein the lower base 12 is provided with an external thread; the one-way valve 2 passes through the mounting cover 1, wherein the upper end thereof protrudes from the upper cover body 11, and the lower end thereof protrudes from the lower base 12; a filter 3 is provided at the upper end of the one-way valve 2.

[0021] From the above description, it can be seen that the beneficial effect of the utility model is that: through the setting of the one-way valve 2, the external atmosphere can be allowed to enter the tank body through the one-way valve 2 after the content of the tank body is extracted to balance the internal and external air pressures, thereby avoiding the formation of a vacuum inside the tank body and causing the tank body to be compressed and deformed; in addition, the design of the filter 3 on the one-way valve 2 can prevent impurities in the atmosphere from being introduced into the tank body along with the introduced gas, contaminating the tank body and affecting the subsequent use of the tank body.

[0022] Furthermore, the filter 3 is detachably connected to the upper end of the one-way valve 2 .

[0023] It can be seen from the above description that the filter 3 can be easily replaced and maintained by virtue of its detachable arrangement.

[0024] Furthermore, the filter 3 is threadedly connected to the upper end of the one-way valve 2 .

[0025] As can be seen from the above description, the filter 3 is quickly assembled on the upper end of the one-way valve 2 in the form of a threaded connection.

[0026] Furthermore, the filter 3 includes a plurality of round bead structures, and the plurality of round bead structures are die-cast to form a structure with a plurality of dense pores.

[0027] It can be seen from the above description that the filter 3 formed by die-casting of multiple bead structures has multiple gaps between the cylindrical structures, which can serve as filter holes to effectively filter the external atmosphere.

[0028] Furthermore, the filter 3 is cylindrical.

[0029] From the above description, it can be seen that the filter 3 with a cylindrical structure has a large filtering area, which can ensure the air intake; at the same time, it can match the cylindrical shape of the conventional one-way valve 2, is relatively consistent as a whole, has beautiful assembly, and is convenient for unified packaging.

[0030] Furthermore, the one-way valve 2 is embedded in the mounting cover 1 by injection molding.

[0031] As can be seen from the above description, the one-way valve 2 is fixed in the mounting cover 1 by insert injection molding, which can prevent the one-way valve 2 from falling off while also ensuring the sealing performance between the one-way valve 2 and the mounting cover 1.

[0032] Furthermore, the upper cover body 11 and the lower base 12 are provided with mounting holes, and the one-way valve 2 is threadedly connected in the mounting holes.

[0033] As can be seen from the above description, the one-way valve 2 can be installed in the mounting holes of the upper cover 11 and the lower base 12 by threaded connection, so that it can be replaced as needed. In the case where the one-way valve 2 is not needed, it can be quickly removed and the mounting hole can be blocked by other sealing covers.

[0034] Furthermore, it also includes a valve core 4 , which is arranged on the mounting cover 1 . The valve core 4 passes through the mounting cover 1 , with its upper end protruding from the upper cover body 11 and its lower end protruding from the lower base 12 .

[0035] It can be seen from the above description that, through the design of the valve core 4, a certain pressure gas can be injected when the contents of the tank are extracted to assist in accelerating the extraction efficiency.

[0036] Furthermore, the one-way valve 2 includes a valve body, a valve core, a spring and an adjusting piece. The valve body is provided with a valve core and a spring. One end of the valve core faces the opening of the valve body, and the other end is connected to the spring. The spring is connected to the adjusting piece.

[0037] From the above description, it can be seen that when the need to introduce gas of different pressures in a special scenario is met, the tightness of the spring can be adjusted by the adjusting member, so that only gas that meets a certain pressure can push the spring and the valve core to move and then pass into the tank. Optionally, the tightness of the spring can be adjusted by rotating the bolt and the spring.

[0038] Furthermore, a sealing ring is sleeved on the lower base 12 , and a sealing rubber layer is provided on the side surface of the lower base 12 .

[0039] It can be seen from the above description that the design of the sealing ring and the sealing rubber layer on the lower base 12 can ensure reliable sealing performance after the mounting cover 1 is assembled to the tank body.

[0040] Embodiment 1:

[0041] Application scenario: In the design of the tank, due to the need for extraction, a simple hole is usually made to allow the outside atmosphere to enter to balance the air pressure inside and outside the tank. However, the hole design also makes it easy for impurities to mix into the gas entering. In addition, it is also easy for liquid to leak from the hole in transportation situations.

[0042] like Figure 1 to Figure 2 As shown, the tank mechanical pressure compensation device of this embodiment includes a mounting cover 1 and a one-way valve 2. The mounting cover 1 includes an upper cover body 11 and a lower base 12. The lower base 12 is provided with an external thread, a sealing ring is sleeved on the lower base 12, and a sealing rubber layer is provided on the side of the lower base 12; the one-way valve 2 penetrates the mounting cover 1, and its upper end protrudes from the upper cover body 11, and its lower end protrudes from the lower base 12; specifically, the one-way valve 2 is embedded and injection-molded in the mounting cover 1;

[0043] A filter 3 is provided at the upper end of the one-way valve 2. The filter 3 is detachably connected to the upper end of the one-way valve 2. Specifically, the filter 3 is threadedly connected to the upper end of the one-way valve 2.

[0044] In this embodiment, the filter 3 is cylindrical and includes a plurality of round bead structures. The plurality of round bead structures are die-cast to form a structure with a plurality of dense pores.

[0045] The one-way valve 2 comprises a valve body, a valve core, a spring and an adjusting member. The valve body is provided with a valve core and a spring. One end of the valve core faces the opening of the valve body, and the other end is connected to the spring. The spring is connected to the adjusting member. Figure 2The cross-sectional view shown in FIG. 1 is a simplified diagram of the one-way valve 2 . This type of adjustable one-way valve 2 can adopt a common style on the market, which will not be repeated here.

[0046] Embodiment 2:

[0047] The difference between the second embodiment and the first embodiment is that:

[0048] The upper cover 11 and the lower base 12 are provided with mounting holes, and the one-way valve 2 is threadedly connected in the mounting holes. The one-way valve 2 arranged in a detachable form is provided with a sealing ring at the connection part with the mounting cover 1, and a sealant is filled in the gap between the two after assembly.

[0049] Embodiment three:

[0050] The difference between the third embodiment and the first embodiment is that:

[0051] The valve core 4 is also included. The valve core 4 is arranged on the mounting cover 1. The valve core 4 passes through the mounting cover 1, and its upper end protrudes from the upper cover body 11, and its lower end protrudes from the lower base 12. The valve core 4 can be arranged in the mounting cover 1 by insert injection molding or threaded connection.

[0052] To sum up, the mechanical pressure compensation device for the tank provided by the utility model, through the setting of a one-way valve, allows the external atmosphere to be allowed to enter the tank through the one-way valve after the content of the tank is extracted to balance the internal and external air pressures, thereby avoiding the formation of a vacuum inside the tank and causing the tank to be compressed and deformed; in addition, the design of the filter on the one-way valve can prevent impurities in the atmosphere from being introduced into the tank along with the incoming gas, thereby contaminating the tank and affecting the subsequent use of the tank.

[0053] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A tank mechanical pressure compensation device, characterized in that: It includes a mounting cover and a one-way valve. The mounting cover includes an upper cover body and a lower base. The lower base is provided with an external thread. The one-way valve passes through the mounting cover, with its upper end protruding from the upper cover body and its lower end protruding from the lower base. A filter is provided at the upper end of the one-way valve.

2. The tank mechanical pressure compensation device according to claim 1, characterized in that: The filter is detachably connected to the upper end of the one-way valve.

3. The tank mechanical pressure compensation device according to claim 2, characterized in that: The filter is threadedly connected to the upper end of the one-way valve.

4. The tank mechanical pressure compensation device according to claim 1, characterized in that: The filter comprises a plurality of round bead structures, and the plurality of round bead structures are die-cast to form a structure with a plurality of dense pores.

5. The tank mechanical pressure compensation device according to claim 1, characterized in that: The filter is cylindrical.

6. The tank mechanical pressure compensation device according to claim 1, characterized in that: The one-way valve is embedded and injection-molded in the installation cover.

7. The tank mechanical pressure compensation device according to claim 1, characterized in that: The upper cover body and the lower base are provided with mounting holes, and the one-way valve is threadedly connected in the mounting holes.

8. The tank mechanical pressure compensation device according to claim 1, characterized in that: It also includes a valve core, which is arranged on the mounting cover. The valve core passes through the mounting cover, with its upper end protruding from the upper cover body and its lower end protruding from the lower base.

9. The tank mechanical pressure compensation device according to claim 1, characterized in that: The one-way valve comprises a valve body, a valve core, a spring and an adjusting member. The valve body is provided with a valve core and a spring. One end of the valve core faces the opening of the valve body, and the other end is connected to the spring. The spring is connected to the adjusting member.

10. The tank mechanical pressure compensation device according to claim 1, characterized in that: A sealing ring is sleeved on the lower base, and a sealing rubber layer is provided on the side of the lower base.

Images