Liquid storage tank

Abstract

According to the liquid storage tank, the filtering and sealing assembly is arranged on the liquid outlet, and the filtering and sealing assembly and the liquid outlet are of a split structure, so that the filtering and sealing assembly is more convenient to replace and maintain. When the filtering piece is blocked or damaged due to long-time use, only the sealing cover needs to be simply disassembled, the filtering piece in the filtering piece is taken out for replacement or cleaning, the whole tank body does not need to be disassembled, and the working efficiency is greatly improved. The liquid outlet piece is communicated with the liquid outlet of the tank body and the external environment, it is guaranteed that liquid can flow according to a preset path, and an installation space is provided for the filtering piece through the liquid outlet channel formed in the liquid outlet piece. And the filtering piece is responsible for intercepting impurities and particulate matters in the liquid to ensure that the flowing-out liquid is pure and pollution-free. And the sealing cover plays a role in sealing and fixing. The anti-leakage device is tightly attached to the liquid outlet piece, and liquid is prevented from leaking in the flowing-out process.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid storage tanks, and particularly relates to a liquid storage tank. Background Art

[0002] For the existing liquid storage tank, the liquid outlet structure at the bottom of the tank body usually adopts the way of welding the liquid storage tank and the tank body. Such a structure is not only complex to process, but also difficult to repair or replace once problems occur at the welding part, which affects the service life and safety of the liquid storage tank. At the same time, due to the lack of a device for filtering impurities in the liquid, the impurities in the liquid are easy to block the liquid outlet, affecting the liquid outlet effect. Summary of the Invention

[0003] In view of this, the utility model provides a liquid storage tank.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A liquid storage tank includes a tank body. An outlet is opened at the bottom of the tank body. A filtering and sealing assembly is arranged in the outlet. The filtering and sealing assembly is hermetically connected to the outlet. The filtering and sealing assembly includes a liquid outlet member, a filtering member and a sealing cover. The liquid outlet member is arranged in the outlet. A liquid outlet channel is formed in the liquid outlet member. The filtering member is arranged in the liquid outlet channel. The sealing cover is arranged at one end of the liquid outlet member away from the outlet. A sealing member is arranged between the liquid outlet member and the outlet. The sealing member is hermetically connected to the outer surface of the liquid outlet member and the inner wall of the outlet respectively.

[0006] Preferably, the liquid outlet member is arranged in a hollow frustum structure. The liquid outlet member has an annular inclined surface. The annular inclined surface is hermetically connected to the inner wall of the outlet. A plurality of sealing ring grooves are arranged between the annular inclined surface and the inner wall of the outlet. The sealing ring grooves have a first sealing portion formed on the liquid outlet member and a second sealing portion formed on the inner wall of the outlet. Two sides of the sealing member respectively extend into the first sealing portion and the second sealing portion to be hermetically connected to the liquid outlet member and the inner wall of the outlet.

[0007] Preferably, the cross section of the liquid outlet channel inside the liquid outlet member is arranged in a cylindrical rectangle. An annular positioning portion protrudes inside the liquid outlet channel. An annular slot is opened on the end surface of the annular positioning portion away from the sealing cover. The filtering member has an annular positioning end and a filter net surface. The filter net surface is arranged between the annular positioning ends. The annular positioning ends extend into the annular slot to be connected to the liquid outlet member.

[0008] Preferably, the sealing cover has a cover body part and a cover body connecting part. The cover body connecting part protrudes from the center of the cover body part towards the liquid outlet channel. An external thread is provided on the cover body connecting part. An internal thread is provided on the inner wall of the liquid outlet channel on the side of the annular positioning part away from the filter element. The cover body connecting part is threadedly connected to the inner wall of the liquid outlet part, and the cover body connecting part abuts against the annular positioning part.

[0009] Preferably, the outer diameter of the cover body part is larger than that of the cover body connecting part. A sealing rubber ring is provided between the cover body part and the liquid outlet part. The upper end surface and the lower end surface of the sealing rubber ring are respectively in sealing contact with the cover body part and the bottom end of the liquid outlet part, and the cover body part presses the sealing rubber ring.

[0010] Preferably, the sealing member is a sealing ring made of rubber material.

[0011] Preferably, the liquid outlet part is made of polyphenylene sulfide material.

[0012] The beneficial effects of the present utility model are as follows: By providing a filter sealing assembly on the liquid outlet, the filter sealing assembly and the liquid outlet are of a split structure. This design makes the replacement and maintenance of the filter sealing assembly more convenient. When the filter element is blocked or damaged due to long-term use, simply remove the sealing cover and take out the internal filter element for replacement or cleaning, without having to disassemble the entire tank body, which greatly improves the work efficiency. The liquid outlet part connects the liquid outlet of the tank body and the external environment, not only ensuring that the liquid can flow along the predetermined path, but also providing an installation space for the filter element through the liquid outlet channel formed inside it. The filter element is responsible for intercepting impurities and particulate matters in the liquid to ensure that the outflowing liquid is pure and pollution-free. The sealing cover plays a role of sealing and fixing. It closely fits on the liquid outlet part to prevent liquid leakage during the outflow process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Att Figure 1 is a schematic structural diagram of the present utility model;

[0015] Att Figure 2 is Att Figure 1 the enlarged view of part A in the attached DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] The present utility model will be further described below in conjunction with the accompanying drawings of the specification.

[0018] The present utility model provides the following technical solutions:

[0019] As shown in the Figure 1-2 accompanying drawings, the present utility model discloses a liquid storage tank, including a tank body 1. A liquid outlet 2 is opened at the bottom of the tank body 1. A filtering and sealing assembly is arranged in the liquid outlet 2. The filtering and sealing assembly is hermetically connected to the liquid outlet 2. The filtering and sealing assembly includes a liquid outlet member 3, a filtering member 4, and a sealing cover 5. The liquid outlet member 3 is arranged in the liquid outlet 2. A liquid outlet channel 6 is formed in the liquid outlet member 3. The filtering member 4 is arranged in the liquid outlet channel 6. The sealing cover 5 is arranged at one end of the liquid outlet member 3 away from the liquid outlet 2. A sealing member 7 is arranged between the liquid outlet member 3 and the liquid outlet 2. The sealing member 7 is hermetically connected to the outer surface of the liquid outlet member 3 and the inner wall of the liquid outlet 2 respectively. Specifically, in this design, by arranging a filtering and sealing assembly on the liquid outlet 2, the filtering and sealing assembly and the liquid outlet 2 are of a split structure. This design makes the replacement and maintenance of the filtering and sealing assembly more convenient. When the filtering member 4 is blocked or damaged due to long-term use, only need to simply remove the sealing cover 5 and take out the internal filtering member 4 for replacement or cleaning, without disassembling the entire tank body 1, which greatly improves the work efficiency. The liquid outlet member 3 connects the liquid outlet 2 of the tank body 1 and the external environment, which not only ensures that the liquid can flow along the predetermined path, but also provides an installation space for the filtering member 4 through the liquid outlet channel 6 formed inside it. The filtering member 4 is responsible for intercepting impurities and particulate matters in the liquid to ensure that the outflowing liquid is pure and pollution-free. The sealing cover 5 plays a role of sealing and fixing. It closely fits on the liquid outlet member 3 to prevent liquid leakage during the outflow process.

[0020] Further, the liquid outlet member 3 is provided in a hollow frustum structure. The liquid outlet member 3 has an annular inclined surface 8, and the annular inclined surface 8 is in sealed connection with the inner wall of the liquid outlet 2. A plurality of seal ring grooves 9 are provided between the annular inclined surface 8 and the inner wall of the liquid outlet 2. The seal ring grooves 9 have a first sealing portion 10 formed on the liquid outlet member 3 and a second sealing portion 11 formed on the inner wall of the liquid outlet 2. Both sides of the seal member 7 extend into the first sealing portion 10 and the second sealing portion 11 respectively to be in sealed connection with the inner walls of the liquid outlet member 3 and the liquid outlet 2. Specifically, in this embodiment, the frustum structure design of the liquid outlet member 3 not only increases the contact area with the inner wall of the liquid outlet 2, but also further improves the sealing effect through the close fit between the annular inclined surface 8 and the inner wall of the liquid outlet 2. At the same time, the setting of the seal ring grooves 9 enables the seal member 7 to form multiple seals between the liquid outlet member 3 and the liquid outlet 2 through the mutual cooperation of the first sealing portion 10 and the second sealing portion 11, effectively preventing the leakage of liquid during the flow process. The liquid outlet member 3 is made of polyphenylene sulfide material, and the liquid outlet member 3 of this material has high heat resistance, excellent mechanical properties and dimensional stability, and can maintain good performance in high-temperature and humid environments.

[0021] Further, the cross-section of the liquid outlet channel 6 inside the liquid outlet member 3 is provided in a cylindrical rectangular shape. An annular positioning portion 12 protrudes inside the liquid outlet channel 6. An annular slot 13 is opened on the end surface of the annular positioning portion 12 away from the sealing cover 5. The filter member 4 has an annular positioning end 14 and a filter screen surface 15. The filter screen surface 15 is arranged between the annular positioning ends 14. The annular positioning ends 14 extend into the annular slot 13 to be connected with the liquid outlet member 3. Specifically, in this embodiment, the cylindrical rectangular design of the cross-section of the liquid outlet channel 6 not only increases the contact area between the filter member 4 and the inner wall of the liquid outlet channel 6, improves the filtering effect, but also makes the liquid flow more stably during the flow process, reduces the formation of turbulence and eddy currents, and further reduces the residue of impurities and particulate matters. The setting of the annular positioning portion 12 provides a stable installation position for the filter member 4. The filter member 4 is tightly connected with the liquid outlet member 3 by extending its annular positioning ends 14 into the annular slot 13, forming a sealed filtering system. This design not only ensures the stability of the filter member 4 during use, but also prevents the liquid from flowing around the filter member 4 directly and ensures the purity of the outflowing liquid. At the same time, the setting of the filter screen surface 15 enables the filter member 4 to effectively intercept impurities and particulate matters in the liquid. The material and pore size of the filter screen surface 15 can be selected according to actual needs to meet the filtering requirements of different liquids.

[0022] Further, the sealing cover 5 has a cover body portion 16 and a cover body connecting portion 17. The cover body connecting portion 17 protrudes from the center of the cover body portion 16 toward the liquid outlet channel 6. An external thread is provided on the cover body connecting portion 17. An internal thread is provided on the inner wall of the liquid outlet channel 6 on the side of the annular positioning portion 12 away from the filter element 4. The cover body connecting portion 17 is threadedly connected to the inner wall of the liquid outlet member 3, and the cover body connecting portion 17 abuts against the annular positioning portion 12. Specifically, in this embodiment, the design of the sealing cover 5 fully considers the sealing performance and operation convenience. The cover body connecting portion 17 is tightly fitted with the internal thread on the inner wall of the liquid outlet channel 6 through the external thread, forming a reliable threaded connection. This connection method not only ensures the tightness of the sealing cover 5 and prevents liquid leakage during outflow, but also makes the disassembly and assembly of the sealing cover 5 simple and convenient. The design that the cover body connecting portion 17 abuts against the annular positioning portion 12 further enhances the stability of the filter element 4 in the liquid outlet channel 6 and avoids the situation that the filtering effect is affected due to the shaking of the filter element 4.

[0023] Further, the outer diameter of the cover body portion 16 is larger than the outer diameter of the cover body connecting portion 17. A sealing rubber ring 18 is provided between the cover body portion 16 and the liquid outlet member 3. The upper end surface and the lower end surface of the sealing rubber ring 18 are hermetically connected to the cover body portion 16 and the bottom end of the liquid outlet member 3 respectively, and the cover body portion 16 presses the sealing rubber ring 18. Specifically, in this embodiment, the setting of the sealing rubber ring 18 further enhances the sealing performance of the sealing cover 5. Since the outer diameter of the cover body portion 16 is larger than the outer diameter of the cover body connecting portion 17, the sealing rubber ring 18 is tightly compressed between the cover body portion 16 and the liquid outlet member 3, forming a complete sealing surface. This design effectively prevents liquid leakage between the sealing cover 5 and the liquid outlet member 3 and ensures the safety of the liquid inside the tank body 1. At the same time, the material of the sealing rubber ring 18 has good elasticity and corrosion resistance, and can maintain stable performance under different temperatures and chemical environments, thereby extending the service life of the heat preservation storage tank.

[0024] Further, the sealing member 7 is a rubber material sealing ring.

[0025] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A liquid storage tank, comprising a tank body, wherein a liquid outlet is provided at the bottom of the tank body, and wherein: A filter sealing assembly is arranged in the liquid outlet, and the filter sealing assembly is sealed with the liquid outlet. The filter sealing assembly comprises a liquid outlet part, a filter part and a sealing cover. The liquid outlet part is arranged in the liquid outlet, and a liquid outlet channel is formed in the liquid outlet part. The filter part is arranged in the liquid outlet channel, and the sealing cover is arranged at one end of the liquid outlet part away from the liquid outlet. A sealing member is arranged between the liquid outlet part and the liquid outlet, and the sealing member is sealed with the outer surface of the liquid outlet part and the inner wall of the liquid outlet, respectively.

2. The liquid storage tank according to claim 1, characterized in that: The liquid outlet piece is arranged in a hollow frustum structure, and the liquid outlet piece has an annular inclined surface, and the annular inclined surface is sealed with the inner wall of the liquid outlet. A plurality of sealing ring grooves are arranged between the annular inclined surface and the inner wall of the liquid outlet, and the sealing ring grooves have a first sealing portion formed on the liquid outlet piece and a second sealing portion formed on the inner wall of the liquid outlet. Both sides of the sealing piece extend into the first sealing portion and the second sealing portion respectively and are sealed with the liquid outlet piece and the inner wall of the liquid outlet.

3. The liquid storage tank according to claim 1, characterized in that: The cross-section of the liquid outlet channel inside the liquid outlet part is set in a cylindrical rectangular shape, the inner protrusion of the liquid outlet channel forms an annular positioning portion, and an annular slot is provided on the end surface of the annular positioning portion on the side away from the sealing cover. The filter element has an annular positioning end and a filter mesh surface, and the filter mesh surface is arranged between the annular positioning ends, and the annular positioning end extends into the annular slot and is connected with the liquid outlet part.

4. The liquid storage tank according to claim 3, characterized in that: The sealing cover comprises a cover body and a cover body connecting part, wherein the cover body connecting part is formed by protruding from the center of the cover body toward the liquid outlet channel, an external thread is arranged on the cover body connecting part, and an internal thread is arranged on the inner wall of the liquid outlet channel on the side of the annular positioning part away from the filter element, the cover body connecting part is threadedly connected to the inner wall of the liquid outlet element, and the cover body connecting part abuts against the annular positioning part.

5. The liquid storage tank according to claim 4, characterized in that: The outer diameter of the cover body is larger than the outer diameter of the cover body connecting part. A sealing rubber ring is arranged between the cover body and the liquid outlet. The upper end surface and the lower end surface of the sealing rubber ring are respectively sealed with the cover body and the bottom end of the liquid outlet. The cover body presses the sealing rubber ring.

6. The liquid storage tank according to claim 1, characterized in that: The sealing element is a sealing ring made of rubber material.

7. The liquid storage tank according to claim 1, characterized in that: The liquid outlet piece is made of polyphenylene sulfide.

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