Negative pressure fish tank

Abstract

The utility model relates to a negative pressure fish tank which comprises a tank body, a cover body and a transparent negative pressure cavity, the tank body is detachably connected with the cover body, a water through hole is formed in the center of the cover body, a first limiting fixing groove corresponding to the lower edge of the negative pressure cavity is formed in the outer side of the water through hole, and a second limiting fixing groove corresponding to the lower edge of the negative pressure cavity is formed in the cover body. The negative pressure cavity can be fixed to the cover body through the first limiting and fixing groove, the cover body and the negative pressure cavity are assembled through the limiting and fixing groove in the cover body, small fixing parts do not need to be used, the assembling process is simple and convenient, fixation is firm and stable, and the device is very suitable for being used at home.

Description

Technical Field

[0001] The utility model belongs to the field of fish tanks, and refers to a negative pressure fish tank. Background Art

[0002] With the improvement of living standards, raising fish at home has gradually become one of people's hobbies. Therefore, simple small fish tanks have gradually entered the public's field of vision. Among them, negative pressure fish tanks have become the mainstream of small home fish tanks due to their higher interest and ornamental value.

[0003] A negative pressure fish tank is a fish tank with a closed top and an open bottom, which uses atmospheric pressure to raise the water level.

[0004] Regarding small home use negative pressure fish tanks, the most important thing is the installation of the negative pressure chamber. The convenience and sealing of the installation are the key points to consider whether the negative pressure fish tank is excellent.

[0005] The installation method of the negative pressure cavity of the existing negative pressure fish tank can refer to the technical solution disclosed in patent CN219698776U.

[0006] However, the above-mentioned negative pressure fish tank has some problems or areas for improvement: the negative pressure cavity of the negative pressure fish tank has many installation parts, the assembly steps are cumbersome and complicated, and the use process is not stable and reliable enough.

[0007] Therefore, the present invention proposes a solution to the above-mentioned technical problems. Utility Model Content

[0008] The purpose of the utility model is to provide a negative pressure fish tank, which can install the negative pressure cavity in a simpler and more labor-saving manner, minimize the use of small parts, and improve the stability of the installation of the negative pressure cavity.

[0009] The purpose of the utility model is achieved as follows: a negative pressure fish tank, comprising a tank body, a cover body and a transparent negative pressure cavity, the tank body and the cover body are detachably connected, a water passage is provided in the middle of the cover body, and a sealing structure for blocking the lower edge of the negative pressure cavity is provided on the cover body.

[0010] In the above-mentioned negative pressure fish tank, the sealing structure is a first limiting fixing groove corresponding to the lower edge of the negative pressure cavity, and the negative pressure cavity can be fastened to the cover body through the first limiting fixing groove.

[0011] In the above-mentioned negative pressure fish tank, the inner side wall of the first limiting fixing groove is inclined outward, and is wide at the top and narrow at the bottom. The lower edge of the negative pressure cavity will become tighter as the depth of the cavity is inserted into the first limiting fixing groove.

[0012] In the above-mentioned negative pressure fish tank, the first limiting fixing groove is wide at the top and narrow at the bottom, and the lower edge of the negative pressure cavity will become tighter as the depth of the negative pressure cavity is inserted into the first limiting fixing groove.

[0013] In the above-mentioned negative pressure fish tank, a second limiting fixing groove facing downward is formed on the peripheral side of the cover body, and the second limiting fixing groove corresponds to the upper edge of the side wall of the tank body. The cover body can be fixed on the tank body through the second limiting fixing groove.

[0014] In the above-mentioned negative pressure fish tank, the cover body is a sunken bottom surface, and its bottom surface is lower than the upper edge of the side wall of the tank body, forming a water storage space.

[0015] In the above-mentioned negative pressure fish tank, a drainage hole is arranged on the bottom surface of the cover body, and the water overflowing from the cover body can flow back into the tank body through the drainage hole.

[0016] In the above-mentioned negative pressure fish tank, a receiving edge is horizontally extended outward from the upper edge of the side wall of the tank body, and the receiving edge abuts against the bottom surface of the second limiting fixing groove.

[0017] In the above-mentioned negative pressure fish tank, handles are provided at both ends of the tank body.

[0018] In the above-mentioned negative pressure fish tank, a handle notch is provided at a position of the second limiting fixing groove corresponding to the handle.

[0019] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0020] The negative pressure fish tank of the utility model is provided with a cover body, and the negative pressure cavity is assembled through the limiting fixing grooves on the cover body, and no tiny fixing parts are needed. The assembly process is simple and convenient, and the fixing is firm and stable, which is very suitable for home use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is one of the three-dimensional structural schematic diagrams of the negative pressure fish tank of the utility model.

[0022] Figure 2 It is a cross-sectional view of the negative pressure fish tank of the utility model.

[0023] Figure 3 It is one of the three-dimensional structural schematic diagrams of the cover body of the negative pressure fish tank of the utility model.

[0024] Figure 4 This is the second schematic diagram of the three-dimensional structure of the cover of the negative pressure fish tank of the utility model.

[0025] Figure 5 The utility model is a three-dimensional structural schematic diagram of a negative pressure fish tank.

[0026] Figure 6This is the second three-dimensional structural schematic diagram of the negative pressure fish tank of the utility model.

[0027] Figure 7 yes Figure 2 Enlarged view of point A.

[0028] The meaning of the symbols in the figure:

[0029] 1-cylinder body; 2-cover body; 3-negative pressure cavity; 20-water passage; 21-first limit fixing groove;

[0030] 22-second limit fixing groove; 23-drainage hole; 24-handle notch; 11-supporting edge;

[0031] 12-Handle. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with specific embodiments:

[0033] like Figure 1-7 As shown, a negative pressure fish tank comprises a tank body 1, a cover body 2 and a transparent negative pressure cavity 3, wherein the tank body 1 and the cover body 2 are detachably connected, a water passage 20 is arranged in the middle of the cover body 2, water and fish can enter the negative pressure cavity 3 through the water passage 20, a sealing structure for blocking the lower edge of the negative pressure cavity 3 is arranged on the cover body 2, and the sealing structure is a first limiting fixing groove 21 corresponding to the lower edge of the negative pressure cavity 3, and the specific structure of the groove can be referred to in the attached manual Figure 7 The lower edge of the negative pressure cavity 3 will fit tightly with the side wall of the first limiting fixing groove 21. In the case of a small amount of water, the sealing effect will be better. The negative pressure cavity 3 can be fastened to the cover body 2 through the first limiting fixing groove 21. The lower edge of the negative pressure cavity 3 is formed with an "L"-shaped edge to increase the contact area with the first limiting fixing groove 21 and enhance the sealing effect. In the present technical solution, the negative pressure cavity 3 is evacuated through the exhaust pipe. The exhaust pipe is passed into the negative pressure cavity 3 from the other side of the cylinder body 1 to evacuate the air. The exhaust pipe air extraction method described above is not shown in the drawings in the specification. This is a mature existing technical solution in this field and will not be described in detail here. After the air is extracted, the water stored in the cylinder body 1 will be pressed into the negative pressure cavity 3 by the atmospheric pressure, and the negative pressure fish tank can be used normally. When installing the negative pressure cavity, the negative pressure fish tank of the utility model does not require other redundant small parts, such as screws, bolts, nuts, etc. As for simply buckling them in the first limit fixing groove 21 of the cover body 2, it is also extremely simple and labor-saving to install the cover body 2 on the cylinder body 1.

[0034] Furthermore, the inner side wall of the first limit fixing groove 21 is inclined outward, and is wide at the top and narrow at the bottom. The lower edge of the negative pressure cavity 3 will become tighter as the depth of the first limit fixing groove 21 is inserted. In this technical solution, the groove structure of the first limit fixing groove 21 can be found in the attached manual. Figure 2 And the instruction manual Figure 7 The groove structure that is wide at the top and narrow at the bottom can make the negative pressure chamber 3 installed more securely.

[0035] Furthermore, a second limiting fixing groove 22 facing downward is formed on the circumferential side of the cover body 2, and the second limiting fixing groove 22 corresponds to the upper edge of the side wall of the cylinder body 1. The cover body 2 can be fixed on the cylinder body 1 through the second limiting fixing groove 22. In the present technical solution, the cover body 2 is also fixed on the cylinder body 1 through the groove structure, and the installation is firm and stable.

[0036] Furthermore, the cover body 2 has a sunken bottom surface, and its bottom surface is lower than the upper edge of the side wall of the cylinder body 1, forming a water storage space. A drainage hole 23 is provided on the bottom surface of the cover body 2, and water overflowing from the cover body 2 can flow back into the cylinder body 1 through the drainage hole 23. During the use of the negative pressure fish tank, water overflow is inevitable. For the sake of cleanliness, the bottom surface of the cover body 2 is slightly sunken to form a water storage space, and excess water can be drained through the drainage hole 23. It is worth noting that when the water is not drained, the drainage hole can also be used to insert an oxygenation channel and install decorative lamps, and can be flexibly adapted according to actual needs.

[0037] Furthermore, a receiving edge 11 is horizontally extended outward from the upper edge of the side wall of the cylinder body 1, and the receiving edge 11 abuts against the bottom surface of the second limiting fixing groove 22. In the present technical solution, the width of the receiving edge 11 is wider than the thickness of the side wall, which is more convenient and more stable when loading and unloading with the second limiting fixing groove 22.

[0038] Furthermore, handles 12 are provided at both ends of the cylinder body 1, and a handle notch 24 is provided at the position corresponding to the handle 12 in the second limiting fixing groove 22. In the present technical solution, the handle 12 is used to carry the fish tank, and the handle notch 24 can play a certain fixing role on the cover body 2.

[0039] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A negative pressure fish tank, characterized in that: The invention comprises a cylinder body (1), a cover body (2) and a transparent negative pressure cavity (3); the cylinder body (1) and the cover body (2) are detachably connected; a water passage (20) is provided in the middle of the cover body (2); and a sealing structure for blocking the lower edge of the negative pressure cavity (3) is provided on the cover body (2).

2. The negative pressure fish tank according to claim 1, characterized in that: The sealing structure is a first limiting fixing groove (21) corresponding to the lower edge of the negative pressure cavity (3), and the negative pressure cavity (3) can be fastened to the cover body (2) via the first limiting fixing groove (21).

3. The negative pressure fish tank according to claim 2, characterized in that: The inner side wall of the first limiting fixing groove (21) is inclined outwards, and is wide at the top and narrow at the bottom. The lower edge of the negative pressure cavity (3) becomes tighter as the depth of the cavity (21) increases.

4. The negative pressure fish tank according to claim 2, characterized in that: An "L"-shaped edge is formed on the lower edge of the negative pressure cavity (3), thereby increasing the contact area with the first limiting fixing groove (21).

5. The negative pressure fish tank according to any one of claims 1 to 4, characterized in that: A second limiting fixing groove (22) facing downward is formed on the peripheral side of the cover body (2), the second limiting fixing groove (22) corresponding to the upper edge of the side wall of the cylinder body (1), and the cover body (2) can be fixed on the cylinder body (1) through the second limiting fixing groove (22).

6. The negative pressure fish tank according to claim 5, characterized in that: The cover body (2) is a sunken bottom surface, the bottom surface of which is lower than the upper edge of the side wall of the cylinder body (1), forming a water storage space.

7. The negative pressure fish tank according to claim 6, characterized in that: A drainage hole (23) is provided on the bottom surface of the cover body (2), and water overflowing from the cover body (2) can flow back into the cylinder body (1) through the drainage hole (23).

8. The negative pressure fish tank according to claim 5, characterized in that: A receiving edge (11) extends horizontally outward from the upper edge of the side wall of the cylinder body (1), and the receiving edge (11) abuts against the bottom surface of the second limiting fixing groove (22).

9. The negative pressure fish tank according to claim 8, characterized in that: Handles (12) are provided at both ends of the cylinder body (1).

10. The negative pressure fish tank according to claim 9, characterized in that: The second limiting fixing groove (22) is provided with a handle notch (24) at a position corresponding to the handle (12).

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