Hydrochloric acid tank with tank opening sealing structure

Abstract

The utility model relates to the technical field of hydrochloric acid tanks, and discloses a hydrochloric acid tank with a tank opening sealing structure, which comprises a tank body, a connecting pipe is arranged on the upper side of the tank body, the inside of the connecting pipe is communicated with the tank body, an upper cover body is arranged on the upper side of the connecting pipe, and the lower surface of the upper cover body is fixedly connected with a lower cover body. A threaded block is rotatably connected to the lower surface of the lower cover body, a threaded groove is formed in the inner wall of the connecting pipe, the threaded block is in threaded connection with the threaded groove, a first driving rod is fixedly connected to the upper surface of the threaded block, the upper end of the first driving rod movably penetrates out of the upper cover body, a groove is formed in the inner wall of the connecting pipe, and primary sealing is achieved through cooperation of the threaded block and the threaded groove. Then the sealing structure is fixed through the clamping blocks, the situation that the upper cover body moves or loosens is prevented as much as possible, then hydrochloric acid in the hydrochloric acid tank is prevented from leaking, the concentration of the hydrochloric acid and the product quality are improved, and the sealing performance and stability of the tank opening of the tank body are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrochloric acid tanks, in particular to a hydrochloric acid tank with a tank mouth sealing structure. Background Art

[0002] Hydrochloric acid is an aqueous solution of hydrogen chloride and has a wide range of industrial uses. Hydrochloric acid is a colorless, transparent liquid with a strong pungent odor and is highly corrosive. Concentrated hydrochloric acid is extremely volatile, and a hydrochloric acid storage tank is a tank specifically used to hold hydrochloric acid, sulfuric acid and other highly corrosive substances.

[0003] Some existing hydrochloric acid tanks are usually transported by vehicle bodies. If there is a bump during transportation that causes the vehicle body to vibrate, the upper cover of the hydrochloric acid tank is very likely to have a gap, or even fall off the tank body. The highly volatile hydrochloric acid produces acid mist and overflows from the tank mouth, causing environmental pollution. At the same time, if the hydrochloric acid inside the hydrochloric acid tank leaks, it will also reduce the concentration of hydrochloric acid and affect the product quality of the hydrochloric acid. It has low practicality and low safety. In view of this, we propose a hydrochloric acid tank with a tank mouth sealing structure to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a hydrochloric acid tank with a tank mouth sealing structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a hydrochloric acid tank with a tank mouth sealing structure, comprising a tank body, a connecting pipe is arranged on the upper side of the tank body, the interior of the connecting pipe is connected with the tank body, an upper cover body is arranged on the upper side of the connecting pipe, the lower surface of the upper cover body is fixedly connected with the lower cover body, the lower surface of the lower cover body is rotatably connected with a threaded block, the inner wall of the connecting pipe is provided with a threaded groove, the threaded block and the threaded groove are threadedly connected, the upper surface of the threaded block is fixedly connected with a first driving rod, the upper end of the first driving rod movably passes through the upper cover body, the inner wall of the connecting pipe is provided with a groove, the groove and the lower cover body are adapted, the two side surfaces of the lower cover body are provided with sliding grooves, the interiors of the two sliding grooves are slidably connected with a card block, the shape of the card block is trapezoidal, the inner wall of the groove is provided with a card groove, the card groove and the card block are adapted, a sealing gasket is arranged on the bottom wall of the card groove, a first cavity is provided inside the lower cover body, the first cavity is connected with the sliding groove, and a driving component is arranged inside the first cavity.

[0006] Preferably, the driving assembly includes a connecting ring, which is rotatably connected to the top wall of the first cavity, the upper end of the connecting ring rotates to pass through the upper cover body, the lower end of the connecting ring is fixedly connected to a cam, the arc surface of the cam is provided with an arc-shaped ball groove, the arc-shaped ball groove surrounds the outer surface of the cam, a movable ball is movably arranged inside the arc-shaped ball groove, the outer surface of the movable ball is fixedly connected to a connecting rod, and the connecting rod and the block are fixedly connected.

[0007] Preferably, a second cavity is opened inside the connecting ring, a second driving rod is arranged inside the second cavity, an upper end of the second driving rod movably passes through the connecting ring, and the second driving rod is movably sleeved on the outside of the first driving rod.

[0008] Preferably, a fixed plate is provided inside the second cavity, and the fixed plate is sleeved on the outer surface of the second driving rod. The upper surface of the fixed plate is fixedly connected with a first tooth, and the top wall of the second cavity is fixedly connected with a second tooth. The first tooth and the second tooth are adapted to each other, and a spring is fixedly connected between the bottom wall of the second cavity and the lower surface of the fixed plate, and the top end of the first driving rod is located on the upper side of the top end of the second driving rod.

[0009] Preferably, the top wall of the connecting pipe and the bottom wall of the groove are both provided with annular sealing grooves, and the lower surfaces of the upper cover body and the lower cover body are fixedly connected with annular sealing gaskets, and the two annular sealing gaskets are matched with the two annular sealing grooves.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model realizes initial sealing by the cooperation of the thread block and the thread groove, and then fixes the sealing structure by the clamping block and the clamping block, thereby preventing the upper cover body from moving or loosening as much as possible, thereby avoiding the leakage of hydrochloric acid inside the hydrochloric acid tank, improving the concentration of hydrochloric acid and the quality of the product, and ensuring the sealing and stability of the tank body and the tank mouth. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a hydrochloric acid tank with a tank mouth sealing structure according to the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the upper cover body of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the connecting pipe of the utility model;

[0015] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0016] Figure 5 It is a structural schematic diagram of the cam of the utility model;

[0017] Figure 6 It is a schematic cross-sectional structure diagram of the connecting ring of the utility model.

[0018] In the figure: 1, tank body; 2, connecting pipe; 3, upper cover body; 4, lower cover body; 5, thread block; 6, thread groove; 7, groove; 8, sliding groove; 9, clamping block; 10, clamping groove; 11, sealing gasket; 12, first cavity; 13, first driving rod; 14, cam; 15, arc ball groove; 16, movable ball; 17, connecting rod; 18, connecting ring; 19, second cavity; 20, second driving rod; 21, fixed disk; 22, first clamping tooth; 23, second clamping tooth; 24, spring; 25, annular sealing gasket; 26, annular sealing groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-6As shown, a hydrochloric acid tank with a tank mouth sealing structure includes a tank body 1, a connecting pipe 2 is arranged on the upper side of the tank body 1, the interior of the connecting pipe 2 is connected to the tank body 1, an upper cover body 3 is arranged on the upper side of the connecting pipe 2, the lower surface of the upper cover body 3 is fixedly connected to the lower cover body 4, the lower surface of the lower cover body 4 is rotatably connected to a threaded block 5, the inner wall of the connecting pipe 2 is provided with a threaded groove 6, the threaded block 5 and the threaded groove 6 are threadedly connected, the upper surface of the threaded block 5 is fixedly connected to a first driving rod 13, the upper end of the first driving rod 13 movably passes through the upper cover body 3, the inner wall of the connecting pipe 2 is provided with a groove 7, the groove 7 and The lower cover body 4 is adapted, and sliding grooves 8 are provided on both sides of the lower cover body 4. Blocks 9 are slidably connected inside the two sliding grooves 8. The shape of the block 9 is trapezoidal. A slot 10 is provided on the inner wall of the groove 7. The slot 10 and the block 9 are adapted. A sealing gasket 11 is provided on the bottom wall of the slot 10. A first cavity 12 is provided inside the lower cover body 4. The first cavity 12 is connected to the sliding groove 8. A driving component is provided inside the first cavity 12. The staff places the upper cover body 3 on the upper side of the connecting pipe 2. At this time, the lower cover body 4 will slide into the interior of the groove 7, and then the staff turns The first driving rod 13 is moved. Since the thread block 5 and the thread groove 6 are threadedly connected, the rotation of the first driving rod 13 will drive the thread block 5 to rotate, and finally the upper cover body 3, the lower cover body 4 and the thread block 5 are synchronously lowered. Since the thread block 5 and the lower cover body 4 are rotationally connected, the thread block 5 will not drive the lower cover body 4 to rotate. Finally, the first sealing is achieved through the cooperation of the thread block 5 and the thread groove 6. Subsequently, the staff operates the driving assembly to make the two clamping blocks 9 move inside the two sliding grooves 8 respectively. When the sliding groove 8 and the clamping groove 10 are aligned, the clamping block 9 will slide into the clamping groove 10, the inclined surface of the block 9 will contact the sealing gasket 11, and the sealing gasket 11 will be squeezed when the block 9 slides into the slot 10, finally the lower cover 4 is fixed and the slot 10 is sealed. The above structure ensures the sealing and stability of the tank mouth of the tank body 1, and the initial sealing is achieved by the cooperation of the threaded block 5 and the threaded groove 6, and then the sealing structure is fixed by the blocks 9 and 10, so as to prevent the upper cover 3 from moving or loosening as much as possible, thereby avoiding the leakage of hydrochloric acid inside the hydrochloric acid tank, and improving the concentration of hydrochloric acid and the quality of the product.

[0021] Furthermore, the driving assembly includes a connecting ring 18, which is rotatably connected to the top wall of the first cavity 12, and the upper end of the connecting ring 18 rotates to pass through the upper cover body 3. The lower end of the connecting ring 18 is fixedly connected to a cam 14, and the arc surface of the cam 14 is provided with an arc-shaped ball groove 15, and the arc-shaped ball groove 15 surrounds the outer surface of the cam 14. An active ball 16 is movably arranged inside the arc-shaped ball groove 15, and a connecting rod 17 is fixedly connected to the outer surface of the active ball 16. The connecting rod 17 and the block 9 are fixedly connected, and the rotation of the connecting ring 18 drives the rotation of the cam 14, and the rotation of the cam 14 causes the two connecting rods 17 to move to both sides. At this time, the active ball 16 will move inside the arc-shaped ball groove 15, and finally the block 9 can slide inside the sliding groove 8, thereby fixing the upper cover body 3.

[0022] Furthermore, a second cavity 19 is provided inside the connecting collar 18, and a second driving rod 20 is provided inside the second cavity 19. The upper end of the second driving rod 20 movably passes through the connecting collar 18, and the second driving rod 20 is movably sleeved on the outside of the first driving rod 13. The top end of the first driving rod 13 is located on the upper side of the top end of the second driving rod 20. A fixed disk 21 is provided inside the second cavity 19, and the fixed disk 21 is sleeved on the outer surface of the second driving rod 20. The upper surface of the fixed disk 21 is fixedly connected with a first latch tooth 22, and the top wall of the second cavity 19 is fixedly connected with a second latch tooth 23. The first latch tooth 22 and the second latch tooth 23 are adapted to each other. A spring 24 is fixedly connected between the bottom wall of the second cavity 19 and the lower surface of the fixed disk 21. When the staff pulls the second driving rod 20 upwards, the spring 24 is stretched, at this time, the second driving rod 20 will slide outside the first driving rod 13, and the movement of the second driving rod 20 will drive the fixed plate 21 to move inside the second cavity 19, so that the first latch tooth 22 will be staggered and engaged with the second latch tooth 23, and the subsequent staff will continue to rotate the second driving rod 20, and the rotation of the second driving rod 20 can drive the rotation of the connecting ring 18, because the connecting ring 18 and the cam 14 are fixedly connected, and thus the rotation of the cam 14 will be driven, and the second driving rod 20 will be reset by relying on the elastic force of the spring 24 itself, so as to realize that the rotation of the second driving rod 20 cannot drive the rotation of the connecting ring 18, and the safety of the device is further improved by the above structure, and the possibility of accidental touch is avoided as much as possible, thereby further improving the stability of the fixation of the upper cover body 3.

[0023] Furthermore, an annular sealing groove 26 is provided on the top wall of the connecting tube 2 and the bottom wall of the groove 7, and annular sealing gaskets 25 are fixedly connected to the lower surfaces of the upper cover body 3 and the lower cover body 4, and the two annular sealing gaskets 25 and the two annular sealing grooves 26 are matched with each other. Through the arrangement of the two annular sealing gaskets 25 and the annular sealing grooves 26, the sealing performance of the upper cover body 3 to the connecting tube 2 and the sealing performance of the lower cover body 4 to the groove 7 are further improved, thereby ensuring the sealing performance of the tank mouth.

[0024] Working principle: the staff places the upper cover body 3 on the upper side of the connecting pipe 2, at which time the lower cover body 4 will slide into the inside of the groove 7, and then the staff rotates the first driving rod 13. Because the threaded block 5 and the threaded groove 6 are threadedly connected, the rotation of the first driving rod 13 will drive the threaded block 5 to rotate, and finally the upper cover body 3, the lower cover body 4 and the threaded block 5 will be synchronously lowered. Because the threaded block 5 and the lower cover body 4 are rotationally connected, the threaded block 5 will not drive the lower cover body 4 to rotate, and finally the first sealing is achieved through the cooperation of the threaded block 5 and the threaded groove 6. Subsequently, the staff operates the driving assembly to make the two clamping blocks 9 move inside the two sliding grooves 8 respectively. When the sliding groove 8 and the clamping groove 10 are aligned, the clamping block 9 will slide into the inside of the clamping groove 10. At this time, the inclined surface of the clamping block 9 will contact the sealing gasket 11, and the sealing gasket 11 will be squeezed when the clamping block 9 slides into the inside of the clamping groove 10, thereby finally fixing the lower cover body 4 and sealing the clamping groove 10.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrochloric acid tank with a tank mouth sealing structure, comprising a tank body (1), characterized in that: A connecting pipe (2) is arranged on the upper side of the tank body (1), the interior of the connecting pipe (2) is connected to the tank body (1), an upper cover body (3) is arranged on the upper side of the connecting pipe (2), the lower surface of the upper cover body (3) is fixedly connected to the lower cover body (4), the lower surface of the lower cover body (4) is rotatably connected to a threaded block (5), a threaded groove (6) is provided on the inner wall of the connecting pipe (2), the threaded block (5) and the threaded groove (6) are threadedly connected, a first driving rod (13) is fixedly connected to the upper surface of the threaded block (5), the upper end of the first driving rod (13) movably passes through the upper cover body (3), and the connecting pipe (2) is fixedly connected to the upper surface of the connecting pipe (2). A groove (7) is provided on the inner wall, and the groove (7) is matched with the lower cover body (4). Sliding grooves (8) are provided on both side surfaces of the lower cover body (4). Blocks (9) are slidably connected inside the two sliding grooves (8). The block (9) is in a trapezoidal shape. A clamping groove (10) is provided on the inner wall of the groove (7). The clamping groove (10) is matched with the block (9). A sealing gasket (11) is provided on the bottom wall of the clamping groove (10). A first cavity (12) is provided inside the lower cover body (4). The first cavity (12) is connected with the sliding groove (8), and a driving component is provided inside the first cavity (12).

2. The hydrochloric acid tank with a tank mouth sealing structure according to claim 1, characterized in that: The driving assembly comprises a connecting collar (18), the connecting collar (18) and the top wall of the first cavity (12) are rotatably connected, the upper end of the connecting collar (18) is rotatably passed through the upper cover body (3), the lower end of the connecting collar (18) is fixedly connected with a cam (14), the arc surface of the cam (14) is provided with an arc-shaped ball groove (15), and the arc-shaped ball groove (15) surrounds the outer surface of the cam (14).

3. The hydrochloric acid tank with a tank mouth sealing structure according to claim 2, characterized in that: A movable ball (16) is movably arranged inside the arc-shaped ball groove (15), a connecting rod (17) is fixedly connected to the outer surface of the movable ball (16), and the connecting rod (17) and the clamping block (9) are fixedly connected.

4. The hydrochloric acid tank with a tank mouth sealing structure according to claim 2, characterized in that: A second cavity (19) is provided inside the connecting ring (18), a second driving rod (20) is arranged inside the second cavity (19), the upper end of the second driving rod (20) movably passes through the connecting ring (18), and the second driving rod (20) is movably sleeved outside the first driving rod (13).

5. The hydrochloric acid tank with a tank mouth sealing structure according to claim 4, characterized in that: A fixed disk (21) is arranged inside the second cavity (19), the fixed disk (21) is sleeved on the outer surface of the second driving rod (20), the upper surface of the fixed disk (21) is fixedly connected with a first latching tooth (22), the top wall of the second cavity (19) is fixedly connected with a second latching tooth (23), the first latching tooth (22) and the second latching tooth (23) are matched, and a spring (24) is fixedly connected between the bottom wall of the second cavity (19) and the lower surface of the fixed disk (21).

6. The hydrochloric acid tank with a tank mouth sealing structure according to claim 5, characterized in that: The top end of the first driving rod (13) is located above the top end of the second driving rod (20).

7. The hydrochloric acid tank with a tank mouth sealing structure according to claim 1, characterized in that: The top wall of the connecting pipe (2) and the bottom wall of the groove (7) are both provided with an annular sealing groove (26), and the lower surfaces of the upper cover body (3) and the lower cover body (4) are both fixedly connected with an annular sealing gasket (25).

8. The hydrochloric acid tank with a tank mouth sealing structure according to claim 7, characterized in that: The two annular sealing pads (25) are matched with the two annular sealing grooves (26).

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