Anti-overflow bottle opening structure of large-capacity plastic container

Abstract

The utility model discloses an anti-overflow bottle opening structure of a large-capacity plastic container, and relates to the technical field of plastic containers, the anti-overflow bottle opening structure comprises a plastic container bottle, the top of the plastic container bottle is provided with a first pipe opening, an anti-overflow assembly is arranged outside the first pipe opening and used for preventing solution from overflowing, the anti-overflow assembly comprises a liquid injection pipe, and the liquid injection pipe is provided with a liquid outlet. And the position, close to the left side, of the outer wall of the liquid injection pipe fixedly communicates with a connecting pipe, and a piston is movably arranged on the inner wall of the liquid injection pipe. According to the anti-overflow bottle opening structure of the large-capacity plastic container, along with rising of the liquid level in the plastic container, a solution can make contact with the floating block, under the action of buoyancy, the liquid pushes the floating block to move upwards, the piston is made to move upwards synchronously through the connecting rod, and when the outer wall of the piston covers the end opening of the connecting pipe, the floating block moves upwards synchronously; therefore, the liquid cannot enter the connecting pipe from the liquid injection pipe any more, the function of stopping filling is achieved, and the problem that the solution overflows due to excessive filling is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic containers, in particular to an anti-overflow bottle mouth structure of a large-capacity plastic container. Background Art

[0002] Large-capacity plastic containers are widely used in many industries and fields, including the food and beverage industry, chemical and liquid storage, industrial use, etc., and are usually made of durable plastic to withstand weight and maintain durability.

[0003] In the prior art, for example, Chinese patent number: CN210392024U discloses a large-capacity automatic stacking hot-filling transparent plastic container that is convenient to carry, which includes: a plastic container body, the plastic container body is roughly cubic, and is composed of an upper part with a filling port and a handle, a lower part with a hand grip, and a roughly cubic part extending between the upper part and the lower part. The filling port of the upper part is located in an inner groove 1 flush with the top of the plastic container, and a thread is provided on the filling port. The handle of the upper part is composed of a handle and an inner groove 2; the lower part with a hand grip is also provided with an inner groove 3, and hand grips are provided on two opposite groove walls of the inner groove 3; the roughly cubic part is the main containing part of the plastic container, and is provided with decorative textures to increase the aesthetics and recognition of the plastic container. Through the transparent plastic container of the utility model, the processing and molding is convenient, the use is time-saving and labor-saving, and the automatic stacking function can be realized. The upper and lower layers of plastic containers are nested with each other to increase the stability of the stacking.

[0004] In the above patent, when the plastic container is filled with solution, it is necessary to connect the bottle mouth of the container with the filling tube. However, during the filling process, if the liquid in the container is almost full, if the filling cannot be stopped in time, the liquid will easily overflow from the bottle mouth, thereby causing a waste of resources. For this reason, the utility model provides an anti-overflow bottle mouth structure for a large-capacity plastic container. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an anti-overflow bottle mouth structure for a large-capacity plastic container, which solves the problem that during the filling process, if the liquid in the container is almost full and the filling cannot be stopped in time, the liquid will easily overflow from the bottle mouth, thereby causing a waste of resources.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: an anti-overflow bottle mouth structure of a large-capacity plastic container, comprising a plastic container bottle, a first nozzle is arranged on the top of the plastic container bottle, and an anti-overflow component is arranged outside the first nozzle for preventing the solution from overflowing;

[0007] The anti-overflow component includes an injection tube, an outer wall of the injection tube is fixedly connected to a connecting tube near the left side, an inner wall of the injection tube is movably provided with a piston, an outer wall of the piston is provided with a limiting groove, a connecting rod is fixedly connected to the bottom end of the piston, a floating block is fixedly connected to the bottom end of the connecting rod, an inner wall of the injection tube is fixedly connected to a support plate at a position below the piston, a guide hole is penetrated through the end surface of the support plate, and the connecting rod sleeve is movably provided on the inner wall of the guide hole.

[0008] Preferably, a cylindrical hole is penetrated through the outer wall of the injection tube near the left side, and a movable rod is movably provided on the inner wall of the cylindrical hole. The right end of the movable rod is located inside the injection tube, and the left end of the movable rod is located outside the injection tube. A spring is sleeved on the outside of the injection tube, and the right end of the spring is fixedly connected to the outer wall of the injection tube. A fixing plate is fixedly connected between the movable rod and the left end of the spring, and a pull block is fixedly connected to the left end of the fixing plate.

[0009] Preferably, a first pipe opening is fixedly connected to a position near the middle of the top end of the plastic container bottle, and a second pipe opening is fixedly connected to a position near the right end of the top end of the plastic container bottle.

[0010] Preferably, a first boss is fixedly connected to the outer wall of the injection tube near the bottom, and a first threaded pipe sleeve is sleeved between the injection tube and the outer wall of the first boss, the inner end surface of the first threaded pipe sleeve contacts the top surface of the first boss, the first threaded pipe sleeve is threadedly sleeved on the outer wall of the second pipe mouth, and the bottom surface of the first boss contacts the top surface of the second pipe mouth.

[0011] Preferably, a second boss is fixedly connected to the outer wall of the connecting tube near the bottom, a second threaded pipe sleeve is sleeved between the outer wall of the connecting tube and the second boss, an inner end surface of the second threaded pipe sleeve contacts the top surface of the second boss, the second threaded pipe sleeve is threadedly sleeved on the outer wall of the first pipe opening, and the bottom surface of the second boss contacts the top surface of the first pipe opening.

[0012] Preferably, a liquid outlet pipe is fixedly connected to the top of the plastic container bottle near the left side, and a sealing cap is threadedly sleeved on the outer wall of the liquid outlet pipe near the end.

[0013] Beneficial Effects

[0014] The utility model provides an anti-overflow bottle mouth structure for a large-capacity plastic container. Compared with the prior art, it has the following beneficial effects:

[0015] (1) The anti-overflow bottle mouth structure of the large-capacity plastic container is that as the liquid level in the plastic container bottle rises, the solution will come into contact with the float. Under the action of buoyancy, the liquid pushes the float upward and causes the piston to move upward synchronously through the connecting rod. When the outer wall of the piston covers the port of the connecting tube, the liquid can no longer enter the connecting tube from the injection tube, which stops the filling and avoids the problem of overflow caused by excessive filling of the solution.

[0016] (2) The anti-overflow bottle mouth structure of the large-capacity plastic container is that when the piston rises, its outer wall will squeeze the movable rod. When the movable rod is squeezed, it will slide outward until it corresponds to the limit groove. Then, under the action of the spring contraction force, the fixed plate pushes the movable rod to move inward until the movable rod is inserted into the limit groove. At this time, the piston is fixed and will not move downward, thereby preventing the liquid level in the plastic container bottle from lowering and causing the piston to be unable to seal and cover the port of the connecting tube, thereby preventing the plastic container bottle from tipping over and causing the solution to leak out, thereby improving the anti-overflow effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional appearance schematic diagram of the utility model;

[0018] Figure 2 This is a three-dimensional appearance schematic diagram of the plastic container bottle of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional appearance of the overflow prevention component of the utility model;

[0020] Figure 4 For this utility model Figure 3 A in the enlarged view;

[0021] Figure 5 This is a three-dimensional appearance diagram of the piston of the utility model;

[0022] Figure 6 It is a schematic diagram of a partially cutaway three-dimensional appearance of the overflow prevention component of the utility model.

[0023] In the figure: 1, plastic container bottle; 11, first pipe mouth; 12, second pipe mouth; 13, liquid outlet pipe; 14, sealing cover; 2, overflow prevention component; 201, liquid injection pipe; 202, first boss; 203, first threaded pipe sleeve; 204, connecting pipe; 205, second boss; 206, second threaded pipe sleeve; 207, support plate; 208, guide hole; 209, cylindrical hole; 210, movable rod; 211, spring; 212, fixing plate; 213, pull block; 214, piston; 215, limit groove; 216, connecting rod; 217, floating block. DETAILED DESCRIPTION

[0024] 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.

[0025] The utility model provides two technical solutions:

[0026] Figure 1-Figure 6 The first embodiment is shown: an anti-overflow bottle mouth structure of a large-capacity plastic container, comprising a plastic container bottle 1, a first pipe mouth 11 is arranged on the top of the plastic container bottle 1, and an anti-overflow component 2 is arranged outside the first pipe mouth 11 for preventing the solution from overflowing;

[0027] The anti-overflow component 2 includes a liquid injection pipe 201, the outer wall of the liquid injection pipe 201 is fixedly connected to a connecting pipe 204 near the left side, the inner wall of the liquid injection pipe 201 is movably provided with a piston 214, the outer wall of the piston 214 is provided with a limiting groove 215, the bottom end of the piston 214 is fixedly connected to a connecting rod 216, the bottom end of the connecting rod 216 is fixedly connected to a floating block 217, the inner wall of the liquid injection pipe 201 is located below the piston 214 and is fixedly connected to a support plate 207, the end surface of the support plate 207 is penetrated by a guide hole 208, The connecting rod 216 is movably arranged on the inner wall of the guide hole 208. As the liquid level in the plastic container bottle 1 rises, the solution will come into contact with the float 217. Under the action of buoyancy, the liquid pushes the float 217 to move upward, and the piston 214 is synchronously moved upward through the connecting rod 216. When the outer wall of the piston 214 covers the port of the connecting tube 204, the liquid can no longer enter the connecting tube 204 from the injection tube 201, which stops the filling and avoids the problem of overflow caused by excessive filling of the solution.

[0028] A cylindrical hole 209 is formed through the outer wall of the injection tube 201 near the left side, and a movable rod 210 is movably provided on the inner wall of the cylindrical hole 209. The right end of the movable rod 210 is located inside the injection tube 201, and the left end of the movable rod 210 is located outside the injection tube 201. A spring 211 is sleeved on the outside of the injection tube 201, and the right end of the spring 211 is fixedly connected to the outer wall of the injection tube 201. A fixed plate 212 is fixedly connected between the movable rod 210 and the left end of the spring 211, and a pull block 213 is fixedly connected to the left end of the fixed plate 212. When the piston 214 rises, its outer wall The movable rod 210 will be squeezed. When the movable rod 210 is subjected to the squeezing force, it will slide outward until it corresponds to the limiting groove 215. Then, under the action of the contraction force of the spring 211, the fixed plate 212 pushes the movable rod 210 to move inward until the movable rod 210 is inserted into the limiting groove 215. At this time, the piston 214 is fixed and will not move downward, thereby preventing the liquid level in the plastic container bottle 1 from lowering and causing the piston 214 to be unable to seal and cover the port of the connecting pipe 204, thereby preventing the plastic container bottle 1 from tipping over and causing the solution to leak out, thereby improving the anti-overflow effect.

[0029] Figure 1-Figure 6 A second embodiment is shown, which mainly differs from the first embodiment in that a first pipe opening 11 is fixedly connected to the top of the plastic container bottle 1 near the middle, and a second pipe opening 12 is fixedly connected to the top of the plastic container bottle 1 near the right side.

[0030] A first boss 202 is fixedly connected to the outer wall of the injection tube 201 near the bottom, and a first threaded sleeve 203 is sleeved between the outer walls of the injection tube 201 and the first boss 202. The inner end surface of the first threaded sleeve 203 contacts the top surface of the first boss 202. The first threaded sleeve 203 is threadedly sleeved on the outer wall of the second pipe opening 12, and the bottom surface of the first boss 202 contacts the top surface of the second pipe opening 12. The first threaded sleeve 203 is connected to the second pipe opening 12 through the cooperative connection with the second pipe opening 12, which facilitates the disassembly and assembly of the injection tube 201. The first boss 202 serves to limit the first threaded sleeve 203 to prevent it from falling off the injection tube 201.

[0031] A second boss 205 is fixedly connected to the outer wall of the connecting tube 204 near the bottom, and a second threaded sleeve 206 is sleeved between the outer walls of the connecting tube 204 and the second boss 205. The inner end surface of the second threaded sleeve 206 contacts the top surface of the second boss 205. The second threaded sleeve 206 is threadedly sleeved on the outer wall of the first pipe opening 11, and the bottom surface of the second boss 205 contacts the top surface of the first pipe opening 11. The second threaded sleeve 206 is connected to the first pipe opening 11 through the matching connection, which facilitates the disassembly and assembly of the connecting tube 204. The second boss 205 plays a role in limiting the first threaded sleeve 203 to prevent the second threaded sleeve 206 from falling off the connecting tube 204. By installing and removing the first threaded sleeve 203 and the second threaded sleeve 206 with the second pipe opening 12 and the first pipe opening 11 respectively, the overflow prevention component 2 can be disassembled and assembled from the plastic container bottle 1, which is convenient for later maintenance work.

[0032] A liquid outlet pipe 13 is fixedly connected to the top of the plastic container bottle 1 near the left side, and a sealing cap 14 is threadedly sleeved on the outer wall of the liquid outlet pipe 13 near the end, so that the solution in the plastic container bottle 1 can be easily poured out for use through the liquid outlet pipe 13.

[0033] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] During filling, the injection tube 201 is connected to the external filling tube. When the solution passes through the injection tube 201, it enters the interior of the plastic container bottle 1 through the connecting tube 204 and the second nozzle 12 in sequence. At this time, as the liquid level rises, the solution will come into contact with the floating block 217. Under the action of buoyancy, the liquid pushes the floating block 217 to move upward, and the piston 214 is moved upward synchronously through the connecting rod 216. When the outer wall of the piston 214 covers the port of the connecting tube 204, the liquid can no longer enter the connecting tube 204 from the injection tube 201, which stops the filling and avoids the problem of overflow caused by excessive filling of the solution. When the piston 214 rises, its outer wall will squeeze the movable rod 210. When the movable rod 210 is subjected to the squeezing force, it will slide outward until it corresponds to the limiting groove 215 and is tightly closed. Then, under the action of the contraction force of the spring 211, the fixed plate 212 pushes the movable rod 210 to move inward until the movable rod 210 is inserted into the limiting groove 215. At this time, the piston 214 is fixed and will not move downward, thereby preventing the liquid level in the plastic container bottle 1 from lowering and causing the piston 214 to be unable to seal and cover the port of the connecting pipe 204, thereby preventing the plastic container bottle 1 from tipping over and causing the solution to leak out, thereby improving the anti-overflow effect. When the plastic container bottle 1 needs to be filled with solution again, the pull block 213 is manually pulled outward, thereby driving the movable rod 210 to move outward synchronously. At this time, the limit of the movable rod 210 on the piston 214 is released, and under the action of gravity, the piston 214 slides downward to release the covering seal on the port of the connecting pipe 204, so that the solution can be filled again.

[0035] 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.

[0036] 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. An anti-overflow bottle mouth structure for a large-capacity plastic container, comprising a plastic container bottle (1), characterized in that: The top of the plastic container bottle (1) is provided with a first nozzle (11), and the outside of the first nozzle (11) is provided with an anti-overflow component (2) for preventing the solution from overflowing; The anti-overflow component (2) comprises a liquid injection pipe (201), the outer wall of the liquid injection pipe (201) is fixedly connected to a connecting pipe (204) at a position close to the left side, the inner wall of the liquid injection pipe (201) is movably provided with a piston (214), the outer wall of the piston (214) is provided with a limiting groove (215), the bottom end of the piston (214) is fixedly connected to a connecting rod (216), the bottom end of the connecting rod (216) is fixedly connected to a floating block (217), the inner wall of the liquid injection pipe (201) is fixedly connected to a support plate (207) at a position below the piston (214), the end surface of the support plate (207) is penetrated by a guide hole (208), and the connecting rod (216) is movably provided on the inner wall of the guide hole (208).

2. The anti-overflow bottle mouth structure of a large-capacity plastic container according to claim 1, characterized in that: A cylindrical hole (209) is formed through the outer wall of the injection tube (201) near the left side, and a movable rod (210) is movably provided on the inner wall of the cylindrical hole (209). The right end of the movable rod (210) is located inside the injection tube (201), and the left end of the movable rod (210) is located outside the injection tube (201). A spring (211) is sleeved on the outside of the injection tube (201), and the right end of the spring (211) is fixedly connected to the outer wall of the injection tube (201). A fixed plate (212) is fixedly connected between the movable rod (210) and the left end of the spring (211), and a pull block (213) is fixedly connected to the left end of the fixed plate (212).

3. The anti-overflow bottle mouth structure of a large-capacity plastic container according to claim 1, characterized in that: A first pipe opening (11) is fixedly connected to a position near the middle of the top end of the plastic container bottle (1), and a second pipe opening (12) is fixedly connected to a position near the right end of the top end of the plastic container bottle (1).

4. The anti-overflow bottle mouth structure of a large-capacity plastic container according to claim 1, characterized in that: A first boss (202) is fixedly connected to the outer wall of the injection tube (201) near the bottom, and a first threaded sleeve (203) is sleeved between the outer wall of the injection tube (201) and the first boss (202), the inner end surface of the first threaded sleeve (203) is in contact with the top surface of the first boss (202), the first threaded sleeve (203) is threadedly sleeved on the outer wall of the second pipe opening (12), and the bottom surface of the first boss (202) is in contact with the top surface of the second pipe opening (12).

5. The anti-overflow bottle mouth structure of a large-capacity plastic container according to claim 1, characterized in that: A second boss (205) is fixedly connected to the outer wall of the connecting tube (204) near the bottom, and a second threaded sleeve (206) is sleeved between the outer walls of the connecting tube (204) and the second boss (205), the inner end surface of the second threaded sleeve (206) is in contact with the top surface of the second boss (205), the second threaded sleeve (206) is threadedly sleeved on the outer wall of the first pipe opening (11), and the bottom surface of the second boss (205) is in contact with the top surface of the first pipe opening (11).

6. The anti-overflow bottle mouth structure of a large-capacity plastic container according to claim 1, characterized in that: A liquid outlet pipe (13) is fixedly connected to the top of the plastic container bottle (1) near the left side, and a sealing cap (14) is threadedly sleeved on the outer wall of the liquid outlet pipe (13) near the end.

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