Thin-wall light-weight chemical plastic bottle structure

Abstract

The utility model discloses a thin-wall light-weight chemical plastic bottle structure, which relates to the technical field of chemical plastic bottles and comprises a plastic bottle main body, a protective mechanism is arranged on the upper portion of the plastic bottle main body and used for sealing and decompressing liquid stored in the plastic bottle. The pressure relief assembly comprises a bottle cap installed at a bottle opening of the plastic bottle body in a threaded mode, and an exhaust hole is formed in one side of the upper portion of the bottle cap. Pressure is applied to the rubber plug under the acting force of the spring, so that the rubber plug reaches the end of the pipeline, the pipeline is sealed, and when the pressure in the bottle body is larger than the elastic force of the spring, the pressure in the bottle body is relieved. The rubber plug can move upwards to drive the inner sleeve rod to move upwards, so that a worker detects that the pressure intensity in the bottle is too large, pressure relief operation is conducted on the bottle by opening the pressure relief hole, the worker is reminded that the pressure intensity in the bottle is abnormal, the pressure relief hole is opened in time for pressure relief, bottle body breakage or liquid leakage caused by too large pressure is effectively avoided, and use safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical plastics bottle technical field, concretely is a kind of thin-walled light-weight chemical plastics bottle structure. BACKGROUND

[0002] Chemical plastics bottle refers to the plastic container for containing chemical raw materials, chemical reagents, coatings, solvents, additives and other chemical products, which has the characteristics of chemical corrosion resistance, good sealing, light weight, low cost, etc. It is one of the common packaging forms in the chemical industry.

[0003] Referring to the patent document: patent publication number CN220032709U, patent publication date 2023-11-17, a kind of light-weight bottle is disclosed, comprising: bottle body, the bottle body includes bottle body part and bottle mouth part, the peripheral wall surface of the bottle mouth part is only provided with first thread;Cover, the peripheral wall surface of the cover is only provided with second thread, the second thread and the first thread can be engaged;Shrink label, outer sleeve assembly is assembled on the cover and the bottle body, and can cover at least the connection of the cover and the bottle body. The structure of the bottle mouth part and the cover of the above-mentioned bottle is relatively simple, the weight is relatively light, and through the setting of shrink label, it is beneficial to ensure the safety performance of bottled product.

[0004] Based on the search of patent number, combined with the deficiencies in the prior art:

[0005] When the existing chemical plastics bottle is used to store and transport chemical solvents, the chemical solvents are usually volatile (such as dichloromethane), and are easily affected by shaking, impact and other factors during transportation or storage. High pressure may be generated in the bottle, which may cause the bottle to break or the liquid to leak, causing safety accidents or environmental pollution. However, the existing chemical plastics bottle has a simple structure and lacks pressure warning and pressure relief functions, making it difficult for workers to detect internal pressure abnormalities and perform pressure relief operations. When the worker opens the chemical bottle, it is easy to cause safety hazards, and the transmission of the bottle cap will come into contact with the internal chemical solvent, causing the liquid to flow out along the inner wall of the bottle cap when the bottle cap is unscrewed, which may contaminate the worker's hands and cause chemical burns.

[0006] Therefore, the utility model provides a kind of thin-walled light-weight chemical plastics bottle structure. Utility model content

[0007] To solve the problem that the existing chemical plastics bottle structure is simple and does not set pressure warning and pressure relief device, which may cause installation hazards, and the traditional plastic bottle structure bottle cap may come into contact with the stored liquid, causing the liquid to flow out along the inner wall of the bottle cap when the bottle cap is unscrewed, which may contaminate the worker's hands. The purpose of the utility model is to provide a kind of thin-walled light-weight chemical plastics bottle structure.

[0008] In order to achieve the above object, the utility model discloses a kind of thin-wall light-weight chemical plastics bottle structure, including plastic bottle main body, the upper portion of plastic bottle main body is equipped with protection mechanism, for the liquid stored in plastic bottle is sealed and pressure relief, protection mechanism includes:

[0009] Pressure relief assembly includes the bottle cap of screwing in the bottle mouth of plastic bottle main body, the upper portion of bottle cap is opened and is equipped with exhaust hole, the middle portion of exhaust hole is slidably equipped with pressure relief plug, the inside upper surface of bottle cap is fixedly installed with pipeline, the lower portion of pipeline is slidably equipped with slide rod, the bottom end of slide rod is fixedly installed with rubber plug, the upper portion of pipeline is fixedly installed with outer sleeve, the middle portion of outer sleeve is slidably equipped with inner sleeve, the bottom end of inner sleeve is fixedly installed in the top end middle portion of slide rod, the upper portion of inner sleeve is slidably penetrated bottle cap, the top end of slide rod is fixedly installed with spring, the top end of spring is fixedly installed in the upper portion of pipeline, the lower portion of pipeline is equipped with a plurality of annular array distribution pressure relief holes;

[0010] Sealing assembly is arranged in the middle portion of bottle cap, for sealing treatment is carried out to bottle mouth.

[0011] Preferably, the sealing assembly includes sealing frame fixed in the middle portion of bottle cap, the upper portion of plastic bottle main body is fixedly installed with sealing ring, the bottom end of sealing frame and the top end of sealing ring are in contact with each other, the top end of sealing ring is equipped with mounting groove, the bottom end of sealing frame is fixedly installed with expansion waterstop, and the expansion waterstop is slidably arranged in the inside of mounting groove.

[0012] Preferably, the upper portion of bottle cap is opened and is equipped with liquid discharge port, and the middle portion of liquid discharge port is screwed with sealing plug.

[0013] Preferably, the lower portion of inner sleeve is fixedly installed with limiting ring, and the limiting ring is used in cooperation with outer sleeve.

[0014] Preferably, the outer side of sealing frame is fixedly installed with a plurality of O-shaped sealing rings, and the O-shaped sealing rings are in contact with the inner wall of bottle mouth of plastic bottle main body.

[0015] Preferably, the middle portion of plastic bottle main body is fixedly installed with a plurality of wave-breaker boards distributed at equal intervals, and the middle portion of a plurality of wave-breaker boards is equipped with opening.

[0016] Beneficial effects

[0017] The utility model provides a kind of thin-wall light-weight chemical plastics bottle structure.Compared with prior art, it has the following beneficial effects:

[0018] 1、The application applies pressure to the rubber plug under the force of the spring, so that it reaches the end of the pipeline and seals the pipeline. When the pressure in the bottle is greater than the spring force, the rubber plug can move upward, driving the inner sleeve rod to move upward, so that the staff can detect that the pressure in the bottle is too high, and the pressure relief hole is opened for pressure relief operation, thereby reminding the staff that the pressure in the bottle is abnormal, and timely opening the pressure relief hole for pressure relief, effectively avoiding bottle rupture or liquid leakage due to excessive pressure, and ensuring safety in use.

[0019] 2、The application seals the bottle opening by tightly fitting the sealing frame and the sealing ring, avoids direct contact of the liquid with the bottle cap, avoids that the liquid flows out through the inner wall of the bottle cap when the staff unscrews the bottle cap, avoids corrosion and damage of the chemical solvent to the hands, and improves safety and convenience in use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the utility model.

[0021] Figure 2 It is a structure schematic view of the utility model.

[0022] Figure 3 It is a structure schematic view of the utility model after the sealing assembly is split.

[0023] Figure 4 It is a structure schematic view of the utility model.

[0024] Figure 5 It is a structure schematic view of the utility model.

[0025] In the drawing: 1, plastic bottle main body; 11, wave breaker; 12, opening; 2, protection mechanism; 21, pressure relief assembly; 211, bottle cap; 212, liquid discharge port; 2121, sealing plug; 213, air vent; 2131, pressure relief plug; 214, pipeline; 2141, pressure relief hole; 215, sliding rod; 2151, rubber plug; 216, outer sleeve; 217, spring; 218, inner sleeve; 2181, limiting ring; 22, sealing assembly; 221, sealing frame; 222, O-shaped sealing ring; 223, expansion water stop; 224, sealing ring; 225, mounting groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-5 The utility model provides a technical scheme: a thin -walled light chemical plastics bottle structure of quantity, including plastic bottle main part 1, it adopts high molecular weight polyethylene and nanometer clay composite material quality makes, guarantee high strength and chemical corrosion resistance while, compared with traditional plastic material weight reduces 30%, and has excellent impact resistance, can effectively resist the collision in the transportation process, the upper portion of plastic bottle main part 1 is equipped with protection mechanism 2, is used for sealing and pressure relief to the liquid stored in the plastic bottle, protection mechanism 2 includes:

[0028] Pressure relief assembly 21 includes the bottle cap 211 of screwing in the bottle mouth of plastic bottle main part 1, the top end lateral wall of its bottle cap 211 is higher than the top surface of bottle cap 211, can increase the lateral wall area of bottle cap 211 to facilitate unscrewing, simultaneously, the top surface of bottle cap 211 can be the most outside convex edge as a flat top surface, facilitate mutual stacking between plastic bottle main part 1, the upper portion of bottle cap 211 is equipped with the exhaust hole 213, the middle part of exhaust hole 213 is equipped with the pressure relief plug 2131 of sliding card, the pressure relief plug 2131 adopts the silicone rubber material, its surface is equipped with the anti -skid texture, makes it pressure relief plug 2131 can be in close contact with exhaust hole 213, increase friction, when forcing the pressure relief plug 2131 is pressed into exhaust hole 213, the radial elastic deformation of interference fit is generated, makes the contact surface produce normal pressure, combines material high friction coefficient, forms enough static friction to offset internal pressure, when pulling force exceeds static friction during pressure relief, the pressure relief plug 2131 is pulled out by overcoming friction sliding, so as to realize the sealing of pressure relief plug 2131 and its exhaust hole 213 is connected, will not be due to internal pressure and the pressure relief plug 2131 is lifted, the inner upper surface of bottle cap 211 is fixedly installed with pipeline 214, the lower part of pipeline 214 is equipped with the sliding rod 215 of sliding, the bottom end of sliding rod 215 is fixedly installed with rubber plug 2151, the upper portion of pipeline 214 is fixedly installed with outer sleeve 216, the middle part of outer sleeve 216 is equipped with the inner sleeve 218 of sliding card, the inner wall of outer sleeve 216 is processed inner spline, the outer wall of inner sleeve 218 is processed outer spline, realizes axial sliding and circumferential positioning through the meshing of spline teeth, avoids the rotation condition of inner sleeve 218, the bottom end of inner sleeve 218 is fixedly installed in the top end middle part of sliding rod 215, the upper portion of inner sleeve 218 is equipped with sliding through bottle cap 211, the top end of sliding rod 215 is fixedly installed with spring 217, the top end of spring 217 is fixedly installed in the upper portion of pipeline 214, the lower part of pipeline 214 is equipped with a plurality of annular array distribution pressure relief holes 2141;

[0029] Sealing assembly 22, setting in the middle part of bottle cap 211, is used for sealing treatment to the bottle mouth.

[0030] The sealing assembly 22 comprises a sealing frame 221 fixed in the middle of the bottle cap 211, and the upper portion of the plastic bottle body 1 is fixedly installed with a sealing ring 224, the cross section of the sealing ring 224 is a right-angled trapezoid, the inclined surface is located on the lower side, so as to facilitate pouring out the solvent stored in the plastic bottle body 1, the bottom end of the sealing frame 221 is in contact with the top end of the sealing ring 224, the top end of the sealing ring 224 is provided with a mounting groove 225, and the bottom end of the sealing frame 221 is fixedly installed with an expansion water stop 223, the expansion water stop 223 is slidingly clamped in the inside of the mounting groove 225, the expansion water stop 223 is made of a new type of high-multiplying water-absorbing resin material, has the characteristics of rapid water absorption and expansion, and can quickly complete expansion and form a dense colloid to block the gap after contacting the leaked liquid.

[0031] The upper portion of the bottle cap 211 is provided with a liquid discharge port 212 on one side, and a sealing plug 2121 is threadedly installed in the middle of the liquid discharge port 212, which can be used to pour out the solvent in contact with the bottle cap 211 first by pressure relief, and the head of the sealing plug 2121 is designed as a hexagonal shape, which is convenient for tightening and disassembling with a tool.

[0032] The lower portion of the inner sleeve 218 is fixedly installed with a limiting ring 2181, which is used in cooperation with the outer sleeve 216, and the limiting ring 2181 can limit the inner sleeve 218 to ensure that the inner sleeve 218 cannot rise unlimitedly, thereby protecting the spring 217 from being damaged due to excessive compression caused by unlimited rising.

[0033] A plurality of O-shaped sealing rings 222 are fixedly installed on the outer side of the sealing frame 221, the O-shaped sealing rings 222 are in contact with the inner wall of the bottle mouth of the plastic bottle body 1, the O-shaped sealing rings 222 are made of EPDM rubber, have good weather resistance, water resistance and chemical resistance, and are in close contact with the inside of the bottle mouth of the plastic bottle body 1, thereby achieving further sealing of the plastic bottle body 1.

[0034] A plurality of wave suppression plates 11 are fixedly installed at equal intervals in the middle of the plastic bottle body 1, and the middle of each wave suppression plate 11 is provided with an opening 12, the wave suppression plate 11 can reduce the impact force generated by the solvent stored in the plastic bottle body 1, reduce the pressure generated by excessive shaking, and can provide support and fixation for the plastic bottle body 1, thereby improving the structural strength of the plastic bottle body 1, and the edge of the opening 12 is chamfered to prevent stress concentration, so that it can effectively reduce the impact force generated by the shaking of the liquid in the bottle and ensure the smoothness of the liquid flow.

[0035] Meanwhile, the contents not described in detail in the specification are all prior art known to those skilled in the art.

[0036] When working, the bottle cap 211 can be installed at the bottle opening position of the plastic bottle body 1 through a threaded manner, so that the sealing frame 221 is in close contact with the top end of the sealing ring 224, at this time, the expansion water stop 223 is completely clamped into the inside of the installation groove 225, when the chemical solvent inside leaks, it will first contact the expansion water stop 223, causing the expansion water stop 223 to absorb water in the solvent to expand and form a colloidal blockage gap, so as to avoid the liquid from continuing to leak and contact the bottle cap 211;

[0037] When the chemical solvent (such as dichloromethane commonly used as a paint solvent, paint remover, and pharmaceutical industry) stored in the plastic bottle body 1 is subjected to a severe impact or shaking, the gas phase proportion of the plastic bottle body 1 increases, the gas pressure in the sealed container can quickly rise, thereby extruding the rubber plug 2151 to move upward along the pipeline 214 under the pressure difference, while extruding the spring 217, that is, driving the inner sleeve 218 to move upward, until the top surface of the limiting ring 2181 is in contact with the bottom end of the outer sleeve 216, so that the top end is higher than the upper surface of the bottle cap 211, thereby attracting the attention of the worker, at this time, the rubber plug 2151 is higher than the pressure relief hole 2141 opened in the lower part of the pipeline 214, the worker can pull out the pressure relief plug 2131 in the middle of the exhaust hole 213, and the liquid enters through the pressure relief hole 2141, when it is necessary to remove the bottle cap 211, the sealing plug 2121 threaded on the liquid outlet 212 can be unscrewed, and the overflow liquid can be poured out through the liquid outlet 212, and at the same time, due to the decrease in pressure, the rubber plug 2151 is reset under the elastic force of the spring 217, thereby avoiding the liquid from continuing to flow into the inside of the bottle cap 211 through the pressure relief hole 2141.

[0038] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A thin-walled, lightweight, chemical plastic bottle structure comprising a plastic bottle body (1), characterized in that: The upper portion of the plastic bottle body (1) is provided with a protection mechanism (2) for sealing and pressure relief of the liquid stored in the plastic bottle, and the protection mechanism (2) comprises: The pressure relief assembly (21) comprises a bottle cap (211) threadedly installed on the bottle mouth of the plastic bottle body (1), an exhaust hole (213) is formed on one side of the upper portion of the bottle cap (211), a pressure relief plug (2131) is slidably clamped in the middle portion of the exhaust hole (213), a pipeline (214) is fixedly installed on the inner upper surface of the bottle cap (211), a sliding rod (215) is slidably arranged at the lower portion of the pipeline (214), a rubber plug (2151) is fixedly installed at the bottom end of the sliding rod (215), an outer sleeve (216) is fixedly installed at the upper portion of the pipeline (214), an inner sleeve (218) is slidably clamped in the middle portion of the outer sleeve (216), the bottom end of the inner sleeve (218) is fixedly installed at the top middle portion of the sliding rod (215), the upper portion of the inner sleeve (218) slidably penetrates the bottle cap (211), a spring (217) is fixedly installed at the top end of the sliding rod (215), the top end of the spring (217) is fixedly installed at the upper portion of the pipeline (214), and a plurality of pressure relief holes (2141) arranged in a ring array are formed at the lower portion of the pipeline (214). The sealing assembly (22) is arranged in the middle portion of the bottle cap (211) and is used for sealing the bottle mouth.

2. The thin-walled lightweight chemical plastic bottle structure according to claim 1, characterized in that: The sealing assembly (22) comprises a sealing frame (221) fixedly installed in the middle portion of the bottle cap (211), a sealing ring (224) fixedly installed at the upper portion of the plastic bottle body (1), the bottom end of the sealing frame (221) in contact with the top end of the sealing ring (224), an installation groove (225) formed at the top end of the sealing ring (224), and an expansion water stop strip (223) fixedly installed at the bottom end of the sealing frame (221) and slidably clamped in the inside of the installation groove (225).

3. The thin-walled lightweight chemical plastic bottle structure according to claim 1, characterized in that: An exhaust port (212) is formed on one side of the upper portion of the bottle cap (211), and a sealing plug (2121) is threadedly installed in the middle portion of the exhaust port (212).

4. The thin-walled lightweight chemical plastic bottle structure according to claim 1, characterized in that: The lower portion of the inner sleeve (218) is fixedly installed with a limiting ring (2181) which is used in cooperation with the outer sleeve (216).

5. The thin-walled, lightweight plastic chemical bottle of claim 2, wherein: A plurality of O-shaped sealing rings (222) are fixedly installed on the outer side of the sealing frame (221) and in contact with the inner wall of the bottle mouth of the plastic bottle body (1).

6. The thin-walled, lightweight plastic chemical bottle of claim 1, wherein: A plurality of wave breakers (11) are fixedly installed at the middle portion of the plastic bottle body (1) and arranged at equal intervals, and an opening (12) is formed in the middle portion of each wave breaker (11).

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