Strong-corrosion-resistant double-layer barrier polyethylene blow molding container

Abstract

The utility model relates to the field of blow-molded containers, and discloses a strong-corrosion-resistant double-layer barrier polyethylene blow-molded container which comprises a blow-molded container body, an annular groove is formed in the outer wall of the blow-molded container body, a first sealing groove is formed in the upper surface of the blow-molded container body, and a second sealing groove is formed in the outer wall of the top end of the blow-molded container body. A protection assembly is arranged on the inner wall of the annular groove, a sealing assembly is arranged on the outer wall of the top end of the blow molding container body, the protection assembly comprises a circular ring slidably connected to the inner wall of the annular groove, a hinge block is fixedly connected to the front surface of the circular ring, and a sliding rod is hinged to the inner wall of the right end of the hinge block. According to the blow molding container, through the arranged protection assembly, the outer wall of the blow molding container body can be protected, the external impact force can be buffered, the protection performance of the blow molding container is improved, meanwhile, when the elastic protection shell is impacted, under the cooperation of the circular rings and the balls, the elastic protection shell can rotate to unload force, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the field of blow - molded containers, in particular to a highly corrosion - resistant double - barrier polyethylene blow - molded container. Background Art

[0002] A polyethylene blow - molded container is a container manufactured through a blow - molding process. Polyethylene has good chemical stability, low - temperature resistance, and electrical insulation properties, which enables polyethylene blow - molded containers to be widely used in many fields. In order to improve the highly corrosion - resistant performance of polyethylene blow - molded containers, a multi - layer blow - molding process is used during production to enhance the performance of polyethylene blow - molded containers. Although this method can enhance the highly corrosion - resistant performance inside the blow - molded container, the strength of the outer wall of the polyethylene blow - molded container is not very high and is easily damaged when subjected to external impact forces.

[0003] After retrieval, Chinese Patent Publication No.: CN217806255U discloses an intelligent polyethylene blow - molded container with a heat - preservation structure, including a heat - preservation sleeve. The upper end of the heat - preservation sleeve is fixedly connected with a bottleneck, and the upper end of the bottleneck is connected with a cap assembly. The inner end of the heat - preservation sleeve is fixedly connected with an inner container. A heat - preservation pad is attached to the outside of the inner container, and the outer end of the heat - preservation pad is fixedly connected with a holding sleeve. The bottom end of the holding sleeve is fixedly connected with a base. The utility model relates to the technical field of blow - molded containers. For this intelligent polyethylene blow - molded container with a heat - preservation structure, when pulling the pull rod, the pull rod drives the pressing plate to move upward, and the gas in the inner container enters the groove in the shell through the three - way solenoid valve. Then, the three - way solenoid valve is reversed. When pressing the pull rod, the pull rod discharges the gas in the groove in the shell through the three - way solenoid valve and the exhaust pipe to the outside of the whole container through the pressing plate, and the three - way solenoid valve is reset. Repeat the above operations until the gas between the inner container and the cap assembly is exhausted.

[0004] In the above - mentioned technology, although the designed structure has been improved to a certain extent, there are still some defects. The polyethylene blow - molded container is designed as a multi - layer structure. Although it has a certain protective effect, the buffering effect of the multi - layer design on impact forces is extremely limited. The inner container will still be subjected to a large after - wave of impact force, which may cause damage to the highly corrosion - resistant layer arranged inside the polyethylene blow - molded container, thereby reducing the protective performance and the practicality is poor. Moreover, the damping rod and spring configured therein cannot buffer the impact force from the side, and the practicality is relatively poor. Therefore, a highly corrosion - resistant double - barrier polyethylene blow - molded container is proposed to solve the above problems. Summary of the Invention

[0005] In order to make up for the above deficiencies, the present utility model provides a double-layer barrier polyethylene blow-molded container with strong corrosion resistance, aiming to improve the problem that the external protection performance of the double-layer barrier polyethylene blow-molded container with strong corrosion resistance in the prior art is too low, and the strong corrosion-resistant layer on its inner wall may be damaged when it is impacted.

[0006] To achieve the above object, the present utility model adopts the following technical solution: A double-layer barrier polyethylene blow-molded container with strong corrosion resistance, including a blow-molded container body. An annular groove is provided on the outer wall of the blow-molded container body. A first sealing groove is provided on the upper surface of the blow-molded container body. A second sealing groove is provided on the outer wall at the top end of the blow-molded container body. A protective component is arranged on the inner wall of the annular groove. A sealing component is arranged on the outer wall at the top end of the blow-molded container body. The protective component includes a circular ring slidably connected to the inner wall of the annular groove. A hinge block is fixedly connected to the front surface of the circular ring. A sliding rod is hinged to the inner wall at the right end of the hinge block. A sleeve is slidably connected to the outer wall of the sliding rod. A ball is slidably connected to the upper surface of the circular ring. The ball rolls on the inner wall of the annular groove.

[0007] Preferably, the sealing component includes a cover plate. The inner wall of the cover plate contacts the outer wall at the top end of the blow-molded container body. A rectangular groove is provided on the right surface of the cover plate. A sealing ring is fixedly connected to the lower surface of the cover plate. The sealing ring contacts the inner wall of the first sealing groove. A sealing ring is fixedly connected to the inner wall of the cover plate. The sealing ring contacts the inner wall of the second sealing groove.

[0008] Preferably, the protective component further includes an elastic protective shell. The lower surface of the elastic protective shell slides on the upper surface of the blow-molded container body. A concave block is fixedly connected to the inner wall of the elastic protective shell. There are multiple groups of sliding rods, and multiple groups of elastic protective shells penetrate and are slidably connected to the front surface of the sleeve. The front ends of multiple groups of elastic protective shells are hinged to the inner wall of the concave block.

[0009] Preferably, a second air hole is provided on the inner wall of the sleeve, and a first air hole is provided on the upper surface of the sleeve. The first air hole is communicated with the second air hole.

[0010] Preferably, a piston block is elastically connected to the inner wall of the sleeve through a first spring. The rear surface of the piston block is fixedly connected to the front surface of the sliding rod. The piston block is piston-connected to the inner wall of the sleeve. One end of the first spring is fixedly connected to the front surface of the piston block, and the other end of the first spring is fixedly connected to the inner wall of the sleeve.

[0011] Preferably, the sealing assembly further includes a fixing block fixedly connected to the right surface of the top end of the blow molding container body. The inner wall of the top end of the fixing block is elastically connected to a clamping block through a second spring. The clamping block is slidably connected to the inner wall of the top end of the fixing block. One end of the second spring is fixedly connected to the inner wall of the top end of the fixing block, and the other end of the second spring is fixedly connected to the right surface of the clamping block. The left end of the clamping block contacts the inner wall of the rectangular groove.

[0012] Preferably, a push plate is fixedly connected to the upper surface of the right end of the clamping block, and the push plate is slidably connected through the upper surface of the fixing block.

[0013] Preferably, the left surface of the clamping block is provided with an inclined surface.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, through the arranged protection assembly, the outer wall of the blow molding container body can be protected, the impact force from the outside can be buffered, the protection performance of the blow molding container body is improved. At the same time, when the elastic protection shell is impacted, under the cooperation of the ring and the ball, the elastic protection shell can rotate to unload the force, improving the practicability.

[0016] 2. In the utility model, through the arranged sealing assembly, the feeding port of the blow molding container body can be quickly sealed, without using the way of screw matching and repeated rotation for sealing operation, greatly improving the convenience. In addition, under the double sealing action of the arranged sealing ring and the sealing gasket, the sealing performance of the blow molding container is significantly improved. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of the whole device in the utility model;

[0018] Figure 2 is a top view schematic diagram of the three-dimensional structure of the whole device in the utility model;

[0019] Figure 3 is a split cross-sectional schematic diagram of the three-dimensional structure of the whole device in the utility model;

[0020] Figure 4 is a split cross-sectional schematic diagram of the three-dimensional structure of the sleeve and the sliding rod in the utility model;

[0021] Figure 5 is in the utility model Figure 3 is an enlarged schematic diagram of the three-dimensional structure of area A;

[0022] Figure 6 is in the utility model Figure 4 is an enlarged schematic diagram of the three-dimensional structure of area B.

[0023] Legend Explanation:

[0024] 1. Blow - molded container body; 21. Elastic protective shell; 22. Hinge block; 23. Sleeve; 24. Concave block; 25. Ring; 26. Ball; 27. Piston block; 28. First spring; 29. First air hole; 210. Second air hole; 211. Slide bar; 31. Cover plate; 32. Fixed block; 33. Sealing ring; 34. Sealing gasket; 35. Clamping block; 36. Push plate; 37. Second spring; 38. Rectangular groove; 4. Annular groove; 5. First sealing groove; 6. Second sealing groove. Detailed Implementation Manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0026] Refer to Figure 1 - Figure 3 , an embodiment provided by the present invention: A highly corrosion - resistant double - layer barrier polyethylene blow - molded container, including a blow - molded container body 1. The blow - molded container body 1 is a prior art, made of polyethylene material, and a highly corrosion - resistant material is provided inside it, which improves the service life. And those skilled in the art can implement it. Since it is a prior art, it will not be described in detail in this case. An annular groove 4 is opened on the outer wall of the blow - molded container body 1, a first sealing groove 5 is opened on the upper surface of the blow - molded container body 1, and a second sealing groove 6 is opened on the outer wall of the top end of the blow - molded container body 1. A protective component is arranged on the inner wall of the annular groove 4, and a sealing component is arranged on the outer wall of the top end of the blow - molded container body 1. The protective component includes a ring 25 slidably connected to the inner wall of the annular groove 4. When the ring 25 slides on the inner wall of the annular groove 4, it rotates around the center of the blow - molded container body 1, which can effectively relieve force. A hinge block 22 is fixedly connected to the front surface of the ring 25. A slide bar 211 is hinged to the inner wall of the right end of the hinge block 22. A sleeve 23 is slidably connected to the outer wall of the slide bar 211. A ball 26 is slidably connected to the upper surface of the ring 25. The ball 26 can make the ring 25 slide more smoothly on the inner wall of the annular groove 4, and the ball 26 rolls on the inner wall of the annular groove 4.

[0027] Refer to Figure 1 - Figure 3 、 Figure 5, the sealing component includes a cover plate 31. The inner wall of the cover plate 31 contacts the outer wall of the top end of the blow - molded container body 1. A rectangular groove 38 is provided on the right surface of the cover plate 31. A sealing ring 33 is fixedly connected to the lower surface of the cover plate 31. The sealing ring 33 contacts the inner wall of the first sealing groove 5. A sealing ring 34 is fixedly connected to the inner wall of the cover plate 31. Through the double - layer sealing of the sealing ring 33 and the sealing ring 34, the sealing effect of the cover plate 31 can be improved. The sealing ring 34 contacts the inner wall of the second sealing groove 6. Both the sealing ring 33 and the sealing ring 34 are made of rubber material, ensuring that the cover plate 31 can be installed smoothly.

[0028] Refer to Figure 1 - Figure 4 、 Figure 6 , the protection component further includes an elastic protection shell 21. The elastic protection shell 21 has a certain elasticity itself. When subjected to an external impact, it has a certain buffering effect, avoiding relative damage caused by hard contact with the impact force and improving the service life. The lower surface of the elastic protection shell 21 slides on the upper surface of the blow - molded container body 1. A concave block 24 is fixedly connected to the inner wall of the elastic protection shell 21. Multiple groups of sliding rods 211 are provided, and multiple groups of the elastic protection shell 21 penetrate and are slidably connected to the front surface of the sleeve 23. The front ends of multiple groups of the elastic protection shell 21 are hinged to the inner wall of the concave block 24. An air hole two 210 is provided on the inner wall of the sleeve 23, and an air hole one 29 is provided on the upper surface of the sleeve 23. When multiple groups of sliding rods 211 move, they will drive multiple groups of piston blocks 27 to move together to squeeze the air inside the sleeve 23. The squeezed air will enter the inner wall of the air hole two 210 and collide, thereby generating a certain resistance. The generated resistance will offset the external impact force, improving the buffering effect. The air hole one 29 is communicated with the air hole two 210.

[0029] Refer to Figure 3 - Figure 4 , a piston block 27 is elastically connected to the inner wall of the sleeve 23 through a first spring 28. The first spring 28 has a certain elasticity itself, and it can buffer the external impact force through its own elasticity, improving the protection performance. The rear surface of the piston block 27 is fixedly connected to the front surface of the sliding rod 211. The piston block 27 is piston - connected to the inner wall of the sleeve 23. One end of the first spring 28 is fixedly connected to the front surface of the piston block 27, and the other end of the first spring 28 is fixedly connected to the inner wall of the sleeve 23.

[0030] Refer to Figure 3 、 Figure 5, the sealing assembly further includes a fixing block 32, which is fixedly connected to the right surface of the top end of the blow - molded container body 1. The inner wall of the top end of the fixing block 32 is elastically connected to a clamping block 35 through a second spring 37. The second spring 37 always pushes the clamping block 35 to move leftward by its own elasticity to ensure the stability of its limit. The clamping block 35 is slidably connected to the inner wall of the top end of the fixing block 32. One end of the second spring 37 is fixedly connected to the inner wall of the top end of the fixing block 32, and the other end of the second spring 37 is fixedly connected to the right surface of the clamping block 35. The left end of the clamping block 35 contacts the inner wall of the rectangular groove 38. The upper surface of the right end of the clamping block 35 is fixedly connected to a push plate 36. The push plate 36 is slidably connected through the upper surface of the fixing block 32. The left surface of the clamping block 35 is set as an inclined surface, and the set inclined surface can improve the installation speed of the cover plate 31 and improve the convenience.

[0031] Working principle: When in use, if the blow - molded container body 1 is subjected to an external impact force, the external impact force will contact the elastic protective shell 21. The elastic protective shell 21 will deform and drive the concave - shaped block 24 to move. The concave - shaped block 24 will drive multiple groups of sliding rods 211 to penetrate and slide on the rear surface of the sleeve 23. At the same time, the front ends of multiple groups of sliding rods 211 will rotate with the concave - shaped block 24. In addition, multiple groups of sliding rods 211 will drive multiple groups of piston blocks 27 to perform piston motion on the inner wall of the sleeve 23. Multiple groups of piston blocks 27 will squeeze multiple groups of first springs 28, and multiple groups of first springs 28 will buffer the external impact force through their own elasticity. At the same time, the sliding rods 211 hinged with the hinge block 22 will also move, and the piston blocks 27 will also squeeze the air on the inner wall of the rear end of the sleeve 23. At this time, the air squeezed on the inner wall of the front end and the rear end of the sleeve 23 will enter the inner wall of the second air hole 210 and collide, thereby generating a certain damping effect, and finally flowing out through the first air hole 29, so as to achieve the buffering effect. And when the external impact force deviates from the center line of the blow - molded container body 1, it drives the ring 25 to slide on the inner wall of the annular groove 4, and the elastic protective shell 21 will also slide to unload the impact force and improve the protection performance.

[0032] When the cover plate 31 needs to be opened, pull the push plate 36. The push plate 36 will drive the clamping block 35 to move until the clamping block 35 disengages from the inner wall of the rectangular groove 38. At this time, the cover plate 31 can be taken off. When taking it off, the sealing ring 34 will be squeezed and deformed and disengaged from the inner wall of the second sealing groove 6. When installing, directly cover the cover plate 31 on the upper surface of the blow - molded container body 1. When covering, the sealing ring 34 will be squeezed and deformed, and at the same time, the cover plate 31 will push it to move along the inclined surface of the clamping block 35. The clamping block 35 will squeeze the second spring 37 until the clamping block 35 overlaps with the rectangular groove 38. At this time, the second spring 37 will push the clamping block 35 to move reversely by its own elasticity and insert into the inner wall of the rectangular groove 38. At this time, the sealing ring 34 will also be reset by its own elasticity and clamped on the inner wall of the second sealing groove 6.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A double-layer barrier polyethylene blow molding container with strong corrosion resistance, comprising a blow molding container body (1), characterized in that: An annular groove (4) is formed on the outer wall of the blow-molded container body (1). A first sealing groove (5) is formed on the upper surface of the blow-molded container body (1). A second sealing groove (6) is formed on the outer wall at the top end of the blow-molded container body (1). A protective component is arranged on the inner wall of the annular groove (4). A sealing component is arranged on the outer wall at the top end of the blow-molded container body (1). The protective component includes a circular ring (25) slidably connected to the inner wall of the annular groove (4). A hinge block (22) is fixedly connected to the front surface of the circular ring (25). A sliding rod (211) is hinged to the inner wall at the right end of the hinge block (22). A sleeve (23) is slidably connected to the outer wall of the sliding rod (211). A ball (26) is slidably connected to the upper surface of the circular ring (25). The ball (26) rolls on the inner wall of the annular groove (4).

2. The double-layer barrier polyethylene blow-molded container with strong corrosion resistance according to claim 1, characterized in that: The sealing component includes a cover plate (31). The inner wall of the cover plate (31) contacts the outer wall at the top end of the blow-molded container body (1). A rectangular groove (38) is formed on the right surface of the cover plate (31). A sealing ring (33) is fixedly connected to the lower surface of the cover plate (31). The sealing ring (33) contacts the inner wall of the first sealing groove (5). A sealing ring (34) is fixedly connected to the inner wall of the cover plate (31). The sealing ring (34) contacts the inner wall of the second sealing groove (6).

3. A double-layer barrier polyethylene blow-molded container with strong corrosion resistance according to claim 1, characterized in that: The protective component further includes an elastic protective shell (21). The lower surface of the elastic protective shell (21) slides on the upper surface of the blow-molded container body (1). A concave block (24) is fixedly connected to the inner wall of the elastic protective shell (21). There are multiple groups of the sliding rods (211), and multiple groups of the elastic protective shells (21) penetrate and are slidably connected to the front surface of the sleeve (23). The front ends of multiple groups of the elastic protective shells (21) are hinged to the inner wall of the concave block (24).

4. A highly corrosion-resistant double-barrier polyethylene blow-molded container according to claim 1, wherein: A second air hole (210) is formed in the inner wall of the sleeve (23). A first air hole (29) is formed on the upper surface of the sleeve (23). The first air hole (29) is communicated with the second air hole (210).

5. A highly corrosion-resistant double-barrier polyethylene blow-molded container according to claim 1, characterized in that: A piston block (27) is elastically connected to the inner wall of the sleeve (23) through a first spring (28). The rear surface of the piston block (27) is fixedly connected to the front surface of the sliding rod (211). The piston block (27) is piston-connected to the inner wall of the sleeve (23). One end of the first spring (28) is fixedly connected to the front surface of the piston block (27). The other end of the first spring (28) is fixedly connected to the inner wall of the sleeve (23).

6. A highly corrosion-resistant double-barrier polyethylene blow-molded container according to claim 2, characterized in that: The sealing component further includes a fixing block (32). The fixing block (32) is fixedly connected to the right surface at the top end of the blow-molded container body (1). A clamping block (35) is elastically connected to the inner wall at the top end of the fixing block (32) through a second spring (37). The clamping block (35) is slidably connected to the inner wall at the top end of the fixing block (32). One end of the second spring (37) is fixedly connected to the inner wall at the top end of the fixing block (32). The other end of the second spring (37) is fixedly connected to the right surface of the clamping block (35). The left end of the clamping block (35) contacts the inner wall of the rectangular groove (38).

7. A double-layer barrier polyethylene blow-molded container with high corrosion resistance according to claim 6, characterized in that: The upper surface of the right end of the clamping block (35) is fixedly connected with a push plate (36), and the push plate (36) is slidably connected through the upper surface of the fixed block (32).

8. A highly corrosion-resistant double-barrier polyethylene blow-molded container according to claim 6, characterized in that: The left surface of the clamping block (35) is arranged as an inclined surface.

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