Packaging container

Abstract

The packaging container comprises a container body and a cover body, the container body comprises a bottle body and a bottle opening formed in the bottle body, and a blocking part is arranged on the side wall of the bottle opening; a pressing part is arranged on the side wall of the cover body, an elastic clamping part is arranged on the side wall of the pressing part, and when the cover body and the bottle opening are mutually screwed in place, the elastic clamping part and the blocking part are locked in a matched mode; wherein the blocking part and the bottle opening are integrally formed. The blocking part and the bottle opening are integrally formed, so that a buckle sleeve does not need to be additionally arranged, the blocking part is directly formed on the bottle opening in an injection molding mode, meanwhile, the defect of poor forming of the blocking part is avoided, and therefore the product yield is improved while the product cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging, and particularly to a packaging container. Background Art

[0002] Traditional packaging bottles usually consist of a bottle body and a bottle cap. The bottle body is provided with a bottle mouth, and the bottle cap is fitted with the bottle mouth by screwing. The snap structure between the two plays a locking role. The snap structure includes a pressing block provided on the bottle cap and a blocking block located on the shoulder of the bottle body. However, in the traditional manufacturing process, the bottle body is integrally blow-molded. Due to the small size and irregular shape of the blocking block structure, it is easy to have poor molding during the blow-molding process, which directly leads to a low product yield rate and further increases the production cost. To solve the above problems, an improved solution has emerged on the market: adding a snap sleeve, sleeving it on the bottle mouth and fixing it on the shoulder of the bottle body, and at the same time integrally injection-molding the blocking block and the snap sleeve. Although this solution solves the problem of poor blow-molding of the blocking block, it also brings new drawbacks. The newly added snap sleeve not only increases the material cost, but also the operation step of sleeving it into the bottle mouth increases the production process, and correspondingly consumes more labor costs. Summary of the Invention

[0003] An embodiment of the present invention provides a packaging container, aiming to solve the problem of high cost caused by the newly added snap sleeve in the existing packaging bottle.

[0004] The present invention provides a packaging container, including:

[0005] A container body, including a bottle body and a bottle mouth provided on the bottle body, and a blocking portion is provided on the side wall of the bottle mouth;

[0006] A cover body, on the side wall of which a pressing portion is provided, and an elastic snap portion is provided on the side wall of the pressing portion. When the cover body and the bottle mouth are screwed tightly in place, the elastic snap portion cooperates with the blocking portion to lock;

[0007] Wherein, the blocking portion and the bottle mouth are integrally formed.

[0008] In the packaging container provided by the present invention, the blocking portion includes a cantilever and a blocking block. The cantilever extends radially outward from the side wall of the bottle mouth and forms the blocking block at the end of the extension. A gap for the elastic snap portion to pass through is formed between the blocking block and the side wall of the bottle mouth.

[0009] In the packaging container provided by the present invention, a first inclined surface for guiding the sliding of the elastic snap portion is provided on the side of the blocking block facing the gap.

[0010] In the packaging container provided by the present invention, a blocking end surface that abuts against the elastic snap portion is provided on the side of the blocking block facing the screwing-out direction of the cover body.

[0011] In the packaging container provided by the present invention, a ramp for guiding the elastic clamping portion into the gap is provided on the upper surface of the cantilever.

[0012] In the packaging container provided by the present invention, a support strip extending along the circumferential direction is provided on the side wall of the bottle mouth, the lower edge of the lid body abuts against the upper surface of the support strip, and the cantilever extends radially outward from the side edge of the support strip.

[0013] In the packaging container provided by the present invention, one side of the pressing portion is connected to the outer side wall of the lid body, and a spacing is reserved between the side wall of the pressing portion and the outer side wall of the lid body to provide a deformation space.

[0014] In the packaging container provided by the present invention, the pressing portion includes an outer sheet body and an inner sheet body. The upper side edge of the outer sheet body is connected to the outer side wall of the lid body, the lower side edge of the outer sheet body extends toward the lower edge of the lid body, the inner sheet body is arranged between the inner side wall of the outer sheet body and the outer side wall of the lid body, and the elastic clamping portion is arranged at the lower side edge of the inner sheet body; wherein, when a pressing force is applied to the outer sheet body, the outer side wall of the blocking portion abuts against the inner side wall of the outer sheet body.

[0015] In the packaging container provided by the present invention, a second inclined surface for guiding the sliding of the blocking block is provided on the side wall of the elastic clamping portion facing away from the lid body.

[0016] In the packaging container provided by the present invention, the bottle body has a shoulder, the lid body is provided with a skirt arranged circumferentially around its outer side wall, the skirt is attached to the surface of the shoulder, and the skirt is provided with an avoidance groove for avoiding the pressing portion. Among them, a clamping prevention step is formed by the downward depression of the groove edge of the avoidance groove adjacent to the lower edge of the pressing portion.

[0017] In the packaging container provided by the present invention, two of the pressing portions are symmetrically arranged on both sides of the side wall of the lid body, and two of the blocking portions are symmetrically arranged on both sides of the side wall of the bottle mouth.

[0018] In the packaging container provided by the present invention, the bottle body is blow-molded.

[0019] In the packaging container provided by the present invention, a stacking groove adapted to the shape of the bottom of the bottle body is provided at the top of the lid body.

[0020] In the packaging container provided by the present invention, the inner side wall of the lid is provided with a first internal thread and a second internal thread, the outer side wall of the bottle mouth is provided with a first external thread and a second external thread, the first internal thread is screwed into the first external thread, the second internal thread is screwed into the second external thread, and the thread pitches of the first internal thread and the first external thread and the thread pitches of the second internal thread and the second external thread are configured such that the angle range of relative rotation between the lid and the bottle mouth is 45° - 90°.

[0021] The present invention provides a packaging container, which includes a container body and a lid. A pressing part is provided on the side wall of the lid, and an elastic clamping part is provided on the side wall of the pressing part. The container body includes a bottle body and a bottle mouth, and a blocking part corresponding to the elastic clamping part is provided on the side wall of the bottle mouth. When the lid and the bottle mouth are screwed tightly in place, the elastic clamping part and the blocking part cooperate to lock the lid and the container body. Among them, the blocking part is integrally formed with the bottle mouth. In this way, there is no need to add a snap sleeve, and the blocking part is directly injection-molded on the bottle mouth. At the same time, the defect of poor forming of the blocking part is avoided, thereby reducing the product cost while improving the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 shows a schematic diagram of the packaging container according to an embodiment of the present invention;

[0024] Figure 2 shows an exploded schematic diagram of the packaging container according to an embodiment of the present invention;

[0025] Figure 3 shows Figure 2 a magnified schematic diagram of part A;

[0026] Figure 4 shows Figure 2 a magnified schematic diagram of part B;

[0027] Figure 5 shows a cross-sectional schematic diagram when the elastic buckle of the packaging container according to an embodiment of the present invention enters the gap of the blocking part;

[0028] Figure 6 shows a cross-sectional schematic diagram when the elastic buckle of the packaging container according to an embodiment of the present invention falls onto the blocking end face of the blocking part;

[0029] Figure 7Shows a schematic diagram of the bottom of the lid of the packaging container according to an embodiment of the present invention;

[0030] Figure 8 Shows Figure 7 An enlarged schematic diagram of part C of

[0031] Figure 9 Shows a sectional schematic diagram of the lid of the packaging container according to an embodiment of the present invention;

[0032] Figure 10 Shows Figure 9 An enlarged schematic diagram of part D of

[0033] Reference numerals:

[0034] 1. Container body; 11. Bottle body; 12. Bottle mouth; 13. Blocking part; 131. Cantilever; 132. Blocking block; 133. Gap; 134. First inclined surface; 135. Blocking end face; 136. Slope; 14. Support strip; 15. Shoulder; 161. First external thread; 162. Second external thread; 2. Lid; 21. Pressing part; 211. Outer sheet body; 212. Inner sheet body; 22. Elastic clamping part; 221. Second inclined surface; 23. Skirt; 231. Avoidance groove; 232. Anti-pinch step; 241. First internal thread; 242. Second internal thread; 25. Stacking groove. Detailed implementation manners

[0035] 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 part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0036] The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are only references to the directions in the attached drawings. Therefore, the directional terms used are for explaining and understanding the present invention, rather than for limiting the present invention. In addition, in the drawings, structures that are similar or the same are denoted by the same reference numerals.

[0037] Refer to Figures 1 - 10, an embodiment of the present invention provides a packaging container, comprising: a container body 1 and a lid 2. The container body 1 includes a bottle body 11 and a bottle mouth 12 provided on the bottle body 11, and a blocking portion 13 is provided on the side wall of the bottle mouth 12; the lid 2 has a pressing portion 21 on its side wall, and an elastic clamping portion 22 is provided on the side wall of the pressing portion 21. When the lid 2 and the bottle mouth 12 are screwed tightly in place, the elastic clamping portion 22 cooperates with the blocking portion 13 to lock; wherein, the blocking portion 13 and the bottle mouth 12 are integrally formed.

[0038] Specifically, the container body 1 of the packaging container includes a bottle body 11 and a bottle mouth 12. The bottle body 11 is a hollow flat cylindrical container, and the bottle mouth 12 is a short-mouthed structure with an outer diameter smaller than the outer diameter of the shoulder 15 of the bottle body 11. A blocking portion 13 is formed by the side wall of the bottle mouth 12 protruding outward. The lid 2 is a round lid structure with a closed top, and a pair of symmetric pressing portions 21 are provided on its side wall. The pressing portion 21 can be of various shape structures. For example, it can be an elastic thin-walled area with a partial inward depression. Of course, it can be understood that other structures are also possible and are not limited here. An elastic clamping portion 22 protruding toward the central axis direction of the lid 2 is provided on the inner side wall of the pressing portion 21; when the lid 2 is screwed onto the bottle mouth 12, the elastic clamping portion 22 slides along the outer wall of the bottle mouth 12 until it contacts the blocking portion 13. At this time, continuing to screw the lid 2 will force the elastic clamping portion 22 to undergo elastic deformation and cross over the blocking portion 13, and then the elastic clamping portion 22 rebounds and engages with the blocking end face 135 of the blocking portion 13 to lock. At the same time, the internal thread of the lid 2 is fully engaged with the external thread of the bottle mouth 12 to achieve sealing; since the blocking portion 13 and the bottle mouth 12 are integrally formed by injection molding, its dimensional accuracy is high and there are no material shortage defects common in the blow molding process, ensuring the clamping stability between the elastic clamping portion 22 and the blocking portion 13. At the same time, after eliminating the independent buckle sleeve structure, both the material cost is reduced and the production process is simplified, ultimately achieving the dual effects of improving the yield and reducing the cost.

[0039] Through this embodiment, compared with the traditional blow molding process, injection molding can more accurately realize the structure of the small-sized and irregularly shaped blocking portion 13, completely solving the problems of poor filling or deformation caused by uneven material stretching during the blow molding process, thereby significantly improving the product yield. At the same time, this solution eliminates the independent buckle sleeve structure in the traditional improvement scheme, not only reducing the additional material consumption and eliminating the assembly process of the buckle sleeve, but also simplifying the production process, thereby reducing the comprehensive production cost.

[0040] Refer to Figures 1 - 6, in one embodiment, the blocking portion 13 includes a cantilever 131 and a blocking block 132. The cantilever 131 extends radially outward from the side wall of the bottle mouth 12 and forms the blocking block 132 at the end of the extension. A gap 133 is formed between the blocking block 132 and the side wall of the bottle mouth 12 for the elastic clamping portion 22 to pass through. Specifically, the blocking portion 13 is composed of the cantilever 131 and the blocking block 132. The cantilever 131 is a strip-shaped thin-walled structure extending radially outward from the side wall of the bottle mouth 12, and its extension direction is perpendicular to the axis of the bottle mouth 12. The end of the cantilever 131 is bent upward to form a rectangular blocking block 132. The end face at the rear of the blocking block 132 is a blocking end face 135 for restricting the backward movement of the elastic clamping portion 22. The length of the cantilever 131 is designed such that a gap 133 with a width slightly larger than the thickness of the elastic clamping portion 22 is formed between the blocking block 132 and the side wall of the bottle mouth 12. During the screwing process of the lid 2, the elastic clamping portion 22 first contacts the guiding surface of the blocking block 132. The guiding surface is an inclined surface or an arc surface on the side of the blocking block 132 close to the bottle mouth 12. The elastic clamping portion 22 is elastically contracted toward the central axis direction of the bottle mouth 12 under the extrusion of the guiding surface, and at the same time slides along the guiding surface until it completely enters the gap 133 between the cantilever 131 and the side wall of the bottle mouth 12. When the lid 2 is screwed in place, the elastic clamping portion 22 passes through the gap 133 and rebounds to the side of the blocking block 132 away from the bottle mouth 12. At this time, the vertical end face of the blocking block 132 constitutes the blocking end face 135, and the elastic clamping portion 22 abuts against the blocking end face 135 to form a lock. When unlocking is required, pressing the pressing portion 21 of the lid 2 drives the elastic clamping portion 22 to elastically deform toward the central axis direction of the bottle mouth 12, so that it is misaligned and separated from the blocking end face 135 and re-enters the gap 133 between the cantilever 131 and the side wall of the bottle mouth 12. At this time, rotating the lid 2 in the reverse direction can drive the elastic clamping portion 22 to slide out along the gap 133 to complete the unlocking of the lid 2. The elastic deformation ability of the cantilever 131 allows the blocking block 132 to slightly expand outward when the elastic clamping portion 22 penetrates into the gap 133 to avoid rigid interference, and the blocking block 132 returns to its original position after the elastic clamping portion 22 is in place to ensure the locking reliability. This structure, through the cooperation of the cantilever 131 and the blocking block 132, not only provides an accurate penetration channel for the elastic clamping portion 22, but also realizes a smooth locking action through the extrusion and guiding action of the guiding surface. At the same time, the integrally formed cantilever 131 avoids the assembly error of the split buckle sleeve.

[0041] Refer to Figure 3, in this embodiment, a first inclined surface 134 for guiding the sliding of the elastic clamping portion 22 is provided on one side of the blocking block 132 facing the gap 133. Specifically, a first inclined surface 134 is provided on one side of the blocking block 132 facing the gap 133, and this first inclined surface 134 extends obliquely inward from the top of the blocking block 132 towards the inside of the gap 133, forming a smoothly transitioning guiding structure; when the cover body 2 is screwed, the elastic clamping portion 22 first contacts the first inclined surface 134 and gradually contracts inward under the guidance of the first inclined surface 134, enabling the elastic clamping portion 22 to smoothly slide into the gap 133; at the same time, the inclination angle of the first inclined surface 134 matches the contact surface of the elastic clamping portion 22, ensuring that the direction of the extrusion force is towards the central axis of the bottle mouth 12, reducing the screwing resistance; the design of this first inclined surface 134 optimizes the smoothness of the locking process, reduces the contact stress between the elastic clamping portion 22 and the blocking portion 13, and improves the reliability during long-term use.

[0042] Refer to Figure 4 , in this embodiment, a blocking end face 135 that abuts against the elastic clamping portion 22 is provided on one side of the blocking block 132 facing the screwing-out direction of the cover body 2. Specifically, a vertically extending blocking end face 135 is provided on one side of the blocking block 132 facing the screwing-out direction of the cover body 2, and this blocking end face 135 forms a structural transition with an approximate right angle with the main body of the blocking block 132; when the cover body 2 is screwed tightly in place, the elastic clamping portion 22 forms a surface contact abutment with the blocking end face 135 after rebounding, and the vertical setting of this blocking end face 135 enables it to effectively prevent the displacement of the elastic clamping portion 22 during reverse rotation. At the same time, the width of the blocking end face 135 is not less than the width of the contact surface of the elastic clamping portion 22, ensuring uniform force during locking. During the unlocking process, when the pressing portion 21 is pressed to disengage the elastic clamping portion 22 from the blocking end face 135, the vertically arranged blocking end face 135 will not interfere with the radial movement of the elastic clamping portion 22. This blocking end face 135 is integrally formed with the blocking block 132, and the flatness and perpendicularity of its surface are guaranteed, thereby ensuring precise cooperation with the elastic clamping portion 22. Through the design of this blocking end face 135, both a reliable locking function is achieved and the problem of self-locking failure that may be caused by the traditional inclined-plane type blocking structure is avoided, improving the use safety of the packaging container.

[0043] Refer to Figure 3, in this embodiment, a ramp 136 for guiding the elastic clamping portion 22 into the gap 133 is provided on the upper surface of the cantilever 131. Specifically, a ramp 136 structure that gradually rises upward is provided on the upper surface of the cantilever 131. When the cover body 2 is screwed, the elastic clamping portion 22 first contacts the starting end of the ramp 136. As the screwing action continues, the ramp 136 gradually lifts the elastic clamping portion 22 and guides it into the gap 133 between the cantilever 131 and the side wall of the bottle mouth 12; the inclination angle of the ramp 136 is set to 10°-25°, which not only ensures sufficient lifting height for the elastic clamping portion 22 to smoothly enter the gap 133, but also avoids an increase in the screwing resistance due to too large an angle. This ramp 136 structure significantly reduces the collision resistance when the elastic clamping portion 22 enters the gap 133 through a progressive lifting method, making the locking operation of the cover body 2 more labor-saving and smooth; at the same time, the ramp 136 and the cantilever 131 are integrally formed, and the smoothness of its surface ensures a low-friction fit with the elastic clamping portion 22; compared with the cantilever 131 structure without the ramp 136 design, this solution reduces the screwing force of the cover body 2 and effectively improves the user experience.

[0044] Refer to Figure 3 and Figure 4 , in one embodiment, a support strip 14 extending along the circumferential direction of the side wall of the bottle mouth 12 is provided, the lower edge of the cover body 2 abuts against the upper surface of the support strip 14, and the cantilever 131 radially extends outward from the side edge of the support strip 14. Specifically, a partial support strip 14 extending along the circumferential direction of the side wall of the bottle mouth 12 is provided on the side wall of the bottle mouth 12. The length of the support strip 14 is 1 / 4-1 / 3 of the circumference of the bottle mouth 12 and is located below the blocking portion 13; the upper surface of the support strip 14 is a horizontal plane, and its thickness is 1-2 mm, providing a stable supporting surface for the lower edge of the cover body 2. The cantilever 131 radially extends outward from the side edge of the support strip 14, and the root of it is smoothly connected to the side edge of the support strip 14 in a transitional manner. When the cover body 2 is screwed tightly in place, the lower edge of the cover body 2 is in complete contact with the upper surface of the support strip 14, forming an axial support relationship. At the same time, the structural design of the cantilever 131 extending outward from the side edge of the support strip 14 causes the gap 133 to be naturally formed between the blocking portion 13 and the side wall of the bottle mouth 12. This support strip 14 not only provides a reliable axial positioning reference for the cover body 2, but also enhances the structural strength of the root of the cantilever 131, effectively preventing the cantilever 131 from breaking during repeated use. Compared with the design without the support strip 14, this solution improves the service life of the cantilever 131; at the same time, the support strip 14, the side wall of the bottle mouth 12, and the cantilever 131 are integrally formed, ensuring the structural continuity and dimensional accuracy among the three.

[0045] Refer to Figure 8, in one embodiment, one side of the pressing portion 21 is connected to the outer sidewall of the cover 2, and a spacing is reserved between the sidewall of the pressing portion 21 and the outer sidewall of the cover 2 to provide a deformation space. Specifically, one side of the pressing portion 21 is connected to the outer sidewall of the cover 2, and the other side is a free end. A certain spacing is reserved between the sidewall of the pressing portion 21 and the outer sidewall of the cover 2 to form an elastic deformation space; when pressing the cover 2 to unlock, the free end of the pressing portion 21 can elastically deform in the direction of the central axis of the cover 2, so that the elastic clamping portion 22 is disengaged from the blocking end face 135. At the same time, the connecting end of the pressing portion 21 serves as a fulcrum to ensure the stability and resilience of the pressing action; the width of the deformation space is designed such that the pressing portion 21 has sufficient deformation travel, which not only ensures the operation feel but also avoids plastic fatigue caused by excessive deformation.

[0046] Refer to Figure 8 , in one embodiment, the pressing portion 21 includes an outer sheet body 211 and an inner sheet body 212. The upper side edge of the outer sheet body 211 is connected to the outer sidewall of the cover 2, and the lower side edge of the outer sheet body 211 extends toward the lower edge of the cover 2. The inner sheet body 212 is disposed between the inner sidewall of the outer sheet body 211 and the outer sidewall of the cover 2, and the elastic clamping portion 22 is disposed at the lower side edge of the inner sheet body 212; wherein, when a pressing force is applied to the outer sheet body 211, the outer sidewall of the blocking portion 13 abuts against the inner sidewall of the outer sheet body 211. Specifically, the pressing portion 21 includes an outer sheet body 211 and an inner sheet body 212. The upper side edge of the outer sheet body 211 is connected to the outer sidewall of the cover 2, and its lower side edge extends toward the lower edge of the cover 2 to form a hanging sheet structure; the inner sheet body 212 is located between the inner sidewall of the outer sheet body 211 and the outer sidewall of the cover 2, and the elastic clamping portion 22 is provided at its lower side edge. When pressing the outer sheet body 211, the inner sidewall of the outer sheet body 211 abuts against the outer sidewall of the blocking portion 13 to form a hard limit structure, preventing the outer sheet body 211 or the inner sheet body 212 from breaking due to excessive pressing. Among them, the inner sheet body 212 deforms when pressed, driving the elastic clamping portion 22 to disengage from the blocking end face 135 to achieve unlocking, while the abutment of the outer sheet body 211 and the blocking portion 13 limits the overall deformation amount, protecting the structural integrity of the pressing portion 21; this double-sheet design with a height difference not only ensures sufficient pressing travel to achieve reliable unlocking but also avoids the risk of plastic deformation through mechanical limitation, improving the durability of the pressing portion 21; at the same time, the space between the outer sheet body 211 and the inner sheet body 212 provides a buffer area for pressing deformation, making the operation feel softer.

[0047] Refer to Figure 8, in this embodiment, a second inclined surface 221 for guiding the sliding of the blocking block 132 is provided on the side wall of the elastic clamping portion 22 facing away from the cover body 2. Specifically, the second inclined surface 221 is provided on the side wall of the elastic clamping portion 22 facing away from the cover body 2, and the second inclined surface 221 extends obliquely. When the cover body 2 is tightened, the first inclined surface 134 of the blocking block 132 cooperates with the second inclined surface 221 of the elastic clamping portion 22 to form a sliding guiding relationship at the moment of contact, so that the elastic clamping portion 22 contracts smoothly towards the center of the bottle mouth 12 under the extrusion of the blocking block 132. The inclination angle of the second inclined surface 221 matches that of the first inclined surface 134 to ensure that the force transmission direction is towards the axis of the bottle mouth 12 when the two are in contact, reducing the lateral component force during the screwing process. This inclined surface matching structure makes the contraction action of the elastic clamping portion 22 smoother and avoids the sudden stress that may occur in the traditional right-angle clamping structure. During the unlocking process, the second inclined surface 221 does not participate in the action, and only the first inclined surface 134 guides the elastic clamping portion 22 to retract, ensuring the simplicity of the unlocking operation. Through the design of the second inclined surface 221, the screwing operation force of the cover body 2 is further reduced, and the wear during repeated locking is significantly reduced.

[0048] In one embodiment, the bottle body 11 has a shoulder 15, the cover body 2 is provided with a skirt 23 arranged circumferentially around its outer side wall, the skirt 23 is attached to the surface of the shoulder 15, and the skirt 23 is provided with an avoidance groove 231 for avoiding the pressing portion 21. Among them, an anti-pinch step 232 is formed by the downward depression of the groove edge of the avoidance groove 231 adjacent to the lower edge of the pressing portion 21. Specifically, the bottle body 11 is provided with an outwardly extending shoulder 15 below the bottle mouth 12, and the upper surface of the shoulder 15 is a horizontal plane. The outer side wall of the cover body 2 is provided with a downwardly extending skirt 23, and the skirt 23 is continuously distributed along the circumference of the cover body 2 and fits on the upper surface of the shoulder 15. The skirt 23 is provided with an avoidance groove 231 corresponding to the position of the pressing portion 21, and the width of the avoidance groove 231 is greater than the width of the pressing portion 21 to provide an operation space. The groove edge of the avoidance groove 231 adjacent to the lower edge of the pressing portion 21 is downwardly depressed to form an anti-pinch step 232. The downward depression structure of this step increases the vertical distance between the edge of the avoidance groove 231 and the lower edge of the pressing portion 21 to form an anti-pinch safety gap 133. When the user presses the pressing portion 21, due to the downward depression design of the anti-pinch step 232, there is always enough space between the lower edge of the pressing portion 21 and the edge of the avoidance groove 231 to avoid the possibility of fingers being pinched. The downward depression depth of the anti-pinch step 232 can be 2-3 mm to ensure an effective anti-pinch distance at any pressing angle. This structure completely solves the safety problem of easy pinching of the periphery of the pressing portion 21 of the traditional packaging container without affecting the pressing operation through a simple step downward depression design.

[0049] Refer to Figure 7 and Figure 8In one embodiment, the inner side wall of the cover body 2 is provided with a first internal thread 241 and a second internal thread 242, and the outer side wall of the bottle mouth 12 is provided with a first external thread 161 and a second external thread 162, the first internal thread 241 is screwed into the first external thread 161, and the second internal thread 242 is screwed into the second external thread 162, and the thread strokes of the first internal thread 241 and the first external thread 161 and the thread strokes of the second internal thread 242 and the second external thread 162 are configured to make the angle range of the relative rotation of the cover body 2 and the bottle mouth 12 be 45°-90°. Specifically, the inner side wall of the cover body 2 is provided with a first internal thread 241 and a second internal thread 242 opposite to each other, and the spiral directions of the two threads are the same and the pitches are equal. The outer side wall of the bottle mouth 12 is correspondingly provided with a first external thread 161 and a second external thread 162. When the cover 2 is screwed to the bottle mouth 12, the first internal thread 241 and the first external thread 161, the second internal thread 242 and the second external thread 162 are meshed at the same time to form a double-thread synchronous guide structure. The thread stroke length of the first internal thread 241 and the second internal thread 242 is configured as follows: the relative rotation angle range of the cover 2 and the bottle mouth 12 is 45°-90° to complete the state transition from complete separation to complete locking. The pitch of the double-thread structure is twice that of the conventional single-thread structure, so that the user only needs to rotate half a circle to quickly complete the opening and closing operation of the cover 2, greatly improving the convenience of use; at the same time, the symmetrical force design of the double thread avoids the problem of eccentric load when the single thread is screwed, ensuring the alignment of the cover 2 and the bottle mouth 12; the first internal thread 241 and the second internal thread 242 are symmetrically distributed at 180° on the inner side of the cover 2, which not only ensures the balance of screwing, but also optimizes the operating efficiency by shortening the rotation stroke, which is particularly suitable for packaging container application scenarios that require frequent opening and closing.

[0050] Reference Figure 2 In this embodiment, two pressing parts 21 are symmetrically arranged on both sides of the side wall of the cover body 2, and two blocking parts 13 are symmetrically arranged on both sides of the side wall of the bottle mouth 12. Specifically, two pressing parts 21 are symmetrically arranged on both sides of the side wall of the cover body 2, and the two pressing parts 21 are distributed opposite to each other at 180 degrees, and each pressing part 21 is connected to an independent elastic clamping part 22; two blocking parts 13 are correspondingly arranged on both sides of the side wall of the bottle mouth 12, and the positions of the two blocking parts 13 are precisely aligned with the pressing parts 21, so that when the cover body 2 is screwed into place, the two elastic clamping parts 22 can simultaneously form a locking fit with the corresponding blocking parts 13. This bilateral symmetrical layout allows the cover body 2 to be subjected to balanced force and avoids the problem of eccentric loading caused by unilateral locking.

[0051] In this embodiment, the bottle body 11 is blow molded. Specifically, the container body 1 is manufactured by an injection-blow molding two-step process: First, the blocking portion 13 and the bottle mouth 12 are integrally molded into a preform by an injection molding process, and a blow molding extension area is reserved on the side wall of the preform; subsequently, the preform is placed in a blow mold, and the preform is extended and molded into a bottle body 11 with a predetermined shape by the expansion of high-pressure gas. This process combines the precision of injection molding (ensuring the structural integrity of the blocking portion 13) with the economy of blow molding (realizing the thin-walled of the bottle body 11).

[0052] Referring to Figure 2 , in this embodiment, a stacking groove 25 adapted to the shape of the bottom of the bottle body 11 is provided at the top of the lid body 2. A stacking groove 25 matching the bottom contour of the bottle body 11 is provided at the center of the top of the lid body 2, and the depth of the groove is 3-5 mm. When multiple packaging containers are stacked vertically, the bottom of the bottle body 11 of the upper container can be tightly embedded in the groove of the lid body 2 of the lower container, forming a stable multi-layer stacking structure, and the stacking height can reach multiple layers without tipping over. This stacking structure is particularly suitable for warehousing and shelf display scenarios, and the anti-slip design of the groove prevents relative sliding during transportation.

[0053] In addition, the packaging container of this embodiment adopts a hidden button design, and two pressing portions 21 are symmetrically arranged on the left and right sides of the side wall of the lid body 2 and are blocked by a circumferentially extending skirt 23 structure. When viewed from the front perspective of the packaging container, the skirt 23 and the main body of the lid body 2 form a continuous and smooth outer contour, and the existence part of the pressing portion 21 is shielded, so that the appearance of the container maintains a simple and unified visual effect.

[0054] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A packaging container, characterized in that, Comprising: A container body, including a bottle body and a bottle mouth provided on the bottle body, and a blocking portion is provided on the side wall of the bottle mouth; A cover body, on the side wall of which a pressing portion is provided, and an elastic clamping portion is provided on the side wall of the pressing portion. When the cover body and the bottle mouth are screwed tightly in place, the elastic clamping portion cooperates with the blocking portion to lock; Wherein, the blocking portion and the bottle mouth are integrally formed.

2. The packaging container according to claim 1, characterized in that, The blocking portion includes a cantilever and a blocking block. The cantilever extends radially outward from the side wall of the bottle mouth and forms the blocking block at the end of the extension. A gap for the elastic clamping portion to pass through is formed between the blocking block and the side wall of the bottle mouth.

3. The packaging container according to claim 2, characterized in that, A first inclined surface for guiding the sliding of the elastic clamping portion is provided on the side of the blocking block facing the gap.

4. The packaging container according to claim 3, characterized in that, A blocking end surface that abuts against the elastic clamping portion is provided on the side of the blocking block facing the screwing-out direction of the cover body.

5. The packaging container according to claim 2, characterized in that, A slope for guiding the elastic clamping portion into the gap is provided on the upper surface of the cantilever.

6. The packaging container according to claim 2, wherein A support strip extending along the circumferential direction of the side wall of the bottle mouth is provided on the side wall of the bottle mouth. The lower edge of the cover body abuts against the upper surface of the support strip, and the cantilever extends radially outward from the side edge of the support strip.

7. The packaging container according to any one of claims 1-6, characterized in that, One side of the pressing portion is connected to the outer side wall of the cover body, and a spacing is reserved between the side wall of the pressing portion and the outer side wall of the cover body to provide a deformation space.

8. The packaging container according to claim 7, characterized in that, The pressing portion includes an outer sheet body and an inner sheet body. The upper side edge of the outer sheet body is connected to the outer side wall of the cover body. The lower side edge of the outer sheet body extends toward the lower edge of the cover body. The inner sheet body is arranged between the inner side wall of the outer sheet body and the outer side wall of the cover body. The elastic clamping portion is arranged on the lower side edge of the inner sheet body; wherein, when a pressing force is applied to the outer sheet body, the outer side wall of the blocking portion abuts against the inner side wall of the outer sheet body.

9. The packaging container according to claim 8, wherein, A second inclined surface for guiding the sliding of the blocking block is provided on the side wall of the elastic clamping portion facing away from the cover body.

10. The packaging container according to claim 1, characterized in that, The bottle body has a shoulder. The cover body is provided with a skirt portion arranged circumferentially around its outer side wall. The skirt portion adheres to the surface of the shoulder. The skirt portion is provided with an avoidance groove for avoiding the pressing portion. Wherein, a clamping prevention step is formed by the downward depression of the groove edge of the avoidance groove adjacent to the lower edge of the pressing portion; and / or, Two of the pressing portions are symmetrically arranged on both sides of the side wall of the cover body, and two of the blocking portions are symmetrically arranged on both sides of the side wall of the bottle mouth; and / or, The bottle body is blow molded; and / or, A stacking groove adapted to the shape of the bottom of the bottle body is provided on the top of the cover body; and / or, A first internal thread and a second internal thread are provided on the inner side wall of the cover body. A first external thread and a second external thread are provided on the outer side wall of the bottle mouth. The first internal thread is screwed into the first external thread, and the second internal thread is screwed into the second external thread. The thread travel of the first internal thread and the first external thread and the thread travel of the second internal thread and the second external thread are configured such that the angle range of the relative rotation between the cover body and the bottle mouth is 45°-90°.

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