Blow molding storage bottle body assembly with rear-mounted handle

By setting recessed areas and snap-fit ​​structures on the bottle body, the problems of material waste and low production efficiency in traditional blow molding are solved, achieving a stable connection between the handle and the bottle body and improving structural strength.

CN223508710UActive Publication Date: 2025-11-04ZHONGSHAN HUIWEI PLASTIC METAL IND
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Patent Information

Application Number
CN202422540335.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-11-04
Estimated Expiration
2034-10-18

AI Technical Summary

Technical Problem

In the existing technology, the traditional blow molding process of plastic bottle handles is made as one piece with the bottle body, which leads to material waste and low production efficiency. In addition, the handle is easy to fall off after separation, and the bottle body is not hard enough.

Method used

The bottle body and handle are manufactured separately. By setting a recessed area and a snap-fit ​​structure on the bottle body, the handle can be easily installed using snap-fit ​​holes and tongues, and the structural stability is improved by reinforcing ribs.

Benefits of technology

This design achieves a secure connection between the handle and the bottle body, preventing deformation, saving materials, and improving production efficiency and structural strength.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a blow molding storage bottle body assembly with a back-mounted handle, which comprises a bottle body and the handle, the handle comprises a mounting plate, the upper end and the lower end of the mounting plate are respectively connected with an upper connecting plate, a lower connecting plate and a handheld plate, the upper connecting plate, the lower connecting plate and the handheld plate enclose to form a surrounding structure for a human hand to pass through, and one side of the bottle body is provided with a concave area formed by a blow molding process. The concave area comprises a mounting groove matched with the mounting plate in shape, an upper mounting groove matched with the upper connecting plate in shape and a lower mounting groove matched with the lower connecting plate in shape, a first clamping hole concave downwards is formed in the bottom of the lower mounting groove, and a first inserting tongue capable of being inserted into the first clamping hole is arranged at the bottom of the lower connecting plate; the bottom of the upper mounting groove is provided with a second clamping hole which is concave upwards, the top of the upper connecting plate is provided with a second inserting tongue which can be inserted into the second clamping hole, the side, facing the handle, of the upper mounting groove is open, the open side of the upper mounting groove is provided with a first guide face, the assembly is high in structural strength, and production efficiency is improved.
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Description

Technical Field

[0001] This utility model specifically relates to a blow-molded storage bottle assembly with a handle attached to the back. Background Technology

[0002] Larger plastic bottles are typically equipped with handles for easy gripping. Traditionally, plastic bottles with handles are manufactured by blow molding, where the handle is pre-formed into the bottle body and then connected and fixed during the blow molding process. However, this traditional method requires higher-quality materials for the bottle body, resulting in thicker walls, material waste, complex processing, high precision requirements, low production efficiency, and high production costs. For more details, please refer to patents CN92245679.8 ("Plastic Bottle with Embedded Handle") and CN93240773.0 ("Plastic Bottle with Embedded Handle").

[0003] Therefore, another process is often used to manufacture plastic bottles: the bottle body is blow-molded separately, and the handle is injection-molded separately. A connecting structure is created on the outer wall of the bottle using a core within the blow-molding mold, and the handle is then attached to the bottle body via this structure. While this process can produce bottles with thinner walls, subsequent handle installation can easily lead to bottle deformation, lower bottle rigidity, and the handle easily detaching under stress.

[0004] This utility model was developed precisely because of the aforementioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a blow-molded storage bottle assembly with high structural strength and improved production efficiency.

[0006] This utility model is achieved through the following technical solution:

[0007] A blow-molded storage bottle assembly with a rear-mounted handle includes a bottle body and a handle. The handle includes a mounting plate, with an upper connecting plate and a lower connecting plate connected to its upper and lower ends respectively. A grip plate connects the upper and lower connecting plates. The mounting plate, upper connecting plate, and lower connecting plate form an enclosed structure for a hand to pass through. One side of the bottle body has a recessed area formed by a blow molding process. The recessed area includes a mounting groove matching the shape of the mounting plate, an upper mounting groove matching the shape of the upper connecting plate, and a lower mounting groove matching the shape of the lower connecting plate. The bottom of the lower mounting groove has a downwardly recessed first snap-fit ​​hole. The bottom of the lower connecting plate has a first tongue that can be inserted into the first snap-fit ​​hole. The bottom of the upper mounting groove has an upwardly recessed second snap-fit ​​hole. The top of the upper connecting plate has a second tongue that can be inserted into the second snap-fit ​​hole. The upper mounting groove is open on the side facing the handle, and the open side of the upper mounting groove has a first guide surface for guiding the second tongue into the second snap-fit ​​hole after the first tongue is inserted into the first snap-fit ​​hole.

[0008] As described above, in the blow-molded storage bottle assembly with the handle attached to the back, the top of the second tongue is provided with a second guide surface for abutting against the first guide surface when the handle is installed.

[0009] As described above, in the blow-molded storage bottle assembly with the handle attached to the back, the top of the grip plate is provided with a mounting surface that matches the shape of the first guide surface. When the second tongue is inserted into the second snap-fit ​​hole, the mounting surface abuts against the first guide surface.

[0010] As described above, the blow-molded storage bottle assembly with the handle attached to the back has an assembly groove at the bottom of the mounting groove, and the mounting plate has an assembly rib on the side near the bottle that can be inserted into the assembly groove. When the handle is installed on the bottle, the assembly rib is inserted into the assembly groove.

[0011] The blow-molded storage bottle assembly with the handle attached as described above has a first reinforcing rib on the inner side of the handle extending from the inner wall of the lower connecting plate to the inner wall of the mounting plate.

[0012] The blow-molded storage bottle assembly with the handle attached as described above also has a second reinforcing rib extending from the inner wall of the upper connecting plate to the inner wall of the mounting plate on the inner side of the handle.

[0013] As described above, in the blow-molded storage bottle assembly with the handle attached to the back, the lower end point of the assembly rib is denoted as N, and the upper end point of the first reinforcing rib on the mounting plate is denoted as P. Then, point P is higher than point N.

[0014] As described above, in the blow-molded storage bottle assembly with the handle attached to the back, the upper end point of the assembly rib is denoted as M, and the lower end point of the second reinforcing rib on the mounting plate is denoted as Q. Then, point Q is lower than point M.

[0015] As described above, the blow-molded storage bottle assembly with the handle attached to the back includes a recessed portion located on the upper part of the bottle body, and the mounting groove, upper mounting slot, and lower mounting slot are distributed in the middle of the recessed portion.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] This utility model's blow-molded storage bottle assembly separates the bottle body and handle. During installation, the lower part of the handle is inserted first, and then the upper part of the handle is snapped in to complete the installation. This structure allows for convenient handle installation, and the entire product structure is more compact and stable. The product is less prone to deformation under stress after the handle is installed, and the connection between the bottle body and the handle is more secure and stable. This allows for the production of thinner bottles during the manufacturing process, saving production materials and improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the blow-molded storage bottle assembly of this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the blow-molded storage bottle assembly of this utility model;

[0020] Figure 3 This is an exploded view of the blow-molded storage bottle assembly of this utility model;

[0021] Figure 4 This is a front view schematic diagram of the handle of this utility model. Detailed Implementation

[0022] The utility model will be further described below with reference to the accompanying drawings:

[0023] The orientations described in this utility model specification, such as "up," "down," "left," "right," "front," and "back," are based on the orientations in the accompanying drawings and are intended to facilitate the description of the relationships between the various components. They do not indicate the unique or absolute positional relationships between the various components, but are merely one embodiment of the utility model and are not a limitation on its implementation.

[0024] This embodiment provides a blow-molded storage bottle assembly with a handle mounted on the back, such as... Figures 1 to 3 As shown, it includes a bottle body 1 and a handle 2. The bottle body 1 is generally made of PET or PC material, and the handle 2 is generally made of PVC or other common plastic materials. Figure 2 and Figure 3As shown, the handle 2 includes a mounting plate 21, with an upper connecting plate 22 and a lower connecting plate 23 connected to its upper and lower ends respectively. A hand grip plate 24 is connected between the upper connecting plate 22 and the lower connecting plate 23. The mounting plate 21, the upper connecting plate 22, the lower connecting plate 23, and the hand grip plate 24 form an enclosed structure for a person's hand to pass through. The bottle body 1 has a recessed area formed by a blow molding process on one side. In this embodiment, the recessed area includes a recessed part 100 set on the upper part of the bottle body 1. That is, the main outline of the upper part of the bottle body 1 is a rotating body, and the recessed part 100 is a recessed shape cut out on the main outline of the bottle body 1. The mounting groove 11, the upper mounting groove 12, and the lower mounting groove 13 are distributed in the middle of the recessed part 100. Of course, the recessed part 100 can also be omitted, and the mounting groove 11, the upper mounting groove 12, and the lower mounting groove 13 can be directly arranged on the outer wall of the bottle body 1. The recessed portion 100 has a mounting groove 11 that matches the shape of the mounting plate 21, an upper mounting groove 12 that matches the shape of the upper connecting plate 22, and a lower mounting groove 13 that matches the shape of the lower connecting plate 23. The bottom of the lower mounting groove 13 has a downwardly recessed first snap-fit ​​hole 14. The bottom of the lower connecting plate 23 has a first tongue 28 that can be inserted into the first snap-fit ​​hole 14. The bottom of the upper mounting groove 12 has an upwardly recessed second snap-fit ​​hole 15. The top of the upper connecting plate 22 has a second tongue 25 that can be inserted into the second snap-fit ​​hole 15. The upper mounting groove 12 is open on the side facing the handle 2, and the open side of the upper mounting groove 12 has a first guide surface 16 for guiding the second tongue 25 into the second snap-fit ​​hole 15 after the first tongue 28 is inserted into the first snap-fit ​​hole 14. During installation, the lower part of the handle 2, the first tongue 28, is inserted into the first locking hole 14. Then, the upper part of the handle 2 is pressed against the bottle body 1. Guided by the first guide surface 16, the second tongue 25 slides into the upper mounting groove 12. During this process, the bottle body 1 and the handle 2 themselves undergo a certain deformation, ultimately causing the second tongue 25 to engage, thus completing the handle installation. This structure allows for convenient handle installation and is structurally stable. The product is less prone to deformation under stress after handle installation, resulting in a more secure and stable connection between the bottle body and the handle. This allows for the production of thinner bottles during manufacturing, saving production materials and improving production efficiency. As a preferred option, such as... Figure 2 and Figure 3 The second tongue 25 is provided with a second guide surface 26 at the top for abutting against the first guide surface 16 when the handle 2 is installed, so as to facilitate the installation of the handle on the bottle body 1.

[0025] like Figure 2 and Figure 3As shown, the top of the handle plate 24 is provided with a mounting surface 27 that matches the shape of the first guide surface 16. When the second tongue 25 is inserted into the second snap-fit ​​hole 15, the mounting surface 27 and the first guide surface 16 fit together to improve the fit between the handle 2 and the bottle body 1, and at the same time improve the stability of the handle connection.

[0026] To further improve the connection between the handle 2 and the bottle body 1, such as Figure 2 and Figure 3 As shown, the bottom of the mounting groove 11 is provided with an assembly groove 17. The mounting plate 21 is provided with an assembly rib 201 on the side near the bottle body 1 that can be inserted into the assembly groove. When the handle 2 is installed on the bottle body 1, the assembly rib 201 is inserted into the assembly groove 17, making it difficult for the handle 2 to swing after installation, thereby improving the installation firmness and preventing the handle 2 from loosening and falling off the bottle body 1 after swinging.

[0027] To improve the structural strength of the handle, such as Figure 2 and Figure 3 As shown, the handle 2 has a first reinforcing rib 202 extending from the inner wall of the lower connecting plate 23 to the inner wall of the mounting plate 21; the handle 2 also has a second reinforcing rib 203 extending from the inner wall of the upper connecting plate 22 to the inner wall of the mounting plate 21.

[0028] As a preferred implementation of this embodiment, such as Figure 2 and Figure 3 As shown, the lower end point of the assembly rib is denoted as N, and the upper end point of the first reinforcing rib 202 on the mounting plate 21 is denoted as P. Point P is higher than point N, which allows the shear stress formed on the mounting plate 21 to be stably transferred to the lower connecting plate 23, resulting in higher bending strength of the handle 2 structure and avoiding stress concentration in the part of the structure between point P and point N, thereby improving the durability of the structure. The upper end point of the assembly rib is denoted as M, and the lower end point of the second reinforcing rib 203 on the mounting plate 21 is denoted as Q, which allows the shear stress formed on the mounting plate 21 to be stably transferred to the upper connecting plate 22, resulting in higher bending strength of the handle 2 structure and avoiding stress concentration in the part of the structure between point Q and point M, thereby improving the durability of the structure.

[0029] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A blow-molded storage bottle assembly with a rear-mounted handle, characterized in that: The container includes a bottle body (1) and a handle (2). The handle (2) includes a mounting plate (21). The upper and lower ends of the mounting plate (21) are respectively connected to an upper connecting plate (22) and a lower connecting plate (23). A hand grip plate (24) is connected between the upper connecting plate (22) and the lower connecting plate (23). The mounting plate (21), the upper connecting plate (22), the lower connecting plate (23), and the hand grip plate (24) form an enclosed structure for a person to pass through. One side of the bottle body (1) is provided with a recessed area formed by a blow molding process. The recessed area includes a mounting groove (11) that matches the shape of the mounting plate (21), an upper mounting groove (12) that matches the shape of the upper connecting plate (22), and a lower mounting groove that matches the shape of the lower connecting plate (23). The lower mounting groove (13) has a first recessed snap-fit ​​hole (14) at the bottom, and the lower connecting plate (23) has a first tongue (28) at the bottom that can be inserted into the first snap-fit ​​hole (14). The upper mounting groove (12) has a second recessed snap-fit ​​hole (15) at the bottom, and the upper connecting plate (22) has a second tongue (25) at the top that can be inserted into the second snap-fit ​​hole (15). The upper mounting groove (12) is open on the side facing the handle (2), and the open side of the upper mounting groove (12) has a first guide surface (16) for guiding the second tongue (25) into the second snap-fit ​​hole (15) after the first tongue (28) is inserted into the first snap-fit ​​hole (14).

2. The blow-molded storage bottle assembly with a handle attached to the rear as described in claim 1, characterized in that: The second tongue (25) is provided with a second guide surface (26) at the top for abutting against the first guide surface (16) when the handle (2) is installed.

3. The blow-molded storage bottle assembly with a handle attached to the rear as described in claim 1, characterized in that: The top of the grip plate (24) is provided with a mounting surface (27) that matches the shape of the first guide surface (16). When the second tongue (25) is inserted into the second snap hole (15), the mounting surface (27) and the first guide surface (16) are in close contact.

4. The blow-molded storage bottle assembly with a handle attached to the rear as described in claim 1, characterized in that: The mounting groove (11) has an assembly groove (17) at the bottom. The mounting plate (21) has an assembly rib (201) on the side near the bottle body (1) that can be inserted into the assembly groove (17). When the handle (2) is installed on the bottle body (1), the assembly rib (201) is inserted into the assembly groove (17).

5. The blow-molded storage bottle assembly with a handle attached to the rear as described in claim 4, characterized in that: The handle (2) is provided with a first reinforcing rib (202) extending from the inner wall of the lower connecting plate (23) to the inner wall of the mounting plate (21).

6. The blow-molded storage bottle assembly with a handle attached to the rear as described in claim 4, characterized in that: The handle (2) is also provided with a second reinforcing rib (203) extending from the inner wall of the upper connecting plate (22) to the inner wall of the mounting plate (21).

7. The blow-molded storage bottle assembly with a handle attached to the rear as described in claim 5, characterized in that: The lower end point of the assembly rib (201) is denoted as N, and the upper end point of the first reinforcing rib (202) on the mounting plate (21) is denoted as P. Point P is higher than point N.

8. The blow-molded storage bottle assembly with a handle attached to the rear as described in claim 6, characterized in that: The upper end point of the assembly rib (201) is denoted as M, and the lower end point of the second reinforcing rib (203) on the mounting plate (21) is denoted as Q. Then point Q is lower than point M.

9. The blow-molded storage bottle assembly with a handle attached according to claim 6, characterized in that: The recessed area includes a recessed portion (100) provided on the upper part of the bottle body (1), and the mounting groove (11), upper mounting groove (12), and lower mounting groove (13) are distributed in the middle of the recessed portion (100).

Citation Information

Patent Citations

  • Plastic kettle inlaid with handle

    CN2145154Y

  • Inserting handle plastic bottle

    CN2184657Y