A weighing device for luggage

By integrating a weighing device with a built-in gravity sensor and display into the bag, the problem of inaccurate weighing of bags has been solved, achieving high-precision and low-cost weight measurement and improving the user experience.

CN224461230UActive Publication Date: 2026-07-07ZHEJIANG KEEPLONG PRECISION MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG KEEPLONG PRECISION MACHINERY
Filing Date
2025-07-24
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing bags lack weighing functions, resulting in inaccurate weight measurement, and their mechanical structures are prone to damage and have high maintenance costs.

Method used

The base assembly, which incorporates a built-in gravity sensor, along with a display and buttons, reduces environmental impact through a simple structural design, achieves accurate weighing, and enhances stability through support feet and reinforcing ribs.

Benefits of technology

It achieves high-precision and convenient weight measurement, reduces mechanical errors and maintenance costs, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of for luggage's weighing device, belong to luggage technical field.It solves the existing travel to the luggage weight weighing troublesome problem.The utility model includes box, base assembly, lock.Locker is fixedly connected on the box, and four base assemblies are installed on the other side symmetrical to the box.The lock includes lock shell, display, button, combination lock component.The base assembly includes shell, cover plate and support leg, and the shell is divided into hard shell part and soft shell part of stretchable bending.The shell inner wall has connecting column and protruding portion.The shell inside is equipped with cavity, from top to bottom respectively there is cover plate, gravity sensor, contact piece and support leg, and the cover plate is connected with gravity sensor below.The gravity sensor below has contact piece, and the contact piece is connected with support leg.The lower part of support leg is connected with shell bottom, and the contact piece and support leg can move up and down in shell.The utility model has the advantages of high practicality, high precision.
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Description

Technical Field

[0001] This utility model belongs to the field of luggage technology, and in particular, it is a weighing device for luggage. Background Technology

[0002] Luggage is commonly used to store travel items, and there are weight requirements for luggage when traveling. Common household scales cannot measure body weight, and most luggage and suitcases on the market lack weighing functions. This makes it unclear whether stored items meet the weight requirements of airlines, high-speed trains, etc., causing inconvenience when traveling.

[0003] Announcement No. CN222397370U discloses a side handle for weighing bags. When the side handle is pulled, the lateral displacement of the linkage varies, resulting in different pointer readings, from which the corresponding weight can be read, thus achieving weighing. The weighing method mainly calculates the weight based on the lateral displacement of the side handle. The mechanical structure requires routine maintenance, such as lubrication; otherwise, it is prone to errors, and these errors can be significant, causing inconvenience. Secondly, the mechanical structure is usually made of metal, making it heavy. The side handle is frequently used during travel; damage to it increases the cost of replacement or repair. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a weighing device for bags and luggage that is highly accurate and convenient to use.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A weighing device for bags includes a case body, base assemblies, and a lock. The lock is fixedly connected to the case body, and four base assemblies are installed on the opposite side of the case body symmetrically.

[0007] The lock includes a lock case, a display, buttons, and a combination lock assembly.

[0008] The base assembly includes a housing, a cover plate, and support feet. The housing is divided into a rigid shell section and a flexible, stretchable shell section. Connecting posts and protrusions are located on the inner wall of the housing.

[0009] The housing has an internal cavity, and from top to bottom there are a cover plate, a gravity sensor, a contact element and a support foot, with the gravity sensor connected to the bottom of the cover plate.

[0010] The gravity sensor has a contact element below it, which is connected to a support foot. The lower part of the support foot is connected to the bottom of the housing, and the contact element and the support foot can move up and down inside the housing.

[0011] Preferably, the cover plate is provided with a connection hole through which a screw can pass, and the base assembly can be fixedly connected to the housing by screws and connecting posts.

[0012] Preferably, the housing is also provided with a support column, the upper surface of which is connected to the lower surface of the cover plate.

[0013] Preferably, the cover plate is provided with a first groove, and the gravity sensor can be snapped into the first groove.

[0014] Preferably, the cover plate has a snap fastener that can be engaged with the protrusion.

[0015] Preferably, the support foot is provided with a second groove, and the connector can be locked into the second groove from the left and right.

[0016] Preferably, the connecting column is externally connected with reinforcing ribs.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. This utility model incorporates a gravity sensor in the base assembly. Through a simple structural design, it reduces the impact of the environment on the gravity sensor during the measurement process, resulting in more accurate measurement data and easier installation on the bag body.

[0019] 2. This utility model adds a display and buttons to the box, which not only makes it easier to read the value, but also allows it to be turned off and used as needed, making it highly practical. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the assembly structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the lock structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the base assembly of this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of the base assembly of this utility model;

[0024] Figure 5 This is a schematic diagram of the shell structure of this utility model.

[0025] In the diagram, 1. Box body;

[0026] 2. Base assembly; 21. Housing; 22. Cover plate; 23. Supporting foot; 221. First groove;

[0027] 3. Lock; 31. Lock case; 32. Display; 33. Button; 34. Combination lock assembly;

[0028] 4. Connecting column;

[0029] 5. Protruding part;

[0030] 6. Contact components

[0031] 7. Gravity sensor

[0032] 8. Connecting hole

[0033] 9. Support column

[0034] 10. Reinforcing ribs

[0035] 11. Buckle

[0036] 12. Second slot Detailed Implementation

[0037] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0038] like Figure 1-5 As shown, a weighing device for bags includes a box body 1, a base assembly 2, and a lock 3. The lock 3 is fixedly connected to the box body 1, and four base assemblies 2 are installed on the other side of the box body symmetrically.

[0039] The lock 3 includes a lock shell 31, a display 32, a button 33, and a combination lock assembly 34.

[0040] The base assembly 2 includes a housing 21, a cover plate 22 and a support foot 23. The housing 21 is divided into a hard shell part 211 and a soft shell part 212. The inner wall of the housing 21 has a connecting column 4 and a protrusion 5.

[0041] The housing 21 has an internal cavity, and from top to bottom, it comprises a cover plate 22, a gravity sensor 7, a contact element 6, and a support foot 23. The gravity sensor 7 is connected to the bottom of the cover plate 22.

[0042] Below the gravity sensor 7 is a contact member 6, which is connected to the support foot 23. The lower part of the support foot 23 is connected to the bottom of the housing 21. The contact member 6 and the support foot 23 can move up and down within the housing 21.

[0043] In this invention, a screw can be fixed inside the connecting column 5, and the base assembly can be fixed to the box body by tightening the screw. The protrusion 5 can fix the cover plate with the snap-fit ​​structure.

[0044] The weighing process involves placing the suitcase on its side. Due to the strong support force of the support legs 23 and the weak support force of the circular crystal on the gravity sensor, the circular crystal undergoes deformation within a certain range. The weight of the suitcase is calculated based on the degree of deformation of the gravity sensor and the data is transmitted. The specific weight is then received by the built-in receiver on the display and shown. The soft shell portion 212 of the housing 21 can be stretched and bent to ensure that the relative position of the support legs 23 and the housing 21 can move.

[0045] The lock 3 is equipped with a button 33 for controlling the display 32. When the weighing function is not in use, it can be turned off directly to extend the usage time.

[0046] like Figure 5 As shown, the cover plate 22 is provided with a connecting hole 8 through which screws or rivets can pass, and the base assembly 2 can be fixedly connected to the connecting column 4 on the box body by screws or rivets.

[0047] like Figure 5 As shown, a support column 9 is also provided inside the housing 21, and the upper surface of the support column 9 is connected to the lower surface of the cover plate 22. During the carrying of the bag, the support column 9 holds the cover plate 22 against it, preventing the cover plate 22 from deforming excessively under the weight of the bag and causing the gravity sensor to be squeezed.

[0048] like Figure 4 As shown, the cover plate 22 is provided with a first groove 221, and the gravity sensor 7 can be snapped into the first groove 221.

[0049] In this invention, the first groove 221 on the cover plate 22 also has a supporting function. When the gravity sensor is squeezed and deformed far beyond the gravity range, the groove of the first groove 221 can directly abut against the support foot 23, thereby protecting the gravity sensor.

[0050] like Figure 4 As shown, the cover plate 22 has a buckle 11, which can be engaged with the protrusion 5. By engaging the protrusion 5 with the buckle 11, the interior of the housing 22 can be covered, ensuring the uniformity of the internal space environment.

[0051] like Figure 4 As shown, the support foot 23 is provided with a second groove 12, and the connector 6 can be locked in the second groove 12 from left to right. The connector 6 is made of metal, and by setting the second groove 12 to restrict its left and right movement, it can ensure its contact with the gravity sensor and ensure the accuracy of the measurement process.

[0052] like Figure 5 As shown, the connecting column 4 is externally connected to a reinforcing rib 10. The reinforcing rib 10 can enhance the strength of the base assembly 2, making it more stable and secure after installation.

[0053] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0054] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Meanwhile, the meaning of "and / or" throughout the text includes three solutions. Taking "a weighing device for bags and / or B" as an example, it includes a weighing device solution for bags, solution B, or a weighing device for bags and solution B simultaneously. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0055] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0056] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0057] Although this document uses terms such as box, base assembly, shell, cover plate, support foot, first groove, etc., the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A weighing device for bags, comprising a box body (1), a base assembly (2), and a lock (3); the lock (3) is fixedly connected to the box body (1), and four base assemblies (2) are installed on the other side of the box body symmetrically. The lock (3) includes a lock shell (31), a display (32), a button (33), and a combination lock assembly (34); The base assembly (2) includes a housing (21), a cover plate (22), and support feet (23); the housing (21) is divided into a hard shell part (211) and a soft shell part (212); the inner wall of the housing (21) has connecting posts (4) and protrusions (5); The housing (21) has a cavity inside, and from top to bottom there is a cover plate (22), a gravity sensor (7), a contact (6) and a support foot (23); the gravity sensor (7) is connected to the bottom of the cover plate (22). The gravity sensor (7) has a contact (6) below it, which is connected to the support foot (23); the lower part of the support foot (23) is connected to the bottom of the housing (21); the contact (6) and the support foot (23) can move up and down inside the housing (21).

2. A weighing device for bags and luggage according to claim 1, characterized in that, The cover plate (22) is provided with a connecting hole (8) through which a screw can pass, and the base assembly (2) can be fixedly connected to the box body by screws and connecting post (4).

3. A weighing device for bags and luggage according to claim 2, characterized in that, The housing (21) is also provided with a support column (9), the upper surface of which is connected to the lower surface of the cover plate (22).

4. A weighing device for bags according to claim 3, characterized in that, The cover plate (22) is provided with a first groove (221), and the gravity sensor (7) can be snapped into the first groove (221).

5. A weighing device for bags according to claim 4, characterized in that, The cover plate (22) has a buckle (11) that can be engaged with the protrusion (5).

6. A weighing device for bags according to claim 5, characterized in that, The support foot (23) is provided with a second groove (12), and the connector (6) can be locked in the second groove (12) from left to right.

7. A weighing device for bags according to claim 6, characterized in that, The connecting column (4) is externally connected to a reinforcing rib (10).