Weighing handle and backpack with same

Abstract

The utility model relates to a lifting handle and a knapsack, in particular to a weighing lifting handle and a knapsack with the same, which comprise a handle, a sheet-shaped force measuring sensor, a panel and a middle-layer plate, two connecting positions of the handle and the panel are symmetrically arranged; the panel is fixedly connected or integrally connected with two symmetrically-arranged column sets, each column set comprises two symmetrically-arranged connecting columns, and the sheet-shaped force measuring sensor is installed on the side, away from the panel, of the middle-layer plate. The sheet-shaped force measuring sensor comprises a main body part and four elastic force bearing beams which are integrally connected to the main body part, and the elastic force bearing beams are fixedly connected with the connecting columns in a one-to-one mode. The connection between the handle and the sheet-shaped force measuring sensor is realized by arranging the column group, the measurement of the pulling force of the handle can be realized only by adopting one sheet-shaped force measuring sensor, and the measurement result is obtained by directly utilizing the sheet-shaped force measuring sensor, so that the measurement speed is high, and the measurement accuracy is high.

Description

Technical Field

[0001] The utility model relates to a handle and a backpack, in particular to a weighing handle and a backpack with the handle. Background Art

[0002] At present, there are many bags with weighing handles on the market, such as a weighing handle and weighable bags disclosed in the Chinese utility model patent with authorization announcement number CN205162232U, wherein the weighing handle includes a base plate, a PCB board, a display screen, a battery and a handle body, wherein the PCB board is arranged on the base plate, the display screen is arranged on the PCB board and connected to the PCB board, the battery is arranged on one side of the PCB board and connected to the PCB board through the battery sheet; a fixing seat is arranged at both ends of the base plate, the fixing seat is fixed to the base plate by a pin, a force sensor is arranged on the fixing seat, the force sensor is connected to the PCB board, and a through hole is arranged at both ends of the handle body, and the handle body is arranged on the base plate through the cooperation of the fixing seat and the through hole. This type of weighing handle usually requires two force sensors to realize the force measurement of the two connection positions of the handle, and then the weight of the bag is calculated by using the built-in formula, and the measurement speed and measurement accuracy are relatively low.

[0003] In view of this, the applicant conducted in-depth research on the structure of the weighing handle and the backpack with the handle, which resulted in the present case. Utility Model Content

[0004] The utility model aims to provide a weighing handle with fast measuring speed and high measuring accuracy and a backpack with the handle.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A weighing handle comprises a handle, a sheet-shaped force sensor, and a panel and a middle plate arranged in sequence;

[0007] The two ends of the handle are respectively rotatably connected to the side of the panel away from the middle plate, and the two connection positions of the handle and the panel are symmetrically arranged;

[0008] The panel is fixedly connected or integrally connected with two groups of symmetrically arranged column groups on one side facing the middle plate, the symmetry plane between the two connection positions of the handle and the panel coincides with the symmetry plane between the two groups of the column groups, each of the column groups includes two symmetrically arranged connecting columns, and the two connection positions of the handle and the panel are both located on the symmetry plane between the two connecting columns in the same column group;

[0009] The middle plate is provided with through holes which are arranged one by one corresponding to each of the column groups;

[0010] The sheet-shaped force sensor is installed on the side of the middle layer plate facing away from the panel, and the sheet-shaped force sensor includes a main body portion and four elastic load-bearing beams integrally connected to the main body portion respectively. Each of the elastic load-bearing beams is fixedly connected to each of the connecting columns one by one.

[0011] As an improvement of the present utility model, symmetrically arranged connecting beams are integrally connected to both ends of the main body portion respectively. Support portions are integrally connected to the ends of each connecting beam away from the main body portion. One elastic load-bearing beam is arranged on each side of each connecting beam. The elastic load-bearing beams on both sides of the same connecting beam are symmetrically arranged, and the elastic load-bearing beams on the same side of the connecting beam are symmetrically arranged and located on the same straight line.

[0012] As an improvement of the present utility model, a buckle is arranged on the middle layer plate, and the main body portion is buckled on the buckle.

[0013] As an improvement of the present utility model, a bottom plate detachably and fixedly connected to the side of the middle layer plate facing away from the panel is further included. The sheet-shaped force sensor is located between the middle layer plate and the bottom plate.

[0014] As an improvement of the present utility model, a mounting plate detachably and fixedly connected to the bottom plate is further included. A hollowed-out area is arranged in the middle of the mounting plate.

[0015] As an improvement of the present utility model, a circuit board electrically connected to the sheet-shaped force sensor is further installed on the side of the middle layer plate facing away from the panel. A wiring head is fixedly connected to the circuit board. A through hole for inserting the wiring head is opened on the bottom plate, and the through hole is located at a position corresponding to the hollowed-out area.

[0016] As an improvement of the present utility model, a speaker and / or a display board are further arranged on the middle layer plate. A speaker opening matched with the speaker and / or a display opening matched with the display panel are opened on the panel.

[0017] As an improvement of the present utility model, a spring abuts against the side of the circuit board facing the panel. The spring passes through the middle layer plate and abuts against the panel.

[0018] A backpack includes a backpack body, and the above-mentioned weighing handle is arranged on the upper part of the backpack body.

[0019] Adopting the above scheme, the present utility model has the following beneficial effects:

[0020] 1. By setting up a column group, the connection between the handle and the sheet - type force - measuring sensor is realized. Only one sheet - type force - measuring sensor is needed to measure the pulling force of the handle, and the measurement result can be directly obtained by using the sheet - type force - measuring sensor. The measurement speed is fast and the measurement accuracy is high.

[0021] 2. The elastic load - bearing beam of the sheet - type force - measuring sensor adopted in the utility model adopts a four - point layout and is symmetrically arranged in both the transverse and longitudinal directions. The structural stability is good, which can well solve the weighing inaccuracy caused by the fatigue life of the sensor during long - term use. The stress area is large, which can penetrate both the transverse and longitudinal directions, and the force is balanced and stable. The anti - fatigue ability is high after long - term use, and the service life is long.

[0022] 3. The four - point layout enables the elastic load - bearing beam to deform around the center of the main body part, forming a rectangular stress surface, which can balance the stress points in the transverse and longitudinal directions, improve the measurement accuracy during shaking, reduce the bending deformation amount of the steel sheet under the same pulling force, which is beneficial to increasing the fatigue life of the product. And because the stress surface is large, it can balance the weight of the backpack more quickly when lifting and weighing, so as to weigh the weight more quickly.

[0023] 4. When the elastic load - bearing beam of the sheet - type force - measuring sensor is deformed by force, among the two symmetrically arranged elastic load - bearing beams, one is compressed and the other is stretched to form a deformation. A pressure difference is formed between the compression and the tension, and the output sensitivity is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the weighing handle of the utility model;

[0025] Figure 2 is a sectional structural diagram of the weighing handle of the utility model;

[0026] Figure 3 is an exploded structural diagram of the weighing handle of the utility model;

[0027] Figure 4 is an exploded structural diagram of the weighing handle of the utility model from another perspective.

[0028] The labels in the figures correspond as follows:

[0029] 10 - handle; 20 - sheet - type force - measuring sensor;

[0030] 21 - main body part; 22 - elastic load - bearing beam;

[0031] 23 - connecting beam; 24 - supporting part;

[0032] 30 - panel; 31 - connecting column;

[0033] 32 - bell mouth; 33 - display port;

[0034] 40-middle board; 41-perforation;

[0035] 42- buckle; 43- speaker;

[0036] 44-display panel; 50-bottom panel;

[0037] 51-through hole; 60-mounting plate;

[0038] 61-Hollowout area DETAILED DESCRIPTION

[0039] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] The present embodiment provides a backpack, including a conventional backpack body, with a weighing handle provided on the upper portion of the backpack body, so that the weight of the backpack can be measured by lifting the weighing handle. Of course, the weighing handle used in the present embodiment can also be sold independently or used on bags such as tote bags or suitcases. In other words, the present embodiment essentially also provides a weighing handle.

[0041] like Figures 1 - 4 As shown, the weighing handle provided in the present embodiment includes a handle 10, a sheet-like force sensor 20, and a panel 30 and a middle plate 40 arranged in sequence. The middle plate 40 can be directly fixedly connected to the backpack body. In order to avoid the middle plate 40 being bent during use and affecting the force on the sheet-like force sensor 20, the weighing handle provided in the present embodiment also includes a bottom plate 50 that is detachably fixedly connected to the side of the middle plate 40 away from the panel 30 by screws. In order to facilitate the fixing of the weighing handle to the backpack body, the weighing handle provided in the present embodiment also includes a mounting plate 60 that is detachably fixedly connected to the bottom plate 50 by screws. In this way, the fabric of the backpack body can be clamped between the bottom plate 50 and the mounting plate 60, thereby realizing the connection between the weighing handle and the backpack body, and convenient maintenance and disassembly.

[0042] The two ends of the handle 10 are respectively rotatably connected to the side of the panel 30 away from the middle plate 40. The specific rotation connection structure is the same as that of a conventional backpack handle, which is not the focus of this embodiment and will not be described in detail here. The two connection positions of the handle 10 and the panel 30 are arranged symmetrically with each other and the two rotation axes are arranged coaxially.

[0043] On one side of the panel 30 facing the middle layer board 40, there are two groups of symmetrically arranged column groups fixedly connected or integrally connected. The symmetry plane between the two connection positions of the handle 10 and the panel 30 coincides with the symmetry plane between the two groups of column groups. That is to say, the arrangement direction of the column groups is the same as the length direction of the handle 10. In addition, the distance between the end of the handle 10 and the column group on the same side as the end should be as small as possible, which helps to improve the accuracy and stability of force transmission. Each column group includes two symmetrically arranged connecting columns 31. The two connection positions of the handle 10 and the panel 30 are both located on the symmetry plane between the two connecting columns 31 in the same column group. That is to say, the connecting columns 31 in the column group are arranged along the width direction of the handle 10 and are symmetrically arranged with respect to the central plane of the handle 10.

[0044] On the middle layer board 40, there are perforations 41 respectively arranged in one-to-one correspondence with each column group, so that the connecting columns 31 can pass through the middle layer board 40 to be connected with the sheet-shaped force sensor 20. The middle layer board 40 abuts against the panel 30. The sheet-shaped force sensor 20 is installed on the side of the middle layer board 30 away from the panel 30. Specifically, there are buckles 42 on the middle layer board 40, and the main body 21 (to be mentioned below) of the sheet-shaped force sensor 20 is buckled on the buckles 42.

[0045] The sheet-shaped force sensor 20 is located between the middle layer board 40 and the bottom board 50. The sheet-shaped force sensor 20 is integrally in a planar rectangular shape. It includes a main body 21 and four elastic load-bearing beams 22 respectively integrally connected to the main body 21. Each elastic load-bearing beam 22 is fixedly connected to each connecting column 31 one by one, so as to apply the lifting force of the handle to each elastic load-bearing beam 22 through the connecting column 31. At both ends of the main body 21, there are symmetrically arranged connecting beams 23 respectively integrally connected. At the end of each connecting beam 23 away from the main body 21, there is a support part 24 respectively integrally connected and abutting against the middle layer board 40. The corresponding connecting beam 23 and the support part 24 are arranged in a T shape. There is an elastic load-bearing beam 22 on both sides of each connecting beam 23. The elastic load-bearing beams 22 on both sides of the same connecting beam 23 are symmetrically arranged. The elastic load-bearing beams 22 on the same side of the connecting beam 23 are also symmetrically arranged and on the same straight line, so that the four elastic load-bearing beams 22 are arranged in a rectangle.

[0046] Preferably, on the side of the middle layer board 40 facing away from the panel 30, a circuit board 70 electrically connected to the sheet-like force sensor 20 and a power supply (not shown in the figure) for supplying power to the circuit board 70 are further installed. A speaker 43 and a display board 44 are also provided on the middle layer board 40. Of course, according to actual needs, only the speaker 43 or the display board 44 can be retained, or other functional electronic components, such as a positioning module, can be provided on the middle layer board 40. A speaker opening 32 cooperating with the speaker 43 and a display opening 33 cooperating with the display panel 44 are provided on the panel 30 to fully exert the functions of the corresponding components. Of course, if only the speaker 43 or the display board 44 is retained, only the corresponding speaker opening 32 or display opening 33 needs to be provided on the panel 30.

[0047] In order to facilitate charging or connecting other devices, in this embodiment, a hollowed-out area 61 is provided in the middle of the mounting plate 60. A wiring head 71 is fixedly connected to the circuit board 70, and a through hole 51 for inserting the wiring head 71 is provided on the bottom plate 50. The through hole 51 is located at a position corresponding to the hollowed-out area 61. In this way, the wiring head 71 can be used without disassembling the mounting plate 60.

[0048] In addition, a spring 72 abuts against the side of the circuit board 70 facing the panel 30. The spring 72 passes through the middle layer board 40 and abuts against the panel 300. Of course, a through hole for the spring 72 to pass through needs to be provided on the middle layer board 40.

[0049] The above has made a detailed description of the present invention in conjunction with the drawings. However, the implementation manners of the present invention are not limited to the above implementation manners. Those skilled in the art can make various equivalent replacements to the present invention according to the prior art, and these all belong to the protection scope of the present invention.

Claims

1. A weighing handle, characterized in that: It includes a handle, a sheet-shaped force sensor, and a panel and a middle plate arranged in sequence; The two ends of the handle are respectively rotatably connected to the side of the panel away from the middle plate, and the two connection positions of the handle and the panel are symmetrically arranged; The panel is fixedly connected or integrally connected with two groups of symmetrically arranged column groups on one side facing the middle plate, the symmetry plane between the two connection positions of the handle and the panel coincides with the symmetry plane between the two groups of the column groups, each of the column groups includes two symmetrically arranged connecting columns, and the two connection positions of the handle and the panel are both located on the symmetry plane between the two connecting columns in the same column group; The middle plate is provided with through holes which are arranged one by one corresponding to each of the column groups; The sheet-like force sensor is installed on the side of the middle plate away from the panel, and the sheet-like force sensor includes a main body and four elastic load-bearing beams integrally connected to the main body, and each of the elastic load-bearing beams is fixedly connected to each of the connecting columns one by one.

2. The weighing handle according to claim 1, characterized in that: Both ends of the main body are respectively integrally connected with symmetrically arranged connecting beams, and one end of each connecting beam away from the main body is respectively integrally connected with a supporting portion, and an elastic load-bearing beam is provided on both sides of each connecting beam, and the elastic load-bearing beams on both sides of the same connecting beam are symmetrically arranged, and the elastic load-bearing beams located on the same side of the connecting beam are symmetrically arranged and located on the same straight line.

3. The weighing handle according to claim 1, characterized in that: The middle plate is provided with a buckle, and the main body is buckled on the buckle.

4. The weighing handle according to claim 1, characterized in that: It also includes a bottom plate which is detachably fixedly connected to the side of the middle plate facing away from the panel, and the sheet-like force sensor is located between the middle plate and the bottom plate.

5. The weighing handle according to claim 4, characterized in that: It also includes a mounting plate which is detachably fixedly connected to the base plate, and a hollow area is arranged in the middle of the mounting plate.

6. The weighing handle according to claim 5, characterized in that: A circuit board electrically connected to the sheet-like force sensor is also installed on the side of the middle layer board facing away from the panel, a wiring head is fixedly connected to the circuit board, a through hole for inserting the wiring head is opened on the bottom plate, and the through hole is located at a position corresponding to the hollow area.

7. The weighing handle according to claim 6, characterized in that: The middle layer board is also provided with a speaker and / or a display board, and the panel is provided with a speaker mouth matched with the speaker and / or a display port matched with the display board.

8. The weighing handle according to claim 6, characterized in that: A spring is pressed against a side of the circuit board facing the panel, and the spring passes through the middle plate and presses against the panel.

9. A backpack, characterized in that: The backpack comprises a backpack body, wherein the upper part of the backpack body is provided with a weighing handle as claimed in any one of claims 1 to 7.

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