Hand power generation electronic scale

Abstract

The utility model discloses a hand-cranking power generation electronic scale which comprises a scale body, a power generation gear assembly and a generator assembly are arranged in the scale body, an output shaft of the power generation gear assembly is rotatably connected with an input shaft of the generator assembly, a handle is arranged outside the scale body, and the handle is arranged on the input shaft of the power generation gear assembly. The handle comprises an upper shell, a lower shell and a holding rod, the holding rod is arranged on the lower shell, a first limiting block and a second limiting block are arranged on the upper shell, a clamping piece is arranged on the lower shell, a first state and a second state are formed between the upper shell and the lower shell, and in the first state, the upper end of the lower shell abuts against the lower end of the upper shell, and the clamping piece abuts against the first limiting block. Through the structure, the hand-cranking power generation function of the electronic scale is realized, and the electronic scale can be conveniently used under the conditions of external power failure and power failure of the electronic scale; a user can drive the power generation gear assembly to rotate in a more labor-saving manner by adjusting the length of the handle, and the power generation rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic scales, in particular to a hand-cranked power generation electronic scale. Background Art

[0002] An electronic scale is a tool for weighing an object. In the prior art, a battery is provided inside the electronic scale. When there is a power outage and the battery is out of power, the electronic scale cannot be used, which brings certain inconvenience to the user. Improvements are needed. Summary of the invention

[0003] The utility model aims at the defects in the prior art that the electronic scale cannot be used when the external power is cut off and the storage battery is out of power, and provides a new hand-cranked power generation electronic scale.

[0004] In order to solve the above technical problems, the utility model is implemented through the following technical solutions:

[0005] A hand-cranked power generation electronic scale comprises a scale body, wherein a power generation gear assembly and a generator assembly are arranged in the scale body, the output shaft of the power generation gear assembly is rotatably connected with the input shaft of the generator assembly, a handle is arranged outside the scale body, the input shaft of the power generation gear assembly passes through the scale body, and the handle is arranged on the input shaft of the power generation gear assembly; the handle comprises an upper shell, a lower shell and a gripping rod, the gripping rod is arranged on the lower shell, a first limit block and a second limit block are arranged on the upper shell, a moving interval is formed between the first limit block and the second limit block, a clamping piece is arranged on the lower shell, the clamping piece passes through the moving interval, a first state and a second state are formed between the upper shell and the lower shell, in the first state, the upper end of the lower shell is pressed against the lower end of the upper shell, the clamping piece abuts against the first limit block, and in the second state, the upper end of the lower shell is separated from the upper end of the lower shell, and the clamping piece abuts against the second limit block.

[0006] The arrangement of the handle, the generator assembly and the generator gear assembly realizes the hand-cranked power generation function of the electronic scale, which is convenient for using the electronic scale when there is an external power outage and the electronic scale has no power, thereby improving the functionality of the electronic scale; the handle length can be adjusted through the clamping part, the first limit block and the second limit block, thereby changing the input rotation radius of the generator gear assembly when the handle is rotated, so that the user can drive the generator gear assembly to rotate with more effort, thereby improving the power generation rate.

[0007] Preferably, in the above-mentioned hand-cranked generator electronic scale, the lower surface of the scale body protrudes downward to form a mounting cavity, and the generator gear assembly is arranged in the mounting cavity.

[0008] The setting of the installation cavity provides installation space for the generator gear assembly, thereby protecting the generator gear assembly and facilitating the installation of the generator gear assembly.

[0009] Preferably, in the above-mentioned hand-cranked generator electronic scale, the generator gear assembly includes a multi-stage input gear, an output gear and a rotating shaft mounting seat, the input shaft of the multi-stage input gear passes through the rotating shaft mounting seat, the handle is arranged on the input shaft of the multi-stage input gear, the input shaft of the generator assembly is rotatably arranged on the rotating shaft mounting seat, the output gear is arranged on the input shaft of the generator assembly, and the multi-stage input gear is meshed with the output gear.

[0010] The arrangement of the multi-stage input gear and the output gear facilitates the application of force to the input shaft of the generator assembly for rotation. The shaft mounting seat provides an installation position for the shaft of the multi-stage input gear and the input shaft of the generator assembly, thus avoiding the situation in which the scale body is directly installed on the scale body and causes wear of the scale body due to the rotation of the shaft.

[0011] Preferably, in the hand-cranked electronic power-generating scale described above, the scale body is detachably provided with scale feet, the scale feet are provided with threaded rods, the width of the scale feet is greater than the width of the threaded rod, the scale body is provided with threaded holes, the threaded rods are inserted into the threaded holes and threadedly connected.

[0012] By adjusting the depth of the threaded rod inserted into the threaded hole, the scale body can be raised or lowered, making it convenient for the user to smoothly turn the handle.

[0013] Preferably, in the above-mentioned hand-cranked power generation electronic scale, a fixing column is arranged on the inner wall of the bottom of the scale body, and the threaded hole is arranged on the fixing column.

[0014] The provision of the fixing column increases the depth of the threaded hole, and further improves the stability of the threaded connection between the threaded rod and the threaded hole.

[0015] Preferably, in the hand-cranked electronic power generating scale described above, a fastening ring and a reinforcing rib are arranged on the inner wall of the bottom of the scale body, the fastening ring and the fixed column are coaxially arranged, the reinforcing rib is arranged between the fastening ring and the fixed column, one end of the reinforcing rib is arranged on the outer wall of the fixed column, and the other end of the reinforcing rib is arranged on the fastening ring.

[0016] The provision of the fastening ring and the reinforcing ribs increases the structural strength of the fixing column and can apply pressure to the outer side wall of the fixing column, thereby preventing the threaded rod from breaking the fixing column. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the handle of the utility model in the first state;

[0018] Figure 2 It is a partial structural schematic diagram of the handle in the first state and the power generation gear assembly and the generator assembly of the utility model;

[0019] Figure 3 This is an exploded schematic diagram of the scale foot and scale body of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the handle of the utility model in the second state. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 The present invention is further described in detail with the following specific embodiments, but they are not intended to limit the present invention:

[0022] Example 1

[0023] like Figure 1-Figure 4 As shown, a hand-cranked power generation electronic scale comprises a scale body 1, wherein a power generation gear assembly 2 and a generator assembly 3 are arranged inside the scale body 1, wherein the output shaft of the power generation gear assembly 2 is rotatably connected with the input shaft of the generator assembly 3, and a handle 4 is arranged outside the scale body 1, wherein the input shaft of the power generation gear assembly 2 passes through the scale body 1, and the handle 4 is arranged on the input shaft of the power generation gear assembly 2; the handle 4 comprises an upper shell 41, a lower shell 42 and a grip 43, wherein the grip 43 is arranged on the lower shell 42, and a first limit block 411 and a second limit block 412 are arranged on the upper shell 41 Block 412, a moving interval 5 is formed between the first limit block 411 and the second limit block 412, a clamping piece 421 is provided on the lower shell 42, and the clamping piece 421 is penetrated in the moving interval 5, a first state and a second state are formed between the upper shell 41 and the lower shell 42, in the first state, the upper end of the lower shell 42 is pressed against the lower end of the upper shell 41, and the clamping piece 421 is abutted against the first limit block 411, in the second state, the upper end of the lower shell 42 is separated from the upper end of the lower shell 42, and the clamping piece 421 is abutted against the second limit block 412.

[0024] Preferably, a mounting cavity 11 is formed on the lower surface of the scale body 1 and protrudes downward, and the power generation gear assembly 2 is arranged in the mounting cavity 11 .

[0025] Preferably, the power generation gear assembly 2 includes a multi-stage input gear 21, an output gear 22 and a rotating shaft mounting seat 23, the input shaft of the multi-stage input gear 21 passes through the rotating shaft mounting seat 23, the handle 4 is set on the input shaft of the multi-stage input gear 21, the input shaft of the generator assembly 3 is rotatably set on the rotating shaft mounting seat 23, the output gear 22 is set on the input shaft of the generator assembly 3, and the multi-stage input gear 21 is meshed with the output gear 22.

[0026] Preferably, the scale body 1 is detachably provided with a scale foot 6, the scale foot 6 is provided with a threaded rod 61, the width of the scale foot 6 is greater than the width of the threaded rod 61, the scale body 1 is provided with a threaded hole 12, the threaded rod 61 is inserted into the threaded hole 12 and threadedly connected.

[0027] Preferably, a fixing column 13 is provided on the inner side wall of the bottom of the scale body 1 , and the threaded hole 12 is provided on the fixing column 13 .

[0028] Preferably, a fastening ring 14 and a reinforcing rib 15 are provided on the inner wall of the bottom of the scale body 1, the fastening ring 14 and the fixed column 13 are coaxially arranged, the reinforcing rib 15 is arranged between the fastening ring 14 and the fixed column 13, one end of the reinforcing rib 15 is arranged on the outer wall of the fixed column 13, and the other end of the reinforcing rib 15 is arranged on the fastening ring 14.

[0029] Specifically, Figure 1 , Figure 3 As shown, the scale body 1 includes an upper cover and a lower cover, and the lower surface of the lower cover protrudes downward to form an installation cavity 11, and the installation cavity 11 is square. In the embodiment of the present application, the number of the scale foot 6 and the fixing column 13 is set to four, and a plurality of protrusions protruding outward are formed on the circumferential outer side wall of the scale foot 6, so that a placement area is formed between adjacent protrusions, which is convenient for users to rotate the scale foot 6. The threaded rod 61 is hollow inside, which reduces the weight of the scale foot 6.

[0030] More specifically, Figure 2 , Figure 4 As shown, an extension column with a hollow interior is integrally formed on the upper shell 41, and the upper shell 41 is fixed to the input shaft of the power generation gear assembly 2 through the extension column. The number of the clamping piece 421, the first limit block 411, and the second limit block 412 is set in two groups and symmetrically distributed on the left and right sides of the handle 4. The clamping piece 421 is in a positive T shape and extends in the height direction. The inner diameter of the grip 43 gradually increases away from the lower shell 42, and the grip 43 is hollow inside, thereby preventing the grip 43 from detaching from the user's hand.

[0031] More specifically, when hand-cranking is required to generate electricity, the user can adjust the handle 4 to the first state or the second state for use. Figure 1 , Figure 2 As shown, the lower shell 42 is pushed upward until the clamping member 421 is pressed against the lower surface of the first limit block 411, and then the handle 4 can be rotated to drive the power generation gear assembly 2 to rotate. Figure 3 , Figure 4 As shown, the lower shell 42 is pulled downward until the clamping piece 421 is pressed against the upper surface of the second limit block 412, and the scale foot 6 is rotated to move the threaded rod 61 downward to a suitable position. At this time, the handle 4 can be rotated to drive the generator gear assembly 2 to rotate and generate electricity.

[0032] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the patent application for the present invention should fall within the scope of the present invention.

Claims

1. A hand-cranked electronic scale, comprising a scale body (1), characterized in that: A power generation gear assembly (2) and a generator assembly (3) are arranged inside the scale body (1); the output shaft of the power generation gear assembly (2) is rotatably connected to the input shaft of the generator assembly (3); a handle (4) is arranged outside the scale body (1); the input shaft of the power generation gear assembly (2) passes through the scale body (1); and the handle (4) is arranged on the input shaft of the power generation gear assembly (2); the handle (4) comprises an upper shell (41), a lower shell (42) and a grip (43); the grip (43) is arranged on the lower shell (42); the upper shell (41) is provided with a first limit block (411) and a second limit block (412); A moving interval (5) is formed between the first limiting block (411) and the second limiting block (412); a clamping piece (421) is provided on the lower shell (42); the clamping piece (421) is inserted into the moving interval (5); a first state and a second state are formed between the upper shell (41) and the lower shell (42); in the first state, the upper end of the lower shell (42) is pressed against the lower end of the upper shell (41), and the clamping piece (421) is pressed against the first limiting block (411); in the second state, the upper end of the lower shell (42) is separated from the upper end of the lower shell (42), and the clamping piece (421) is pressed against the second limiting block (412).

2. A hand-cranked electronic scale according to claim 1, characterized in that: The lower surface of the scale body (1) protrudes downward to form an installation cavity (11), and the power generation gear assembly (2) is arranged in the installation cavity (11).

3. A hand-cranked electronic scale according to claim 2, characterized in that: The power generation gear assembly (2) comprises a multi-stage input gear (21), an output gear (22) and a rotating shaft mounting seat (23); the input shaft of the multi-stage input gear (21) passes through the rotating shaft mounting seat (23); the handle (4) is arranged on the input shaft of the multi-stage input gear (21); the input shaft of the generator assembly (3) is rotatably arranged on the rotating shaft mounting seat (23); the output gear (22) is arranged on the input shaft of the generator assembly (3); and the multi-stage input gear (21) is meshed with the output gear (22).

4. A hand-cranked electronic scale according to claim 1, characterized in that: The scale body (1) is provided with a detachable scale foot (6), the scale foot (6) is provided with a threaded rod (61), the width of the scale foot (6) is greater than the width of the threaded rod (61), the scale body (1) is provided with a threaded hole (12), the threaded rod (61) is inserted into the threaded hole (12) and is threadedly connected.

5. A hand-cranked electronic scale according to claim 4, characterized in that: A fixing column (13) is arranged on the inner side wall of the bottom of the scale body (1), and the threaded hole (12) is arranged on the fixing column (13).

6. A hand-cranked electronic scale according to claim 5, characterized in that: A fastening ring (14) and a reinforcing rib (15) are arranged on the inner side wall of the bottom of the scale body (1); the fastening ring (14) and the fixing column (13) are coaxially arranged; the reinforcing rib (15) is arranged between the fastening ring (14) and the fixing column (13); one end of the reinforcing rib (15) is arranged on the outer side wall of the fixing column (13); and the other end of the reinforcing rib (15) is arranged on the fastening ring (14).

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