CN214017544U

CN214017544U - Body fat scale

Info

Publication number: CN214017544U
Application number: CN202022516756.5U
Authority: CN
Inventors: 朱洪彬
Original assignee: Shenzhen Yolanda Technology Co ltd
Current assignee: Shenzhen Yolanda Technology Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-08-24
Anticipated expiration: 2030-11-03
Also published as: WO2022095876A1

Abstract

The utility model discloses a body fat balance, this body fat balance includes face-piece, drain pan, backup pad and weighing sensor, and the face-piece is used for supporting the measurand, and the drain pan sets up with the face-piece interval, and the drain pan can end to support on external holding surface, and the backup pad ends to support on the drain pan and be located between face-piece and the drain pan, and weighing sensor is a plurality of, and every weighing sensor is including the first portion and the second portion that are connected, and the first portion links to each other and the first portion supports in the backup pad through the connecting piece with the drain pan, and the second portion cooperatees with the face-piece. The body fat scale has the advantages of fewer accessories, simple assembly process, higher weighing precision and suitability for various supporting planes.

Description

Body fat scale

Technical Field

The utility model relates to a weighing-appliance technical field especially relates to a body fat scale.

Background

The bottom shell and the face shell of the existing body fat scale are connected by elastic arms, the connection strength of the bottom shell and the face shell is completely dependent on peripheral tiny elastic arms, and the elastic arms are broken in a large risk when the body fat scale is transported and dropped, so that the product quality is influenced. In addition, the existing body fat scale adopts a bump sensor to realize weighing, four steel columns are required to be bonded on the bottom shell, and the elastic arms are required to be thermally pressed around the surface shell to realize connection with the bottom shell, so that the whole body fat scale has more accessories and a complex assembly process.

In addition, due to the connecting structure of the elastic arm, the existing body fat scale can accurately measure the body weight only by being placed on a flat and firm ground during measurement, and the body fat scale is easy to unload force when being used in a scene with a carpet or a soft ground, so that the weighing precision of the body fat scale is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a body fat scale, this body fat scale's accessory quantity is less, and equipment simple process, the precision of weighing is higher, and can be applicable to multiple supporting plane.

In order to realize the technical effects, the utility model discloses a body fat scale's technical scheme as follows:

the utility model discloses a body fat scale, include: the face shell is used for supporting a measured object; the bottom shell and the face shell are arranged at intervals, and the bottom shell can be abutted against an external supporting face; the supporting plate is abutted against the bottom shell and is positioned between the face shell and the bottom shell; the weighing sensor comprises a plurality of weighing sensors, each weighing sensor comprises a first part and a second part which are connected, the first part is connected with the bottom shell through a connecting piece and supported on the supporting plate, and the second part is matched with the face shell.

In some embodiments, the body fat scale further includes a clamping block, the first portion and the bottom shell are connected through the connecting member, an accommodating groove is formed in the clamping block, the first portion is fitted in the accommodating groove, and a bottom wall of the clamping block abuts against the supporting plate.

In some specific embodiments, the two opposite side walls of the accommodating groove have stoppers, and the stoppers stop against the first portion.

In some specific embodiments, a first through hole is formed in the supporting plate, a first protruding ring is arranged on the inner side of the bottom wall of the bottom shell, the first protruding ring is arranged in the first through hole in a penetrating manner, a second through hole is formed in the bottom wall of the accommodating groove, the second through hole is arranged corresponding to the first through hole, and the connecting member sequentially penetrates through the first through hole and the second through hole to be connected to the first portion.

In some more specific embodiments, a second convex ring surrounding the second through hole is arranged on the bottom wall of the fixture block, and the second convex ring is inserted into the first convex ring; and a third convex ring surrounding the second through hole is arranged on the bottom wall of the accommodating groove, and the third convex ring abuts against the first part.

In some more specific embodiments, a stopping convex ring is arranged on the inner side wall of the first convex ring, the lower end of the second convex ring abuts against the stopping convex ring, the connecting piece is a screw, and the nut of the screw abuts against the stopping convex ring.

In some specific embodiments, a matching groove surrounding the first protruding ring is formed on the outer side of the bottom wall of the bottom shell, and a shielding piece is arranged in the matching groove and used for shielding the head of the connecting piece.

In some embodiments, the panel comprises a panel and a mounting plate, the mounting plate is connected to the panel and located between the panel and the bottom case, the panel is provided with a display hole, the mounting plate is provided with a display module, the display module is matched with the display hole, the mounting plate is provided with a matching hole, the projection of the first part in the vertical direction is located in the matching hole, and a part of the projection of the second part in the vertical direction surrounds the matching hole.

In some specific embodiments, two clamping portions are arranged on the side wall of the mounting plate facing the bottom shell, the two clamping portions are respectively located on two sides of the matching hole, a clamping groove is arranged on each clamping portion, one end of each clamping groove is closed, and the other end of each clamping groove is open; wherein: the second part includes linking arm and two extension arms, the linking arm with the first portion links to each other, every the extension arm can be followed the open end in joint groove is inserted the joint inslot, every the one end of extension arm with the linking arm links to each other, and the other end ends to be in on the closed end in joint groove.

In some more specific embodiments, the side wall of the mating hole is further provided with a stopping portion, the stopping portion is located between the two clamping portions, and the stopping portion stops against the connecting arm.

The utility model discloses body fat scale because weighing sensor is including the first portion and the second portion that are connected, and the first portion passes through the connecting piece to be connected on the drain pan, and the second portion cooperatees with the face-piece, has simplified the structure of drain pan and face-piece, has reduced body fat scale's accessory number, has made things convenient for body fat scale's equipment, has promoted body fat scale's measurement accuracy for the body fat scale of this embodiment can be applicable to various outside bearing planes.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a body fat scale according to an embodiment of the present invention.

Fig. 2 is a partial structural sectional view of a body fat scale according to an embodiment of the present invention.

Fig. 3 is an enlarged schematic view of fig. 2 at circle a.

Fig. 4 is a schematic partial structure view of a body fat scale according to an embodiment of the present invention.

Fig. 5 is an enlarged schematic view of fig. 4 at circle B.

Reference numerals:

1. a face shell; 11. a panel; 111. a fat measurement patch; 12. mounting a plate; 121. a mating hole; 122. a clamping part; 1221. a clamping groove; 123. a stopping part;

2. a bottom case; 21. a first convex ring; 211. a stop convex ring; 22. a mating groove;

3. a support plate; 31. a first perforation;

4. a weighing sensor; 41. a first portion; 42. a second portion; 421. a connecting arm; 422. an extension arm;

5. a connecting member;

6. a clamping block; 61. accommodating grooves; 611. a limiting block; 612. a second perforation; 62. a second convex ring; 63. a third convex ring;

7. a shielding sheet; 8. a display module.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The specific structure of the body fat scale according to the embodiment of the present invention will be described with reference to fig. 1 to 5.

The utility model discloses a body fat balance, as shown in fig. 1-5, this body fat balance includes face-piece 1, drain pan 2, backup pad 3 and weighing sensor 4, face-piece 1 is used for supporting the measurand, drain pan 2 sets up with 1 interval of face-piece, and drain pan 2 can end to support on the outside holding surface, backup pad 3 ends to support on drain pan 2 and be located between face-piece 1 and the drain pan 2, weighing sensor 4 is a plurality of, every weighing sensor 4 is including the first part 41 and the second part 42 that are connected, first part 41 links to each other and first part 41 supports in backup pad 3 with drain pan 2 through connecting piece 5, second part 42 cooperatees with face-piece 1.

It can be understood that, in the present invention, since the load cell 4 includes the first portion 41 and the second portion 42 connected, and the first portion 41 is connected to the bottom case 2 through the connecting member 5, the second portion 42 is engaged with the face case 1. When the measured object stands on the panel case 1, the second portion 42 is deformed relative to the first portion 41. The control component of the body fat scale can calculate the weight of the measured object according to the deformation quantity. Compare current adoption elastic arm and realize the connection structure of face-piece 1 and drain pan 2, in the body fat balance of this embodiment, adopt weighing sensor 4 as the connection media of face-piece 1 and drain pan 2, not only simplified the structure of drain pan 2 and face-piece 1, can also avoid appearing undulant or the phenomenon emergence that the elastic arm splits and influence whole measurement accuracy between face-piece 1 and the drain pan 2. Compared with the existing bump sensor, the weighing sensor 4 of the embodiment comprises two parts which are connected with each other, so that four steel columns do not need to be bonded on the bottom shell 2 or the face shell 1, and the structures of the bottom shell 2 and the face shell 1 are further simplified.

In the conventional body fat scale, the inner side wall of the bottom case 2 needs to be an acting surface of the bump sensor, and the outer side wall needs to be a supporting surface contacting with an external supporting surface. In the present embodiment, however, the first portion 41 of the load cell 4 is supported on the support plate 3, and the first portion 41 is connected to the load cell 4 by the connecting member 5. When the body fat scale is used on a softer external supporting surface, even if the external supporting surface sinks, the stability of the first part 41 of the weighing sensor 4 can be better ensured due to the existence of the supporting plate 3 and the connecting piece 5, so that the measurement precision of the body fat scale of the embodiment is ensured, and the body fat scale can be suitable for various planes.

The utility model discloses body fat scale because weighing sensor 4 is including the first part 41 and the second part 42 that are connected, and first part 41 passes through connecting piece 5 and connects on drain pan 2, and second part 42 cooperatees with face-piece 1, has simplified drain pan 2 and face-piece 1's structure, has reduced body fat scale's accessory number, has made things convenient for body fat scale's equipment, has promoted body fat scale's measurement accuracy for the body fat scale of this embodiment can be applicable to various outside support planes.

In some embodiments, as shown in fig. 2-3, the body fat scale further includes a fixture block 6, the first portion 41 and the bottom shell 2 are connected by the connecting member 5, the fixture block 6 is provided with a receiving groove 61, the first portion 41 is fitted in the receiving groove 61, and the bottom wall of the fixture block 6 abuts against the supporting plate 3. It can be understood that the first portion 41 is fitted in the receiving groove 61 and then the latch 6, the first portion 41 and the bottom case 2 are coupled using the coupling member 5, which can ensure coupling stability of the first portion 41, thereby ensuring use reliability of the body fat scale. Furthermore, if the first portion 41 directly abuts against the support plate 3, there is a certain chance that the second portion 42 will contact the support plate 3 during weighing, which will affect the measurement accuracy of the body fat scale. In the embodiment, the additionally arranged fixture block 6 can ensure that the gap between the second part 42 connected with the first part 41 and the support plate 3 is reduced, and the phenomenon that the second part 42 contacts the support plate 3 is avoided, so that the measurement accuracy of the body fat scale is ensured.

In some specific embodiments, as shown in fig. 3, the two opposite sidewalls of the receiving groove 61 have a stop block 611, and the stop block 611 abuts against the first portion 41. Thereby, the stopper 611 can stop the first part 41 in the receiving groove 61, thereby further improving the mounting stability of the first part 41.

In some embodiments, as shown in fig. 3, the supporting plate 3 is provided with a first through hole 31, the inner side of the bottom wall of the bottom shell 2 is provided with a first protruding ring 21, the first protruding ring 21 is inserted into the first through hole 31, the bottom wall of the accommodating groove 61 is provided with a second through hole 612, the second through hole 612 is disposed corresponding to the first through hole 31, and the connecting member 5 sequentially passes through the first through hole 31 and the second through hole 612 to be connected to the first portion 41. It can be understood that, first bulge loop 21 wears to establish and can better restrict rocking each other between backup pad 3 and the drain pan 2 behind the first perforation 31 to avoid backup pad 3 to rock the measuring error that leads to.

In some more specific embodiments, as shown in fig. 3, the bottom wall of the latch 6 is provided with a second protruding ring 62 surrounding the second through hole 612, and the second protruding ring 62 is inserted into the first protruding ring 21; the bottom wall of the receiving groove 61 is provided with a third protruding ring 63 surrounding the second through hole 612, and the third protruding ring 63 stops against the first portion 41. It can be understood that the second protruding ring 62 is inserted into the first protruding ring 21 to ensure the connection stability of the latch 6 and the bottom case 2, and the second portion 42 is stopped against the third protruding ring 63 to ensure the stability of the first portion 41, thereby ensuring the use reliability of the body fat scale.

In some more specific embodiments, as shown in fig. 3, the inner sidewall of the first protruding ring 21 is provided with a stopping protruding ring 211, the lower end of the second protruding ring 62 abuts against the stopping protruding ring 211, the connecting member 5 is a screw, and the nut of the screw abuts against the stopping protruding ring 211. Therefore, the stop convex ring 211 can avoid the phenomenon that the screwing depth of the screw is too long, so that the screw is not easy to disassemble.

Of course, it should be noted that, in other embodiments of the present invention, the through holes may be directly formed on the fixture block 6, the supporting plate 3, the bottom shell 2 and the first portion 41, and the connection may be realized by using pins or screws, without providing the first protruding ring 21, the second protruding ring 62 and the third protruding ring 63.

In some specific embodiments, as shown in fig. 3, the bottom wall of the bottom shell 2 is provided with a fitting groove 22 surrounding the first protruding ring 21, and the fitting groove 22 is provided with a shielding piece 7, and the shielding piece 7 is used for shielding the head of the connecting member 5. Therefore, when the body fat scale is turned over, the connecting piece 5 is blocked by the blocking piece 7, and the aesthetic degree of the body fat scale is improved.

In some embodiments, the panel 1 includes a panel 11 and a mounting plate 12, the mounting plate 12 is connected to the panel 11 and is located between the panel 11 and the bottom case 2, the panel 11 is provided with a display hole, the mounting plate 12 is provided with a display module 8, the display module 8 is fitted in the display hole, the mounting plate 12 is provided with a fitting hole 121, the projection of the first portion 41 in the vertical direction is located in the fitting hole 121, and a part of the projection of the second portion 42 in the vertical direction is disposed around the fitting hole 121.

It can be understood that, when a user to be tested stands on the panel 11, the mounting plate 12 presses the first portion 41 under the action of external pressure because the projection of the first portion 41 in the vertical direction is located in the fitting hole 121, the first portion 41 and the second portion 42 are relatively displaced because the second portion 42 is connected to the mounting plate 12, and the control module of the body fat scale determines the weight of the object to be tested according to the detected relative displacement of the first portion 41 and the second portion 42, which can ensure the stability test regardless of the hardness of the external supporting surface in contact with the bottom shell 2.

In some specific embodiments, as shown in fig. 4-5, two clamping portions 122 are disposed on a side wall of the mounting plate 12 facing the bottom case 2, the two clamping portions 122 are respectively located at two sides of the matching hole 121, a clamping groove 1221 is disposed on the clamping portion 122, one end of the clamping groove 1221 is closed, and the other end is open. The second portion 42 includes a connecting arm 421 and two extending arms 422, the connecting arm 421 is connected to the first portion 41, each extending arm 422 can be inserted into the clamping groove 1221 from the open end of the clamping groove 1221, one end of each extending arm 422 is connected to the connecting arm 421, and the other end abuts against the closed end of the clamping groove 1221. It can be understood that extension arm 422 joint is in joint groove 1221, and the one end of extension arm 422 can end on joint groove 1221's closed end, has guaranteed the stability of being connected of second portion 42 and mounting panel 12 on the one hand like this, and on the other hand has avoided extension arm 422 to insert the degree of depth of joint groove 1221 too deeply for the phenomenon that whole second portion 42 deviates from in joint groove 1221 takes place.

In some more specific embodiments, as shown in fig. 5, the side wall of the matching hole 121 is further provided with a stopping portion 123, the stopping portion 123 is located between the two clamping portions 122, and the stopping portion 123 stops against the connecting arm 421. It will be appreciated that each extension arm 422 can rest against the closed end of the snap-in groove 1221. Thus, the second portion 42 is limited at one end of the catching groove 1221 in the length direction. The stopping part 123 added in the embodiment can limit the second part 42 at the other end of the clamping groove 1221 in the length direction, so that the second part 42 can be stably clamped on the mounting plate 12, and the mounting stability of the second part 42 is ensured.

Example (b):

the structure of a body fat scale according to an embodiment of the present invention will be described with reference to fig. 1 to 4. This body fat balance includes face-piece 1, drain pan 2, backup pad 3, weighing sensor 4 and fixture block 6.

The face-piece 1 is used for supporting the measured object, the face-piece 1 comprises a panel 11 and a mounting plate 12, the mounting plate 12 is connected on the panel 11 and is positioned between the panel 11 and the bottom shell 2, a display hole is formed in the panel 11, and the display module 8 is matched in the display hole and is connected with the mounting plate 12. Be equipped with mating holes 121 on the mounting panel 12, and be equipped with two joint portions 122 on the mounting panel 12 towards the lateral wall of drain pan 2, two joint portions 122 are located the both sides of mating holes 121 respectively, are equipped with joint groove 1221 on the joint portion 122, and joint groove 1221's one end is sealed, and the other end opens. The side wall of the mating hole 121 is further provided with two abutting portions 123, and the two abutting portions 123 are arranged at intervals and are located between the two clamping portions 122. The upper surface of the panel 11 is provided with a fat measurement patch 111, and the fat measurement patch 111 is used for contacting with a subject to be measured to measure the body fat percentage of the subject.

The bottom shell 2 and the face shell 1 are arranged at intervals, the bottom shell 2 can be abutted to an external supporting face, and the supporting plate 3 is abutted to the bottom shell 2 and is located between the face shell 1 and the bottom shell 2. The supporting plate 3 is provided with a first through hole 31, the inner side of the bottom wall of the bottom shell 2 is provided with a first convex ring 21, and the first convex ring 21 is arranged in the first through hole 31 in a penetrating manner.

The four weighing sensors 4 are respectively positioned at the corners of the face shell 1 and the bottom shell 2. Each load cell 4 comprises a first portion 41 and a second portion 42 connected, the first portion 41 being connected to the bottom shell 2 by means of the connection 5 and the first portion 41 being supported on the support plate 3, the second portion 42 cooperating with the front shell 1. The second portion 42 includes a connecting arm 421 and two extending arms 422, the connecting arm 421 is connected to the first portion 41, each extending arm 422 can be inserted into the clamping groove 1221 from the open end of the clamping groove 1221, one end of each extending arm 422 is connected to the connecting arm 421, and the other end abuts against the closed end of the clamping groove 1221. The connecting arm 421 can abut against the abutting portion 123.

The fixture block 6 is provided with an accommodating groove 61, a second through hole 612 is formed in the bottom wall of the accommodating groove 61, and the second through hole 612 and the first through hole 31 are correspondingly arranged. The bottom wall of the fixture block 6 is provided with a second convex ring 62 surrounding the second through hole 612, the second convex ring 62 is inserted into the first convex ring 21, the bottom wall of the accommodating groove 61 is provided with a third convex ring 63 surrounding the second through hole 612, and the third convex ring 63 is stopped against the first part 41. The connecting member 5 is connected to the first portion 41 through the first through hole 31 and the second through hole 612 in sequence. The second convex ring 62 and the first convex ring 21 are sleeved on the connecting piece 5. The bottom wall of the bottom shell 2 is provided with a matching groove 22 surrounding the first convex ring 21 on the outer side, a shielding piece 7 is arranged in the matching groove 22, and the shielding piece 7 is used for shielding the head of the connecting piece 5.

The utility model discloses a body fat scale has following advantage:

firstly, a supporting plate 3 with strong structural strength (such as glass, a steel plate, a galvanized plate and the like) is adopted to fix a weighing sensor 4, the change of a bearing line is small, and the measurement precision is higher;

secondly, the reliability of locking the weighing sensor 4 by the connecting piece 5 is higher, so that the measurement error caused by instability of the weighing sensor 4 is avoided;

thirdly, the number of accessories is small, and the product assembly process is simple;

fourthly, the supporting device can be applied to various types of external supporting surfaces, and the application range is wide.

In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A body fat scale, comprising:

the face shell (1), the said face shell (1) is used for supporting the measured object;

the bottom shell (2) and the face shell (1) are arranged at intervals, and the bottom shell (2) can be stopped against an external supporting surface;

the supporting plate (3) is stopped against the bottom shell (2) and is positioned between the face shell (1) and the bottom shell (2);

weighing sensor (4), weighing sensor (4) are a plurality of, every weighing sensor (4) are including first portion (41) and second portion (42) that are connected, first portion (41) pass through connecting piece (5) with drain pan (2) link to each other just first portion (41) support on backup pad (3), second portion (42) with face-piece (1) cooperatees.

2. The body fat scale of claim 1, further comprising a fixture block (6), wherein the fixture block (6), the first portion (41) and the bottom shell (2) are connected through the connecting member (5), the fixture block (6) is provided with a receiving groove (61), the first portion (41) is fitted in the receiving groove (61), and a bottom wall of the fixture block (6) abuts against the supporting plate (3).

3. The body fat scale of claim 2, wherein the receiving groove (61) has a stopper (611) on two opposite sidewalls, the stopper (611) stopping against the first portion (41).

4. The body fat scale according to claim 2, wherein the supporting plate (3) is provided with a first through hole (31), the inner side of the bottom wall of the bottom shell (2) is provided with a first protruding ring (21), the first protruding ring (21) is arranged in the first through hole (31) in a penetrating manner, the bottom wall of the accommodating groove (61) is provided with a second through hole (612), the second through hole (612) is arranged corresponding to the first through hole (31), and the connecting member (5) sequentially penetrates through the first through hole (31) and the second through hole (612) and is connected to the first portion (41).

5. The body fat scale according to claim 4, wherein the bottom wall of the fixture block (6) is provided with a second convex ring (62) surrounding the second through hole (612), and the second convex ring (62) is inserted into the first convex ring (21);

a third convex ring (63) arranged around the second through hole (612) is arranged on the bottom wall of the accommodating groove (61), and the third convex ring (63) is stopped against the first part (41).

6. The body fat scale according to claim 5, wherein the inner sidewall of the first protruding ring (21) is provided with a stopping protruding ring (211), the lower end of the second protruding ring (62) abuts against the stopping protruding ring (211), the connecting member (5) is a screw, and the nut of the screw abuts against the stopping protruding ring (211).

7. The body fat scale according to claim 4, wherein the bottom wall of the bottom shell (2) is provided with a matching groove (22) surrounding the first protruding ring (21) on the outer side, a shielding piece (7) is arranged in the matching groove (22), and the shielding piece (7) is used for shielding the head of the connecting piece (5).

8. The body fat scale of claim 1, wherein the face shell (1) comprises a panel (11) and a mounting plate (12), the mounting plate (12) is connected to the panel (11) and located between the panel (11) and the bottom shell (2), a display hole is formed in the panel (11), a display module (8) is arranged on the mounting plate (12), the display module (8) is matched in the display hole, a matching hole (121) is formed in the mounting plate (12), the projection of the first portion (41) in the vertical direction is located in the matching hole (121), and a part of the projection of the second portion (42) in the vertical direction is arranged around the matching hole (121).

9. The body fat scale according to claim 8, wherein the side wall of the mounting plate (12) facing the bottom shell (2) is provided with two clamping portions (122), the two clamping portions (122) are respectively located at two sides of the matching hole (121), the clamping portions (122) are provided with clamping grooves (1221), one ends of the clamping grooves (1221) are closed, and the other ends of the clamping grooves (1221) are open; wherein:

the second part (42) includes linking arm (421) and two extension arms (422), linking arm (421) with first part (41) link to each other, every extension arm (422) can be followed the open end of joint groove (1221) is inserted in joint groove (1221), every the one end of extension arm (422) with linking arm (421) link to each other, and the other end ends to be in on the closed end of joint groove (1221).

10. The body fat scale of claim 9, wherein a stop portion (123) is further disposed on a side wall of the fitting hole (121), the stop portion (123) is located between the two clamping portions (122), and the stop portion (123) stops against the connecting arm (421).