A human scale with adjustable scale

Abstract

The present invention relates to a human scale with an adjustable scale, comprising: a chassis assembly, the chassis assembly comprising a platform, a base and an active cavity, the base being arranged at the bottom of the platform, and the active cavity being opened on the inner side of the base; a lever assembly, the lever assembly comprising a weighing platform, an elastic pad, a pull rope, a column, a channel and a transmission mechanism, the weighing platform being arranged above the platform, and a plurality of elastic pads being evenly arranged at the bottom of the weighing platform, and the elastic pads extending into the active cavity from top to bottom. Through a purely mechanical structure, the human scale can function more stably, the measurement result error is smaller, it is easier to maintain, the service life is longer, and the problems of instability and large error of the weight sensor can be avoided well.

Description

Technical Field

[0001] The invention belongs to the field of human body scales, in particular to a human body scale with an adjustable scale. Background Art

[0002] A body scale is a non-automatic weighing instrument for measuring human body weight. The principle is to use a spring (or other elastic deformation element) to produce a displacement change when an external force is applied. Within a certain range, the displacement change is proportional to the external force, and the mass value of the human body is indicated by a pointer and a dial.

[0003] The scales of existing related equipment cannot be flipped to change the direction of the front and back sides, so that only values ​​and scales can be displayed on one side, resulting in a waste of resources. Placing multiple scales and measurement units on the same side will cause overcrowding and difficulty in distinguishing clearly, which may lead to misreading. Therefore, a human body scale with an adjustable scale is proposed. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the following technical problems in the prior art: the scale of the existing related equipment cannot change its front and back directions by flipping, so that it can only display values ​​and scales on one side, resulting in a waste of resources; placing multiple scales and measurement units on the same side will cause overcrowding and difficulty in distinguishing clearly, which may lead to misreading problems.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a human body scale with an adjustable scale, comprising:

[0007] A chassis assembly, the chassis assembly comprising a fixed base, a base and an activity cavity, the base is arranged at the bottom of the fixed base, and the activity cavity is opened on the inner side of the base;

[0008] A lever assembly, the lever assembly comprising a weighing platform, a transmission column, a pull rope, a column, a channel and a transmission mechanism, the weighing platform is arranged above the fixed base, a plurality of transmission columns are evenly arranged at the bottom end of the weighing platform, the transmission columns extend into the movable cavity from top to bottom, the transmission columns are movably connected to the fixed base, the bottom end of the transmission column is movably connected to the transmission mechanism, one end of the transmission mechanism is connected to the pull rope, a column is arranged at one end of the top of the fixed base, a channel is opened on the inner side of the column, the bottom end of the channel is connected to the movable cavity, and the pull rope passes through the channel;

[0009] A ruler assembly, the ruler assembly includes a ruler frame, an articulated frame, a ruler one, a rotating shaft three, a hook and a limit plate, the top of the pull rope is connected to the ruler frame through the hook, the articulated frame is located at the top of the column, the ruler frame is rotatably connected to the inner side of the articulated frame through the rotating shaft three, the top of the ruler frame is rotatably connected with the ruler one, the top of the column is provided with a limit plate, the top of the limit plate is provided with a through slot, and one end of the ruler frame extends into the through slot.

[0010] As a preferred technical solution for a human scale with an adjustable scale, the transmission mechanism includes a second lever arm, a second sliding groove, a second rotating shaft and a swing assembly, the bottom end of the swing assembly is rotatably connected to one end of the second lever arm, the other end of the second lever arm is connected to the pull rope through a connecting frame, the second lever arm is provided with a second sliding groove, the inner side of the movable cavity is provided with a second rotating shaft, and the middle part of the second rotating shaft is movably connected to the inner side of the second sliding groove;

[0011] When a person stands on the weighing platform, his weight squeezes the swing assembly through the weighing platform and the transmission column. The swing assembly transmits the pressure to one end of the lever arm 2, causing one end of the lever arm 2 to rise, while the other end of the lever arm 2 drops and pulls the rope, and the tension of the rope is transmitted to the scale assembly.

[0012] As a preferred technical solution for a human scale with an adjustable scale, the swing assembly includes a lever arm, a rotating shaft, a sliding groove, a support rod and a vertical rod. Two rotating shafts are respectively arranged at the front and rear of the inner wall of the activity cavity. A lever arm is rotatably connected to each rotating shaft. A sliding groove is provided at one end of each lever arm away from the rotating shaft. Two lever arms are respectively connected to the two ends of the support rod. The two lever arms at the same end of the support rod cross each other. A vertical rod is arranged in the middle of the support rod. The transmission column corresponds to the lever arms one by one.

[0013] When a person stands on the weighing platform, his weight squeezes one end of lever arm one through the weighing platform and the transmission column, causing the other end of lever arm one to lift up. The lifted end of lever arm one can pull the vertical rod upward through the support rod, and the vertical rod transmits the pulling force to lever arm two, causing one end of lever arm two to swing upward.

[0014] As a preferred technical solution of a human scale with an adjustable scale, the lever assembly further comprises a spacer, a spacer is arranged on the top of the lever arm 1, the spacer corresponds to the transmission column one by one, and the spacer is movably connected to the corresponding transmission column;

[0015] The spacer is made of rubber, which can reduce the impact between the lever arm 1 and the transmission column and extend the service life of the lever arm 1 and the transmission column.

[0016] As a preferred technical solution of a human scale with an adjustable scale, the lever assembly further comprises a stopper, two stoppers are arranged at the top of the lever arm 2 away from one end of the vertical rod, and elastic pads are arranged at the tops of the stoppers, and the elastic pads are movably connected to the inner top wall of the movable cavity;

[0017] The connecting frame includes a connecting plate, a pull rod and a jack hook, one end of the lever arm 2 away from the vertical rod is rotatably connected to the connecting plate, a pull rod is provided at the top of the connecting plate, a jack hook is provided at the bottom of the pull rope, and the jack hook is sleeved with the pull rod;

[0018] The pull rope pulls the connecting plate and the pull rod on the lever arm 2 through the jack hook, so that the lever arm 2 tends to be horizontal.

[0019] As a preferred technical solution of a human scale with an adjustable scale, the scale assembly further includes a second scale, the bottom of the scale frame is rotatably connected to the second scale, and the first scale and the second scale are both arranged horizontally;

[0020] There are scale lines on both sides of Scale 1 and Scale 2, but the measurement units on the two sides are also different, lb and kg respectively. The scale display can be swapped by flipping Scale 2 and Scale 1.

[0021] The beneficial effects of the human body scale with adjustable scale of the present invention are as follows: through the purely mechanical structure, the human body scale can function more stably, the measurement result error is smaller, it is easier to maintain, the service life is longer, and the problems of instability and large error of the weight sensor can be avoided well;

[0022] Scale lines are set on both sides of scale one and scale two, but the measurement units on the two sides are also different, lb and kg respectively. The scale display can be swapped by flipping scale two and scale one, which is convenient for direct and intuitive reading without calculation and conversion. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0024] Figure 1 It is a schematic diagram of the cross-sectional structure of the front side of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the scale assembly of the present invention;

[0026] Figure 3 For the present invention Figure 1A schematic diagram of the partially enlarged structure of part A;

[0027] Figure 4 For the present invention Figure 1 A schematic diagram of the partially enlarged structure of part B;

[0028] Figure 5 It is a schematic structural diagram of the positional relationship among the lever arm 1, the support rod and the vertical rod of the present invention.

[0029] Figure numerals: chassis assembly - 100, fixed base - 101, base - 102, movable cavity - 103, lever assembly - 200, lever arm one - 201, rotating shaft one - 202, sliding groove one - 203, support rod - 204, vertical rod - 205, lever arm two - 206, block - 207, pull rope - 208, column - 209, channel - 210, spacer - 211, weighing platform - 212, sliding groove two - 213, rotating shaft two - 214, transmission column - 215, connecting plate - 216, limit block - 217, pull rod - 218, jack hook - 219, ruler assembly - 300, ruler frame - 301, articulated frame - 302, ruler one - 303, ruler two - 304, rotating shaft three - 305, pull hook - 306, limit plate - 307. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0034] like Figure 1-5As shown, the present invention provides a human body scale with an adjustable scale, comprising:

[0035] A chassis assembly 100, the chassis assembly 100 comprises a fixed base 101, a base 102 and an active cavity 103, the base 102 is arranged at the bottom of the fixed base 101, and the active cavity 103 is opened inside the base 102;

[0036] The lever assembly 200 includes a weighing platform 212, a transmission column 215, a pull rope 208, a column 209, a channel 210 and a transmission mechanism. The weighing platform 212 is installed above the fixed base 101, and a plurality of transmission columns 215 are evenly installed at the bottom of the weighing platform 212. The transmission columns 215 extend into the movable cavity 103 from top to bottom. The transmission columns 215 are movably connected to the fixed base 101, and the bottom end of the transmission column 215 is movably connected to the transmission mechanism. One end of the transmission mechanism is connected to the pull rope 208. A column 209 is installed at one end of the top of the fixed base 101. A channel 210 is opened on the inner side of the column 209. The bottom end of the channel 210 is connected to the movable cavity 103, and the pull rope 208 passes through the channel 210.

[0037] The ruler assembly 300 includes a ruler frame 301, an articulated frame 302, a ruler 1 303, a rotating shaft 305, a hook 306 and a limit plate 307. The top of the pull rope 208 is connected to the ruler frame 301 through the hook 306. The articulated frame 302 is located at the top of the column 209. The ruler frame 301 is rotatably connected to the inner side of the articulated frame 302 through the rotating shaft 305. The top of the ruler frame 301 is rotatably connected to the ruler 1 303. A limit plate 307 is provided at the top of the column 209. A through slot is opened on the top of the limit plate 307, and one end of the ruler frame 301 extends into the through slot.

[0038] The transmission mechanism includes a lever arm 206, a sliding groove 213, a rotating shaft 214 and a swing assembly. The bottom end of the swing assembly is rotatably connected to one end of the lever arm 206. The other end of the lever arm 206 is connected to the pull rope 208 through a connecting frame. The lever arm 206 is provided with a sliding groove 213. The inner side of the movable cavity 103 is provided with a rotating shaft 214. The middle part of the rotating shaft 214 is movably connected to the inner side of the sliding groove 213.

[0039] A person stands on the weighing platform 212, and the person's weight squeezes the swing assembly through the weighing platform 212 and the transmission column 215. The swing assembly transmits the pressure to one end of the lever arm 206, so that one end of the lever arm 206 is lifted, and the other end of the lever arm 206 drops and pulls the pull rope 208. The tension of the pull rope 208 is transmitted to the scale assembly 300.

[0040] The swing assembly includes a lever arm 201, a rotating shaft 202, a sliding groove 203, a support rod 204 and a vertical rod 205. Two rotating shafts 202 are respectively arranged at the front and rear of the inner wall of the activity chamber 103. Each of the rotating shafts 202 is rotatably connected to a lever arm 201. A sliding groove 203 is provided at one end of each lever arm 201 away from the rotating shaft 202. Two lever arms 201 are respectively connected to the two ends of the support rod 204. The two lever arms 201 at the same end of the support rod 204 cross each other. A vertical rod 205 is arranged in the middle of the support rod 204. The transmission column 215 corresponds to the lever arms 201 one by one.

[0041] A person stands on the weighing platform 212, and the person's weight squeezes one end of the lever arm 1 201 through the weighing platform 212 and the transmission column 215, so that the other end of the lever arm 1 201 is lifted up, and the lifted end of the lever arm 1 201 can pull the vertical rod 205 upward through the support rod 204, and the vertical rod 205 transmits the pulling force to the lever arm 2 206, so that one end of the lever arm 206 swings up.

[0042] The lever assembly 200 further includes a spacer 211. The spacer 211 is installed on the top of the lever arm 201. The spacer 211 corresponds to the transmission column 215 one by one. The spacer 211 is movably connected to the corresponding transmission column 215.

[0043] The spacer 211 is made of rubber, which can reduce the impact between the lever arm 201 and the transmission column 215 and extend the service life of the lever arm 201 and the transmission column 215.

[0044] The lever assembly 200 further includes a stopper 207. Two stoppers 207 are disposed at the top of the lever arm 206 away from one end of the vertical rod 205. The tops of the stoppers 207 are both provided with elastic pads, which are movably connected to the inner top wall of the movable cavity 103.

[0045] The connecting frame includes a connecting plate 216, a pull rod 218 and a jack hook 219. The end of the lever arm 206 away from the vertical rod 205 is rotatably connected to the connecting plate 216. The top of the connecting plate 216 is provided with a pull rod 218. The bottom of the pull rope 208 is provided with a jack hook 219. The jack hook 219 is sleeved with the pull rod 218.

[0046] The pull rope 208 pulls the connecting plate 216 and the pull rod 218 on the lever arm 206 through the jack hook 219, so that the lever arm 206 tends to be horizontal.

[0047] The scale assembly 300 further includes a second scale 304, the bottom of the scale frame 301 is rotatably connected to the second scale 304, and the first scale 303 and the second scale 304 are both horizontally arranged;

[0048] Both sides of the ruler 1 303 and the ruler 2 304 are provided with scale lines, but the measurement units of the two sides are also different, namely pounds and catties. The scale display can be switched by flipping the ruler 2 304 and the ruler 1 303.

[0049] The outer sides of the first scale 303 and the second scale 304 are both slidably connected with weights.

[0050] Two limit blocks 217 are also provided in the movable cavity 103, and the vertical rod 205 is located between the two limit blocks 217. The limit blocks 217 constrain the vertical rod 205 so that the vertical rod 205 can only move up and down in the vertical direction, thereby making the force arms at both ends of the lever arm 1 201 and the lever arm 2 206 remain unchanged, so that the respective proportions of the two force-saving levers formed by the lever arm 1 201 and the lever arm 2 206 remain unchanged.

[0051] The specific implementation method is as follows: a person stands on the weighing platform 212, and the person's weight squeezes one end of the lever arm 1 201 through the weighing platform 212 and the transmission column 215, so that the other end of the lever arm 1 201 is lifted up, and the lifted end of the lever arm 1 201 can pull the vertical rod 205 upward through the support rod 204, and the vertical rod 205 transmits the pulling force to the lever arm 2 206, so that one end of the lever arm 206 swings up, and the other end of the lever arm 206 descends and pulls the pull rope 208, and the pulling force of the pull rope 208 is transmitted to the ruler assembly 300, so that one end of the ruler frame 301 swings down, and the ruler frame 301 can be made horizontal by adjusting the position of the weights on the ruler 1 303 and the ruler 2 304. When the ruler frame 301 is horizontal, the values ​​on the ruler 1 303 and the ruler 2 304 can jointly represent the person's weight.

[0052] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A human scale with an adjustable scale, characterized in that: include: A chassis assembly (100), the chassis assembly (100) comprising a fixed base (101), a base (102) and an active cavity (103), the base (102) being arranged at the bottom of the fixed base (101), and the active cavity (103) being arranged on the inner side of the base (102); A lever assembly (200), the lever assembly (200) comprising a weighing platform (212), a transmission column (215), a pull rope (208), a column (209), a channel (210) and a transmission mechanism, the weighing platform (212) being arranged above the fixed base (101), a plurality of transmission columns (215) being evenly arranged at the bottom of the weighing platform (212), the transmission columns (215) extending from top to bottom into the movable cavity (103), and the transmission columns (215) being movably connected to the fixed base (101); The bottom end of the transmission column (215) is movably connected to the transmission mechanism, one end of the transmission mechanism is connected to the pull rope (208), a column (209) is installed at one end of the top of the fixed base (101), a channel (210) is opened on the inner side of the column (209), the bottom end of the channel (210) is connected to the movable chamber (103), and the pull rope (208) passes through the channel (210); A ruler assembly (300), the ruler assembly (300) comprising a ruler frame (301), an articulated frame (302), a ruler one (303), a rotating shaft three (305), a hook (306) and a limit plate (307), the top end of the pull rope (208) is connected to the ruler frame (301) via the hook (306), the articulated frame (302) is located at the top end of a column (209), the ruler frame (301) is rotatably connected to the inner side of the articulated frame (302) via the rotating shaft three (305), and the top of the ruler frame (301) is rotatably connected to the ruler one (303).

2. A human scale with an adjustable scale according to claim 1, characterized in that: The transmission mechanism comprises a second lever arm (206), a second sliding groove (213), a second rotating shaft (214) and a swinging assembly. The bottom end of the swinging assembly is rotatably connected to one end of the second lever arm (206). The other end of the second lever arm (206) is connected to the pull rope (208) via a connecting frame. The second lever arm (206) is provided with a second sliding groove (213). The second rotating shaft (214) is arranged inside the movable cavity (103). The middle part of the second rotating shaft (214) is movably connected to the inner side of the second sliding groove (213).

3. A human scale with an adjustable scale according to claim 2, characterized in that: The swing assembly comprises a lever arm (201), a rotating shaft (202), a sliding groove (203), a support rod (204) and a vertical rod (205). Two rotating shafts (202) are respectively arranged at the front and rear of the inner wall of the movable cavity (103). Each of the rotating shafts (202) is rotatably connected to a lever arm (201). A sliding groove (203) is provided at one end of each lever arm (201) away from the rotating shaft (202). Two lever arms (201) are respectively connected to the two ends of the support rod (204). The two lever arms (201) at the same end of the support rod (204) cross each other. A vertical rod (205) is arranged in the middle of the support rod (204). The transmission column (215) corresponds to the lever arms (201) one by one.

4. The human body weighing scale with adjustable scale according to claim 3, characterized in that: The lever assembly (200) further comprises a spacer (211), the top of the lever arm (201) is provided with the spacer (211), the spacer (211) corresponds to the transmission column (215) one by one, and the spacer (211) is movably connected to the corresponding transmission column (215).

5. A human scale with an adjustable scale according to claim 4, characterized in that: The lever assembly (200) further comprises a stopper (207), and two stoppers (207) are arranged at the top of the lever arm 2 (206) away from one end of the vertical rod (205), and elastic pads are arranged at the top ends of the stoppers (207), and the elastic pads are movably connected to the inner top wall of the movable cavity (103).

6. The human body weighing scale with adjustable scale according to claim 5, characterized in that: The connecting frame includes a connecting plate (216), a pull rod (218) and a jack hook (219); one end of the lever arm 2 (206) away from the vertical rod (205) is rotatably connected to the connecting plate (216); a pull rod (218) is provided at the top end of the connecting plate (216); a jack hook (219) is provided at the bottom end of the pull rope (208); and the jack hook (219) is sleeved with the pull rod (218).

7. The human body weighing scale with adjustable scale according to claim 6, characterized in that: The ruler assembly (300) further comprises a second ruler (304), and the bottom of the ruler frame (301) is rotatably connected to the second ruler (304).

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