Height and weight scale

Abstract

The invention discloses a height and weight scale, which relates to the technical field of weight scales and comprises a scale body, bases are arranged at four corners of the bottom of the scale body, multiple groups of rotating balls are telescopically arranged in the bases, and the rotating balls are in transmission connection with a limiting mechanism. The rotating ball can rotate to move the scale body when only bearing the weight of the scale body; and when bearing the weight of the scale body and the personnel, the moving mechanism abuts against the limiting mechanism to limit rotation so as to fix the scale body, thereby realizing automatic switching between moving and fixing. A folding groove is formed in the base, and the limiting mechanism comprises a sliding rail, a sliding block, a limiting spring, a rotating sleeve, a clamping sleeve, an auxiliary ball and the like. The surface of the scale body is provided with a camera and a display screen which are respectively used for measuring height and displaying weight and height information. The height and weight scale can automatically switch a moving state and a fixed state, solves the problem that an existing flat scale is inconvenient to move, and has both convenience and stability.

Description

Technical Field

[0001] The present invention relates to weight scale technology, in particular to a height and weight scale. Background Art

[0002] As is known to all, daily use of weighing scales is mainly to record and monitor changes in human body weight. They are divided into electronic and mechanical types. Weighing scales are practical and convenient, and have a wide range of applications. Currently installed weighing scales are generally flat-plate type placed on the ground. A person stands on top of the scale, and the person's weight is weighed by the sensor inside the scale. The person's height is measured in conjunction with a panoramic camera installed in the scale and displayed on the monitor.

[0003] The disadvantage of the existing technology is that, in order to fix the scale when it is placed, the current flat-plate height and weight scale generally has a rubber pad or suction cup at the bottom of the scale to increase the friction between the scale and the ground. This also leads to a large friction between the bottom of the scale and the ground. When the scale is not in use, people generally place the scale in a corner without affecting their daily life. When it is needed, the scale is pulled out from the corner or moved out for weighing. The friction between the friction mechanism at the bottom of the scale and the ground is large, and the scale cannot be directly slid out from the corner smoothly. Generally, people need to bend down to lift the scale and place it in the position where it is needed to weigh. After weighing, they need to bend down and move the scale back to the corner. It is not convenient for the smooth movement of the scale on the ground, and it is inconvenient to use. Summary of the Invention

[0004] The object of the present invention is to provide a height and weight scale to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solution: comprising a scale body, wherein bases are provided at the four corners of the bottom of the scale body, and further comprising:

[0006] Multiple sets of rotating balls, which are retractably arranged in the base and protrude outward from the bottom of the base to contact the ground to provide load-bearing to the scale body while rotating and displacing;

[0007] A limiting mechanism is connected to the rotating ball through a transmission mechanism. When the rotating ball only bears the weight of the scale body, the scale body is moved by the rotation of the rotating ball. When the rotating ball bears the weight of the scale body and the weighing person, the rotating ball passively conflicts with the limiting mechanism, restricting the rotation of the rotating ball and fixing the scale body. The movement and fixation of the scale body are automatically switched according to the usage.

[0008] As a further description of the above technical solution: the folding groove in the base has an open end at one end close to the ground and a closed end at the other end of the folding groove.

[0009] As a further description of the above technical solution: the limiting mechanism includes slide rails opened on both sides of the open end of the folding groove, and a slider is slidably connected to the slide rail through a limit spring. The slider is fixedly installed on both sides of the open end of the rotating sleeve, and a rotating ball is rotatably installed in the rotating sleeve.

[0010] As a further description of the above technical solution: the limiting mechanism also includes a jacket that is slidably inserted into the closed end of the rotating sleeve, and the inner side wall of the jacket is provided with multiple groups of rotating grooves, and auxiliary balls are rotatably connected in the rotating grooves.

[0011] As a further description of the above technical solution: the outer side of the closed end of the sleeve is fixedly connected to one end of the resistance rod, the other end of the resistance rod slides through the outside of the closed end of the rotating sleeve and resists the inner wall of the closed end of the folding groove, and the outer side of the sleeve is connected to the inner wall of the rotating sleeve through a buffer spring.

[0012] As a further description of the above technical solution: the opening of the rotating sleeve is inclined, and the size of the rotating sleeve opening end is smaller than the size of the edge of the internal cavity connecting the opening end, and the size of the rotating sleeve opening end is smaller than the diameter of the rotating ball, so that the rotating ball can only rotate in the rotating sleeve and cannot fall off from the rotating sleeve.

[0013] As a further description of the above technical solution: the opening of the rotating groove is inclined, and the size of the opening end of the rotating groove is smaller than the size of the edge of the opening end connecting the internal cavity, and the size of the opening end of the rotating groove is smaller than the diameter of the auxiliary ball, so that the auxiliary ball can only rotate in the rotating groove and cannot fall off from the rotating groove.

[0014] As a further description of the above technical solution: the surfaces of the rotating ball and the auxiliary ball are both smooth, and the inner side wall of the rotating groove is frosted to provide damping for the rotation of the auxiliary ball.

[0015] As a further description of the above technical solution: when the rotating ball is squeezed to the extreme position, the resistance rod inserted into the closed end of the rotating sleeve contacts the inner wall of the closed end of the folding groove, and the tip of the rotating ball is flush with the end face of the base away from the scale body, and will not be completely retracted into the folding groove, so that the rotating ball and the base cooperate to provide load-bearing for the scale body.

[0016] As a further description of the above technical solution: the surface of the scale body is provided with a camera for measuring a person's height, and a display screen for displaying weight and height information.

[0017] In the above technical solution, the height and weight scale provided by the present invention has the following beneficial effects:

[0018] 1. Automatic switching between mobile and fixed states: Through the linkage of the rotating ball and the limit mechanism, the rotating ball can rotate to achieve smooth movement when unloaded (only bearing the weight of the scale body), and automatically lock the rotating ball when loaded (bearing the weight of the person) to avoid shaking during weighing, without manual operation.

[0019] 2. Convenience of movement: The surface of the rotating ball is smooth, and the rotation resistance is small when unloaded. It can be moved by kicking or pushing lightly, solving the inconvenience of traditional scales that need to be carried.

[0020] 3. Positioning stability: When loaded, the auxiliary ball and the frosted surface of the rotating groove generate damping, and cooperate with the spring structure to form a rigid resistance to prevent the scale body from sliding due to external force or ground slope, ensuring accurate weighing.

[0021] 4. Double load-bearing design: The rotating ball and the bottom surface of the base work together to bear the weight. At the extreme position, the tip of the rotating ball is flush with the end surface of the base, which improves the structural strength and stability.

[0022] 4. Intelligent operation: integrated camera and display screen, synchronously complete height measurement and data display, and integrated functions.

[0023] 6. Damping controllability: The slight resistance of the auxiliary ball provides moderate resistance when moving, preventing it from sliding too far and facilitating precise positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0026] Figure 2 A schematic structural diagram of a base provided in an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the structure of the position of the rotating ball in the base after the scale body is lifted according to an embodiment of the present invention;

[0028] Figure 4 A structural diagram of the position of the rotating ball in the base when the scale body is placed on the ground and moved according to an embodiment of the present invention;

[0029] Figure 5 A schematic structural diagram of the position of the rotating ball in the base during weighing provided by an embodiment of the present invention;

[0030] Figure 6 A schematic structural diagram of a rotating sleeve provided in an embodiment of the present invention;

[0031] Figure 7 This is a schematic structural diagram of a jacket provided in an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1- scale body; 2- display screen; 3- camera; 4- base; 5- rotating ball; 6- folding groove; 7- slide rail; 8- limit spring; 9- slider; 10- contact rod; 11- rotating sleeve; 12- clamping sleeve; 13- buffer spring; 14- auxiliary ball; 15- rotating groove. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] See also Figure 1-Figure 7 The embodiment of the present invention provides a technical solution for a height and weight scale, comprising a scale body 1, with bases 4 provided at the four corners of the bottom of the scale body 1, and further comprising:

[0036] Multiple sets of rotating balls 5 are retractably arranged in the base 4 and protrude outward from the bottom of the base 4 to contact the ground to provide load-bearing to the scale body 1 while rotating and displacing;

[0037] The limiting mechanism is connected to the rotating ball 5 through a transmission mechanism. When the rotating ball 5 only bears the weight of the scale body 1, the scale body 1 is moved by the rotation of the rotating ball 5. When the rotating ball 5 bears the weight of the scale body 1 and the weighing person, the rotating ball 5 passively conflicts with the limiting mechanism, restricting the rotation of the rotating ball 5 and fixing the scale body 1. The movement and fixation of the scale body 1 are automatically switched according to the usage.

[0038] In another embodiment provided by the present invention, preferably, the folding groove 6 in the base 4 has an open end at one end of the folding groove 6 close to the ground and a closed end at the other end of the folding groove 6 .

[0039] In another embodiment provided by the present invention, the limiting mechanism includes a slide rail 7 provided on both sides of the open end of the folding groove 6, and a slider 9 is slidably connected to the slide rail 7 through a limiting spring 8. The slider 9 is fixedly installed on both sides of the open end of the rotating sleeve 11, and a rotating ball 5 is rotatably installed in the rotating sleeve 11.

[0040] In another embodiment provided by the present invention, the limiting mechanism further comprises a jacket 12 slidably inserted into the closed end of the rotating sleeve 11 , wherein the inner wall of the jacket 12 is provided with multiple groups of rotating grooves 15 , and auxiliary balls 14 are rotatably connected in the rotating grooves 15 .

[0041] In another embodiment provided by the present invention, the outer side of the closed end of the jacket 12 is fixedly connected to one end of the resistance rod 10, and the other end of the resistance rod 10 slides through the outside of the closed end of the rotating sleeve 11 and resists the inner wall of the closed end of the folding groove 6, and the outer side of the jacket 12 is connected to the inner wall of the rotating sleeve 11 through the buffer spring 13.

[0042] In another embodiment provided by the present invention, the opening of the rotating sleeve 11 is inclined, and the size of the opening end of the rotating sleeve 11 is smaller than the size of the edge of the internal cavity connecting the opening end, and the size of the opening end of the rotating sleeve 11 is smaller than the diameter of the rotating ball 5, so that the rotating ball 5 can only rotate in the rotating sleeve 11 and cannot fall off from the rotating sleeve 11.

[0043] In another embodiment provided by the present invention, the opening of the rotating groove 15 is inclined, and the size of the opening end of the rotating groove 15 is smaller than the size of the edge of the internal cavity connecting the opening end, and the size of the opening end of the rotating groove 15 is smaller than the diameter of the auxiliary ball 14, so that the auxiliary ball 14 can only rotate in the rotating groove 15 and cannot fall off from the rotating groove 15.

[0044] In another embodiment of the present invention, the surfaces of the rotating ball 5 and the auxiliary ball 14 are both smooth, and the inner wall of the rotating groove 15 is frosted to provide damping for the rotation of the auxiliary ball 14 .

[0045] In another embodiment provided by the present invention, when the rotating ball 5 is squeezed to the extreme position, the resistance rod 10 inserted into the closed end of the rotating sleeve 11 contacts the inner wall of the closed end of the folding groove 6, and the tip part of the rotating ball 5 is flush with the end face of the base 4 away from the scale body 1, and will not be completely retracted into the folding groove 6, so that the rotating ball 5 and the base 4 cooperate to provide load-bearing for the scale body 1.

[0046] In another embodiment provided by the present invention, preferably, a camera 3 for measuring a person's height and a display screen 2 for displaying weight and height information are provided on the surface of the scale body 1 .

[0047] The scale is placed at a corner of the ground on a daily basis. When the scale is needed to measure weight and height, the scale is slid outward from the corner to the desired location. The person can directly stand on the scale to weigh the weight. At the same time, the height of the person is measured by the camera 3 provided on the surface of the scale body 1, and the weight and height data are displayed on the display screen 2 provided on the surface of the scale body 1;

[0048] When sliding the scale body 1 outward from the corner of the wall, the person can directly use the foot to kick the scale body 1 outward from the edge of the scale body 1. During the process of kicking the scale body 1 outward, the four rotating balls 5 set at the four corners of the bottom of the scale body 1 will rotate in the base 4, thereby preventing the scale body 1 from sliding on the ground;

[0049] When the scale body 1 is slid, the four rotating balls 5 only need to bear the weight of the scale body 1 itself when contacting the ground. At this time, the rotating balls 5 contact and squeeze the auxiliary balls 14 in the jacket 12. At this time, the resistance between the auxiliary balls 14 and the inner wall of the rotating groove 15 is small, and the jacket 12 is squeezed. The outside of the jacket 12 squeezes the buffer spring 13 and transmits the gravity to the rotating sleeve 11, so that the rotating sleeve 11 is restricted by the sliders 9 at both ends and squeezes the limit spring 8 in the slide rail 7. At this time, the gravity of the scale body 1 itself is restrained by the limit spring 8 and the buffer spring 13. The support retracts the rotating ball 5 into the base 4 by a small amplitude, and at this time the slider 9 squeezes the limit spring 8 in the middle position of the slide rail 7. At this time, since the contact force between the rotating ball 5 and the auxiliary ball 14 is small, the rotating ball 5 can be easily rotated when the person kicks the scale body 1, thereby driving the movement of the scale body 1. However, due to the interference between the auxiliary ball 14 and the rotating ball 5, the rotation of the rotating ball 5 is also blocked to a certain extent, and the scale body 1 will not slide outward a long distance when the scale body 1 is kicked, so that the scale body 1 can move with the movement of the person's feet.

[0050] After the scale body 1 is placed at the desired location, a person can measure their weight and height by simply standing on the scale body 1. Due to the contact between the auxiliary ball 14 and the rotating ball 5, the scale body 1 will not slide along with the slope of the ground, and the scale body 1 will not be displaced by even the slightest force of a person touching it.

[0051] After a person stands on the scale body 1, the weight of the person's body needs to be weighed by the scale body 1 itself, and the rotating ball 5 at the bottom of the scale body 1 that contacts the ground will be squeezed into the base 4 by the action of gravity. At this time, the rotating ball 5 is inserted into the base 4, and the bottom surface of the base 4 and the bottom of the rotating ball 5 are in contact with the ground at the same time to bear the weight. When the rotating ball 5 is inserted into the base 4, the rotating ball 5 and the auxiliary ball 14 are tightly pressed together and the auxiliary ball 14 is tightly pressed and inserted into the rotating groove 15, thereby limiting the greater force of both the rotating ball 5 and the auxiliary ball 14, and the auxiliary ball 14 transmits the force to After the sleeve 12 is inserted into the base 4, the rotating sleeve 11 is driven to drive the slider 9 to slide in the slide rail 7. The rotating sleeve 11 is inserted into the base 4, and the limit spring 8 is squeezed by the slider 9, and the sleeve 12 also squeezes the buffer spring 13. At the same time, when the rotating sleeve 11 is inserted into the bottom of the base 4, one end of the resistance rod 10 movably inserted at the bottom of the sleeve 12 will contact the bottom inner wall of the folding groove 6 opened in the base 4, thereby resisting the resistance rod 10. The resistance rod 10 resists the sleeve 12 and the rotating ball 5, and the two-way fit is fixed, thereby fixing the rotating ball 5, thereby preventing the rotating ball 5 from rotating, and the scale body 1 is fixed for weighing;

[0052] After the person has finished weighing and steps down from the scale body 1, the rebound of the limit spring 8 and the return spring will cause the rotating ball 5 to pop out of the base 4 again and touch the ground, and reduce the squeezing friction between the auxiliary ball 14 and the rotating ball 5, so that the rotating ball 5 can be rotated, and the scale body 1 can be kicked back to the corner of the wall, making it easier to move the scale body 1.

[0053] When the scale body 1 is fully lifted, the rotating ball 5 will protrude outward from the base 4 to the limit position due to its own weight. At this time, the sliders 9 on both sides of the rotating sleeve 11 will reach the limit position at the end of the slide rail 7. After the scale body 1 is placed on the ground, the rotating ball 5 will be inserted into the base 4 for a certain distance according to the weight of the scale body 1 itself, and the slider 9 will squeeze the limit spring 8. The resistance generated by the elastic potential energy of the limit spring 8 and the buffer spring 13 itself facilitates the movement of the scale body 1 and uses the weight of the weighing person to provide a fixing force for the scale body 1.

[0054] Overall structure and basic functions

[0055] The height and weight scale comprises a scale body 1 and bases 4 at the four corners of the bottom.

[0056] The surface of the scale body 1 is integrated with a camera 3 (for height measurement) and a display screen 2 (synchronously displaying weight and height data) to achieve integrated intelligent measurement.

[0057] A folding slot 6 is provided inside the base 4 (one end close to the ground is open and the other end is closed), and its core components are:

[0058] Multiple sets of rotating balls 5 are retractably installed in the folding groove 6. When unloaded, they protrude from the bottom of the base 4 and touch the ground, and the scale body 1 is moved by rotation. When loaded, they are retracted and limited to fix the scale body 1.

[0059] Limiting mechanism: It is connected to the rotating ball 5 and realizes the "moving-fixed" state switching through mechanical friction. The specific structure is as follows:

[0060] The linkage mechanism between the limiting mechanism and the rotating ball 5:

[0061] Basic installation structure of rotating ball 5

[0062] The rotating ball 5 is rotatably installed in the rotating sleeve 11. The opening of the rotating sleeve 11 is inclined, and the size of the opening end is smaller than the diameter of the rotating ball 5, ensuring that the rotating ball 5 can only rotate in the rotating sleeve 11 and cannot fall off.

[0063] The two sides of the rotating sleeve 11 are slidably connected to the slide rails 7 on both sides of the open end of the folding groove 6 of the base 4 through the sliders 9. A limit spring 8 is provided between the sliders 9 and the slide rails 7 to provide elastic support for the rotating sleeve 11.

[0064] Fixing mechanism under load:

[0065] When a person stands on the scale body 1, the rotating ball 5 bears the weight of the scale body 1 + the person, triggering the following actions:

[0066] The rotating ball 5 contracts under pressure: it is pressed into the inside of the folding groove 6, pushing the rotating sleeve 11 to move along the slide rail 7 toward the closed end of the folding groove 6, and compressing the limit spring 8.

[0067] The locking of the jacket 12 and the auxiliary ball 14:

[0068] The closed end of the rotating sleeve 11 is slidably inserted into the clamping sleeve 12, and the inner wall of the clamping sleeve 12 is provided with a rotating groove 15, and the auxiliary ball 14 is rotatably connected in the rotating groove 15 (the opening size of the rotating groove 15 is smaller than the diameter of the auxiliary ball 14 to prevent it from falling off).

[0069] The rotating ball 5 squeezes the auxiliary ball 14 and drives the abutment rod 10 to move toward the closed end of the folding groove 6 through the jacket 12 until the end of the abutment rod 10 abuts against the inner wall of the folding groove 6 .

[0070] at this time:

[0071] The auxiliary ball 14 is tightly squeezed in the rotation groove 15, and the frosted surface of the inner wall of the rotation groove 15 produces damping on the auxiliary ball 14, limiting its rotation;

[0072] The buffer spring 13 outside the jacket 12 is compressed, and provides a reverse support force together with the limit spring 8, so that the rotating sleeve 11, the jacket 12 and the rotating ball 5 form a rigid resistance, locking the rotating ball 5 from rotating.

[0073] Coordinated load-bearing design: When the rotating ball 5 is squeezed to the limit position, its tip is flush with the end surface of the base 4, ensuring that the bottom surface of the base 4 and the rotating ball 5 bear the load together, avoiding complete contraction and causing structural failure.

[0074] Movement mechanism in no-load state:

[0075] When the scale body 1 only bears its own weight, the load on the rotating ball 5 is small, and the elastic potential energy of the limit spring 8 and the buffer spring 13 causes the rotating ball 5 to partially protrude from the base 4:

[0076] The rotating sleeve 11 drives the slider 9 to be located in the middle of the slide rail 7. The auxiliary ball 14 has little resistance to the rotating ball 5, so the rotating ball 5 can be easily rotated, thereby realizing manual movement of the scale body 1 (such as kicking).

[0077] The slight friction between the auxiliary ball 14 and the rotating ball 5 provides a certain resistance to prevent the scale body 1 from sliding out of control, thereby facilitating accurate positioning.

[0078] Usage scenarios and operation procedures:

[0079] Mobile scene (no load):

[0080] The scale body 1 is moved from a storage location such as a corner to a use area by kicking or gently pushing, and the rotating ball 5 rotates to provide low-resistance displacement.

[0081] During the movement, the damping effect of the auxiliary balls 14 prevents the scale body 1 from sliding too far, making it easier to control the moving distance.

[0082] Weighing scenario (load):

[0083] After a person stands on the scale body 1, the rotating ball 5 is compressed and contracts, triggering the limit mechanism to lock, and the scale body 1 is fixed.

[0084] The camera 3 captures the height of the person, and the weighing sensor measures the weight simultaneously, and the data is displayed on the display screen 2 in real time.

[0085] Reset scenario:

[0086] After the personnel leave, the limit spring 8 and the buffer spring 13 rebound, and the rotating ball 5 protrudes out of the base 4 again, recovering the movable state, which is convenient for returning to the original position for storage.

[0087] Transport scenarios:

[0088] When the scale body 1 is fully lifted, the rotating ball 5 protrudes to the limit position due to its own weight (the slider 9 abuts against the end of the slide rail 7), which is convenient for short-distance transportation or position adjustment.

[0089] Key technical effects:

[0090] Automatic switching function: The adaptive switching of "no-load movement - load fixation" is realized through the mechanical structure, eliminating the need for manual operation and improving ease of use.

[0091] Double load-bearing design: The base 4 and the rotating ball 5 work together to bear the weight, ensuring stability and structural strength.

[0092] Damping control mechanism: The auxiliary ball 14 cooperates with the frosted surface of the rotating groove 15 to balance the movement flexibility and positioning accuracy to avoid accidental touch displacement.

[0093] The above structure realizes the functional requirements of the height and weight scale under different working conditions through the combination of spring elastic potential energy and mechanical friction, and has both mobility and weighing stability.

[0094] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A height and weight scale, comprising a scale body (1), wherein bases (4) are provided at the four corners of the bottom of the scale body (1), characterized in that: Also includes: A plurality of rotating balls (5), wherein the plurality of rotating balls (5) are telescopically arranged in the base (4) and protrude outward from the bottom of the base (4) to contact the ground and provide bearing for the scale body (1) while performing rotational displacement; A limiting mechanism is provided, wherein the limiting mechanism is in transmission connection with the rotating ball (5). When the rotating ball (5) bears only the weight of the scale body (1), the scale body (1) is moved by the rotation of the rotating ball (5); when the rotating ball (5) bears the weight of the scale body (1) and the weighing person, the rotating ball (5) passively interferes with the limiting mechanism, restricting the rotation of the rotating ball (5) and providing fixation for the scale body (1), and automatically switching the movement and fixation of the scale body (1) according to the usage situation.

2. A height and weight scale according to claim 1, characterized in that: The folding groove (6) in the base (4) has an open end at one end of the folding groove (6) close to the ground, and the other end in the folding groove (6) is a closed end.

3. A height and weight scale according to claim 1, characterized in that: The limiting mechanism comprises a slide rail (7) provided on both sides of the opening end of the folding groove (6); a slider (9) is slidably connected to the slide rail (7) via a limiting spring (8); the slider (9) is fixedly mounted on both sides of the opening end of the rotating sleeve (11); and a rotating ball (5) is rotatably mounted in the rotating sleeve (11).

4. A height and weight scale according to claim 2, characterized in that: The limiting mechanism further comprises a jacket (12) slidably plugged into the closed end of the rotating sleeve (11), wherein the inner side wall of the jacket (12) is provided with a plurality of rotating grooves (15), and an auxiliary ball (14) is rotatably connected in the rotating groove (15).

5. A height and weight scale according to claim 4, characterized in that: The outer side of the closed end of the jacket (12) is fixedly connected to one end of the abutment rod (10), and the other end of the abutment rod (10) slides through the outer side of the closed end of the rotating sleeve (11) and abuts against the inner side wall of the closed end of the folding groove (6). The outer side of the jacket (12) is connected to the inner side wall of the rotating sleeve (11) via a buffer spring (13).

6. A height and weight scale according to claim 4, characterized in that: The opening of the rotating sleeve (11) is inclined, and the size of the opening end of the rotating sleeve (11) is smaller than the size of the edge of the internal cavity connecting the opening end, and the size of the opening end of the rotating sleeve (11) is smaller than the diameter of the rotating ball (5), so that the rotating ball (5) can only rotate in the rotating sleeve (11) and cannot fall off from the rotating sleeve (11).

7. A height and weight scale according to claim 4, characterized in that: The opening of the rotating groove (15) is inclined, and the size of the opening end of the rotating groove (15) is smaller than the size of the edge of the internal cavity connecting the opening end, and the size of the opening end of the rotating groove (15) is smaller than the diameter of the auxiliary ball (14), so that the auxiliary ball (14) can only rotate in the rotating groove (15) and cannot fall out of the rotating groove (15).

8. A height and weight scale according to claim 7, characterized in that: The surfaces of the rotating ball (5) and the auxiliary ball (14) are both smooth, and the inner sidewall of the rotating groove (15) is frosted, providing damping for the rotation of the auxiliary ball (14).

9. A height and weight scale according to claim 8, characterized in that: When the rotating ball (5) is squeezed to the extreme position, the abutting rod (10) plugged into the closed end of the rotating sleeve (11) contacts the inner side wall of the closed end of the folding groove (6), and the tip of the rotating ball (5) is flush with the end surface of the base (4) away from the scale body (1), and does not completely retract into the folding groove (6), so that the rotating ball (5) and the base (4) cooperate to provide load-bearing for the scale body (1).

10. A height and weight scale according to claim 1, characterized in that: The surface of the scale body (1) is provided with a camera (3) for measuring a person's height, and a display screen (2) for displaying weight and height information.

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