CN109875563B - A leg circumference measuring instrument - Google Patents

Abstract

The invention discloses a leg circumference measuring instrument which comprises a clamping plate, wherein a pushing device is arranged on the clamping plate, an elastic curved plate is arranged on the clamping plate, a disc is arranged at the lower end of the clamping plate, a U-shaped hanging edge is fixedly connected at the edge of the upper end face of the disc, an elastic clamping piece is fixedly connected above the edge of one side far away from the clamping plate, the elastic clamping pieces on the discs on the two sides of the clamping plate are bilaterally symmetrical, and a connecting frame is fixedly connected to the front side of the middle position of the lower end face of the disc and is transparent front and back. According to the invention, the two side ruler plates are synchronously slid up and down through the linkage rod and the way of applying force simultaneously through motor transmission, so that the ruler plate drives the leather measuring tape connected with the ruler plate to move to the corresponding measuring position, under the condition that the stress of the fixed legs is consistent, the measuring positions of the two legs are simultaneously ensured to be the same, then the leather measuring tape is pulled out of the storage barrel, the measurement is carried out around the legs for one circle, and the corresponding size position of the leather measuring tape is marked by the seal block at the tail end of the leather measuring tape during the measurement, so that the recording is convenient.

Description

A leg circumference measuring instrument

Technical field

The invention relates to the technical field of leg circumference measurement, specifically a leg circumference measuring instrument.

Background technique

Leg circumference refers to the size of human leg circumference, which is mainly divided into thigh circumference and calf circumference. It is one of the human body shape indicators. It reflects the development level and degree of development of human leg muscles. Generally, the leg circumference will be measured as needed. girth measurement;

The shortcomings of general leg circumference measuring devices are: when generally measuring leg circumference, a simple leather tape measure is first used to wrap around one leg, then record the size, and then measure around the other leg, but in this order When measuring two legs, there is no guarantee that the positions of the two measurements are the same or close, which will lead to larger data errors.

Contents of the invention

The purpose of the present invention is to provide a leg circumference measuring instrument to solve the problem in the above background technology. When measuring leg circumference, a simple leather tape measure is first used to wrap around one leg, then record the size, and then wrap around another leg. One leg is measured, but when two legs are measured in sequence, there is no guarantee that the positions of the two measurements are the same or close, which will lead to the problem of larger data errors.

In order to achieve the above object, the present invention provides the following technical solution: a leg circumference measuring instrument, including a splint, a push device is provided on the splint, and elastic curved plates connected to the push device are symmetrically provided on the left and right sides of the splint, The pushing device includes a motor fixed on the splint. The output end of the motor is provided with a push rod extending into the splint. The extending end of the push rod is symmetrically provided with two transition slopes; on each of the push rods, The elastic curved plates are all screwed with pull rods extending into the splint, and the extending end of each pull rod is screwed with a transmission block. Each side of the transmission block corresponding to the transition slope is provided with a matching Transmission slope; an upper tension spring and a lower tension spring are provided between the two transmission blocks, and the extending end of the push rod is located between the two tension springs;

There are discs connected horizontally and symmetrically on the left and right sides of the lower end of the plywood, and a U-shaped hanging edge is fixedly connected to the edge of the upper end surface of the disc, and the U-shaped opening of the U-shaped hanging edge is horizontally backward, and at the same time, the U-shaped hanging edge is upward. Protruding, the disc is fixedly connected with an elastic clip above the edge of the side away from the splint, and the elastic clips on the discs on both sides of the splint exist symmetrically, and the front side of the middle position of the lower end surface of the disc is fixed. There is a connecting frame and the connecting frame is transparent from front to back. A ruler plate crosses the inner side of the connecting frame. A linkage rod is fixed horizontally between the front ends of the ruler plates connected to the disks on both sides of the splint. There is a storage tube fixedly connected to the front end. There is a roller horizontally movable on the inside of the storage tube and the roller is in a forward and backward position. A leather tape measure is wound around the roller and the end of the leather tape measures out of the storage tube. , the end of the leather tape measure is fixed with a hook.

Preferably, an opening is provided on the plywood at a position corresponding to the transmission block, and a block is provided at the lower end of the opening corresponding to the inner wall of the plywood, and the transmission block is placed on the block at the corresponding end.

Preferably, the elastic clip has barbs arranged equidistantly from front to back on the end face facing the splint.

Preferably, balls are movably connected on the left and right inner walls of the connecting frame, and the balls contact the side walls corresponding to the ruler plate.

Preferably, a rotating handle is provided on the front exterior of the storage tube, and the rotating handle is fixed to the front rotating end of the roller.

Preferably, the end of the hook is fixed with a seal block and the end surface of the seal block is coated with ink pad.

Compared with the prior art, the beneficial effects of the present invention are:

1. The splint of the present invention is used to clamp between the thighs of a measurer, and makes the inner thighs contact the elastic curved panel, and at the same time, the paired discs connected by the splint are buckled on two sides through the raised U-shaped hanging edges. The position of the knee in front of the patella of the leg allows the measuring devices on the left and right sides to be at the same level, making measurement easier;

2. The present invention synchronously slides the ruler plates on both sides up and down through the linkage rod, so that the ruler plate drives the leather tape measure connected to it to move to the corresponding measurement position, while ensuring that the measurement positions of the two legs are the same, and then remove the leather tape measure from the storage tube Pull it out and measure around your leg. When measuring, make sure that the stamp block at the end of the tape marks the corresponding size position of the tape for easy recording.

3. The present invention uses a motor to drive the push rod, so that the contact force between the elastic curved plate and the inside of the two legs is consistent, and the force deformation of the leg muscles is also consistent, thereby improving measurement accuracy.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of a leg circumference measuring instrument according to the present invention;

Figure 2 is a view from direction A in Figure 1.

Figure 3 is a top structural view of a disc in a leg circumference measuring instrument of the present invention;

Figure 4 is an enlarged structural view of the connection between the disk and the ruler plate in a leg circumference measuring instrument according to the present invention;

Figure 5 is a bottom view of the connection between the disc and the ruler board in a leg circumference measuring instrument according to the present invention.

In the picture: 1-plywood; 2-elastic curved plate; 3-disc; 4-elastic clip; 5-barb; 6-U-shaped hanging edge; 7-leather tape measure; 8-retractor; 9-seal block; 10-Connection frame; 11-Ball; 12-Storage tube; 13-Turn handle; 14-foot plate; 15-Linkage rod; 16-Rolling column; 21-Motor; 22-Push rod; 23-Tie rod; 24-Transmission block; 25-upper tension spring; 26-lower tension spring; 31-building block.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to Figures 1-5. The present invention provides a technical solution: a leg circumference measuring instrument, which includes a splint 1. The left and right sides of the splint 1 are symmetrically provided with elastic curved plates 2. The splint 1 is provided with Pushing device, the pushing device includes a motor 21 fixed on the splint 1. The output end of the motor 21 is provided with a push rod 22 extending into the plywood 1. The extending end of the push rod 22 is symmetrically provided with two a transition slope; a pull rod 23 extending into the splint 1 is screwed to each elastic curved plate 2, and a transmission block 24 is screwed to the extending end of each pull rod 23. Each of the transmission blocks 24 is provided with a matching transmission slope on one side corresponding to the transition slope; an upper tension spring 25 and a lower tension spring 26 are provided between the two transmission blocks 24, and the extending end of the push rod 22 is located on both sides. Between the tension springs; there is an opening on the splint 1 at the position corresponding to the transmission block 24. At the lower end of the opening, there is a block 31 corresponding to the inner wall of the splint 1. The transmission block 24 is placed on the corresponding end of the block. Block 31 on

There are discs 3 connected symmetrically and horizontally on the left and right sides of the lower end of the plywood 1, and a U-shaped hanging edge 6 is fixedly connected to the edge of the upper end surface of the disc 3, and the U-shaped opening of the U-shaped hanging edge 6 is horizontally backward. The U-shaped hanging edge 6 protrudes upward, and the elastic clip 4 is fixedly connected to the edge of the disc 3 on the side away from the splint 1, and the elastic clips 4 on the disc 3 on both sides of the splint 1 exist symmetrically. A connecting frame 10 is fixed on the front side of the middle position of the lower end surface of the disc 3 and the connecting frame 10 is transparent from front to back. A ruler plate 14 crosses the inner side of the connecting frame 10 and is fixed at the front end of the ruler plate 14 There is a storage tube 12, and a roller 16 is movable horizontally on the inside of the storage tube 12, and the roller 16 is in a forward and backward position. A leather tape measure 7 is wound and fixed on the roller 16, and the end of the leather tape measure 7 extends from the storage tube 12 Passing out, the end of the leather tape measure 7 is fixedly connected with a draw hook 8 .

The elastic clip 4 has barbs 5 equidistantly arranged from front to back on the end face facing the splint 1. The barbs 5 are convenient for enhancing the stability of the elastic clip 4 when clamped on the outside of the leg; the connection frame 10 The left and right inner walls are all movable with balls 11, and the balls 11 are in contact with the corresponding side walls of the ruler plate 14. The balls 11 facilitate the ruler plate 14 to slide back and forth in the connection frame 10; the discs 3 on both sides of the splint 1 are connected A linkage rod 15 is fixed horizontally between the front ends of the ruler plates 14, and the linkage rod 15 facilitates the synchronous sliding of the ruler plates 14 on the left and right sides; a rotating handle 13 is provided on the outside of the front side of the storage tube 12, and the rotating handle 13 is fixedly connected to the roll. The front rotating end of the column 16, the rotating handle 13 facilitates the user to rotate the rolling column 16 from the outside of the storage tube 12 to retract the leather tape measure 7; the end of the hook 8 is fixedly connected with the seal block 9 and the end surface of the seal block 9 is coated with The ink pad and seal block 9 are convenient for marking the corresponding size position of the leather tape measure 7 when the leather tape measure 7 is measured around the leg.

Working principle: The splint 1 of the invention is used to clamp between the thigh or calf of the measurer, and makes the inner side of the thigh or calf contact the elastic curved plate 2, and at the same time, the paired discs 3 connected by the splint 1 pass through the convex The raised U-shaped hanging edge 6 is buckled at the knee position in front of the patella of both legs, so that the measuring devices on the left and right sides are at the same level, which is convenient for measurement; then, the motor 21 is started, and the push rod 22 moves toward the transmission rod 24. The transition slope at the corresponding end slides with the transmission slope. When the push rod 22 extends between the two transmission blocks 24, under the transmission action of the pull rod 23, the elastic curved panel 2 at the corresponding end moves horizontally outward to close to the thigh or calf, and Make the outer side of the thigh or calf fit the barb 5 on the elastic clip 4. The barb 5 is mainly used to increase the friction with the skin of the leg to avoid deviation in the measurement. The force is consistent and the leg shape changes are consistent. Improve the accuracy of measurement data.

When measuring the leg circumference, slide the ruler plates 14 on both sides up and down synchronously through the linkage rod 15, so that the ruler plate 14 drives the leather tape measure 7 connected to it to move to the corresponding measurement position, while ensuring that the measurement positions of the two legs are the same, and then Pull out the leather tape measure 7 from the storage tube 12 and measure it around the leg. When measuring, the seal block 9 at the end of the leather tape measure 7 marks the corresponding size position of the leather tape measure 7 for easy recording.

After the measurement is completed, the push rod 22 moves back. Under the force of the upper tension spring 25 and the lower tension spring 26, the two transmission blocks 24 move back to the middle of the splint 1, and the elastic curved plate 2 returns to the initial position. Since the transmission block 24 With the lower end placed on the block 31, the back and forth movement is smoother.

When it is necessary to disassemble or clean, remove the screw-connected elastic curved plate 2 and the pull rod 23, and take out the two transmission blocks 24 from the corresponding opening position of the transmission block 24.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (6)

1. A leg circumference measuring instrument, including a splint (1), characterized in that: a push device is provided on the splint (1), and the left and right sides of the splint (1) are symmetrically provided with elastic members connected to the push device. Curved plate (2), the pushing device includes a motor (21) fixed on the plywood (1), and a push rod (22) extending into the plywood (1) is provided at the output end of the motor (21). The extending end of the push rod (22) is symmetrically provided with two transition slopes; a pull rod (23) extending into the splint (1) is screwed to each of the elastic curved plates (2), and each A transmission block (24) is screwed to the extending end of the tie rod (23), and a matching transmission slope is provided on one side of each transmission block (24) corresponding to the transition slope; the two transmission blocks (24) An upper tension spring (25) and a lower tension spring (26) are provided between the blocks (24), and the extending end of the push rod (22) is located between the two tension springs; There are discs (3) symmetrically connected horizontally on the left and right sides of the lower end of the plywood (1), and U-shaped hanging edges (6) and U-shaped hanging edges (6) are fixedly connected on the upper edge of the disc (3). ), the U-shaped opening is horizontally backward, and the U-shaped hanging edge (6) protrudes upward. The disc (3) is fixedly connected with an elastic clip (4) above the edge of the side away from the splint (1) and the splint (1) The elastic clips (4) on the discs (3) on both sides exist symmetrically from left to right. A connection frame (10) is fixed on the front side of the middle position of the lower end surface of the disc (3) and the connection frame (10) ) is transparent from front to back, and the inner side of the connecting frame (10) is crossed by a ruler plate (14), and the front ends of the ruler plates (14) connected to the discs (3) on both sides of the splint (1) are horizontal A linkage rod (15) is fixedly connected, and a storage tube (12) is fixedly connected to the front end of the ruler board (14). There is a roller (16) horizontally movable on the inside of the storage tube (12) and the roller (16) ) is in the forward and backward position, a leather tape measure (7) is wound and fixed on the roller column (16), and the end of the leather tape measure (7) passes out of the storage tube (12). The end of the leather tape measure (7) A hook (8) is fixedly connected. 2. A leg circumference measuring instrument according to claim 1, characterized in that: an opening is provided on the splint (1) at a position corresponding to the transmission block (24), and at the lower end of the opening, there is an opening corresponding to the splint (24). 1) A block (31) is provided on the inner wall, and the transmission block (24) is placed on the block (31) at the corresponding end. 3. A leg circumference measuring instrument according to claim 1, characterized in that: the elastic clip (4) has barbs (4) arranged equidistantly from front to back on the end face facing the splint (1). 5). 4. A leg circumference measuring instrument according to claim 1, characterized in that: there are balls (11) movable on the left and right inner walls of the connecting frame (10), and the balls (11) are in contact with the ruler plate (14) corresponding to the side wall. 5. A leg circumference measuring instrument according to claim 1, characterized in that: a rotating handle (13) is provided on the front side of the storage tube (12), and the rotating handle (13) is fixedly connected to the roller (16) ) of the front rotating end. 6. A leg circumference measuring instrument according to claim 1, characterized in that: a seal block (9) is fixedly connected to the end of the hook (8) and the end surface of the seal block (9) is coated with ink pad.