Sleeving type accurate four-limb dimension measuring device

Abstract

The utility model discloses a sleeve type accurate four-limb dimension measuring device, which belongs to the technical field of medical instruments and comprises a fixed part and a movable part, the fixed part and the movable part are arc-shaped, two ends of the fixed part are connected with clamping rods in a sliding manner, and the clamping rods are connected with the movable part in a sliding manner. A measuring rod is arranged between the fixed part and the movable part, one end of the measuring rod is fixed on the side of the fixed part, the other end is fixed on the side of the movable part, a fixed frame is fixed on the movable part away from the fixed part, and a tape is wound inside the fixed frame; the measuring device is suitable for measurement of different crowds, the girth can be measured while the lengths of arms or thighs and shanks are measured, measurement is efficient, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to a sleeve-type precise limb dimension measuring device. Background Art

[0002] In medicine, it is necessary to measure the length and circumference of limbs to determine growth characteristics and other issues. Existing rulers for measuring limb dimensions generally use tape measures. When measuring the dimensions of human limbs, it is necessary to determine the distance from different positions on the limbs to the wrist or ankle multiple times, and then measure the dimensions at that position and record the comprehensive data. Multiple measurements will increase the measurement error and are not practical. Utility Model Content

[0003] The utility model aims to provide a sleeve-type accurate limb dimension measuring device, which is suitable for measuring different groups of people and can measure the circumference while measuring the length of arms or legs, with efficient measurement and easy use.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sleeve-type precise limb dimension measuring device, which comprises a fixed part and a movable part, the fixed part and the movable part are both arc-shaped, and clamping rods are slidably connected at both ends of the fixed part, and a measuring rod is provided between the fixed part and the movable part, one end of the measuring rod is fixed to the side of the fixed part, and the other end is fixed to the side of the movable part, and a fixed frame is fixed to the movable part away from the fixed part, and a tape measure is wound inside the fixed frame.

[0005] Furthermore, a slide groove is provided inside the fixing part, and two slide grooves are symmetrically provided about the fixing part. The clamping rod is slidably connected inside each slide groove. A spring is fixed to the end of the clamping rod facing the inside of the slide groove, and the other end of the spring is fixed to the inner wall of the slide groove.

[0006] Furthermore, a protrusion is fixed on the end of the clamping rod away from the sliding groove.

[0007] Furthermore, the measuring rod includes a plurality of sliding rods, each of which is provided with a plurality of scale bars, one end of one sliding rod is fixed to the side of the fixed part, one end of another sliding rod is fixed to the side of the movable part, and the plurality of sliding rods are nested and slided with each other.

[0008] Furthermore, a cross bar is fixed inside the fixed frame, and a spiral sheet is fixed outside the cross bar. The spiral sheet is fixedly connected to one end of the tape measure away from the cross bar end, and the other end of the tape measure extends out of the fixed frame along the side of the fixed frame. A pull ring is fixed to the end of the tape measure extending out of the fixed frame, and the bottom surface of the tape measure fits with the bottom of the fixed frame.

[0009] Furthermore, the fixing frame is provided with an embedding groove on the side away from the tape measure, and a convex mirror is clamped inside the embedding groove.

[0010] The beneficial effects of the utility model are:

[0011] 1. A fixed part and a movable part are set, which are connected by a slidable and retractable measuring rod. It can be used to measure the length of arms or legs of different lengths. At the same time, a circumference measurement is fixed on the movable part. The circumference can be measured at the same time as the length. The measurement efficiency is high, the measurement method is simple and direct, and it is easy to use.

[0012] 2. A convex mirror is set inside the fixed frame to facilitate direct observation of the circumference measurement value.

[0013] 3. An elastically connected clamping rod is arranged inside the fixing part, which provides stable clamping and maintains effective fixation during subsequent measurement, thereby improving measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a set-type accurate limb dimension measuring device provided by the utility model;

[0015] Figure 2 The utility model provides a set of precise limb dimension measuring devices Figure 1 Schematic diagram of the bottom perspective;

[0016] Figure 3 The utility model provides a set of precise limb dimension measuring devices Figure 2 AA line cross-sectional view;

[0017] Figure 4 The utility model provides a set of precise limb dimension measuring devices Figure 2 Schematic diagram of the cross-section along the BB line;

[0018] Figure 5 The utility model provides a set of precise limb dimension measuring devices Figure 4 The enlarged schematic diagram at A in the middle;

[0019] Figure 6 It is a schematic diagram of the interior of the moving part of a sleeve-type accurate limb dimension measuring device provided by the utility model;

[0020] Figure 7 The utility model provides a set of precise limb dimension measuring devices Figure 6 Enlarged schematic diagram of point B in the middle.

[0021] In the figure: 1. fixed part; 2. movable part; 3. clamping rod; 4. measuring rod; 5. fixed frame; 6. tape measure; 7. slide groove; 8. spring; 9. protrusion; 10. sliding rod; 11. scale bar; 12. cross bar; 13. vortex sheet; 14. pull ring; 15. embedding groove; 16. convex mirror. DETAILED DESCRIPTION

[0022] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0023] Please also refer to Figures 1 to 5 The sleeve-type precise limb dimension measuring device of an embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1 As shown, the sleeve-type precise limb dimension measuring device includes a fixed part 1 and a movable part 2, the fixed part 1 and the movable part 2 are both arranged in an arc shape, a clamping rod 3 is slidably connected at both ends of the fixed part 1, a measuring rod 4 is provided between the fixed part 1 and the movable part 2, one end of the measuring rod 4 is fixed to the side of the fixed part 1, and the other end is wound inside the movable part 2, a fixed frame 5 is fixed to the movable part 2 away from the fixed part 1, and a tape measure 6 is wound inside the fixed frame 5.

[0025] In this embodiment, the length of the arm or leg is measured by the measuring rod 4, and the circumference of the arm or leg is measured by the tape measure 6. When measuring, the fixed part 1 is placed at the starting point of the measuring part, and the movable part 2 is pulled to the end point of the measuring part. The scale value on the measuring rod 4 is read as the measurement result.

[0026] Among them, a slide groove 7 is provided inside the fixing part 1, and two slide grooves 7 are symmetrically provided about the fixing part 1. The inside of each slide groove 7 is slidably connected to the clamping rod 3. A spring 8 is fixed to the inner end of the clamping rod 3 facing the inner end of the slide groove 7, and the other end of the spring 8 is fixed to the inner wall of the slide groove 7.

[0027] A protrusion 9 is fixed to the end of the clamping rod 3 away from the sliding groove 7 .

[0028] When placed at the measuring position, since the clamping rod 3 first contacts the measuring position, the clamping rod 3 slides toward the inside of the slide groove 7 after the contact, and the spring 8 begins to shrink. Then the spring 8 has a reset potential energy, which gives the clamping rod 3 a force toward the outside of the slide groove 7. Therefore, the clamping rod 3 can be clamped at the measured position. At the same time, the protrusion 9 provided can increase friction and further improve the clamping stability of the clamping rod 3.

[0029] As an embodiment, the measuring rod 4 includes a plurality of sliding rods 10, each of which is provided with a plurality of scale bars 11, one end of one of the sliding rods 10 is fixed to the side of the fixed part 1, one end of another sliding rod 10 is fixed to the side of the movable part 2, and the plurality of sliding rods 10 are nested and slidable with each other.

[0030] In this embodiment, three sliding rods 10 are provided, and the values ​​of the scale bars 11 on each sliding rod 10 are 10 cm, 15 cm, and 20 cm in the direction from the fixed part 1 to the movable part 2. The sliding rods 10 can slide against each other, and the bottom surface of each sliding rod 10 is flush with the inner side surface of the fixed part 1. During measurement, each sliding rod 10 can fit the arm or leg, thereby improving the measurement accuracy.

[0031] When measuring the length of the arm or calf, taking the arm as an example, the fixed part 1 is placed at the starting point of the arm measurement, such as the wrist, and the clamping rod 3 is placed on both sides of the wrist. The fixed part 1 is fixed, and the movable part 2 is pulled toward the forearm to the elbow. At this time, observe the scale value of the measuring rod 4 located in the groove of the movable part 2, which is the length value of the forearm. After the measurement is completed, the movable part 2 can be loosened, and the measuring rod 4 can be automatically retracted when the first vortex sheet 11 rebounds.

[0032] As an implementation mode, a cross bar 12 is fixed inside the fixed frame 5, and a spiral sheet 13 is fixed outside the cross bar 12. The spiral sheet 13 is fixedly connected to one end of a tape measure 6 at the end away from the cross bar 12. The other end of a measuring rod 4 extends out of the fixed frame 5 along the side of the fixed frame 5. A pull ring 14 is fixed to the end of the tape measure 6 extending out of the fixed frame 5. The bottom surface of the tape measure 6 is fitted with the bottom of the fixed frame 5. The above-mentioned tape measure 6 is rolled up in the same manner as the measuring rod 4, and is automatically rolled up to the outside of the spiral sheet 13 in the absence of external force.

[0033] At the same time, an embedding groove 15 is provided on the side of the fixing frame 5 away from the tape measure 6 , and a convex mirror 16 is clamped inside the embedding groove 15 .

[0034] After the moving part 2 is pulled, the circumference of the corresponding part of the moving part 2 can be measured at the same time. After the measurement of the moving part 2 is completed, the moving part 2 is kept stationary, and the tape measure 6 is pulled out around the part by pulling the pull ring 14. At the same time, the scale of the tape measure 6 inside the fixed frame 5 is observed through the convex mirror 16, which is the circumference value of the measured part.

[0035] Particularly, the fixed portion, the movable portion, the clamping rod and the protrusion in this embodiment are all made of rubber material.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A set-type accurate limb dimension measuring device, characterized in that: The sleeve-type precise limb dimension measuring device comprises a fixed part (1) and a movable part (2), wherein the fixed part (1) and the movable part (2) are both arranged in an arc shape, a clamping rod (3) is slidably connected to both ends of the fixed part (1), a measuring rod (4) is arranged between the fixed part (1) and the movable part (2), one end of the measuring rod (4) is fixed to the side of the fixed part (1), and the other end is wound inside the movable part (2), a fixed frame (5) is fixed to the movable part (2) away from the fixed part (1), and a tape measure (6) is wound inside the fixed frame (5).

2. The sleeve-type precise limb dimension measuring device according to claim 1, characterized in that: The fixing portion (1) is provided with a slide groove (7) inside, and two slide grooves (7) are symmetrically provided with respect to the fixing portion (1). The inside of each slide groove (7) is slidably connected to the clamping rod (3), and a spring (8) is fixed to the inner end of the clamping rod (3) facing the inner end of the slide groove (7), and the other end of the spring (8) is fixed to the inner wall of the slide groove (7).

3. The sleeve-type precise limb dimension measuring device according to claim 2, characterized in that: A protrusion (9) is fixed on the end of the clamping rod (3) away from the slide groove (7).

4. The sleeve-type precise limb dimension measuring device according to claim 1, characterized in that: The measuring rod comprises a plurality of sliding rods, each of which is provided with a plurality of scale bars, one end of one sliding rod is fixed to the side of the fixed part, one end of another sliding rod is fixed to the side of the movable part, and the plurality of sliding rods are nested and slided with each other.

5. The sleeve-type precise limb dimension measuring device according to claim 1, characterized in that: A cross bar (12) is fixed inside the fixed frame (5), and a vortex sheet (13) is fixed outside the cross bar (12). The end of the vortex sheet (13) away from the cross bar (12) is fixedly connected to one end of the tape measure (6), and the other end of the tape measure (6) extends out of the fixed frame (5) along the side of the fixed frame (5). A pull ring (14) is fixed to the end of the tape measure (6) extending out of the fixed frame (5), and the bottom surface of the tape measure (6) is in contact with the bottom of the fixed frame (5).

6. The sleeve-type precise limb dimension measuring device according to claim 5, characterized in that: The fixing frame (5) is provided with an embedding groove (15) on the side away from the tape measure (6), and a convex mirror (16) is clamped inside the embedding groove (15).

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