A child head circumference measuring cap

By designing an automatic winding device and positioning components for children's head circumference measurement caps, the problems of slow measurement speed and low accuracy in existing technologies have been solved, achieving fast and accurate head circumference measurement.

CN224523096UActive Publication Date: 2026-07-21THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
Filing Date
2025-03-12
Publication Date
2026-07-21

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Abstract

The utility model discloses a child head circumference measurement cap, including the hat body with the brim, the bottom of hat body is provided with the cavity away from the side of brim, the cavity is along the edge of hat body and is provided with the flexible ruler of sliding sleeve in this cavity, and, one end of one side of brim and hat body connection is provided with automatic winding device, and the other end of one side of brim and hat body connection is provided with the positioning piece, one end of flexible ruler is connected with automatic winding device and the other end of flexible ruler is detachable connection after passing through the cavity and with the positioning piece. The utility model has the advantages of convenient and fast measurement, can effectively improve the measuring accuracy.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a head circumference measuring cap for children. Background Technology

[0002] Head circumference measurement is an important indicator for monitoring growth and development, reflecting the development of a child's head. It is also a crucial basis for the diagnosis and treatment of neurosurgical diseases, playing a key role, especially in the diagnosis of conditions such as hydrocephalus and craniosynostosis in children. Currently, the main clinical method is the soft measuring tape method. This method requires starting from the upper edge of the brow ridge, passing around the upper edge of the ear and the occipital protuberance. However, key points such as the brow ridge, ear, and occipital protuberance need to be manually positioned, which is prone to systematic bias due to differences in operator experience. Especially when measuring children, their poor cooperation often causes the measuring tape to shift due to movement, further exacerbating measurement errors.

[0003] To address the aforementioned issues, Chinese utility model patent application number CN202022621633.8 discloses an infant head circumference measuring cap. This cap can be worn directly on an infant's head. After adjusting the lower edge of the cap and tightening the first and second ends of the soft head circumference measuring ruler, the infant's head circumference can be measured using the ruler. During this process, the soft ruler does not undergo elastic deformation, ensuring accurate and reliable head circumference measurements. Furthermore, once worn, the cap is unlikely to shift or fall off even if the infant's head moves, making head circumference measurement quick, time-saving, and labor-saving, with strong adaptability. However, this infant head circumference measuring cap relies on manually pulling the measuring ruler to take the reading. Pulling the ruler is slow and inefficient, and the reading is easily deviated by factors such as the subject's head movement or the measurer's hand movements, reducing the accuracy of the measurement.

[0004] How to solve the above problems has become an urgent technical issue. Utility Model Content

[0005] The purpose of this invention is to provide a children's head circumference measuring cap that is convenient and quick to measure and can effectively improve the accuracy of measurement.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a children's head circumference measuring hat, including a hat body with a brim; a cavity is provided on the bottom of the hat body away from the brim, the cavity is provided along the edge of the hat body and a soft measuring tape is slidably sleeved in the cavity, and an automatic winding device is provided at one end of the side of the brim connected to the hat body, and a positioning member is provided at the other end of the side of the brim connected to the hat body, one end of the soft measuring tape is connected to the automatic winding device and the other end of the soft measuring tape passes through the cavity and is detachably connected to the positioning member.

[0008] Furthermore, the flexible measuring tape includes a measuring tape, one end of which is connected to an automatic winding device and the other end of which is connected to a tenon block. The tenon block is detachably connected to a positioning member. Additionally, the measuring tape is slidably fitted into a cavity and is provided with graduations.

[0009] Furthermore, the initial value of the scale is equal to the side length of the side where the brim connects to the hat body.

[0010] Furthermore, the positioning component includes a groove, which is fixedly connected to the brim and has a slot and a flat groove. The tenon is inserted into the slot, and the flat groove is connected to the slot and has a clearance fit with the ruler.

[0011] Furthermore, the cross-sectional area of ​​both the cavity and the flat groove is smaller than the cross-sectional area of ​​the tenon.

[0012] Furthermore, the automatic winding device includes a housing, which is fixedly connected to the brim and has a coil spring inside. One end of the coil spring is fixedly connected to the housing and the other end of the coil spring is fixedly connected to the end of the ruler away from the tenon.

[0013] Due to the adoption of the above structure, the beneficial effects of this utility model are as follows:

[0014] This invention features an automatic rewinding device and a positioning element installed on the brim of a hat. One end of the measuring tape passes through a cavity and connects to the positioning element. When the hat is worn on a child's head, the automatic rewinding device provides power to pull the measuring tape back into the device, causing the cavity to tighten and hold the child's head in place. The operation is simple and quick, and it effectively prevents the measuring tape from shifting due to the child's head movement during measurement, thus significantly improving the efficiency and accuracy of the measurement.

[0015] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a bottom view of the present invention;

[0019] Figure 3 This is a partially enlarged view of part A of this utility model. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 3 This utility model provides a children's head circumference measuring hat, including a hat body 2 with a brim 1; a cavity 3 is provided on the bottom side of the hat body 2 away from the brim 1, the cavity 3 is provided along the edge of the hat body 2 and a flexible measuring tape 4 is slidably fitted in the cavity 3, and an automatic winding device 5 is provided at one end of the side of the brim 1 connected to the hat body 2, and a positioning member 6 is provided at the other end of the side of the side of the brim 1 connected to the hat body 2, one end of the flexible measuring tape 4 is connected to the automatic winding device 5, and the other end of the flexible measuring tape 4 passes through the cavity 3 and is detachably connected to the positioning member 6. During measurement, the hat body 2 is put on the child's head, and the end of the flexible measuring tape away from the automatic winding device 5 is connected to the positioning member 6. The automatic winding device 5 pulls the flexible measuring tape 4 in the direction of retracting it into the automatic winding device 5, which can drive the cavity 3 to tighten and hold the child's head. The operation is simple and quick, and can effectively prevent the position of the flexible measuring tape from shifting due to the movement of the child's head during measurement, effectively improving the efficiency and accuracy of measurement.

[0022] Preferably, the cap body 2 and the cavity 3 are both made of fabric and are sewn together as one piece.

[0023] In this invention, the flexible measuring tape 4 includes a tape 41, one end of which is connected to an automatic winding device 5, and the other end of which is connected to a tenon 42. The tenon 42 is detachably connected to a positioning member 6. The tape 41 is slidably fitted into a cavity 3, and the tape 41 is provided with a scale. During measurement, the cap 2 is placed on the child's head, and the tenon 42 is connected to the positioning member 6. The automatic winding device 5 pulls the tape 41 to move it back into the automatic winding device 5, causing the cavity 3 to tighten and securely hold the child's head. At this time, the head circumference of the child can be obtained by reading the value of the tape 41 near the automatic winding device 5 through the scale.

[0024] In the prior art, the starting value of the scale of the circumference measuring ruler is generally zero. In this utility model, the starting value of the scale is equal to the side length of the side where the brim 1 and the hat body 2 are connected. Thus, the measured head circumference can be obtained by directly reading the value of the measuring tape 41 near the automatic winding device 5. Compared with the existing circumference measuring ruler, the step of subtracting the side length of the side where the brim 1 and the hat body 2 are connected is saved, making the measurement more convenient and faster.

[0025] Please refer to Figure 3 In this utility model, the positioning component 6 includes a groove 61, which is fixedly connected to the brim 1. The groove 61 has a slot 62 and a flat groove 63. The tenon 42 is inserted into the slot 62, and the flat groove 63 is connected to the slot 62 and has a clearance fit with the tape 41. Specifically, the top of the groove 61 is fixedly connected to the bottom surface of the brim 1. The bottom surfaces of both the slot 62 and the flat groove 63 are open. Therefore, when the tenon 42 is inserted into the slot 62, the tape 41 can simultaneously enter the slot 62 through the flat groove 63 and be fixedly connected to the tenon 42. After the tenon 42 is inserted into the slot 62, it is fixed by friction, a snap-fit, or magnetic attraction, achieving a detachable connection between the tenon 42 and the slot 62 and effectively resisting gravity.

[0026] In this invention, the cross-sectional areas of both the cavity 3 and the flat groove 63 are smaller than the cross-sectional area of ​​the tenon 42. Specifically, the cross-sectional area of ​​the cavity 3 along its length is smaller than the cross-sectional area of ​​the tenon 42 on its perpendicular surface, thereby preventing the tenon 42 from retracting into the cavity 3 after disengaging from the slot 62; the cross-sectional area of ​​the flat groove 63 along its length is smaller than the cross-sectional area of ​​the tenon 42 on its perpendicular surface, thereby preventing the tenon 42 from disengaging from the side of the slot 62.

[0027] Please refer to Figure 2 In this utility model, the automatic rewinding device 5 includes a housing 51, which is fixedly connected to the brim 1 and has a coil spring 52 inside. One end of the coil spring 52 is fixedly connected to the housing 51 and the other end of the coil spring 52 is fixedly connected to the end of the ruler 41 away from the tenon 42, so that the soft ruler 4 can be automatically pulled to move in the direction of rewinding back into the housing 51, thereby driving the cavity 3 to tighten and hold the child's head. The specific rewinding principle can refer to the working principle of existing technologies such as the measuring tape and the HC-02 three-dimensional ruler, which will not be repeated here.

[0028] In use, the measuring tape 4 is first pulled out of the automatic winding device 5 to a sufficient length so that the bottom of the cap 2 can be opened into a circle. Then, the cap 2 is placed on the child's head, and the tenon 42 is inserted into the slot 62. The coil spring 52 winds up and pulls the measuring tape 41 towards the retracted outer shell 51, causing the cavity 3 to tighten and securely hold the child's head. At this time, the child's head circumference can be obtained by reading the value of the measuring tape 41 near the automatic winding device 5. Therefore, this invention is simple and quick to operate, and can effectively avoid the displacement of the measuring tape caused by the child's head movement during measurement, effectively improving the efficiency and accuracy of measurement.

[0029] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the substantive content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A children's head circumference measuring cap, comprising a cap body (2) with a brim (1); characterized in that: A cavity (3) is provided on the side of the bottom of the hat body (2) away from the brim (1). The cavity (3) is provided along the edge of the hat body (2) and a soft ruler (4) is slidably fitted in the cavity (3). An automatic winding device (5) is provided at one end of the side of the brim (1) connected to the hat body (2), and a positioning member (6) is provided at the other end of the side of the side of the brim (1) connected to the hat body (2). One end of the soft ruler (4) is connected to the automatic winding device (5), and the other end of the soft ruler (4) passes through the cavity (3) and is detachably connected to the positioning member (6).

2. The children's head circumference measuring cap according to claim 1, characterized in that: The flexible measuring tape (4) includes a measuring tape (41), one end of which is connected to an automatic winding device (5) and the other end of which is connected to a tenon (42). The tenon (42) is detachably connected to a positioning member (6). The measuring tape (41) is slidably fitted into a cavity (3) and is provided with a scale.

3. A children's head circumference measuring cap according to claim 2, characterized in that: The starting value of the scale is equal to the side length of the side where the brim (1) and the hat body (2) are connected.

4. A children's head circumference measuring cap according to claim 2 or 3, characterized in that: The positioning component (6) includes a groove (61), which is fixedly connected to the brim (1) and has a slot (62) and a flat groove (63) on it. The tenon (42) is inserted into the slot (62), and the flat groove (63) is connected to the slot (62) and is gap-fitted with the ruler (41).

5. A children's head circumference measuring cap according to claim 4, characterized in that: The cross-sectional area of ​​the cavity (3) and the flat groove (63) is smaller than that of the tenon (42).

6. A children's head circumference measuring cap according to claim 2 or 3, characterized in that: The automatic winding device (5) includes a housing (51), which is fixedly connected to the brim (1) and a coil spring (52) is provided inside the housing (51). One end of the coil spring (52) is fixedly connected to the housing (51) and the other end of the coil spring (52) is fixedly connected to the end of the ruler (41) away from the tenon (42).