A foot measurement device

Abstract

The present invention provides a foot measurement device, which relates to the technical field of measuring instruments and aims to solve the technical problem of inconvenient use of existing foot measurement devices. It includes a base, a foot bearing plate and a foot length measurement component. Among them, the base has a reference surface, the foot bearing plate is arranged on the base in a liftable manner, the foot bearing plate has a foot bearing surface parallel to the reference surface, a positioning plate is arranged on the foot bearing surface, and the positioning plate is configured such that when the foot is placed on the foot bearing surface and the heel fits with the positioning plate, the front end of the foot extends beyond the foot bearing plate. The foot length measurement component includes a first distance measurement module and an infrared sensor. The first distance measurement module is used to measure the distance between the reference surface and the foot bearing plate. The infrared sensor includes a transmitting module and a receiving module. The transmitting module is arranged on the reference surface, and the receiving module is arranged on the base and is located obliquely above the transmitting module. After the foot descends a certain distance with the foot bearing plate, the propagation of light from the transmitting module to the receiving module can be blocked. The foot measurement device of the present invention is convenient to measure.

Description

Technical Field

[0001] The present invention relates to the technical field of foot measuring instruments, and particularly to a foot measuring device. Background Art

[0002] The length and width of the foot are the main indicators for purchasing shoes. Common measurement methods for foot length and width, such as using a tape measure manually, are inconvenient to use because they require assistance from others or the user to bend down for measurement.

[0003] In view of the above problems, the Chinese utility model patent with the application number 2009202021878 provides a foot length sizing device. It uses a fixed rear baffle and a movable front push plate. By moving the front push plate, the length of the foot is made equal to the distance between the front push plate and the rear baffle, and then the foot length is measured by reading the distance between the front push plate and the rear baffle. However, it still requires manual adjustment of the front push plate, and the use is still relatively inconvenient.

[0004] The Chinese invention patent application with the application number 2011104314659 measures the length of the foot by setting multiple groups of infrared emission modules and receiving modules and counting the number of infrared emission modules and receiving modules blocked by the foot. It does not require manual participation and is relatively convenient for measurement. However, the measurement accuracy is related to the layout density of the infrared emission modules and receiving modules. The higher the accuracy, the more infrared emission modules and receiving modules are required, and the higher the cost. Summary of the Invention

[0005] Therefore, the present invention provides a foot measuring device to measure the foot size more conveniently.

[0006] The technical solution of the present invention is as follows:

[0007] A foot measuring device, comprising:

[0008] A base having a reference surface;

[0009] A foot bearing plate is disposed on the base in a liftable manner. The foot bearing plate has a foot bearing surface parallel to the reference surface. A positioning plate is provided on the foot bearing surface, and the positioning plate is configured such that when the foot is placed on the foot bearing surface and the heel fits against the positioning plate, the front end of the foot extends beyond the foot bearing plate;

[0010] A foot length measuring component, comprising a first distance measuring module and an infrared sensor. The first distance measuring module is used to measure the distance between the reference surface and the foot bearing plate. The infrared sensor includes a transmitting module and a receiving module. The transmitting module is disposed on the reference surface, and the receiving module is disposed on the base and is obliquely above the transmitting module;

[0011] After the foot descends a certain distance along with the foot bearing plate, it can block the propagation of light from the emission module to the receiving module.

[0012] Furthermore, it further includes a foot width measuring component. The foot width measuring component includes two clamping plates arranged on the foot bearing plate, and the two clamping plates are respectively slidably arranged on the foot bearing plate; and elastic members are respectively arranged between the two clamping plates and the foot bearing plate. Driven by the corresponding elastic members, the two clamping plates can clamp the foot along the width direction of the foot;

[0013] The foot measuring device further includes a second distance measuring module, and the second distance measuring module is used to measure the distance between the two clamping plates.

[0014] Furthermore, a limiting plate is arranged on the base, and a first locking portion is arranged on the limiting plate. A second locking portion is movably arranged on the foot bearing plate; when the second locking portion is combined with the first locking portion, it can lock the lifting of the foot bearing plate relative to the base;

[0015] A driving member is arranged on the foot bearing plate. The driving member is drivingly connected to the second locking portion, and the driving member can receive the downward pressure of the foot and drive the second locking portion to disengage the second locking portion from the first locking portion.

[0016] Furthermore, the first locking portion includes an insertion hole arranged on the limiting plate, and the second locking portion includes an insertion block slidably arranged on the foot bearing plate;

[0017] A first elastic member is arranged between the insertion block and the foot bearing plate. The first elastic member applies an elastic thrust to the insertion block to make the insertion block slide in the direction of inserting into the insertion hole;

[0018] A first inclined wedge surface is arranged on the insertion block, and a second inclined wedge surface abutting against the first inclined wedge surface is arranged on the driving member. When the driving member descends, it pushes the insertion block to slide in the direction of compressing the first elastic member.

[0019] Furthermore, two guiding plates are arranged on the foot bearing plate, and the two guiding plates are respectively arranged on the outer sides of the two clamping plates; guiding holes are respectively arranged on the two guiding plates, and guiding rods are arranged on the corresponding clamping plates. The guiding rods are slidably arranged in the guiding holes in a guiding manner;

[0020] The elastic member is a first spring. The first spring is sleeved on the guiding rod and abuts between the clamping plate and the corresponding guiding plate.

[0021] Further, it further includes two shift forks correspondingly arranged with the two clamping plates; the first end of the shift fork is sleeved on the corresponding guide rod and abuts between the first spring and the clamping plate; and the shift fork is drivingly connected to the driving member.

[0022] When the driving member bears the downward pressure of the foot part, it can push the shift fork so that the first end compresses the first spring.

[0023] Further, the driving member is provided with a first inclined surface, and in the direction from bottom to top, the first inclined surface extends obliquely outwards; the shift fork abuts against the first inclined surface.

[0024] Further, a sleeve is fixedly arranged on the reference surface, a lifting rod is arranged on the bottom surface of the foot bearing plate, and the lifting rod is slidably arranged in the sleeve.

[0025] The foot measuring device further includes a second spring, the second spring is sleeved on the sleeve and abuts between the base and the foot bearing plate.

[0026] The working principle and beneficial effects of the present invention are as follows:

[0027] The foot measuring device provided by the present invention, by setting the base, the foot bearing plate and the foot length measuring component, since the transmitting module and the receiving module of the infrared sensor are arranged obliquely, when the foot moves downwards along with the foot bearing plate, the front end of the foot will first block the propagation of light between the transmitting module and the receiving module. By measuring the position of the foot bearing plate when the front end of the foot blocks the light, the length of the foot can be calculated. The foot measuring device of the present invention does not require manual participation, has high measurement accuracy and low instrument cost.

[0028] For the specific beneficial effects of the present invention, please refer to the specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described in detail below with reference to the drawings and specific implementation manners.

[0030] Figure 1 It is a schematic diagram of the foot measuring device provided in the first embodiment of the present invention;

[0031] Figure 2 It is a schematic diagram of the foot measuring device provided in the first embodiment of the present invention in another state;

[0032] Figure 3 It is a schematic diagram of the foot measuring device provided in the second embodiment of the present invention;

[0033] Figure 4 It is a schematic diagram of the foot measuring device provided in the third embodiment of the present invention;

[0034] Figure 5 is Figure 4 the partial enlarged view at position A in

[0035] Figure 6 a schematic diagram of the foot measuring device provided in the fourth embodiment of the present invention.

[0036] In the figure: 100 - base, 110 - sleeve, 120 - second spring, 130 - limit plate, 131 - first locking portion, 101 - reference plane, 200 - foot bearing plate, 201 - foot bearing surface, 210 - positioning plate, 220 - lifting rod, 230 - clamping plate, 231 - vertical section, 232 - guiding section, 240 - elastic member, 250 - second locking portion, 260 - driving member, 261 - first inclined surface, 270 - first elastic member, 280 - guiding plate, 310 - transmitting module, 320 - receiving module, 400 - fork. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making any creative efforts fall within the scope of the present invention.

[0038] Embodiment 1

[0039] This embodiment provides a foot measuring device. Referring to Figure 1 as shown, it includes a base 100, a foot bearing plate 200 and a foot length measuring assembly; wherein, the base 100 has a reference plane 101, the foot bearing plate 200 is disposed on the base 100 in a liftable manner, the foot bearing plate 200 has a foot bearing surface 201 parallel to the reference plane 101, a positioning plate 210 is disposed on the foot bearing surface 201, and the positioning plate 210 is configured such that when the foot is placed on the foot bearing surface 201 and the heel fits against the positioning plate 210, the front end of the foot extends beyond the foot bearing plate 200.

[0040] The foot length measuring assembly includes a first distance measuring module and an infrared sensor. The first distance measuring module is used to measure the distance H1 between the reference plane 101 and the foot bearing plate 200. The infrared sensor includes a transmitting module 310 and a receiving module 320. The transmitting module 310 is disposed on the reference plane 101, and the receiving module 320 is disposed on the base 100 and is located obliquely above the transmitting module 310. After the foot descends a certain distance along with the foot bearing plate 200, the propagation of light from the transmitting module 310 to the receiving module 320 can be blocked.

[0041] Briefly speaking, the measurement principle of the foot measuring device in this embodiment is: as Figure 1As shown, in the initial state, the foot does not block the propagation of light from the emission module 310 to the reception module 320. As Figure 2 shown, as the foot presses down on the foot bearing plate 200, the front end of the foot starts to block the light at a certain position.

[0042] From Figure 2 and the geometric relationship, the calculation formula for the length L of the measured foot is:

[0043] L = D1 + D2;

[0044] Among them, the calculation formula for D2 in the formula is:

[0045] D2 = H * cos(a);

[0046] Among them, the calculation formula for H in the formula is:

[0047] H = H1 + H2;

[0048] In summary, the calculation formula for the foot length L is:

[0049] L = D1 + (H1 + H2) * cos(a);

[0050] In this formula, D1 is the horizontal distance between the emission module 310 and the positioning plate 210, which is a design value of this foot measurement device; a is the angle between the light and the reference plane 101, which is also a design value of this foot measurement device; H2 is the thickness of the foot bearing plate 200, which is also a design value of this foot measurement device.

[0051] Therefore, by measuring the distance H1 between the foot bearing plate 200 and the reference plane 101, the foot length L can be calculated, and H1 can be measured by the above-mentioned distance measurement module.

[0052] In summary, the foot measurement device of this embodiment can calculate the length of the foot by measuring the distance between the foot bearing plate 200 and the reference plane 101 when the front end of the foot starts to block the light by the distance measurement module.

[0053] It should be noted that the specific method of the infrared sensor sending a signal to the control module and the control module controlling the distance measurement module to measure the distance after receiving the signal can refer to the prior art, and it will not be elaborated here. Among them, the distance measurement module is, for example, an existing ultrasonic distance meter.

[0054] In this embodiment, referring to Figure 1 and Figure 2As shown, a sleeve 110 is provided on a reference plane 101, and a lifting rod 220 is provided on the bottom surface of the foot bearing plate 200. The lifting rod 220 is slidably inserted into the sleeve 110. The foot measuring device further includes a second spring 120. The second spring 120 is sleeved on the sleeve 110 and abuts between the base 100 and the foot bearing plate 200.

[0055] Thus, when the foot presses down on the foot bearing plate 200, the foot bearing plate 200 will compress the second spring 120. When the foot leaves the foot bearing plate 200, the second spring 120 will exert an upward elastic thrust on the foot bearing plate 200 to reset the foot bearing plate 200 for the next detection.

[0056] The foot measuring device of this embodiment can conveniently measure the length of the foot. During the test, it only requires the foot to press down on the foot bearing plate 200, without the need for hand participation, and the operation is convenient. Moreover, it requires fewer infrared sensors, so it has a lower cost.

[0057] Embodiment 2

[0058] This embodiment provides a foot measuring device, which is substantially the same as the foot measuring device of Embodiment 1, except that: Refer to Figure 3 As shown, in this embodiment, two clamping plates 230 are provided on the foot bearing plate 200. The two clamping plates 230 are respectively slidably provided on the foot bearing plate 200; and elastic members 240 are respectively provided between the two clamping plates 230 and the foot bearing plate 200. Driven by the corresponding elastic members 240, the two clamping plates 230 can clamp the foot along the width direction of the foot; the foot measuring device further includes a second ranging module for measuring the distance between the two clamping plates 230.

[0059] Briefly speaking, the foot measuring device of this embodiment is based on the solution of Embodiment 1, and two clamping plates 230 located on both sides of the foot are provided on the foot bearing plate 200. During the process of placing the foot on the foot bearing plate 200, both sides of the foot can push the clamping plates 230 outwards, and the two clamping plates 230 can abut against both sides of the foot under the drive of the corresponding elastic members 240; therefore, the distance between the two clamping plates 230 is the width of the foot. By measuring the distance between the two clamping plates 230 with the second ranging module, the width of the foot can be measured.

[0060] Among them, the second ranging module can be, for example, an ultrasonic rangefinder, which can use existing products and will not be elaborated here.

[0061] This embodiment also provides a preferred clamping plate 230. Specifically, refer to Figure 3As shown in the figure, the splint 230 of this embodiment includes a vertical section 231 and a guiding section 232 that extends obliquely upward and outward. After the foot is placed on the foot bearing plate 200, specifically, it is located between the two vertical sections 231. By providing the above-mentioned guiding section 232, it is convenient for the foot to be inserted between the two splints 230.

[0062] Embodiment III

[0063] This embodiment provides a foot measuring device, which is substantially the same as the foot measuring device provided in Embodiment II. The difference is that: in this embodiment, with reference to Figure 4 and Figure 5 As shown in the figure, a limiting plate 130 is provided on the base 100, and a first locking portion 131 is provided on the limiting plate 130. A second locking portion 250 is movably provided on the foot bearing plate 200; when the second locking portion 250 is combined with the first locking portion 131, the lifting of the foot bearing plate 200 relative to the base 100 can be locked; a driving member 260 is provided on the foot bearing plate 200, the driving member 260 is connected to the second locking portion 250, and the driving member 260 can receive the downward pressure of the foot and drive the second locking portion 250 to separate the second locking portion 250 from the first locking portion 131.

[0064] Briefly speaking, compared with the foot measuring device in Embodiment II, the foot measuring device in this embodiment adds a limiting plate 130 on the base 100, a first locking portion 131 is provided on the limiting plate 130, a second locking portion 250 is provided on the foot bearing plate 200, and the foot bearing plate 200 can be fixed relative to the limiting plate 130, that is, the base 100, through the combination of the first locking portion 131 and the second locking portion 250. When the first locking portion 131 and the second locking portion 250 are separated, the foot bearing plate 200 can be lifted and lowered relative to the base 100 again.

[0065] When the above structure is not provided, the insertion of the foot between the two splints 230 will drive the foot bearing plate 200 to descend. If the foot has not fully contacted the foot bearing plate 200 when it reaches the position where it blocks the light, it will affect the accuracy of the measurement result.

[0066] In the foot measuring device of this embodiment, during the process of the foot being inserted between the two splints 230, the combination of the first locking portion 131 and the second locking portion 250 can prevent the foot bearing plate 200 from moving downward, so that the foot bearing plate 200 can be conveniently inserted between the two splints 230; and during the process of the foot being inserted between the two splints 230, the driving member 260 can be pressed downward, and the driving member 260 will also drive the second locking portion 250 to act, separating the first locking portion 131 from the second locking portion 250, and the foot bearing plate 200 can move downward again to measure the length of the foot.

[0067] In this embodiment, reference Figure 5 As shown, the first locking portion 131 includes an insertion hole provided on the limit plate 130, and the second locking portion 250 includes an insertion block slidably provided on the foot bearing plate 200; a first elastic member 270 is provided between the insertion block and the foot bearing plate 200, and the first elastic member 270 applies an elastic thrust to the insertion block, so that the insertion block slides in the direction of inserting into the insertion hole; a first inclined wedge surface is provided on the insertion block, and a second inclined wedge surface is provided on the driving member 260 to abut against the first inclined wedge surface. When the driving member 260 descends, it pushes the insertion block to slide in the direction of compressing the first elastic member 270.

[0068] Specifically, the driver 260 is slidably mounted on the foot support plate 200. Initially, the driver 260 protrudes upward from the foot support plate 200. The insertion block is inserted into the insertion hole under the push of the first elastic member 270. At this point, the foot support plate 200 is fixed relative to the stop plate 130, i.e., the base 100. When the foot is inserted into the two clamping plates 230, the driver 260 is pressed downward, pushing the insertion block against the first elastic member 270 until the foot contacts the bottom surface of the support plate. At this point, the driver 260 forces the insertion block out of the insertion hole, allowing the foot support plate 200 to move downward.

[0069] Example 4

[0070] This embodiment provides a foot measurement device, which is substantially the same as the foot measurement device provided in the second embodiment, except that: in this embodiment, reference is made to Figure 6 As shown, two guide plates 280 are provided on the foot supporting plate 200, and the two guide plates 280 are respectively provided on the outer sides of the two clamping plates 230; the two guide plates 280 are respectively provided with guide holes, and the corresponding clamping plates 230 are provided with guide rods, which can be guided and slidably inserted into the guide holes; the elastic member 240 is a first spring, which is sleeved on the guide rod and abuts between the clamping plate 230 and the corresponding guide plate 280.

[0071] The foot measuring device of this embodiment also includes two forks 400 corresponding to the two splints 230; one end of the fork 400 is sleeved on the corresponding guide rod and abuts between the first spring and the splint 230; and the fork 400 is driven and connected to the driving member 260; when the driving member 260 receives pressure from the foot, it can push the fork 400, causing the first end to compress the first spring.

[0072] Briefly speaking, compared with the foot measuring device of the second embodiment, the foot measuring device of this embodiment is provided with two fork levers 400, and the two fork levers 400 are drivingly connected to the driving member 260; when the driving member 260 moves downward, it can push the fork lever 400, and the fork lever 400 pushes the elastic member 240, so that the elastic member 240 is separated from the clamping plate 230.

[0073] When the above fork levers 400 are not provided, when measuring the foot width with the two clamping plates 230, the two clamping plates 230 will exert a certain pressure on the foot, and the width of the foot measured by the two clamping plates 230 is not the width of the foot in the natural state.

[0074] In this embodiment, by providing the above fork levers 400, when the foot is inserted into the two clamping plates 230, the driving member 260 drives the fork levers 400, and the fork levers 400 push aside the elastic member 240, avoiding the elastic member 240 exerting a thrust on the clamping plate 230, reducing the extrusion on the foot, and thus making the measurement of the foot width closer to the width of the foot in the natural state, that is, making the measurement result more accurate.

[0075] In this embodiment, referring to Figure 6 As shown, a first inclined surface 261 is provided on the driving member 260, and the first inclined surface 261 extends obliquely outward in the upward direction. The fork lever 400 abuts against the first inclined surface 261. Thus, when the driving member 260 moves downward, it can push the fork lever 400 to move outward.

[0076] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A foot measurement device, characterized in that, Comprising: A base (100) having a reference plane (101); A foot bearing plate (200) is provided on the base (100) in a liftable manner. The foot bearing plate (200) has a foot bearing surface (201) parallel to the reference plane (101). A positioning plate (210) is provided on the foot bearing surface (201), and the positioning plate (210) is configured such that when the foot is placed on the foot bearing surface (201) and the heel is in contact with the positioning plate (210), the front end of the foot extends beyond the foot bearing plate (200); A foot length measuring assembly, comprising a first distance measuring module and an infrared sensor. The first distance measuring module is used to measure the distance between the reference plane (101) and the foot bearing plate (200). The infrared sensor comprises a transmitting module (310) and a receiving module (320). The transmitting module (310) is provided on the reference plane (101), and the receiving module (320) is provided on the base (100) and is located obliquely above the transmitting module (310); After the foot descends a certain distance along with the foot bearing plate (200), it can block the propagation of light from the transmitting module (310) to the receiving module (320).

2. The foot measurement device according to claim 1, characterized in that, It further comprises a foot width measuring assembly. The foot width measuring assembly comprises two clamping plates (230) provided on the foot bearing plate (200). The two clamping plates (230) are respectively slidably provided on the foot bearing plate (200); and elastic members (240) are respectively provided between the two clamping plates (230) and the foot bearing plate (200). Driven by the corresponding elastic members (240), the two clamping plates (230) can clamp the foot along the width direction of the foot; The foot measuring device further comprises a second distance measuring module, and the second distance measuring module is used to measure the distance between the two clamping plates (230).

3. The foot measurement device according to claim 2, wherein A limiting plate (130) is provided on the base (100), and a first locking portion (131) is provided on the limiting plate (130). A second locking portion (250) is movably provided on the foot bearing plate (200); when the second locking portion (250) is combined with the first locking portion (131), the lifting of the foot bearing plate (200) relative to the base (100) can be locked; A driving member (260) is provided on the foot bearing plate (200). The driving member (260) is drivingly connected to the second locking portion (250), and the driving member (260) can receive the downward pressure of the foot and drive the second locking portion (250) to disengage the second locking portion (250) from the first locking portion (131).

4. The foot measuring device according to claim 3, wherein The first locking portion (131) comprises an insertion hole provided on the limiting plate (130), and the second locking portion (250) comprises an insertion block slidably provided on the foot bearing plate (200); A first elastic member (270) is provided between the insertion block and the foot bearing plate (200). The first elastic member (270) applies an elastic thrust to the insertion block to slide the insertion block in the direction of inserting into the insertion hole; The plug-in block is provided with a first inclined wedge surface, and the driving member (260) is provided with a second inclined wedge surface that abuts against the first inclined wedge surface. When the driving member (260) descends, it pushes the plug-in block to slide in the direction of compressing the first elastic member (270).

5. The foot measuring device according to claim 3, characterized in that Two guide plates (280) are provided on the foot bearing plate (200), and the two guide plates (280) are respectively arranged outside the two clamping plates (230); guide holes are respectively provided on the two guide plates (280), and guide rods are provided on the corresponding clamping plates (230), and the guide rods are slidably inserted into the guide holes; The elastic member (240) is a first spring, and the first spring is sleeved on the guide rod and abuts between the clamping plate (230) and the corresponding guide plate (280).

6. The foot measuring device according to claim 5, wherein It further includes two fork-shaped members (400) corresponding to the two clamping plates (230); the first end of the fork-shaped member (400) is sleeved on the corresponding guide rod and abuts between the first spring and the clamping plate (230); and the fork-shaped member (400) is drivingly connected to the driving member (260); When the driving member (260) receives the downward pressure of the foot, it can push the fork-shaped member (400) to compress the first spring at the first end.

7. The foot measurement device according to claim 6, wherein, The driving member (260) is provided with a first inclined surface (261), and in the direction from bottom to top, the first inclined surface (261) extends obliquely outward; the fork-shaped member (400) abuts against the first inclined surface (261).

8. The foot measurement device according to any one of claims 1 to 7, characterized in that, A sleeve (110) is fixedly provided on the reference surface (101), and a lifting rod (220) is provided on the bottom surface of the foot bearing plate (200), and the lifting rod (220) is slidably inserted into the sleeve (110); The foot measuring device further includes a second spring (120), and the second spring (120) is sleeved on the sleeve (110) and abuts between the base (100) and the foot bearing plate (200).

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