Digital display type body forward flexion testing device

Abstract

The utility model discloses a digital display type body forward flexion testing device which comprises a support plate, a guide rail assembly installed on the support plate and a digital display range finder installed on the guide rail assembly in a sliding fit mode. The digital display range finder comprises a distance detection element used for detecting the sliding distance of the digital display range finder on the guide rail assembly and a display screen used for displaying measurement information. The front end of the guide rail assembly is provided with a front end plate. The digital display range finder further comprises a reset triggering element used for being matched with the front end plate. According to the embodiment of the utility model, through cooperation between the reset trigger element and the front end plate, when a user pushes the carriage and the digital display range finder to the front end of the guide rail assembly, automatic reset and zero clearing can be realized, the user does not need to frequently press a power switch, and each test operation is relatively convenient; operation such as disassembly, assembly, height adjustment and the like between the support plate and the guide rail assembly is relatively more convenient, and a relatively time-consuming bolt fastening mode does not need to be adopted.

Description

Technical Field

[0001] The utility model relates to the technical field of forward flexion testing equipment, in particular to a digital display forward flexion testing device. Background Art

[0002] Reach is an important method to test body flexibility. It can reflect the individual's ability to expand the range of joint movement and is a good assessment of ligament, tendon and muscle extensibility. Sit and Reach is a physical fitness test item for primary, secondary and high schools. Its purpose is to measure the range of motion that can be achieved by the trunk, waist, hip and other joints in a static state. It mainly reflects the extensibility and elasticity of the joints, ligaments and muscles in these parts and the development level of body flexibility.

[0003] In order to complete this test, special testing instruments are usually required to assist in the test. For example, a Chinese utility model patent (authorization announcement number: CN216259029U, authorization announcement date: 2022.04.12) discloses a portable intelligent forward flexion tester. The above scheme uses electronic components to realize the reading, counting and storage of measurement values, which can effectively improve the test efficiency of the tester and reduce the workload of invigilators. By setting the electronic components for measurement on the tester body and designing the tester body structure into a foldable form, the volume of the tester is reduced and the equipment is simplified, thereby improving the portability of the tester and solving the problem of difficulty in carrying and storing the equipment.

[0004] During the test process, after each test is completed and the tester is moved to the initial position, the user is often required to press the power switch of the tester twice (turn off and restart) to complete the reset operation, and the convenience of operation needs to be improved; in addition, the guide rails and the vertical plates are installed with bolts, and the bolts need to be turned back and forth during assembly, disassembly and height adjustment, which is still not convenient enough. Summary of the invention

[0005] The purpose of the utility model is to provide a digital display forward flexion testing device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A digital forward flexion testing device comprises a support plate, a guide rail assembly mounted on the support plate, and a digital rangefinder slidably mounted on the guide rail assembly, wherein the digital rangefinder comprises a distance detection element for detecting the sliding distance of the digital rangefinder on the guide rail assembly and a display screen for displaying measurement information, wherein the front end of the guide rail assembly has a front end plate; the digital rangefinder also comprises a reset trigger element for cooperating with the front end plate.

[0008] Preferably, the digital rangefinder is inserted into a slide, the slide is slidably mounted on the guide rail assembly, a push plate for being pushed by a palm is integrally provided at the front end of the slide, and a push plate through-hole corresponding to the reset trigger element is provided on the push plate.

[0009] Preferably, the digital display rangefinder further comprises a casing, a circuit board installed in the casing and a battery for power supply, and the circuit board is electrically connected to the display screen, the distance detection element and the reset trigger element respectively.

[0010] Preferably, the reset trigger element is a trigger switch, and a convex portion for pressing the trigger switch is provided on the side wall of the front end plate.

[0011] Preferably, the distance detection element adopts a through-beam photoelectric sensor, a grating plate is installed on the guide rail assembly, and a plurality of grating holes are distributed on the grating plate from front to back. The through-beam photoelectric sensor is installed at the lower end of the casing, and the light emitter and light receiver of the through-beam photoelectric sensor are distributed on both sides of the grating plate.

[0012] Preferably, the distance detection element and the reset trigger element are both photoelectric distance measuring sensors or ultrasonic distance measuring sensors.

[0013] Preferably, it also includes a support rod frame, the support plate is provided with a rod insertion cavity for slidingly inserting and cooperating with the support rod frame, and a plurality of limit holes are distributed on the side wall of the support plate corresponding to the rod insertion cavity; a spring pin for cooperating with the limit hole is installed at the lower end of the support rod frame, and a base bar is detachably installed at the upper end of the support rod frame, and the base bar is fixedly connected to the guide rail assembly.

[0014] Preferably, the guide rail assembly includes two guide rails butted in sequence, and the base bar is fixedly connected to the two guide rails at the same time by screws; the upper end surface of the guide bar is provided with an embedded strip groove, and two grating plates are provided, which are respectively embedded in the corresponding embedded strip grooves; the front end plate is butt-jointed and fixed to the front end of the front guide bar, and the rear end of the rear guide bar is also butt-jointed and fixed to the rear end plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The embodiment of the utility model realizes automatic reset and zeroing through the cooperation between the reset trigger element and the front end plate when the user pushes the slide and the digital display rangefinder to the front end of the guide rail assembly. The user does not need to press the "power switch" frequently, and each test operation is relatively more convenient;

[0017] 2. The support rod frame can be limited to the corresponding height position by cooperating with the corresponding limit holes on the support plate through the spring pin. When adjusting, it is only necessary to overcome the elastic force of the spring pin, push and pull the support rod frame, and make the spring pin cooperate with the limit holes at other positions to achieve the height adjustment of the guide rail assembly. No bolts are required for fastening, and the height adjustment is convenient. At the same time, the disassembly and assembly between the support plate and the guide rail assembly are also relatively more convenient, and there is no need to adopt the relatively time-consuming bolt fastening method. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a digital display forward flexion testing device;

[0019] Figure 2 It is a front view structural schematic diagram of a digital display forward flexion testing device;

[0020] Figure 3 A digital display forward flexion test device Figure 2 Schematic diagram of the structure of the AA section;

[0021] Figure 4 A digital display forward flexion test device Figure 3 A schematic diagram of the partial structure of the front end of the middle guide rail assembly;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of a digital display forward flexion test device from another perspective;

[0023] Figure 6 It is a schematic diagram of the front three-dimensional structure of a digital display forward flexion test device after the front end plate is unfolded;

[0024] Figure 7 It is a schematic diagram of the front three-dimensional structure of a digital display forward flexion test device after the front end plate and the housing are unfolded;

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of a digital display forward flexion test device after the front end plate and the casing are unfolded from another perspective;

[0026] Fig. 9 It is a schematic diagram of the cross-sectional structure of a digital display rangefinder in Example 2 of a digital display forward flexion testing device.

[0027] In the figure: 1-support plate, 11-limiting hole, 2-support rod frame, 21-base bar, 22-spring pin, 3-through-beam photoelectric sensor, 4-guide rail assembly, 41-guide rail, 42-grating plate, 43-rear end plate, 44-front end plate, 441-convex part, 5-digital display rangefinder, 51-casing, 52-display screen, 53-power switch, 54-trigger switch, 55-circuit board, 56-battery, 57-photoelectric distance sensor, 6-slide, 61-push plate, 62-push plate perforation. Implementation

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0029] See also Figures 1 to 8 A digital forward flexion testing device comprises a support plate 1, a guide rail assembly 4 mounted on the support plate 1, and a digital rangefinder 5 slidably mounted on the guide rail assembly 4. The digital rangefinder 5 comprises a distance detection element for detecting its own sliding distance on the guide rail assembly 4 and a display screen 52 for displaying measurement information. The front end of the guide rail assembly 4 has a front end plate 44; the digital rangefinder 5 also comprises a reset trigger element for cooperating with the front end plate 44.

[0030] The digital rangefinder 5 is inserted into a slide 6, which is slidably mounted on the guide rail assembly 4. A push plate 61 for being pushed by a palm is integrally provided at the front end of the slide 6, and a push plate through hole 62 corresponding to the reset trigger element is provided on the push plate 61.

[0031] As a specific solution, the digital display rangefinder 5 also includes a housing 51, a circuit board 55 installed in the housing 51, and a battery 56 for power supply. The circuit board 55 is electrically connected to the display screen 52, the distance detection element, and the reset trigger element respectively. A power switch 53 is also installed on the housing 51. The power switch 53 is electrically connected to the circuit board 55 and is used to turn on or off the digital display rangefinder 5.

[0032] In this embodiment, the reset trigger element is a trigger switch 54 , and a convex portion 441 for pressing the trigger switch 54 is provided on the side wall of the front end plate 44 .

[0033] The working principle of the utility model is as follows: when in use, the digital display rangefinder 5 is turned on, and the slide 6 is manually pushed to the front end of the guide rail assembly 4. At this time, the protrusion 441 on the side wall of the front end plate 44 can press the trigger switch 54. After the circuit board 55 receives the signal from the trigger switch 54, it is reset and cleared to control the value displayed on the display screen 52 to be "0". Then, the user places both feet against the support plate 1 and performs forward flexion movement, and pushes the push plate 61 with the front end of the palm, so that the slide 6 and the digital display rangefinder 5 move. During the movement, the digital display rangefinder 5 detects its own sliding distance through the distance detection element, and displays the sliding data on the display screen 52.

[0034] The embodiment of the utility model realizes automatic reset and zeroing through the cooperation between the reset trigger element and the front end plate 44 when the user pushes the slide 6 and the digital rangefinder 5 to the front end of the guide rail assembly 4. The user does not need to press the "power switch 53" frequently, and each test operation is relatively more convenient.

[0035] As a further specific solution, the distance detection element adopts a through-beam photoelectric sensor 3, a grating plate 42 is installed on the guide rail assembly 4, and a plurality of grating holes are distributed on the grating plate 42 from front to back, the through-beam photoelectric sensor 3 is installed at the lower end of the housing 51, and the light emitter and the light receiver of the through-beam photoelectric sensor 3 are distributed on both sides of the grating plate 42. The distance between adjacent grating holes is a constant value, and during the body flexion test, the current sliding distance of the digital display rangefinder 5 can be calculated by the number of grating holes detected by the through-beam photoelectric sensor 3.

[0036] In order to facilitate the disassembly and assembly of the support plate 1 and the guide rail assembly 4, the present embodiment also includes a support rod frame 2, the support plate 1 is provided with a rod insertion cavity for slidingly inserting and cooperating with the support rod frame 2, and a plurality of limiting holes 11 are distributed on the side wall of the support plate 1 corresponding to the rod insertion cavity; a spring pin 22 for cooperating with the limiting hole 11 is installed at the lower end of the support rod frame 2, and a base bar 21 is detachably installed at the upper end of the support rod frame 2, and the base bar 21 is fixedly connected to the guide rail assembly 4.

[0037] The support rod frame 2 can cooperate with the corresponding limiting hole 11 through the spring pin 22 to limit the support rod frame 2 at the corresponding height position. When adjusting, it is only necessary to overcome the elastic force of the spring pin 22, push and pull the support rod frame 2, and make the spring pin 22 cooperate with the limiting hole 11 at other positions. The height adjustment of the guide rail assembly 4 can be achieved without the need for bolts to tighten, and the height adjustment is convenient.

[0038] Among them, in order to prevent the guide rail assembly 4 from occupying a long space during logistics transportation, the guide rail assembly 4 includes two guide rails 41 connected in sequence, and the base bar 21 is fixedly connected to the two guide rails 41 at the same time by screws; during transportation, the two split guide rails 41 occupy a relatively small length space, which is convenient for transportation and storage, and when in use, it is also convenient to assemble them into the guide rail assembly 4.

[0039] The upper end surface of the guide rail 41 is provided with an embedded groove, and two grating plates 42 are provided, which are respectively embedded in the corresponding embedded grooves; the front end plate 44 is fixed to the front end of the front guide rail 41, and the rear end of the rear guide rail 41 is also fixed to the rear end plate 43.

[0040] The front and rear directions of the grating plate 42 can be limited by the front end plate 44 and the rear end plate 43 . Example

[0041] See also Fig. 9 , a digital display forward flexion test device, wherein the distance detection element and the reset trigger element are both photoelectric distance measuring sensors 57 or ultrasonic distance measuring sensors. Obviously, the front end plate 44 can be specifically a photoelectric reflector plate or an ultrasonic reflector plate, and the photoelectric distance measuring sensor 57 or the ultrasonic distance measuring sensor is used to detect the distance between itself and the front end plate 44.

[0042] Taking the photoelectric distance sensor 57 as an example, the working principle of this embodiment is: at the front end position of the guide rail assembly 4, the distance between the photoelectric distance sensor 57 and the front end plate 44 is the set minimum value A, and the digital rangefinder 5 is in the initial reset state at this time. After the digital rangefinder 5 is turned on, the value displayed on the display screen 52 is "0"; then, the user performs a forward flexion test, pushes the slide 6 and the digital rangefinder 5 to slide, and the photoelectric distance sensor 57 detects the distance between itself and the front end plate 44 in real time, such as: the photoelectric distance sensor 57 detects that the distance between itself and the front end plate 44 is A+B, B is the distance currently moved by the digital rangefinder 5, that is, the pushing distance of the "forward flexion operation", and the value displayed on the display screen 52 is "B".

[0043] In this embodiment, the distance between itself and the front end plate 44 is directly detected by a distance sensor (photoelectric distance sensor 57 or ultrasonic distance sensor). The distance sensor can simultaneously function as a distance detection element and a reset trigger element, without the need to add an additional trigger switch 54.

[0044] The disadvantage of this embodiment is that when there is an object (such as a sleeve) blocking the distance measuring sensor and the front end plate 44, the corresponding sliding distance may not be accurately measured; after the object (such as a sleeve) is moved away, the corresponding sliding distance can be measured.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A digital display forward flexion test device, comprising a support plate (1), a guide rail assembly (4) mounted on the support plate (1), and a digital display distance meter (5) slidably mounted on the guide rail assembly (4), the digital display distance meter (5) comprising a distance detection element for detecting the sliding distance of the digital display distance meter on the guide rail assembly (4) and a display screen (52) for displaying measurement information, characterized in that: The front end of the guide rail assembly (4) has a front end plate (44); The digital display distance meter (5) further comprises a reset trigger element for cooperating with the front end plate (44); The digital display distance meter (5) is inserted into a slide (6), and the slide (6) is slidably mounted on the guide rail assembly (4). A push plate (61) for being pushed by a palm is integrally provided at the front end of the slide (6), and a push plate through hole (62) for corresponding to a reset trigger element is provided on the push plate (61).

2. A digital display forward flexion testing device according to claim 1, characterized in that: The digital display distance meter (5) also includes a housing (51), a circuit board (55) installed in the housing (51), and a storage battery (56) for power supply. The circuit board (55) is electrically connected to the display screen (52), the distance detection element, and the reset trigger element respectively.

3. A digital display forward flexion testing device according to claim 2, characterized in that: The reset trigger element adopts a trigger switch (54), and a convex portion (441) for pressing the trigger switch (54) is provided on the side wall of the front end plate (44).

4. A digital display forward flexion testing device according to claim 3, characterized in that: The distance detection element adopts a through-beam photoelectric sensor (3); a grating plate (42) is installed on the guide rail assembly (4); a plurality of grating holes are distributed on the grating plate (42) from front to back; the through-beam photoelectric sensor (3) is installed at the lower end of the housing (51); and a light emitter and a light receiver of the through-beam photoelectric sensor (3) are distributed on both sides of the grating plate (42).

5. A digital display forward flexion testing device according to claim 2, characterized in that: The distance detection element and the reset trigger element are both photoelectric distance measuring sensors (57) or ultrasonic distance measuring sensors.

6. A digital display forward flexion testing device according to claim 4, characterized in that: It also comprises a support rod frame (2), the support plate (1) is provided with a rod insertion cavity for slidingly inserting and cooperating with the support rod frame (2), and a plurality of limiting holes (11) are distributed and arranged on the side wall of the support plate (1) corresponding to the rod insertion cavity; A spring pin (22) for cooperating with the limiting hole (11) is installed at the lower end of the support rod frame (2), and a base bar (21) is detachably installed at the upper end of the support rod frame (2), and the base bar (21) is fixedly connected to the guide rail assembly (4).

7. A digital display forward flexion testing device according to claim 6, characterized in that: The guide rail assembly (4) comprises two guide rail bars (41) connected in sequence, and the base bar (21) is fixedly connected to the two guide rail bars (41) by screws at the same time; The upper end surface of the guide rail (41) is provided with an embedded strip groove, and two grating plates (42) are provided, which are respectively embedded in the corresponding embedded strip grooves; The front end plate (44) is fixedly connected to the front end of the front guide rail (41), and the rear end of the rear guide rail (41) is also fixedly connected to the rear end plate (43).

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