A visual fatigue detector

Abstract

The present invention provides a visual fatigue detector, which relates to the technical field of visual fatigue detectors, and includes: a visual fatigue detector, a safety part, an auxiliary part, and a carrying part; the front end of the visual fatigue detector is provided with a display screen. Because an elastic telescopic rod is installed on the bottom end face of the inner wall of the base body, the lower end of the elastic telescopic rod is elastically engaged with the first anti-slip groove. During use, the gear lock can be achieved by the elastic engagement of the elastic telescopic rod with the first anti-slip groove. When the gear inside the color knob is loosened, the gear limit can be achieved by the elastic engagement of the elastic telescopic rod with the first anti-slip groove, which solves the problem of low safety, the visual fatigue detector being easily opened by non-staff and being easily damaged when non-staff open it at will and make wrong operations; the color working condition needs to be adjusted during the detection process, and the color working condition knob is easy to loosen after a period of use, which affects the detection.

Description

Technical Field

[0001] The present invention relates to the technical field of visual fatigue detectors, and in particular to a visual fatigue detector. Background Art

[0002] Fatigue refers to the physiological and psychological disorders caused by continuous physical and mental labor. When a person is tired, his reaction will become slow and his ability to control his body will be reduced. Eye fatigue may cause eye damage. At this time, an eye fatigue detector is needed for detection.

[0003] As for the currently available visual fatigue detectors:

[0004] The safety is low, and non-staff can easily turn on the visual fatigue detector at will. When non-staff turn it on at will and make incorrect operations, it is easy to cause damage to the visual fatigue detector; the color condition needs to be adjusted during the detection process, and the color condition knob is easy to loosen after using it for a period of time, which affects the detection. Summary of the Invention

[0005] In view of this, the present invention provides a visual fatigue detector, which has a safety part and an auxiliary part. Through the setting of the safety part and the auxiliary part, it can prevent non-staff from opening it at will, causing damage to the equipment, and can realize auxiliary positioning of the color working condition gear after the color working condition knob is damaged.

[0006] The purpose and effect of the visual fatigue detector of the present invention are achieved by the following specific technical means:

[0007] The present invention provides a visual fatigue detector, which specifically includes: a visual fatigue detector, a safety part, an auxiliary part and a carrying part; the front end surface of the visual fatigue detector is provided with a display screen, and the right end surface of the visual fatigue detector is provided with a frequency knob and a color knob; the safety part is composed of a sliding seat, a protective cover, an extrusion protrusion, a second anti-slip groove and a marking protrusion, and the sliding seat is welded to the front end surface of the visual fatigue detector; the front end surface of the visual fatigue detector is provided with a start button, and a contact button is provided above the start button, the start button and the contact button are connected in series, and the contact button is an extrusion contact switch; the sliding seat is provided with a protective cover, an extrusion protrusion, a second anti-slip groove and a marking protrusion, and the sliding seat is welded to the front end surface of the visual fatigue detector; the front end surface of the visual fatigue detector is provided with a start button, and a contact button is provided above the start button, the start button and the contact button are connected in series, and the contact button is an extrusion contact switch; A protective cover is slidably connected to the seat, and an extrusion protrusion is welded to the rear end face of the protective cover. When the extrusion protrusion contacts the contact button, the contact button is in an on state; when the protective cover slides upward to the uppermost position, the start button is exposed, and the extrusion protrusion is not in contact with the contact button, and is in a non-starting state; the auxiliary part is composed of a seat body and an elastic telescopic rod, and the seat body is welded to the right end face of the visual fatigue detector; the carrying part is composed of a connecting block, a sliding arm, a coil spring and an elastic part, and there are two connecting blocks in total, which are respectively welded to the left end face and the right end face of the visual fatigue detector.

[0008] Furthermore, the front end surface of the protective cover is provided with a second anti-slip groove in a linear array, and the second anti-slip groove is a semi-cylindrical groove structure;

[0009] A marking protrusion is provided on the front end surface of the sliding seat. The marking protrusion is a hemispherical structure. When the second anti-slip groove at the top is aligned with the marking protrusion, the extrusion protrusion is in contact with the contact button. At this time, the contact button is in the connected state. At this time, the distance between the protective cover and the top is 1 cm. At this time, pressing the start button can start the visual fatigue detector. At this time, the start button is also exposed.

[0010] Furthermore, the base is an L-shaped structure, the left end surface of the base is in elastic contact with the color knob, and the base is tightly pressed against the color knob.

[0011] Furthermore, twelve first anti-slip grooves are provided in a circular array on the outer wall of the color knob. The first anti-slip grooves are semi-cylindrical groove-shaped structures. The color knob is provided with twelve color gears in total. The first anti-slip grooves are aligned with the color gears of the color knob.

[0012] An elastic telescopic rod is installed on the bottom end surface of the inner wall of the base body, and one lower end of the elastic telescopic rod is elastically engaged with the first anti-slip groove.

[0013] Furthermore, two sliding arms are slidably connected to the two connecting blocks, and a stopper is provided at the bottom of the two sliding arms. The two sliding arms together constitute the carrying structure of the visual fatigue detector.

[0014] Furthermore, each of the sliding arms is sleeved with two coil springs, the lower ends of the four coil springs are in contact with the stop heads of the two sliding arms respectively, and the upper ends of the four coil springs are in contact with the bottom end surfaces of the two connecting blocks respectively. When the stop heads of the sliding arms are in contact with the ground, the distance between the visual fatigue detector and the ground is 3 cm.

[0015] Furthermore, an elastic member is adhered to the outer side of each connecting block, and the elastic member is made of rubber. The two elastic members together constitute the collision protection structure of the visual fatigue detector.

[0016] Furthermore, the two elastic members are both concave structures, and the inner walls of the two elastic members are respectively adhered and connected to the top end surface and the bottom end surface of the connecting block.

[0017] Furthermore, the outer wall of the frequency knob is in elastic contact with the top surface of an elastic member on the right side, and the elastic member on the right side is a tightening structure of the frequency knob.

[0018] Beneficial effects

[0019] The present application is provided with a safety part. A start button is provided on the front end face of the visual fatigue detector, and a contact button is provided above the start button. The start button and the contact button are connected in series, and the contact button is an extrusion contact switch. A protective cover is slidably connected to the sliding seat, and an extrusion protrusion is welded on the rear end face of the protective cover. When the extrusion protrusion contacts the contact button, the contact button is in an on state. At this time, pressing the start button can start the visual fatigue detector, which increases the difficulty of starting. The difficulty of starting for non-staff increases, and the visual fatigue detector is protected. When the protective cover slides upward to the uppermost position, the start button is exposed, and the extrusion protrusion is not in contact with the contact button. At this time, it is in a non-starting state, which further increases the difficulty of starting for non-staff. In addition, because the front end face of the protective cover is opened in a linear array There is a second anti-slip groove, which is a semi-cylindrical groove structure; a marking protrusion is provided on the front end face of the sliding seat, which is a hemispherical structure. When the top second anti-slip groove is aligned with the marking protrusion, the extrusion protrusion is in contact with the contact button. At this time, the contact button is in the on state. At this time, the protective cover is 1 cm away from the top. At this time, pressing the start button can start the visual fatigue detector. At this time, the start button is also exposed. Then it is difficult for non-staff to grasp the correct sliding position of the protective cover when starting, which avoids damage to the visual fatigue detector caused by non-staff startup. The second anti-slip groove can prevent the staff's hands from slipping between the protective cover and the staff's hands, and avoids the staff from turning on the visual fatigue detector, and then damaging the visual fatigue detector due to incorrect operation by non-staff.

[0020] In addition, through the setting of the auxiliary part, twelve first anti-slip grooves are opened in a circular array on the outer wall of the color knob, and the first anti-slip groove is a semi-cylindrical groove structure. The color knob is provided with a total of twelve color gears, and the first anti-slip groove is aligned with the color gear of the color knob; an elastic telescopic rod is installed on the bottom end surface of the inner wall of the base body, and the lower end of the elastic telescopic rod is elastically engaged with the first anti-slip groove. During use, the gear locking can be achieved by the elastic engagement of the elastic telescopic rod and the first anti-slip groove. When the gear inside the color knob is loosened, the gear limiting can be achieved by the elastic engagement of the elastic telescopic rod and the first anti-slip groove.

[0021] In addition, through the setting of the carrying part, on the one hand, since there are two sliding arms slidingly connected to the two connecting blocks, and a stopper is provided at the bottom of the two sliding arms, the two sliding arms together constitute the carrying structure of the visual fatigue detector. When carrying, the two sliding arms can be held for carrying, which is convenient and practical; on the other hand, since there are two coil springs sleeved on each sliding arm, the lower ends of the four coil springs are respectively in contact with the stoppers of the two sliding arms, and the upper ends of the four coil springs are respectively in contact with the bottom end surfaces of the two connecting blocks, when the stopper of the sliding arm is in contact with the ground, the distance between the visual fatigue detector and the ground is 3 cm, so the visual fatigue detector can be buffered by the action of the coil springs when it is placed;

[0022] In addition, by setting the elastic members, on the one hand, since an elastic member is adhered to the outer side of each connecting block, and the elastic member is made of rubber, the two elastic members together constitute the collision protection structure of the visual fatigue detector, and the elastic members can provide protection when the left and right sides of the visual fatigue detector collide with foreign objects; and because both elastic members are concave structures, the inner walls of the two elastic members are respectively adhered and connected to the top end surface and the bottom end surface of the connecting block, which can improve the stability of the adhesion between the elastic member and the connecting block.

[0023] On the other hand, since the outer wall of the frequency knob is in elastic contact with the top surface of the elastic member on the right side, the elastic member on the right side serves as a tightening structure for the frequency knob, which can reduce the probability of the frequency knob loosening during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0025] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0026] In the attached figure:

[0027] Figure 1 It is a schematic diagram of the axial viewing structure of the visual fatigue detector of the present invention.

[0028] Figure 2 This invention Figure 1 A schematic diagram of the enlarged structure.

[0029] Figure 3 It is a schematic diagram of the main structure of the visual fatigue detector of the present invention.

[0030] Figure 4 This invention Figure 3 Schematic diagram of the enlarged structure at point B.

[0031] Figure 5 It is a schematic diagram of the right view structure of the visual fatigue detector of the present invention.

[0032] Figure 6 It is a schematic diagram of the axial structure of the visual fatigue detector of the present invention after partial sectioning.

[0033] Figure 7 This invention Figure 6 Enlarged structural diagram at C.

[0034] Figure 8 This invention Figure 6 Schematic diagram of the axial structure in another direction.

[0035] Figure 9It is a schematic diagram of the axial structure of the safety part of the present invention after being cut open.

[0036] List of figure markers

[0037] 1. Visual fatigue detector; 101. Display screen; 102. Frequency knob; 103. Color knob; 104. Start button; 105. Contact button; 106. First anti-slip groove; 2. Safety part; 201. Sliding seat; 202. Protective cover; 203. Extrusion protrusion; 204. Second anti-slip groove; 205. Marking protrusion; 3. Auxiliary part; 301. Seat body; 302. Elastic telescopic rod; 4. Carrying part; 401. Connecting block; 402. Sliding arm; 403. Coil spring; 404. Elastic part. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples.

[0039] Example: Please refer to Figures 1 to 9 :

[0040] The present invention provides a visual fatigue detector, comprising: a visual fatigue detector 1, a safety part 2, an auxiliary part 3 and a carrying part 4;

[0041] The front end of the visual fatigue detector 1 is provided with a display screen 101, and the right end of the visual fatigue detector 1 is provided with a frequency knob 102 and a color knob 103;

[0042] The safety part 2 is composed of a sliding seat 201, a protective cover 202, an extrusion protrusion 203, a second anti-slip groove 204 and a marking protrusion 205. The sliding seat 201 is welded to the front end surface of the visual fatigue detector 1;

[0043] The auxiliary part 3 is composed of a base 301 and an elastic telescopic rod 302. The base 301 is welded to the right end surface of the visual fatigue detector 1.

[0044] The carrying part 4 is composed of a connecting block 401, a sliding arm 402, a coil spring 403 and an elastic member 404. There are two connecting blocks 401, which are respectively welded to the left and right end faces of the visual fatigue detector 1.

[0045] Among them, the front face of the visual fatigue detector 1 is provided with a start button 104, and a contact button 105 is provided above the start button 104. The start button 104 and the contact button 105 are connected in series, and the contact button 105 is a squeeze contact switch;

[0046] A protective cover 202 is slidably connected to the sliding seat 201, and an extrusion protrusion 203 is welded to the rear end face of the protective cover 202. When the extrusion protrusion 203 contacts the contact button 105, the contact button 105 is in an on state. At this time, pressing the start button 104 can start the visual fatigue detector 1, which increases the difficulty of starting. It increases the difficulty for non-staff to start, thereby protecting the visual fatigue detector 1.

[0047] Among them, when the protective cover 202 slides upward to the uppermost position, the start button 104 is exposed, and the extrusion protrusion 203 is not in contact with the contact button 105, and is in a non-start state, which further increases the difficulty of starting for non-staff.

[0048] The front end surface of the protective cover 202 is provided with a second anti-slip groove 204 in a linear array. The second anti-slip groove 204 is a semi-cylindrical groove structure.

[0049] The front end face of the sliding seat 201 is provided with a marking protrusion 205, which is a hemispherical structure. When the second anti-slip groove 204 at the top is aligned with the marking protrusion 205, the extrusion protrusion 203 is in contact with the contact button 105. At this time, the contact button 105 is in the on state. At this time, the protective cover 202 is 1 cm away from the top. At this time, pressing the start button 104 can start the visual fatigue detector 1. At this time, the start button 104 is also exposed. Then, it is difficult for non-staff to grasp the correct sliding position of the protective cover 202 when starting, which avoids damage to the visual fatigue detector 1 caused by non-staff starting, and the second anti-slip groove 204 can prevent the staff's hands from slipping with the protective cover 202.

[0050] The base 301 is an L-shaped structure, and the left end surface of the base 301 is in elastic contact with the color knob 103. The base 301 is pressed against the color knob 103, which can prevent the color knob 103 from rotating on its own during use.

[0051] Twelve first anti-slip grooves 106 are formed in a circular array on the outer wall of the color knob 103. The first anti-slip grooves 106 are semi-cylindrical groove-shaped structures. The color knob 103 is provided with twelve color gears in total. The first anti-slip grooves 106 are aligned with the color gears of the color knob 103.

[0052] An elastic telescopic rod 302 is installed on the bottom end surface of the inner wall of the base body 301, and the lower end of the elastic telescopic rod 302 is elastically engaged with the first anti-slip groove 106. During use, the gear locking can be achieved through the elastic engagement of the elastic telescopic rod 302 and the first anti-slip groove 106. When the gear inside the color knob 103 is loose, the gear limiting can be achieved through the elastic engagement of the elastic telescopic rod 302 and the first anti-slip groove 106.

[0053] Among them, two sliding arms 402 are slidably connected to the two connecting blocks 401, and a stopper is provided at the bottom of the two sliding arms 402. The two sliding arms 402 together constitute the carrying structure of the visual fatigue detector 1. When carrying it, the two sliding arms 402 can be held for carrying, which is convenient and practical.

[0054] Among them, two coil springs 403 are sleeved on each sliding arm 402, and the lower ends of the four coil springs 403 are in contact with the stop heads of the two sliding arms 402 respectively, and the upper ends of the four coil springs 403 are in contact with the bottom end surfaces of the two connecting blocks 401 respectively. When the stop heads of the sliding arms 402 are in contact with the ground, the distance between the visual fatigue detector 1 and the ground is 3 cm, so the visual fatigue detector 1 can be buffered by the action of the coil springs 403 when placed.

[0055] Among them, an elastic part 404 is adhered to the outside of each connecting block 401, and the elastic part 404 is made of rubber. The two elastic parts 404 together constitute the collision protection structure of the visual fatigue detector 1. When the left and right sides of the visual fatigue detector 1 collide with foreign objects, protection can be achieved through the elastic part 404.

[0056] The two elastic members 404 are both concave structures, and the inner walls of the two elastic members 404 are respectively adhered to the top surface and the bottom surface of the connecting block 401, thereby improving the stability of the adhesion between the elastic members 404 and the connecting block 401.

[0057] The outer wall of the frequency knob 102 is in elastic contact with the top surface of an elastic member 404 on the right side. The elastic member 404 on the right side is a tightening structure for the frequency knob 102 , which can reduce the probability of the frequency knob 102 loosening during use.

[0058] The specific usage and function of this embodiment are as follows:

[0059] When the eye fatigue detector 1 is in use, it is necessary to turn on the eye fatigue detector 1. At this time, the protective cover 202 needs to be slid upward. At this time, it is necessary to ensure that the second anti-slip groove 204 at the top is aligned with the marking protrusion 205, and then the start button 104 is pressed. At this time, because the front face of the eye fatigue detector 1 is provided with a start button 104, a contact button 105 is provided above the start button 104. The start button 104 and the contact button 105 are connected in series, and the contact button 105 is an extrusion contact switch; a protective cover 202 is slidably connected to the sliding seat 201, and an extrusion protrusion 203 is welded on the rear end face of the protective cover 202. When the extrusion protrusion 203 contacts the contact button 105, the contact button 105 is in a connected state. At this time, pressing the start button 104 can realize the start of the eye fatigue detector 1, which increases the difficulty of starting. The difficulty of starting is increased for non-staff members, which protects the eye fatigue detector 1; when the protective cover 202 slides upward to the top position, the start button 104 is exposed, and the extrusion protrusion 203 is in contact with the contact button When the second anti-skid groove 204 is aligned with the marking protrusion 205, the squeezing protrusion 203 and the contact button 105 are in contact. At this time, the contact button 105 is in the connected state. At this time, the protective cover 202 is slid to the top distance of 1 cm. At this time, pressing the start button 104 can realize the start of the visual fatigue detector 1. At this time, the start button 104 is also in the exposed state, so it is difficult for non-staff to grasp the correct sliding position of the protective cover 202 when starting, which avoids damage to the visual fatigue detector 1 caused by non-staff startup, and the second anti-skid groove 204 can prevent the staff's hand from slipping with the protective cover 202.

[0060] When adjusting the color knob 103, twelve first anti-skid grooves 106 are provided in a circular array on the outer wall of the color knob 103, and the first anti-skid grooves 106 are semi-cylindrical groove-shaped structures. The color knob 103 is provided with twelve color gears in total, and the first anti-skid grooves 106 are aligned with the color gears of the color knob 103; an elastic telescopic rod 302 is installed on the bottom end surface of the inner wall of the base body 301, and the lower end of the elastic telescopic rod 302 is elastically engaged with the first anti-skid groove 106. During use, the gear locking can be achieved by the elastic engagement of the elastic telescopic rod 302 and the first anti-skid groove 106. When the gear inside the color knob 103 is loosened, the gear limiting can be achieved by the elastic engagement of the elastic telescopic rod 302 and the first anti-skid groove 106;

[0061] When carrying and placing, because the two connecting blocks 401 are slidably connected to the two sliding arms 402, and the bottom of the two sliding arms 402 are provided with a stopper, the two sliding arms 402 together constitute the carrying structure of the visual fatigue detector 1, and the two sliding arms 402 can be held for carrying when carrying, which is convenient and practical; and because each sliding arm 402 is sleeved with two coil springs 403, the lower ends of the four coil springs 403 are respectively in contact with the stoppers of the two sliding arms 402, and the upper ends of the four coil springs 403 are respectively in contact with the bottom end surfaces of the two connecting blocks 401, when the stoppers of the sliding arms 402 are in contact with the ground, the distance between the visual fatigue detector 1 and the ground is 3 cm, so the visual fatigue detector 1 can be buffered by the action of the coil springs 403 when placed;

[0062] During use, since an elastic part 404 is adhered to the outside of each connecting block 401, and the elastic part 404 is made of rubber, the two elastic parts 404 together constitute the collision protection structure of the visual fatigue detector 1. When the left and right sides of the visual fatigue detector 1 collide with foreign objects, protection can be achieved through the elastic parts 404; and since the two elastic parts 404 are both concave structures, the inner walls of the two elastic parts 404 are respectively adhered to the top end surface and the bottom end surface of the connecting block 401, which can improve the stability of the adhesion between the elastic part 404 and the connecting block 401.

Claims

1. A visual fatigue detector, characterized in that: include: A visual fatigue detector (1), a safety part (2), an auxiliary part (3) and a carrying part (4); the front end of the visual fatigue detector (1) is provided with a display screen (101), and the right end of the visual fatigue detector (1) is provided with a frequency knob (102) and a color knob (103); the safety part (2) is composed of a sliding seat (201), a protective cover (202), an extrusion protrusion (203), a second anti-slip groove (204) and a marking protrusion (205), and the sliding seat (201) is welded to the front end of the visual fatigue detector (1); the front end of the visual fatigue detector (1) is provided with a start button (104), and a contact button (105) is provided above the start button (104), the start button (104) and the contact button (105) are connected in series, and the contact button (105) is a squeeze contact switch; the sliding seat (201) is slidably connected with a protective cover (202), the rear end face of the protective cover (202) is welded with an extrusion protrusion (203), and when the extrusion protrusion (203) contacts the contact button (105), the contact button (105) is in a connected state; when the protective cover (202) slides upward to the uppermost position, the start button (104) is exposed, and the extrusion protrusion (203) is not in contact with the contact button (105), and is in a non-starting state; the auxiliary part (3) is composed of a base (301) and an elastic telescopic rod (302), and the base (301) is welded to the right end face of the visual fatigue detector (1); the carrying part (4) is composed of a connecting block (401), a sliding arm (402), a coil spring (403) and an elastic member (404), and there are two connecting blocks (401), and the two connecting blocks (401) are respectively welded to the left end face and the right end face of the visual fatigue detector (1); The front end surface of the protective cover (202) is provided with a second anti-slip groove (204) in a linear array, and the second anti-slip groove (204) is a semi-cylindrical groove structure; The front end surface of the sliding seat (201) is provided with a marking protrusion (205), which is a hemispherical structure. When the second anti-slip groove (204) at the top is aligned with the marking protrusion (205), the extrusion protrusion (203) and the contact button (105) are in contact. At this time, the contact button (105) is in a connected state. At this time, the distance between the protective cover (202) and the top is 1 cm. At this time, pressing the start button (104) can realize the start of the visual fatigue detector (1), and the start button (104) is also in an exposed state.

2. The visual fatigue detector according to claim 1, characterized in that: The base (301) is an L-shaped structure, and the left end surface of the base (301) is in elastic contact with the color knob (103), and the base (301) is pressed against the color knob (103).

3. The visual fatigue detector according to claim 1, characterized in that: Twelve first anti-slip grooves (106) are provided on the outer wall of the color knob (103) in a circular array. The first anti-slip grooves (106) are semi-cylindrical groove-shaped structures. The color knob (103) is provided with twelve color gears in total. The first anti-slip grooves (106) are aligned with the color gears of the color knob (103); An elastic telescopic rod (302) is installed on the bottom end surface of the inner wall of the base body (301), and the lower end of the elastic telescopic rod (302) is elastically engaged with the first anti-slip groove (106).

4. The visual fatigue detector according to claim 1, wherein: Two sliding arms (402) are slidably connected to the two connecting blocks (401), and a stopper is provided at the bottom of each of the two sliding arms (402). The two sliding arms (402) together form a carrying structure of the visual fatigue detector (1).

5. The visual fatigue detector according to claim 1, characterized in that: Two coil springs (403) are sleeved on each of the sliding arms (402), and the lower ends of the four coil springs (403) are in contact with the stop heads of the two sliding arms (402), and the upper ends of the four coil springs (403) are in contact with the bottom end surfaces of the two connecting blocks (401). When the stop heads of the sliding arms (402) are in contact with the ground, the distance between the visual fatigue detector (1) and the ground is 3 cm.

6. The visual fatigue detector according to claim 1, characterized in that: An elastic member (404) is adhered to the outer side of each connecting block (401), and the elastic member (404) is made of rubber. The two elastic members (404) together form the collision protection structure of the visual fatigue detector (1).

7. The visual fatigue detector according to claim 1, characterized in that: The two elastic members (404) are both concave structures, and the inner walls of the two elastic members (404) are respectively adhered and connected to the top end surface and the bottom end surface of the connecting block (401).

8. The visual fatigue detector according to claim 1, characterized in that: The outer wall of the frequency knob (102) is in elastic contact with the top surface of an elastic member (404) on the right side, and the elastic member (404) on the right side is a tight-fitting structure of the frequency knob (102).

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