Safety protector strength detection device

Abstract

The utility model relates to the field of safety protection tool detection, in particular to a safety protection tool strength detection device which comprises a rack, a driving mechanism arranged at the top of the rack, a supporting mechanism arranged in the rack, supports arranged on the front side and the rear side of the bottom of the supporting mechanism, a detection mechanism and a dragging mechanism. The detection guide plate drives the detection punch rod to move downwards to detect the impact strength, the limiting turning plate prevents the balance weight ring from being separated from the detection punch rod, the balance weight ring is added or removed immediately to detect the safety protection tool with different impact strengths, and the detection towing bracket is hooked on the side face of the safety protection tool through the detection guide plate. The detection towing bracket is lifted upwards through the detection guide plate to test the stress condition when the safety protection tool is separated from the human body model under different tensile forces.

Description

Technical Field

[0001] The utility model relates to the field of safety gear detection, in particular to a safety gear strength detection device. Background Art

[0002] After searching the patent document with announcement number CN221405138U, it is found that the impact head can be used to perform impact detection on the safety helmet when the impact head is in free fall. After the two hollow head molds are separated, the safety rope can be stretched and tested under the stretching action of the stretching cylinder. At the same time, the displacement component is used to adjust the height of the detection installation plate to allow the user to operate.

[0003] According to the patent document, after the entire safety gear is subjected to an impact test, if the gear is not damaged, the impact force needs to be increased again. Since the height of the entire detection device is limited, if the entire impact force needs to be increased quickly, the gravity of the impact head can only be increased. Since the gravity of the entire impact head is constant, it is not convenient for the entire device to increase the impact force quickly and accurately. In addition, during the entire detection process, the connection strength between the safety helmet and its bushing and chin strap is not tested. If the connection strength between the safety helmet and the bushing and chin strap is weak, the safety helmet will be separated from the head when it is hit from the side, which is very dangerous. Utility Model Content

[0004] The purpose of the utility model is to provide a safety gear strength detection device in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A safety gear strength detection device comprises a frame, a driving mechanism is arranged on the top of the frame, a supporting mechanism is arranged inside the frame, brackets are arranged on both the front and rear sides of the bottom of the supporting mechanism, and also comprises a detection mechanism and a dragging mechanism;

[0007] The detection mechanism includes a detection guide plate, a detection punch rod is provided in the middle position of the detection guide plate, a counterweight ring is sleeved on the outer side of the detection punch rod, four circumferentially distributed limit grooves are opened on the upper end of the detection punch rod, and a limit flap for limiting the counterweight ring is rotatably connected in each limit groove, a limit spring for pushing the limit flap to flip upward is provided between the limit flap and the limit groove, a detection slide seat for sliding connection to the middle position of the detection guide plate is provided at the lower end of the detection punch rod, and an adjusting screw is rotatably connected to the middle position of the detection guide plate;

[0008] The dragging mechanism includes a pressure frame, and two symmetrical connecting seats are arranged at the bottom of the pressure frame. Both connecting seats are rotatably connected to the detection bracket. Both connecting seats are provided with pressure sensors fixed at the bottom of the detection bracket. Two front-to-back symmetrical tension springs are arranged between the two detection brackets.

[0009] Preferably: the detection guide plate is provided with sliding grooves at both sides of the detection punch rod, the lower ends of the two connecting seats of the pressure frame pass through the two sliding grooves respectively, and the detection guide plate is provided with a guide groove at a position between the two sliding grooves.

[0010] Preferably, the pressure sensor is fixedly connected to the pressure frame, and a hook for hooking on the side of the safety helmet is provided at the lower end of the detection bracket.

[0011] Preferably: a threaded hole cooperating with the adjusting screw is provided at the lower end of the detection punch rod, and a notch for being clamped in the guide groove is provided on the side surface of the detection slide seat.

[0012] Preferably: the supporting mechanism includes a test slide, a two-way telescopic rod is provided at the bottom of the test slide, two connecting rods with a V-shaped structure are hinged at both ends of the two-way telescopic rod, and the ends of the two connecting rods on the same side that are away from each other are hinged at the bottom of the test slide and the bottom of the frame respectively, and two side sliding grooves for allowing the test slide to slide are opened on both sides of the frame, and grooves are opened at the upper ends of the two side sliding grooves.

[0013] Preferably: the driving mechanism includes two driving wheels, steel wire ropes are fixed on the outside of the two driving wheels, the lower ends of the two steel wire ropes are fixed on both sides of the detection guide plate, a driving motor is provided on the front side of the two driving wheels, the output end of the driving motor is connected to the front end of the two driving wheels through a synchronous belt drive, and a positioning frame for rotatably supporting the two driving wheels is provided on the top of the frame.

[0014] The beneficial effects compared with the prior art are as follows:

[0015] 1. The detection guide plate drives the detection punch rod to move downward for impact strength detection, and the limit flap is used to prevent the counterweight ring from detaching from the detection punch rod. Then the counterweight ring is added or removed to detect the safety gear with different impact strengths;

[0016] 2. Hook the test trailer on the side of the safety gear through the test guide plate, and pull the test trailer upward through the test guide plate to test the stress conditions of the safety gear when it is separated from the human body model under different pulling forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a safety gear strength detection device described in the utility model;

[0019] Figure 2 It is a cross-sectional view of a safety gear strength detection device described in the utility model;

[0020] Figure 3 It is a schematic diagram of the frame structure of a safety gear strength detection device described in the utility model;

[0021] Figure 4 It is a schematic diagram of the driving mechanism structure of a safety gear strength detection device described in the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of a detection punch rod of a safety gear strength detection device described in the utility model;

[0023] Figure 6 It is a schematic diagram of the limit flap structure of a safety gear strength detection device described in the utility model;

[0024] Figure 7 It is a schematic diagram of the structure of a detection mechanism of a safety gear strength detection device described in the utility model;

[0025] Figure 8 It is a structural schematic diagram of a dragging mechanism of a safety gear strength detection device described in the utility model;

[0026] Fig. 9 This is a schematic diagram of the support mechanism structure of a safety gear strength detection device described in the utility model;

[0027] Fig.10 It is a schematic diagram of the structure of a detection punch rod, a detection slide seat and a detection guide plate of a safety gear strength detection device described in the utility model;

[0028] Fig.11 It is a schematic diagram of the structure of a press frame and a detection guide plate of a safety gear strength detection device described in the utility model;

[0029] Fig.12 It is a partial cross-sectional view of a detection guide plate of a safety gear strength detection device described in the utility model.

[0030] The following are the descriptions of the reference numerals:

[0031] 1. Support mechanism; 2. Detection mechanism; 3. Drag mechanism; 4. Frame; 5. Drive mechanism; 6. Bracket; 11. Test slide; 12. Connecting rod; 13. Two-way telescopic rod; 21. Detection punch rod; 22. Limit flap; 23. Detection slide; 24. Adjustment screw; 25. Detection guide plate; 31. Press frame; 32. Pressure sensor; 33. Detection drag frame; 34. Tension spring; 51. Drive motor; 52. Drive wheel; 53. Wire rope. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0033] The utility model is further described below in conjunction with the accompanying drawings:

[0034] like Figure 1-Figure 12 As shown, a safety gear strength detection device includes a frame 4, a driving mechanism 5 is provided on the top of the frame 4, a supporting mechanism 1 is provided inside the frame 4, brackets 6 are provided on both the front and rear sides of the bottom of the supporting mechanism 1, and also includes a detection mechanism 2 and a dragging mechanism 3;

[0035] In this embodiment: the support mechanism 1 includes a test slide 11, a two-way telescopic rod 13 is provided at the bottom of the test slide 11, and two connecting rods 12 with a V-shaped structure are hinged at both ends of the two-way telescopic rod 13. The ends of the two connecting rods 12 on the same side that are away from each other are hinged at the bottom of the test slide 11 and the bottom of the frame 4 respectively. Two side slide grooves for sliding the test slide 11 are provided at both sides of the inside of the frame 4, and grooves are provided at the upper ends of the two side slide grooves. The telescopic part of the two-way telescopic rod 13 is extended to push the two connecting rods 12 on both sides thereof, so that the ends of the two connecting rods 12 that are away from each other are away from each other, and then the test slide 11 is moved upward to adjust the height of the human body model.

[0036] In this embodiment: the detection mechanism 2 includes a detection guide plate 25, a detection punch rod 21 is provided in the middle position of the detection guide plate 25, a counterweight ring is sleeved on the outside of the detection punch rod 21, four circumferentially distributed limit grooves are provided at the upper end of the detection punch rod 21, and a limit flap 22 for limiting the counterweight ring is rotatably connected in each limit groove, a limit spring for pushing the limit flap 22 to flip upward is provided between the limit flap 22 and the limit groove, a detection slide 23 for sliding connection to the middle position of the detection guide plate 25 is provided at the lower end of the detection punch rod 21, an adjusting screw 24 is rotatably connected to the middle position of the detection guide plate 25, the detection guide plate 25 is provided with sliding grooves at both sides of the detection punch rod 21, and a guide groove is provided at the position between the two sliding grooves, a threaded hole matching the adjusting screw 24 is provided at the lower end of the detection punch rod 21, and a threaded hole for locking in the guide The detection guide plate 25 is used to move upward to drive the detection punch rod 21 and the dragging mechanism 3 to move synchronously. After the lower end of the detection punch rod 21 is at a suitable height, the adjusting screw 24 is turned to drive the detection punch rod 21 to allow the detection slide 23 to move in the guide groove of the detection guide plate 25, so that the lower end of the detection punch rod 21 is directly above the safety helmet to be tested. The detection guide plate 25 drives the detection punch rod 21 to fall freely and allows the lower end of the detection punch rod 21 to hit the safety helmet, thereby testing the protective strength of the safety helmet. In addition, a counterweight ring can be inserted from the upper end of the detection punch rod 21 to increase the impact force of the entire detection punch rod 21. In addition, the limit spring is used to push the limit flap 22 to flip it perpendicular to the axis of the detection punch rod 21, and then the counterweight ring inserted into the detection punch rod 21 is limited by four limit flaps 22 to prevent the counterweight ring from detaching from the detection punch rod 21 during impact.

[0037] In this embodiment, the dragging mechanism 3 includes a pressing frame 31, and two symmetrical connecting seats are arranged at the bottom of the pressing frame 31. The lower ends of the two connecting seats of the pressing frame 31 pass through two sliding grooves respectively. The two connecting seats are rotatably connected to the detection bracket 33. The two connecting seats are provided with pressure sensors 32 fixed at the bottom of the detection bracket 33. Two tension springs 34 symmetrically arranged front and back are arranged between the two detection brackets 33. The pressure sensor 32 is fixedly connected to the pressing frame 31. The pressure sensor 32 adopts LC315 or LCM315 type. The lower end of the detection bracket 33 is provided with a hook for hooking on the side of the helmet. The detection guide plate 25 is moved downward to make the lower ends of the two detection brackets 33 move from the side of the helmet. The two detection carriages 33 are pulled closer to each other by tightening the spring 34, and then the hooks at the lower ends of the detection carriages 33 are hooked on the two sides of the safety helmet, and then the chin strap of the safety helmet is fixed to the mannequin's jaw. Then the detection guide plate 25 drives the two detection carriages 33 to move upward through the pressing frame 31, and the safety helmet is pulled upward by the two detection carriages 33, and then the chin strap is in a tightened state. As the detection carriage 33 continues to move upward, the pressure sensor 32 between the pressing frame 31 and the detection guide plate 25 begins to be stressed, and then the pressure sensor 32 detects the tension indication generated by the chin strap, and the chin strap force data is recorded after the chin strap breaks.

[0038] In this embodiment: the driving mechanism 5 includes two driving wheels 52, and steel wire ropes 53 are fixed on the outer sides of the two driving wheels 52. The lower ends of the two steel wire ropes 53 are fixed on the two sides of the detection guide plate 25. A driving motor 51 is provided on the front side of the two driving wheels 52. The output end of the driving motor 51 is connected to the front end of the two driving wheels 52 through a synchronous belt transmission. A positioning frame for rotatably supporting the two driving wheels 52 is provided on the top of the frame 4. The driving motor 51 is used to drive the two driving wheels 52 to rotate synchronously through the synchronous belt transmission. The two steel wire ropes 53 are wound by the rotation of the two driving wheels 52, which then drives the detection guide plate 25 to move upward, and then lifts the detection guide plate 25 to a suitable height.

[0039] Working principle: When in use, first put the safety helmet on the head of the human model at the top of the test slide 11, then buckle the chin strap at the lower jaw position of the human model, turn the adjusting screw 24 to drive the detection punch 21 to move the detection slide 23 in the guide groove of the detection guide plate 25, so that the lower end of the detection punch 21 is directly above the safety helmet to be tested, and at the same time, pull the pressure frame 31 to move forward along the inside of the sliding groove. When the two connecting seats at the bottom of the pressure frame 31 are pulled to the front end of the guide groove, the lower ends of the detection brackets 33 on the two connecting seats are immediately in the front side of the safety helmet, avoiding interference when the detection punch 21 hits the safety helmet;

[0040] Then the driving motor 51 drives the two driving wheels 52 to rotate synchronously through the synchronous belt transmission, and the two steel wires 53 are wound by the rotation of the two driving wheels 52, and then the detection guide plate 25 is driven to move upward. After the detection guide plate 25 is lifted to a suitable height, the power supply of the driving motor 51 is disconnected. At this time, the two driving wheels 52 no longer wind the steel wires 53, and then the detection guide plate 25 moves downward along the side slide groove under the action of gravity, and the detection plunger 21 is driven by the detection guide plate 25 to fall freely, so that the lower end of the detection plunger 21 hits the safety helmet, thereby testing the protective strength of the safety helmet;

[0041] In addition, a counterweight ring can be inserted from the upper end of the detection punch rod 21 to increase the impact force of the entire detection punch rod 21. In addition, the limit spring pushes the limit flap 22 to flip it perpendicular to the axis of the detection punch rod 21, and then the four limit flaps 22 are used to limit the counterweight ring inserted into the detection punch rod 21 to prevent the counterweight ring from detaching from the detection punch rod 21 during impact.

[0042] When the strength of the chin strap of the helmet needs to be tested, the testing guide plate 25 moves up a certain distance under the action of the driving mechanism 5, so that the lower end of the testing carriage 33 is higher than the top of the helmet. At the same time, during the upward movement of the testing guide plate 25, the pressing frame 31 is pushed to move backward along the two sliding grooves, and the adjusting screw 24 is turned to drive the testing punch rod 21 to move backward along the guide groove to avoid collision and interference between the testing punch rod 21 and the helmet. In addition, when the lower end of the testing carriage 33 is directly above the helmet, as the testing guide plate 25 moves downward, the lower ends of the two testing carriages 33 pass through the side of the helmet, and the spring is tightened. 34 is used to pull the two detection carriages 33 closer to each other, and then the hooks at the lower ends of the detection carriages 33 are hooked on the two sides of the helmet, and then the detection guide plate 25 drives the two detection carriages 33 to move upward through the pressure frame 31, and the helmet is pulled upward by the two detection carriages 33, and then the chin strap is in a tensioned state. As the detection carriage 33 continues to move upward, the pressure sensor 32 between the pressure frame 31 and the detection guide plate 25 begins to be stressed, and then the pressure sensor 32 detects the tension indication generated by the chin strap, and records the chin strap force data when the chin strap breaks or the cap lining is separated from the helmet.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A safety gear strength detection device, comprising a frame (4), a driving mechanism (5) being provided on the top of the frame (4), a supporting mechanism (1) being provided inside the frame (4), and brackets (6) being provided on both the front and rear sides of the bottom of the supporting mechanism (1), characterized in that: It also includes a detection mechanism (2) and a dragging mechanism (3); The detection mechanism (2) comprises a detection guide plate (25), a detection plunger (21) is provided at the middle position of the detection guide plate (25), a counterweight ring is sleeved on the outer side of the detection plunger (21), four circumferentially distributed limit grooves are provided at the upper end of the detection plunger (21), and a limit flap (22) for limiting the counterweight ring is rotatably connected in each limit groove, a limit spring for pushing the limit flap (22) to flip upward is provided between the limit flap (22) and the limit groove, a detection slide seat (23) for slidably connecting to the middle position of the detection guide plate (25) is provided at the lower end of the detection plunger (21), and an adjusting screw (24) is rotatably connected to the middle position of the detection guide plate (25); The dragging mechanism (3) comprises a pressure frame (31), the bottom of the pressure frame (31) is provided with two symmetrical connecting seats, both connecting seats are rotatably connected to the detection bracket (33), both connecting seats are provided with pressure sensors (32) fixed to the bottom of the detection bracket (33), and two front-to-back symmetrical tension springs (34) are provided between the two detection brackets (33).

2. A safety gear strength detection device according to claim 1, characterized in that: The detection guide plate (25) is provided with sliding grooves at both sides of the detection punch rod (21), the lower ends of the two connecting seats of the pressing frame (31) pass through the two sliding grooves respectively, and the detection guide plate (25) is provided with a guide groove at a position between the two sliding grooves.

3. A safety gear strength detection device according to claim 1, characterized in that: The pressure sensor (32) is fixedly connected to the pressure frame (31), and a hook for hooking on the side of a safety helmet is provided at the lower end of the detection bracket (33).

4. A safety gear strength detection device according to claim 2, characterized in that: A threaded hole cooperating with the adjusting screw (24) is formed at the lower end of the detection punch rod (21), and a notch for being clamped in the guide groove is formed on the side surface of the detection slide seat (23).

5. A safety gear strength detection device according to claim 1, characterized in that: The support mechanism (1) comprises a test slide (11), a bidirectional telescopic rod (13) being provided at the bottom of the test slide (11), two connecting rods (12) being hinged at both ends of the bidirectional telescopic rod (13) and being distributed in a V-shaped structure, and ends of the two connecting rods (12) on the same side that are away from each other are respectively hinged at the bottom of the test slide (11) and the bottom of the frame (4), and two side slide grooves for allowing the test slide (11) to slide are provided at both sides of the interior of the frame (4), and grooves are provided at the upper ends of the two side slide grooves.

6. A safety gear strength detection device according to claim 1, characterized in that: The driving mechanism (5) comprises two driving wheels (52), steel wire ropes (53) are fixed to the outside of the two driving wheels (52), the lower ends of the two steel wire ropes (53) are fixed to the positions on both sides of the detection guide plate (25), a driving motor (51) is provided on the front side of the two driving wheels (52), the output end of the driving motor (51) is connected to the front end of the two driving wheels (52) through a synchronous belt transmission, and a positioning frame for rotatably supporting the two driving wheels (52) is provided on the top of the frame (4).

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