A multi-station seat belt static load test device

Abstract

The application relates to the field of safety belt detection, in particular to a multi-station safety belt static load test device which comprises a detection power source, a tension sensor driven by the detection power source, a pulling piece connected to the tension sensor and the safety belt, a support frame arranged at the side, away from the tension sensor, of the pulling piece, a groove formed at the side, close to the pulling piece, of the support frame and used for placing the position of the arm connected to the shoulder of the simulation man so that the leg part of the simulation man is closer to the pulling piece than to the side, away from the pulling piece, of the support frame, and a guide inclined surface formed at the inner wall of the groove and used for sliding the position of the arm connected to the shoulder of the simulation man, so that after the simulation man is placed on the support frame, the safety belt can be directly sleeved on the leg part of the simulation man, the installation process of the safety belt is simplified, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of safety belt detection, and in particular to a multi-station safety belt static load test device. BACKGROUND

[0002] After the safety belt is manufactured, a static load test needs to be performed to ensure that the safety belt quality meets the standards. The static load test generally binds the safety belt on the simulated person according to the actual use posture, then keeps the simulated person stationary, and applies an external pulling force to the safety belt to detect whether the safety belt will appear tearing and other quality problems under the standard pulling force. Meanwhile, there are different types of safety belts, such as fall suspension safety belts or pole operation safety belts, and different safety belts have different wearing methods.

[0003] The present application provides a multi-station safety belt static load test device, which is suitable for detecting fall suspension safety belts, and refers to Figure 5 , including a hydraulic machine 1, a pulling force sensor 11 detachably connected at one end of the hydraulic machine 1 capable of vertical movement, the pulling force sensor 11 connected to a steel strand through a hook, the bottom end of the steel strand connected to a D-shaped ring on the safety belt at the back of the simulated person through a pull hook, and a bottom screw rod 12 threadedly connected at the hip of the simulated person, the bottom screw rod 12 connected to a workbench for placing the hydraulic machine 1, so that when the hydraulic machine 1 pulls the simulated person upwards, the simulated person can remain stationary to increase the pulling force on the safety belt.

[0004] According to the related technology in the above, when the safety belt is worn on the simulated person each time, the hook connected by the pulling force sensor 11 needs to be connected to the ring at the upper end of the neck of the simulated person by the hydraulic machine 1, so that the simulated person is first moved upwards, so that the safety belt is set through the leg part below the simulated person and the overall wearing of the safety belt is completed, then the simulated person is lowered, the bottom screw rod 12 is connected to the hip of the simulated person, and the hook connected by the pulling force sensor 11 is connected to the safety belt at the back of the simulated person, resulting in a too cumbersome process of wearing the safety belt on the simulated person, which affects the detection efficiency. SUMMARY

[0005] In order to reduce the influence on the detection efficiency, the present application provides a multi-station safety belt static load test device.

[0006] The multi-station safety belt static load test device provided by the present application adopts the following technical solution.

[0007] The utility model provides a kind of multi-station safety belt static load test device, including detection power source, tension sensor driven by detection power source, the pull piece connected to tension sensor and safety belt, the pull piece is equipped with support frame at the side away from tension sensor, support frame is equipped with the fixed part for the position of analog person fixed at the side away from pull piece, support frame is formed with the recess for the position of arm of analog person's shoulder to be connected to be placed to make the leg of analog person more close to pull piece compared with the side away from pull piece of support frame at the side close to pull piece, the guide slope for the position of arm of analog person's shoulder to be connected to slide is formed in the inner wall of recess at the side away from the back of analog person.

[0008] By adopting the above technical scheme, the manikin is placed on the support frame to set the falling suspension safety belt on the corresponding leg of the manikin, without the need to lift the manikin first, saving the process and accelerating the detection efficiency, and the setting of the guide slope enables the manikin to smoothly move along the guide slope into the recess when the manikin is lowered after the detection of the falling suspension safety belt is completed, so that the manikin can be accurately moved back into the recess to quickly start the next detection.

[0009] Optionally, the support frame is rotatably connected with a rotary disc at the side away from the pull piece, and the support frame is detachably connected with an insert capable of being inserted into the rotary disc.

[0010] By adopting the above technical scheme, the manikin can be rotated when the safety belt is installed, so that the safety belt can be quickly installed.

[0011] Optionally, the rotary disc is rotatably connected with a base at the side away from the support frame, the base is internally provided with a rotary power source for driving the rotary disc to rotate, and the support frame is provided with a plurality of.

[0012] By adopting the above technical scheme, the rotary disc can be rotated to install the safety belt on the manikin on the next support frame while the safety belt on the manikin on one support frame is being detected, thereby improving the detection efficiency.

[0013] Optionally, the rotary disc is provided with a plurality of simulated waists for detecting the safety belt for surrounding pole operation, the support frame is provided with a plurality of, and there is one simulated waist between any two adjacent support frames.

[0014] By adopting the above technical scheme, the safety belt for surrounding pole operation can be detected, and one simulated waist is arranged between two support frames, so that the safety belt for surrounding pole operation and the falling suspension safety belt can be detected in sequence, and even if the safety belt for surrounding pole operation does not need to be detected, the rotary disc does not need to be rotated by too large an angle to install the falling suspension safety belt on the manikin on the next support frame.

[0015] Optionally, the rotary disc is provided with a partition plate separating adjacent simulated waists and support frames, the partition plate is provided with a top table away from the rotary disc, the top table is rotationally connected with a group of guide wheels corresponding to each support frame or simulated waist, the detection power source is arranged on the rotary disc, and the pulling piece is drivingly connected with the guide wheels so that the pulling piece is connected with the detection power source at one end and moves in a direction opposite to the other end away from the detection power source.

[0016] By adopting the above technical scheme, the partition plate can separate the position for installing the safety belt and the position for detecting the safety belt, so that the worker in the safety belt installation process can be protected even if an accident occurs during the detection process. Meanwhile, the arrangement of the guide wheels does not need to set the top table at a high height, nor need to connect a long cantilever on the power rod of the detection power source, so that the pulling force applied to the safety belt can be stably applied in the case of saving space as much as possible.

[0017] Optionally, the rotary disc comprises a rotary disc, and a split plate detachably connected to the rotary disc and connected with each simulated waist or support frame.

[0018] By adopting the above technical scheme, the simulated waist or support frame can be removed or installed from the rotary disc according to actual needs.

[0019] Optionally, the rotary disc is provided with a group of two positioning rails corresponding to each split plate, and a group of two guide rails are arranged at one side of the positioning rails away from the center of the rotary disc, and the distance between the two guide rails away from the positioning rails is greater than the distance between the two guide rails close to the positioning rails.

[0020] By adopting the above technical scheme, the split plate can be conveniently moved into the two positioning rails in the same group, so as to install the split plate.

[0021] Optionally, the rotary disc is detachably connected with a connecting plate for detachable connection of the split plate, the power rod of the detection power source is provided with a downward moving piece slidingly connected to the rotary disc, and a tension spring is arranged between the downward moving piece and the connecting plate to force the connecting plate away from the split plate.

[0022] By adopting the above technical scheme, when the detection power source starts to detect by moving the power rod, the downward moving piece and the pulling piece connected with one end of the safety belt move in opposite directions, so that the tension spring is elongated to offset part of the pressure applied by the split plate to the positioning rail, so that the positioning rail is less likely to be damaged and accidents occur during the detection process.

[0023] Optionally, the downward moving piece is provided with a sleeve, the connecting plate is provided with a plug rod inserted into the sleeve, and the plug rod and the sleeve are fixedly connected with an anti-disengagement ring to always locate one end of the plug rod in the sleeve.

[0024] By adopting the technical scheme, when the puller applies too large pressure or the connecting strength between the guide rail and the rotating disc is affected in the long-term detection process, the guide rail is separated, the disassembly plate is driven to move, the insertion rod and the sleeve can block the movement of the disassembly plate to a certain extent, and damage to the whole equipment and surrounding personnel can be reduced.

[0025] Optionally, the connecting plate is provided with a fixed block at one end away from the guide rail, the disassembly plate can be inserted into the fixed block, and the connecting plate is provided with a disassembly block away from the fixed block, the disassembly block can abut against the disassembly plate so that the disassembly plate is tightly abutted against the connecting plate.

[0026] By adopting the technical scheme, the connecting strength between the disassembly plate and the connecting plate can be maintained to a certain extent, and the disassembly plate and the connecting plate can be fixed.

[0027] In summary, the present application has at least one of the following beneficial effects:

[0028] 1. The simulation person is placed in the support frame, so as to set the falling hanging safety belt on the leg part corresponding to the simulation person, without the need to lift the simulation person, saving the process and accelerating the detection efficiency;

[0029] 2. When the simulation person is lowered after the detection of the falling hanging safety belt is completed, the simulation person moves along the guide inclined surface into the groove, so that the simulation person can be accurately moved back into the groove, so as to quickly start the next detection. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic diagram of embodiment one of the present application;

[0031] Figure 2 is a structural schematic diagram of the base in which the outer part is partially removed to show the internal structure of the base;

[0032] Figure 3 is a structural schematic diagram of the rotating disc and the detection power source and the downward moving part in embodiment two;

[0033] Figure 4 is a structural schematic diagram of the rotating disc in embodiment two, which is partially cut away to show the internal structure of the rotating disc corresponding to one connecting plate;

[0034] Figure 5 is a structural schematic diagram of a prior art multi-station safety belt static load test device.

[0035] Explanation of reference signs: 1, hydraulic machine; 11, tension sensor; 12, bottom screw rod; 2, detection power source; 3, pulling piece; 31, plug rod; 32, anti-dropping ring; 33, fixed stop block; 34, disassembly stop block; 35, motor gear; 36, inner ring gear; 4, support frame; 41, guide wheel; 42, rotating disc; 43, disassembly plate; 44, positioning rail; 45, leading rail; 46, connecting plate; 47, downward moving piece; 48, stretching spring; 49, sleeve; 5, groove; 51, guide slope; 52, rotating disc; 53, plug-in piece; 55, base; 56, rotating power source; 57, simulated waist; 58, partition; 59, top table. DETAILED DESCRIPTION

[0036] The application will be further described in detail below with reference to the accompanying drawings.

[0037] Example one:

[0038] The application discloses a multi-station safety belt static load test device, which refers to Figure 1 , including the base 55 placed on the ground, the upper part of the base 55 is rotationally connected with the horizontal rotating disc 52 through the bearing, the vertical center line of the rotating disc 52 is the rotation axis of itself, a plurality of simulated waists 57 and a plurality of support frames 4 are uniformly installed above the rotating disc 52 around the axis of itself, there is one simulated waist 57 between every two adjacent support frames 4, the simulated waist 57 can be fixedly connected to the upper surface of the rotating disc 52 through four steel rods, the simulated waist 57 is used for detecting the safety belt for pole work, and the support frame 4 is used for placing the simulated person so that the lower legs of the simulated person are higher than the upper surface of the rotating disc 52, so as to install the falling suspension safety belt on the corresponding simulated person and perform detection.

[0039] Referring to Figure 1 , the bottom of the support frame 4 is rotationally connected to the upper surface of the rotating disc 52 through the bearing, the rotation axis of the support frame 4 is the vertical center line of itself, the two sides of the bottom of the support frame 4 are inserted or threadedly connected with the plug-in pieces 53 in the vertical direction, the plug-in pieces 53 can be bolts or pins, and the bottom end of the plug-in piece 53 is inserted into the rotating disc 52, so that the support frame 4 is not easy to rotate again after the installation of the falling suspension safety belt is completed. The upper part of the support frame 4 is formed with two grooves 5, the grooves 5 are used for vertically placing the shoulder and arm of the simulated person, so that the support frame 4 can support the simulated person. When the simulated person is placed in the groove, the back of the simulated person is away from the center side of the rotating disc 52, so that the worker can connect the hook and the D-shaped ring of the falling suspension safety belt located at the back of the simulated person. The lower horizontal surface of the support frame 4 is provided with a fixing piece 54, the fixing piece 54 can be a screw rod connected to the lower part of the support frame 4 by a steel rope, the fixing piece 54 is always connected to the hip of the simulated person, so that the simulated person is not easy to move upward together when the pulling piece 3 pulls upward.

[0040] Referring to Figure 1, the guide slope 51 is higher at the position closer to the center of the rotary disc 52, when the hook is moved upward through the safety belt connected to the back of the dummy, the upper part of the dummy will be inclined to the center of the rotary disc 52, after the detection is completed, the shoulder of the vertically lowered dummy can be smoothly returned to the groove 5 along the guide slope 51, so as to quickly start the next safety belt detection.

[0041] Referring to Figure 1 and Figure 2 , the upper surface of the rotary disc 52 is detachably connected with a vertical partition plate 58, the partition plate 58 separates the support frame 4 and the simulated waist 57, and the partition plate 58 surrounds the support frame 4 and the simulated waist 57 towards the space above the rotary disc 52 at the center of the rotary disc 52. The upper surface of the rotary disc 52 is detachably connected with a detection power source 2 corresponding to each support frame 4 and each simulated waist 57, the detection power source 2 can be a servo cylinder, the detection power source 2 is located in the space surrounded by the support frame 4 and the simulated waist 57 away from the partition plate 58, the upper end of the power rod of the detection power source 2 is detachably connected with a tension sensor 11, the upper part of the tension sensor 11 can be provided with a ring and connected with a pulling piece 3, the pulling piece 3 can be a steel wire rope provided with a connecting device.

[0042] Referring to Figure 1 , the upper part of the partition plate 58 is fixedly connected with a horizontal top table 59, the top table 59 is the same as the vertical center line of the rotary disc 52, the top table 59 is rotatably connected with a group of guide wheels 41 corresponding to each support frame 4 and each simulated waist 57, each group of guide wheels 41 is provided with two, the connecting direction of the two guide wheels 41 in the same group passes through the vertical center line of the top table 59, each pulling piece 3 is drivingly connected to the upper part of a group of guide wheels 41, the end of the pulling piece 3 away from the tension sensor 11 is connected to the corresponding falling suspension safety belt or enclosure rod operation safety belt, when the pulling piece 3 is connected to the falling suspension safety belt, the pulling piece 3 can be connected with the hook to hook the D-shaped ring of the falling suspension safety belt. When the pulling piece 3 is connected to the enclosure rod operation safety belt, the pulling piece 3 can be connected with the rope roller to facilitate the detection of the winding of the enclosure rod operation safety belt.

[0043] Referring to Figure 2, the bottom 55 inside detachable connection has rotary power source 56, rotary power source 56 can be motor, rotary power source 56 output shaft can coaxially fixedly connected with motor gear 35, rotary disc 52 bottom coaxially fixedly connected with the inner ring gear 36, motor gear 35 is engaged in the inner ring gear 36 of the inner ring tooth, so that the rotary disc 52 can rotate to install the next safety belt when a safety belt is detected, improve the detection efficiency. At the same time, the electric slip ring is arranged between the rotary disc 52 and the base 55 to supply power to the electric equipment on the rotary disc 52. In other embodiments of the present embodiment, the rotary power source 56 can be a reduction motor and directly connected to the rotary power source 56 at the center through a shaft coupling.

[0044] The implementation principle of the multi-station safety belt static load test device of the first embodiment of the present application is that when the falling suspension safety belt is installed, the corresponding simulated person on the support frame 4 is installed, then the hook of the pull piece 3 is connected to the D-shaped ring of the falling suspension safety belt, and then the power rod of the power source 2 is detected to descend, so that the pull piece 3 close to one end of the support frame 4 can drive the falling suspension safety belt located at the back of the simulated person to ascend, so as to detect the falling suspension safety belt. When one falling suspension safety belt is detected, the rotary disc 52 rotates to install the next falling suspension safety belt or the surrounding rod operation safety belt.

[0045] When the surrounding rod operation safety belt is installed, the surrounding rod operation safety belt is wound through the rope roller connected to the simulated waist 57 and the pull piece 3, and then the surrounding rod operation safety belt itself is connected, and then the power rod of the power source 2 is detected to descend, so that the pull piece 3 close to one end of the simulated waist 57 is moved upward to detect the surrounding rod operation safety belt.

[0046] Embodiment two:

[0047] The second embodiment of the present application discloses a multi-station safety belt static load test device, referring to Figure 3 The difference between the first embodiment and the second embodiment is that the rotary disc 52 comprises a rotary disc 42 rotatably connected to the base 55, the rotary axis of the rotary disc 42 is the vertical center line of itself, and a plurality of horizontal split plates 43 are detachably connected to the upper surface of the rotary disc 42, each split plate 43 is provided with a corresponding simulated waist 57 or a support frame 4 rotatably connected to the upper surface of each split plate 43, so as to adjust according to the type of safety belt to be detected.

[0048] Referring to Figure 3, the upper surface of the rotating disc 42 corresponds to each piece of the disassembled plate 43 is detachably connected with a group of positioning rails 44 through bolts, the same group of positioning rails 44 is provided with two to move into the direction of the rotating disc 42 center. Each group of positioning rails 44 away from the center of the rotating disc 42 one end is fixedly connected with a group of guide rails 45, the same group of two guide rails 45 is provided, the same group of two guide rails 45 is close to the end of the positioning rail 44 spacing is less than the guide rail 45 away from the positioning rail 44 spacing, in order to move into the positioning rail 44 to the disassembled plate 43. The bottom surface of the disassembled plate 43 rotatably provided with a plurality of universal ball, and the disassembled plate 43 periphery four corners are all treated with rounded corners, so that the disassembled plate 43 along the guide rail 45 smoothly into the positioning rail 44.

[0049] Referring to Figure 3 and Figure 4 , the rotating disc 42 corresponds to each group of positioning rails 44 is provided with a connecting plate 46, the connecting plate 46 is horizontally and vertically inserted in the rotating disc 42, the upper surface of the connecting plate 46 is flush with the upper surface of the rotating disc 42, the upper surface of the connecting plate 46 is close to the center of the rotating disc 42 fixedly connected with two fixed blocks 33, the fixed block 33 is L type, the fixed block 33 horizontal section is located above the vertical section, the disassembled plate 43 is abutted on the similar side surface of the fixed block 33 horizontal section and vertical section. The upper surface of the connecting plate 46 is detachably connected with two disassembly blocks 34 through bolts, the disassembly block 34 and the fixed block 33 are also L type, so that the disassembled plate 43 is fixed.

[0050] Referring to Figure 4 , the detection power source 2 power rod is detachably connected with the lower moving piece 47, the lower moving piece 47 is approximately L type, the vertical section of the lower moving piece 47 is connected with the power rod of the detection power source 2, the horizontal section of the lower moving piece 47 is located in the rotating disc 42, the upper surface of the lower moving piece 47 is connected with the extension spring 48 through the ring in the rotating disc 42, the upper end of the extension spring 48 is connected with the ring on the bottom surface of the connecting plate 46, the extension spring 48 gives the connecting plate 46 a downward force, so that the disassembled plate 43 is reluctant to exert excessive upward pressure on the positioning rail 44. The bottom end of the plug rod 31 is inserted with the sleeve 49 fixedly connected with the upper surface of the lower moving piece 47, the opening inner wall of the sleeve 49 and the end of the plug rod 31 inserted in the sleeve 49 are fixedly connected with the anti falling ring 32, the two anti falling rings 32 are abutted, so that the plug rod 31 is not easy to separate from the sleeve 49, even if the positioning rail 44 can not bear the upward pressure of the disassembled plate 43 and move upward, the plug rod 31 and the sleeve 49 will make the connecting plate 46 and the disassembled plate 43 not easy to move upward too much, so that the whole equipment is not easy to be damaged.

[0051] The implementation principle of the multi-station safety belt static load test device of the second embodiment of the application is that the simulation waist 57 and the support frame 4 can be removed from the turntable 42 according to the needs for replacement, and the disassembly plate 43 can be conveniently removed or installed, and the reverse movement of the one end of the safety belt connected by the detection power source 2 power rod and the pull piece 3 is used to reduce the pressure of the disassembly plate 43 applied to the positioning rail 44, and the possibility of damage of the positioning rail 44 is reduced.

[0052] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so: all equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A multi-station safety belt static load testing device, comprising a detection power source (2), a tension sensor (11) driven by the detection power source (2), and a tension member (3) connected to the tension sensor (11) and the safety belt, characterized in that: The pulling piece (3) is provided with a support frame (4) on the side away from the tension sensor (11), the support frame (4) is provided with a fixing piece (54) for fixing the position of the simulation person on the side away from the pulling piece (3), the support frame (4) is formed with a groove (5) on the side close to the pulling piece (3) for the position of the arm connected to the shoulder of the simulation person, the inner wall of the groove (5) is formed with a guide slope (51) on the side away from the back of the simulation person for sliding of the position of the arm connected to the shoulder of the simulation person; The support frame (4) is rotatably connected with a rotary disc (52) on the side away from the pulling piece (3), the support frame (4) is detachably connected with a plug-in part (53) capable of being plugged into the rotary disc (52), the position with a higher height of the guide slope (51) is closer to the center of the rotary disc (52).

2. The multi-station seat belt static load test device of claim 1, wherein: The rotary disc (52) is rotatably connected with a base (55) on the side away from the support frame (4), the base (55) is internally provided with a rotary power source (56) for driving the rotary disc (52) to rotate, and the support frame (4) is provided with a plurality of support frames.

3. The multi-station seat belt static load test device of claim 1, wherein: The rotary disc (52) is provided with a plurality of simulation waists (57) for detecting safety belts of surrounding poles, and the support frame (4) is provided with a plurality of support frames, and there is one simulation waist (57) between adjacent two support frames (4).

4. The multi-station seat belt static load test device of claim 3, wherein: The rotary disc (52) is provided with a partition plate (58) for separating adjacent simulation waists (57) and support frames (4), the partition plate (58) is provided with a top table (59) on the side away from the rotary disc (52), the top table (59) is rotatably connected with a group of guide wheels (41) corresponding to each support frame (4) or simulation waist (57), the detection power source (2) is arranged on the rotary disc (52), and the pulling piece (3) is drivingly connected with the guide wheels (41) so that the pulling piece (3) is connected with one end of the detection power source (2) and the moving direction away from the other end of the detection power source (2) is opposite.

5. The multi-station seat belt static load test device of claim 4, wherein: The rotary disc (52) comprises a rotary disc (42) and a split plate (43) detachably connected with the rotary disc (42) and connected with each simulation waist (57) or support frame (4).

6. The multi-station seat belt static load test device of claim 5, wherein: The rotary disc (42) is provided with a group of two positioning rails (44) corresponding to each split plate (43), one group of two guide rails (45) is arranged on the side away from the center of the rotary disc (42), and the distance between the two guide rails (45) away from the one end of the positioning rail (44) is greater than the distance between the two guide rails (45) close to the one end of the positioning rail (44).

7. The multi-station seat belt static load test device of claim 5, wherein: The rotary disc (42) is detachably connected with a connecting plate (46) for detachable connection of the split plate (43), the power rod of the detection power source (2) is provided with a downward moving piece (47) slidingly connected with the rotary disc (42), and a tension spring (48) is arranged between the downward moving piece (47) and the connecting plate (46) to force the connecting plate (46) to move away from the split plate (43).

8. The multi-station seat belt static load test device of claim 7, wherein: The lower moving piece (47) is provided with a sleeve (49), the connecting plate (46) is provided with a plug rod (31) plugged into the sleeve (49), and the plug rod (31) and the sleeve (49) are fixedly connected with an anti-drop ring (32) allowing one end of the plug rod (31) to be always located in the sleeve (49).

9. The multi-station seat belt static load test device of claim 7, wherein: The connecting plate (46) is provided, at one end away from the guide-in rail (45) of the positioning rail (44), with a fixed stopper (33) allowing the disassembly plate (43) to be inserted, and is provided, away from the fixed stopper (33), with a disassembly stopper (34) allowing the disassembly plate (43) to be abutted so that the disassembly plate (43) is tightly abutted to the connecting plate (46).

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