CN217716973U - Jolting test machine and wheelchair test device - Google Patents

Abstract

A jolt testing machine relates to the field of medical equipment. The device is provided with a rack, two rotating rollers, a rolling table top, a motor and an adjusting device are arranged below the rack, the rolling table top is provided with a first supporting plate and a testing gap positioned between the first supporting plates, the two rotating rollers are arranged in the testing gap, the motor is connected with the rotating rollers and used for driving the rotating rollers to rotate in the testing gap, a second supporting plate is arranged below the first supporting plate and used for supporting the rotating rollers, the adjusting device is arranged on one side of the supporting seat and movably connected with the nearest rotating roller, the distance between the two rotating rollers is adjusted by moving the nearest rotating roller back and forth, and impact bulges are distributed on the periphery of the two rotating rollers; the utility model discloses still include a wheelchair testing arrangement. The utility model discloses an impact protruding structure on changeing the roller, come the simulation wheelchair and be meetting jolting walking of obstacle road conditions, also adjust the interval between the two rollers in advance through handle and lead screw structure simultaneously, carry out the test of jolting of different model wheelchairs.

Description

Bump testing machine and wheelchair testing device

Technical Field

The utility model relates to the field of medical equipment, more specifically relates to test machine and wheelchair testing arrangement jolt.

Background

Wheelchairs are chairs equipped with wheels to help replace walking and are classified into electric and manual folding wheelchairs. The wheelchair is an important mobile tool for home rehabilitation, turnover transportation, treatment and outgoing activities of wounded persons, patients and disabled persons, not only meets the requirements of physically disabled persons and persons with mobility disabilities for riding instead of walk, but also is more important to facilitate the family members to move and take care of the patients, so that the patients can do physical exercises and participate in social activities by means of the wheelchair.

As a common travel tool, when the wheelchair meets rough road conditions, the whole wheelchair device is often subjected to various bumping conditions, and the bumping conditions have a non-negligible influence on the service life of the wheelchair.

However, the conventional wheelchair testing device does not have a test for simulating the bumping situation as an index of the test.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome at least one defect (not enough) of the prior art, and provides a jolt test machine and a wheelchair test device for simulating and testing the safety of the wheelchair under the jolt condition.

The utility model discloses the technical scheme who takes is, and the test machine of jolting is equipped with the frame, the frame below is equipped with two and changes roller, roll mesa, motor, adjusting device, roll the mesa and be equipped with first backup pad, be located the test clearance between the first backup pad, two change the roller and locate in the test clearance, the motor is connected change the roller, be used for driving change the roller at test clearance internal rotation, first backup pad below is equipped with the second backup pad, is used for supporting change the roller, adjusting device locates two commentaries on classics rollers of roll mesa one side and swing joint, two change roller peripheral distribution have impact protrudingly. In the scheme, the wheelchair is placed above the two rotating rollers in the inner side of the rack, the two rotating rollers are driven by the motor to rotate, the impact protrusions arranged on the rotating rollers start to impact the wheelchair above the rollers, the impact situation can simulate the bumping situation of the wheelchair when encountering obstacle road conditions, the performance parameters of the wheelchair under the bumping test can be provided, and the accuracy of the wheelchair test and evaluation can be improved.

The scheme can also be as follows: the roller is arranged on the rolling table board through the supporting seat, the rotation of the roller on the supporting seat is realized through a motor, one side of the roller, which is close to the adjusting device, is provided with a transmission lead screw connected with the supporting seat, and the adjusting device is provided with a handle connected with the transmission lead screw.

The above scheme may further be: the impact protrusions are arranged along the length direction of the rotating roller and are evenly distributed on the rotating roller in a cuboid shape.

The above scheme may further be: scales corresponding to the centers of the two rotating rollers are arranged below the frame and used for assisting in observing the distance between the two rotating rollers; on the basis of through gear, rack mode of regulation, this scheme further provides the scale design, because current wheelchair device has the specification of multiple equidimension not, the interval between each runner is also different in the wheelchair, and the utility model discloses the object of jolting the contact should be corresponding runner, when putting into the wheelchair and adjusting again, the wheelchair gravity that increases on the commentaries on classics roller often can increase the frictional force between the adjusting device, especially when the weight of wheelchair is great, the degree of difficulty of spacing also can increase, consequently, adjusting device's regulation should be before the wheelchair is put into to this kind of regulation is the runner that correctly corresponds the wheelchair in advance, consequently, the scale that increases can make obvious acquireing and adjust the interval between two commentaries on classics rollers after the specification of operating personnel acquireing the wheelchair.

The above scheme may further be: two change the roller for activity roller and fixed roll, activity roller swing joint in the second backup pad, fixed roll fixed connection is in the second backup pad, the zero point of scale is to being located fixed roll the central axis. For further reducing the degree of difficulty of adjusting, the utility model discloses further reduce the commentaries on classics roller quantity of adjusting, only need adjust one of them commentaries on classics roller and the activity roller promptly, under same transmission rack length, only need remove a live-rollers promptly spacing, adjust the dynamics and need not to increase.

Based on the bump tester, another technical scheme can also be as follows: a wheelchair testing device comprises a jolt testing machine, wherein two rotating rollers are used for conducting jolt testing on a wheelchair above a testing gap and a first supporting plate, and a binding device is arranged to limit the wheelchair. In this scheme, because the prominent impact action of impact often can change the position of wheelchair, cause the unsustainability of experiment, consequently, this scheme has further increased the constraint device of wheelchair constraint, restricts the wheelchair and rocking the displacement jolting.

The above scheme may further be: a slope door and a control device for controlling the slope door to open and close are arranged on one side of the rack, and the control device controls the slope door to open on one side of the rack to form a slope. For the operation of placeeing of making things convenient for the wheelchair, the utility model discloses the slope door in frame one side has further been increased for the slope door can be put on ground on one side when opening, write into the slope of direction, according to the rotation of wheelchair, makes things convenient for operating personnel to impel the frame inboard commentaries on classics roller with the wheelchair from the slope.

The above scheme may further be: one side of the rack close to the slope door is fixedly connected with a guide device, and the outer side of the guide device is obliquely and downwards arranged relative to the surface where the first supporting plate is located; in this scheme, when the slope door put down and form the slope, its rotation end with the frame both need overcome slope door pivoted stress deformation, also need participate in the bearing of slope door simultaneously, is unfavorable for the extension rotate end structure's life, consequently, the utility model discloses a further set up guider, when the slope door falls down, guider's outside end can further bearing slope door's gravity, reduces and is in rotate the last atress loss of serving.

The above scheme may further be: the frame is provided with a movable railing and a quick clamp for fixing the movable railing, and/or is provided with a counterweight body, and the counterweight body is placed and fixed on the wheelchair; in order to further increase the reference of experimental tests, the scheme further increases the weight on the wheelchair, and a specific implementation mode can be that a square weight is added and placed on the seat of the wheelchair to simulate the situation that a human body sits on the wheelchair and provide the reference of tests; the railing movably arranged on the rack is beneficial to binding the wheelchair according to the shape of the wheelchair, and the wheelchair is prevented from sliding out of the inner side of the rack.

The above scheme may further be: the binding device is a binding belt and is formed by winding the wheelchair and the frame or the movable railing, and/or a traction device is arranged and comprises a traction motor, a traction rope and a steering wheel, the motor is fixedly connected with the traction rope, the traction rope bypasses the steering wheel and is fixedly connected with the wheelchair, and the wheelchair is pulled to pass through the slope to the position above the two rotating rollers under the driving of the motor. In the scheme, the binding device is further designed into a binding belt, and the binding limit of the wheelchair is realized by winding the wheelchair structure and the railing or frame structure through the binding belt; and simultaneously, the utility model discloses the difficulty that especially has increased the wheelchair of heavy object and moved is considered, has further increased draw gear, drives the haulage rope through the motor and carries the wheelchair and advance slope and first backup pad isotructure, has reduced the degree of difficulty of test experiment.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a setting is protruding in the impact on changeing the roller, come the simulation wheelchair and meetting the walking of jolting of obstacle road conditions, further increased the test parameter of wheelchair under the condition of jolting, simultaneously the utility model discloses further adjust the interval between the two rollers in advance through handle and gear structure, drive two roller rotations with single motor through the rack structure, save motor cost, and make the rotation between two rollers more harmonious, set up the promotion of traction rope structure replacement manual work to the wheelchair, set up the position that the further constraint wheelchair of constraint area structure makes it can not take place the test process that obvious skew influences the experiment, finally acquire the performance parameter of wheelchair after the test of jolting, if the stability of wheelchair structure-whether have obvious not hard up of walking wheel, whether the heavy object on the seat can fall, or whether the deformation of seat can be accepted etc..

Drawings

Fig. 1 is a front view of the jolt testing machine of the present invention.

Fig. 2 is a front view of the jolt testing machine of the present invention.

Fig. 3 is a side view of the jolt testing machine of the present invention.

Fig. 4 is a structural diagram of the adjusting device of the present invention.

Fig. 5 is a structural view of the wheelchair testing device of the present invention.

Fig. 6 is a structural view of a slope door of the wheelchair testing apparatus of the present invention.

In the figure, a frame 100, a first support plate 110, a second support plate 120, a quick clamp 130, a handle 141, a first gear 142, a second gear 143, a movable gear 144, a fixed gear 145, a transmission rack 150, a guide device 160, a transmission screw 170, a rotating roller 200, a movable roller 210, a movable roller gear 211, a fixed roller 220, a fixed roller motor 221, an impact protrusion 230, a wheelchair 300, a traction motor 410, a steering wheel 420 and a slope door 500 are arranged.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1, the embodiment specifically includes: the jolt testing machine is provided with a rack 100, two rotating rollers 200, a rolling table top, a motor and an adjusting device are arranged below the rack 100, the rolling table top is provided with first supporting plates 110 and a testing gap located between the first supporting plates 110, the two rotating rollers 200 are arranged in the testing gap, the motor is connected with the rotating rollers 200 and used for driving the rotating rollers 200 to rotate in the testing gap, a second supporting plate 120 is arranged below the first supporting plates 110 and used for supporting the rotating rollers 200, the adjusting device is arranged on one side of the rolling table top and movably connected with the two rotating rollers 200 and used for adjusting the distance between the two rotating rollers 200, and impact protrusions 230 are distributed on the peripheries of the two rotating rollers 200. In the scheme, the wheelchair 300 is placed above the two rotating rollers 200 in the inner side of the rack 100, the two rotating rollers 200 are driven by the motor to rotate, the impact protrusions 230 arranged on the rotating rollers 200 start to impact the wheelchair 300 above the impact protrusions, and the impact condition can simulate the bumping condition of the wheelchair 300 when encountering obstacle road conditions, so that the performance parameters of the wheelchair 300 under the bumping test can be provided, and the test and evaluation accuracy of the wheelchair 300 can be improved.

As shown in fig. 2 and 3, a supporting seat is provided, the rotary roller 200 is installed on the rolling table through the supporting seat, the rotation of the rotary roller 200 on the supporting seat is realized through a motor, the rotary roller 200 is close to one side of the adjusting device is provided with a transmission screw rod 170 connected with the supporting seat, the adjusting device is provided with a handle 141 connected with the transmission screw rod 170, the rotary roller 200 is close to the adjusting device and is provided with a movable roller gear 211, the movable roller gear 211 is connected with the supporting seat and movably connected with the transmission screw rod, and the rotary roller 200 is driven by the handle 141 to move horizontally on the supporting seat.

The above scheme may further be: the impact protrusions 230 are disposed along the length direction of the rotating roller 200 and are uniformly distributed on the rotating roller in a rectangular parallelepiped shape.

The above scheme may further be: scales corresponding to the centers of the two rotary rollers 200 are arranged below the frame 100 and used for assisting in observing the distance between the two rotary rollers 200; on the basis of through gear, rack adjustment mode, this scheme further provides the scale design, because current wheelchair 300 device has the specification of multiple equidimension not, the interval between each runner is different in wheelchair 300, and the utility model discloses well jolt contact's object should be corresponding runner, when putting into wheelchair 300 and adjusting again, the wheelchair 300 gravity that increases on the commentaries on classics roller 200 often can increase the frictional force between the adjusting device, especially when wheelchair 300's weight is great, the degree of difficulty of adjusting the interval also can increase, consequently, adjusting device's regulation should be before wheelchair 300 puts into, and this kind of regulation is the runner that correctly corresponds wheelchair 300 in advance, consequently, the scale that increases can make the apparent acquisition of operating personnel after obtaining wheelchair 300's specification and adjust the interval between two commentaries on classics rollers 200 well.

As shown in fig. 4, the above scheme may further be: the two rotating rollers 200 are movable rollers 210 and fixed rollers 220, the movable rollers 210 are movably connected to the second supporting plate 120, the fixed rollers 220 are fixedly connected to the second supporting plate 120, and the zero point pairs of the scales are located on the central axis of the fixed rollers 220. For further reducing the degree of difficulty of adjusting, the utility model discloses further reduce the commentaries on classics roller 200 quantity of adjusting, only need adjust one of them commentaries on classics roller 200 and be movable roller 210, rotate lead screw 142 through handle 141, drive movable roller 210 and at the removal of second backup pad, only need remove a live-rollers and adjust the interval promptly, adjust the dynamics and need not to increase.

Further, a fixed roller motor 221 is disposed on the fixed roller 220 and is used for driving the fixed roller 220 to rotate, and the fixed gear 145 connected to the fixed roller 220 is respectively connected to the first gear 142, the second gear 143, and the movable gear 144 through the rack 150, so as to drive the movable roller 210 to rotate. The utility model discloses in, the name of characteristic is retainer roll 220, but fixed in retainer roll 220 indicates that retainer roll 220 does not have horizontal displacement in second backup pad 120, changes the upset of roller 200 on same position, realizes that single motor drives two rotations of changeing roller 200.

Example 2

As shown in fig. 5, based on embodiment 1, embodiment 2 shows another technical solution: a wheelchair 300 testing device comprises the jolt testing machine, wherein two rotating rollers 200 are used for conducting jolt testing on the wheelchair 300 above a testing gap and a first supporting plate 110, and a binding device is arranged to limit the wheelchair 300 in a binding mode. In the scheme, the position of the wheelchair 300 is often changed due to the impact effect of the impact protrusions 230, so that the experiment is not sustainable, and therefore, a binding device for binding the wheelchair 300 is further added to limit the shaking displacement of the wheelchair 300 on a jolt.

The above scheme may further be: a slope door 500 and a control device for controlling the opening and closing of the slope door are arranged on one side of the rack 100, and the control device controls the slope door 500 to be opened to form a slope on one side of the rack 100. For the operation of putting of convenience wheelchair 300, the utility model discloses the slope door 500 in frame 100 one side has further been increased for slope door 500 can be put on ground when opening one side, writes into the slope of direction, according to the rotation of wheelchair 300, makes things convenient for operating personnel to impel wheelchair 300 from the slope on the inboard commentaries on classics roller 200 of frame 100.

As shown in fig. 6, the above scheme may further be: a guide device 160 is fixedly connected to one side of the frame 100 close to the ramp door 500, and the outer side of the guide device 160 is arranged obliquely downwards relative to the surface where the first support plate 110 is located; in this scheme, when slope door 500 put down and form the slope, its rotation end with frame 100 both need overcome slope door 500 pivoted stress deformation, also need participate in slope door 500's bearing simultaneously, is unfavorable for the extension rotate the life of end structure, consequently, the utility model discloses a further set up guider 160, when slope door 500 fell down, guider 160's the outside end can further support slope door 500's gravity, reduces and is in rotate the last atress loss that serves.

As shown in fig. 3, the above scheme may further be: the frame 100 is provided with a movable rail and a quick clamp 130 for fixing the movable rail, and/or is provided with a counterweight body, and the counterweight body is placed and fixed on the wheelchair 300; in order to further increase the reference of the experimental test, the scheme further increases a counterweight body on the wheelchair 300, and a specific implementation mode can be that a square weight is added to be placed on a seat of the wheelchair 300 so as to simulate the situation that a human body sits on the wheelchair 300, thereby providing the reference of the test; the movable railings on the frame 100 are beneficial to binding the wheelchair 300 according to the shape of the wheelchair 300, so as to prevent the wheelchair 300 from falling out of the inner side of the frame 100.

The above scheme may further be: the binding device is a binding belt and is formed by winding the wheelchair 300 and the rack 100 or the movable railing, and/or a traction device is arranged, the traction device comprises a traction motor 410, a traction rope and a steering wheel 420, the motor is fixedly connected with the traction rope, the traction rope bypasses the steering wheel 420 and is fixedly connected with the wheelchair 300, and the wheelchair 300 is pulled to pass through the slope to be above the two rotating rollers 200 under the driving of the motor. In the scheme, the binding device is further designed as a binding belt, and the binding limit of the wheelchair 300 is realized by winding the structure of the wheelchair 300 and the structure of the railing or the rack 100 through the binding belt; and simultaneously, the utility model discloses consider especially to increase the difficulty that the wheelchair 300 of heavy object moved, further increased draw gear, drive the haulage rope through the motor and carry wheelchair 300 and advance slope and first backup pad 110 isotructures, reduced the degree of difficulty of test experiment.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a setting is in changeing protruding 230 of impact on the roller 200, come simulation wheelchair 300 and meetting the walking of jolting of obstacle road conditions, further increased the test parameter of wheelchair 300 under the condition of jolting, simultaneously the utility model discloses further through handle 141 and the structure interval between the two rollers of good advance adjustment, it rotates to drive two commentaries on classics rollers with single motor through the rack structure, save motor cost, and make the rotation between two rollers more harmonious, set up the human gravity on wheelchair 300 of counter weight body simulation, set up the promotion of traction rope structure replacement manual work to wheelchair 300, the position that sets up the further constraint wheelchair 300 of constraint area structure makes it can not take place the test process that obvious skew influences the experiment, finally acquire the performance parameter of wheelchair 300 after the test of jolting, if the stability of wheelchair 300 structure-whether the walking wheel has obvious not hard up, whether the heavy object on the seat can fall, or whether the deformation of seat can be accepted etc.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (9)

1. The jolt testing machine is provided with a rack, two rotating rollers, a rolling table top, a motor and an adjusting device are arranged below the rack, the rolling table top is provided with first supporting plates and a testing gap located between the first supporting plates, the two rotating rollers are arranged in the testing gap, at least part of the rotating roller surface protrudes out of the first supporting plates, the motor is connected with the rotating rollers and used for driving the rotating rollers to rotate in the testing gap, a second supporting plate is arranged below the first supporting plates and used for supporting the rotating rollers, the adjusting device is arranged on one side of the rolling table top and movably connected with the two rotating rollers and used for adjusting the distance between the two rotating rollers, and the jolt testing machine is characterized in that impact protrusions are distributed on the peripheries of the two rotating rollers.

2. The jounce testing machine as claimed in claim 1, wherein a support base is provided, the roller is mounted on the rolling table via the support base, the rotation of the roller on the support base is achieved by a motor, a driving screw rod connected to the support base is provided on a side of the roller adjacent to the adjusting device, and the adjusting device is provided with a handle connected to the driving screw rod.

3. The jounce testing machine according to claim 1, wherein a scale corresponding to the center of the two rolls is provided below the frame to assist in observing the distance between the two rolls.

4. The jolt testing machine of claim 3, wherein the two rotating rolls are a movable roll and a fixed roll, the movable roll is movably connected to the second support plate, the fixed roll is fixedly connected to the second support plate, and the zero point of the scale is located at the central axis of the fixed roll.

5. A wheelchair testing device comprising the bump tester as claimed in any one of claims 1 to 4, wherein two rotating rollers perform bump testing of the wheelchair above the test gap and the first support plate, and a restraining device is provided to achieve restraint limit of the wheelchair.

6. A wheelchair testing device as claimed in claim 5, wherein a slope door and a control device for controlling the opening and closing of the slope door are arranged on one side of the frame, and the control device controls the slope door to open to form a slope on one side of the frame.

7. A wheelchair testing device as claimed in claim 6, wherein a guide means is fixedly connected to the side of the frame adjacent to the ramp door, and the outer side of the guide means is disposed obliquely downwards relative to the side of the first support plate.

8. A wheelchair testing arrangement as claimed in claim 6 or 7, wherein the frame is provided with a movable rail and a snap-in clip for securing the movable rail.

9. A wheelchair testing apparatus as claimed in claim 8, wherein the restraining means is a restraining belt for restraining the wheelchair from being wound around the frame or movable rail and/or a traction device is provided, the traction device comprises a traction motor, a traction rope and a steering wheel, the motor is fixedly connected with the traction rope, the traction rope is wound around the steering wheel and fixedly connected with the wheelchair, and the wheelchair is pulled over the slope to above the two rollers under the driving of the motor.

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