CN218272520U

CN218272520U - Treadmill testing arrangement

Info

Publication number: CN218272520U
Application number: CN202221650601.3U
Authority: CN
Inventors: 黄坤平; 李文嵩; 彭星伟
Original assignee: Beijing Kingsmith Technology Co Ltd
Current assignee: Beijing Kingsmith Technology Co Ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2023-01-10
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a treadmill testing device, which is used for testing a treadmill and comprises a rotatable roller, wherein the surface of the roller is provided with elastically telescopic contacts which are arranged on the side surface of the roller at intervals along the circumferential direction of the roller; the contact is connected with the running belt of the treadmill in turn, and the roller rotates along with the movement of the running belt. The utility model discloses a treadmill testing arrangement, through the contact that the interval set up on the cylinder, intermittent type nature and race take the contact, the contact in simulation step and race area to make the current-voltage periodic variation of treadmill, the continuous periodic variation of in-process current-voltage that the anthropomorphic dummy runs at the uniform velocity is to the wearing and tearing of treadmill.

Description

Treadmill testing arrangement

Technical Field

The utility model relates to a test of treadmill is examined and is tested and is equipped with, especially relates to a treadmill testing arrangement.

Background

The treadmill is a high-grade apparatus for gymnasiums and families, and the treadmill drives a running belt through a motor to enable a person to run or walk passively at different speeds. The running and walking are passively formed, so that the running and walking on the treadmill is almost the same as the ordinary running or walking on the ground in terms of the action appearance, but the pedaling and stretching action is omitted in comparison with the ordinary running and walking in terms of the human body exertion. The person who runs on the treadmill can feel very relaxed and free, can run 1/3 of the way more than the ordinary running person, and has more energy consumption than the ordinary running person.

In a production enterprise of the running machine, life tests are required for production and research of new products of the running machine to ensure the quality of the running machine, an original operation method of the running machine is that people are used for the life tests, personnel tests need to be performed by multiple people in turn because the test time is longer, and the operation cannot be performed continuously for 24 hours. The cost investment is more in the testing link. Therefore, the production enterprises begin to adopt the automobile tires for testing and can continuously and uninterruptedly operate.

However, in the test process, the current and the voltage of the treadmill are constant by adopting a tire test, and are different from the current and the voltage which are suddenly increased and suddenly decreased when a person actually runs. Therefore, the method cannot completely simulate the wear verification of the electric appliance part caused by the continuous change of the current and the voltage in the use process of a human. Moreover, when the tire is used for testing a part of the running plate of the running belt at a high speed for a long time, permanent abrasion of parts is caused, and a large difference exists between the permanent abrasion and the abrasion of the parts caused by running of a person, so that the purpose of testing cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a treadmill testing arrangement simulates the process of human running, can solve the great problem of test conclusion and actual in service behavior gap. The specific technical scheme is as follows:

a treadmill testing device is used for testing a treadmill and comprises a rotatable roller, wherein the surface of the roller is provided with elastic telescopic contacts which are arranged on the side surface of the roller at intervals along the circumferential direction of the roller; the contact is connected with the running belt of the treadmill in turn along with the rotation of the roller along with the movement of the running belt.

Further, the contact comprises a left contact and a right contact, the left contact and the right contact are respectively located at two end portions of the roller, and the left contact and the right contact are alternately arranged along the circumferential direction of the roller.

Furthermore, the roller is prism-shaped, the side surface forms a mounting plane, and each mounting plane is provided with one contact.

Furthermore, an elastic part is arranged between the contact and the roller, so that the contact elastically stretches relative to the roller to buffer the impact force of the contact and the running belt.

Furthermore, a mounting seat is formed on the roller, an insertion hole is formed in the mounting seat along the radial direction of the roller, and a sliding rod inserted into the insertion hole is formed on the contact; the elastic piece is a spring which is sleeved outside the sliding rod, so that the spring is clamped between the contact and the bottom surface of the jack.

Furthermore, one side of the contact, which is far away from the roller, forms a spherical surface, and the spherical surface is used for contacting with the running belt.

Furthermore, the roller is rotatably arranged on the lifting device, and the lifting device drives the roller to lift, so that the roller is contacted with the running belt of the treadmill.

Furthermore, elevating gear includes the support, is equipped with the lifter plate of liftable on the support, and the cylinder rotates with the lifter plate to be connected.

Further, the support is in threaded connection with a screw, the end of the screw is rotatably connected with a base plate, and the base plate is connected with the lifting plate; the base plate and the lifting plate are driven to lift through the rotation of the screw rod.

Furthermore, a pressure sensor is arranged between the base plate and the lifting plate.

The utility model discloses a treadmill test device has following advantage:

1. the contact of the running belt is intermittently contacted through the contacts arranged on the roller at intervals, so that the contact of the steps and the running belt is simulated, the current and voltage of the treadmill periodically change, and the continuous periodic change of the current and voltage in the process of running at constant speed of a human is simulated to abrade the treadmill;

2. the left contact simulates a left foot, the right contact simulates a right foot, and the left contact and the right contact are alternately arranged along the circumferential direction of the roller, so that the left foot and the right foot are alternately trodden on the running belt in a simulation manner, the left contact and the right contact are not only close to the running process of the left foot and the right foot on the running belt, but also fall on the left side of the running belt in a simulation manner, and the right contact falls on the right side of the running belt.

Drawings

Fig. 1 is a schematic view of the detection of the treadmill test device of the present invention;

FIG. 2 is a schematic structural view of a treadmill test device of the present invention;

FIG. 3 is a schematic view of the structure of the roller in the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic structural view of the lifting device of the present invention;

fig. 6 is an enlarged view of a portion B of fig. 5.

The notation in the figure is:

1. a treadmill; 11. running the belt; 2. a drum; 21. a mounting seat; 211. a jack; 22. a rotating shaft; 3. a contact; 31. a left contact; 32. a right contact; 33. a slide bar; 34. spherical surface; 4. a spring; 5. a support; 51. a sleeve; 52. reinforcing ribs; 6. a screw; 61. a rocking handle; 62. a substrate; 7. a lifting plate; 71. a bearing seat; 72. a bearing; 8. a pressure sensor; 9. and (4) bolts.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Those skilled in the art will appreciate that although some embodiments herein include some features included in other embodiments instead of others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

As shown in fig. 1 and 2, the utility model discloses a treadmill testing arrangement for test treadmill 1, including rotatable cylinder 2, cylinder 2 is provided with elastic expansion's contact 3 on the surface, and contact 3 sets up in the side of cylinder 2 along 2 circumference intervals of cylinder, rotates along with the motion of running area 11 of cylinder 2, and contact 3 in proper order with the running area 11 butt of treadmill 1. Thus, the contact 3 simulates the footstep and is intermittently contacted with the running belt 11, so that the current voltage of the running machine 1 changes periodically, and the abrasion of the running machine 1 caused by the continuous periodic change of the current voltage in the process of running at a constant speed of a human is simulated.

And the contact 3 includes a left contact 31 and a right contact 32, the left contact 31 and the right contact 32 are respectively located at two ends of the roller 2, and the left contact 31 and the right contact 32 are alternately arranged along the circumference of the roller 2, that is, every time the roller 2 rotates a certain angle, the left contact 31, the right contact 32 and the left contact 31 are contacted with the running belt 11. Therefore, the left contact 31 simulates the left foot, the right contact 32 simulates the right foot, and because the left contact 31 and the right contact 32 are alternately arranged along the circumferential direction of the roller 2, the simulation of the left foot and the right foot alternately trampling on the running belt 11 is close to the running process of the left foot and the right foot of a person on the running belt 11, and because the left contact 31 falls on the left side of the running belt 11 and the right contact 32 falls on the right side of the running belt 11, permanent abrasion of parts cannot be caused even if the running belt is subjected to running test at high speed for a long time, and the caused abrasion is also close to the abrasion of the parts caused by running of the person.

As shown in fig. 3, the drum 2 may be a cylinder or a prism. Considering that the side surface of the cylinder is an arc surface, the contact 3 is not easy to be installed. The cylinder 2 is therefore preferably prismatic, and may generally be in the form of an octagonal cylinder, the sides of the cylinder 2 forming mounting planes, each mounting plane being fitted with a respective contact 3. Because the angular separation of adjacent contact 3 can simulate the step pitch of different people, consequently, cylinder 2 should be the regular prism, and stupefied number and diagonal degree are decided by the step pitch of anthropomorphic dummy moreover, can carry out corresponding adjustment according to the test demand, and this embodiment is no longer repeated.

As shown in fig. 4, in order to provide the contact 3 with good elasticity, a mounting seat 21 is formed on the mounting plane of the drum 2, the mounting seat 21 is formed with an insertion hole 211 arranged along the radial direction of the drum 2, and the contact 3 is formed with a slide lever 33 inserted into the insertion hole 211. The slide rod 33 is externally provided with a spring 4, so that the spring 4 is clamped between the contact 3 and the bottom surface of the jack 211. Thus, the spring 4 is sandwiched between the contact 3 and the roller 2 as an elastic member, and elastically expands and contracts the contact 3 with respect to the roller 2 to buffer the impact of the contact 3 with the running belt 11. The contact 3 is made of elastic material such as rubber, and has elasticity, so that the impact force of the contact 3 contacting with the running belt 11 can be buffered. Thus, the elasticity of the contact 3 and the external elasticity of the elastic piece are superposed, so that the impact damage of the contact 3 to the running belt 11 is prevented, and the buffering effect of the shoes on the feet of a person is simulated.

And the side of the contact 3 far away from the roller 2 forms a spherical surface 34, and the spherical surface 34 is used for contacting with the running belt 11, thereby preventing the contact 3 from scratching the running belt 11 in the moving process.

Referring to fig. 5 and 6, in order to allow the roller 2 to contact and separate from the running belt 11 of the treadmill 1, the roller 2 is rotatably installed on a lifting device, and the lifting device lifts the roller 2 to allow the roller 2 to contact the running belt 11 of the treadmill 1.

The lifting device comprises a support 5, a lifting plate 7 capable of lifting is arranged on the support 5, and the roller 2 is rotatably connected with the lifting plate 7. In order to balance the force applied to the roller 2, the bracket 5 is gantry-type, and includes two side frames and a connecting frame connecting the tops of the two side frames, so that the bracket 5 is arranged across the running belt 11 of the running machine 1. Two sides of the two side frames or the two sides of the bracket 5 are respectively provided with a lifting plate 7. Thus, the lifting plates 7 are symmetrically arranged at the two ends of the roller 2 and are used for erecting the two ends of the roller 2, so that the rotation balance of the roller 2 is ensured.

Specifically, a bearing seat 71 is installed on the lifting plate 7, a bearing 72 is sleeved in the bearing seat 71, and a rotating shaft 22 inserted into the bearing 72 is formed at both ends of the drum 2, so that the drum 2 is rotatably connected with the lifting plate 7. Of course, the bearing seat 71 can be installed on the roller 2, and the rotating shaft 22 can be installed on the lifting plate 7, and the effect of the rotary connection can be achieved.

In order to install the lifting plate 7 and drive the lifting plate 7 to lift, a sleeve 51 is arranged on the bracket 5, a screw 6 is connected in the sleeve 51 in a threaded manner, a base plate 62 is connected to the end of the screw 6 in a rotating manner, and the base plate 62 is connected with the lifting plate 7, so that the base plate 62 and the lifting plate 7 are driven to lift through the rotation of the screw 6. The end of the screw 6 far away from the base plate 62 is provided with a rocking handle 61, and the moment is increased through the rocking handle 61 so as to drive the screw 6 to rotate. Because the lifting plate 7 is provided with two, the screw rods 6 are also arranged corresponding to the lifting plate 7, and one set of screw rods 6 drives one lifting plate 7 to lift.

And reinforcing ribs 52 are arranged on two sides of the sleeve 51, one end of each reinforcing rib 52 is connected with the support 5, and the other end of each reinforcing rib 52 is connected with the sleeve 51, so that the strength of the sleeve 51 is enhanced, and the joint of the sleeve 51 and the support 5 is prevented from being damaged.

A pressure sensor 8 is also mounted between the base plate 62 and the lifting plate 7 to detect the pressure to which the drum 2 is subjected. The pressure sensor 8 is provided with bolts 9 around the periphery thereof, and the bolts 9 bolt the base plate 62 and the lifting plate 7, thereby clamping the pressure sensor 8 between the base plate 62 and the lifting plate 7. The bolt 9 should not be tightened too tightly to prevent interference with the normal operation of the pressure sensor 8.

The working process is as follows:

simultaneously, the rocking handles 61 at the two ends of the roller 2 are rotated, and the corresponding screw 6 is rotated through the rocking handles 61, so that the screw 6 spirally descends along the sleeve 51. Since the base plate 62 and the screw 6 are rotatably connected, the base plate 62 is merely lifted and does not rotate. Thus, the two base plates 62 are simultaneously lowered and drive the lifting plate 7 to lift, so that the contact 3 of the roller 2 is pressed on the running belt 11 of the running machine 1. The running machine 1 is started, the roller 2 moves along with the running belt 11, the pressure sensor 8 detects the pressure applied to the roller 2, and the state of the running machine 1 can be detected, so that more real test data can be obtained.

In addition, a motor can be additionally arranged on the lifting plate 7, so that the roller 2 has the function of active rolling, and the speed of the roller 2 and the speed of the running belt 11 have a certain difference value, thereby further simulating the running state of a human.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A treadmill testing device is used for testing a treadmill and is characterized by comprising a rotatable roller, wherein the surface of the roller is provided with elastically telescopic contacts which are arranged on the side surface of the roller at intervals along the circumferential direction of the roller; the contact is connected with the running belt of the treadmill in turn along with the rotation of the roller along with the movement of the running belt.

2. The treadmill test device of claim 1, wherein the contacts comprise left and right contacts, the left and right contacts being positioned at respective ends of the drum, the left and right contacts being alternately arranged along a circumference of the drum.

3. The treadmill test device of claim 1, wherein the roller is prismatic and has side surfaces defining mounting planes, each mounting plane having a respective contact mounted thereto.

4. The treadmill test device of claim 1, wherein a spring is disposed between the contact and the roller to cause the contact to elastically expand and contract relative to the roller to cushion the impact of the contact with the tread belt.

5. The treadmill test device of claim 4, wherein the roller is formed with a mounting seat, the mounting seat is formed with a receptacle disposed along a radial direction of the roller, and the contact is formed with a slide bar inserted into the receptacle; the elastic part is a spring which is sleeved outside the sliding rod, so that the spring is clamped between the contact and the bottom surface of the jack.

6. A treadmill test device as recited in claim 1, wherein the side of the contact distal from the roller forms a spherical surface for contacting the tread belt.

7. The treadmill test device of claim 1, wherein the roller is rotatably mounted to a lifting device, the lifting device causing the roller to lift and lower such that the roller contacts a tread belt of the treadmill.

8. The treadmill test device of claim 7, wherein the lifting device comprises a frame having a lifting plate that is configured to be raised and lowered, the roller being rotatably coupled to the lifting plate.

9. The treadmill test device of claim 8, wherein the frame is threadably coupled to a screw, an end of the screw is rotatably coupled to a base plate, and the base plate is coupled to the lift plate; the base plate and the lifting plate are driven to lift through the rotation of the screw rod.

10. The treadmill test device of claim 9, wherein a pressure sensor is mounted between the base plate and the lift plate.