CN209894669U

CN209894669U - Portable friction parameter tester for tennis court floor paving material

Info

Publication number: CN209894669U
Application number: CN201822170139.7U
Authority: CN
Inventors: 钱俊
Original assignee: Jiangsu Zhongzheng Detection Co Ltd
Current assignee: Jiangsu Zhongzheng Detection Co Ltd
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2020-01-03
Anticipated expiration: 2028-12-24

Abstract

The utility model discloses a portable friction parameter tester for tennis court floor surface materials, which comprises a floor, wherein the upper side of the floor is provided with a hollow frame, a chute is arranged in the hollow frame, a pulley is arranged in the chute, a vertical rod is arranged at the upper side of the pulley, a first slide bar is arranged at the upper side of the vertical rod, a fixed sign pen is arranged at the upper side of the first slide bar, a first cavity is arranged in the hollow frame, a slide block is arranged in the first cavity, a right-angle rod is arranged at the upper side of the slide block, a first spring is sleeved at the outer side of the right-angle rod, a recording paper sheet is arranged at the upper side of the hollow frame and is limited at the lower side of the right-angle rod, the tester can measure the friction force under the pressure according to multiple, the measurement value is conveniently calibrated, and the tester converts the friction force into the elongation of the right, the measurement of the friction force is more convenient.

Description

Portable friction parameter tester for tennis court floor paving material

Technical Field

The utility model relates to a tester technical field specifically is a portable friction parameter tester of tennis court floor surface material.

Background

The force resisting the relative motion of the objects is called friction force, the direction of the friction force is opposite to the direction of the relative motion of the objects, the friction force is divided into static friction force, rolling friction and sliding friction, when one object slides on the surface of the other object, the friction resisting the relative motion of the objects is generated between contact surfaces and called sliding friction, the magnitude of the sliding friction force is related to the magnitude of the roughness of the contact surfaces and the magnitude of pressure, and the larger the pressure is, the rougher the object contact surfaces are, and the larger the generated sliding friction force is.

1. Because the friction is the force that hinders the relative motion of object, the friction on the tennis court is because the power on the horizontal plane, can't carry out the alternative measurement with friction and gravity for it is very inconvenient to measure.

2. Because the friction is only related to the pressure and the roughness, the friction can be measured more accurately only by changing the pressure for a plurality of experiments.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable friction parameter tester of tennis court floor surface material to solve the inaccurate problem of frictional force measurement.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a portable friction parameter tester of tennis court floor surface material, includes place ground, the upside on place ground is equipped with hollow frame, be equipped with the spout in the hollow frame, be equipped with the pulley in the spout, the upside of pulley is equipped with the pole setting, the upside of pole setting is equipped with first slide bar, the upside of first slide bar is equipped with fixed sign pen, be equipped with first cavity in the hollow frame, be equipped with the slider in the first cavity, the upside of slider is equipped with the right-angle bar, first spring has been cup jointed in the outside of right-angle bar, the upside of hollow frame is equipped with the record scraps of paper, the record scraps of paper are spacing in the downside of right-angle bar, the outside fixed connection of second slide bar is in the outside of first fixed block.

Preferably, the right side of the first sliding rod is provided with a pull ring, the left side of the first sliding rod is provided with a spring part, and the other end of the spring part is arranged on the outer side of the second sliding rod.

Preferably, the lower side of the recording paper sheet is in contact with the upper side of the fixed sign pen.

Preferably, be equipped with the second cavity in the first fixed block, be equipped with the second spring in the second cavity, the upside of second spring is equipped with the push pedal, the upside of push pedal is equipped with the inserted bar.

Preferably, a groove is formed in the first fixing block, a second fixing block is arranged in the groove, an insertion hole is formed in the second fixing block, and the insertion hole is matched with the insertion rod.

Compared with the prior art, the beneficial effects of the utility model are that: 1. this tester can carry out under the pressure that increases according to the multiple, measures frictional force, conveniently calibrates the measured value.

2. This tester converts frictional force into the elongation of spring part for frictional force's measurement is more convenient.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the point A of FIG. 1 according to the present invention;

fig. 3 is a schematic view of the connection of the fixing blocks of the present invention.

In the figure: the sign pen fixing device comprises a field ground 1, a hollow frame 21, a sliding groove 22, a pulley 23, a vertical rod 24, a first sliding rod 25, a fixed sign pen 26, a pull ring 27, a spring part 28, a second sliding rod 29, a first cavity 31, a sliding block 32, a right-angle rod 33, a first spring 34, a recording paper 4, a first fixing block 51, a second cavity 52, a second spring 53, a push plate 54, an insertion rod 55, a groove 56, a second fixing block 61 and an insertion hole 62.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious 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 work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution: a portable friction parameter tester for tennis court floor paving materials comprises a court floor 1, wherein an empty core frame 21 is arranged on the upper side of the court floor 1, a sliding groove 22 is formed in the empty core frame 21, a pulley 23 is arranged in the sliding groove 22, the pulley 23 slides in the sliding groove 22, the stability of the moving process of a first sliding rod 25 is ensured, an upright rod 24 is arranged on the upper side of the pulley 23, a first sliding rod 25 is arranged on the upper side of the upright rod 24, a fixed sign pen 26 is arranged on the upper side of the first sliding rod 25, the sign pen 26 can mark on a recording paper sheet 4, a first cavity 31 is formed in the empty core frame 21, a sliding block 32 is arranged in the first cavity 31, the sliding block 32 can slide in the first cavity 31, a right-angle rod 33 is arranged on the upper side of the sliding block 32, the recording paper sheet 4 can be fixed by the right-angle rod 33, a first spring 34 is sleeved on the outer side of the, the upside of hollow frame 21 is equipped with record scraps of paper 4, and record scraps of paper 4 are spacing in the downside of right angle pole 33, and the outside fixed connection in the outside of first fixed block 51 of second slide bar 29.

Referring to fig. 1, a pull ring 27 is disposed on the right side of the first sliding rod 25, the pull ring 27 can facilitate pulling the first sliding rod 25, a spring member 28 is disposed on the left side of the first sliding rod 25, the elastic coefficient of the spring member 28 is determined, and the other end of the spring member 28 is disposed on the outer side of the second sliding rod 29.

Referring to fig. 1, the lower side of the recording paper 4 is in contact with the upper side of the fixed sign pen 26, so that the marking is facilitated.

Referring to fig. 3, a second cavity 52 is formed in the first fixing block 51, a second spring 53 is formed in the second cavity 52, the second spring 53 is limited in the second cavity 52, a push plate 54 is disposed on an upper side of the second spring 53, the push plate 54 can slide along an inner wall of the first fixing block 51, an insertion rod 55 is disposed on an upper side of the push plate 54, and the insertion rod 55 is matched with the groove 56 to fix the first fixing block 51 and the second fixing block 61.

Referring to fig. 3, a groove 56 is formed in the first fixing block 51, the first fixing block 51 and the second fixing block 61 have the same mass, the second fixing block 61 is disposed in the groove 56, the bottom of the second fixing block 61 can slide in the groove 56, an insertion hole 62 is disposed in the second fixing block 61, and the insertion hole 62 is matched with the insertion rod 55.

The utility model discloses when concrete implementation: when the recording paper piece is used, the push plate 54 on the first fixed block 51 is pressed downwards to enable the second spring 53 to be compressed to drive the insertion rod 55 to be pulled out of the inner surface of the insertion hole 62, the second fixed block 61 is pulled out of the inner surface of the groove 56, the contact position of the second slide rod 29 and the hollow frame 21 is recorded, the pull ring 27 is pulled smoothly and slowly rightwards to enable the first slide rod 25 to slide in the hollow frame 21, the vertical rod 24 drives the pulley 23 to slide in the sliding groove 22 at the moment to enable the first slide rod 25 to move stably, the spring piece 28 deforms under the influence of friction force at the moment, the fixed sign pen 26 can draw a line segment on the recording paper piece 4, the first fixed block 51 is pulled to be close to the hollow frame 21 to stop pulling, the moving end point position of the second slide rod 29 is recorded, the length of the starting point and the end point position of the second slide rod 29 is measured, the right-angle rod 33 is pulled upwards to, at this time, the first spring 34 is compressed to enable the recording paper sheet 4 to be taken out, a new recording paper sheet 4 is put in again, the right-angle rod 33 is loosened to enable the first spring 34 to reset to drive the right-angle rod 33 to fix the recording paper sheet 4, the distance of the line segment on the recording paper sheet 4 is subtracted from the distance measured on the second sliding rod 29, the deformation quantity of the spring part 28 and the known elastic coefficient of the spring part 28 are calculated to obtain the friction force, the operations are carried out for a plurality of times, the push plate 54 on the first fixing block 51 is pushed downwards to enable the second spring 53 to compress to drive the inserting rod 55 to sink into the second cavity 52, the bottom of the second fixing block 61 slides in the groove 56, the push plate 54 is loosened until the second spring 53 resets to reinsert the inserting rod 55 into the inserting hole 62 to fix the second fixing block 61, and the operations are.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a portable friction parameter tester of tennis court ground surface material, includes place ground (1) and second slide bar (29), its characterized in that: a hollow frame (21) is arranged on the upper side of the field ground (1), a sliding chute (22) is arranged in the hollow frame (21), a pulley (23) is arranged in the chute (22), a vertical rod (24) is arranged on the upper side of the pulley (23), a first sliding rod (25) is arranged on the upper side of the upright rod (24), a fixed sign pen (26) is arranged on the upper side of the first sliding rod (25), a first cavity (31) is arranged in the hollow frame (21), a slide block (32) is arranged in the first cavity (31), a right-angle rod (33) is arranged on the upper side of the sliding block (32), a first spring (34) is sleeved on the outer side of the right-angle rod (33), a recording paper sheet (4) is arranged on the upper side of the hollow frame (21), the recording paper sheet (4) is limited on the lower side of the right-angle rod (33), the outer side of the second sliding rod (29) is fixedly connected to the outer side of the first fixing block (51).

2. The portable tennis court floor covering material friction parameter tester of claim 1, wherein: the right side of the first sliding rod (25) is provided with a pull ring (27), the left side of the first sliding rod (25) is provided with a spring piece (28), and the other end of the spring piece (28) is arranged on the outer side of the second sliding rod (29).

3. The portable tennis court floor covering material friction parameter tester of claim 1, wherein: the lower side of the recording paper sheet (4) is in contact with the upper side of the fixed sign pen (26).

4. The portable tennis court floor covering material friction parameter tester of claim 1, wherein: a second cavity (52) is arranged in the first fixing block (51), a second spring (53) is arranged in the second cavity (52), a push plate (54) is arranged on the upper side of the second spring (53), and an insertion rod (55) is arranged on the upper side of the push plate (54).

5. The portable tennis court floor covering material friction parameter tester of claim 1, wherein: be equipped with recess (56) in first fixed block (51), be equipped with second fixed block (61) in recess (56), be equipped with jack (62) in second fixed block (61), jack (62) and inserted bar (55) match each other.