CN211877390U

CN211877390U - Office chair castor durability testing machine

Info

Publication number: CN211877390U
Application number: CN202020495602.XU
Authority: CN
Inventors: 许秀真
Original assignee: Xuzhou Lingxiu Furniture Co ltd
Current assignee: Xuzhou Lingxiu Furniture Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-11-06
Anticipated expiration: 2030-04-08

Abstract

The utility model discloses an official working chair truckle durability testing machine, comprises a workbench, the workstation passes through the support column and is connected with the crossbeam, install hydraulic rod on the crossbeam, hydraulic rod's piston rod is connected with the laboratory sheet, laboratory sheet one side is connected with the slide, sliding connection has the sliding block in the slide, one side of sliding block is connected with fixed connecting rod, install the truckle on the fixed connecting rod, one side of sliding block is rotated and is connected with movable connecting rod, movable connecting rod's one end is rotated and is connected with the rotor plate, install the truckle on the rotor plate, install electric putter on the laboratory sheet, electric putter's piston rod is connected with the sliding block. The utility model discloses a durability test that the truckle of two sets of linear motion tests and the truckle of two sets of curvilinear motion tests carried out the truckle together can make more convincing nature of test result, has improved the accuracy of test result.

Description

Office chair castor durability testing machine

Technical Field

The utility model relates to a truckle durability detects technical field, specifically is an office chair truckle durability test machine.

Background

The durability test is a test performed to measure the service life of a product under a predetermined use and maintenance condition and predict or verify weak links and dangerous portions of a structure. The endurance test is generally longer than the reliability test, and through the endurance test, which parts in the product design and manufacture have problems in reliability so as to improve the design or improve the process level, and meanwhile, the service life of a new product can be calculated by measuring the abrasion loss change of a main part.

Most of the existing office chair caster durability testing machines are used for detecting the caster wheels on a single moving track, are difficult to carry out moving detection on different tracks and are easy to cause deviation on the durability detection result of the office chair caster wheels. Therefore, it is desirable to provide an office chair caster durability tester to solve the above technical problems.

Disclosure of Invention

An object of the utility model is to provide an office chair truckle durability testing machine carries out the durability test of truckle through the truckle of two sets of linear motion tests and the truckle of two sets of curvilinear motion tests together, can make more persuasive nature of test result, has improved the accuracy of test result to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a durability testing machine for office chair casters comprises a workbench, wherein the upper end of the workbench is connected with a cross beam through a strip-shaped support column, a hydraulic push rod is fixedly arranged at the upper end of the cross beam, one end of a piston rod of the hydraulic push rod penetrates through a through hole formed in the surface of the cross beam and is fixedly connected with the upper end of a strip-shaped experiment board, a slide seat is fixedly connected with one side of the experiment board, a second slide groove is formed in the slide seat, a square sliding block is slidably connected in the second slide groove, first slide grooves are formed in two sides of the slide seat, columnar slide rods are fixedly connected to two sides of the sliding block, one end of each slide rod is slidably connected with the first slide groove, a fixed connecting rod is fixedly connected to one side of each slide block, first connecting blocks are fixedly connected to two sides of the fixed connecting rod, and casters are fixedly mounted on one side of each, one side of sliding block rotates through the fixed pin and is connected with banding movable connecting rod, movable connecting rod's one end rotates through the fixed pin and is connected with the rotor plate, the middle part of rotor plate is passed through the fixed pin and is connected with the face rotation of experiment board, fixedly connected with second connecting block on the face of rotor plate, the second connecting block has the truckle through bolt fixed mounting, just fixedly mounted has electric putter on the face of experiment board, one side fixed connection of one end of electric putter's piston rod and sliding block.

Preferably, the bottom of the workbench is fixedly connected with supporting legs, and the supporting legs are four groups.

Preferably, the bottom of the cross beam is fixedly connected with two groups of strip-shaped guide pillars, two groups of round guide holes are formed in the surface of the experimental plate, and one ends of the guide pillars are in sliding insertion connection with the guide holes.

Preferably, the slide is set to be rectangular, square limiting blocks are fixedly connected to the inner bottom surface of the second sliding groove, and the limiting blocks are symmetrically set to be four groups.

Preferably, the rotating plate is formed by a semicircular plate and a strip plate, and the caster is fixedly installed on the semicircular plate side of the rotating plate.

Preferably, the truckles are arranged into four groups, two groups of truckles are fixedly installed on one side of the fixed connecting rod, and two groups of truckles are fixedly installed on one side of the rotating plate.

Compared with the prior art, the beneficial effects of the utility model are that: the truckle through two sets of rectilinear motion tests and the truckle of two sets of curvilinear motion tests carry out the durability test of truckle together, can make test result more convincing nature, have improved the accuracy of test result.

Drawings

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

FIG. 2 is a schematic structural view of the experiment board of the present invention showing the state where the electric push rod is not in operation;

fig. 3 is the structure diagram of the working state of the electric push rod on the experimental board.

In the figure: 1. a work table; 2. supporting legs; 3. a support pillar; 4. a cross beam; 5. a hydraulic push rod; 6. a guide post; 7. an experimental plate; 8. a guide hole; 9. a slide base; 10. a slider; 11. a slide bar; 12. a first chute; 13. a second chute; 14. a limiting block; 15. fixing the connecting rod; 16. a first connection block; 17. a movable connecting rod; 18. a rotating plate; 19. a second connecting block; 20. a caster wheel; 21. an electric push rod.

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. 1-3, the present invention provides a technical solution: a durability testing machine for office chair casters comprises a workbench 1, the upper end of the workbench 1 is connected with a cross beam 4 through a strip-shaped support column 3, the upper end of the cross beam 4 is fixedly provided with a hydraulic push rod 5, one end of a piston rod of the hydraulic push rod 5 passes through a through hole formed on the surface of the cross beam 4 and is fixedly connected with the upper end of a strip-shaped experiment board 7, one side of the experiment board 7 is fixedly connected with a slide seat 9, the interior of the slide seat 9 is provided with a second slide groove 13, a square sliding block 10 is connected in the second slide groove 13 in a sliding manner, two sides of the slide seat 9 are provided with first slide grooves 12, two sides of the sliding block 10 are fixedly connected with a columnar sliding rod 11, one end of the sliding rod 11 is connected with the first slide groove 12 in a sliding manner, one side of the sliding block 10 is fixedly connected with a fixed connecting rod 15, two sides of the fixed connecting rod 15, one side of sliding block 10 rotates through the fixed pin and is connected with banding movable connecting rod 17, movable connecting rod 17's one end rotates through the fixed pin and is connected with rotor plate 18, the middle part of rotor plate 18 is passed through the fixed pin and is rotated with the face of experiment board 7 and be connected, fixedly connected with second connecting block 19 on rotor plate 18's the face, second connecting block 19 has truckle 20 through bolt fixed mounting, and fixedly mounted has electric putter 21 on the face of experiment board 7, the one end of electric putter 21's piston rod and one side fixed connection of sliding block 10.

In actual implementation: the bottom of the workbench 1 is fixedly connected with four groups of supporting legs 2, and the supporting legs 2 are used for providing stable support for the device during test operation; the bottom of the cross beam 4 is fixedly connected with two groups of strip-shaped guide posts 6, the surface of the experimental plate 7 is provided with two groups of round guide holes 8, and one ends of the guide posts 6 are in sliding insertion connection with the guide holes 8 and used for assisting the movement of the experimental plate 7 and improving the stability during the movement; the sliding seat 9 is rectangular, the inner bottom surface of the second sliding groove 13 is fixedly connected with square limiting blocks 14, and the limiting blocks 14 are symmetrically arranged into four groups and used for providing safety guarantee for the sliding blocks 10 which slide; the rotating plate 18 is composed of a semicircular plate and a strip plate, and the caster 20 is fixedly arranged on the semicircular plate side of the rotating plate 18 and used for enabling the caster 20 arranged on the rotating plate 18 to move in a curve when the rotating plate 18 rotates; the truckles 20 are set to four groups, two groups of truckles 20 are fixedly installed on one side of the fixed connecting rod 15, two groups of truckles 20 are fixedly installed on one side of the rotating plate 18, and the accuracy of the test result can be improved by comparing the multiple groups of test of the truckles 20.

The working principle is as follows: hydraulic rod 5 is started, the trundle 20 of installation can be promoted on the experiment board 7 by hydraulic rod 5's piston rod and falls on workstation 1's test panel, start electric putter 21, electric putter 21's piston rod promotes sliding block 10 linear motion in slide 9, linear motion's sliding block 10 drives fixed connecting rod 15 linear motion, linear motion's fixed connecting rod 15 makes fixed mounting trundle 20 at this place linear motion on workstation 1's test panel, linear motion's sliding block 10 drives the crank link mechanism work of constituteing together by movable connecting rod 17 and rotor plate 18 simultaneously, make rotor plate 18 rotate, pivoted rotor plate 18 makes the trundle 20 of here installation curve motion on workstation 1's test panel, electric putter 21 reciprocates drive sliding block 10 and removes and can carry out the durability test of trundle 20 so.

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 an office chair truckle durability test machine, includes workstation (1), its characterized in that: the upper end of the workbench (1) is connected with a cross beam (4) through a strip-shaped support column (3), a hydraulic push rod (5) is fixedly mounted at the upper end of the cross beam (4), one end of a piston rod of the hydraulic push rod (5) penetrates through a through hole formed in the surface of the cross beam (4) and is fixedly connected with the upper end of a strip-shaped experiment plate (7), a sliding seat (9) is fixedly connected with one side of the experiment plate (7), a second sliding groove (13) is formed in the sliding seat (9), a square sliding block (10) is slidably connected in the second sliding groove (13), first sliding grooves (12) are formed in two sides of the sliding seat (9), columnar sliding rods (11) are fixedly connected to two sides of the sliding block (10), one end of each sliding rod (11) is slidably connected with the first sliding groove (12), and a fixed connecting rod (15) is fixedly connected to one side of each sliding block (10), the utility model discloses a test experiment plate, including the first connecting block of both sides fixedly connected with (16) of fixed connecting rod (15), there is truckle (20) one side of first connecting block (16) through bolt fixed mounting, one side of sliding block (10) is rotated through the fixed pin and is connected with banding movable connecting rod (17), the one end of movable connecting rod (17) is rotated through the fixed pin and is connected with rotor plate (18), the middle part of rotor plate (18) is passed through the fixed pin and is rotated with the face of experiment board (7) and be connected, fixedly connected with second connecting block (19) on the face of rotor plate (18), second connecting block (19) have truckle (20) through bolt fixed mounting, just fixedly mounted has electric putter (21) on the face of experiment board (7), one end of the piston rod of electric putter (21) and one side fixed connection of sliding block (10).

2. The office chair caster durability testing machine as claimed in claim 1, wherein: the bottom of the workbench (1) is fixedly connected with supporting legs (2), and the supporting legs (2) are arranged into four groups.

3. The office chair caster durability testing machine as claimed in claim 1, wherein: the bottom of the cross beam (4) is fixedly connected with two groups of strip-shaped guide posts (6), the surface of the experimental plate (7) is provided with two groups of round guide holes (8), and one end of each guide post (6) is in sliding insertion connection with each guide hole (8).

4. The office chair caster durability testing machine as claimed in claim 1, wherein: the sliding seat (9) is rectangular, a square limiting block (14) is fixedly connected to the inner bottom surface of the second sliding groove (13), and the limiting blocks (14) are symmetrically arranged into four groups.

5. The office chair caster durability testing machine as claimed in claim 1, wherein: the rotating plate (18) is composed of a semicircular plate and a strip plate, and the caster (20) is fixedly installed on the semicircular plate side of the rotating plate (18).

6. The office chair caster durability testing machine as claimed in claim 1, wherein: the caster wheels (20) are arranged into four groups, two groups of caster wheels (20) are fixedly mounted on one side of the fixed connecting rod (15), and two groups of caster wheels (20) are fixedly mounted on one side of the rotating plate (18).