CN219416687U - Dining chair leg durability test machine - Google Patents

Abstract

The utility model relates to the technical field of furniture testing, in particular to a dining chair leg durability testing machine which can limit and fix dining table legs, prevent the dining table legs from sliding in the shaking process, improve the stability in testing, simulate the state of dining staff sitting on a dining chair to shake left and right, and test the shearing force resistance of the joint of the chair legs and a seat and the chair legs; the device comprises a base, two support columns and a loading device, wherein the two support columns are symmetrically arranged at the top end of the base, and the loading device is arranged on the two support columns; still including rocking device and clamping device, rocking device slidable mounting is on the top of base, and the simulation dining personnel sits the state when rocking about on dining chair, and clamping device installs on the top of rocking device, carries out spacing fixed to dining table leg.

Description

Dining chair leg durability test machine

Technical Field

The utility model relates to the technical field of furniture testing, in particular to a dining chair leg durability testing machine.

Background

The dining chair is a chair specially used for dining, is a kind of dining room furniture, and is divided into according to dining chair materials: solid wood chairs, steel wood chairs, bent wood chairs, aluminum alloy chairs, metal chairs, rattan chairs, plastic chairs, glass fiber reinforced plastic chairs, acrylic chairs, plate chairs, miscellaneous wood chairs, baby dining chairs, round-backed chairs and the like, wherein the dining chair mainly comprises three parts of a chair seat, a backrest and chair legs, wherein the chair legs are main parts for bearing the body weight of a diner, so the durability of the chair legs is an important performance of the dining chair. The utility model provides a disjunctor dining table chair intensity and durability test equipment that prior art publication No. CN203811397U proposed, including fixed platform and movable platform, movable platform sets up on the slide rail, be fixed with four stands on four angles of fixed platform, the upper end is connected through the crossbeam between two adjacent stands, be provided with many sliding section bars between crossbeam and the fixed platform, sliding section bar's both ends are connected with crossbeam and fixed platform respectively through the pulley, be provided with loading device on the sliding section bar, loading device is fixed with test sensor, loading device connects the cylinder, the cylinder drives loading device and reciprocates, but its structure is comparatively complicated, table chair sample is placed on movable platform and is not fixed it, the table chair takes place to slide easily, have not tested out simultaneously that dining personnel sits about on the dining chair and rock the influence to dining chair leg durability, the test effect to dining chair leg is relatively poor.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the dining chair leg durability testing machine which can limit and fix dining table legs, prevent the dining table legs from sliding in the shaking process, improve the stability in the testing process, simulate the state of dining personnel sitting on a dining chair to shake left and right, and test the shearing resistance of the joint of the chair legs and the seat and the chair legs.

The utility model relates to a dining chair leg durability testing machine which comprises a base, two support columns and a loading device, wherein the two support columns are symmetrically arranged at the top end of the base, and the loading device is arranged on the two support columns; the dining table leg fixing device comprises a dining table leg fixing seat, a dining table seat, a dining staff seat, a dining table leg fixing seat, a base, a swinging device and a clamping device, wherein the swinging device is slidably arranged at the top end of the base, and simulates a state when the dining staff sits on the dining table and swings left and right; carry out spacing fixedly through clamping device to the dining table leg, prevent that the dining table leg from taking place to slide at rocking the in-process, stability when improving the test, exert pressure to the dining chair seat through loading device, the dining person of test different weight is to the influence of the durability of chair leg supporting property, the state of rocking about sitting on the dining chair of the staff of simulating dining through rocking device, test chair leg and seat junction and chair leg's anti-shear force performance, improve the test effect to dining chair leg durability.

Preferably, the loading device comprises two screw rods, two thread blocks, two synchronous motors, a moving plate, a pressure detector, a pressure rod and a pressing block, wherein the moving groove is formed in one end of each of the two opposite support columns, the two screw rods are respectively rotatably arranged in the moving groove, the two thread blocks are respectively screwed on the outer side wall of the screw rods, the two thread blocks are respectively slidably arranged in the moving groove, the top ends of the two screw rods penetrate through the moving groove and are fixedly connected with the output end of the synchronous motor, the moving plate is fixedly connected between the two thread blocks, the pressure detector is fixedly arranged in the middle of the bottom end of the moving plate, the pressure rod is fixedly arranged at the bottom end of the pressure detector, and the pressing block is arranged at the bottom end of the pressure rod; starting two synchronous motors, wherein the synchronous motors drive the screw rods to rotate, the screw rods rotate to drive the threaded blocks to move in the moving grooves, the threaded blocks drive the moving plates to descend, the moving plates drive the pressure detector and the pressing rods to descend, the pressing blocks are in contact with the seat, the synchronous motors drive the screw rods to continuously rotate, the pressing blocks continuously press the dining chair, the dining persons with different weights test the influence of the dining persons on the durability of the supporting performance of the chair legs, the pressure detector detects the pressure, and after the pressure meets the test requirement, the two synchronous motors are started to reversely rotate to drive the moving plates to ascend.

Preferably, the shaking device comprises two convex sliding blocks, a movable plate, a fixed plate and two telescopic cylinders, wherein the two sliding grooves are symmetrically formed in the upper surface of the base, the two convex sliding blocks are slidably arranged in the sliding grooves, the movable plate is fixedly connected to the top end of the convex sliding blocks, the fixed plate is arranged on the right part of the top end of the base, the two telescopic cylinders are symmetrically arranged on the front side and the rear side of the top end of the fixed plate, and the telescopic ends of the telescopic cylinders are fixedly connected with the right side wall of the movable plate; put the dining chair leg on the top of fly leaf, the briquetting is pressed on the top of seat support, starts flexible cylinder, and flexible end of flexible cylinder drives the fly leaf and rocks about in the spout through the convex slider, and rocks the range is less, and is the same with the range of motion that dining personnel sat on the dining chair, tests the shearing resistance performance of chair leg and seat support junction and chair leg, improves the test effect to dining chair leg durability.

Preferably, the shaking device further comprises a vertical plate, two sliding rods and two springs, wherein the vertical plate is fixedly arranged at the left part of the top end of the base, the two sliding rods are slidably arranged at the front end and the rear end of the vertical plate, the right ends of the two sliding rods are fixedly connected with the left side wall of the movable plate, the other ends of the sliding rods are respectively provided with a limiting block, the two springs are respectively sleeved on the outer side wall of the sliding rods, the right ends of the springs are connected with the left side wall of the base, and the left ends of the springs are connected with the right side wall of the vertical plate; when the movable plate is pushed to move leftwards by the telescopic air cylinder, the movable plate drives the two sliding rods to move leftwards, the springs are compressed in the moving process, and when the movable plate moves rightwards, the springs push the movable plate to reset, so that the movable plate moves reciprocally, the connection inertia during use is improved, and the service life of the telescopic air cylinder is prolonged.

Preferably, the clamping device comprises two groups of limiting plates, two groups of threaded rods, two groups of bearings, two groups of clamping plates and two groups of rotating handles, wherein the two groups of limiting plates are symmetrically arranged on the front side and the rear side of the top end of the movable plate, the threaded rods are screwed on the limiting plates, the clamping plates are rotatably arranged at the opposite ends of the two threaded rods through the bearings, the rotating handles are fixedly arranged at the other ends of the threaded rods, and the clamping plates are arc-shaped; put the chair leg on the top of fly leaf, rotate the swivel handle, the swivel handle drives the threaded rod and rotates, makes splint be close to each other, because splint pass through the bearing and rotate and install on the threaded rod, can adjust the angle of splint according to the inclination of chair leg, make splint and chair leg can in close contact, limit four chair legs through two sets of splint, prevent that dining chair from rocking the in-process and sliding.

Preferably, the pressing block is arranged in the same shape as the buttocks of the human body; the briquetting sets up to the shape the same with human buttock, can press close to the in-service use condition in the actual life more, improves the accuracy of test.

Preferably, the novel multifunctional electric bicycle further comprises four supporting legs and four rubber pads, wherein the four supporting legs are fixedly arranged at four corners of the bottom end of the base, and the rubber pads are fixedly arranged at the bottom ends of the supporting legs; support equipment through landing leg and rubber pad, stability when improving equipment use improves landing leg and the frictional force on ground through the rubber pad, reduces vibration noise, improves the practicality.

Compared with the prior art, the utility model has the beneficial effects that: carry out spacing fixedly through clamping device to the dining table leg, prevent that the dining table leg from taking place to slide at rocking the in-process, stability when improving the test, exert pressure to the dining chair seat through loading device, the dining person of test different weight is to the influence of chair leg supporting property durability, through rocking the state of device simulation dining personnel when sitting on the dining chair and rocking about, test chair leg and seat junction and chair leg's anti-shear force performance, improve the test effect to dining chair leg durability.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the front view of the present utility model;

FIG. 3 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 4 is a schematic top view in cross-section of the present utility model;

FIG. 5 is a schematic view of the right-side cross-sectional structure of the present utility model;

the reference numerals in the drawings: 1. a base; 2. a support column; 3. a screw rod; 4. a screw block; 5. a synchronous motor; 6. a moving plate; 7. a pressure detector; 8. a compression bar; 9. briquetting; 10. a convex slide block; 11. a movable plate; 12. a fixing plate; 13. a telescopic cylinder; 14. a riser; 15. a slide bar; 16. a spring; 17. a limiting plate; 18. a threaded rod; 19. a bearing; 20. a clamping plate; 21. a rotating handle; 22. a support leg; 23. and a rubber pad.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Example 1

As shown in fig. 1, 3 and 5, the two support columns 2 are symmetrically installed at the top end of the base 1, and the loading device is installed on the two support columns 2; the dining table leg fixing device is characterized by further comprising a shaking device and a clamping device, wherein the shaking device is slidably arranged at the top end of the base 1, the shaking device simulates a state when a dining person sits on the dining chair and shakes left and right, the clamping device is arranged at the top end of the shaking device and limits and fixes dining table legs, the loading device comprises two screw rods 3, two thread blocks 4, two synchronous motors 5, a moving plate 6, a pressure detector 7, a compression rod 8 and a pressing block 9, a moving groove is formed at one end of each of the two support columns 2, the two screw rods 3 are rotatably arranged in the moving groove respectively, the two thread blocks 4 are slidably arranged on the outer side wall of the screw rod 3 respectively, the top ends of the two screw rods 3 penetrate through the moving groove and are fixedly connected with the output end of the synchronous motor 5, the moving plate 6 is fixedly connected between the two thread blocks 4, the middle part of the bottom end of the moving plate 6 is fixedly provided with a pressure detector 7, the bottom end of the pressure detector 7 is fixedly provided with a pressure rod 8, the bottom end of the pressure rod 8 is provided with a pressing block 9, the shaking device comprises two convex sliding blocks 10, a movable plate 11, a fixed plate 12 and two telescopic air cylinders 13, two sliding grooves are symmetrically formed in the upper surface of the base 1, the two convex sliding blocks 10 are slidably arranged in the sliding grooves, the top end of the convex sliding blocks 10 is fixedly connected with the movable plate 11, the fixed plate 12 is arranged at the right part of the top end of the base 1, the two telescopic air cylinders 13 are symmetrically arranged at the front side and the back side of the top end of the fixed plate 12, the telescopic end of the telescopic air cylinders 13 is fixedly connected with the right side wall of the movable plate 11, the pressing block 9 is in the same shape as the human buttocks, the shaking device further comprises four supporting legs 22 and four rubber pads 23, the four supporting legs 22 are fixedly arranged at four corners of the bottom end of the base 1, the bottom end of the supporting leg 22 is fixedly provided with a rubber pad 23;

put dining chair leg on the top of fly leaf 11, spacing fixed to dining table leg through clamping device, prevent dining table leg from taking place to slide in rocking the in-process, stability when improving the test, start two synchronous motor 5, synchronous motor 5 drives lead screw 3 and rotates, lead screw 3 rotates and drives screw thread piece 4 and remove in the movable tank, screw thread piece 4 drives movable plate 6 decline, movable plate 6 drives pressure detector 7 and depression bar 8 decline, make briquetting 9 and meal seat contact, synchronous motor 5 drives lead screw 3 and lasts and rotate messenger's briquetting 9 and exert pressure to dining chair, the dining person who tests different weight is to the influence of chair leg supporting property durability, detect pressure size through pressure detector 7, start telescopic cylinder 13, telescopic end of telescopic cylinder 13 drives fly leaf 11 through convex slider 10 and rocks about in the spout, and rock the range is less, the range of motion the same with dining personnel sitting on dining chair, the anti-shear force performance to test of chair leg and seat junction, improve the test effect to dining chair leg durability, after reaching test requirement two synchronous motor reversal, drive movable plate 5 and seat 6 and drive the briquetting 9 and the improvement noise pad is that the shape is the same, the practical noise is improved, the device is more accurate and is used to the noise pad is 23, the improvement is more practical, the noise is improved, the device is more is used to the noise is more in the shape is improved, and the noise is more practical, the device is improved.

Example 2

As shown in fig. 1, 2 and 4, the shaking device further comprises a vertical plate 14, two sliding rods 15 and two springs 16, the vertical plate 14 is fixedly arranged at the left part of the top end of the base 1, the two sliding rods 15 are slidably arranged at the front end and the rear end of the vertical plate 14, the right ends of the two sliding rods 15 are fixedly connected with the left side wall of the movable plate 11, the other ends of the sliding rods 15 are respectively provided with a limiting block, the two springs 16 are respectively sleeved on the outer side wall of the sliding rods 15, the right ends of the springs 16 are connected with the left side wall of the base 1, the left ends of the springs 16 are connected with the right side wall of the vertical plate 14, the clamping device comprises two groups of limiting plates 17, two groups of threaded rods 18, two groups of bearings 19, two groups of clamping plates 20 and two groups of rotating handles 21, the two groups of limiting plates 17 are symmetrically arranged at the front side and the rear ends of the top end of the movable plate 11, the threaded rods 18 are screwed on the limiting plates 17, the opposite ends of the two threaded rods 18 are rotatably provided with the clamping plates 20 through the bearings 19, the other ends of the threaded rods 18 are fixedly provided with the rotating handles 21, and the clamping plates 20 are arc-shaped;

the chair legs are placed at the top ends of the movable plates 11, the rotating handles 21 are rotated, the threaded rods 18 are driven by the rotating handles 21 to rotate, so that the clamping plates 20 are close to each other, as the clamping plates 20 are rotatably arranged on the threaded rods 18 through the bearings 19, the angles of the clamping plates 20 can be adjusted according to the inclination angles of the chair legs, the clamping plates 20 can be tightly contacted with the chair legs, the four chair legs are limited through the two groups of clamping plates 20, the dining chair is prevented from sliding in the shaking process, when the movable plates 11 are pushed to move leftwards by the telescopic cylinders 13, the movable plates 11 drive the two sliding rods 15 to move leftwards, the springs 16 are compressed in the moving process, when the movable plates 11 move rightwards, the movable plates 11 are pushed by the springs 16 to reset, the movable plates 11 are enabled to reciprocate, the connecting inertia in use is improved, and the service life of the telescopic cylinders 13 is prolonged.

As shown in figures 1 to 5, in the dining chair leg durability testing machine, when the dining chair leg durability testing machine works, firstly chair legs are placed at the top end of a movable plate 11, a rotary handle 21 is rotated, a threaded rod 18 is driven by the rotary handle 21 to rotate, clamping plates 20 are made to approach each other, the angles of the clamping plates 20 are adjusted according to the inclination angles of the chair legs, the clamping plates 20 and the chair legs can be tightly contacted, four chair legs are limited through two groups of clamping plates 20, two synchronous motors 5 are started, a screw rod 3 is driven by the synchronous motors 5 to rotate, a threaded block 4 is driven by the screw rod 3 to move in a moving groove, a movable plate 6 is driven by the threaded block 4 to descend, a pressure detector 7 and a compression rod 8 are driven by the movable plate 6 to descend, a pressing block 9 is made to contact with a meal seat, the synchronous motors 5 drive the screw rod 3 to continuously rotate, the pressing block 9 continuously presses the meal chair, influences of different dining chairs are tested, the pressure magnitudes are detected by the pressure detector 7, a telescopic cylinder 13 is started, the telescopic end of the telescopic cylinder 13 drives the movable plate 11 to shake left and right in a sliding groove through a convex sliding block 10, the two dining chair legs are driven by the telescopic cylinder 11 to move left and right, the sliding rod 11 is driven by the telescopic cylinder 11 to move in the same amplitude as the amplitude when the two dining chair legs are driven by the synchronous motor 11 to move, the reciprocating plate 11 and the reciprocating plate 11 is driven by the reciprocating plate 16 to move, and the reciprocating plate 11 is required to move in the reciprocating plate 16 to move, and the reciprocating plate 11 is driven by the reciprocating plate, and the reciprocating plate 11 to move and the reciprocating plate is required to move and move the test spring to move and move.

The synchronous motor 5, the pressure detector 7 and the telescopic cylinder 13 of the dining chair leg durability testing machine are purchased in the market, and a person skilled in the art only needs to install and operate according to the attached use instruction without creative labor of the person skilled in the art.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (7)

1. The dining chair leg durability testing machine comprises a base (1), two support columns (2) and a loading device, wherein the two support columns (2) are symmetrically arranged at the top end of the base (1), and the loading device is arranged on the two support columns (2); the dining chair is characterized by further comprising a shaking device and a clamping device, wherein the shaking device is slidably arranged at the top end of the base (1), the dining personnel are simulated to sit on the dining chair in a left-right shaking state, and the clamping device is arranged at the top end of the shaking device and used for limiting and fixing dining table legs.

2. The dining chair leg durability testing machine according to claim 1, wherein the loading device comprises two screw rods (3), two thread blocks (4), two synchronous motors (5), a moving plate (6), a pressure detector (7), a pressing rod (8) and a pressing block (9), wherein the moving groove is formed in one end, opposite to the two support columns (2), of the two screw rods (3) respectively and rotatably installed in the moving groove, the two thread blocks (4) are respectively and rotatably installed on the outer side wall of the screw rods (3), the two thread blocks (4) are respectively and slidably installed in the moving groove, the top ends of the two screw rods (3) penetrate through the moving groove and are fixedly connected with the output end of the synchronous motor (5), the moving plate (6) is fixedly connected between the two thread blocks (4), the pressure detector (7) is fixedly installed in the middle of the bottom end of the moving plate (6), the pressing rod (8) is fixedly installed at the bottom end of the pressure detector (7).

3. The dining chair leg durability testing machine according to claim 1, wherein the shaking device comprises two convex sliding blocks (10), a movable plate (11), a fixed plate (12) and two telescopic cylinders (13), two sliding grooves are symmetrically formed in the upper surface of the base (1), the two convex sliding blocks (10) are slidably mounted in the sliding grooves, the movable plate (11) is fixedly connected to the top end of the convex sliding blocks (10), the fixed plate (12) is mounted on the right portion of the top end of the base (1), the two telescopic cylinders (13) are symmetrically mounted on the front side and the rear side of the top end of the fixed plate (12), and the telescopic ends of the telescopic cylinders (13) are fixedly connected with the right side wall of the movable plate (11).

4. A dining chair leg durability testing machine according to claim 3, characterized in that the shaking device further comprises a vertical plate (14), two sliding rods (15) and two springs (16), wherein the vertical plate (14) is fixedly arranged at the left part of the top end of the base (1), the two sliding rods (15) are slidably arranged at the front end and the rear end of the vertical plate (14), the right ends of the two sliding rods (15) are fixedly connected with the left side wall of the movable plate (11), limiting blocks are respectively arranged at the other ends of the sliding rods (15), the two springs (16) are respectively sleeved on the outer side wall of the sliding rods (15), the right ends of the springs (16) are connected with the left side wall of the base (1), and the left ends of the springs (16) are connected with the right side wall of the vertical plate (14).

5. A dining chair leg durability testing machine according to claim 3, characterized in that the clamping means comprises two sets of limiting plates (17), two sets of threaded rods (18), two sets of bearings (19), two sets of clamping plates (20) and two sets of rotating handles (21), the two sets of limiting plates (17) are symmetrically arranged on the front side and the rear side of the top end of the movable plate (11), the threaded rods (18) are screwed on the limiting plates (17), the clamping plates (20) are rotatably arranged at the opposite ends of the two threaded rods (18) through the bearings (19), the rotating handles (21) are fixedly arranged at the other ends of the threaded rods (18), and the clamping plates (20) are arc-shaped.

6. A dining chair leg durability testing machine according to claim 2, characterized in that the press block (9) is provided in the same shape as the buttocks of a human body.

7. The dining chair leg durability testing machine according to claim 1, further comprising four supporting legs (22) and four rubber pads (23), wherein the four supporting legs (22) are fixedly arranged at four corners of the bottom end of the base (1), and the rubber pads (23) are fixedly arranged at the bottom ends of the supporting legs (22).