CN117538087B - Stability testing device for wooden table and chair furniture - Google Patents
Stability testing device for wooden table and chair furniture Download PDFInfo
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- CN117538087B CN117538087B CN202410015316.1A CN202410015316A CN117538087B CN 117538087 B CN117538087 B CN 117538087B CN 202410015316 A CN202410015316 A CN 202410015316A CN 117538087 B CN117538087 B CN 117538087B
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- 238000012430 stability testing Methods 0.000 title abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 60
- 238000006243 chemical reaction Methods 0.000 claims abstract description 56
- 238000004088 simulation Methods 0.000 claims abstract description 21
- 230000005484 gravity Effects 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 244000309464 bull Species 0.000 claims 2
- 238000013112 stability test Methods 0.000 abstract description 12
- 238000013519 translation Methods 0.000 abstract description 11
- 238000003825 pressing Methods 0.000 description 16
- 230000003014 reinforcing effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 238000012546 transfer Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/001—Testing of furniture, e.g. seats or mattresses
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Abstract
The invention relates to the technical field of furniture stability test, and in particular provides a stability test device for wooden table and chair furniture, which comprises: the connecting base is provided with supporting tables symmetrically arranged along the width direction of the connecting base, the supporting tables are L-shaped, the horizontal sections of the two supporting tables are provided with placing grooves, and the top of the connecting base is provided with a testing mechanism. According to the stability testing device for the wooden table and chair furniture, disclosed by the invention, the direct pushing group and the pushing group are converted through the conversion and adjustment group, the reciprocating movement of the table in different states is simulated, the testing mechanism is matched with the gravity simulation mechanism, so that the comprehensive simulation test of translation of the table in a horizontal state, translation of the table in a lifted state at one side and translation of the upper end of the horizontal table in the presence or absence of a bearing is realized, and the comprehensiveness of the stability test of the table is improved through multi-direction test.
Description
Technical Field
The invention relates to the technical field of furniture stability testing, and particularly provides a stability testing device for wooden table and chair furniture.
Background
It is important that the wood table and chair furniture be subjected to stability tests that evaluate the stability and durability of the furniture in long term use. By simulating daily use scenes and stress, whether the furniture is loosened, deformed or damaged after long-time use or not can be detected.
For example, when a wooden table is moved in the daily use process, one side of the table needs to be pulled to drive the table to move, so that whether the joint of the table is loosened after the table is pulled for many times needs to be tested, when the table is subjected to the daily use simulation test, the table is moved, not only translation is carried out, but also one side of the table is lifted, then the table is pulled to move, and whether objects are placed on the table can influence the stability test of the table, so that the stability test device for the wooden table and chair furniture comprehensively tests the stability of the table in three directions, namely translation of the table in a horizontal state and translation of the table in a lifted state, and horizontal movement of the upper end of the table in the presence or absence of a carrier, is needed.
Disclosure of Invention
In view of the above problems, an embodiment of the present application provides a stability testing device for wooden table and chair furniture, so as to solve the above technical problems.
In order to achieve the above purpose, the embodiment of the present application provides the following technical solutions: a stability testing device for wooden table and chair furniture, comprising: the connecting base is provided with supporting tables symmetrically arranged along the width direction of the connecting base, the supporting tables are L-shaped, the horizontal sections of the two supporting tables are provided with placing grooves, and the top of the connecting base is provided with a testing mechanism.
The tops of the two supporting tables are respectively provided with a fixing frame, a cross sliding up and down is connected between the two fixing frames, and the middle part of the cross is connected with a gravity simulation mechanism sliding along the length direction of the connecting base; a limiting mechanism is arranged between the vertical sections of the two supporting tables.
The testing mechanism comprises ear seats which are arranged at the top of the connecting base and symmetrically arranged along the length direction of the connecting base, a conversion shaft is rotationally connected between the two ear seats, a fan-shaped cylinder is sleeved on the conversion shaft, the conversion shaft is connected with the fan-shaped cylinder through spline fit, a straight pushing group and a pushing group which are mutually perpendicular to each other are arranged on the arc-shaped side wall of the fan-shaped cylinder, a conversion adjusting group is arranged between one end of the conversion shaft and one of the ear seats, and a reciprocating driving group which drives the fan-shaped cylinder to axially reciprocate along the conversion shaft is connected between the horizontal sections of the two supporting tables.
The straight pushing group comprises two connecting blocks which are connected to the arc-shaped side wall of the fan-shaped cylinder and are symmetrically arranged along the axial direction of the fan-shaped cylinder, and clamping plates which are symmetrically arranged along the axial direction of the fan-shaped cylinder are arranged on the connecting blocks.
The pushing group comprises two fixing blocks which are connected to the arc-shaped side wall of the fan-shaped cylinder and are symmetrically arranged along the axial direction of the arc-shaped side wall, a bearing seat is arranged on each fixing block, an L-shaped baffle is rotatably arranged on each bearing seat through a pin shaft, meanwhile, the pin shafts are connected with the bearing seat in a sliding mode up and down, the lower side of the horizontal section of each L-shaped baffle is arc-shaped, and a top assembly is connected to the corresponding conversion shaft.
The direct pushing group is used for simulating and testing the state of the flat pushing table, the pushing group is used for simulating and testing the state of the table when one side of the table is lifted upwards and then pushed, and the conversion and adjustment group is used for carrying out position conversion and adjustment on the direct pushing group and the pushing group.
In one possible implementation mode, the gravity simulation mechanism comprises a T-shaped groove formed in the bottom of the cross, a T-shaped seat is slidably connected in the T-shaped groove, a storage box is mounted at the bottom of the T-shaped seat, a plurality of storage cavities uniformly distributed from top to bottom are formed in the storage box, rectangular through grooves uniformly distributed from top to bottom and communicated with the storage cavities one by one are formed in the storage box, inserting plates are mounted on inner walls of two sides of the storage cavities distributed along the length direction of the storage cavities, balancing weights are placed in the storage cavities, inserting grooves matched with the inserting plates in an inserting mode are formed in two sides of the balancing weights, pull handles are mounted on one side of the balancing weights close to the rectangular through grooves, the top of the balancing weights are provided with limiting grooves, mounting grooves uniformly distributed from top to bottom and communicated with the storage cavities one by one are formed in the side walls of the storage box, and inverted-L-shaped stop blocks are slidably connected in the mounting grooves.
In one possible implementation mode, the reciprocating driving set comprises a U-shaped frame which is connected with opposite surfaces of horizontal sections of two supporting tables in a sliding mode, racks are installed at the tops of two opposite ends of the U-shaped frame, a rotating shaft is connected between the horizontal sections of the two supporting tables in a rotating mode, gears which are symmetrically arranged along the axial direction of the rotating shaft are fixedly sleeved on the rotating shaft, the gears are meshed with the racks to drive, an air cylinder is installed on one ear seat, the telescopic end of the air cylinder is connected with the U-shaped frame, two groups of stirring assemblies which are arranged in a V-shaped mode are arranged on the side wall of the rotating shaft, the stirring assemblies are composed of a bracket connected with the rotating shaft and stirring rollers which are connected with the bracket in a rotating mode, fixing plates are installed in the middle of two planes which are circumferentially arranged along the converting shaft, and the fixing plates are located between the two stirring rollers.
In one possible implementation mode, the top assembly comprises two inverted-L-shaped strips connected to the conversion shaft and symmetrically arranged along the axial direction of the conversion shaft, the fan-shaped cylinder is located between the two inverted-L-shaped strip vertical sections, the horizontal sections of the inverted-L-shaped strips are connected with a top plate, one end of the top plate, which is close to the L-shaped baffle, is an inclined surface, the inclined surface of the top plate is in contact with the arc-shaped surface of the L-shaped baffle, and a rectangular penetrating groove is formed in the bearing seat.
In one possible implementation mode, the limiting mechanism comprises a guide moving groove formed in the opposite face of the vertical sections of the two supporting tables, a pressing plate sliding up and down is connected in the guide moving groove, a pressing spring is connected between the pressing plate and the guide moving groove, an anti-offset block is installed at the bottom of the pressing plate, one side of the anti-offset block is rotationally connected with a rotating rod, and a limiting strip is installed on the rotating rod.
In a possible implementation manner, the conversion adjusting group comprises a clamping block which is arranged after one end of a conversion shaft penetrates through the lug seat and is uniformly distributed along the annular wall of the conversion shaft, a pull ring is sleeved on the conversion shaft, a plug rod which is uniformly distributed along the circumferential direction of the pull ring is arranged on one side, close to the lug seat, of the pull ring, the plug rod is in sliding plug connection with the lug seat, and a type clamping seat which is in clamping connection with the clamping block is arranged on the plug rod.
In one possible implementation manner, the accommodating grooves are formed in the accommodating grooves and symmetrically arranged along the length direction of the accommodating grooves, the buffer baffle plates are connected in the accommodating grooves in a sliding manner, and the buffer springs are arranged between the buffer baffle plates and the accommodating grooves.
In one possible implementation, a rubber gasket is mounted at the bottom of the storage box, and the rubber gasket is used for increasing friction between the storage box and the tabletop so that the table drives the storage box to move during test movement.
The above technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. according to the stability testing device for the wooden table and chair furniture, disclosed by the invention, the direct pushing group and the pushing group are converted through the conversion and adjustment group, the reciprocating movement of the table in different states is simulated, the testing mechanism is matched with the gravity simulation mechanism, so that the comprehensive simulation test of translation of the table in a horizontal state, translation of the table in a lifted state at one side and translation of the upper end of the horizontal table in the presence or absence of a bearing is realized, and the comprehensiveness of the stability test of the table is improved through multi-direction test.
2. The limiting strip, the pressing plate and the anti-offset block are matched to limit the table when the table is placed, after the placement position of the table is determined, the limiting strip does not limit the table any more, and then the pressing plate is pressed to limit the table in the test process, so that the table is prevented from rollover in the moving process, and the development of the test of the table and the accuracy of the test result are prevented from being affected.
3. The gravity simulation mechanism can adjust the gravity applied to the table according to the requirement, so that the stability test of the table in reciprocating movement under the condition of bearing different weight bearing objects is realized, and the comprehensiveness of the stability test of the table is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic overall perspective view of the present invention.
Fig. 2 is an enlarged schematic view of a portion of fig. 1 according to the present invention.
FIG. 3 is a schematic perspective view of the testing mechanism of the present invention.
Fig. 4 is a top view of fig. 1 of the present invention.
Fig. 5 is a B-B cross-sectional view of fig. 4 in accordance with the present invention.
Fig. 6 is an enlarged schematic view of a portion of the present invention at C in fig. 5.
Fig. 7 is an enlarged schematic view of a portion of the present invention at D in fig. 5.
Fig. 8 is a schematic diagram of the front cross-sectional structure of the gravity simulation mechanism of the present invention.
Reference numerals: 1. the base is connected; 2. a support table; 3. placing the groove; 30. a receiving groove; 31. a buffer spring; 32. a buffer baffle; 4. a testing mechanism; 40. an ear seat; 41. a switching shaft; 42. a fan-shaped cylinder; 43. a direct pushing group; 430. a connecting block; 431. a clamping plate; 44. pushing the group; 440. a fixed block; 441. a socket; 442. an L-shaped baffle; 470. an inverted L-shaped strip; 471. a top plate; 45. switching the adjustment group; 450. a clamping block; 451. a pull ring; 452. a rod; 453. type clamping seat; 46. a reciprocating drive group; 460. a U-shaped frame; 461. a rack; 462. a rotating shaft; 463. a gear; 464. a cylinder; 465. a bracket; 466. a pulling roller; 467. a fixing plate; 5. a fixing frame; 6. a cross; 7. a gravity simulation mechanism; 70. a T-shaped groove; 71. a T-shaped seat; 72. a storage box; 73. a storage chamber; 74. rectangular through grooves; 75. inserting plate; 76. balancing weight; 77. a pull handle; 78. a limit groove; 79. a mounting groove; 701. an inverted L-shaped stop block; 8. a limiting mechanism; 80. a guide and transfer groove; 81. a pressing plate; 82. pressing the spring; 83. an anti-offset block; 84. a rotating rod; 85. a limit bar; 9. a table; 90. a table top; 91. a support leg; 92. reinforcing plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that those skilled in the art will better understand the present invention, the following description will be given in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, a device for testing stability of wooden table and chair furniture comprises: connect base 1, connect and install on the base 1 along its width direction symmetrical arrangement's supporting bench 2, supporting bench 2 is the L type, and placing groove 3 has all been seted up to the horizontal segment of two supporting bench 2, and the top of connecting base 1 is provided with testing mechanism 4.
Referring to fig. 1, fixing frames 5 are mounted on the top of two support tables 2, a cross 6 sliding up and down is connected between the two fixing frames 5, the cross 6 is connected with an external driving source (such as an electric slide block) driving the cross 6 to slide on the fixing frames 5, and a gravity simulation mechanism 7 sliding along the length direction of the connecting base 1 is connected in the middle of the cross 6; a limiting mechanism 8 is arranged between the vertical sections of the two support tables 2.
Referring to fig. 1 and 5, the table 9 is formed by a table top 90, four legs 91 mounted to the bottom of the table top 90, and a reinforcing plate 92 mounted between two adjacent legs 91 and the table top 90.
When the table 9 is placed, the supporting legs 91 on two sides which are arranged along the length direction of the table 9 are placed in the corresponding placing grooves 3, and then the table 9 is limited through the limiting mechanism 8, so that the table 9 is prevented from being turned over in the testing process.
After the external driving source drives the gravity simulation mechanism 7 to move onto the table 9, the test mechanism 4 drives the table 9 to reciprocate, so that stability of the table 9 when the table 9 reciprocates under the condition of bearing an object is tested.
After the cross 6 drives the gravity mechanism to move away from the table 9, the test mechanism 4 drives the table 9 to reciprocate, so that the stability of the table 9 when the table 9 reciprocates without carrying an object is tested.
Referring to fig. 1, 5, 7 and 8, the gravity simulation mechanism 7 includes a T-shaped groove 70 formed at the bottom of the cross 6, a T-shaped seat 71 is slidably connected in the T-shaped groove 70, a horizontal section of the T-shaped seat 71 is rotatably connected with a rotating roller in rolling contact with the T-shaped groove 70, the rotating roller is used for reducing friction between the T-shaped seat 71 and the T-shaped groove 70, a storage box 72 is mounted at the bottom of the T-shaped seat 71, a plurality of storage cavities 73 uniformly distributed from top to bottom are formed on the storage box 72, rectangular through grooves 74 uniformly distributed from top to bottom and communicated with the storage cavities 73 are formed on the storage box 72, inserting plates 75 are mounted on inner walls of two sides of the storage cavities 73 along the length direction, balancing weights 76 are placed in the storage cavities 73, slots in plug-in fit with the inserting plates 75 are formed on two sides of the balancing weights 76, a pull handle 77 is mounted on one side, the pulling handle 77 penetrates through the rectangular through grooves 74, a limit groove 78 is formed in the top of the balancing weights 76, a side wall of the storage box 72 is provided with a plurality of storage cavities 73 uniformly distributed from top to bottom and communicated with the storage cavities 73, a limit stop block 79 is mounted on the side wall of the storage box 72, and a limit stop block is mounted on the side wall of the storage box is connected with the reverse-stop block 79.
When the weight applied on the table 9 needs to be adjusted and reduced, one of the inverted-L-shaped stop blocks 701 can be lifted upwards, so that the vertical section of the inverted-L-shaped stop block 701 is separated from the limit groove 78, and then the counterweight 76 is pushed to be moved out of the storage cavity 73 by the pull handle 77, so that the weight of the gravity simulation mechanism 7 is adjusted, and the stability test of the reciprocating movement of the table 9 under different gravity actions is realized.
Referring to fig. 8, a rubber gasket is mounted at the bottom of the storage box 72, and the rubber gasket is used to increase the friction between the storage box 72 and the table top, so that the table 9 drives the storage box 72 to move during the test movement.
Referring to fig. 1 and 4, the limiting mechanism 8 includes a guiding and moving slot 80 formed on opposite sides of vertical sections of the two support tables 2, a pressing plate 81 sliding up and down is connected in the guiding and moving slot 80, a pressing spring 82 is connected between the pressing plate 81 and the guiding and moving slot 80, an anti-deviation block 83 is mounted at the bottom of the pressing plate 81, anti-deviation blocks 83 and the pressing plate 81 are all rotationally connected with antifriction rollers (not shown in the figure), one side of the anti-deviation block 83 is rotationally connected with a rotating rod 84, and a limiting strip 85 is mounted on the rotating rod 84.
The limit bar 85 cooperates with the pressing plate 81 and the anti-offset block 83 to limit the table 9 when placed, as shown in fig. 4. After the position of the table 9 is determined, the rotating rod 84 is rotated to drive the limiting bar 85 to rotate towards the supporting table 2, the table 9 is not limited any more, the table 9 can move longitudinally, then the table 9 is tested through the testing mechanism 4, the pressing plate 81 is propped against the pressing plate 81 to limit the table 9 transversely in the testing process, and the problem that the table 9 is laterally turned over in the moving process and the test of the table 9 is affected is avoided.
Referring to fig. 1 and 3, the testing mechanism 4 includes ear seats 40 symmetrically disposed along the length direction thereof and disposed on the top of the connection base 1, a conversion shaft 41 is rotatably connected between the two ear seats 40, a fan-shaped cylinder 42 is sleeved on the conversion shaft 41, the conversion shaft 41 is connected with the fan-shaped cylinder 42 through spline fit, a straight pushing group 43 and a pushing group 44 which are vertically arranged are mounted on the arc-shaped side wall of the fan-shaped cylinder 42, a conversion adjusting group 45 is disposed between one end of the conversion shaft 41 and one of the ear seats 40, and a reciprocating driving group 46 for driving the fan-shaped cylinder 42 to axially reciprocate along the conversion shaft 41 is connected between the horizontal sections of the two support tables 2; the position between the underside of the table top 90 and the transfer shaft 41 is the test station.
Referring to fig. 3, the straight pushing set 43 includes two connection blocks 430 connected to the arc-shaped side wall of the fan-shaped cylinder 42 and symmetrically arranged along the axial direction thereof, and the connection blocks 430 are mounted with clamping plates 431 symmetrically arranged along the axial direction of the fan-shaped cylinder 42.
When the direct pushing group 43 rotates towards the testing station, the two clamping plates 431 on the connecting block 430 rotate and move to the corresponding side of the reinforcing plate 92 arranged along the width direction of the table 9, the reinforcing plate 92 is located between the two clamping plates 431 on the same connecting block 430, the clamping plates 431 limit the reinforcing plate 92 so that the clamping plates 431 drive the table 9 to reciprocate afterwards, then the reciprocating driving group 46 drives the fan-shaped cylinder 42 to axially reciprocate along the conversion shaft 41, and the fan-shaped cylinder 42 pushes the table 9 to reciprocate through the clamping plates 431 in the moving process, so that stability between the table top 90 and the supporting legs 91 is tested when the table 9 translates in a horizontal state.
Referring to fig. 3 and 6, the pushing assembly 44 includes two fixing blocks 440 connected to the arc-shaped side wall of the fan-shaped cylinder 42 and symmetrically arranged along the axial direction thereof, a supporting seat 441 is mounted on the fixing blocks 440, an L-shaped baffle 442 is rotatably mounted on the supporting seat 441 through a pin, meanwhile, the pin is slidably connected with the supporting seat 441 up and down, the lower side of the horizontal section of the L-shaped baffle 442 is arc-shaped, and a top assembly is connected to the conversion shaft 41.
When the pushing set 44 moves to the testing station, the fan-shaped cylinder 42 drives the fixing block 440 and the receiving seat 441 to rotate between the two reinforcing plates 92 arranged along the width direction of the table 9, so that the horizontal section of the L-shaped baffle 442 is located below the reinforcing plates 92, and then drives the fan-shaped cylinder 42 to axially reciprocate along the conversion shaft 41 through the reciprocating driving set 46: when the fan-shaped cylinder 42 moves towards one side, the top component of the horizontal section, where the L-shaped baffle 442 is located, in the moving direction of the fan-shaped cylinder 42 drives the L-shaped baffle 442 to rotate along the rotating connection point of the corner and the receiving seat 441 and move upwards, when the L-shaped baffle 442 rotates and moves upwards, the horizontal section pushes the reinforcing plate 92 located on the L-shaped baffle 442 to move upwards, so that the table top 90 is turned over by a certain angle, the supporting legs 91 located at two ends of the reinforcing plate 92 lift up along with the turning of the table top 90 and are separated from the placing groove 3, then the L-shaped baffle 442 drives the lifting reinforcing plate 92 to move with the table top 90, when the fan-shaped cylinder 42 moves towards the other side, the top component opposite to the moving direction of the fan-shaped cylinder 42 is reset to not push the L-shaped baffle 442 any more, so that the reinforcing plate 92 drives the table top 90 and the supporting legs 91 to fall down, and the top component of the other side drives the L-shaped baffle 442 to jack up the reinforcing plate 92 at the other side, and the table 9 moves in the inclined state.
In the process of driving the fan-shaped cylinder 42 to reciprocate by the reciprocation driving group 46, through the cooperation of the two top assemblies and the two L-shaped baffles 442, when the fan-shaped cylinder 42 drives the table 9 to move, the table 9 is lifted at one side of the movement direction of the fan-shaped cylinder 42, so that the situation that the table 9 translates in a state that one side is lifted is simulated.
The test mechanism 4 simulates the reciprocating movement of the table 9 in different states through the conversion of the direct pushing group 43 and the pushing group 44, the test mechanism 4 is matched with the gravity simulation mechanism 7, the horizontal translation of the table 9 in a horizontal state and the horizontal translation of the table 9 in a state that one side is lifted up are realized, the horizontal comprehensive simulation test of the horizontal movement of the upper end of the table 9 is carried out under the condition that whether a bearing exists or not is realized, and the comprehensive test of the stability test of the table 9 is improved through the multidirectional test.
Referring to fig. 6, the top assembly includes two inverted L-shaped strips 470 connected to the conversion shaft 41 and symmetrically arranged along the axial direction thereof, the fan-shaped cylinder 42 is located between the vertical sections of the two inverted L-shaped strips 470, the horizontal section of the inverted L-shaped strips 470 is connected with a wedge-shaped top plate 471, the inclined surface of the top plate 471 contacts with the arc surface of the L-shaped baffle 442, the receiving seat 441 is provided with a rectangular through slot, and the top of the top plate 471 is provided with balls (not shown in the figure).
After the pushing group 44 moves to the testing station, the reciprocating driving group 46 drives the fan-shaped cylinder 42 to axially reciprocate along the conversion shaft 41: when the fan-shaped cylinder 42 moves towards one side, the corresponding inverted L-shaped strip 470 drives the top plate 471 to be inserted between the L-shaped baffle 442 and the receiving seat 441 towards the moving direction of the fan-shaped cylinder 42, so that the L-shaped baffle 442 rotates along the rotating connection point of the corner and the receiving seat 441 and moves upwards, the horizontal section of the L-shaped baffle 442 pushes the reinforcing plate 92 positioned on the L-shaped baffle 442 to move upwards when the L-shaped baffle 442 rotates and moves upwards, so that the table top 90 turns over a certain angle, the supporting legs 91 positioned at two ends of the reinforcing plate 92 lift up along with the turning of the table top 90 and are separated from the placing groove 3, the function that the table 9 lifts up on one side of the fan-shaped cylinder 42 in the moving direction is realized, then the L-shaped baffle 442 drives the lifted reinforcing plate 92 and the table top plate 90 to move, and the top plate 471 penetrates into the rectangular through groove, and the movement test is performed after the table 9 lifts up on one side.
When the fan-shaped cylinder 42 moves toward the other side, the L-shaped baffle 442 and the top plate 471 are pushed out from between the L-shaped baffle 442 and the receiving seat 441, the L-shaped baffle 442 is not pushed, the top assembly on the other side is matched with the L-shaped baffle 442 on the other side, and the above-mentioned conditions are repeated to perform a lifting test on the table 9, so that the condition that one side of the moving direction is lifted by a certain angle and then the table 9 is pulled in the use process is simulated.
Referring to fig. 3 and 5, the reciprocating driving set 46 includes a u-shaped frame 460 slidably connected between opposite sides of horizontal sections of the two support tables 2, racks 461 are mounted at tops of two opposite ends of the u-shaped frame 460, a rotating shaft 462 is rotatably connected between the horizontal sections of the two support tables 2, gears 463 symmetrically arranged along an axial direction of the rotating shaft 462 are fixedly sleeved on the rotating shaft 462, the gears 463 are meshed with the racks 461 for transmission, a cylinder 464 is mounted on one of the lugs 40, a telescopic end of the cylinder 464 is connected with the u-shaped frame 460, two sets of toggle assemblies arranged in a V-shape are disposed on a side wall of the rotating shaft 462, each toggle assembly is composed of a bracket 465 connected with the rotating shaft 462 and toggle rollers 466 rotatably connected with the bracket 465, a fixing plate 467 is mounted at a middle part of two planes circumferentially arranged along the converting shaft 41, and the fixing plate 467 is located between the two toggle rollers 466.
The cylinder 464 pushes the U-shaped frame 460 to reciprocate, the U-shaped frame 460 drives the rack 461 to reciprocate and to be meshed with the gear 463 for transmission, the gear 463 drives the rotating shaft 462 to reciprocate, the rotating shaft 462 drives the poking rollers 466 to rotate through the support 465 in the rotating process, when the rotating shaft 462 rotates positively, one poking roller 466 contacts with the fixed plate 467, the poking rollers 466 push the sector cylinder 42 to move to one side along the axis of the conversion shaft 41 through the fixed plate 467, and when the rotating shaft 462 rotates reversely, the other poking roller 466 contacts with the fixed plate 467 and pushes the sector cylinder 42 to move to the other side, so that the reciprocating movement function of the sector cylinder 42 is realized.
Referring to fig. 2, the conversion adjustment set 45 includes a clamping block 450 installed after one end of the conversion shaft 41 penetrates through the ear seat 40 and uniformly distributed along the circumferential wall thereof, a rotating handle is installed on the conversion shaft 41, the rotating handle is used for driving the conversion shaft 41 to rotate, a pull ring 451 is sleeved on the conversion shaft 41, an inserting rod 452 uniformly distributed along the circumferential direction of the pull ring 451 is installed on one side of the pull ring 451, which is close to the ear seat 40, the inserting rod 452 is in sliding connection with the ear seat 40, and a type clamping seat 453 connected with the clamping block 450 in a clamping manner is installed on the inserting rod 452.
Pulling the pull ring 451 drives the type clamping seat 453 to move away from the clamping block 450 through the inserting rod 452, after the clamping block 450 is separated from the type clamping seat 453, the rotation of the conversion shaft 41 is not limited any more, at the moment, the inserting rod 452 is still inserted into the ear seat 40, and then the conversion shaft 41 can be rotated to drive the fan-shaped cylinder 42 to rotate, so that the position conversion adjustment is performed on the direct pushing group 43 and the pushing group 44.
Referring to fig. 1 and 4, the accommodating groove 3 is provided with accommodating grooves 30 symmetrically arranged along the length direction of the accommodating groove 3, the buffer baffle plates 32 are slidably connected in the accommodating groove 30, a buffer spring 31 is installed between the buffer baffle plates 32 and the accommodating groove 30, two supporting legs 91 positioned in the accommodating groove 3 are positioned between the two buffer baffle plates 32, and the buffer baffle plates 32 and the buffer spring 31 cooperate to buffer the reciprocating force of the table 9, so that the problem that the test result of the table 9 is affected due to the fact that the table 9 moves and deviates due to the large inertia force in the reciprocating test process of the table 9 is avoided.
During operation, the supporting legs 91 of the table 9 are placed in the placement grooves 3, and then the table 9 is limited through the limiting mechanism 8, so that the table 9 is prevented from being laterally turned due to the fact that the table 9 is affected by friction between the supporting legs 91 and the placement grooves 3 in the testing process.
Then the fan-shaped cylinder 42 is driven to rotate by the conversion shaft 41, the fan-shaped cylinder 42 drives the direct pushing group 43 and the pushing group 44 to rotate, when the direct pushing group 43 rotates towards the test station, the reciprocating driving group 46 drives the fan-shaped cylinder 42 to axially reciprocate along the conversion shaft 41, and the fan-shaped cylinder 42 pushes the table 9 to reciprocate by the clamping plate 431 in the moving process, so that the stability between the table top 90 and the supporting legs 91 is tested when the table 9 translates in a horizontal state.
When the pushing group 44 moves to the testing station, in the process of driving the fan-shaped cylinder 42 to reciprocate by the reciprocating driving group 46, the two top components are matched with the two L-shaped baffles 442, so that when the fan-shaped cylinder 42 drives the table 9 to move, the table 9 is lifted at one side of the movement direction of the fan-shaped cylinder 42, and the situation that the table 9 translates in a state that one side is lifted is simulated.
And the stability of the table 9 in reciprocating movement with the object being carried can be tested when the gravity simulation mechanism 7 is moved onto the table top 90.
The test mechanism 4 simulates the table 9 to reciprocate under different states through the conversion of the direct pushing group 43 and the pushing group 44, the test mechanism 4 is matched with the gravity simulation mechanism 7, the table 9 translates under the horizontal state, the table 9 translates under the state that one side is lifted, the horizontal table 9 carries out the comprehensive simulation test of horizontal movement under the condition that the bearing object exists or not, and the comprehensive test of the stability test of the table 9 is improved through the multi-direction test.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," 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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered in the scope of the present invention.
Claims (5)
1. A device for testing the stability of wooden table and chair furniture, comprising:
the test device comprises a connecting base (1), wherein supporting tables (2) symmetrically arranged along the width direction of the connecting base (1) are arranged on the connecting base (1), the supporting tables (2) are L-shaped, the horizontal sections of the two supporting tables (2) are provided with placing grooves (3), and the top of the connecting base (1) is provided with a test mechanism (4);
the tops of the two supporting tables (2) are provided with fixing frames (5), a cross (6) sliding up and down is connected between the two fixing frames (5), and the middle part of the cross (6) is connected with a gravity simulation mechanism (7) sliding along the length direction of the connecting base (1); a limiting mechanism (8) is arranged between the vertical sections of the two supporting tables (2);
the testing mechanism (4) comprises ear seats (40) which are arranged at the top of the connecting base (1) and symmetrically arranged along the length direction of the ear seats, a conversion shaft (41) is rotationally connected between the two ear seats (40), a fan-shaped cylinder (42) is sleeved on the conversion shaft (41), the conversion shaft (41) is connected with the fan-shaped cylinder (42) through spline fit, a straight pushing group (43) and a pushing group (44) which are vertically arranged are arranged on the arc-shaped side wall of the fan-shaped cylinder (42), a conversion adjusting group (45) is arranged between one end of the conversion shaft (41) and one ear seat (40), and a reciprocating driving group (46) which drives the fan-shaped cylinder (42) to axially reciprocate along the conversion shaft (41) is connected between the horizontal sections of the two supporting tables (2);
the straight pushing group (43) comprises two connecting blocks (430) which are connected to the arc-shaped side wall of the fan-shaped cylinder (42) and are symmetrically arranged along the axial direction of the fan-shaped cylinder, and clamping plates (431) which are symmetrically arranged along the axial direction of the fan-shaped cylinder (42) are arranged on the connecting blocks (430);
the pushing group (44) comprises two fixed blocks (440) which are connected to the arc-shaped side wall of the fan-shaped cylinder (42) and are symmetrically arranged along the axial direction of the fan-shaped cylinder, a bearing seat (441) is arranged on the fixed blocks (440), an L-shaped baffle (442) is rotatably arranged on the bearing seat (441) through a pin shaft, meanwhile, the pin shaft is connected with the bearing seat (441) in an up-down sliding manner, the lower side of the horizontal section of the L-shaped baffle (442) is arc-shaped, and a top assembly is connected to the conversion shaft (41);
the straight pushing group (43) is used for simulating and testing the state of the flat pushing table (9), the pushing group (44) is used for simulating and testing the state of the table (9) pushed after one side of the table (9) is lifted upwards, and the conversion adjusting group (45) is used for carrying out position conversion and adjustment on the straight pushing group (43) and the pushing group (44);
the gravity simulation mechanism (7) comprises a T-shaped groove (70) formed in the bottom of the cross (6), a T-shaped seat (71) is connected in the T-shaped groove (70) in a sliding manner, a storage box (72) is mounted at the bottom of the T-shaped seat (71), a plurality of storage cavities (73) which are uniformly distributed from top to bottom are formed in the storage box (72), rectangular through grooves (74) which are uniformly distributed from top to bottom and are communicated with the storage cavities (73) one by one are formed in the storage box (72), inserting plates (75) are mounted on the inner walls of the two sides of the storage cavities (73) which are distributed along the length direction of the storage cavities, balancing weights (76) are placed in the storage cavities (73), inserting grooves which are in plug-in fit with the inserting plates (75) are formed in the two sides of the balancing weights (76), a pull handle (77) is mounted on one side, which is close to the rectangular through groove (74), limit grooves (78) are formed in the top of the balancing weights (76), mounting grooves (79) which are uniformly distributed from top to bottom and are communicated with the storage cavities (73), and the two sides of the storage cavities (73) are connected with one by one, and the two sides of the limit stops (78) are connected with the L-shaped blocks in an inverted L-shaped groove mode;
stop gear (8) are including seting up guide and move groove (80) at two vertical section opposite sides of brace table (2), guide and move groove (80) internal connection have upper and lower gliding support clamp plate (81), are connected with between support clamp plate (81) and guide and move groove (80) and support pressure spring (82), support the bottom of clamp plate (81) and install anti-deflection piece (83), and one of them one side rotation of anti-deflection piece (83) is connected with bull stick (84), installs spacing (85) on bull stick (84).
2. The device for testing the stability of wooden table and chair furniture according to claim 1, wherein: the reciprocating driving group (46) comprises a U-shaped frame (460) which is connected to opposite faces of horizontal sections of two supporting tables (2) in a sliding mode, racks (461) are arranged at the tops of two opposite ends of the U-shaped frame (460), a rotating shaft (462) is connected between the horizontal sections of the two supporting tables (2) in a rotating mode, gears (463) which are symmetrically arranged along the axial direction of the rotating shaft are fixedly sleeved on the rotating shaft (462), the gears (463) are meshed with the racks (461) in a transmission mode, one lug (40) is provided with an air cylinder (464), the telescopic ends of the air cylinder (464) are connected with the U-shaped frame (460), two groups of stirring assemblies which are arranged in a V-shaped mode are arranged on the side wall of the rotating shaft (462), each stirring assembly is composed of a support (465) connected with the rotating shaft (462) and stirring rollers (466) which are connected in a rotating mode, fixing plates (467) are arranged in the middle of two planes which are circumferentially arranged along the converting shaft (41), and the fixing plates (467) are located between the two stirring rollers (466).
3. The device for testing the stability of wooden table and chair furniture according to claim 2, wherein: the top assembly comprises two inverted L-shaped strips (470) which are connected to the conversion shaft (41) and are symmetrically arranged along the axial direction of the conversion shaft, the fan-shaped cylinder (42) is located between the vertical sections of the two inverted L-shaped strips (470), the horizontal section of the inverted L-shaped strips (470) is connected with a top plate (471), one end, close to the L-shaped baffle (442), of the top plate (471) is an inclined surface, the inclined surface of the top plate (471) is in contact with the arc-shaped surface of the L-shaped baffle (442), and a rectangular penetrating groove is formed in the bearing seat (441).
4. The device for testing the stability of wooden table and chair furniture according to claim 1, wherein: the conversion adjusting group (45) comprises a clamping block (450) which is arranged after one end of a conversion shaft (41) penetrates through an ear seat (40) and is uniformly distributed along the annular wall of the conversion shaft, a pull ring (451) is sleeved on the conversion shaft (41), a plug rod (452) which is uniformly distributed along the circumferential direction of the pull ring (451) is arranged on one side, close to the ear seat (40), of the pull ring, the plug rod (452) is in sliding connection with the ear seat (40), and a type clamping seat (453) which is connected with the clamping block (450) in a clamping mode is arranged on the plug rod (452).
5. The device for testing the stability of wooden table and chair furniture according to claim 1, wherein: the accommodating groove (30) symmetrically arranged along the length direction of the accommodating groove is formed in the accommodating groove (3), the buffer baffle plate (32) is connected in a sliding mode in the accommodating groove (30), and the buffer spring (31) is arranged between the buffer baffle plate (32) and the accommodating groove (30).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410015316.1A CN117538087B (en) | 2024-01-05 | 2024-01-05 | Stability testing device for wooden table and chair furniture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410015316.1A CN117538087B (en) | 2024-01-05 | 2024-01-05 | Stability testing device for wooden table and chair furniture |
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| CN117538087A CN117538087A (en) | 2024-02-09 |
| CN117538087B true CN117538087B (en) | 2024-03-29 |
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| CN2414412Y (en) * | 2000-03-16 | 2001-01-10 | 李世林 | Portable multi-function furniture testing instrument |
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| JP2020118520A (en) * | 2019-01-23 | 2020-08-06 | 日本発條株式会社 | Seat tester and seat testing method |
| CN216309439U (en) * | 2021-11-19 | 2022-04-15 | 苏州春分检测技术服务有限公司 | Fatigue testing device for automobile seat |
| CN219416687U (en) * | 2023-03-21 | 2023-07-25 | 宁波凯祥家居有限公司 | Dining chair leg durability test machine |
| CN117232813A (en) * | 2023-11-13 | 2023-12-15 | 华中科技大学同济医学院附属同济医院 | Fracture fixer performance detection equipment |
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2024
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2414412Y (en) * | 2000-03-16 | 2001-01-10 | 李世林 | Portable multi-function furniture testing instrument |
| CN207366223U (en) * | 2017-06-27 | 2018-05-15 | 西南石油大学 | A kind of table structure apparatus for testing mechanical |
| JP2020118520A (en) * | 2019-01-23 | 2020-08-06 | 日本発條株式会社 | Seat tester and seat testing method |
| CN110320118A (en) * | 2019-07-09 | 2019-10-11 | 泉州市杰斯特仪器设备有限公司 | A kind of novel Furniture strength test device |
| CN216309439U (en) * | 2021-11-19 | 2022-04-15 | 苏州春分检测技术服务有限公司 | Fatigue testing device for automobile seat |
| CN219416687U (en) * | 2023-03-21 | 2023-07-25 | 宁波凯祥家居有限公司 | Dining chair leg durability test machine |
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|---|---|
| CN117538087A (en) | 2024-02-09 |
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