CN209858362U

CN209858362U - Sofa structural strength testing arrangement

Info

Publication number: CN209858362U
Application number: CN201920571131.3U
Authority: CN
Inventors: 郑坚荣
Original assignee: Shenzhen Ouluo Furniture Co Ltd
Current assignee: Shenzhen Ouluo Furniture Co Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2019-12-27
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to a sofa structural strength testing arrangement for structural strength to the sofa tests. The lifting device comprises a mounting frame and a mounting platform, the mounting frame is fixed on a ceiling and provided with pulleys, the mounting platform is mounted on the ground, a stepping motor is arranged on the mounting platform in a sliding mode and connected with a roller, a steel cable is wound on the roller and is in sliding fit with the pulleys and fixedly connected to the impact block. The standing groove has been seted up at the middle part of striking piece, installs a plurality of weights in the standing groove. When the structural strength of the sofa is tested, the stepping motor is started to lift the impact block to a certain height, the sofa is placed below the impact block, the stepping motor is slid, a rotating shaft of the stepping motor is separated from the rolling shaft, and the impact block performs free-fall motion to test the impact of the sofa. The utility model discloses can increase or reduce the weight in order to change the weight of striking piece, facilitate the use according to the difference of test object.

Description

Sofa structural strength testing arrangement

Technical Field

The utility model belongs to the technical field of intensity detection device's technique and specifically relates to a sofa structural strength testing arrangement is related to.

Background

The origin of the sofa can be traced back to the ancient Egypt of about 2000 before the first Gongyuan, the soft package sofa appears from the end of the sixteen century to the beginning of the seventeen century, and the sofa at that time mainly uses natural elastic materials such as horsehair, bird feather, plant fluff and the like as fillers and is externally covered with fabrics such as velvet, embroidery and the like so as to form a soft human body contact surface.

The existing sofa is generally composed of an inner frame and an outer coating material, wherein the inner frame is generally divided into a solid wood frame and a metal frame, the outer coating material is generally filled with materials such as sponge, down or artificial cotton, and is hermetically wrapped by outer skins such as cowhide or artificial leather. The sofa has the characteristics of comfort, softness, good appearance and the like, and is good in use experience.

However, the frame of the sofa has some differences, and when a new sofa is designed, the structural strength of the sofa generally needs to be tested, and how to test the structural strength of the sofa is a problem which needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sofa structural strength testing arrangement, its advantage lies in: the structural strength of the sofa is tested through impact, and the sofa is convenient to use.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a sofa structural strength testing arrangement, includes elevating gear and striking piece, elevating gear includes mounting bracket and mount table, mounting bracket fixed mounting is on the ceiling, be provided with a pulley in the mounting bracket, mount table fixed mounting is in ground, the one end slidable mounting of mount table has further step motor, be provided with the fixed block in step motor's the pivot, the other end of mount table is provided with two mounting panels, two it is provided with a roller bearing to rotate between the mounting panel, the one end of roller bearing seted up with fixed block matched with fixed slot, the winding has the cable wire on the roller bearing, the cable wire is kept away from the one end of roller bearing is connected with a striking piece.

By adopting the technical scheme, when the structural strength of the sofa is tested, the stepping motor is pushed, the fixed block on the stepping motor is embedded in the fixed groove formed in the rolling shaft, the stepping motor is started to drive the rolling shaft to rotate, the steel cable is wound to the outer side of the rolling shaft through the pulley, the impact block is pulled to be in the air, the stepping motor is turned off, the rolling shaft stops rotating, the sofa to be tested is placed under the impact block, the fixed block slides out of the fixed groove by the sliding stepping motor, and the impact block freely falls to move and impact on the sofa to test the structural strength of the sofa; the stepping motor can prevent the rotating shaft of the motor from reversing due to the gravity action of the impact block, so that the impact block can be suspended in the air.

The utility model discloses further set up to: the edge of fixed block is provided with the non slipping spur, the edge of fixed slot seted up with non slipping spur matched with anti slipping slot, the non slipping spur inlays to be located in the anti slipping slot.

Through adopting above-mentioned technical scheme, non slipping spur and non slipping groove can prevent to take place to skid between the pivot of roller bearing and step motor when pulling up the striking block, guarantee to pull the striking block to half empty.

The utility model discloses further set up to: the two ends of the rolling shaft are provided with a limiting piece, and the two limiting pieces are located between the two mounting plates.

Through adopting above-mentioned technical scheme, spacing piece is spacing to the winding position of cable wire, avoids the cable wire to roll into the gap department between roller bearing and the mounting panel and the card is dead in winding process.

The utility model discloses further set up to: the roller is provided with a fixing ring which is positioned between the two limiting pieces, and one end of the steel cable, which is far away from the impact block, is fixedly connected with the fixing ring.

Through adopting above-mentioned technical scheme, solid fixed ring makes cable wire fixed connection in roller bearing, prevents to strike the piece and roll and lead to the cable wire to break away from the roller bearing after falling to the sofa by a pound, guarantees that the cable wire can normally withdraw, facilitates the use.

The utility model discloses further set up to: the length of the steel cable is larger than the distance between the mounting rack and the ground.

By adopting the technical scheme, the length of the steel cable is larger than the distance between the mounting frame and the ground, so that the steel cable is still abundant when the impact block impacts the sofa, the steel cable is prevented from being tightened after impacting the sofa to pull the rolling shaft, the rolling shaft is protected, the rolling shaft is prevented from being damaged, and the service life is prolonged.

The utility model discloses further set up to: the upper surface of striking piece has seted up the standing groove, be provided with a plurality of weights in the standing groove.

Through adopting above-mentioned technical scheme, set up the standing groove at the upper surface of striking the piece, conveniently change the weight of striking the piece according to the difference of test object, make the test more accurate, convenient to use.

The utility model discloses further set up to: the bottom of a plurality of weight all sets up flutedly, and is a plurality of the top of weight all is provided with the handle, and is a plurality of the weight stack is placed in the standing groove.

Through adopting above-mentioned technical scheme, in setting up the convenience and putting into the weight or taking out the standing groove, the recess can avoid the weight to lead to the fact the hindrance each other when stacking, makes and can fold together firmly between the weight, and the test of being convenient for is used.

The utility model discloses further set up to: the notch of the placing groove is provided with a cover plate, one side of the cover plate is rotatably connected to the edge of the notch of the placing groove, and the other side of the cover plate is fixedly connected to the impact block through screws.

Through adopting above-mentioned technical scheme, the apron plays limiting displacement to the weight, avoids striking the piece and topples over and lead to the weight to scatter after striking the sofa, prevents that the weight from rolling and causing the potential safety hazard.

The utility model discloses further set up to: the steel cable is far away from one end of the roller, a connecting ring is arranged at the edge of the impact block, a plurality of hanging rings are arranged on the hanging rings, and a connecting cable is arranged on each hanging ring and is connected with the connecting ring at one end of the connecting cable far away from the hanging rings.

By adopting the technical scheme, the arrangement of the connecting ring and the connecting cable ensures that the impact barrel is suspended in a half-empty state and keeps balance, so that the impact barrel can impact through the bottom surface of the impact barrel when impacting the sofa, and the accuracy of a test result is ensured.

The utility model discloses further set up to: the mounting table is provided with a slide rail, the lower surface of the stepping motor is provided with a slide bar, and the slide bar is embedded in the slide rail.

Through adopting above-mentioned technical scheme, the setting up of slide rail and draw runner has reduced the frictional force between step motor and the mount table, makes step motor slide more easily, also plays certain limiting displacement to step motor's gliding direction simultaneously, makes the last fixed block of step motor inlay more easily and establishes in the fixed slot, convenient to use.

To sum up, the utility model discloses a beneficial technological effect does:

1. the stepping motor can ensure that the impact block does not fall down due to the fact that a rotating shaft of the motor is turned over after the impact block is lifted into the air, and testing is facilitated;

2. the arrangement of the anti-skidding block and the anti-skidding groove can prevent the slipping between the rolling shaft and the rotating shaft of the stepping motor when the impact block is pulled up;

3. the fixing ring can prevent the steel cable from separating from the roller due to rolling when the impact block impacts the sofa, so that the steel cable can be conveniently retracted;

4. the weight of striking piece is convenient for change according to the difference of test object to the setting of standing groove and weight, convenient test.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of another view angle of the present invention.

Fig. 3 is a schematic view of the connection relationship between the roller and the stepping motor.

Fig. 4 is a schematic view of the impact block without a cover plate.

Fig. 5 is a schematic structural view of the weight.

Fig. 6 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 7 is a partially enlarged schematic view of a portion B in fig. 3.

In the figure, 1, a lifting device; 11. a mounting frame; 111. a pulley; 12. an installation table; 121. a slide rail; 122. mounting a plate; 2. a stepping motor; 21. a fixed block; 211. anti-skid blocks; 22. a slide bar; 3. a roller; 31. fixing grooves; 311. an anti-slip groove; 32. a limiting sheet; 33. a fixing ring; 4. a steel cord; 41. a connecting ring; 5. an impact block; 51. a placement groove; 52. a cover plate; 53. hanging a ring; 54. a connecting cable; 6. a weight; 61. a groove; 62. a handle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a sofa structural strength testing device, including elevating gear 1 and the striking piece 5 of a cylindrical structure.

Referring to fig. 2, 3 and 7, the lifting device 1 includes a mounting frame 11 and a mounting platform 12, the mounting frame 11 is fixedly mounted on the ceiling through screws, a pulley 111 is mounted on the mounting frame 11, and the pulley 111 is rotatably connected to the mounting frame 11 through a bearing. The mounting table 12 is mounted on the ground, the stepping motor 2 is mounted on the mounting table 12, a slide rail 121 with a T-shaped cross section is formed in the upper surface of the mounting table 12, a slide bar 22 matched with the slide rail 121 is mounted at the bottom of the stepping motor 2, and the slide bar 22 is slidably embedded in the slide rail 121, so that the stepping motor 2 can be slidably connected to the mounting table 12. Two mounting plates 122 are welded at the other end of the upper surface of the mounting table 12, a roller 3 is arranged between the two mounting plates 122, and two ends of the roller 3 are rotatably connected to the two mounting plates 122 through bearings respectively. A circular fixing groove 31 is formed in one end of the roller 3, a fixing block 21 matched with the fixing groove 31 is installed on a rotating shaft of the stepping motor 2, and the roller 3 and the stepping motor 2 are connected by embedding the fixing block 21 in the fixing groove 31. The edge symmetry of fixed block 21 is provided with the non slipping spur 211 of two rectangles, and the edge of fixed slot 31 is seted up with fixed block 21 matched with anti slipping spur 311, and non slipping spur 211 inlays and locates in the anti slipping spur 311.

Referring to fig. 2 and 6, the roller 3 is wound with the wire rope 4, and a circular connecting ring 41 is disposed at an end of the wire rope 4 away from the roller 3. Four circular hanging rings 53 are uniformly arranged at the edge of the upper surface of the impact block 5 at intervals, each hanging ring 53 is fixedly connected with a connecting cable 54, and one end of each connecting cable 54 far away from the impact block 5 is fixedly connected with the connecting ring 41.

When the structural strength of the sofa is tested, the stepping motor 2 is pushed, the fixing block 21 on the stepping motor 2 is embedded in the fixing groove 31, and the anti-skid block 211 is embedded in the anti-skid groove 311. The sliding rail 121 and the sliding strip 22 reduce the friction force between the stepping motor 2 and the mounting table 12, so that the stepping motor 2 can slide more easily, and meanwhile, a certain limiting effect is achieved on the sliding direction of the stepping motor 2, so that the fixing block 21 can be embedded into the fixing groove 31 more easily.

The stepping motor 2 is started, the rolling shaft 3 is driven to rotate, the steel cable 4 is wound on the outer wall of the rolling shaft 3 through the pulley 111, the impact block 5 is pulled to be half-hollow, the stepping motor 2 is closed, the rolling shaft 3 stops rotating, the sofa to be tested is placed under the impact block 5, the fixed block 21 slides out of the fixed groove 31 through the sliding stepping motor 2, and the impact block 5 is enabled to freely fall and impact on the sofa to test the structural strength of the sofa. The stepping motor 2 can prevent the rotating shaft of the motor from reversing due to the gravity action of the impact block 5, so that the impact block 5 can be suspended in the air; the provision of the anti-slip blocks 211 and the anti-slip grooves 311 prevents the roller 3 from slipping when the strike blocks 5 are pulled up. The arrangement of the connecting ring 41 and the connecting cable 54 ensures that the impact barrel is suspended in a half-empty state and keeps balance, so that the impact barrel is impacted through the bottom surface of the impact barrel when impacting the sofa, and the accuracy of a test result is ensured.

Referring to fig. 3, two ends of the roller 3 are both provided with a circular limiting piece 32, and the two limiting pieces 32 are located between the two mounting plates 122 and are fixedly connected to the roller 3. The limiting piece 32 can limit the winding position of the steel cable 4, and the steel cable 4 is prevented from being wound in a gap between the roller 3 and the mounting plate 122 and being clamped in the winding process. The roller 3 is further provided with a semicircular fixing ring 33, the fixing ring 33 is located between the two limiting pieces 32, and one end of the steel cable 4 is fixedly connected to the fixing ring 33. The fixing ring 33 enables the steel cable 4 to be fixedly connected with the roller 3, so that the steel cable 4 is prevented from being separated from the roller 3 due to the fact that the striking block 5 rolls after being hit to the sofa, the steel cable 4 can be normally retracted, and the sofa is convenient to use. The total length of cable wire 4 is greater than the distance between mounting bracket 11 and the ground, guarantees that striking block 5 cable wire 4 still partly twines on roller bearing 3 when striking the sofa, avoids cable wire 4 to strike tight and produce huge pulling force to roller bearing 3 behind the sofa, plays the guard action to roller bearing 3, prevents that roller bearing 3 from damaging increase of service life.

Referring to fig. 4 and 5, a circular placing groove 51 is formed in the middle of the striking block 5, and a plurality of weights 6 are placed in the placing groove 51. A circular shape recess 61 has all been seted up to the bottom of every weight 6, and the top of every weight 6 all is provided with handle 62, and when a plurality of weights 6 superpose each other and place in standing groove 51, handle 62 inlays and locates in the recess 61. The placing groove 51 and the weight 6 are convenient to change the weight of the impact block 5 according to different test objects, so that the test is more accurate and convenient to use. The groove 61 can prevent the weights 6 from being blocked when being stacked together, so that the weights 6 can be stably stacked together, and the test and the use are convenient; the handle 62 is provided to facilitate the placement of the weight 6 in the placement groove 51 or the removal of the weight from the placement groove 51. The impact block 5 and the weight 6 are both made of rubber materials, so that the safety in use is improved.

Referring to fig. 1, a circular cover plate 52 is rotatably coupled above the placement groove 51, one end of the cover plate 52 is rotatably coupled to the edge of the notch of the placement groove 51 by a hinge, and the other end of the cover plate 52 is fixed to the upper surface of the impact block 5 by a screw. Put into standing groove 51 back with weight 6 in, screw the screw and fix apron 52, apron 52 plays limiting displacement to weight 6, avoids striking block 5 to topple over and lead to weight 6 to scatter after striking the sofa, prevents that weight 6 from rolling and causing the potential safety hazard.

The implementation principle of the embodiment is as follows: when testing sofa structural strength, promote step motor 2 and make fixed block 21 inlay and locate in fixed slot 31, drive roller bearing 3 through opening step motor 2 and promote striking block 5 to a take the altitude, promote motor once more and make fixed block 21 roll-off fixed slot 31, striking block 5 is the free fall motion and strikes the sofa. The anti-slip block 211 and the anti-slip groove 311 are arranged to prevent the roller 3 from slipping with the rotating shaft of the stepping motor 2 when the striking block 5 is pulled up. Through set up standing groove 51 on striking piece 5, install weight 6 in standing groove 51, be convenient for change the weight of striking piece 5 according to the difference of test object, facilitate the use.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a sofa structural strength testing arrangement which characterized in that: comprises a lifting device (1) and an impact block (5), wherein the lifting device (1) comprises a mounting rack (11) and a mounting platform (12), the mounting rack (11) is fixedly arranged on a ceiling, a pulley (111) is arranged in the mounting rack (11), the mounting table (12) is fixedly mounted on the ground, one end of the mounting table (12) is slidably mounted with a stepping motor (2), a fixed block (21) is arranged on a rotating shaft of the stepping motor (2), two mounting plates (122) are arranged at the other end of the mounting table (12), a roller (3) is rotatably arranged between the two mounting plates (122), one end of the rolling shaft (3) is provided with a fixing groove (31) matched with the fixing block (21), the steel cable (4) is wound on the rolling shaft (3), and one end, far away from the rolling shaft (3), of the steel cable (4) is connected with an impact block (5).

2. The sofa structural strength testing device of claim 1, wherein: the edge of fixed block (21) is provided with non-slip shoes (211), the edge of fixed slot (31) seted up with non-slip shoes (211) matched with anti-skidding groove (311), non-slip shoes (211) are inlayed and are located in anti-skidding groove (311).

3. The sofa structural strength testing device of claim 1, wherein: both ends of roller bearing (3) all are provided with a spacing piece (32), two spacing piece (32) are located two between mounting panel (122).

4. The sofa structural strength testing device of claim 3, wherein: be provided with a solid fixed ring (33) on roller bearing (3), gu fixed ring (33) is located two between spacing piece (32), cable wire (4) are kept away from the one end fixed connection of striking piece (5) in gu fixed ring (33).

5. The sofa structural strength testing device of claim 1, wherein: the length of the steel cable (4) is larger than the distance between the mounting rack (11) and the ground.

6. The sofa structural strength testing device of claim 1, wherein: the upper surface of the impact block (5) is provided with a placing groove (51), and a plurality of weights (6) are arranged in the placing groove (51).

7. The sofa structural strength testing device of claim 6, wherein: the bottom of a plurality of weights (6) is all seted up fluted (61), and a plurality of the top of weight (6) all is provided with handle (62), and a plurality of weight (6) stack is placed in standing groove (51).

8. The sofa structural strength testing device of claim 6, wherein: a cover plate (52) is arranged at the notch of the placing groove (51), one side of the cover plate (52) is rotatably connected to the edge of the notch of the placing groove (51), and the other side of the cover plate (52) is fixedly connected to the impact block (5) through screws.

9. The sofa structural strength testing device of claim 1, wherein: one end, far away from roller bearing (3), of cable wire (4) is provided with go-between (41), the edge of striking piece (5) is provided with a plurality of links (53), and is a plurality of all be provided with a connecting cable (54) on link (53), it is a plurality of connecting cable (54) are kept away from the one end of link (53) all connect in go-between (41).

10. The sofa structural strength testing device of claim 1, wherein: the mounting table (12) is provided with a sliding rail (121), the lower surface of the stepping motor (2) is provided with a sliding strip (22), and the sliding strip (22) is embedded in the sliding rail (121).