Sofa production elasticity detection equipment

Abstract

The invention belongs to the technical field of elasticity detection, and particularly discloses sofa production elasticity detection equipment which comprises a bottom plate, a sofa stabilizing mechanism is fixedly connected to the middle of the top end of the bottom plate, the sofa stabilizing mechanism is used for stabilizing a sofa placed on the sofa stabilizing mechanism, and a lifting driving mechanism is fixedly connected to one side of the top of the bottom plate. An elastic detection mechanism is arranged outside the lifting driving mechanism, the lifting driving mechanism can drive the elastic detection mechanism to ascend and descend, the elastic detection mechanism is used for detecting the elasticity of the sofa, and a rotation positioning mechanism is arranged outside the elastic detection mechanism. Through the sofa stabilizing mechanism, the sofa can be stabilized when being placed on the sofa stabilizing mechanism, and the sofa is fixed more stably along with the increase of the detection force, so that the sofa is prevented from shifting during detection, the detection result can be prevented from deviating, and the sofa elasticity detection accuracy is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of elasticity detection, and specifically discloses an elasticity detection device for sofa production. Background Art

[0002] Sofa elasticity testing is very important for both manufacturers and consumers. Manufacturers can use testing to ensure product quality, and consumers can use testing to choose more comfortable, durable and safer sofa products.

[0003] When sofa manufacturers conduct sofa testing, they need to use sofa production elasticity testing equipment to test the elasticity of the sofa. The sofa elasticity testing equipment in the prior art generally places the sofa directly on the testing equipment when conducting sofa testing. However, when the testing equipment applies force to the sofa, it is easy to cause the sofa to move, resulting in deviations in the sofa elasticity testing results, thereby reducing the accuracy of the sofa elasticity testing. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a sofa production elasticity detection device to solve the problem that the sofa is prone to displacement during the elasticity detection of the sofa in the prior art, resulting in deviation in the sofa elasticity detection result and reducing the accuracy of the sofa elasticity detection.

[0005] To achieve the above purpose, the present invention provides a sofa production elasticity detection device, comprising a bottom plate, a sofa stabilizing mechanism is fixedly connected to the middle of the top of the bottom plate, the sofa stabilizing mechanism is used to stabilize the sofa placed thereon, a lifting and driving mechanism is fixedly connected to one side of the top of the bottom plate, an elasticity detection mechanism is arranged outside the lifting and driving mechanism, the lifting and driving mechanism can drive the elasticity detection mechanism to rise and fall, the elasticity detection mechanism is used to detect the elasticity of the sofa, and a rotation positioning mechanism is arranged outside the elasticity detection mechanism, the rotation positioning mechanism is used to fix the angle of the elasticity detection mechanism after rotation.

[0006] In the above technical solution, preferably, the sofa stabilization mechanism includes a bottom cylinder, the bottom of the bottom cylinder is fixedly connected to the top middle part of the bottom plate, the interior of the bottom cylinder is slidably connected to a limiting ring, the top of the limiting ring is fixedly connected to a top cylinder, the inner bottom end of the bottom cylinder is fixedly connected to a mounting seat, the top of the mounting seat is fixedly connected to a return spring, the outside of the bottom cylinder is fixedly connected to a plurality of basic cylinders, the inside of the basic cylinder is slidably connected to a limiting piston, the side of the limiting piston away from the bottom cylinder is fixedly connected to an inner rod, a tension spring is fixedly connected between the inside of the inner rod and the inside of the basic cylinder, the bottom of the base cylinder is fixedly connected to a connecting pipe, and the bottoms of the plurality of connecting pipes are fixedly connected to the outer bottom end of the bottom cylinder.

[0007] In the above technical solution, preferably, the lifting drive mechanism includes a mounting column, the bottom of the mounting column is fixedly connected to the top end of the base plate, the inner bottom end of the mounting column is fixedly connected to a motor, the output end of the motor is fixedly connected to a threaded rod, the outer thread of the threaded rod is connected to a moving frame, the inner side of the mounting column is fixedly connected to a limiting rod, one side of the moving frame is internally slidably connected to the outside of the limiting rod, and the top of the threaded rod is rotatably connected to the inner side of the top end of the mounting column.

[0008] In the above technical scheme, preferably, the elastic detection mechanism includes a hydraulic cylinder, the outside of the hydraulic cylinder is fixedly connected to the inside of the moving frame, the output end of the hydraulic cylinder is fixedly connected to a rack column, the bottom of the rack column is fixedly connected to a force sensor 1, the bottom of the force sensor 1 is fixedly connected to a connecting top plate, both ends of the connecting top plate are slidably connected to sliding rods, the outer sleeve of the sliding rod is provided with a buffer spring, a contact plate is fixedly connected between the bottoms of the two sliding rods, the top of the sliding rod is fixedly connected to a limited position circular block, the outer side of the moving frame is fixedly connected to a mounting bent rod, the bottom end of the mounting bent rod is rotatably connected to a mounting plate, the bottom of the mounting plate is fixedly connected to a slide rail, and the mounting The inner side of the mounting plate is rotatably connected to two gears, and the inner sliding connection of the slide rail is provided with a rack sliding column, the rack column and one of the gears are meshingly connected, the top of the rack sliding column and the other gear are meshingly connected, a fitting groove is provided inside the rack sliding column, the inner sliding connection of the fitting groove is limited sliding plate, the outer side of the limited sliding plate is fixedly connected with a connecting sliding column, the outer side of the rack sliding column is fixedly connected with a blocking plate, the side of the connecting sliding column away from the limiting sliding plate is fixedly connected with a force sensor 2, a protection spring is fixedly connected between the blocking plate and the force sensor 2, and the side of the force sensor 2 away from the limiting sliding plate is fixedly connected with a contact pressure plate.

[0009] In the above technical scheme, preferably, the rotation positioning mechanism includes an outer cylinder, a movable block is slidably connected inside the outer cylinder, a connecting rod is fixedly connected to the bottom of the movable block, the bottom of the connecting rod is fixedly connected to the side of the slide rail away from the contact pressure plate, a mounting groove is provided inside the movable block, an ejection spring is fixedly connected to one side of the mounting groove, a limiting disc is slidably connected inside the mounting groove, a locking head is fixedly connected to the side of the limiting disc away from the ejection spring, a plurality of locking holes are provided on the outer wall of the outer cylinder, the locking head is engaged with the locking holes, and the side of the limiting disc away from the locking head is fixedly connected to the side of the ejection spring close to the locking head.

[0010] In the above technical solution, preferably, a protective soft head is fixedly connected to a side of the inner rod away from the bottom tube, and the top of the return spring is fixedly connected to the inner top of the top tube.

[0011] In the above technical solution, preferably, one side of the movable frame is slidably connected to the inner side of the mounting column, and the outer side of the mounting column is fixedly connected with a display screen.

[0012] In the above technical solution, preferably, the top of the movable frame is fixedly connected to a stabilizing frame, and the top and bottom ends of the stabilizing frame are fixedly connected to the top of the hydraulic cylinder.

[0013] In the above technical solution, preferably, one end of the buffer spring is fixedly connected to the bottom of the connecting top plate, and the other end of the buffer spring is fixedly connected to the top of the contact plate.

[0014] In the above technical solution, preferably, the protection spring is sleeved on the outside of the connecting sliding column, and the connecting sliding column passes through a side of the rack sliding column close to the contact pressure plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention can stabilize the sofa when the sofa is placed thereon through the sofa stabilizing mechanism, and the sofa is fixed more stably as the detection force increases, thereby preventing the sofa from shifting during detection, thereby preventing the detection result from deviating and improving the accuracy of the sofa elasticity detection.

[0016] The present invention realizes the detection of the sofa through the elastic detection mechanism, and the entire elastic detection mechanism has only one power unit to realize the simultaneous detection of the seat cushion and the backrest, without the need for multiple power units to cooperate in the detection, thereby reducing the detection cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention; Figure 2 It is a structural schematic diagram of the bottom tube of the present invention; Figure 3 It is a structural schematic diagram of the limiting ring of the present invention; Figure 4 It is a structural schematic diagram of the inner rod of the present invention; Figure 5 It is a structural schematic diagram of the limiting rod of the present invention; Figure 6 It is a structural schematic diagram of the gear of the present invention; Figure 7 It is a structural schematic diagram of the sliding rod of the present invention; Figure 8 It is a structural schematic diagram of the fitting groove of the present invention; Fig. 9 It is a structural schematic diagram of the connecting rod of the present invention; Fig.10 It is a schematic structural diagram of the limiting disc of the present invention.

[0018] In the figure: 1, bottom plate; 2, sofa stabilizing mechanism; 201, bottom cylinder; 202, limiting ring; 203, top cylinder; 204, mounting seat; 205, reset spring; 206, base cylinder; 207, limiting piston; 208, inner rod; 209, tension spring; 210, connecting pipe; 211, protective soft head; 3, lifting and lowering driving mechanism; 301, mounting column; 302, motor; 303, threaded rod; 304, moving frame; 305, limiting rod; 4, elastic detection mechanism; 401, hydraulic cylinder; 402, rack column; 403, force sensor 1; 404, connecting top plate; 405, sliding rod; 406, buffer Spring; 407, contact plate; 408, limit round block; 409, installation bent rod; 410, installation plate; 411, slide rail; 412, gear; 413, rack sliding column; 414, fitting groove; 415, limit sliding plate; 416, connecting sliding column; 417, blocking plate; 418, force sensor 2; 419, protection spring; 420, contact pressure plate; 421, stabilizing frame; 5, rotation positioning mechanism; 501, outer cylinder; 502, movable block; 503, connecting rod; 504, installation groove; 505, ejection spring; 506, limit round piece; 507, snap-fit ​​head; 508, snap-fit ​​hole; 6, display screen. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] like Figure 1-Figure 10 The sofa production elasticity detection device shown includes a base plate 1, a sofa stabilizing mechanism 2 is fixedly connected to the middle of the top of the base plate 1, and the sofa stabilizing mechanism 2 is used to stabilize the sofa placed thereon; a lifting and driving mechanism 3 is fixedly connected to one side of the top of the base plate 1, and an elasticity detection mechanism 4 is arranged outside the lifting and driving mechanism 3, and the lifting and driving mechanism 3 can drive the elasticity detection mechanism 4 to rise and fall, and the elasticity detection mechanism 4 is used to detect the elasticity of the sofa; a rotation positioning mechanism 5 is arranged outside the elasticity detection mechanism 4, and the rotation positioning mechanism 5 is used to fix the angle of the elasticity detection mechanism 4 after rotation.

[0022] The sofa stabilizing mechanism 2 includes a bottom cylinder 201, which provides an installation position. The bottom of the bottom cylinder 201 is fixedly connected to the top middle of the bottom plate 1. The inner sliding connection of the bottom cylinder 201 is a limiting ring 202, which has a limiting function. The top of the limiting ring 202 is fixedly connected to a top cylinder 203, which can be combined with the bottom cylinder 201 to form a liquid-filled space. The inner bottom end of the bottom cylinder 201 is fixedly connected to a mounting seat 204, and the top of the mounting seat 204 is fixedly connected to a return spring 205. The mounting seat 204 can provide a position for installing the return spring 205 and can stabilize the bottom of the return spring 205 to prevent the bottom of the return spring 205 from sliding when it is continuously contracted and expanded. The outer fixing of the bottom cylinder 201 A plurality of base cylinders 206 are connected, and the internal sliding connection of the base cylinder 206 is connected with a limit piston 207, which can play a role of limiting. The side of the limit piston 207 away from the bottom cylinder 201 is fixedly connected with an inner rod 208, and the base cylinder 206 and the inner rod 208 can form a telescopic rod. A tension spring 209 is fixedly connected between the inside of the inner rod 208 and the inside of the base cylinder 206, and the tension spring 209 can drive the inner rod 208 to reset. The bottom of the base cylinder 206 is fixedly connected with a connecting pipe 210, and the connecting pipe 210 can facilitate the passage of liquid. The bottoms of the plurality of connecting pipes 210 are fixedly connected to the external bottom end of the bottom cylinder 201, and the side of the inner rod 208 away from the bottom cylinder 201 is fixedly connected with a protective soft head 211. The protective soft head 21 1 is made of flexible material, so as to protect the sofa. The top of the reset spring 205 is fixedly connected to the inner top of the top tube 203. When the sofa is tested after production, the sofa is first placed on the top of the top tube 203. At this time, the top tube 203 will be squeezed downward under the action of the gravity of the sofa. Since the space between the top tube 203 and the bottom tube 201 is filled with liquid, when the top tube 203 moves downward, it can drive the limit ring 202 to move downward, so as to compress the reset spring 205, and at the same time, it can also press the liquid into the inside of the base tube 206 through the connecting pipe 210, and then it can drive the limit piston 207 and the inner rod 208 to move outward, and then it can drive the protective soft head 211 to move outward through the inner rod 208. , and then it can be against the bottom of the sofa. If one or more of the protective soft heads 211 have touched the inner wall of the sofa, the liquid will flow into other base tubes 206, and the liquid content in the space composed of the bottom tube 201 and the top tube 203 is greater than the liquid content inside the multiple base tubes 206. Therefore, there is no need to worry that the protective soft head 211 cannot be against the inner wall of the sofa due to insufficient liquid content inside the base tube 206. After the protective soft head 211 is against the inner wall of the sofa, it can temporarily keep the sofa stable. When the elastic detection mechanism 4 is pressed on the sofa, it will give the sofa a downward force. At this time, under the action of the sofa gravity and the detection pressure, more liquid in the space composed of the top tube 203 and the bottom tube 201 flows into the base tube 206.Thus, the protective soft head 211 can be pressed more firmly against the inner wall of the sofa, so the sofa will not shake violently, making the detection result more accurate.

[0023] The lifting and lowering mechanism 3 includes a mounting column 301, which provides a mounting position. The bottom of the mounting column 301 is fixedly connected to the top end of the bottom plate 1. The inner bottom end of the mounting column 301 is fixedly connected to a motor 302. The motor 302 provides the power for lifting. The output end of the motor 302 is fixedly connected to a threaded rod 303. The outer thread of the threaded rod 303 is connected to a moving frame 304. When the threaded rod 303 rotates, it can drive the moving frame 304 to lift. The inner side of the mounting column 301 is fixedly connected to a limiting rod 305. The limiting rod 305 can play a limiting role to prevent the moving frame 304 from rotating with the threaded rod 303. One side of the moving frame 304 The top of the threaded rod 303 is rotatably connected to the inner side of the top of the mounting column 301, and one side of the movable frame 304 is slidably connected to the inner side of the mounting column 301. The outer side of the mounting column 301 is fixedly connected with a display screen 6. If it is necessary to move the elasticity detection mechanism 4 to facilitate the placement of the sofa, the motor 302 is first started. After the output end of the motor 302 rotates, it drives the threaded rod 303 to rotate. After the threaded rod 303 rotates, it drives the movable frame 304 to move up and down, and then can drive the elasticity detection mechanism 4 to move up and down. Under the action of the limit rod 305, the movable frame 304 will not rotate with the threaded rod 303.

[0024] The elasticity detection mechanism 4 includes a hydraulic cylinder 401, the outside of the hydraulic cylinder 401 is fixedly connected to the inside of the mobile frame 304, the output end of the hydraulic cylinder 401 is fixedly connected to a rack column 402, the bottom of the rack column 402 is fixedly connected to a force sensor 403, the force sensor 403 can detect the elasticity of the sofa, the bottom of the force sensor 403 is fixedly connected to a connecting top plate 404, the connecting top plate 404 provides an installation position, both ends of the connecting top plate 404 are slidably connected to the inside of the sliding rod 405, the outside of the sliding rod 405 is provided with a buffer spring 406, a contact plate 407 is fixedly connected between the bottoms of the two sliding rods 405, the sliding rod 405 can be installed with the contact plate 407, and the buffer spring 406 can utilize its own anti- The force makes the contact plate 407 and the sofa to be flexibly connected when in contact, which plays a role in protecting the sofa. The top of the sliding rod 405 is fixedly connected to a limiting round block 408, and the limiting round block 408 can prevent the sliding rod 405 from moving out of the inside of the connecting top plate 404. The outer side of the movable frame 304 is fixedly connected to a mounting bent rod 409, and the mounting bent rod 409 provides a mounting function. The bottom end of the mounting bent rod 409 is rotatably connected to a mounting plate 410, and the mounting plate 410 provides a mounting position. The bottom of the mounting plate 410 is fixedly connected to a slide rail 411, and the slide rail 411 provides a sliding position. The inner side of the mounting plate 410 is rotatably connected to two gears 412, and the two gears 412 are fixedly connected. Therefore, when one of the gears 412 rotates, the other gear 412 rotates. The gear 412 will also rotate, and the interior of the slide rail 411 is slidably connected with a rack sliding column 413. When the rack column 402 moves, it can drive the gear 412 to rotate, so that the other gear 412 can be used to rotate and drive the rack sliding column 413 to move. The rack column 402 is meshed with one of the gears 412, and the top of the rack sliding column 413 is meshed with the other gear 412. A matching groove 414 is provided inside the rack sliding column 413, and the internal sliding connection of the matching groove 414 is connected to a limited sliding plate 415. The matching groove 414 can provide a space for the limited sliding plate 415 to slide, and the limited sliding plate 415 plays a role of limiting. The outer side of the limited sliding plate 415 is fixed A connecting slide column 416 is fixedly connected, a blocking plate 417 is fixedly connected to the outer side of the rack sliding column 413, a force sensor 418 is fixedly connected to the side of the connecting slide column 416 away from the limiting sliding plate 415, and the connecting slide column 416 can be installed with the force sensor 418, a protection spring 419 is fixedly connected between the blocking plate 417 and the force sensor 418, and the protection spring 419 can provide conditions for flexible detection, and a contact pressure plate 420 is fixedly connected to the side of the force sensor 418 away from the limiting sliding plate 415, and a stabilizing frame 421 is fixedly connected to the top of the mobile frame 304, and the stabilizing frame 421 can maintain the stability of the hydraulic cylinder 401, and the top and bottom ends of the stabilizing frame 421 are fixedly connected to the top of the hydraulic cylinder 401.One end of the buffer spring 406 is fixedly connected to the bottom of the connecting top plate 404, and the other end of the buffer spring 406 is fixedly connected to the top of the contact plate 407. The protection spring 419 is sleeved on the outside of the connecting slide column 416. The connecting slide column 416 passes through the side of the rack sliding column 413 close to the contact pressure plate 420. When the sofa is detected, the elastic detection mechanism 4 is first driven to a position close to the sofa by the lifting driving mechanism 3, and the hydraulic cylinder 401 is started. The output end of the hydraulic cylinder 401 moves downward, thereby driving the rack column 402 to move downward, and the rack column 402 can drive the force sensor 1 403, the connecting top plate 404, the sliding rod 405 and the contact plate 407 to move downward. When the contact plate 407 contacts the sofa, the force sensor 1 403 drives the connecting top plate 404 to continue to move downward, thereby giving the contact plate 407 a downward force, and then the reaction force of the buffer spring 406 can be used to make the connecting top plate 404 and the contact plate 407 move downward. There is a buffering force between the touch panels 407, so that the sofa can be flexibly detected and protected. When the force sensor 1 403 moves downward, the rack column 402 will also move downward at the same time, and then it can drive one of the gears 412 to rotate. When one of the gears 412 rotates, it can drive another gear 412 to rotate. After the other gear 412 rotates, it can drive the rack sliding column 413 to move away from the mounting column 301, so that it can drive the limit sliding plate 415, the connecting sliding column 416, the force sensor 2 418, the protection spring 419 and the contact pressure plate 420 to move toward the backrest of the sofa. When the contact pressure plate 420 contacts the sofa backrest, the rack sliding column 413 drives the connecting sliding column 416 to move toward the sofa backrest, and then the protection spring 419 can be compressed, so that when the sofa backrest is detected, the contact pressure plate 420 will not be in hard contact with the sofa backrest, and then the sofa backrest can be protected.

[0025] The rotation positioning mechanism 5 includes an outer cylinder 501, and a movable block 502 is slidably connected inside the outer cylinder 501. The movable block 502 provides a limiting function and can provide an installation space. The bottom of the movable block 502 is fixedly connected to a connecting rod 503, and the connecting rod 503 can be retracted into and extended from the inside of the outer cylinder 501, thereby playing a telescopic role. The bottom of the connecting rod 503 is fixedly connected to the side of the slide rail 411 away from the contact pressure plate 420. The inside of the movable block 502 is provided with a mounting groove 504, and the mounting groove 504 provides an installation space. One side of the inside of the mounting groove 504 is fixedly connected to the outer cylinder 501. The outer wall of the outer cylinder 501 is provided with a plurality of engaging holes 508, and the engaging heads 507 are engaged with the engaging holes 508. After the engaging heads 507 and the engaging holes 508 are engaged, the movable block 502 can be prevented from sliding downward. The side of the limiting disc 506 away from the engaging head 507 is fixedly connected with an ejection spring 505. The inner sliding connection of the mounting groove 504 is connected with a limiting disc 506. The limiting disc 506 provides a limiting function. The ejection spring 505 can drive the limiting disc 506 to reset. The limiting disc 506 is fixedly connected with a clamping head 507 on the side away from the ejection spring 505. The outer wall of the outer cylinder 501 is provided with a plurality of clamping holes 508, and the clamping heads 507 are engaged with the clamping holes 508. After the clamping heads 507 and the clamping holes 508 are engaged, the movable block 502 can be prevented from sliding downward. The fixed connection is on the side of the ejection spring 505 close to the engaging head 507. When adjusting the angle of the slide rail 411, first press the engaging head 507 toward the inside of the movable block 502. When the curved surface on the engaging head 507 moves into the inside of the engaging hole 508, the connecting rod 503 is moved upward, which will drive the slide rail 411 away from the side of the contact pressure plate 420 to rotate upward, and then drive the contact pressure plate 420 to rotate downward. When the connecting rod 503 is moved downward, the contact pressure plate 420 will rotate upward. When the connecting rod 503 is moved, Since the curved surface of the locking head 507 is located inside the locking hole 508, the locking head 507 can be driven to move toward the inside of the movable block 502 under the action of the extrusion force, and then the limiting disc 506 can be driven to move toward the inside of the installation groove 504, so that the limiting disc 506 can be used to compress the ejection spring 505. When the locking head 507 moves to the next locking hole 508, the limiting disc 506 is driven to move outward under the reaction force of the ejection spring 505, so that the locking head 507 can be locked inside the locking hole 508.

[0026] Working principle: When the sofa is tested after production, the sofa is first placed on the top of the top tube 203. At this time, the top tube 203 will be squeezed downward under the action of the sofa's gravity. Since the space between the top tube 203 and the bottom tube 201 is filled with liquid, when the top tube 203 moves downward, it can drive the limit ring 202 to move downward, thereby compressing the reset spring 205, and at the same time, it can also press the liquid into the inside of the base tube 206 through the connecting pipe 210, and then it can drive the limit piston 207 and the inner rod 208 to move outward, and then it can drive the protective soft head 211 to move outward through the inner rod 208, and then it can be against the bottom of the sofa. If one or more of the protective soft heads 211 have touched the inner wall of the sofa, the liquid The liquid will flow into other basic cylinders 206, and the liquid content in the space composed of the bottom cylinder 201 and the top cylinder 203 is greater than the liquid content inside the multiple basic cylinders 206. Therefore, there is no need to worry that the protective soft head 211 cannot be pressed against the inner wall of the sofa due to insufficient liquid content inside the basic cylinder 206. After the protective soft head 211 presses against the inner wall of the sofa, the sofa can be temporarily kept stable. When the elastic detection mechanism 4 is pressed on the sofa, a downward force will be applied to the sofa. At this time, under the action of the sofa gravity and the detection pressure, more liquid in the space composed of the top cylinder 203 and the bottom cylinder 201 flows into the basic cylinder 206, so that the protective soft head 211 can be pressed against the inner wall of the sofa more tightly, so that the sofa will not shake violently, making the detection result more accurate.

[0027] If the elasticity detection mechanism 4 needs to be moved to facilitate the placement of the sofa, the motor 302 is first started, and the output end of the motor 302 rotates to drive the threaded rod 303 to rotate, and the threaded rod 303 rotates to drive the moving frame 304 to move up and down, and then the elasticity detection mechanism 4 can be driven to move up and down, and the moving frame 304 will not rotate with the threaded rod 303 under the action of the limit rod 305; When testing the sofa, first use the lifting drive mechanism 3 to drive the elastic detection mechanism 4 to a position close to the sofa, start the hydraulic cylinder 401, and the output end of the hydraulic cylinder 401 moves downward, thereby driving the rack column 402 to move downward, and the rack column 402 can drive the force sensor 1 403, the connecting top plate 404, the sliding rod 405 and the contact plate 407 to move downward. When the contact plate 407 contacts the sofa, the force sensor 1 403 drives the connecting top plate 404 to continue to move downward, thereby giving the contact plate 407 a downward force, and then the reaction force of the buffer spring 406 can be used to make a buffer force between the connecting top plate 404 and the contact plate 407, so that the sofa can be flexibly detected to protect the sofa. When the force sensor 1 403 moves downward The rack column 402 will also move downward at the same time, and then it can drive one of the gears 412 to rotate. When one of the gears 412 rotates, it can drive the other gear 412 to rotate. After the other gear 412 rotates, it can drive the rack sliding column 413 to move away from the mounting column 301, thereby driving the limit sliding plate 415, the connecting sliding column 416, the force sensor 418, the protection spring 419 and the contact pressure plate 420 to move toward the sofa backrest. When the contact pressure plate 420 contacts the sofa backrest, the rack sliding column 413 drives the connecting sliding column 416 to move toward the sofa backrest, and then the protection spring 419 can be compressed, so that when the sofa backrest is detected, the contact pressure plate 420 will not be in hard contact with the sofa backrest, thereby protecting the sofa backrest; When adjusting the angle of the slide rail 411, first press the engaging head 507 toward the inside of the movable block 502. When the curved surface on the engaging head 507 moves into the inside of the engaging hole 508, the connecting rod 503 is moved upward, which drives the contact pressure plate 420 to move downward. When the connecting rod 503 is moved downward, the contact pressure plate 420 rotates upward. When the connecting rod 503 moves, the curved surface of the engaging head 507 is located inside the engaging hole 508. Under the action of the extrusion force, the locking head 507 can be driven to move toward the inside of the movable block 502, and then the limiting disc 506 can be driven to move toward the inside of the installation groove 504, so that the limiting disc 506 can be used to compress the ejection spring 505. When the locking head 507 moves to the next locking hole 508, the limiting disc 506 is driven to move outward under the reaction force of the ejection spring 505, so that the locking head 507 can be locked in the inside of the locking hole 508.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A sofa production elasticity testing device, comprising a bottom plate (1), characterized in that: A sofa stabilizing mechanism (2) is fixedly connected to the middle of the top of the bottom plate (1), and the sofa stabilizing mechanism (2) is used to stabilize the sofa placed thereon; a lifting and driving mechanism (3) is fixedly connected to one side of the top of the bottom plate (1); an elasticity detection mechanism (4) is arranged outside the lifting and driving mechanism (3); the lifting and driving mechanism (3) can drive the elasticity detection mechanism (4) to rise and fall; the elasticity detection mechanism (4) is used to detect the elasticity of the sofa; a rotation positioning mechanism (5) is arranged outside the elasticity detection mechanism (4); the rotation positioning mechanism (5) is used to fix the angle of the elasticity detection mechanism (4) after rotation.

2. The sofa production elasticity testing equipment according to claim 1, characterized in that: The sofa stabilizing mechanism (2) comprises a bottom cylinder (201), the bottom of the bottom cylinder (201) is fixedly connected to the middle of the top of the bottom plate (1), the interior of the bottom cylinder (201) is slidably connected to a limiting ring (202), the top of the limiting ring (202) is fixedly connected to a top cylinder (203), the bottom end of the interior of the bottom cylinder (201) is fixedly connected to a mounting seat (204), the top of the mounting seat (204) is fixedly connected to a return spring (205), and the exterior of the bottom cylinder (201) is fixedly connected to a plurality of A base cylinder (206), the interior of the base cylinder (206) being slidably connected to a limit piston (207), the limit piston (207) being fixedly connected to an inner rod (208) on a side away from the base cylinder (201), a tension spring (209) being fixedly connected between the interior of the inner rod (208) and the interior of the base cylinder (206), the bottom of the base cylinder (206) being fixedly connected to a connecting pipe (210), the bottoms of a plurality of connecting pipes (210) being fixedly connected to the outer bottom end of the base cylinder (201).

3. The sofa production elasticity testing equipment according to claim 1, characterized in that: The lifting and driving mechanism (3) comprises a mounting column (301), the bottom of the mounting column (301) is fixedly connected to the top end of the bottom plate (1), the bottom end of the mounting column (301) is fixedly connected to a motor (302), the output end of the motor (302) is fixedly connected to a threaded rod (303), the outer thread of the threaded rod (303) is threadedly connected to a moving frame (304), the inner side of the mounting column (301) is fixedly connected to a limiting rod (305), one side of the moving frame (304) is slidably connected to the outside of the limiting rod (305), and the top of the threaded rod (303) is rotatably connected to the inner side of the top end of the mounting column (301).

4. The sofa production elasticity testing device according to claim 3 is characterized in that: The elasticity detection mechanism (4) comprises a hydraulic cylinder (401), the outside of the hydraulic cylinder (401) is fixedly connected to the inside of the mobile frame (304), the output end of the hydraulic cylinder (401) is fixedly connected to a rack column (402), the bottom of the rack column (402) is fixedly connected to a force sensor 1 (403), the bottom of the force sensor 1 (403) is fixedly connected to a connecting top plate (404), both ends of the connecting top plate (404) are slidably connected to sliding rods (405), and the sliding rods (405) are fixedly connected to the inside of the connecting top plate (404). The outer sleeve of the moving rod (405) is provided with a buffer spring (406); a contact plate (407) is fixedly connected between the bottoms of the two sliding rods (405); the top of the sliding rod (405) is fixedly connected to a limited position circular block (408); the outer side of the moving frame (304) is fixedly connected to a mounting bent rod (409); the bottom end of the mounting bent rod (409) is rotatably connected to a mounting plate (410); the bottom of the mounting plate (410) is fixedly connected to a slide rail (411); the inner side of the mounting plate (410) is fixedly connected to a mounting plate (410); There are two gears (412) rotatably connected, the interior of the slide rail (411) is slidably connected to a rack sliding column (413), the rack column (402) is meshed with one of the gears (412), the top of the rack sliding column (413) is meshed with another gear (412), a fitting groove (414) is provided inside the rack sliding column (413), the fitting groove (414) is slidably connected to a limited sliding plate (415), and the limited sliding plate (415) is meshed with the top of the rack sliding column (413). 15) is fixedly connected to the outer side of the rack sliding column (413), a blocking plate (417) is fixedly connected to the outer side of the rack sliding column (413), a force sensor 2 (418) is fixedly connected to the side of the connecting sliding column (416) away from the limiting sliding plate (415), a protection spring (419) is fixedly connected between the blocking plate (417) and the force sensor 2 (418), and a contact pressure plate (420) is fixedly connected to the side of the force sensor 2 (418) away from the limiting sliding plate (415).

5. The sofa production elasticity testing device according to claim 4, characterized in that: The rotation positioning mechanism (5) comprises an outer cylinder (501), a movable block (502) is slidably connected inside the outer cylinder (501), a connecting rod (503) is fixedly connected to the bottom of the movable block (502), the bottom of the connecting rod (503) is fixedly connected to a side of the slide rail (411) away from the contact pressure plate (420), a mounting groove (504) is provided inside the movable block (502), and an ejection spring (505) is fixedly connected to one side of the inside of the mounting groove (504). The mounting groove (504) is internally slidably connected to a limiting disc (506); a side of the limiting disc (506) away from the ejection spring (505) is fixedly connected to a snap-fit ​​head (507); an outer wall of the outer cylinder (501) is provided with a plurality of snap-fit ​​holes (508); the snap-fit ​​head (507) is snap-fitted with the snap-fit ​​holes (508); and a side of the limiting disc (506) away from the snap-fit ​​head (507) is fixedly connected to a side of the ejection spring (505) close to the snap-fit ​​head (507).

6. The sofa production elasticity testing equipment according to claim 2, characterized in that: A protective soft head (211) is fixedly connected to a side of the inner rod (208) away from the bottom tube (201), and a top of the return spring (205) is fixedly connected to an inner top end of the top tube (203).

7. The sofa production elasticity testing device according to claim 3, characterized in that: One side of the mobile frame (304) is slidably connected to the inner side of the mounting column (301), and the outer side of the mounting column (301) is fixedly connected to a display screen (6).

8. The sofa production elasticity testing device according to claim 4, characterized in that: The top of the moving frame (304) is fixedly connected to a stabilizing frame (421), and the top and bottom ends of the stabilizing frame (421) are fixedly connected to the top of the hydraulic cylinder (401).

9. The sofa production elasticity testing device according to claim 4, characterized in that: One end of the buffer spring (406) is fixedly connected to the bottom of the connecting top plate (404), and the other end of the buffer spring (406) is fixedly connected to the top of the contact plate (407).

10. The sofa production elasticity testing device according to claim 4, characterized in that: The protection spring (419) is sleeved on the outside of the connecting sliding column (416), and the connecting sliding column (416) passes through a side of the rack sliding column (413) close to the contact pressure plate (420).

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