Mattress durability testing device

Abstract

The utility model belongs to the technical field of mattress performance testing, and particularly relates to a mattress durability testing device, a connecting mechanism is arranged at the upper part of a rack, and a driving mechanism is meshed and connected with the connecting mechanism through a belt. Two parallel vertical plates are further arranged on the upper portion of the rack, a guide roller module is arranged between the two vertical plates, the guide roller set comprises an upper guide roller set and a lower guide roller set, and the connecting mechanism is connected with the lower guide roller set to drive the lower guide roller set to rotate. The upper guide roller set and the lower guide roller set are each composed of a plurality of guide rollers including the upper guide rollers and the lower guide rollers, and the upper guide roller set and the lower guide roller set are arranged in an inserted mode. A hollow groove with an opening in the upper end is formed in the vertical plate, and the upper guide roller set is in threaded connection with an adjusting assembly, so that the whole upper guide roller slides along the edge of the hollow groove. Rotation of the lower guide roller set simulates a dynamic load of rolling compression of a human body, vertical pressure and a sliding track of the upper guide roller set reproduce static pressure distribution, and the vertical pressure and the sliding track are matched to enable the mattress to move repeatedly so as to test deformation durability of the mattress.

Description

Technical Field

[0001] This utility model belongs to the field of mattress performance testing technology, and in particular relates to a mattress durability testing device. Background Technology

[0002] A mattress is an item placed between the human body and a bed to ensure consumers get healthy and comfortable sleep. Mattresses are made of a variety of materials, and mattresses made of different materials can provide different sleep experiences. However, mattresses are not fast-moving consumer goods. After prolonged use, whether a mattress can return to its initial elasticity and whether its thickness remains consistent with its initial state becomes an important indicator of its quality. In the mattress manufacturing process, it is often necessary to sample and test the pressure resistance of mattresses to ensure the quality of the produced mattresses.

[0003] Existing durability testing devices generally suffer from inaccurate simulation of human body pressure distribution and a single dynamic load application method. Traditional equipment usually uses fixed pressure components or unidirectional movement mechanisms, which makes it difficult to truly reproduce the complex stress state that a mattress has been subjected to for a long time. Furthermore, the position and frequency of force application cannot be flexibly adjusted during the test, resulting in deviations between the test data and actual usage conditions. Utility Model Content

[0004] The purpose of this invention is to provide a mattress durability testing device, which aims to solve the technical problem of single force application in existing mattress testing devices.

[0005] To achieve the above objectives, this utility model provides a mattress durability testing device, including a frame, a drive mechanism, a connecting mechanism, and a guide roller module. The drive mechanism is internally connected to the frame, and the connecting mechanism is located on the upper part of the frame. The drive mechanism is connected to the connecting mechanism via a belt. Two parallel vertical plates are also provided on the upper part of the frame, and a guide roller module is located between the two vertical plates. The guide roller module includes an upper guide roller group that can slide up and down, and a lower guide roller group that is synchronously connected to the connecting mechanism. The connecting mechanism is connected to the lower guide roller group to drive the lower guide roller group to rotate. Both the upper and lower guide roller groups consist of several parallel guide rollers, divided into upper and lower guide rollers, arranged with the upper and lower guide rollers interleaved. The vertical plates have slots with openings at the top. The upper guide roller group is threadedly connected to an adjusting component, allowing the entire upper guide roller to slide along the edge of the slot.

[0006] Furthermore, the drive mechanism includes a drive motor, a drive rod, a meshing disc, and a control spring. The drive motor is connected inside the frame, and its drive end is connected to the drive rod. The frame also has two vertically arranged limiting support plates. The meshing disc is located within the two limiting support plates, and the drive rod extends into the limiting support plates and is fixedly connected to the meshing disc. The control spring is sleeved on the drive rod and is positioned between the meshing disc and either limiting support plate.

[0007] Furthermore, the upper part of the two limiting support plates is connected to a threaded strip, and the first rotating handle is set at one end of the threaded strip. By rotating the threaded strip, the two limiting support plates are driven to move closer or further apart.

[0008] Furthermore, the connecting mechanism includes a connecting body, a left connecting part, and a right connecting part. The connecting body is mounted on the frame, and the two ends of the connecting body are respectively provided with a left connecting part and a right connecting part, which rotate synchronously. The left connecting part is synchronously connected to the actuator end of the drive rod via a belt, and the right connecting part is synchronously connected to either lower guide roller.

[0009] Furthermore, the two lower guide rollers are connected by a chain meshing mechanism.

[0010] Furthermore, a reinforcing roller is provided between the two vertical plates, and the reinforcing roller is installed around the perimeter between the two vertical plates.

[0011] Furthermore, the upper guide roller has fitting grooves on both sides of its end, and the edge of the empty slot is set in the fitting groove, so that the end of the upper guide roller slides on the edge of the empty slot.

[0012] Furthermore, the adjustment assembly is connected to one of the upper guide rollers and includes a stop frame body disposed on the empty slot and a second rotating handle connected to the stop frame body. The end of the second rotating handle is connected to the end of the upper guide roller, and the second rotating handle is threadedly connected to the stop frame body to drive the upper guide roller to slide up and down.

[0013] Furthermore, adjustment components are provided at both the front and rear ends of one of the upper guide rollers.

[0014] Furthermore, each upper guide roller has corresponding vertical plates extending from both its front and rear ends, and fixed columns are provided at the left and right ends of adjacent upper guide rollers. The fixed columns are fixedly connected to the upper guide rollers, and the fixed columns slide in the sliding groove on the frame. The sliding columns are connected by an integral transmission bar, so that the upper guide roller group can slide up and down uniformly.

[0015] The mattress durability testing device provided in this embodiment of the present invention has at least one of the following technical effects:

[0016] In this design, the mattress to be tested is first placed horizontally in the upper part of the frame, positioned within the gap between the upper and lower guide roller groups. The drive mechanism is activated, and the belt drive drives the connecting mechanism to rotate, thereby driving all the lower guide rollers of the lower guide roller group to rotate synchronously, causing the surface of the lower guide rollers to generate rolling friction with the bottom surface of the mattress. According to the mattress thickness and test parameter requirements, the screw transmission mechanism of the rotating adjustment component is used to make the entire upper guide roller group slide vertically along the edge of the slot on the vertical plate until the upper guide roller group forms a preset pressure contact with the top surface of the mattress. During the synchronous or alternating movement of the upper and lower guide roller groups, the rotation of the lower guide roller group simulates the dynamic load of the human body rolling under pressure, while the vertical pressure and sliding trajectory of the upper guide roller group reproduce the static pressure distribution. The combination of the two causes the mattress to move repeatedly to test the mattress's deformation durability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 Schematic diagram of the overall structure of the mattress durability testing device provided in this embodiment of the utility model Figure 1 ;

[0019] Figure 2 A schematic diagram of the overall structure of the hidden part of the frame of the mattress durability testing device provided in this embodiment of the utility model. Figure 2 ;

[0020] Figure 3 A cross-sectional view of the mattress durability testing device provided in an embodiment of this utility model;

[0021] The following are the labeling elements in the figure:

[0022] 100. Frame; 110. Vertical plate; 120. Empty slot; 130. Reinforcing roller; 140. Fitting groove; 150. Control panel;

[0023] 200. Drive mechanism; 210. Drive motor; 220. Drive rod; 230. Engaging disc; 240. Control spring; 250. Limiting support plate; 260. Threaded strip; 270. First rotating handle;

[0024] 300. Connecting mechanism; 310. Connecting body; 320. Left connecting part; 330. Right connecting part;

[0025] 400. Guide roller module; 410. Upper guide roller assembly; 411. Upper guide roller; 420. Lower guide roller assembly; 421. Lower guide roller;

[0026] 500. Adjustment component; 510. Support frame; 520. Second rotating handle; 530. Sliding column; 540. Sliding groove; 550. Transmission bar. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings 1-3, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figure 1-3 The described embodiments are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0031] In one embodiment of this utility model, a mattress durability testing device is provided, including a frame 100, a drive mechanism 200, a connecting mechanism 300, and a guide roller module 400. The drive mechanism 200 is internally connected to the frame 100, and the connecting mechanism 300 is provided on the upper part of the frame 100. The drive mechanism 200 is engaged with the connecting mechanism 300 via a belt. Two parallel vertical plates 110 are also provided on the upper part of the frame 100, and a guide roller module 400 is provided between the two vertical plates 110. The guide roller module 400 includes an upper guide roller group 410 that can slide up and down, and a lower guide roller group 420 that is synchronously connected to the connecting mechanism 300. The connecting mechanism 300 is connected to the lower guide roller group 420 to drive the lower guide roller group 420 to rotate. Both the upper guide roller group 410 and the lower guide roller group 420 are composed of several parallel guide rollers, divided into upper guide rollers 411 and lower guide rollers 412, with the upper and lower groups of guide rollers interleaved. The vertical plate 110 is provided with an empty groove 120 with an opening at the top. The upper guide roller group 410 is threadedly connected to an adjustment component 500, so that the upper guide roller 411 slides along the edge of the empty groove 120.

[0032] Specifically, the mattress to be tested is first placed horizontally in the upper area of ​​the frame 100, positioned within the gap between the upper and lower guide roller groups 420. The drive mechanism 200 is activated, driving the connecting mechanism 300 via belt transmission, which in turn drives all the lower guide rollers 412 of the lower guide roller group 420 to rotate synchronously, causing the surface of the lower guide rollers 412 to generate rolling friction with the bottom surface of the mattress. According to the mattress thickness and test parameter requirements, the threaded transmission mechanism of the rotating adjustment component 500 is used to make the entire upper guide roller group 410 slide vertically along the edge of the slot 120 on the vertical plate 110 until the upper guide roller group 410 forms a preset pressure contact with the top surface of the mattress. During the synchronous or alternating movement of the upper and lower guide roller groups 420, the rotation of the lower guide roller group 420 simulates the dynamic load of the human body rolling under pressure, while the vertical pressure and sliding trajectory of the upper guide roller group 410 reproduce the static pressure distribution. The combination of the two causes the mattress to move repeatedly to test the mattress's deformation durability.

[0033] Furthermore, the drive mechanism 200 includes a drive motor 210, a drive rod 220, a meshing disc 230, and a control spring 240. The drive motor 210 is connected inside the frame 100, and its drive end is connected to the drive rod 220. The frame 100 also has two vertically arranged limiting support plates 250. The meshing disc 230 is disposed within the two limiting support plates 250. The drive rod 220 extends into the limiting support plates 250 and is fixedly connected to the meshing disc 230. The control spring 240 is sleeved on the drive rod 220 and is disposed between the meshing disc 230 and either of the limiting support plates 250. Specifically, after the drive motor 210 starts, the drive rod 220 drives the meshing disc 230 to rotate between the limiting support plates 250. The control spring 240 is sleeved on the drive rod 220, with one end abutting against the meshing disc 230 and the other end abutting against the limiting support plate 250. The compression and rebound of the spring buffers the vibration of the drive rod 220, thus extending the service life of the component.

[0034] Furthermore, a threaded bar 260 is connected to the upper part of the two limiting support plates 250, and a first rotating handle 270 is disposed at one end of the threaded bar 260. By rotating the threaded bar 260, the two limiting support plates 250 are driven to move closer or further apart. The two limiting support plates 250 move synchronously towards or away from each other along the lead of the threaded bar 260, thereby adjusting the meshing distance between the meshing disc 230 and the drive rod 220.

[0035] Furthermore, the connecting mechanism 300 includes a connecting body 310, a left connecting part 320, and a right connecting part 330. The connecting body 310 is mounted on the frame 100. The two ends of the connecting body 310 are respectively provided with a left connecting part 320 and a right connecting part 330, which rotate synchronously. The left connecting part 320 is synchronously connected to the actuator end of the drive rod 220 via a belt. The right connecting part 330 is synchronously connected to any one of the lower guide rollers 412. Specifically, the right connecting part 330 is connected to any one of the lower guide rollers 412 via gear meshing. The synchronous design of the left and right connecting parts 330 ensures the consistency of power transmission in the lower guide roller group 420, avoiding asynchronous movement of multiple guide rollers due to transmission delay.

[0036] Furthermore, the two lower guide rollers 412 are connected by a chain meshing.

[0037] Furthermore, a reinforcing roller 130 is provided between the two vertical plates 110, and the reinforcing roller 130 is installed around the perimeter between the two vertical plates 110. The reinforcing roller 130 improves the bending strength of the vertical plates 110, prevents the guide roller module 400 from deforming under long-term load, and ensures the insertion accuracy of the upper and lower guide roller groups 420.

[0038] Furthermore, the upper guide roller 411 has fitting grooves 140 on both sides of its end, and the edge of the empty groove 120 is set in the fitting groove 140, so that the end of the upper guide roller 411 slides on the edge of the empty groove 120. One of the upper guide rollers 411 has adjusting components 500 at both its front and rear ends. The adjusting component 500 is connected to one of the upper guide rollers 411 and includes a stop frame 510 set on the empty groove 120 and a second rotating handle 520 connected to the stop frame 510. The end of the second rotating handle 520 is connected to the end of the upper guide roller 411, and the second rotating handle 520 is threadedly connected to the stop frame 510 to drive the upper guide roller 411 to slide up and down. Specifically, the threaded adjustment enables precise fine-tuning of the height of the upper guide roller 411, which can quickly adapt to mattresses of different thicknesses and reach a preset height, and the self-locking characteristic of the thread ensures the stability of the position after adjustment.

[0039] Furthermore, each upper guide roller 411 has corresponding vertical plates 110 extending from both its front and rear ends. Each adjacent upper guide roller 411 has a fixed post 530 at both ends, which is fixedly connected to the upper guide roller 411. The fixed post 530 slides in the sliding groove 540 on the frame 100. A single integrated transmission bar 550 connects the sliding post 530, enabling the upper guide roller group 410 to slide up and down uniformly. The integrated transmission bar ensures synchronous operation of multiple guide rollers, avoiding the inefficiency of manual adjustment of each roller individually, and reducing testing errors caused by height differences among the multiple guide rollers.

[0040] Furthermore, the rack 100 is also equipped with a control panel 150 for main control.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mattress durability testing device, characterized in that, The device includes a frame, a drive mechanism, a connecting mechanism, and a guide roller module. The drive mechanism is internally connected to the frame, and the connecting mechanism is located on the upper part of the frame. The drive mechanism is meshed with the connecting mechanism via a belt. Two parallel vertical plates are also provided on the upper part of the frame, and the guide roller module is located between the two vertical plates. The guide roller module includes an upper guide roller group that can slide up and down, and a lower guide roller group that is synchronously connected to the connecting mechanism. The connecting mechanism is connected to the lower guide roller group to drive the lower guide roller group to rotate. Both the upper and lower guide roller groups consist of several parallel guide rollers, divided into upper and lower guide rollers, arranged with the upper and lower groups interleaved. The vertical plates have slots with openings at the top. The upper guide roller group is threadedly connected to an adjusting component, allowing the entire upper guide roller group to slide along the edge of the slot.

2. The mattress durability testing device according to claim 1, characterized in that, The driving mechanism includes a drive motor, a drive rod, a meshing disc, and a control spring. The drive motor is connected inside the frame, and its driving end is connected to the drive rod. The frame also has two vertically arranged limiting support plates. The meshing disc is disposed inside the two limiting support plates. The drive rod extends into the limiting support plates and is fixedly connected to the meshing disc. The control spring is sleeved on the drive rod and is disposed between the part of the meshing disc and either of the limiting support plates.

3. The mattress durability testing device according to claim 2, characterized in that, The upper part of the two limiting support plates is connected to a threaded strip, and a first rotating handle is set at one end of the threaded strip. By rotating the threaded strip, the two limiting support plates are driven to move closer or further apart.

4. The mattress durability testing device according to claim 2, characterized in that, The connecting mechanism includes a connecting body, a left connecting part, and a right connecting part. The connecting body is mounted on the frame. The left connecting part and the right connecting part are respectively located at both ends of the connecting body. The two connecting parts rotate synchronously. The left connecting part is synchronously connected to the actuating end of the drive rod via a belt. The right connecting part is synchronously connected to any of the lower guide rollers.

5. The mattress durability testing device according to claim 4, characterized in that, The two lower guide rollers are connected by a chain meshing.

6. The mattress durability testing device according to claim 1, characterized in that, A reinforcing roller is provided between the two vertical plates, and the reinforcing roller is installed around the perimeter between the two vertical plates.

7. The mattress durability testing device according to claim 1, characterized in that, The upper guide roller has fitting grooves on both sides at its end, and the edge of the empty groove is set in the fitting groove, so that the end of the upper guide roller slides on the edge of the empty groove.

8. The mattress durability testing device according to claim 1, characterized in that, The adjustment assembly is connected to one of the upper guide rollers and includes a stop frame disposed on the empty slot and a second rotating handle connected to the stop frame. The end of the second rotating handle is connected to the end of the upper guide roller, and the second rotating handle is threadedly connected to the stop frame to drive the upper guide roller to slide up and down.

9. The mattress durability testing device according to claim 8, characterized in that, The adjustment components are provided at both the front and rear ends of one of the upper guide rollers.

10. The mattress durability testing device according to claim 9, characterized in that, Each of the upper guide rollers has a corresponding vertical plate extending from both its front and rear ends. The left and right ends of adjacent upper guide rollers are provided with fixed columns. The fixed columns are fixedly connected to the upper guide rollers, and the fixed columns slide in the sliding groove on the frame. The sliding columns are connected by an integral transmission bar, so that the upper guide roller group can slide up and down uniformly.

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