Mattress testing machine
By introducing a self-adjustment device and a rolling device into the mattress test machine, the problem of the roller close to the pad is solved by using the coordination of the pivot frame and the guide, and the reliability and accuracy of the durability test are ensured.
Patent Information
- Application Number
- CN202211741898.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-29
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2042-12-29
AI Technical Summary
In existing mattress durability testers, the roller cannot effectively fit the mattress surface, resulting in inaccurate test results.
A mattress testing machine is designed, including a self-adjustment device and a rolling device. Through the cooperation of the pivot frame and guides, the roller is automatically adjusted during the lifting and transverse movement, ensuring a close fit with the pad.
The roller and the mattress surface are achieved to improve the reliability and accuracy of durability testing.
Smart Images
Figure CN115962968B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of mattress testing applications, and particularly to a mattress testing machine for testing a mattress, such as the durability of the mattress surface, the softness and hardness of the mattress surface, and the durability of the mattress edge, etc. Background Art
[0002] As is well known, a mattress is an essential household item in people's lives. In order to ensure that the mattress meets the designed standard requirements before being put on the market, it is necessary to use equipment to test the mattress.
[0003] For example, in a comprehensive mattress durability tester disclosed in Chinese Patent Application No. 2015203536716, its rolling component includes a roller bracket, a roller provided on the roller bracket, and a roller motor for lifting the roller bracket together with the roller. Therefore, when performing a rolling test on the surface of the mattress, the roller motor drives the roller bracket to drive the roller to be in close contact with the mattress, and with the cooperation of the moving device in the comprehensive mattress durability tester, the roller makes a rolling movement on the surface of the mattress to achieve the purpose of testing the rolling of the mattress surface.
[0004] However, in the above-mentioned comprehensive mattress durability tester, both ends of the roller can only make synchronous lifting movements. Considering that the surface of the mattress is uneven due to sewing lines, and the deformation amount in the middle of the mattress surface is large while the deformation amount at the edge is small, this causes the roller to not be able to closely adhere to the surface of the mattress, thus affecting the test result of the mattress durability.
[0005] Therefore, there is an urgent need for a mattress testing machine that can keep the roller in close contact with the mattress surface during the durability test of the mattress surface to overcome the above-mentioned defects. Summary of the Invention
[0006] The purpose of the present invention is to provide a mattress testing machine that can keep the roller in close contact with the mattress surface during the durability test of the mattress surface.
[0007] To achieve the above object, the mattress testing machine of the present invention includes a frame, a rolling device, a transverse moving seat, a transverse moving driving device and a self-adjusting device. The frame includes a foot frame and a suspension cross beam fixedly connected to the foot frame, and the transverse moving seat is movably mounted on the suspension cross beam; the rolling device includes a lifting driver, a lifting bracket and a roller, the lifting bracket is slidably connected to the transverse moving seat along the up and down direction of the frame, the lifting driver is assembled between the transverse moving seat and the lifting bracket, the transverse moving driving device is mounted on the frame and drives the transverse moving seat together with the rolling device to move transversely on the suspension cross beam; the self-adjusting device includes a first up and down guide member, a second up and down guide member, a first matching guide member, a second matching guide member and a pivot swing frame located directly below the lifting bracket, the relatively first end and second end of the pivot swing frame are each rotatably connected to the roller, and the position of the pivot swing frame between the first end and the second end is pivotally connected to the lifting bracket to define a first pivot line; one of the first end of the pivot swing frame and the lifting bracket is pivotally connected to one end of the first up and down guide member to define a second pivot line, and the other of the first end of the pivot swing frame and the lifting bracket is pivotally connected to the first matching guide member to define a third pivot line, the relatively other end of the first up and down guide member is slidably connected to the first matching guide member, one of the second end of the pivot swing frame and the lifting bracket is pivotally connected to one end of the second up and down guide member to define a fourth pivot line, and the other of the second end of the pivot swing frame and the lifting bracket is pivotally connected to the second matching guide member to define a fifth pivot line, the relatively other end of the second up and down guide member is slidably connected to the second matching guide member, and the first pivot line to the fifth pivot line are parallel.
[0008] Preferably, the pivot swing frame includes a cross frame, a first side frame located at one end of the cross frame and a second side frame located at the relatively other end of the cross frame, the cross frame is pivotally connected to the lifting bracket, the first side frame and the second side frame protrude downward from the cross frame, the first side frame forms the first end of the pivot swing frame, the second side frame forms the second end of the pivot swing frame, the roller is located in the space surrounded by the cross frame, the first side frame and the second side frame, and the roller is also located directly below the cross frame.
[0009] Preferably, the first up and down guide member is located beside the first side frame, the lower end of the first up and down guide member is pivotally connected to the first side frame, the first matching guide member is a first guide sleeve located on the lifting bracket, and the upper end of the first up and down guide member slides upward through the first guide sleeve, the second up and down guide member is located beside the second side frame, the lower end of the second up and down guide member is pivotally connected to the second side frame, the second matching guide member is a second guide sleeve located on the lifting bracket, and the upper end of the second up and down guide member slides upward through the second guide sleeve.
[0010] Preferably, the lower side contour of the lifting bracket facing the horizontal bracket is a tapered contour that is lower in the middle and higher at both sides, and the first pivot line is located directly above the middle of this tapered contour.
[0011] Preferably, the self-adjusting device further includes a bearing seat and a pivot swing shaft rotatably disposed in the bearing seat. The axis line of the pivot swing shaft forms the first pivot line. One of the pivot swing shaft and the bearing seat is fixedly connected to the lifting bracket, and the other of the pivot swing shaft and the bearing seat is fixedly connected to the horizontal bracket. The pivot swing shaft is located directly above the middle of the tapered contour.
[0012] Preferably, the lifting bracket includes a top plate located directly above the suspension cross beam, a bottom plate located directly below the suspension cross beam, and an intermediate rod connected between the top plate and the bottom plate. The intermediate rod is slidably disposed in the transverse movement seat in the up and down direction of the machine frame. The output end of the lifting drive is arranged in the up and down direction of the machine frame, and the output end of the lifting drive is assembled and connected to the top plate or the bottom plate.
[0013] Preferably, the transverse movement seat straddles the suspension cross beam and is provided with a first up and down guide sleeve and a second up and down guide sleeve. The first up and down guide sleeve is arranged opposite to the second up and down guide sleeve along the direction in which the transverse movement seat straddles the suspension cross beam, so that the suspension cross beam is located between the first up and down guide sleeve and the second up and down guide sleeve. The intermediate rod is respectively slidably disposed in the first up and down guide sleeve and the second up and down guide sleeve.
[0014] Preferably, the mattress testing machine of the present invention further includes an edge testing device that can move in the up and down direction of the machine frame. The edge testing device is installed on the transverse movement seat and is arranged at intervals from the rolling device along the transverse movement direction of the transverse movement seat.
[0015] Preferably, the mattress testing machine of the present invention further includes a height measuring device and a softness and hardness testing device that can each move in the up and down direction of the machine frame and are installed on the transverse movement seat. The edge testing device, the height measuring device, the rolling device, and the softness and hardness testing device are arranged in sequence along the transverse movement direction of the transverse movement seat.
[0016] Preferably, the machine frame further includes a mattress placement table located directly below the suspension cross beam. The feet are two and form a gantry with the suspension cross beam. Each foot is fixedly connected to the mattress placement table.
[0017] Compared with the prior art, by means of the cooperation of the first up-and-down guide, the second up-and-down guide, the first matching guide, the second matching guide and the pivoting frame located directly below the lifting bracket, during the process that the lifting drive drives the lifting bracket together with the self-adjusting device and the roller to press down the surface of the mattress, the two ends of the roller can automatically pivot and adjust around the first pivot line during the contact between the roller and the mattress surface, so that the roller can better keep close contact with the mattress surface; at the same time, during the process that the transverse movement drive device drives the roller to perform transverse rolling pressure on the mattress surface through the transverse movement seat, the roller also automatically pivots and adjusts around the first pivot line, so that the roller keeps close contact with the mattress surface during the durability test of the mattress surface, ensuring the reliability of the durability test of the mattress surface. Description of the Drawings
[0018] Figure 1 is a plan view of the mattress testing machine of the present invention.
[0019] Figure 2 is Figure 1 a plan view of the mattress testing machine shown as viewed in the direction of the arrow in the lower left corner.
[0020] Figure 3 is along Figure 1 a plan view of the rolling device and the self-adjusting device assembled together as viewed in the direction opposite to the arrow in the lower left corner in
[0021] Figure 4 is Figure 3 a plan view as viewed in the direction of the arrow in the lower left corner.
[0022] Figure 5 is a view showing Figure 3 the state after the right end of the roller slides upward and the left end slides downward.
[0023] Figure 6 is a view showing Figure 3 the state after the right end of the roller slides downward and the left end slides upward. Detailed Embodiment
[0024] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings given in the specification.
[0025] Please refer to Figures 1 to 3 , the mattress testing machine 100 of the present invention is used to test a mattress 200, and includes a frame 10, a rolling device 20, a transverse movement seat 30, a transverse movement drive device 40 and a self-adjusting device 50. The frame 10 includes feet 11, a suspension cross beam 12 fixedly connected to the feet 11 and a mattress placement table 13 located directly below the suspension cross beam 12. There are two feet 11 which form a gantry with the suspension cross beam 12, and each foot 11 is fixedly connected to the mattress placement table 13, so as to, by means of the two feet 11, from both sides (such as but not limited to Figure 1support the suspension crossbeam 12 on the left and right sides as shown, thereby improving the stability of the suspension crossbeam 12 suspended directly above the mattress placement table 13. Optionally, in Figure 1 as an example, the footrest 11 is fixedly installed on the side of the mattress placement table 13 so that the mattress placement table 13 is located between the two footrests 11. Of course, according to actual needs, the fixing position of the footrest 11 and the mattress placement table 13 can also be other, so it is not limited to Figure 1 as shown; and it can be understood that according to actual needs, the mattress placement table 13 can be deleted, that is, the frame 10 does not include the mattress placement table 13. At this time, the ground directly below the suspension crossbeam 12 serves as the placement position of the mattress 200.
[0026] Meanwhile, in Figure 1 and Figure 2 the transverse movement seat 30 is movably installed on the suspension crossbeam 12. Preferably, the transverse movement seat 30 slides on the suspension crossbeam 12 so that the transverse movement seat 30 slides on the suspension crossbeam 12 in a sliding manner. Of course, according to actual needs, the transverse movement seat 30 can also be installed on the suspension crossbeam 12 by other movable means, so it is not limited to Figure 1 as shown. The rolling device 20 includes a lifting driver 21, a lifting bracket 22 and a roller 23; the lifting bracket 21 is slidably connected to the transverse movement seat 30 in the up and down direction of the frame 10 to meet the need for the lifting bracket 22 to move up and down relative to the transverse movement seat 30. The lifting driver 21 is assembled between the transverse movement seat 30 and the lifting bracket 22, and the lifting bracket 22 is driven by the lifting driver 21 to move up and down relative to the transverse movement seat 30. The transverse movement driving device 40 is installed on the suspension crossbeam 12. Of course, according to actual needs, the transverse movement driving device 40 can also be installed on the footrest 11, so it is not limited to this; and the transverse movement driving device 40 also drives the transverse movement seat 30 together with the rolling device 20 to move transversely on the suspension crossbeam 12 to meet the need for the roller 23 to roll on the surface of the mattress 200.
[0027] Furthermore, in Figure 3Among them, the self-adjusting device 50 includes a first upper and lower guide 51, a second upper and lower guide 52, a pivot frame 53, a first guide sleeve 54 and a second guide sleeve 55. The pivot frame 53 is located directly below the lifting bracket 22. The opposite first end 531 and second end 532 of the pivot frame 53 are each rotatably connected to the roller 23, and the roller 23 is supported by the first end 531 and the second end 532 of the pivot frame 53, thereby ensuring the reliability of the roller 23 rolling on the mattress 200; the position of the pivot frame 53 between the first end 531 and the second end 532 is pivotally connected to the lifting bracket 22 to define a first pivot line C1; the first end 531 of the pivot frame 53 is pivotally connected to the lower end of the first upper and lower guide 51 to define a second pivot line C2, the first guide sleeve 54 is pivotally connected to the lifting bracket 22 to define a third pivot line C3, and the upper end of the first upper and lower guide 51 slides upward through the first guide sleeve 54; the second end 532 of the pivot frame 53 is pivotally connected to the lower end of the second upper and lower guide 52 to define a fourth pivot line C4, the second guide sleeve 55 is pivotally connected to the lifting bracket 22 to define a fifth pivot line C5, and the upper end of the second upper and lower guide 52 slides upward through the second guide sleeve 55, and the first pivot line C1 to the fifth pivot line C5 are parallel, as shown in Figure 3 shown.
[0028] It can be understood that in another embodiment, the upper end of the first upper and lower guide 51 can be pivotally connected to the lifting bracket 22, the first guide sleeve 54 can be pivotally connected to the first end 531 of the pivot frame 53, and the lower end of the first upper and lower guide 51 slides downward through the first guide sleeve 54; at the same time, the upper end of the second upper and lower guide 52 is pivotally connected to the lifting bracket 22, the second guide sleeve 55 is pivotally connected to the second end 532 of the pivot frame 53, and the lower end of the second upper and lower guide 52 slides downward through the second guide sleeve 55; or, in yet another embodiment, while maintaining that "the first end 531 of the pivot frame 53 is pivotally connected to the lower end of the first upper and lower guide 51, the first guide sleeve 54 is pivotally connected to the lifting bracket 22, and the upper end of the first upper and lower guide 51 slides upward through the first guide sleeve 54", the upper end of the second upper and lower guide 52 is pivotally connected to the lifting bracket 22, the second guide sleeve 55 is pivotally connected to the second end 532 of the pivot frame 53, and the lower end of the second upper and lower guide 52 slides downward through the second guide sleeve 55; of course, it is also possible to maintain that "the second end 532 of the pivot frame 53 is pivotally connected to the lower end of the second upper and lower guide 52, the second guide sleeve 55 is pivotally connected to the lifting bracket 22, and the upper end of the second upper and lower guide 52 slides upward through the second guide sleeve 55", and pivotally connect the first guide sleeve 54 to the first end 531 of the pivot frame 53, pivotally connect the upper end of the first upper and lower guide 51 to the lifting bracket 22, and slide the lower end of the first upper and lower guide 51 downward through the first guide sleeve 54. More specifically, as follows:
[0029] As Figure 3 , Figure 5 and Figure 6As shown, as an example, the pivot swing frame 53 includes a cross frame 533, a first side frame located at one end of the cross frame 533, and a second side frame located at the opposite end of the cross frame 533, such that the first side frame and the second side frame are arranged opposite to each other in the length direction of the cross frame 533; the cross frame 533 is pivotally connected to the lifting bracket 22, and the first side frame and the second side frame protrude downward from the cross frame 533. The first side frame forms the first end 531 of the pivot swing frame 53, that is, the first end 531 is the first side frame. Therefore, the reference numeral 531 also refers to the first side frame; the second side frame forms the second end 532 of the pivot swing frame 53, that is, the second end 532 is the second side frame. Therefore, the reference numeral 532 also refers to the second side frame; the roller 23 is located in the space 56 surrounded by the cross frame 533, the first side frame 531, and the second side frame 532, and the roller 23 is also located directly below the cross frame 533. The purpose of this design is: while maintaining the support of the pivot swing frame 53 for the roller 23 from both ends, it also makes the cooperation between the pivot swing frame 53 and the roller 23 more compact. Specifically, in Figure 3 , Figure 5 and Figure 6 , as an example, the first upper and lower guide member 51 is located beside the first side frame 531, and the second upper and lower guide member 52 is located beside the second side frame 532. For example, the first upper and lower guide member 51 is located beside the left side of the first side frame 531, and the second upper and lower guide member 52 is located beside the right side of the second side frame 532. This design makes the pivotal connection between the lower end of the first upper and lower guide member 51 and the first side frame 531 more reliable, and the pivotal connection between the second upper and lower guide member 52 and the second side frame 532 more reliable; in addition, the lower side profile of the lifting bracket 22 facing the cross frame 533 is a tapered profile 2221 that is low in the middle and high on both sides. The first pivot line C1 is located directly above the middle of the tapered profile 2221, so as to provide sufficient clearance space for the swing of the pivot swing frame 53 around the first pivot line C1 by means of the tapered profile 2221, thereby allowing the gap between the pivot swing frame 53 and the lifting bracket 22 to be made smaller. More specifically, in Figure 4 , as an example, the self-adjusting device 50 further includes a bearing seat 57 and a pivot swing shaft 58 rotatably passing through the bearing seat 57. The axis line of the pivot swing shaft 58 forms the first pivot line C1. The pivot swing shaft 58 is fixedly connected to the lifting bracket 22, the bearing seat 57 is fixedly connected to the cross frame 533, and the pivot swing shaft 58 is located directly above the middle of the tapered profile 2221, so as to increase the load-bearing capacity of the lifting bracket 22 for the pivot swing frame 53 on the one hand and make the swing of the pivot swing frame 53 relative to the lifting bracket 22 smoother on the other hand by means of the cooperation of the bearing seat 57 and the pivot swing shaft 58. It can be understood that, according to actual needs, the fixed positions of the bearing seat 57 and the pivot swing shaft 58 can be swapped, that is, the bearing seat 57 is fixed to the lifting bracket 22, and the pivot swing shaft 58 is fixed to the pivot swing frame 53, and the purpose of the pivot swing frame 53 pivoting relative to the lifting bracket 22 by means of the cooperation of the pivot swing shaft 58 and the bearing seat 57 can still be achieved.
[0030] As Figures 1 to 6 shown, as an example, the lifting bracket 22 includes a top plate 221 located directly above the suspension cross beam 12, a bottom plate 222 located directly below the suspension cross beam 12, and an intermediate rod 223 connected between the top plate 221 and the bottom plate 222. The intermediate rod 223 is slidably disposed through the transverse movement seat 30 in the up and down direction of the frame 10, so that the sliding connection between the lifting bracket 22 and the transverse movement seat 30 is smoother; the output end 211 of the lifting drive 21 is arranged in the up and down direction of the frame 10, the output end 211 of the lifting drive 21 is arranged upward, and the output end 211 of the lifting drive 21 is assembled and connected to the top plate 221; of course, according to actual needs, the output end 211 of the lifting drive 21 can also be arranged downward, in which case the output end 211 of the lifting drive 21 is assembled and connected to the bottom plate 222. Specifically, in Figure 1 and Figure 2 as an example, the transverse movement seat 30 straddles the suspension cross beam 12 and is provided with a first up and down guide sleeve 31 and a second up and down guide sleeve 32. The first up and down guide sleeve 31 is arranged opposite to the second up and down guide sleeve 32 along the direction in which the transverse movement seat 30 straddles the suspension cross beam 12 (see the direction indicated by arrow B), so that the suspension cross beam 12 is located between the first up and down guide sleeve 31 and the second up and down guide sleeve 32. The intermediate rod 233 is respectively slidably disposed through the first up and down guide sleeve 31 and the second up and down guide sleeve 32. Such a design increases the load-bearing capacity of the transverse movement seat 30 for the lifting bracket 22 on the one hand, and improves the smoothness of the up and down movement of the lifting bracket 22 relative to the transverse movement seat 30 on the other hand. It should be noted that when the lifting bracket 22 includes a top plate 221, a bottom plate 222 and an intermediate rod 223, the conical contour 2221 is formed at the bottom plate 222 at this time, and the bottom plate 222 is also pivotally connected to the first guide sleeve 54 and the second guide sleeve 55 respectively.
[0031] As Figure 1 shown, as an example, the mattress testing machine 100 of the present invention further includes an edge testing device 60 that can move in the up and down direction along the frame 10, a height measuring device 70 that can move in the up and down direction along the frame 10, and a softness and hardness testing device 80 that can move in the up and down direction along the frame 10. The edge testing device 60 is installed on the transverse movement seat 30 and along the transverse movement direction of the transverse movement seat 30 (see Figure 1in the left - right direction of the frame 10) are arranged separately from the rolling device 20. The edge testing device 60, the height measuring device 70, the rolling device 20, and the soft - hardness testing device 80 are arranged in sequence along the transverse movement direction of the transverse movement seat 30. With the help of the edge testing device 60, it is used to test the edge of the mattress 200. With the help of the height measuring device 70, it is used to detect the height of the mattress surface before and after being rolled by the rolling device 20. With the help of the soft - hardness testing device 80, it is used to detect the soft - hardness of the mattress surface of the mattress 200, so that the mattress testing machine 100 of the present invention can comprehensively test the mattress 200. In addition, regarding the specific structures of the edge testing device 60, the height measuring device 70, and the soft - hardness testing device 80, reference can be made to the documents cited in the background art of this application, so they will not be elaborated here.
[0032] Combined with Figure 3 、 Figure 5 and Figure 6 , the automatic adjustment of the roller 23 is described as follows: When the roller 23 is pushed by the mattress surface of the mattress 200 and rotates around the first pivot line C1, the left end of the roller 23 moves downward and the right end moves upward. During the process that the left end of the roller 23 drives the first upper - lower guide 51 to slide downward relative to the first guide sleeve 54, the first upper - lower guide 51 makes an adaptive pivot around the second pivot line C2, and the first guide sleeve 54 makes an adaptive pivot around the third pivot line C3; similarly, during the process that the right end of the roller 23 drives the second upper - lower guide 52 to slide upward relative to the second guide sleeve 55, the second upper - lower guide 52 makes an adaptive pivot around the fourth pivot line C4, and the second guide sleeve 55 makes an adaptive pivot around the fifth pivot line C5; thus, the state shown by Figure 3 is switched to the state shown by Figure 5 . When the left end of the roller 23 moves upward and the right end moves downward, the left end of the roller 23 drives the first upper - lower guide 51 to slide upward, and the right end of the roller 23 drives the second upper - lower guide 52 to slide downward. During the process that the left end of the roller 23 drives the first upper - lower guide 51 to slide upward, the first upper - lower guide 51 makes an adaptive pivot around the second pivot line C2, and the first guide sleeve 54 makes an adaptive pivot around the third pivot line C3; similarly, during the process that the right end of the roller 23 drives the second upper - lower guide 52 to slide downward, the second upper - lower guide 52 makes an adaptive pivot around the fourth pivot line C4, and the second guide sleeve 55 makes an adaptive pivot around the fifth pivot line C5; thus, the state shown by Figure 3 is switched to the state shown by Figure 6 .
[0033] Compared with the prior art, with the cooperation of the first upper and lower guide 51, the second upper and lower guide 52, the pivoting frame 53 directly below the lifting bracket 22, the first guide sleeve 54 and the second guide sleeve 55, during the process that the lifting driver 21 drives the lifting bracket 22 together with the self-adjusting device 50 and the roller 23 to press down the surface of the mattress 200, the two ends of the roller 23 automatically pivot and adjust around the first pivot line C1 during the process that the roller 23 abuts against the surface of the mattress, so that the roller 23 can better keep in close contact with the surface of the mattress; at the same time, during the process that the transverse movement driving device 40 drives the roller 23 to perform transverse rolling on the surface of the mattress through the transverse movement seat 30, the roller 23 also automatically pivots and adjusts around the first pivot line C1, so that the roller 23 keeps in close contact with the surface of the mattress during the durability test of the surface of the mattress, ensuring the reliability of the durability test of the surface of the mattress.
[0034] It should be noted that the direction indicated by the arrow A is the direction from top to bottom of the frame 10, Figure 1 the direction indicated by the arrow in the lower left corner is the direction from left to right of the frame 10, and the direction indicated by the arrow B is the direction from front to back of the frame 10; and it can be known from Figure 2 that the first upper and lower guide 51 is located in front of the frame 10, and the second upper and lower guide 52 is located behind the frame 10. Preferably, each of the first upper and lower guide 51 and the second upper and lower guide 52 is a guide rod. When each of the first upper and lower guide 51 and the second upper and lower guide 52 is a guide rod, at this time the first matching guide part is the first guide sleeve 54, and the second matching guide part is the second guide sleeve 55. When each of the first upper and lower guide 51 and the second upper and lower guide 52 is a slide rail, at this time each of the first matching guide part and the second matching guide part is a slider. In addition, the transverse movement driving device can be composed of a motor and a belt drive, or can be composed of a motor and a chain drive, or can also be composed of a motor and a lead screw and nut drive, but these are all well-known in the art.
[0035] The above-disclosed are only the preferred examples of the present invention, which are used to facilitate the understanding of those skilled in the art and to implement accordingly. Of course, the scope of the rights of the present invention cannot be limited by this. Therefore, the equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.
Claims
1. A mattress testing machine, comprising a frame, a rolling device, a transverse moving seat and a transverse moving driving device. The frame includes a foot frame and a suspension cross beam fixedly connected to the foot frame. The transverse moving seat is movably mounted on the suspension cross beam. The rolling device includes a lifting driver, a lifting bracket and a roller. The lifting bracket is slidably connected to the transverse moving seat along the up and down direction of the frame. The lifting driver is assembled between the transverse moving seat and the lifting bracket. The transverse moving driving device is mounted on the frame and drives the transverse moving seat together with the rolling device to move transversely on the suspension cross beam. It is characterized in that, The mattress testing machine further includes a self-adjusting device. The self-adjusting device includes a first up-and-down guide, a second up-and-down guide, a first mating guide, a second mating guide, and a pivot frame located directly below the lifting bracket. The first end and the second end of the pivot frame are respectively rotatably connected to the rollers. The position of the pivot frame between the first end and the second end is pivotally connected to the lifting bracket to define a first pivot line. One of the first end of the pivot frame and the lifting bracket is pivotally connected to one end of the first up-and-down guide to define a second pivot line. The other of the first end of the pivot frame and the lifting bracket is pivotally connected to the first mating guide to define a third pivot line. The opposite ends of the first up-and-down guide are slidably connected to the first mating guide. One of the second end of the pivot frame and the lifting bracket is pivotally connected to one end of the second up-and-down guide to define a fourth pivot line. The other of the second end of the pivot frame and the lifting bracket is pivotally connected to the second mating guide to define a fifth pivot line. The opposite ends of the second up-and-down guide are slidably connected to the second mating guide. The first pivot line to the fifth pivot line are parallel. The pivot frame includes a cross frame, a first side frame located at one end of the cross frame, and a second side frame located at the opposite end of the cross frame. The cross frame is pivotally connected to the lifting bracket. The first side frame and the second side frame protrude downward from the cross frame. The first side frame forms the first end of the pivot frame, and the second side frame forms the second end of the pivot frame. The roller is located in the space surrounded by the cross frame, the first side frame, and the second side frame, and the roller is also located directly below the cross frame. The lifting bracket includes a top plate located directly above the suspension cross beam, a bottom plate located directly below the suspension cross beam, and an intermediate rod connected between the top plate and the bottom plate. The intermediate rod is slidably inserted into the cross movement seat in the up-and-down direction of the machine frame. The output end of the lifting drive is arranged in the up-and-down direction of the machine frame, and the output end of the lifting drive is assembled and connected to the top plate or the bottom plate.
2. The mattress testing machine according to claim 1, wherein The first up-and-down guide is located beside the first side frame. The lower end of the first up-and-down guide is pivotally connected to the first side frame. The first mating guide is a first guide sleeve located on the lifting bracket. The upper end of the first up-and-down guide slides upward through the first guide sleeve. The second up-and-down guide is located beside the second side frame. The lower end of the second up-and-down guide is pivotally connected to the second side frame. The second mating guide is a second guide sleeve located on the lifting bracket. The upper end of the second up-and-down guide slides upward through the second guide sleeve.
3. The mattress testing machine according to claim 1, characterized in that, The lower side contour of the lifting bracket facing the cross frame is a conical contour that is low in the middle and high on both sides. The first pivot line is located directly above the middle of the conical contour.
4. The mattress testing machine according to claim 3, wherein, The self-adjusting device further includes a bearing seat and a pivot shaft rotatably disposed in the bearing seat. The axis line of the pivot shaft forms the first pivot connection line. One of the pivot shaft and the bearing seat is fixedly connected to the lifting bracket, and the other of the pivot shaft and the bearing seat is fixedly connected to the cross frame. The pivot shaft is located directly above the middle of the conical profile.
5. The mattress testing machine according to claim 1, characterized in that, The transverse seat straddles the suspension cross beam and is provided with a first upper and lower guide sleeve and a second upper and lower guide sleeve. The first upper and lower guide sleeve and the second upper and lower guide sleeve are oppositely arranged along the direction in which the transverse seat straddles the suspension cross beam, so that the suspension cross beam is located between the first upper and lower guide sleeve and the second upper and lower guide sleeve. The intermediate rod is respectively slidably disposed in the first upper and lower guide sleeve and the second upper and lower guide sleeve.
6. The mattress testing machine according to claim 1, wherein, It further includes an edge testing device that can move in the up and down direction of the machine frame. The edge testing device is installed on the transverse seat and is arranged at intervals from the rolling device along the transverse movement direction of the transverse seat.
7. The mattress testing machine according to claim 6, characterized in that It further includes a height measuring device and a softness and hardness testing device that can each move in the up and down direction of the machine frame and are installed on the transverse seat. The edge testing device, the height measuring device, the rolling device, and the softness and hardness testing device are arranged in sequence along the transverse movement direction of the transverse seat.
8. The mattress testing machine according to claim 1, wherein, The machine frame further includes a mattress placement table located directly below the suspension cross beam. The footrests are two and form a gantry with the suspension cross beam. Each footrest is fixedly connected to the mattress placement table.
Citation Information
Patent Citations
Mattress roll extrusion tester
CN206891673U
Laser processing equipment for circular saw tool bit
CN215941835U