Large-scale air cushion bed rolling test machine

Abstract

The utility model relates to the technical field of air cushion bed test equipment, and discloses a large-scale air cushion bed rolling test machine, which comprises a rolling test support plate, a U-shaped frame body is arranged on the rolling test support plate, two sides of the U-shaped frame body are movably arranged on two sides of the rolling test support plate, and the U-shaped frame body is arranged on the U-shaped frame body. A rolling test supporting plate is arranged on the U-shaped frame body, a movement driving mechanism used for driving the U-shaped frame body to move horizontally is arranged on the rolling test supporting plate, a rolling test mechanism is arranged on the U-shaped frame body, the rolling test mechanism comprises a rolling cylinder, and the rolling cylinder is connected with a rolling driving air cylinder through a lever mechanism. The rolling test mechanism is driven by the lever mechanism, so that the power cost of equipment is effectively reduced, the service life of the equipment is effectively prolonged, and meanwhile, the stress distribution mode of a mattress when a person rolls on the mattress can be simulated by reasonably distributing the positions of rolling pieces with different densities on the mandrel; and the accuracy of rolling test data is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air mattress testing equipment, and particularly relates to a large air mattress rolling testing machine. Background Art

[0002] An air mattress, also known as an air bed or inflatable bed, is a portable mattress that can provide sleep support and comfort through inflation. Inflatable mattresses are usually made of soft materials such as PVC (polyvinyl chloride) or nylon, and are filled with air inside to provide support. The use of inflatable mattresses is very convenient, especially when a temporary sleep solution is needed, such as during camping, traveling or when guests visit. These mattresses can usually be inflated by a manual or electric pump, and the inflation pressure can be adjusted according to personal hardness preferences and sleep needs. Compared with traditional mattresses, inflatable mattresses are light in weight, easy to fold and carry, which makes them an ideal choice for camping, traveling and outdoor activities, because they can be easily packed into luggage or backpacks. Inflatable mattresses can usually be inflated and adjusted according to personal hardness preferences, and the inflation pressure can be increased or decreased to obtain a more comfortable and supportive feel that meets one's own needs. Inflatable mattresses need to be able to withstand the pressure and movement during daily use, such as human rolling, changing weight distribution and sleep postures. In order to evaluate the durability, structural stability, pressure distribution of the mattress and ensure product quality, rolling tests are required.

[0003] Traditional large mattress testing machines are not only complex in structure, but also take up a large amount of space. When rolling tests are carried out on mattresses, relatively large pressure is usually applied to the rollers throughout the test process. Therefore, the power equipment of the mattress testing machine needs to bear a large reaction force during the test, which affects the service life of the power equipment. Moreover, since the weight distribution of different parts of the human body is not the same, and the torso is heavier than the head and lower limbs, the force on the mattress when a person rolls over on the mattress is different from the force distribution mode when the above rollers repeatedly roll on the mattress, resulting in relatively low accuracy of the test data. Therefore, there is an urgent need for a testing device that can solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a large air mattress rolling testing machine, which drives the rolling test mechanism through a lever mechanism, effectively reduces the power cost of the equipment, effectively improves the service life of the equipment, and at the same time can also simulate the force distribution mode of the mattress when a person rolls over on the mattress by reasonably distributing the positions of rolling parts with different densities on the mandrel, greatly improving the accuracy of the rolling test data.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A large air mattress rolling test machine, including a rolling test support plate, on which a U-shaped frame is provided. The two sides of the U-shaped frame are movably installed on the two sides of the rolling test support plate. A moving driving mechanism for driving the horizontal movement of the U-shaped frame is provided on the rolling test support plate. A rolling test mechanism is provided on the U-shaped frame. The rolling test mechanism includes a rolling cylinder, and the rolling cylinder is connected to a rolling driving cylinder through a lever mechanism.

[0007] By adopting the above technical solution, the air mattress to be tested is placed on the rolling test support plate. Then, the moving driving mechanism drives the rolling test mechanism to move relative to the rolling test support plate along with the U-shaped frame. At the same time, the rolling driving cylinder drives the lever mechanism to apply a downward force to the rolling cylinder in the rolling test mechanism, so that the rolling cylinder rolls back and forth on the upper surface of the air mattress with a set rolling pressure. Thus, the rolling test operation of the air mattress is realized. The lever mechanism can achieve a large rolling pressure with only a small driving force, greatly reducing the power cost of the rolling test power equipment. At the same time, since the force applied by the power equipment is small, the reaction force received by the power equipment is also small, extending the service life of the power equipment, killing two birds with one stone.

[0008] The further setting of the present utility model is: The moving driving mechanism includes T-shaped chutes provided on both sides of the rolling test support plate. The two sides of the bottom of the U-shaped frame are slidably matched with the T-shaped chutes. A rack parallel to the T-shaped chute is also provided on one side of the T-shaped chute. A gear meshing with the rack is also provided on the U-shaped frame. The gear is rotatably connected to the U-shaped frame through a gear rotating shaft. One end of the gear rotating shaft is connected to the output shaft of a moving driving motor provided on the U-shaped frame.

[0009] By adopting the above technical solution, after the driving motor is started, it drives the gear rotating shaft to rotate. When the gear rotating shaft rotates, it drives the gear to rotate. When the gear rotates, it will drive the U-shaped frame to slide along the T-shaped chute. When the U-shaped frame slides along the T-shaped chute, it drives the rolling test mechanism to move back and forth along the air mattress on the rolling test support plate to realize the rolling operation. The structure is simple and the operation is convenient.

[0010] The further setting of the present utility model is: The lever mechanism includes lever one and lever two respectively located on both sides of the rolling cylinder and rotatably connected to the rolling cylinder. The centers of lever one and lever two on the side close to the installation position of the rolling cylinder are rotatably connected to the two sides of the U-shaped frame through a support rotating shaft. The ends of lever one and lever two far from the rolling cylinder are respectively rotatably connected to the two ends of a connecting rod. The connecting rod is hinged to the telescopic shaft of a rolling driving cylinder provided on the U-shaped frame.

[0011] By adopting the above technical solution, when it is necessary to apply a rolling pressure to the rolling cylinder, the telescopic shaft of the rolling drive cylinder is controlled to contract, so that the connecting rod drives one end of the first lever and the second lever connected thereto to move upward, thereby causing the ends of the first lever and the second lever connected to the rolling cylinder to move downward, so as to apply a rolling pressure to the rolling cylinder. The supporting rotating shaft is the fulcrum of the first lever and the second lever, and the supporting rotating shaft is located on one side of the center of the first lever and the second lever close to the installation position of the rolling cylinder. Therefore, according to the lever balance condition, the rolling drive cylinder applies a small force to one end of the first lever and the second lever connected thereto, and the roller connected to the other end of the first lever and the second lever can apply a large downward extrusion force to the mattress. Therefore, the power cost of the rolling test power equipment is reduced, the reaction force received by the power equipment is reduced, and the service life of the power equipment is improved.

[0012] A further setting of the present utility model is that one end of the rolling cylinder is connected to a rolling drive motor fixed on the first lever or the second lever.

[0013] By adopting the above technical solution, the rolling drive motor is used to drive the rolling cylinder to rotate, so that a rolling effect is formed when the rolling cylinder moves back and forth along with the U-shaped frame during the rolling test, and at the same time, the rolling speed of the rolling cylinder is controlled to match the moving speed, so that the rolling cylinder does not have sliding friction with the mattress during the back-and-forth rolling process, greatly reducing the probability of mattress wear and effectively ensuring the appearance quality of the mattress.

[0014] A further setting of the present utility model is that the rolling cylinder is composed of a core shaft and a plurality of rolling parts with the same size and structure sequentially sleeved on the core shaft. Each rolling part is axially abutted in sequence and is detachably connected to the core shaft. The rolling cylinder is rotationally connected to the first lever and the second lever through the core shaft, and the rolling parts move synchronously with the core shaft.

[0015] By adopting the above technical solution, the rolling cylinder is composed of a core shaft and a plurality of rolling parts. By increasing or decreasing the number of rolling parts, the purpose of adjusting the weight of the entire rolling cylinder is achieved, so as to achieve the effect of meeting different rolling requirements, greatly improving the versatility of the equipment. The rolling parts and the core shaft can be detachably connected by means of threaded connection or bolt fixed connection, etc., with low processing cost and good adaptability.

[0016] A further setting of the present utility model is that the rolling parts are made of materials with different densities, and the density distribution of the rolling parts on the core shaft corresponds to the weights of different parts of the human body.

[0017] By adopting the above technical solution, since the size structures of the rolling members are the same, when the densities of the rolling members are different, their weights are different. The positions of the rolling members with different densities on the mandrel can be reasonably allocated according to the weight distribution of different parts of the human body, so as to simulate the force distribution mode of the mattress when a person rolls on the mattress, greatly improving the accuracy of the rolling test data.

[0018] A further setting of the present utility model is that a layer of silica gel soft pad is laid on the supporting surface of the rolling test support plate, and uniform anti-slip lines are provided on the upper surface of the silica gel soft pad.

[0019] By adopting the above technical solution, on the one hand, the setting of the silica gel soft pad can reduce the relative friction between the mattress and the rolling test support plate, thus effectively avoiding poor appearance quality caused by mattress wear. At the same time, by utilizing the soft performance of the silica gel soft pad and the friction of the anti-slip lines on the silica gel soft pad, the mattress is subjected to a large horizontal frictional resistance, so that the mattress will not move back and forth with the rolling cylinder during the rolling test, effectively improving the reliability of the rolling test.

[0020] The beneficial effects of the present utility model are:

[0021] 1. When the present utility model works, first place the air mattress to be tested on the rolling test support plate, and then drive the rolling test mechanism to move relative to the rolling test support plate along with the U-shaped frame body through the moving drive mechanism. At the same time, the rolling drive cylinder drives the lever mechanism to apply a downward force to the rolling cylinder in the rolling test mechanism, so that the rolling cylinder rolls back and forth on the upper surface of the air mattress with a set rolling pressure. Therefore, the rolling test operation of the air mattress is realized. The lever mechanism can achieve a large rolling pressure with only a small driving force, greatly reducing the power cost of the rolling test power equipment. At the same time, since the force applied by the power equipment is small, the reaction force received by the power equipment is also small, extending the service life of the power equipment, killing two birds with one stone.

[0022] 2. The present utility model drives the rolling cylinder to rotate through the rolling drive motor, so that when performing the rolling test, the rolling cylinder forms a rolling effect during the process of moving back and forth along with the U-shaped frame body. At the same time, the rolling speed of the rolling cylinder is controlled to match the moving speed, so that the rolling cylinder will not have sliding friction with the mattress during the process of rolling back and forth, greatly reducing the probability of mattress wear and effectively ensuring the appearance quality of the mattress.

[0023] 3. In the present utility model, the rolling cylinder is composed of a mandrel and a plurality of rolling members. By increasing or decreasing the number of rolling members, the purpose of adjusting the weight of the entire rolling cylinder is achieved, so as to realize the effect of meeting different rolling requirements, greatly improving the versatility of the equipment. The rolling members and the mandrel can adopt detachable connection methods such as threaded connection or bolt fixed connection, with low processing cost and good adaptability.

[0024] 4. In the present utility model, the size structures of the rolling members are the same, but the densities are different, so the weights are different. When reasonably distributing the positions of the rolling members with different densities on the mandrel according to the weight distribution of different parts of the human body, the force distribution mode of the mattress when a person rolls over on the mattress can be simulated, greatly improving the accuracy of the rolling test data.

[0025] 5. The setting of the silica gel soft pad in the present utility model can, on the one hand, reduce the relative friction between the mattress and the rolling test support plate, thus effectively avoiding poor appearance quality caused by mattress wear. At the same time, by utilizing the soft performance of the silica gel soft pad and the friction wheels on the anti-slip lines of the silica gel soft pad, the mattress is subjected to a large horizontal friction resistance, so that the mattress will not move back and forth with the rolling cylinder during the rolling test, effectively improving the reliability of the rolling test. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 It is the overall structural schematic diagram of a large air cushion bed rolling test machine of the present utility model.

[0028] In the figure, 1, rolling test support plate; 2, U-shaped frame body; 3, moving drive mechanism; 31, T-shaped sliding groove; 32, rack; 33, gear; 34, gear rotating shaft; 35, moving drive motor; 4, rolling test mechanism; 41, rolling cylinder; 411, mandrel; 412, rolling member; 42, rolling drive motor; 5, lever mechanism; 51, lever one; 52, lever two; 53, support rotating shaft; 54, connecting rod; 6, rolling drive cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0030] Such as Figure 1As shown in the figure, a large air cushion bed rolling test machine includes a rolling test support plate 1. A U-shaped frame 2 is provided on the rolling test support plate 1. Both sides of the U-shaped frame 2 are movably installed on both sides of the rolling test support plate 1. A moving drive mechanism 3 for driving the U-shaped frame 2 to move horizontally is provided on the rolling test support plate 1. A rolling test mechanism 4 is provided on the U-shaped frame 2. The rolling test mechanism 4 includes a rolling cylinder 41, and the rolling cylinder 41 is connected to a rolling drive cylinder 6 through a lever mechanism 5.

[0031] Furthermore, the moving drive mechanism 3 includes T-shaped chutes 31 provided on both sides of the rolling test support plate 1. Both sides of the bottom of the U-shaped frame 2 are slidably matched with the T-shaped chutes 31. A rack 32 parallel to the T-shaped chutes 31 is further provided on one side of the T-shaped chutes 31. A gear 33 meshing with the rack 32 is further provided on the U-shaped frame 2. The gear 33 is rotatably connected to the U-shaped frame 2 through a gear rotating shaft 34. One end of the gear rotating shaft 34 is connected to the output shaft of a moving drive motor 35 provided on the U-shaped frame 2.

[0032] Furthermore, the lever mechanism 5 includes a lever one 51 and a lever two 52 respectively located on both sides of the rolling cylinder 41 and rotatably connected to the rolling cylinder 41. One side of the centers of the lever one 51 and the lever two 52 close to the installation position of the rolling cylinder 41 is rotatably connected to both sides of the U-shaped frame 2 through a support rotating shaft 53. The ends of the lever one 51 and the lever two 52 far from the rolling cylinder 41 are respectively rotatably connected to both ends of a connecting rod 54. The connecting rod 54 is hinged to the telescopic shaft of a rolling drive cylinder 6 provided on the U-shaped frame 2.

[0033] Furthermore, one end of the rolling cylinder 41 is connected to a rolling drive motor 42 fixed on the lever one 51 or the lever two 52.

[0034] Furthermore, the rolling cylinder 41 is composed of a core shaft 411 and a plurality of rolling parts 412 with the same size and structure sequentially sleeved on the core shaft 411. Each rolling part 412 is axially abutted in sequence and is detachably connected to the core shaft 411 (which can be but is not limited to being connected by threading or bolt fixing, etc.). The rolling cylinder 41 is rotatably connected to the lever one 51 and the lever two 52 through the core shaft 411. The rolling parts 412 move synchronously with the core shaft 411.

[0035] Furthermore, the rolling parts 412 are made of materials with different densities, and the density distribution of the rolling parts on the core shaft 411 corresponds to the weights of different parts of the human body out of sync.

[0036] Furthermore, a layer of silicone soft pad is laid on the support surface of the rolling test support plate 1, and the upper surface of the silicone soft pad is provided with uniform anti-slip lines.

[0037] Working principle of the utility model: Place the air mattress to be tested on the rolling test support plate 1, and then drive the rolling test mechanism 4 to move relative to the rolling test support plate 1 along with the U-shaped frame body 2 through the moving drive mechanism 3. At the same time, the rolling drive cylinder 6 drives the lever mechanism 5 to apply a downward force to the rolling cylinder 41 in the rolling test mechanism 4, so that the rolling cylinder 41 rolls back and forth on the upper surface of the air mattress with a set rolling pressure, thus realizing the rolling test operation of the air mattress. The lever mechanism 5 can achieve a large rolling pressure with only a small driving force, greatly reducing the power cost of the rolling test power equipment. At the same time, since the force applied by the power equipment is small, the reaction force received by the power equipment is also small, extending the service life of the power equipment, achieving two goals with one action.

[0038] Among them, the rolling cylinder 41 is composed of a core shaft 411 and a plurality of rolling members 412. The weight of the entire rolling cylinder 41 is adjusted by increasing or decreasing the number of rolling members 412, so as to achieve the effect of different rolling requirements, greatly improving the versatility of the equipment. The rolling members 412 and the core shaft 411 can be detachably connected by means of threaded connection or bolt fixed connection, etc., with low processing cost and good adaptability.

[0039] Among them, the rolling members 412 are made of materials with different densities. The density distribution of the rolling members on the core shaft 411 corresponds to the weights of different parts of the human body. Therefore, the positions of the rolling members 412 with different densities on the core shaft 411 can be reasonably allocated according to the weight distribution of different parts of the human body, so as to simulate the force distribution mode of the mattress when a person rolls on the mattress, greatly improving the accuracy of the rolling test data.

Claims

1. A large air mattress rolling tester, characterized in that: It includes a rolling test support plate (1), on which a U-shaped frame body (2) is provided. The two sides of the U-shaped frame body (2) are movably installed on the two sides of the rolling test support plate (1). A moving drive mechanism (3) for driving the horizontal movement of the U-shaped frame body (2) is provided on the rolling test support plate (1). A rolling test mechanism (4) is provided on the U-shaped frame body (2), and the rolling test mechanism (4) includes a rolling cylinder (41), and the rolling cylinder (41) is connected to a rolling drive cylinder (6) through a lever mechanism (5).

2. The large air mattress rolling tester according to claim 1, characterized in that: The moving drive mechanism (3) includes T-shaped chutes (31) provided on both sides of the rolling test support plate (1). The two sides of the bottom of the U-shaped frame body (2) are slidably matched with the T-shaped chutes (31). A rack (32) parallel to the T-shaped chute (31) is further provided on one side of the T-shaped chute (31). A gear (33) meshing with the rack (32) is further provided on the U-shaped frame body (2). The gear (33) is rotatably connected to the U-shaped frame body (2) through a gear rotating shaft (34), and one end of the gear rotating shaft (34) is connected to the output shaft of a moving drive motor (35) provided on the U-shaped frame body (2).

3. A large air cushion bed rolling tester according to claim 1, characterized in that: The lever mechanism (5) includes a lever one (51) and a lever two (52) respectively located on both sides of the rolling cylinder (41) and rotatably connected to the rolling cylinder (41). The centers of the lever one (51) and the lever two (52) are rotatably connected to the two sides of the U-shaped frame body (2) through a support rotating shaft (53) on the side close to the installation position of the rolling cylinder (41). The ends of the lever one (51) and the lever two (52) far from the rolling cylinder (41) are respectively rotatably connected to the two ends of a connecting rod (54), and the connecting rod (54) is hinged to the telescopic shaft of a rolling drive cylinder (6) provided on the U-shaped frame body (2).

4. The large air mattress rolling tester according to claim 3, characterized in that: One end of the rolling cylinder (41) is connected to a rolling drive motor (42) fixed on the lever one (51) or the lever two (52).

5. A large air mattress rolling test machine according to claim 4, characterized in that: The rolling cylinder (41) is composed of a core shaft (411) and a plurality of rolling parts (412) with the same size and structure sequentially sleeved on the core shaft (411). Each rolling part (412) is axially abutted in sequence and detachably connected to the core shaft (411). The rolling cylinder (41) is rotatably connected to the lever one (51) and the lever two (52) through the core shaft (411), and the rolling parts (412) move synchronously with the core shaft (411).

6. A large air cushion bed rolling tester according to claim 5, characterized in that: The rolling parts (412) are made of materials with different densities, and the density distribution of the rolling parts on the core shaft (411) corresponds to the weights of different parts of the human body out of sync.

7. A large air mattress rolling test machine according to claim 1, characterized in that: A layer of silica gel soft pad is laid on the support surface of the rolling test support plate (1), and uniform anti-slip lines are provided on the upper surface of the silica gel soft pad.

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